From c5557b4f84cb665ae3679e5c57fe3602e5d06115 Mon Sep 17 00:00:00 2001 From: "lrn@google.com" Date: Thu, 19 Dec 2013 11:57:56 +0000 Subject: [PATCH 001/235] Create associated packages for the dart:collection and dart:async libs. R=sgjesse@google.com Review URL: https://codereview.chromium.org//113883002 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/collection@31260 260f80e4-7a28-3924-810f-c04153c831b5 --- pkgs/collection/README.md | 55 ++ pkgs/collection/lib/algorithms.dart | 301 +++++++++ pkgs/collection/lib/collection.dart | 22 + pkgs/collection/lib/equality.dart | 419 ++++++++++++ .../lib/src/unmodifiable_wrappers.dart | 251 +++++++ pkgs/collection/lib/wrappers.dart | 334 ++++++++++ pkgs/collection/pubspec.yaml | 9 + pkgs/collection/test/algorithms_test.dart | 271 ++++++++ pkgs/collection/test/equality_test.dart | 164 +++++ .../test/unmodifiable_collection_test.dart | 629 ++++++++++++++++++ pkgs/collection/test/wrapper_test.dart | 255 +++++++ 11 files changed, 2710 insertions(+) create mode 100644 pkgs/collection/README.md create mode 100644 pkgs/collection/lib/algorithms.dart create mode 100644 pkgs/collection/lib/collection.dart create mode 100644 pkgs/collection/lib/equality.dart create mode 100644 pkgs/collection/lib/src/unmodifiable_wrappers.dart create mode 100644 pkgs/collection/lib/wrappers.dart create mode 100644 pkgs/collection/pubspec.yaml create mode 100644 pkgs/collection/test/algorithms_test.dart create mode 100644 pkgs/collection/test/equality_test.dart create mode 100644 pkgs/collection/test/unmodifiable_collection_test.dart create mode 100644 pkgs/collection/test/wrapper_test.dart diff --git a/pkgs/collection/README.md b/pkgs/collection/README.md new file mode 100644 index 00000000..bb392fd3 --- /dev/null +++ b/pkgs/collection/README.md @@ -0,0 +1,55 @@ +Helper libraries for working with collections. + +The `collection` package contains a number of separate libraries +with utility functions and classes that makes working with collections easier. + +## Using + +The `collection` package can be imported as separate libraries, or +in totality: + + import 'package:collection/equality.dart'; + import 'package:collection/algorithms.dart'; + import 'package:collection/wrappers.dart'; + +or + + import 'package:collection/collection.dart'; + +## Equality + +The equality library gives a way to specify equality of elements and +collections. + +Collections in Dart have no inherent equality. Two sets are not equal, even +if they contain exactly the same objects as elements. + +The equality library provides a way to say define such an equality. In this +case, for example, `const SetEquality(const IdentityEquality())` is an equality +that considers two sets equal exactly if they contain identical elements. + +The library provides ways to define equalities on `Iterable`s, `List`s, `Set`s, and +`Map`s, as well as combinations of these, such as: + + const MapEquality(const IdentityEquality(), const ListEquality()); + +This equality considers maps equal if they have identical keys, and the corresponding values are lists with equal (`operator==`) values. + +## Algorithms + +The algorithms library contains functions that operate on lists. + +It contains ways to shuffle a `List`, do binary search on a sorted `List`, and +some different sorting algorithms. + + +## Wrappers + +The wrappers library contains classes that "wrap" a collection. + +A wrapper class contains an object of the same type, and it forwards all +methods to the wrapped object. + +Wrapper classes can be used in various ways, for example to restrict the type +of an object to that of a supertype, or to change the behavior of selected +functions on an existing object. diff --git a/pkgs/collection/lib/algorithms.dart b/pkgs/collection/lib/algorithms.dart new file mode 100644 index 00000000..5ff0bb3b --- /dev/null +++ b/pkgs/collection/lib/algorithms.dart @@ -0,0 +1,301 @@ +// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +/** + * Operations on collections. + */ +library dart.pkg.collection.algorithms; + +import "dart:math" show Random; + +/** Version of [binarySearch] optimized for comparable keys */ +int _comparableBinarySearch(List list, Comparable key) { + int min = 0; + int max = list.length; + while (min < max) { + int mid = min + ((max - min) >> 1); + var element = list[mid]; + int comp = element.compareTo(key); + if (comp == 0) return mid; + if (comp < 0) { + min = mid + 1; + } else { + max = mid; + } + } + return -1; +} + +/** + * Returns a position of the [key] in [sortedList], if it is there. + * + * If the list isn't sorted according to the [compare] function, the result + * is unpredictable. + * + * If [compare] is omitted, it defaults to calling [Comparable.compareTo] on + * the objects. + * + * Returns -1 if [key] is not in the list by default. + */ +int binarySearch(List sortedList, var key, + { int compare(var a, var b) }) { + if (compare == null) { + return _comparableBinarySearch(sortedList, key); + } + int min = 0; + int max = sortedList.length; + while (min < max) { + int mid = min + ((max - min) >> 1); + var element = sortedList[mid]; + int comp = compare(element, key); + if (comp == 0) return mid; + if (comp < 0) { + min = mid + 1; + } else { + max = mid; + } + } + return -1; +} + + +/** + * Shuffles a list randomly. + * + * A sub-range of a list can be shuffled by providing [start] and [end]. + */ +void shuffle(List list, [int start = 0, int end = null]) { + Random random = new Random(); + if (end == null) end = list.length; + int length = end - start; + while (length > 1) { + int pos = random.nextInt(length); + length--; + var tmp1 = list[start + pos]; + list[start + pos] = list[start + length]; + list[start + length] = tmp1; + } +} + + +/** + * Reverses a list, or a part of a list, in-place. + */ +void reverse(List list, [int start = 0, int end = null]) { + if (end == null) end = list.length; + _reverse(list, start, end); +} + +// Internal helper function that assumes valid arguments. +void _reverse(List list, int start, int end) { + for (int i = start, j = end - 1; i < j; i++, j--) { + var tmp = list[i]; + list[i] = list[j]; + list[j] = tmp; + } +} + +/** + * Sort a list using insertion sort. + * + * Insertion sort is a simple sorting algorithm. For `n` elements it does on + * the order of `n * log(n)` comparisons but up to `n` squared moves. The + * sorting is performed in-place, without using extra memory. + * + * For short lists the many moves have less impact than the simple algorithm, + * and it is often the favored sorting algorithm for short lists. + * + * This insertion sort is stable: Equal elements end up in the same order + * as they started in. + */ +void insertionSort(List list, + { int compare(a, b), + int start: 0, + int end: null }) { + // If the same method could have both positional and named optional + // parameters, this should be (list, [start, end], {compare}). + if (end == null) end = list.length; + if (compare == null) compare = Comparable.compare; + _insertionSort(list, compare, start, end, start + 1); +} + +/** + * Internal helper function that assumes arguments correct. + * + * Assumes that the elements up to [sortedUntil] (not inclusive) are + * already sorted. The [sortedUntil] values should always be at least + * `start + 1`. + */ +void _insertionSort(List list, int compare(a, b), int start, int end, + int sortedUntil) { + for (int pos = sortedUntil; pos < end; pos++) { + int min = start; + int max = pos; + var element = list[pos]; + while (min < max) { + int mid = min + ((max - min) >> 1); + int comparison = compare(element, list[mid]); + if (comparison < 0) { + max = mid; + } else { + min = mid + 1; + } + } + list.setRange(min + 1, pos + 1, list, min); + list[min] = element; + } +} + +/** Limit below which merge sort defaults to insertion sort. */ +const int _MERGE_SORT_LIMIT = 32; + +/** + * Sorts a list, or a range of a list, using the merge sort algorithm. + * + * Merge-sorting works by splitting the job into two parts, sorting each + * recursively, and then merging the two sorted parts. + * + * This takes on the order of `n * log(n)` comparisons and moves to sort + * `n` elements, but requires extra space of about the same size as the list + * being sorted. + * + * This merge sort is stable: Equal elements end up in the same order + * as they started in. + */ +void mergeSort(List list, {int start: 0, int end: null, int compare(a, b)}) { + if (end == null) end = list.length; + if (compare == null) compare = Comparable.compare; + int length = end - start; + if (length < 2) return; + if (length < _MERGE_SORT_LIMIT) { + _insertionSort(list, compare, start, end, start + 1); + return; + } + // Special case the first split instead of directly calling + // _mergeSort, because the _mergeSort requires its target to + // be different from its source, and it requires extra space + // of the same size as the list to sort. + // This split allows us to have only half as much extra space, + // and it ends up in the original place. + int middle = start + ((end - start) >> 1); + int firstLength = middle - start; + int secondLength = end - middle; + // secondLength is always the same as firstLength, or one greater. + List scratchSpace = new List(secondLength); + _mergeSort(list, compare, middle, end, scratchSpace, 0); + int firstTarget = end - firstLength; + _mergeSort(list, compare, start, middle, list, firstTarget); + _merge(compare, + list, firstTarget, end, + scratchSpace, 0, secondLength, + list, start); +} + +/** + * Performs an insertion sort into a potentially different list than the + * one containing the original values. + * + * It will work in-place as well. + */ +void _movingInsertionSort(List list, int compare(a, b), int start, int end, + List target, int targetOffset) { + int length = end - start; + if (length == 0) return; + target[targetOffset] = list[start]; + for (int i = 1; i < length; i++) { + var element = list[start + i]; + int min = targetOffset; + int max = targetOffset + i; + while (min < max) { + int mid = min + ((max - min) >> 1); + if (compare(element, target[mid]) < 0) { + max = mid; + } else { + min = mid + 1; + } + } + target.setRange(min + 1, targetOffset + i + 1, + target, min); + target[min] = element; + } +} + +/** + * Sorts [list] from [start] to [end] into [target] at [targetOffset]. + * + * The `target` list must be able to contain the range from `start` to `end` + * after `targetOffset`. + * + * Allows target to be the same list as [list], as long as it's not + * overlapping the `start..end` range. + */ +void _mergeSort(List list, int compare(a, b), int start, int end, + List target, int targetOffset) { + int length = end - start; + if (length < _MERGE_SORT_LIMIT) { + _movingInsertionSort(list, compare, start, end, target, targetOffset); + return; + } + int middle = start + (length >> 1); + int firstLength = middle - start; + int secondLength = end - middle; + // Here secondLength >= firstLength (differs by at most one). + int targetMiddle = targetOffset + firstLength; + // Sort the second half into the end of the target area. + _mergeSort(list, compare, middle, end, + target, targetMiddle); + // Sort the first half into the end of the source area. + _mergeSort(list, compare, start, middle, + list, middle); + // Merge the two parts into the target area. + _merge(compare, + list, middle, middle + firstLength, + target, targetMiddle, targetMiddle + secondLength, + target, targetOffset); +} + +/** + * Merges two lists into a target list. + * + * One of the input lists may be positioned at the end of the target + * list. + * + * For equal object, elements from [firstList] are always preferred. + * This allows the merge to be stable if the first list contains elements + * that started out earlier than the ones in [secondList] + */ +void _merge(int compare(a, b), + List firstList, int firstStart, int firstEnd, + List secondList, int secondStart, int secondEnd, + List target, int targetOffset) { + // No empty lists reaches here. + assert(firstStart < firstEnd); + assert(secondStart < secondEnd); + int cursor1 = firstStart; + int cursor2 = secondStart; + var firstElement = firstList[cursor1++]; + var secondElement = secondList[cursor2++]; + while (true) { + if (compare(firstElement, secondElement) <= 0) { + target[targetOffset++] = firstElement; + if (cursor1 == firstEnd) break; // Flushing second list after loop. + firstElement = firstList[cursor1++]; + } else { + target[targetOffset++] = secondElement; + if (cursor2 != secondEnd) { + secondElement = secondList[cursor2++]; + continue; + } + // Second list empties first. Flushing first list here. + target[targetOffset++] = firstElement; + target.setRange(targetOffset, targetOffset + (firstEnd - cursor1), + firstList, cursor1); + return; + } + } + // First list empties first. Reached by break above. + target[targetOffset++] = secondElement; + target.setRange(targetOffset, targetOffset + (secondEnd - cursor2), + secondList, cursor2); +} diff --git a/pkgs/collection/lib/collection.dart b/pkgs/collection/lib/collection.dart new file mode 100644 index 00000000..a6f192d8 --- /dev/null +++ b/pkgs/collection/lib/collection.dart @@ -0,0 +1,22 @@ +// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +/** + * Exports all the individual parts of the collection-helper library. + * + * The sub-libraries of this package are: + * + * - `algorithms.dart`: Algorithms that work on lists (shuffle, binary search + * and various sorting algorithms). + * - `equality.dart`: Different notions of equality of collections. + * - `iterable_zip.dart`: Combining multiple iterables into one. + * - `wrappers.dart`: Wrapper classes that delegate to a collection object. + * Includes unmodifiable views of collections. + */ +library dart.pkg.collection; + +export "algorithms.dart"; +export "equality.dart"; +export "iterable_zip.dart"; +export "wrappers.dart"; diff --git a/pkgs/collection/lib/equality.dart b/pkgs/collection/lib/equality.dart new file mode 100644 index 00000000..c6fdafa0 --- /dev/null +++ b/pkgs/collection/lib/equality.dart @@ -0,0 +1,419 @@ +// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +/** + * Defines equality relations on collections. + */ +library dart.pkg.collection.equality; + +import "dart:collection"; + +const int _HASH_MASK = 0x7fffffff; + +/** + * A generic equality relation on objects. + */ +abstract class Equality { + const factory Equality() = DefaultEquality; + + /** + * Compare two elements for being equal. + * + * This should be a proper equality relation. + */ + bool equals(E e1, E e2); + + /** + * Get a hashcode of an element. + * + * The hashcode should be compatible with [equals], so that if + * `equals(a, b)` then `hash(a) == hash(b)`. + */ + int hash(E e); + + /** + * Test whether an object is a valid argument to [equals] and [hash]. + * + * Some implementations may be restricted to only work on specific types + * of objects. + */ + bool isValidKey(Object o); +} + +/** + * Equality of objects that compares only the natural equality of the objects. + * + * This equality uses the objects' own [Object.==] and [Object.hashCode] for + * the equality. + */ +class DefaultEquality implements Equality { + const DefaultEquality(); + bool equals(Object e1, Object e2) => e1 == e2; + int hash(Object e) => e.hashCode; + bool isValidKey(Object o) => true; +} + +/** + * Equality of objects that compares only the identity of the objects. + */ +class IdentityEquality implements Equality { + const IdentityEquality(); + bool equals(Object e1, Object e2) => identical(e1, e2); + int hash(Object e) => identityHashCode(e); + bool isValidKey(Object o) => true; +} + +/** + * Equality on iterables. + * + * Two iterables are equal if they have the same elements in the same order. + */ +class IterableEquality implements Equality> { + final Equality _elementEquality; + const IterableEquality([Equality elementEquality = + const DefaultEquality()]) + : _elementEquality = elementEquality; + + bool equals(Iterable elements1, Iterable elements2) { + if (identical(elements1, elements2)) return true; + if (elements1 == null || elements2 == null) return false; + Iterator it1 = elements1.iterator; + Iterator it2 = elements2.iterator; + while (true) { + bool hasNext = it1.moveNext(); + if (hasNext != it2.moveNext()) return false; + if (!hasNext) return true; + if (!_elementEquality.equals(it1.current, it2.current)) return false; + } + } + + int hash(Iterable elements) { + // Jenkins's one-at-a-time hash function. + int hash = 0; + for (E element in elements) { + int c = _elementEquality.hash(element); + hash = (hash + c) & _HASH_MASK; + hash = (hash + (hash << 10)) & _HASH_MASK; + hash ^= (hash >> 6); + } + hash = (hash + (hash << 3)) & _HASH_MASK; + hash ^= (hash >> 11); + hash = (hash + (hash << 15)) & _HASH_MASK; + return hash; + } + + bool isValidKey(Object o) => o is Iterable; +} + +/** + * Equality on lists. + * + * Two lists are equal if they have the same length and their elements + * at each index are equal. + * + * This is effectively the same as [IterableEquality] except that it + * accesses elements by index instead of through iteration. + */ +class ListEquality implements Equality> { + final Equality _elementEquality; + const ListEquality([Equality elementEquality = const DefaultEquality()]) + : _elementEquality = elementEquality; + + bool equals(List e1, List e2) { + if (identical(e1, e2)) return true; + if (e1 == null || e2 == null) return false; + int length = e1.length; + if (length != e2.length) return false; + for (int i = 0; i < length; i++) { + if (!_elementEquality.equals(e1[i], e2[i])) return false; + } + return true; + } + + int hash(List e) { + // Jenkins's one-at-a-time hash function. + // This code is almost identical to the one in IterableEquality, except + // that it uses indexing instead of iterating to get the elements. + int hash = 0; + for (int i = 0; i < e.length; i++) { + int c = _elementEquality.hash(e[i]); + hash = (hash + c) & _HASH_MASK; + hash = (hash + (hash << 10)) & _HASH_MASK; + hash ^= (hash >> 6); + } + hash = (hash + (hash << 3)) & _HASH_MASK; + hash ^= (hash >> 11); + hash = (hash + (hash << 15)) & _HASH_MASK; + return hash; + } + + bool isValidKey(Object o) => o is List; +} + +abstract class _UnorderedEquality> + implements Equality { + final Equality _elementEquality; + + const _UnorderedEquality(this._elementEquality); + + bool equals(T e1, T e2) { + if (identical(e1, e2)) return true; + if (e1 == null || e2 == null) return false; + HashMap counts = new HashMap( + equals: _elementEquality.equals, + hashCode: _elementEquality.hash, + isValidKey: _elementEquality.isValidKey); + int length = 0; + for (var e in e1) { + int count = counts[e]; + if (count == null) count = 0; + counts[e] = count + 1; + length++; + } + for (var e in e2) { + int count = counts[e]; + if (count == null || count == 0) return false; + counts[e] = count - 1; + length--; + } + return length == 0; + } + + int hash(T e) { + int hash = 0; + for (E element in e) { + int c = _elementEquality.hash(element); + hash = (hash + c) & _HASH_MASK; + } + hash = (hash + (hash << 3)) & _HASH_MASK; + hash ^= (hash >> 11); + hash = (hash + (hash << 15)) & _HASH_MASK; + return hash; + } +} + +/** + * Equality of the elements of two iterables without considering order. + * + * Two iterables are considered equal if they have the same number of elements, + * and the elements of one set can be paired with the elements + * of the other iterable, so that each pair are equal. + */ +class UnorderedIterableEquality extends _UnorderedEquality> { + const UnorderedIterableEquality( + [Equality elementEquality = const DefaultEquality()]) + : super(elementEquality); + + bool isValidKey(Object o) => o is Iterable; +} + +/** + * Equality of sets. + * + * Two sets are considered equal if they have the same number of elements, + * and the elements of one set can be paired with the elements + * of the other set, so that each pair are equal. + * + * This equality behaves the same as [UnorderedIterableEquality] except that + * it expects sets instead of iterables as arguments. + */ +class SetEquality extends _UnorderedEquality> { + const SetEquality( + [Equality elementEquality = const DefaultEquality()]) + : super(elementEquality); + + bool isValidKey(Object o) => o is Set; +} + +/** + * Internal class used by [MapEquality]. + * + * The class represents a map entry as a single object, + * using a combined hashCode and equality of the key and value. + */ +class _MapEntry { + final MapEquality equality; + final key; + final value; + _MapEntry(this.equality, this.key, this.value); + + int get hashCode => + (3 * equality._keyEquality.hash(key) + + 7 * equality._valueEquality.hash(value)) & _HASH_MASK; + + bool operator==(Object other) { + if (other is! _MapEntry) return false; + _MapEntry otherEntry = other; + return equality._keyEquality.equals(key, otherEntry.key) && + equality._valueEquality.equals(value, otherEntry.value); + + } +} + +/** + * Equality on maps. + * + * Two maps are equal if they have the same number of entries, and if the + * entries of the two maps are pairwise equal on both key and value. + */ +class MapEquality implements Equality> { + final Equality _keyEquality; + final Equality _valueEquality; + const MapEquality({ Equality keys : const DefaultEquality(), + Equality values : const DefaultEquality() }) + : _keyEquality = keys, _valueEquality = values; + + bool equals(Map e1, Map e2) { + if (identical(e1, e2)) return true; + if (e1 == null || e2 == null) return false; + int length = e1.length; + if (length != e2.length) return false; + Map<_MapEntry, int> equalElementCounts = new HashMap(); + for (K key in e1.keys) { + _MapEntry entry = new _MapEntry(this, key, e1[key]); + int count = equalElementCounts[entry]; + if (count == null) count = 0; + equalElementCounts[entry] = count + 1; + } + for (K key in e2.keys) { + _MapEntry entry = new _MapEntry(this, key, e2[key]); + int count = equalElementCounts[entry]; + if (count == null || count == 0) return false; + equalElementCounts[entry] = count - 1; + } + return true; + } + + int hash(Map map) { + int hash = 0; + for (K key in map.keys) { + int keyHash = _keyEquality.hash(key); + int valueHash = _valueEquality.hash(map[key]); + hash = (hash + 3 * keyHash + 7 * valueHash) & _HASH_MASK; + } + hash = (hash + (hash << 3)) & _HASH_MASK; + hash ^= (hash >> 11); + hash = (hash + (hash << 15)) & _HASH_MASK; + return hash; + } + + bool isValidKey(Object o) => o is Map; +} + +/** + * Combines several equalities into a single equality. + * + * Tries each equality in order, using [Equality.isValidKey], and returns + * the result of the first equality that applies to the argument or arguments. + * + * For `equals`, the first equality that matches the first argument is used, + * and if the second argument of `equals` is not valid for that equality, + * it returns false. + * + * Because the equalities are tried in order, they should generally work on + * disjoint types. Otherwise the multi-equality may give inconsistent results + * for `equals(e1, e2)` and `equals(e2, e1)`. This can happen if one equality + * considers only `e1` a valid key, and not `e2`, but an equality which is + * checked later, allows both. + */ +class MultiEquality implements Equality { + final Iterable> _equalities; + + const MultiEquality(Iterable> equalities) + : _equalities = equalities; + + bool equals(E e1, E e2) { + for (Equality eq in _equalities) { + if (eq.isValidKey(e1)) return eq.isValidKey(e2) && eq.equals(e1, e2); + } + return false; + } + + int hash(E e) { + for (Equality eq in _equalities) { + if (eq.isValidKey(e)) return eq.hash(e); + } + return -1; + } + + bool isValidKey(Object o) { + for (Equality eq in _equalities) { + if (eq.isValidKey(o)) return true; + } + return false; + } +} + +/** + * Deep equality on collections. + * + * Recognizes lists, sets, iterables and maps and compares their elements using + * deep equality as well. + * + * Non-iterable/map objects are compared using a configurable base equality. + * + * Works in one of two modes: ordered or unordered. + * + * In ordered mode, lists and iterables are required to have equal elements + * in the same order. In unordered mode, the order of elements in iterables + * and lists are not importan. + * + * A list is only equal to another list, likewise for sets and maps. All other + * iterables are compared as iterables only. + */ +class DeepCollectionEquality implements Equality { + final Equality _base; + final bool _unordered; + const DeepCollectionEquality([Equality base = const DefaultEquality()]) + : _base = base, _unordered = false; + + /** + * Creates a deep equality on collections where the order of lists and + * iterables are not considered important. That is, lists and iterables are + * treated as unordered iterables. + */ + const DeepCollectionEquality.unordered( + [Equality base = const DefaultEquality()]) + : _base = base, _unordered = true; + + bool equals(e1, e2) { + if (e1 is Set) { + if (e2 is! Set) return false; + return new SetEquality(this).equals(e1, e2); + } + if (e1 is Map) { + if (e2 is! Map) return false; + return new MapEquality(keys: this, values: this).equals(e1, e2); + } + if (!_unordered) { + if (e1 is List) { + if (e2 is! List) return false; + return new ListEquality(this).equals(e1, e2); + } + if (e1 is Iterable) { + if (e2 is! Iterable) return false; + return new IterableEquality(this).equals(e1, e2); + } + } else if (e1 is Iterable) { + if (e2 is! Iterable) return false; + if (e1 is List != e2 is List) return false; + return new UnorderedIterableEquality(this).equals(e1, e2); + } + return _base.equals(e1, e2); + } + + int hash(Object o) { + if (o is Set) return new SetEquality(this).hash(o); + if (o is Map) return new MapEquality(keys: this, values: this).hash(o); + if (!_unordered) { + if (o is List) return new ListEquality(this).hash(o); + if (o is Iterable) return new IterableEquality(this).hash(o); + } else if (o is Iterable) { + return new UnorderedIterableEquality(this).hash(o); + } + return _base.hash(o); + } + + bool isValidKey(Object o) => o is Iterable || o is Map || _base.isValidKey(o); +} diff --git a/pkgs/collection/lib/src/unmodifiable_wrappers.dart b/pkgs/collection/lib/src/unmodifiable_wrappers.dart new file mode 100644 index 00000000..022bbfe1 --- /dev/null +++ b/pkgs/collection/lib/src/unmodifiable_wrappers.dart @@ -0,0 +1,251 @@ +// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +/** + * Wrappers that prevent a List, Set, or Map object from being modified. + * + * The [Set] and [Map] wrappers allow reading from the wrapped collection, + * but prohibit writing. + * + * The [List] wrapper prevents changes to the length of the wrapped list, + * but allows changes to the contents. + */ +part of dart.pkg.collection.wrappers; + +/** + * A fixed-length list. + * + * A `NonGrowableListView` contains a [List] object and ensures that + * its length does not change. + * Methods that would change the length of the list, + * such as [add] and [remove], throw an [UnsupportedError]. + * All other methods work directly on the underlying list. + * + * This class _does_ allow changes to the contents of the wrapped list. + * You can, for example, [sort] the list. + * Permitted operations defer to the wrapped list. + */ +class NonGrowableListView extends DelegatingList + with NonGrowableListMixin { + NonGrowableListView(List listBase) : super(listBase); +} + +/** + * Mixin class that implements a throwing version of all list operations that + * change the List's length. + */ +abstract class NonGrowableListMixin implements List { + static void _throw() { + throw new UnsupportedError( + "Cannot change the length of a fixed-length list"); + } + + /** + * Throws an [UnsupportedError]; + * operations that change the length of the list are disallowed. + */ + void set length(int newLength) => _throw(); + + /** + * Throws an [UnsupportedError]; + * operations that change the length of the list are disallowed. + */ + bool add(E value) { + _throw(); + } + + /** + * Throws an [UnsupportedError]; + * operations that change the length of the list are disallowed. + */ + void addAll(Iterable iterable) => _throw(); + + /** + * Throws an [UnsupportedError]; + * operations that change the length of the list are disallowed. + */ + void insert(int index, E element) => _throw(); + + /** + * Throws an [UnsupportedError]; + * operations that change the length of the list are disallowed. + */ + void insertAll(int index, Iterable iterable) => _throw(); + + /** + * Throws an [UnsupportedError]; + * operations that change the length of the list are disallowed. + */ + bool remove(Object value) { _throw(); } + + /** + * Throws an [UnsupportedError]; + * operations that change the length of the list are disallowed. + */ + E removeAt(int index) { _throw(); } + + /** + * Throws an [UnsupportedError]; + * operations that change the length of the list are disallowed. + */ + E removeLast() { _throw(); } + + /** + * Throws an [UnsupportedError]; + * operations that change the length of the list are disallowed. + */ + void removeWhere(bool test(E element)) => _throw(); + + /** + * Throws an [UnsupportedError]; + * operations that change the length of the list are disallowed. + */ + void retainWhere(bool test(E element)) => _throw(); + + /** + * Throws an [UnsupportedError]; + * operations that change the length of the list are disallowed. + */ + void removeRange(int start, int end) => _throw(); + + /** + * Throws an [UnsupportedError]; + * operations that change the length of the list are disallowed. + */ + void replaceRange(int start, int end, Iterable iterable) => _throw(); + + /** + * Throws an [UnsupportedError]; + * operations that change the length of the list are disallowed. + */ + void clear() => _throw(); +} + +/** + * An unmodifiable set. + * + * An UnmodifiableSetView contains a [Set] object and ensures + * that it does not change. + * Methods that would change the set, + * such as [add] and [remove], throw an [UnsupportedError]. + * Permitted operations defer to the wrapped set. + */ +class UnmodifiableSetView extends DelegatingSet + with UnmodifiableSetMixin { + UnmodifiableSetView(Set setBase) : super(setBase); +} + +/** + * Mixin class that implements a throwing version of all set operations that + * change the Set. + */ +abstract class UnmodifiableSetMixin implements Set { + void _throw() { + throw new UnsupportedError("Cannot modify an unmodifiable Set"); + } + + /** + * Throws an [UnsupportedError]; + * operations that change the set are disallowed. + */ + bool add(E value) { + _throw(); + } + + /** + * Throws an [UnsupportedError]; + * operations that change the set are disallowed. + */ + void addAll(Iterable elements) => _throw(); + + /** + * Throws an [UnsupportedError]; + * operations that change the set are disallowed. + */ + bool remove(Object value) { _throw(); } + + /** + * Throws an [UnsupportedError]; + * operations that change the set are disallowed. + */ + void removeAll(Iterable elements) => _throw(); + + /** + * Throws an [UnsupportedError]; + * operations that change the set are disallowed. + */ + void retainAll(Iterable elements) => _throw(); + + /** + * Throws an [UnsupportedError]; + * operations that change the set are disallowed. + */ + void removeWhere(bool test(E element)) => _throw(); + + /** + * Throws an [UnsupportedError]; + * operations that change the set are disallowed. + */ + void retainWhere(bool test(E element)) => _throw(); + + /** + * Throws an [UnsupportedError]; + * operations that change the set are disallowed. + */ + void clear() => _throw(); +} + +/** + * An unmodifiable map. + * + * An UnmodifiableMapView contains a [Map] object and ensures + * that it does not change. + * Methods that would change the map, + * such as [addAll] and [remove], throw an [UnsupportedError]. + * Permitted operations defer to the wrapped map. + */ +class UnmodifiableMapView extends DelegatingMap + with UnmodifiableMapMixin { + UnmodifiableMapView(Map baseMap) : super(baseMap); +} + +/** + * Mixin class that implements a throwing version of all map operations that + * change the Map. + */ +abstract class UnmodifiableMapMixin implements Map { + static void _throw() { + throw new UnsupportedError("Cannot modify an unmodifiable Map"); + } + + /** + * Throws an [UnsupportedError]; + * operations that change the map are disallowed. + */ + void operator []=(K key, V value) => _throw(); + + /** + * Throws an [UnsupportedError]; + * operations that change the map are disallowed. + */ + V putIfAbsent(K key, V ifAbsent()) { _throw(); } + + /** + * Throws an [UnsupportedError]; + * operations that change the map are disallowed. + */ + void addAll(Map other) => _throw(); + + /** + * Throws an [UnsupportedError]; + * operations that change the map are disallowed. + */ + V remove(K key) { _throw(); } + + /** + * Throws an [UnsupportedError]; + * operations that change the map are disallowed. + */ + void clear() => _throw(); +} diff --git a/pkgs/collection/lib/wrappers.dart b/pkgs/collection/lib/wrappers.dart new file mode 100644 index 00000000..ec78f5c5 --- /dev/null +++ b/pkgs/collection/lib/wrappers.dart @@ -0,0 +1,334 @@ +// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +/** + * Delegating wrappers for [Iterable], [List], [Set], [Queue] and [Map]. + * + * Also adds unmodifiable views for `Set` and `Map`, and a fixed length + * view for `List`. The unmodifable list view from `dart:collection` is exported + * as well, just for completeness. + */ +library dart.pkg.collection.wrappers; + +import "dart:collection"; +import "dart:math" show Random; + +export "dart:collection" show UnmodifiableListView; + +part "src/unmodifiable_wrappers.dart"; + +/** + * Creates an [Iterable] that delegates all operations to a base iterable. + * + * This class can be used hide non-`Iterable` methods of an iterable object, + * or it can be extended to add extra functionality on top of an existing + * iterable object. + */ +class DelegatingIterable implements Iterable { + Iterable _base; + + /** + * Create a wrapper that forwards operations to [base]. + */ + DelegatingIterable(Iterable base) : _base = base; + + bool any(bool test(E element)) => _base.any(test); + + bool contains(Object element) => _base.contains(element); + + E elementAt(int index) => _base.elementAt(index); + + bool every(bool test(E element)) => _base.every(test); + + Iterable expand(Iterable f(E element)) => _base.expand(f); + + E get first => _base.first; + + E firstWhere(bool test(E element), {E orElse()}) => + _base.firstWhere(test, orElse: orElse); + + fold(initialValue, combine(previousValue, E element)) => + _base.fold(initialValue, combine); + + void forEach(void f(E element)) => _base.forEach(f); + + bool get isEmpty => _base.isEmpty; + + bool get isNotEmpty => _base.isNotEmpty; + + Iterator get iterator => _base.iterator; + + String join([String separator = ""]) => _base.join(separator); + + E get last => _base.last; + + E lastWhere(bool test(E element), {E orElse()}) => + _base.lastWhere(test, orElse: orElse); + + int get length => _base.length; + + Iterable map(f(E element)) => _base.map(f); + + E reduce(E combine(E value, E element)) => _base.reduce(combine); + + E get single => _base.single; + + E singleWhere(bool test(E element)) => _base.singleWhere(test); + + Iterable skip(int n) => _base.skip(n); + + Iterable skipWhile(bool test(E value)) => _base.skipWhile(test); + + Iterable take(int n) => _base.take(n); + + Iterable takeWhile(bool test(E value)) => _base.takeWhile(test); + + List toList({bool growable: true}) => _base.toList(growable: growable); + + Set toSet() => _base.toSet(); + + Iterable where(bool test(E element)) => _base.where(test); +} + + +/** + * Creates a [List] that delegates all operations to a base list. + * + * This class can be used hide non-`List` methods of a list object, + * or it can be extended to add extra functionality on top of an existing + * list object. + */ +class DelegatingList extends DelegatingIterable implements List { + DelegatingList(List base) : super(base); + + List get _listBase => _base; + + E operator [](int index) => _listBase[index]; + + void operator []=(int index, E value) { + _listBase[index] = value; + } + + void add(E value) { + _listBase.add(value); + } + + void addAll(Iterable iterable) { + _listBase.addAll(iterable); + } + + Map asMap() => _listBase.asMap(); + + void clear() { + _listBase.clear(); + } + + void fillRange(int start, int end, [E fillValue]) { + _listBase.fillRange(start, end, fillValue); + } + + Iterable getRange(int start, int end) => _listBase.getRange(start, end); + + int indexOf(E element, [int start = 0]) => _listBase.indexOf(element, start); + + void insert(int index, E element) { + _listBase.insert(index, element); + } + + void insertAll(int index, Iterable iterable) { + _listBase.insertAll(index, iterable); + } + + int lastIndexOf(E element, [int start]) => + _listBase.lastIndexOf(element, start); + + void set length(int newLength) { + _listBase.length = newLength; + } + + bool remove(Object value) => _listBase.remove(value); + + E removeAt(int index) => _listBase.removeAt(index); + + E removeLast() => _listBase.removeLast(); + + void removeRange(int start, int end) { + _listBase.removeRange(start, end); + } + + void removeWhere(bool test(E element)) { + _listBase.removeWhere(test); + } + + void replaceRange(int start, int end, Iterable iterable) { + _listBase.replaceRange(start, end, iterable); + } + + void retainWhere(bool test(E element)) { + _listBase.retainWhere(test); + } + + Iterable get reversed => _listBase.reversed; + + void setAll(int index, Iterable iterable) { + _listBase.setAll(index, iterable); + } + + void setRange(int start, int end, Iterable iterable, [int skipCount = 0]) { + _listBase.setRange(start, end, iterable, skipCount); + } + + void shuffle([Random random]) { + _listBase.shuffle(random); + } + + void sort([int compare(E a, E b)]) { + _listBase.sort(compare); + } + + List sublist(int start, [int end]) => _listBase.sublist(start, end); +} + + +/** + * Creates a [Set] that delegates all operations to a base set. + * + * This class can be used hide non-`Set` methods of a set object, + * or it can be extended to add extra functionality on top of an existing + * set object. + */ +class DelegatingSet extends DelegatingIterable implements Set { + DelegatingSet(Set base) : super(base); + + Set get _setBase => _base; + + bool add(E value) => _setBase.add(value); + + void addAll(Iterable elements) { + _setBase.addAll(elements); + } + + void clear() { + _setBase.clear(); + } + + bool containsAll(Iterable other) => _setBase.containsAll(other); + + Set difference(Set other) => _setBase.difference(other); + + Set intersection(Set other) => _setBase.intersection(other); + + E lookup(E element) => _setBase.lookup(element); + + bool remove(Object value) => _setBase.remove(value); + + void removeAll(Iterable elements) { + _setBase.removeAll(elements); + } + + void removeWhere(bool test(E element)) { + _setBase.removeWhere(test); + } + + void retainAll(Iterable elements) { + _setBase.retainAll(elements); + } + + void retainWhere(bool test(E element)) { + _setBase.retainWhere(test); + } + + Set union(Set other) => _setBase.union(other); +} + +/** + * Creates a [Queue] that delegates all operations to a base queue. + * + * This class can be used hide non-`Queue` methods of a queue object, + * or it can be extended to add extra functionality on top of an existing + * queue object. + */ +class DelegatingQueue extends DelegatingIterable implements Queue { + DelegatingQueue(Queue queue) : super(queue); + + Queue get _baseQueue => _base; + + void add(E value) { + _baseQueue.add(value); + } + + void addAll(Iterable iterable) { + _baseQueue.addAll(iterable); + } + + void addFirst(E value) { + _baseQueue.addFirst(value); + } + + void addLast(E value) { + _baseQueue.addLast(value); + } + + void clear() { + _baseQueue.clear(); + } + + bool remove(Object object) => _baseQueue.remove(object); + + void removeWhere(bool test(E element)) { _baseQueue.removeWhere(test); } + + void retainWhere(bool test(E element)) { _baseQueue.retainWhere(test); } + + E removeFirst() => _baseQueue.removeFirst(); + + E removeLast() => _baseQueue.removeLast(); +} + +/** + * Creates a [Map] that delegates all operations to a base map. + * + * This class can be used hide non-`Map` methods of an object that extends + * `Map`, or it can be extended to add extra functionality on top of an existing + * map object. + */ +class DelegatingMap implements Map { + Map _base; + DelegatingMap(Map base) : _base = base; + + V operator [](Object key) => _base[key]; + + void operator []=(K key, V value) { + _base[key] = value; + } + + void addAll(Map other) { + _base.addAll(other); + } + + void clear() { + _base.clear(); + } + + bool containsKey(Object key) => _base.containsKey(key); + + bool containsValue(Object value) => _base.containsValue(value); + + void forEach(void f(K key, V value)) { + _base.forEach(f); + } + + bool get isEmpty => _base.isEmpty; + + bool get isNotEmpty => _base.isNotEmpty; + + Iterable get keys => _base.keys; + + int get length => _base.length; + + V putIfAbsent(K key, V ifAbsent()) => _base.putIfAbsent(key, ifAbsent); + + V remove(Object key) => _base.remove(key); + + Iterable get values => _base.values; +} diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml new file mode 100644 index 00000000..cdcbe889 --- /dev/null +++ b/pkgs/collection/pubspec.yaml @@ -0,0 +1,9 @@ +name: collection +version: 0.9.0 +author: '"Dart Team "' +description: Collections and utilities functions and classes related to collections. +homepage: http://www.dartlang.org +dev_dependencies: + unittest: ">=0.9.0 <0.10.0" +environment: + sdk: ">=1.0.0 <2.0.0" diff --git a/pkgs/collection/test/algorithms_test.dart b/pkgs/collection/test/algorithms_test.dart new file mode 100644 index 00000000..933e268e --- /dev/null +++ b/pkgs/collection/test/algorithms_test.dart @@ -0,0 +1,271 @@ +// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +/// Tests algorithm utilities. + +import "package:collection/collection.dart"; +import "package:unittest/unittest.dart"; +import 'dart:math'; + +void main() { + void testShuffle(List list) { + List copy = list.toList(); + shuffle(list); + expect(new UnorderedIterableEquality().equals(list, copy), isTrue); + } + + test("Shuffle 0", () { + testShuffle([]); + }); + test("Shuffle 1", () { + testShuffle([1]); + }); + test("Shuffle 3", () { + testShuffle([1, 2, 3]); + }); + test("Shuffle 10", () { + testShuffle([1, 2, 3, 4, 5, 1, 3, 5, 7, 9]); + }); + test("Shuffle shuffles", () { + List l = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]; + List c = l.toList(); + int count = 0; + do { + shuffle(l); + if (!const ListEquality().equals(c, l)) return; + // Odds of not changing the order should be one in ~ 16! ~= 2e+13. + // Repeat this 10 times, and the odds of accidentally shuffling to the + // same result every time is disappearingly tiny. + count++; + // If this happens even once, it's ok to report it. + print("Failed shuffle $count times"); + if (count == 10) fail("Shuffle didn't change order."); + } while (true); + }); + test("Shuffle sublist", (){ + List l = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]; + List c = l.toList(); + shuffle(l, 4, 12); + expect(const IterableEquality().equals(l.getRange(0, 4), + c.getRange(0, 4)), isTrue); + expect(const IterableEquality().equals(l.getRange(12, 16), + c.getRange(12, 16)), isTrue); + expect(const UnorderedIterableEquality().equals(l.getRange(4, 12), + c.getRange(4, 12)), + isTrue); + + }); + + test("binsearch0", () { + expect(binarySearch([], 2), equals(-1)); + }); + + test("binsearch1", () { + expect(binarySearch([5], 2), equals(-1)); + expect(binarySearch([5], 5), equals(0)); + expect(binarySearch([5], 7), equals(-1)); + }); + + test("binsearch3", () { + expect(binarySearch([0, 5, 10], -1), equals(-1)); + expect(binarySearch([0, 5, 10], 0), equals(0)); + expect(binarySearch([0, 5, 10], 2), equals(-1)); + expect(binarySearch([0, 5, 10], 5), equals(1)); + expect(binarySearch([0, 5, 10], 7), equals(-1)); + expect(binarySearch([0, 5, 10], 10), equals(2)); + expect(binarySearch([0, 5, 10], 12), equals(-1)); + }); + + test("binsearchCompare0", () { + expect(binarySearch([], new C(2), compare: compareC), equals(-1)); + }); + + test("binsearchCompare1", () { + var l1 = [new C(5)]; + expect(binarySearch(l1, new C(2), compare: compareC), equals(-1)); + expect(binarySearch(l1, new C(5), compare: compareC), equals(0)); + expect(binarySearch(l1, new C(7), compare: compareC), equals(-1)); + }); + + test("binsearchCompare3", () { + var l3 = [new C(0), new C(5), new C(10)]; + expect(binarySearch(l3, new C(-1), compare: compareC), equals(-1)); + expect(binarySearch(l3, new C(0), compare: compareC), equals(0)); + expect(binarySearch(l3, new C(2), compare: compareC), equals(-1)); + expect(binarySearch(l3, new C(5), compare: compareC), equals(1)); + expect(binarySearch(l3, new C(7), compare: compareC), equals(-1)); + expect(binarySearch(l3, new C(10), compare: compareC), equals(2)); + expect(binarySearch(l3, new C(12), compare: compareC), equals(-1)); + }); + + test("insertionSortRandom", () { + Random random = new Random(); + for (int i = 0; i < 25; i++) { + List list = new List(i); + for (int j = 0; j < i; j++) { + list[j] = random.nextInt(25); // Expect some equal elements. + } + insertionSort(list); + for (int j = 1; j < i; j++) { + expect(list[j - 1], lessThanOrEqualTo(list[j])); + } + } + }); + + test("insertionSortSubRanges", () { + List l = [6, 5, 4, 3, 2, 1]; + insertionSort(l, start: 2, end: 4); + expect(l, equals([6, 5, 3, 4, 2, 1])); + insertionSort(l, start: 1, end: 1); + expect(l, equals([6, 5, 3, 4, 2, 1])); + insertionSort(l, start: 4, end: 6); + expect(l, equals([6, 5, 3, 4, 1, 2])); + insertionSort(l, start: 0, end: 2); + expect(l, equals([5, 6, 3, 4, 1, 2])); + insertionSort(l, start: 0, end: 6); + expect(l, equals([1, 2, 3, 4, 5, 6])); + }); + + test("insertionSortSpecialCases", () { + List l = [6, 6, 6, 6, 6, 6]; + insertionSort(l); + expect(l, equals([6, 6, 6, 6, 6, 6])); + + l = [6, 6, 3, 3, 0, 0]; + insertionSort(l); + expect(l, equals([0, 0, 3, 3, 6, 6])); + }); + + test("MergeSortRandom", () { + Random random = new Random(); + for (int i = 0; i < 250; i += 1) { + List list = new List(i); + for (int j = 0; j < i; j++) { + list[j] = random.nextInt(i); // Expect some equal elements. + } + mergeSort(list); + for (int j = 1; j < i; j++) { + expect(list[j - 1], lessThanOrEqualTo(list[j])); + } + } + }); + + test("MergeSortPreservesOrder", () { + Random random = new Random(); + // Small case where only insertion call is called, + // larger case where the internal moving insertion sort is used + // larger cases with multiple splittings, numbers just around a power of 2. + for (int size in [8, 50, 511, 512, 513]) { + List list = new List(size); + // Class OC compares using id. + // With size elements with id's in the range 0..size/4, a number of + // collisions are guaranteed. These should be sorted so that the "order" + // part of the objects are still in order. + for (int i = 0; i < size; i++) { + list[i] = new OC(random.nextInt(size >> 2), i); + } + mergeSort(list); + OC prev = list[0]; + for (int i = 1; i < size; i++) { + OC next = list[i]; + expect(prev.id, lessThanOrEqualTo(next.id)); + if (next.id == prev.id) { + expect(prev.order, lessThanOrEqualTo(next.order)); + } + prev = next; + } + // Reverse compare on part of list. + List copy = list.toList(); + int min = size >> 2; + int max = size - min; + mergeSort(list, start: min, end: max, compare: (a, b) => b.compareTo(a)); + prev = list[min]; + for (int i = min + 1; i < max; i++) { + OC next = list[i]; + expect(prev.id, greaterThanOrEqualTo(next.id)); + if (next.id == prev.id) { + expect(prev.order, lessThanOrEqualTo(next.order)); + } + prev = next; + } + // Equals on OC objects is identity, so this means the parts before min, + // and the parts after max, didn't change at all. + expect(list.sublist(0, min), equals(copy.sublist(0, min))); + expect(list.sublist(max), equals(copy.sublist(max))); + } + }); + + test("MergeSortSpecialCases", () { + for (int size in [511, 512, 513]) { + // All equal. + List list = new List(size); + for (int i = 0; i < size; i++) { + list[i] = new OC(0, i); + } + mergeSort(list); + for (int i = 0; i < size; i++) { + expect(list[i].order, equals(i)); + } + // All but one equal, first. + list[0] = new OC(1, 0); + for (int i = 1; i < size; i++) { + list[i] = new OC(0, i); + } + mergeSort(list); + for (int i = 0; i < size - 1; i++) { + expect(list[i].order, equals(i + 1)); + } + expect(list[size - 1].order, equals(0)); + + // All but one equal, last. + for (int i = 0; i < size - 1; i++) { + list[i] = new OC(0, i); + } + list[size - 1] = new OC(-1, size - 1); + mergeSort(list); + expect(list[0].order, equals(size - 1)); + for (int i = 1; i < size; i++) { + expect(list[i].order, equals(i - 1)); + } + + // Reversed. + for (int i = 0; i < size; i++) { + list[i] = new OC(size - 1 - i, i); + } + mergeSort(list); + for (int i = 0; i < size; i++) { + expect(list[i].id, equals(i)); + expect(list[i].order, equals(size - 1 - i)); + } + } + }); + + test("Reverse", () { + List l = [6, 5, 4, 3, 2, 1]; + reverse(l, 2, 4); + expect(l, equals([6, 5, 3, 4, 2, 1])); + reverse(l, 1, 1); + expect(l, equals([6, 5, 3, 4, 2, 1])); + reverse(l, 4, 6); + expect(l, equals([6, 5, 3, 4, 1, 2])); + reverse(l, 0, 2); + expect(l, equals([5, 6, 3, 4, 1, 2])); + reverse(l, 0, 6); + expect(l, equals([2, 1, 4, 3, 6, 5])); + }); +} + +class C { + final int id; + C(this.id); +} +int compareC(C one, C other) => one.id - other.id; + +class OC implements Comparable { + final int id; + final int order; + OC(this.id, this.order); + int compareTo(OC other) => id - other.id; + String toString() => "OC[$id,$order]"; +} diff --git a/pkgs/collection/test/equality_test.dart b/pkgs/collection/test/equality_test.dart new file mode 100644 index 00000000..edabfd59 --- /dev/null +++ b/pkgs/collection/test/equality_test.dart @@ -0,0 +1,164 @@ +// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +// Tests equality utilities. + +import "dart:collection"; +import "package:collection/collection.dart"; +import "package:unittest/unittest.dart"; + +main() { + test("IterableEquality - List", () { + var l1 = [1, 2, 3, 4, 5]; + var l2 = [1.0, 2.0, 3.0, 4.0, 5.0]; + expect(const IterableEquality().equals(l1, l2), isTrue); + Equality iterId = const IterableEquality(const IdentityEquality()); + expect(iterId.equals(l1, l2), isFalse); /// 01: ok + }); + + test("IterableEquality - LinkedSet", () { + var l1 = new LinkedHashSet.from([1, 2, 3, 4, 5]); + var l2 = new LinkedHashSet.from([1.0, 2.0, 3.0, 4.0, 5.0]); + expect(const IterableEquality().equals(l1, l2), isTrue); + Equality iterId = const IterableEquality(const IdentityEquality()); + expect(iterId.equals(l1, l2), isFalse); /// 02: ok + }); + + test("ListEquality", () { + var l1 = [1, 2, 3, 4, 5]; + var l2 = [1.0, 2.0, 3.0, 4.0, 5.0]; + expect(const ListEquality().equals(l1, l2), + isTrue); + Equality listId = const ListEquality(const IdentityEquality()); + expect(listId.equals(l1, l2), isFalse); /// 03: ok + }); + + test("ListInequality length", () { + var l1 = [1, 2, 3, 4, 5]; + var l2 = [1.0, 2.0, 3.0, 4.0, 5.0, 6.0]; + expect(const ListEquality().equals(l1, l2), + isFalse); + expect(const ListEquality(const IdentityEquality()).equals(l1, l2), + isFalse); + }); + + test("ListInequality value", () { + var l1 = [1, 2, 3, 4, 5]; + var l2 = [1.0, 2.0, 3.0, 4.0, 6.0]; + expect(const ListEquality().equals(l1, l2), + isFalse); + expect(const ListEquality(const IdentityEquality()).equals(l1, l2), + isFalse); + }); + + test("UnorderedIterableEquality", () { + var l1 = [1, 2, 3, 4, 5]; + var l2 = [1.0, 3.0, 5.0, 4.0, 2.0]; + expect(const UnorderedIterableEquality().equals(l1, l2), + isTrue); + Equality uniterId = + const UnorderedIterableEquality(const IdentityEquality()); + expect(uniterId.equals(l1, l2), isFalse); /// 04: ok + }); + + test("UnorderedIterableInequality length", () { + var l1 = [1, 2, 3, 4, 5]; + var l2 = [1.0, 3.0, 5.0, 4.0, 2.0, 1.0]; + expect(const UnorderedIterableEquality().equals(l1, l2), + isFalse); + expect(const UnorderedIterableEquality(const IdentityEquality()) + .equals(l1, l2), + isFalse); + }); + + test("UnorderedIterableInequality values", () { + var l1 = [1, 2, 3, 4, 5]; + var l2 = [1.0, 3.0, 5.0, 4.0, 6.0]; + expect(const UnorderedIterableEquality().equals(l1, l2), + isFalse); + expect(const UnorderedIterableEquality(const IdentityEquality()) + .equals(l1, l2), + isFalse); + }); + + test("SetEquality", () { + var l1 = new HashSet.from([1, 2, 3, 4, 5]); + var l2 = new LinkedHashSet.from([1.0, 3.0, 5.0, 4.0, 2.0]); + expect(const SetEquality().equals(l1, l2), + isTrue); + Equality setId = const SetEquality(const IdentityEquality()); + expect(setId.equals(l1, l2), isFalse); /// 05: ok + }); + + test("SetInequality length", () { + var l1 = new HashSet.from([1, 2, 3, 4, 5]); + var l2 = new LinkedHashSet.from([1.0, 3.0, 5.0, 4.0, 2.0, 6.0]); + expect(const SetEquality().equals(l1, l2), + isFalse); + expect(const SetEquality(const IdentityEquality()).equals(l1, l2), + isFalse); + }); + + test("SetInequality value", () { + var l1 = new HashSet.from([1, 2, 3, 4, 5]); + var l2 = new LinkedHashSet.from([1.0, 3.0, 5.0, 4.0, 6.0]); + expect(const SetEquality().equals(l1, l2), + isFalse); + expect(const SetEquality(const IdentityEquality()).equals(l1, l2), + isFalse); + }); + + var map1a = {"x": [1, 2, 3], "y": [true, false, null]}; + var map1b = {"x": [4.0, 5.0, 6.0], "y": [false, true, null]}; + var map2a = {"x": [3.0, 2.0, 1.0], "y": [false, true, null]}; + var map2b = {"x": [6, 5, 4], "y": [null, false, true]}; + var l1 = [map1a, map1b]; + var l2 = [map2a, map2b]; + var s1 = new Set.from(l1); + var s2 = new Set.from([map2b, map2a]); + + test("RecursiveEquality", () { + const unordered = const UnorderedIterableEquality(); + expect(unordered.equals(map1a["x"], map2a["x"]), + isTrue); + expect(unordered.equals(map1a["y"], map2a["y"]), + isTrue); + expect(unordered.equals(map1b["x"], map2b["x"]), + isTrue); + expect(unordered.equals(map1b["y"], map2b["y"]), + isTrue); + const mapval = const MapEquality(values: unordered); + expect( + mapval.equals(map1a, map2a), + isTrue); + expect(mapval.equals(map1b, map2b), + isTrue); + const listmapval = const ListEquality(mapval); + expect(listmapval.equals(l1, l2), + isTrue); + const setmapval = const SetEquality(mapval); + expect(setmapval.equals(s1, s2), + isTrue); + }); + + test("DeepEquality", () { + var colleq = const DeepCollectionEquality.unordered(); + expect(colleq.equals(map1a["x"], map2a["x"]), + isTrue); + expect(colleq.equals(map1a["y"], map2a["y"]), + isTrue); + expect(colleq.equals(map1b["x"], map2b["x"]), + isTrue); + expect(colleq.equals(map1b["y"], map2b["y"]), + isTrue); + expect(colleq.equals(map1a, map2a), + isTrue); + expect(colleq.equals(map1b, map2b), + isTrue); + expect(colleq.equals(l1, l2), + isTrue); + expect(colleq.equals(s1, s2), + isTrue); + }); +} diff --git a/pkgs/collection/test/unmodifiable_collection_test.dart b/pkgs/collection/test/unmodifiable_collection_test.dart new file mode 100644 index 00000000..d810b75f --- /dev/null +++ b/pkgs/collection/test/unmodifiable_collection_test.dart @@ -0,0 +1,629 @@ +// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import "package:collection/wrappers.dart"; +import "package:unittest/unittest.dart"; + +// Test unmodifiable collection views. +// The collections should pass through the operations that are allowed, +// an throw on the ones that aren't without affecting the original. + +main() { + List list = []; + testUnmodifiableList(list, new UnmodifiableListView(list), "empty"); + list = [42]; + testUnmodifiableList(list, new UnmodifiableListView(list), "single-42"); + list = [7]; + testUnmodifiableList(list, new UnmodifiableListView(list), "single!42"); + list = [1, 42, 10]; + testUnmodifiableList(list, new UnmodifiableListView(list), "three-42"); + list = [1, 7, 10]; + testUnmodifiableList(list, new UnmodifiableListView(list), "three!42"); + + list = []; + testNonGrowableList(list, new NonGrowableListView(list), "empty"); + list = [42]; + testNonGrowableList(list, new NonGrowableListView(list), "single-42"); + list = [7]; + testNonGrowableList(list, new NonGrowableListView(list), "single!42"); + list = [1, 42, 10]; + testNonGrowableList(list, new NonGrowableListView(list), "three-42"); + list = [1, 7, 10]; + testNonGrowableList(list, new NonGrowableListView(list), "three!42"); + + Set aSet = new Set(); + testUnmodifiableSet(aSet, new UnmodifiableSetView(aSet), "empty"); + aSet = new Set.from([42]); + testUnmodifiableSet(aSet, new UnmodifiableSetView(aSet), "single-42"); + aSet = new Set.from([7]); + testUnmodifiableSet(aSet, new UnmodifiableSetView(aSet), "single!42"); + aSet = new Set.from([1, 42, 10]); + testUnmodifiableSet(aSet, new UnmodifiableSetView(aSet), "three-42"); + aSet = new Set.from([1, 7, 10]); + testUnmodifiableSet(aSet, new UnmodifiableSetView(aSet), "three!42"); + + Map map = new Map(); + testUnmodifiableMap(map, new UnmodifiableMapView(map), "empty"); + map = new Map()..[0] = 2; + testUnmodifiableMap(map, new UnmodifiableMapView(map), "single-0"); + map = new Map()..[3] = 2; + testUnmodifiableMap(map, new UnmodifiableMapView(map), "single!0"); + map = new Map()..[0] = 2 + ..[1] = 1 + ..[2] = 0; + testUnmodifiableMap(map, new UnmodifiableMapView(map), "three-0"); + map = new Map()..[3] = 2 + ..[1] = 1 + ..[2] = 3; + testUnmodifiableMap(map, new UnmodifiableMapView(map), "three!0"); +} + +void testUnmodifiableList(List original, List wrapped, String name) { + name = "unmodifiable-list-$name"; + testIterable(original, wrapped, name); + testReadList(original, wrapped, name); + testNoWriteList(original, wrapped, name); + testNoChangeLengthList(original, wrapped, name); +} + +void testNonGrowableList(List original, List wrapped, String name) { + name = "nongrowable-list-$name"; + testIterable(original, wrapped, name); + testReadList(original, wrapped, name); + testWriteList(original, wrapped, name); + testNoChangeLengthList(original, wrapped, name); +} + +void testUnmodifiableSet(Set original, Set wrapped, String name) { + name = "unmodifiable-set-$name"; + testIterable(original, wrapped, name); + testReadSet(original, wrapped, name); + testNoChangeSet(original, wrapped, name); +} + +void testUnmodifiableMap(Map original, Map wrapped, name) { + name = "unmodifiable-map-$name"; + testReadMap(original, wrapped, name); + testNoChangeMap(original, wrapped, name); +} + +void testIterable(Iterable original, Iterable wrapped, String name) { + test("$name - any", () { + expect(wrapped.any((x) => true), equals(original.any((x) => true))); + expect(wrapped.any((x) => false), equals(original.any((x) => false))); + }); + + test("$name - contains", () { + expect(wrapped.contains(0), equals(original.contains(0))); + }); + + test("$name - elementAt", () { + if (original.isEmpty) { + expect(() => wrapped.elementAt(0), throws); + } else { + expect(wrapped.elementAt(0), equals(original.elementAt(0))); + } + }); + + test("$name - every", () { + expect(wrapped.every((x) => true), equals(original.every((x) => true))); + expect(wrapped.every((x) => false), equals(original.every((x) => false))); + }); + + test("$name - expand", () { + expect(wrapped.expand((x) => [x, x]), + equals(original.expand((x) => [x, x]))); + }); + + test("$name - first", () { + if (original.isEmpty) { + expect(() => wrapped.first, throws); + } else { + expect(wrapped.first, equals(original.first)); + } + }); + + test("$name - firstWhere", () { + if (original.isEmpty) { + expect(() => wrapped.firstWhere((_) => true), throws); + } else { + expect(wrapped.firstWhere((_) => true), + equals(original.firstWhere((_) => true))); + } + expect(() => wrapped.firstWhere((_) => false), throws); + }); + + test("$name - fold", () { + expect(wrapped.fold(0, (x, y) => x + y), + equals(original.fold(0, (x, y) => x + y))); + }); + + test("$name - forEach", () { + int wrapCtr = 0; + int origCtr = 0; + wrapped.forEach((x) { wrapCtr += x; }); + original.forEach((x) { origCtr += x; }); + expect(wrapCtr, equals(origCtr)); + }); + + test("$name - isEmpty", () { + expect(wrapped.isEmpty, equals(original.isEmpty)); + }); + + test("$name - isNotEmpty", () { + expect(wrapped.isNotEmpty, equals(original.isNotEmpty)); + }); + + test("$name - iterator", () { + Iterator wrapIter = wrapped.iterator; + Iterator origIter = original.iterator; + while (origIter.moveNext()) { + expect(wrapIter.moveNext(), equals(true)); + expect(wrapIter.current, equals(origIter.current)); + } + expect(wrapIter.moveNext(), equals(false)); + }); + + test("$name - join", () { + expect(wrapped.join(""), equals(original.join(""))); + expect(wrapped.join("-"), equals(original.join("-"))); + }); + + test("$name - last", () { + if (original.isEmpty) { + expect(() => wrapped.last, throws); + } else { + expect(wrapped.last, equals(original.last)); + } + }); + + test("$name - lastWhere", () { + if (original.isEmpty) { + expect(() => wrapped.lastWhere((_) => true), throws); + } else { + expect(wrapped.lastWhere((_) => true), + equals(original.lastWhere((_) => true))); + } + expect(() => wrapped.lastWhere((_) => false), throws); + }); + + test("$name - length", () { + expect(wrapped.length, equals(original.length)); + }); + + test("$name - map", () { + expect(wrapped.map((x) => "[$x]"), + equals(original.map((x) => "[$x]"))); + }); + + test("$name - reduce", () { + if (original.isEmpty) { + expect(() => wrapped.reduce((x, y) => x + y), throws); + } else { + expect(wrapped.reduce((x, y) => x + y), + equals(original.reduce((x, y) => x + y))); + } + }); + + test("$name - single", () { + if (original.length != 1) { + expect(() => wrapped.single, throws); + } else { + expect(wrapped.single, equals(original.single)); + } + }); + + test("$name - singleWhere", () { + if (original.length != 1) { + expect(() => wrapped.singleWhere((_) => true), throws); + } else { + expect(wrapped.singleWhere((_) => true), + equals(original.singleWhere((_) => true))); + } + expect(() => wrapped.singleWhere((_) => false), throws); + }); + + test("$name - skip", () { + expect(wrapped.skip(0), orderedEquals(original.skip(0))); + expect(wrapped.skip(1), orderedEquals(original.skip(1))); + expect(wrapped.skip(5), orderedEquals(original.skip(5))); + }); + + test("$name - skipWhile", () { + expect(wrapped.skipWhile((x) => true), + orderedEquals(original.skipWhile((x) => true))); + expect(wrapped.skipWhile((x) => false), + orderedEquals(original.skipWhile((x) => false))); + expect(wrapped.skipWhile((x) => x != 42), + orderedEquals(original.skipWhile((x) => x != 42))); + }); + + test("$name - take", () { + expect(wrapped.take(0), orderedEquals(original.take(0))); + expect(wrapped.take(1), orderedEquals(original.take(1))); + expect(wrapped.take(5), orderedEquals(original.take(5))); + }); + + test("$name - takeWhile", () { + expect(wrapped.takeWhile((x) => true), + orderedEquals(original.takeWhile((x) => true))); + expect(wrapped.takeWhile((x) => false), + orderedEquals(original.takeWhile((x) => false))); + expect(wrapped.takeWhile((x) => x != 42), + orderedEquals(original.takeWhile((x) => x != 42))); + }); + + test("$name - toList", () { + expect(wrapped.toList(), orderedEquals(original.toList())); + expect(wrapped.toList(growable: false), + orderedEquals(original.toList(growable: false))); + }); + + test("$name - toSet", () { + expect(wrapped.toSet(), unorderedEquals(original.toSet())); + }); + + test("$name - where", () { + expect(wrapped.where((x) => true), + orderedEquals(original.where((x) => true))); + expect(wrapped.where((x) => false), + orderedEquals(original.where((x) => false))); + expect(wrapped.where((x) => x != 42), + orderedEquals(original.where((x) => x != 42))); + }); +} + +void testReadList(List original, List wrapped, String name) { + test("$name - length", () { + expect(wrapped.length, equals(original.length)); + }); + + test("$name - isEmpty", () { + expect(wrapped.isEmpty, equals(original.isEmpty)); + }); + + test("$name - isNotEmpty", () { + expect(wrapped.isNotEmpty, equals(original.isNotEmpty)); + }); + + test("$name - []", () { + if (original.isEmpty) { + expect(() { wrapped[0]; }, throwsRangeError); + } else { + expect(wrapped[0], equals(original[0])); + } + }); + + test("$name - indexOf", () { + expect(wrapped.indexOf(42), equals(original.indexOf(42))); + }); + + test("$name - lastIndexOf", () { + expect(wrapped.lastIndexOf(42), equals(original.lastIndexOf(42))); + }); + + test("$name - getRange", () { + int len = original.length; + expect(wrapped.getRange(0, len), equals(original.getRange(0, len))); + expect(wrapped.getRange(len ~/ 2, len), + equals(original.getRange(len ~/ 2, len))); + expect(wrapped.getRange(0, len ~/ 2), + equals(original.getRange(0, len ~/ 2))); + }); + + test("$name - sublist", () { + int len = original.length; + expect(wrapped.sublist(0), equals(original.sublist(0))); + expect(wrapped.sublist(len ~/ 2), equals(original.sublist(len ~/ 2))); + expect(wrapped.sublist(0, len ~/ 2), + equals(original.sublist(0, len ~/ 2))); + }); + + test("$name - asMap", () { + expect(wrapped.asMap(), equals(original.asMap())); + }); +} + +void testNoWriteList(List original, List wrapped, String name) { + List copy = new List.from(original); + + testThrows(name, thunk) { + test(name, () { + expect(thunk, throwsUnsupportedError); + // No modifications happened. + expect(original, equals(copy)); + }); + } + + testThrows("$name - []= throws", () { wrapped[0] = 42; }); + + testThrows("$name - sort throws", () { wrapped.sort(); }); + + testThrows("$name - fillRange throws", () { + wrapped.fillRange(0, wrapped.length, 42); + }); + + testThrows("$name - setRange throws", () { + wrapped.setRange(0, wrapped.length, + new Iterable.generate(wrapped.length, (i) => i)); + }); + + testThrows("$name - setAll throws", () { + wrapped.setAll(0, new Iterable.generate(wrapped.length, (i) => i)); + }); +} + +void testWriteList(List original, List wrapped, String name) { + List copy = new List.from(original); + + test("$name - []=", () { + if (original.isNotEmpty) { + int originalFirst = original[0]; + wrapped[0] = originalFirst + 1; + expect(original[0], equals(originalFirst + 1)); + original[0] = originalFirst; + } else { + expect(() { wrapped[0] = 42; }, throws); + } + }); + + test("$name - sort", () { + List sortCopy = new List.from(original); + sortCopy.sort(); + wrapped.sort(); + expect(original, orderedEquals(sortCopy)); + original.setAll(0, copy); + }); + + test("$name - fillRange", () { + wrapped.fillRange(0, wrapped.length, 37); + for (int i = 0; i < original.length; i++) { + expect(original[i], equals(37)); + } + original.setAll(0, copy); + }); + + test("$name - setRange", () { + List reverseList = original.reversed.toList(); + wrapped.setRange(0, wrapped.length, reverseList); + expect(original, equals(reverseList)); + original.setAll(0, copy); + }); + + test("$name - setAll", () { + List reverseList = original.reversed.toList(); + wrapped.setAll(0, reverseList); + expect(original, equals(reverseList)); + original.setAll(0, copy); + }); +} + +void testNoChangeLengthList(List original, List wrapped, String name) { + List copy = new List.from(original); + + testThrows(name, thunk) { + test(name, () { + expect(thunk, throwsUnsupportedError); + // No modifications happened. + expect(original, equals(copy)); + }); + } + + testThrows("$name - length= throws", () { + wrapped.length = 100; + }); + + testThrows("$name - add throws", () { + wrapped.add(42); + }); + + testThrows("$name - addAll throws", () { + wrapped.addAll([42]); + }); + + testThrows("$name - insert throws", () { + wrapped.insert(0, 42); + }); + + testThrows("$name - insertAll throws", () { + wrapped.insertAll(0, [42]); + }); + + testThrows("$name - remove throws", () { + wrapped.remove(42); + }); + + testThrows("$name - removeAt throws", () { + wrapped.removeAt(0); + }); + + testThrows("$name - removeLast throws", () { + wrapped.removeLast(); + }); + + testThrows("$name - removeWhere throws", () { + wrapped.removeWhere((element) => false); + }); + + testThrows("$name - retainWhere throws", () { + wrapped.retainWhere((element) => true); + }); + + testThrows("$name - removeRange throws", () { + wrapped.removeRange(0, wrapped.length); + }); + + testThrows("$name - replaceRange throws", () { + wrapped.replaceRange(0, wrapped.length, [42]); + }); + + testThrows("$name - clear throws", () { + wrapped.clear(); + }); +} + +void testReadSet(Set original, Set wrapped, String name) { + Set copy = new Set.from(original); + + test("$name - containsAll", () { + expect(wrapped.containsAll(copy), isTrue); + expect(wrapped.containsAll(copy.toList()), isTrue); + expect(wrapped.containsAll([]), isTrue); + expect(wrapped.containsAll([42]), equals(original.containsAll([42]))); + }); + + test("$name - intersection", () { + expect(wrapped.intersection(new Set()), isEmpty); + expect(wrapped.intersection(copy), unorderedEquals(original)); + expect(wrapped.intersection(new Set.from([42])), + new Set.from(original.contains(42) ? [42] : [])); + }); + + test("$name - union", () { + expect(wrapped.union(new Set()), unorderedEquals(original)); + expect(wrapped.union(copy), unorderedEquals(original)); + expect(wrapped.union(new Set.from([42])), + equals(original.union(new Set.from([42])))); + }); + + test("$name - difference", () { + expect(wrapped.difference(new Set()), unorderedEquals(original)); + expect(wrapped.difference(copy), isEmpty); + expect(wrapped.difference(new Set.from([42])), + equals(original.difference(new Set.from([42])))); + }); +} + +void testNoChangeSet(Set original, Set wrapped, String name) { + List originalElements = original.toList(); + + testThrows(name, thunk) { + test(name, () { + expect(thunk, throwsUnsupportedError); + // No modifications happened. + expect(original.toList(), equals(originalElements)); + }); + } + + testThrows("$name - add throws", () { + wrapped.add(42); + }); + + testThrows("$name - addAll throws", () { + wrapped.addAll([42]); + }); + + testThrows("$name - addAll empty throws", () { + wrapped.addAll([]); + }); + + testThrows("$name - remove throws", () { + wrapped.remove(42); + }); + + testThrows("$name - removeAll throws", () { + wrapped.removeAll([42]); + }); + + testThrows("$name - removeAll empty throws", () { + wrapped.removeAll([]); + }); + + testThrows("$name - retainAll throws", () { + wrapped.retainAll([42]); + }); + + testThrows("$name - removeWhere throws", () { + wrapped.removeWhere((_) => false); + }); + + testThrows("$name - retainWhere throws", () { + wrapped.retainWhere((_) => true); + }); + + testThrows("$name - clear throws", () { + wrapped.clear(); + }); +} + +void testReadMap(Map original, Map wrapped, String name) { + test("$name length", () { + expect(wrapped.length, equals(original.length)); + }); + + test("$name isEmpty", () { + expect(wrapped.isEmpty, equals(original.isEmpty)); + }); + + test("$name isNotEmpty", () { + expect(wrapped.isNotEmpty, equals(original.isNotEmpty)); + }); + + test("$name operator[]", () { + expect(wrapped[0], equals(original[0])); + expect(wrapped[999], equals(original[999])); + }); + + test("$name containsKey", () { + expect(wrapped.containsKey(0), equals(original.containsKey(0))); + expect(wrapped.containsKey(999), equals(original.containsKey(999))); + }); + + test("$name containsValue", () { + expect(wrapped.containsValue(0), equals(original.containsValue(0))); + expect(wrapped.containsValue(999), equals(original.containsValue(999))); + }); + + test("$name forEach", () { + int origCnt = 0; + int wrapCnt = 0; + wrapped.forEach((k, v) { wrapCnt += 1 << k + 3 * v; }); + original.forEach((k, v) { origCnt += 1 << k + 3 * v; }); + expect(wrapCnt, equals(origCnt)); + }); + + test("$name keys", () { + expect(wrapped.keys, orderedEquals(original.keys)); + }); + + test("$name values", () { + expect(wrapped.values, orderedEquals(original.values)); + }); +} + +testNoChangeMap(Map original, Map wrapped, String name) { + Map copy = new Map.from(original); + + testThrows(name, thunk) { + test(name, () { + expect(thunk, throwsUnsupportedError); + // No modifications happened. + expect(original, equals(copy)); + }); + } + + testThrows("$name operator[]= throws", () { + wrapped[0] = 42; + }); + + testThrows("$name putIfAbsent throws", () { + wrapped.putIfAbsent(0, () => 42); + }); + + testThrows("$name addAll throws", () { + wrapped.addAll(new Map()..[42] = 42); + }); + + testThrows("$name addAll empty throws", () { + wrapped.addAll(new Map()); + }); + + testThrows("$name remove throws", () { + wrapped.remove(0); + }); + + testThrows("$name clear throws", () { + wrapped.clear(); + }); +} diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart new file mode 100644 index 00000000..875a70ae --- /dev/null +++ b/pkgs/collection/test/wrapper_test.dart @@ -0,0 +1,255 @@ +// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +/// Tests wrapper utilities. + +import "dart:collection"; +import "package:collection/collection.dart"; +import "package:unittest/unittest.dart"; + +// Test that any member access/call on the wrapper object is equal to +// an expected access on the wrapped object. +// This is implemented by capturing accesses using noSuchMethod and comparing +// them to expected accesses captured previously. + +// Compare two Invocations for having equal type and arguments. +void testInvocations(Invocation i1, Invocation i2) { + String name = "${i1.memberName}"; + expect(i1.isGetter, equals(i2.isGetter), reason: name); + expect(i1.isSetter, equals(i2.isSetter), reason: name); + expect(i1.memberName, equals(i2.memberName), reason: name); + expect(i1.positionalArguments, equals(i2.positionalArguments), reason: name); + expect(i1.namedArguments, equals(i2.namedArguments), reason: name); +} + +/** + * Utility class to record a member access and a member access on a wrapped + * object, and compare them for equality. + */ +abstract class Expector { + getWrappedObject(action(Invocation i)); + // Hack to test assignment ([]=) because it doesn't return the result + // of the member call. Instead use (expect..[4]=5).equal[4]=5 where + // you would normally use expect[4].equals[4] for non-assignments. + var equals; + + noSuchMethod(Invocation m) => new _Equals(equals = getWrappedObject((m2) { + testInvocations(m, m2); + })); +} + +// An object with a field called "equals", only introduced into the +// flow to allow writing expect.xxx.equals.xxx. +class _Equals { + final equals; + _Equals(this.equals); +} + +// Parameterization of noSuchMethod. +class NSM { + Function _action; + NSM(this._action); + noSuchMethod(Invocation i) => _action(i); +} + +// LikeNSM, but has types Iterable, Set and List to allow it as +// argument to DelegatingIterable/Set/List. +class IterableNSM extends NSM implements Iterable, Set, List, Queue { + IterableNSM(action(Invocation i)) : super(action); + noSuchMethod(Invocation i) => super.noSuchMethod(i); // Silence warnings +} + +// Expector that wraps in DelegatingIterable. +class IterableExpector extends Expector { + getWrappedObject(void action(Invocation i)) { + return new DelegatingIterable(new IterableNSM(action)); + } +} + +// Expector that wraps in DelegatingList. +class ListExpector extends Expector { + getWrappedObject(void action(Invocation i)) { + return new DelegatingList(new IterableNSM(action)); + } +} + +// Expector that wraps in DelegatingSet. +class SetExpector extends Expector { + getWrappedObject(void action(Invocation i)) { + return new DelegatingSet(new IterableNSM(action)); + } +} + +// Expector that wraps in DelegatingSet. +class QueueExpector extends Expector { + getWrappedObject(void action(Invocation i)) { + return new DelegatingQueue(new IterableNSM(action)); + } +} + +// Like NSM but implements Map to allow as argument for DelegatingMap. +class MapNSM extends NSM implements Map { + MapNSM(action(Invocation i)) : super(action); + noSuchMethod(Invocation i) => super.noSuchMethod(i); +} + +// Expector that wraps in DelegatingMap. +class MapExpector extends Expector { + getWrappedObject(void action(Invocation i)) { + return new DelegatingMap(new MapNSM(action)); + } +} + +// Utility values to use as arguments in calls. +func0() {} +func1(x) {} +func2(x, y) {} +var val = new Object(); + +void main() { + testIterable(var expect) { + expect.any(func1).equals.any(func1); + expect.contains(val).equals.contains(val); + expect.elementAt(0).equals.elementAt(0); + expect.every(func1).equals.every(func1); + expect.expand(func1).equals.expand(func1); + expect.first.equals.first; + // Default values of the Iterable interface will be added in the + // second call to firstWhere, so we must record them in our + // expectation (which doesn't have the interface implementat or + // its default values). + expect.firstWhere(func1, orElse: null).equals.firstWhere(func1); + expect.firstWhere(func1, orElse: func0).equals. + firstWhere(func1, orElse: func0); + expect.fold(null, func2).equals.fold(null, func2); + expect.forEach(func1).equals.forEach(func1); + expect.isEmpty.equals.isEmpty; + expect.isNotEmpty.equals.isNotEmpty; + expect.iterator.equals.iterator; + expect.join('').equals.join(); + expect.join("X").equals.join("X"); + expect.last.equals.last; + expect.lastWhere(func1, orElse: null).equals.lastWhere(func1); + expect.lastWhere(func1, orElse: func0).equals. + lastWhere(func1, orElse: func0); + expect.length.equals.length; + expect.map(func1).equals.map(func1); + expect.reduce(func2).equals.reduce(func2); + expect.single.equals.single; + expect.singleWhere(func1).equals.singleWhere(func1); + expect.skip(5).equals.skip(5); + expect.skipWhile(func1).equals.skipWhile(func1); + expect.take(5).equals.take(5); + expect.takeWhile(func1).equals.takeWhile(func1); + expect.toList(growable: true).equals.toList(); + expect.toList(growable: true).equals.toList(growable: true); + expect.toList(growable: false).equals.toList(growable: false); + expect.toSet().equals.toSet(); + expect.where(func1).equals.where(func1); + } + + void testList(var expect) { + testIterable(expect); + + expect[4].equals[4]; + (expect..[4] = 5).equals[4] = 5; + + expect.add(val).equals.add(val); + expect.addAll([val]).equals.addAll([val]); + expect.asMap().equals.asMap(); + expect.clear().equals.clear(); + expect.fillRange(4, 5, null).equals.fillRange(4, 5); + expect.fillRange(4, 5, val).equals.fillRange(4, 5, val); + expect.getRange(4, 5).equals.getRange(4, 5); + expect.indexOf(val, 0).equals.indexOf(val); + expect.indexOf(val, 4).equals.indexOf(val, 4); + expect.insert(4, val).equals.insert(4, val); + expect.insertAll(4, [val]).equals.insertAll(4, [val]); + expect.lastIndexOf(val, null).equals.lastIndexOf(val); + expect.lastIndexOf(val, 4).equals.lastIndexOf(val, 4); + (expect..length = 4).equals.length = 4; + expect.remove(val).equals.remove(val); + expect.removeAt(4).equals.removeAt(4); + expect.removeLast().equals.removeLast(); + expect.removeRange(4, 5).equals.removeRange(4, 5); + expect.removeWhere(func1).equals.removeWhere(func1); + expect.replaceRange(4, 5, [val]).equals.replaceRange(4, 5, [val]); + expect.retainWhere(func1).equals.retainWhere(func1); + expect.reversed.equals.reversed; + expect.setAll(4, [val]).equals.setAll(4, [val]); + expect.setRange(4, 5, [val], 0).equals.setRange(4, 5, [val]); + expect.setRange(4, 5, [val], 3).equals.setRange(4, 5, [val], 3); + expect.sort(null).equals.sort(); + expect.sort(func2).equals.sort(func2); + expect.sublist(4, null).equals.sublist(4); + expect.sublist(4, 5).equals.sublist(4, 5); + } + + void testSet(var expect) { + testIterable(expect); + Set set = new Set(); + expect.add(val).equals.add(val); + expect.addAll([val]).equals.addAll([val]); + expect.clear().equals.clear(); + expect.containsAll([val]).equals.containsAll([val]); + expect.difference(set).equals.difference(set); + expect.intersection(set).equals.intersection(set); + expect.remove(val).equals.remove(val); + expect.removeAll([val]).equals.removeAll([val]); + expect.removeWhere(func1).equals.removeWhere(func1); + expect.retainAll([val]).equals.retainAll([val]); + expect.retainWhere(func1).equals.retainWhere(func1); + expect.union(set).equals.union(set); + } + + void testQueue(var expect) { + testIterable(expect); + expect.add(val).equals.add(val); + expect.addAll([val]).equals.addAll([val]); + expect.addFirst(val).equals.addFirst(val); + expect.addLast(val).equals.addLast(val); + expect.clear().equals.clear(); + expect.remove(val).equals.remove(val); + expect.removeFirst().equals.removeFirst(); + expect.removeLast().equals.removeLast(); + } + + void testMap(var expect) { + Map map = new Map(); + expect[val].equals[val]; + (expect..[val] = val).equals[val] = val; + expect.addAll(map).equals.addAll(map); + expect.clear().equals.clear(); + expect.containsKey(val).equals.containsKey(val); + expect.containsValue(val).equals.containsValue(val); + expect.forEach(func2).equals.forEach(func2); + expect.isEmpty.equals.isEmpty; + expect.isNotEmpty.equals.isNotEmpty; + expect.keys.equals.keys; + expect.length.equals.length; + expect.putIfAbsent(val, func0).equals.putIfAbsent(val, func0); + expect.remove(val).equals.remove(val); + expect.values.equals.values; + } + + test("Iterable", () { + testIterable(new IterableExpector()); + }); + + test("List", () { + testList(new ListExpector()); + }); + + test("Set", () { + testSet(new SetExpector()); + }); + + test("Queue", () { + testQueue(new QueueExpector()); + }); + + test("Map", () { + testMap(new MapExpector()); + }); +} From 3ac35b7ad73369a2c52c6021681b4c03e600e424 Mon Sep 17 00:00:00 2001 From: "lrn@google.com" Date: Thu, 19 Dec 2013 12:12:44 +0000 Subject: [PATCH 002/235] Remove suprplus quoting from pubspec author fields. R=sgjesse@google.com Review URL: https://codereview.chromium.org//119093005 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/collection@31261 260f80e4-7a28-3924-810f-c04153c831b5 --- pkgs/collection/pubspec.yaml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index cdcbe889..0fec04b6 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,6 +1,6 @@ name: collection version: 0.9.0 -author: '"Dart Team "' +author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: http://www.dartlang.org dev_dependencies: From 1def18ca949c03efd8ec376b3ca0e190a4f8b9d1 Mon Sep 17 00:00:00 2001 From: "lrn@google.com" Date: Thu, 19 Dec 2013 12:36:15 +0000 Subject: [PATCH 003/235] Adding license files to packages. R=sgjesse@google.com Review URL: https://codereview.chromium.org//119203002 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/collection@31264 260f80e4-7a28-3924-810f-c04153c831b5 --- pkgs/collection/LICENSE | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 pkgs/collection/LICENSE diff --git a/pkgs/collection/LICENSE b/pkgs/collection/LICENSE new file mode 100644 index 00000000..ee999303 --- /dev/null +++ b/pkgs/collection/LICENSE @@ -0,0 +1,26 @@ +Copyright 2013, the Dart project authors. All rights reserved. +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above + copyright notice, this list of conditions and the following + disclaimer in the documentation and/or other materials provided + with the distribution. + * Neither the name of Google Inc. nor the names of its + contributors may be used to endorse or promote products derived + from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. From dc6a82ea15cfa3649a6b79328bebbf51bbfd5cea Mon Sep 17 00:00:00 2001 From: "lrn@google.com" Date: Thu, 19 Dec 2013 12:57:38 +0000 Subject: [PATCH 004/235] Add missing files from previous commit. Review URL: https://codereview.chromium.org//118783004 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/collection@31268 260f80e4-7a28-3924-810f-c04153c831b5 --- pkgs/collection/lib/iterable_zip.dart | 59 +++++++++++ pkgs/collection/test/iterable_zip_test.dart | 112 ++++++++++++++++++++ 2 files changed, 171 insertions(+) create mode 100644 pkgs/collection/lib/iterable_zip.dart create mode 100644 pkgs/collection/test/iterable_zip_test.dart diff --git a/pkgs/collection/lib/iterable_zip.dart b/pkgs/collection/lib/iterable_zip.dart new file mode 100644 index 00000000..772b07e6 --- /dev/null +++ b/pkgs/collection/lib/iterable_zip.dart @@ -0,0 +1,59 @@ +// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +/** + * Zipping multiple iterables into one iterable of tuples of values. + */ +library dart.pkg.collection.iterable_zip; + +import "dart:collection" show IterableBase; + +/** + * Iterable that iterates over lists of values from other iterables. + * + * When [iterator] is read, an [Iterator] is created for each [Iterable] in + * the [Iterable] passed to the constructor. + * + * As long as all these iterators have a next value, those next values are + * combined into a single list, which becomes the next value of this + * [Iterable]'s [Iterator]. As soon as any of the iterators run out, + * the zipped iterator also stops. + */ +class IterableZip extends IterableBase { + final Iterable _iterables; + IterableZip(Iterable iterables) + : this._iterables = iterables; + + /** + * Returns an iterator that combines values of the iterables' iterators + * as long as they all have values. + */ + Iterator get iterator { + List iterators = _iterables.map((x) => x.iterator).toList(growable: false); + // TODO(lrn): Return an empty iterator directly if iterators is empty? + return new _IteratorZip(iterators); + } +} + +class _IteratorZip implements Iterator { + final List _iterators; + List _current; + _IteratorZip(List iterators) : _iterators = iterators; + bool moveNext() { + if (_iterators.isEmpty) return false; + for (int i = 0; i < _iterators.length; i++) { + if (!_iterators[i].moveNext()) { + _current = null; + return false; + } + } + _current = new List(_iterators.length); + for (int i = 0; i < _iterators.length; i++) { + _current[i] = _iterators[i].current; + } + return true; + } + + List get current => _current; +} diff --git a/pkgs/collection/test/iterable_zip_test.dart b/pkgs/collection/test/iterable_zip_test.dart new file mode 100644 index 00000000..ec191fe5 --- /dev/null +++ b/pkgs/collection/test/iterable_zip_test.dart @@ -0,0 +1,112 @@ +// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import "dart:collection"; +import "package:collection/iterable_zip.dart"; +import "package:unittest/unittest.dart"; + +/// Iterable like [base] except that it throws when value equals [errorValue]. +Iterable iterError(Iterable base, int errorValue) { + return base.map((x) => x == errorValue ? throw "BAD" : x); +} + +main() { + test("Basic", () { + expect(new IterableZip([[1, 2, 3], [4, 5, 6], [7, 8, 9]]), + equals([[1, 4, 7], [2, 5, 8], [3, 6, 9]])); + }); + + test("Uneven length 1", () { + expect(new IterableZip([[1, 2, 3, 99, 100], [4, 5, 6], [7, 8, 9]]), + equals([[1, 4, 7], [2, 5, 8], [3, 6, 9]])); + }); + + test("Uneven length 2", () { + expect(new IterableZip([[1, 2, 3], [4, 5, 6, 99, 100], [7, 8, 9]]), + equals([[1, 4, 7], [2, 5, 8], [3, 6, 9]])); + }); + + test("Uneven length 3", () { + expect(new IterableZip([[1, 2, 3], [4, 5, 6], [7, 8, 9, 99, 100]]), + equals([[1, 4, 7], [2, 5, 8], [3, 6, 9]])); + }); + + test("Uneven length 3", () { + expect(new IterableZip([[1, 2, 3, 98], [4, 5, 6], [7, 8, 9, 99, 100]]), + equals([[1, 4, 7], [2, 5, 8], [3, 6, 9]])); + }); + + test("Empty 1", () { + expect(new IterableZip([[], [4, 5, 6], [7, 8, 9]]), equals([])); + }); + + test("Empty 2", () { + expect(new IterableZip([[1, 2, 3], [], [7, 8, 9]]), equals([])); + }); + + test("Empty 3", () { + expect(new IterableZip([[1, 2, 3], [4, 5, 6], []]), equals([])); + }); + + test("Empty source", () { + expect(new IterableZip([]), equals([])); + }); + + test("Single Source", () { + expect(new IterableZip([[1, 2, 3]]), equals([[1], [2], [3]])); + }); + + test("Not-lists", () { + // Use other iterables than list literals. + Iterable it1 = [1, 2, 3, 4, 5, 6].where((x) => x < 4); + Set it2 = new LinkedHashSet()..add(4)..add(5)..add(6); + Iterable it3 = (new LinkedHashMap()..[7] = 0 ..[8] = 0 ..[9] = 0).keys; + Iterable allIts = + new Iterable.generate(3, (i) => [it1, it2, it3][i]); + expect(new IterableZip(allIts), + equals([[1, 4, 7], [2, 5, 8], [3, 6, 9]])); + }); + + test("Error 1", () { + expect(() => new IterableZip([iterError([1, 2, 3], 2), + [4, 5, 6], + [7, 8, 9]]).toList(), + throwsA(equals("BAD"))); + }); + + test("Error 2", () { + expect(() => new IterableZip([[1, 2, 3], + iterError([4, 5, 6], 5), + [7, 8, 9]]).toList(), + throwsA(equals("BAD"))); + }); + + test("Error 3", () { + expect(() => new IterableZip([[1, 2, 3], + [4, 5, 6], + iterError([7, 8, 9], 8)]).toList(), + throwsA(equals("BAD"))); + }); + + test("Error at end", () { + expect(() => new IterableZip([[1, 2, 3], + iterError([4, 5, 6], 6), + [7, 8, 9]]).toList(), + throwsA(equals("BAD"))); + }); + + test("Error before first end", () { + expect(() => new IterableZip([iterError([1, 2, 3, 4], 4), + [4, 5, 6], + [7, 8, 9]]).toList(), + throwsA(equals("BAD"))); + }); + + test("Error after first end", () { + expect(new IterableZip([[1, 2, 3], + [4, 5, 6], + iterError([7, 8, 9, 10], 10)]), + equals([[1, 4, 7], [2, 5, 8], [3, 6, 9]])); + }); +} From a850ad784afd67def531769985592308bbd378f5 Mon Sep 17 00:00:00 2001 From: "lrn@google.com" Date: Tue, 7 Jan 2014 07:58:57 +0000 Subject: [PATCH 005/235] Add priority queue to package:collection. R=ajohnsen@google.com, sgjesse@google.com Review URL: https://codereview.chromium.org//110483006 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/collection@31532 260f80e4-7a28-3924-810f-c04153c831b5 --- pkgs/collection/README.md | 30 +- pkgs/collection/lib/collection.dart | 2 + pkgs/collection/lib/priority_queue.dart | 383 ++++++++++++++++++ pkgs/collection/pubspec.yaml | 2 +- pkgs/collection/test/priority_queue_test.dart | 167 ++++++++ 5 files changed, 575 insertions(+), 9 deletions(-) create mode 100644 pkgs/collection/lib/priority_queue.dart create mode 100644 pkgs/collection/test/priority_queue_test.dart diff --git a/pkgs/collection/README.md b/pkgs/collection/README.md index bb392fd3..7ebd62af 100644 --- a/pkgs/collection/README.md +++ b/pkgs/collection/README.md @@ -8,14 +8,24 @@ with utility functions and classes that makes working with collections easier. The `collection` package can be imported as separate libraries, or in totality: - import 'package:collection/equality.dart'; import 'package:collection/algorithms.dart'; + import 'package:collection/equality.dart'; + import 'package:collection/iterable_zip.dart'; + import 'package:collection/priority_queue.dart'; import 'package:collection/wrappers.dart'; or import 'package:collection/collection.dart'; +## Algorithms + +The algorithms library contains functions that operate on lists. + +It contains ways to shuffle a `List`, do binary search on a sorted `List`, and +various sorting algorithms. + + ## Equality The equality library gives a way to specify equality of elements and @@ -28,19 +38,23 @@ The equality library provides a way to say define such an equality. In this case, for example, `const SetEquality(const IdentityEquality())` is an equality that considers two sets equal exactly if they contain identical elements. -The library provides ways to define equalities on `Iterable`s, `List`s, `Set`s, and -`Map`s, as well as combinations of these, such as: +The library provides ways to define equalities on `Iterable`s, `List`s, `Set`s, +and `Map`s, as well as combinations of these, such as: const MapEquality(const IdentityEquality(), const ListEquality()); -This equality considers maps equal if they have identical keys, and the corresponding values are lists with equal (`operator==`) values. +This equality considers maps equal if they have identical keys, and the +corresponding values are lists with equal (`operator==`) values. -## Algorithms -The algorithms library contains functions that operate on lists. +## Iterable Zip -It contains ways to shuffle a `List`, do binary search on a sorted `List`, and -some different sorting algorithms. +Utilities for "zipping" a list of iterables into an iterable of lists. + + +## Priority Queue + +An interface and implemention of a priority queue. ## Wrappers diff --git a/pkgs/collection/lib/collection.dart b/pkgs/collection/lib/collection.dart index a6f192d8..d6400716 100644 --- a/pkgs/collection/lib/collection.dart +++ b/pkgs/collection/lib/collection.dart @@ -11,6 +11,7 @@ * and various sorting algorithms). * - `equality.dart`: Different notions of equality of collections. * - `iterable_zip.dart`: Combining multiple iterables into one. + * - `priority_queue.dart`: Priority queue type and implementations. * - `wrappers.dart`: Wrapper classes that delegate to a collection object. * Includes unmodifiable views of collections. */ @@ -19,4 +20,5 @@ library dart.pkg.collection; export "algorithms.dart"; export "equality.dart"; export "iterable_zip.dart"; +export "priority_queue.dart"; export "wrappers.dart"; diff --git a/pkgs/collection/lib/priority_queue.dart b/pkgs/collection/lib/priority_queue.dart new file mode 100644 index 00000000..eb0cda38 --- /dev/null +++ b/pkgs/collection/lib/priority_queue.dart @@ -0,0 +1,383 @@ +// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +library dart.pkg.collection.priority_queue; + +import "dart:collection" show SplayTreeSet; + +/** + * A priority queue is a priority based work-list of elements. + * + * The queue allows adding elements, and removing them again in priority order. + */ +abstract class PriorityQueue { + /** + * Number of elements in the queue. + */ + int get length; + + /** + * Whether the queue is empty. + */ + bool get isEmpty; + + /** + * Whether the queue has any elements. + */ + bool get isNotEmpty; + + /** + * Checks if [object] is in the queue. + * + * Returns true if the element is found. + */ + bool contains(E object); + + /** + * Returns the next element that will be returned by [removeFirst]. + * + * The element is not removed from the queue. + * + * The queue must not be empty when this method is called. + */ + E get first; + + /** + * Removes and returns the element with the highest priority. + * + * Repeatedly calling this method, without adding element in between, + * is guaranteed to return elements in non-decreasing order as, specified by + * [comparison]. + * + * The queue must not be empty when this method is called. + */ + E removeFirst(); + + /** + * Removes an element that compares equal to [element] in the queue. + * + * Returns true if an element is found and removed, + * and false if not equal element is found. + */ + bool remove(E element); + + /** + * Removes all the elements from this queue and returns them. + * + * The returned iterable has no specified order. + */ + Iterable removeAll(); + + /** + * Removes all the elements from this queue. + */ + void clear(); + + /** + * Returns a list of the elements of this queue in priority order. + * + * The queue is not modified. + * + * The order is the order that the elements would be in if they were + * removed from this queue using [removeFirst]. + */ + List toList(); + + /** + * Return a comparator based set using the comparator of this queue. + * + * The queue is not modified. + * + * The returned [Set] is currently a [SplayTreeSet], + * but this may change as other ordered sets are implemented. + * + * The set contains all the elements of this queue. + * If an element occurs more than once in the queue, + * the set will contain it only once. + */ + Set toSet(); +} + +/** + * Heap based priority queue. + * + * The elements are kept in a heap structure, + * where the element with the highest priority is immediately accessible, + * and modifying a single element takes + * logarithmic time in the number of elements on average. + * + * * The [add] and [removeFirst] operations take amortized logarithmic time, + * O(log(n)), but may occasionally take linear time when growing the capacity + * of the heap. + * * The [addAll] operation works as doing repeated [add] operations. + * * The [first] getter takes constant time, O(1). + * * The [clear] and [removeAll] methods also take constant time, O(1). + * * The [contains] and [remove] operations may need to search the entire + * queue for the elements, taking O(n) time. + * * The [toList] operation effectively sorts the elements, taking O(n*log(n)) + * time. + * * The [toSet] operation effectively adds each element to the new set, taking + * an expected O(n*log(n)) time. + */ +class HeapPriorityQueue implements PriorityQueue { + /** + * Initial capacity of a queue when created, or when added to after a [clear]. + * + * Number can be any positive value. Picking a size that gives a whole + * number of "tree levels" in the heap is only done for aesthetic reasons. + */ + static const int _INITIAL_CAPACITY = 7; + + /** + * The comparison being used to compare the priority of elements. + */ + final Comparator comparison; + + /** + * List implementation of a heap. + */ + List _queue = new List(_INITIAL_CAPACITY); + + /** + * Number of elements in queue. + * + * The heap is implemented in the first [_length] entries of [_queue]. + */ + int _length = 0; + + /** + * Create a new priority queue. + * + * The [comparison] is a [Comparator] used to compare the priority of + * elements. An element that compares as less than another element has + * a higher priority. + * + * If [comparison] is omitted, it defaults to [Comparable.compare]. + */ + HeapPriorityQueue([int comparison(E e1, E e2)]) + : comparison = (comparison != null) ? comparison : Comparable.compare; + + void add(E element) { + _add(element); + } + + void addAll(Iterable elements) { + for (E element in elements) { + _add(element); + } + } + + void clear() { + _queue = const []; + _length = 0; + } + + bool contains(E object) { + return _locate(object) >= 0; + } + + E get first { + if (_length == 0) throw new StateError("No such element"); + return _queue[0]; + } + + bool get isEmpty => _length == 0; + + bool get isNotEmpty => _length != 0; + + int get length => _length; + + bool remove(E element) { + int index = _locate(element); + if (index < 0) return false; + E last = _removeLast(); + if (index < _length) { + int comp = comparison(last, element); + if (comp <= 0) { + _bubbleUp(last, index); + } else { + _bubbleDown(last, index); + } + } + return true; + } + + Iterable removeAll() { + List result = _queue; + int length = _length; + _queue = const []; + _length = 0; + return result.take(length); + } + + E removeFirst() { + if (_length == 0) throw new StateError("No such element"); + E result = _queue[0]; + E last = _removeLast(); + if (_length > 0) { + _bubbleDown(last, 0); + } + return result; + } + + List toList() { + List list = new List()..length = _length; + list.setRange(0, _length, _queue); + list.sort(comparison); + return list; + } + + Set toSet() { + Set set = new SplayTreeSet(comparison); + for (int i = 0; i < _length; i++) { + set.add(_queue[i]); + } + return set; + } + + /** + * Returns some representation of the queue. + * + * The format isn't significant, and may change in the future. + */ + String toString() { + return _queue.take(_length).toString(); + } + + /** + * Add element to the queue. + * + * Grows the capacity if the backing list is full. + */ + void _add(E element) { + if (_length == _queue.length) _grow(); + _bubbleUp(element, _length++); + } + + /** + * Find the index of an object in the heap. + * + * Returns -1 if the object is not found. + */ + int _locate(E object) { + if (_length == 0) return -1; + // Count positions from one instad of zero. This gives the numbers + // some nice properties. For example, all right children are odd, + // their left sibling is even, and the parent is found by shifting + // right by one. + // Valid range for position is [1.._length], inclusive. + int position = 1; + // Pre-order depth first search, omit child nodes if the current + // node has lower priority than [object], because all nodes lower + // in the heap will also have lower priority. + do { + int index = position - 1; + E element = _queue[index]; + int comp = comparison(element, object); + if (comp == 0) return index; + if (comp < 0) { + // Element may be in subtree. + // Continue with the left child, if it is there. + int leftChildPosition = position * 2; + if (leftChildPosition <= _length) { + position = leftChildPosition; + continue; + } + } + // Find the next right sibling or right ancestor sibling. + do { + while (position.isOdd) { + // While position is a right child, go to the parent. + position >>= 1; + } + // Then go to the right sibling of the left-child. + position += 1; + } while (position > _length); // Happens if last element is a left child. + } while (position != 1); // At root again. Happens for right-most element. + return -1; + } + + E _removeLast() { + int newLength = _length - 1; + E last = _queue[newLength]; + _queue[newLength] = null; + _length = newLength; + return last; + } + + /** + * Place [element] in heap at [index] or above. + * + * Put element into the empty cell at `index`. + * While the `element` has higher priority than the + * parent, swap it with the parent. + */ + void _bubbleUp(E element, int index) { + while (index > 0) { + int parentIndex = (index - 1) ~/ 2; + E parent = _queue[parentIndex]; + if (comparison(element, parent) > 0) break; + _queue[index] = parent; + index = parentIndex; + } + _queue[index] = element; + } + + /** + * Place [element] in heap at [index] or above. + * + * Put element into the empty cell at `index`. + * While the `element` has lower priority than either child, + * swap it with the highest priority child. + */ + void _bubbleDown(E element, int index) { + int rightChildIndex = index * 2 + 2; + while (rightChildIndex < _length) { + int leftChildIndex = rightChildIndex - 1; + E leftChild = _queue[leftChildIndex]; + E rightChild = _queue[rightChildIndex]; + int comp = comparison(leftChild, rightChild); + int minChildIndex; + E minChild; + if (comp < 0) { + minChild = leftChild; + minChildIndex = leftChildIndex; + } else { + minChild = rightChild; + minChildIndex = rightChildIndex; + } + comp = comparison(element, minChild); + if (comp <= 0) { + _queue[index] = element; + return; + } + _queue[index] = minChild; + index = minChildIndex; + rightChildIndex = index * 2 + 2; + } + int leftChildIndex = rightChildIndex - 1; + if (leftChildIndex < _length) { + E child = _queue[leftChildIndex]; + int comp = comparison(element, child); + if (comp > 0) { + _queue[index] = child; + index = leftChildIndex; + } + } + _queue[index] = element; + } + + /** + * Grows the capacity of the list holding the heap. + * + * Called when the list is full. + */ + void _grow() { + int newCapacity = _queue.length * 2 + 1; + if (newCapacity < _INITIAL_CAPACITY) newCapacity = _INITIAL_CAPACITY; + List newQueue = new List(newCapacity); + newQueue.setRange(0, _length, _queue); + _queue = newQueue; + } +} diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 0fec04b6..09c07a78 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 0.9.0 +version: 0.9.1-dev author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: http://www.dartlang.org diff --git a/pkgs/collection/test/priority_queue_test.dart b/pkgs/collection/test/priority_queue_test.dart new file mode 100644 index 00000000..3d9c9fdb --- /dev/null +++ b/pkgs/collection/test/priority_queue_test.dart @@ -0,0 +1,167 @@ +// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +/// Tests priority queue implementations utilities. + +import "dart:collection"; +import "package:collection/priority_queue.dart"; +import "package:unittest/unittest.dart"; + +void main() { + testInt(() => new HeapPriorityQueue()); + testCustom((comparator) => new HeapPriorityQueue(comparator)); +} + +void testInt(PriorityQueue create()) { + for (int count in [1, 5, 127, 128, 400]) { + testQueue("int:$count", + create, + new List.generate(count, (x) => x), + count); + } +} + +void testCustom(PriorityQueue create(comparator)) { + for (int count in [1, 5, 127, 128, 400]) { + testQueue("Custom:$count/null", + () => create(null), + new List.generate(count, (x) => new C(x)), + new C(count)); + testQueue("Custom:$count/compare", + () => create(compare), + new List.generate(count, (x) => new C(x)), + new C(count)); + testQueue("Custom:$count/compareNeg", + () => create(compareNeg), + new List.generate(count, (x) => new C(count - x)), + new C(0)); + } +} + +/** + * Test that a queue behaves correctly. + * + * The elements must be in priority order, from highest to lowest. + */ +void testQueue(String name, PriorityQueue create(), List elements, notElement) { + test(name, () => testQueueBody(create, elements, notElement)); +} + +void testQueueBody(PriorityQueue create(), List elements, notElement) { + PriorityQueue q = create(); + expect(q.isEmpty, isTrue); + expect(q, hasLength(0)); + expect(() { q.first; }, throwsStateError); + expect(() { q.removeFirst(); }, throwsStateError); + + // Tests removeFirst, first, contains, toList and toSet. + void testElements() { + expect(q.isNotEmpty, isTrue); + expect(q, hasLength(elements.length)); + + expect(q.toList(), equals(elements)); + expect(q.toSet().toList(), equals(elements)); + + for (int i = 0; i < elements.length; i++) { + expect(q.contains(elements[i]), isTrue); + } + expect(q.contains(notElement), isFalse); + + List all = []; + while (!q.isEmpty) { + var expected = q.first; + var actual = q.removeFirst(); + expect(actual, same(expected)); + all.add(actual); + } + + expect(all.length, elements.length); + for (int i = 0; i < all.length; i++) { + expect(all[i], same(elements[i])); + } + + expect(q.isEmpty, isTrue); + } + + q.addAll(elements); + testElements(); + + q.addAll(elements.reversed); + testElements(); + + // Add elements in a non-linear order (gray order). + for (int i = 0, j = 0; i < elements.length; i++) { + int gray; + do { + gray = j ^ (j >> 1); + j++; + } while (gray >= elements.length); + q.add(elements[gray]); + } + testElements(); + + // Add elements by picking the middle element first, and then recursing + // on each side. + void addRec(int min, int max) { + int mid = min + ((max - min) >> 1); + q.add(elements[mid]); + if (mid + 1 < max) addRec(mid + 1, max); + if (mid > min) addRec(min, mid); + } + addRec(0, elements.length); + testElements(); + + // Test removeAll. + q.addAll(elements); + expect(q, hasLength(elements.length)); + Iterable all = q.removeAll(); + expect(q.isEmpty, isTrue); + expect(all, hasLength(elements.length)); + for (int i = 0; i < elements.length; i++) { + expect(all, contains(elements[i])); + } + + // Test the same element more than once in queue. + q.addAll(elements); + q.addAll(elements.reversed); + expect(q, hasLength(elements.length * 2)); + for (int i = 0; i < elements.length; i++) { + var element = elements[i]; + expect(q.contains(element), isTrue); + expect(q.removeFirst(), element); + expect(q.removeFirst(), element); + } + + // Test queue with all same element. + var a = elements[0]; + for (int i = 0; i < elements.length; i++) { + q.add(a); + } + expect(q, hasLength(elements.length)); + expect(q.contains(a), isTrue); + expect(q.contains(notElement), isFalse); + q.removeAll().forEach((x) => expect(x, same(a))); + + // Test remove. + q.addAll(elements); + for (var element in elements.reversed) { + expect(q.remove(element), isTrue); + } + expect(q.isEmpty, isTrue); +} + + +// Custom class. +// Class is comparable, comparators match normal and inverse order. +int compare(C c1, C c2) => c1.value - c2.value; +int compareNeg(C c1, C c2) => c2.value - c1.value; + +class C implements Comparable { + final int value; + const C(this.value); + int get hashCode => value; + bool operator==(Object other) => other is C && value == other.value; + int compareTo(C other) => value - other.value; + String toString() => "C($value)"; +} From 92bae404d97d808e7e639592475421684ae2f466 Mon Sep 17 00:00:00 2001 From: "lrn@google.com" Date: Tue, 7 Jan 2014 13:10:07 +0000 Subject: [PATCH 006/235] Add missing signatures for add and addAll to priority queue. R=ajohnsen@google.com Review URL: https://codereview.chromium.org//121583004 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/collection@31541 260f80e4-7a28-3924-810f-c04153c831b5 --- pkgs/collection/lib/priority_queue.dart | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/pkgs/collection/lib/priority_queue.dart b/pkgs/collection/lib/priority_queue.dart index eb0cda38..efb32390 100644 --- a/pkgs/collection/lib/priority_queue.dart +++ b/pkgs/collection/lib/priority_queue.dart @@ -34,6 +34,19 @@ abstract class PriorityQueue { */ bool contains(E object); + /** + * Adds element to the queue. + * + * The element will become the next to be removed by [removeFirst] + * when all elements with higher priority have been removed. + */ + void add(E element); + + /** + * Adds all [elements] to the queue. + */ + void addAll(Iterable elements); + /** * Returns the next element that will be returned by [removeFirst]. * @@ -58,7 +71,7 @@ abstract class PriorityQueue { * Removes an element that compares equal to [element] in the queue. * * Returns true if an element is found and removed, - * and false if not equal element is found. + * and false if no equal element is found. */ bool remove(E element); From 296bb516bf375675411ec4f1d44b7a7a20587310 Mon Sep 17 00:00:00 2001 From: "lrn@google.com" Date: Wed, 8 Jan 2014 12:37:38 +0000 Subject: [PATCH 007/235] Reduce running time of priority queue test. R=ricow@google.com Review URL: https://codereview.chromium.org//128033003 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/collection@31605 260f80e4-7a28-3924-810f-c04153c831b5 --- pkgs/collection/test/priority_queue_test.dart | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/test/priority_queue_test.dart b/pkgs/collection/test/priority_queue_test.dart index 3d9c9fdb..1040e1a0 100644 --- a/pkgs/collection/test/priority_queue_test.dart +++ b/pkgs/collection/test/priority_queue_test.dart @@ -14,7 +14,7 @@ void main() { } void testInt(PriorityQueue create()) { - for (int count in [1, 5, 127, 128, 400]) { + for (int count in [1, 5, 127, 128]) { testQueue("int:$count", create, new List.generate(count, (x) => x), @@ -23,7 +23,7 @@ void testInt(PriorityQueue create()) { } void testCustom(PriorityQueue create(comparator)) { - for (int count in [1, 5, 127, 128, 400]) { + for (int count in [1, 5, 127, 128]) { testQueue("Custom:$count/null", () => create(null), new List.generate(count, (x) => new C(x)), From c55e954f1a0ace4300b4067c70a9196d581e73a8 Mon Sep 17 00:00:00 2001 From: "lrn@google.com" Date: Tue, 14 Jan 2014 12:30:20 +0000 Subject: [PATCH 008/235] Publish priority queue in pkg:collection. Updates version to 0.9.1. R=sgjesse@google.com Review URL: https://codereview.chromium.org//138143002 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/collection@31780 260f80e4-7a28-3924-810f-c04153c831b5 --- pkgs/collection/pubspec.yaml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 09c07a78..6f9d2903 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 0.9.1-dev +version: 0.9.1 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: http://www.dartlang.org From 5439c64f57112684401d4cc5d31c5df3a04e3fc2 Mon Sep 17 00:00:00 2001 From: "lrn@google.com" Date: Tue, 28 Jan 2014 09:31:46 +0000 Subject: [PATCH 009/235] Add toString to delegating collections in package:collection. BUG= http://dartbug.com/16274 R=sgjesse@google.com Review URL: https://codereview.chromium.org//141703009 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/collection@32057 260f80e4-7a28-3924-810f-c04153c831b5 --- pkgs/collection/lib/wrappers.dart | 4 ++++ pkgs/collection/test/wrapper_test.dart | 32 ++++++++++++++++++++++++++ 2 files changed, 36 insertions(+) diff --git a/pkgs/collection/lib/wrappers.dart b/pkgs/collection/lib/wrappers.dart index ec78f5c5..1097c3ef 100644 --- a/pkgs/collection/lib/wrappers.dart +++ b/pkgs/collection/lib/wrappers.dart @@ -89,6 +89,8 @@ class DelegatingIterable implements Iterable { Set toSet() => _base.toSet(); Iterable where(bool test(E element)) => _base.where(test); + + String toString() => _base.toString(); } @@ -331,4 +333,6 @@ class DelegatingMap implements Map { V remove(Object key) => _base.remove(key); Iterable get values => _base.values; + + String toString() => _base.toString(); } diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index 875a70ae..86a0ddd1 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -37,6 +37,10 @@ abstract class Expector { noSuchMethod(Invocation m) => new _Equals(equals = getWrappedObject((m2) { testInvocations(m, m2); })); + + toString() => new _Equals(equals = getWrappedObject((m2) { + testInvocations(TO_STRING_INVOCATION, m2); + })); } // An object with a field called "equals", only introduced into the @@ -46,6 +50,27 @@ class _Equals { _Equals(this.equals); } +class SyntheticInvocation implements Invocation { + static const int METHOD = 0x00; + static const int GETTER = 0x01; + static const int SETTER = 0x02; + final Symbol memberName; + final List positionalArguments; + final Map namedArguments; + final int _type; + const SyntheticInvocation(this.memberName, + this.positionalArguments, + this.namedArguments, + this._type); + bool get isMethod => _type == METHOD; + + bool get isGetter => _type == GETTER; + + bool get isSetter => _type == SETTER; + + bool get isAccessor => isGetter || isSetter; +} + // Parameterization of noSuchMethod. class NSM { Function _action; @@ -53,11 +78,15 @@ class NSM { noSuchMethod(Invocation i) => _action(i); } +const TO_STRING_INVOCATION = const SyntheticInvocation( + #toString, const[], const{}, SyntheticInvocation.METHOD); + // LikeNSM, but has types Iterable, Set and List to allow it as // argument to DelegatingIterable/Set/List. class IterableNSM extends NSM implements Iterable, Set, List, Queue { IterableNSM(action(Invocation i)) : super(action); noSuchMethod(Invocation i) => super.noSuchMethod(i); // Silence warnings + toString() => super.noSuchMethod(TO_STRING_INVOCATION); } // Expector that wraps in DelegatingIterable. @@ -92,6 +121,7 @@ class QueueExpector extends Expector { class MapNSM extends NSM implements Map { MapNSM(action(Invocation i)) : super(action); noSuchMethod(Invocation i) => super.noSuchMethod(i); + toString() => super.noSuchMethod(TO_STRING_INVOCATION); } // Expector that wraps in DelegatingMap. @@ -146,6 +176,7 @@ void main() { expect.toList(growable: true).equals.toList(growable: true); expect.toList(growable: false).equals.toList(growable: false); expect.toSet().equals.toSet(); + expect.toString().equals.toString(); expect.where(func1).equals.where(func1); } @@ -231,6 +262,7 @@ void main() { expect.putIfAbsent(val, func0).equals.putIfAbsent(val, func0); expect.remove(val).equals.remove(val); expect.values.equals.values; + expect.toString().equals.toString(); } test("Iterable", () { From 813e01b18ac1f511189ee9fcc747abd753454086 Mon Sep 17 00:00:00 2001 From: "kevmoo@google.com" Date: Thu, 30 Jan 2014 21:19:16 +0000 Subject: [PATCH 010/235] pkg/collection: mark fields in wrappers as final R=lrn@google.com Review URL: https://codereview.chromium.org//143243005 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/collection@32173 260f80e4-7a28-3924-810f-c04153c831b5 --- pkgs/collection/lib/wrappers.dart | 5 +++-- pkgs/collection/pubspec.yaml | 2 +- 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/pkgs/collection/lib/wrappers.dart b/pkgs/collection/lib/wrappers.dart index 1097c3ef..b15a6bda 100644 --- a/pkgs/collection/lib/wrappers.dart +++ b/pkgs/collection/lib/wrappers.dart @@ -26,7 +26,7 @@ part "src/unmodifiable_wrappers.dart"; * iterable object. */ class DelegatingIterable implements Iterable { - Iterable _base; + final Iterable _base; /** * Create a wrapper that forwards operations to [base]. @@ -295,7 +295,8 @@ class DelegatingQueue extends DelegatingIterable implements Queue { * map object. */ class DelegatingMap implements Map { - Map _base; + final Map _base; + DelegatingMap(Map base) : _base = base; V operator [](Object key) => _base[key]; diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 6f9d2903..4c3c8f07 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 0.9.1 +version: 0.9.1-dev+1 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: http://www.dartlang.org From dcf02bae2ecb99ba71c870b51c6f4d8e021fcfe8 Mon Sep 17 00:00:00 2001 From: "kevmoo@google.com" Date: Wed, 26 Feb 2014 21:22:22 +0000 Subject: [PATCH 011/235] pkg/collection: fix version updated unittest max version removed unused import R=rnystrom@google.com Review URL: https://codereview.chromium.org//182153002 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/collection@33090 260f80e4-7a28-3924-810f-c04153c831b5 --- pkgs/collection/pubspec.yaml | 8 ++++---- pkgs/collection/test/priority_queue_test.dart | 1 - 2 files changed, 4 insertions(+), 5 deletions(-) diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 4c3c8f07..fb979a0d 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,9 +1,9 @@ name: collection -version: 0.9.1-dev+1 +version: 0.9.2-dev author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: http://www.dartlang.org -dev_dependencies: - unittest: ">=0.9.0 <0.10.0" environment: - sdk: ">=1.0.0 <2.0.0" + sdk: '>=1.0.0 <2.0.0' +dev_dependencies: + unittest: '>=0.9.0 <0.11.0' diff --git a/pkgs/collection/test/priority_queue_test.dart b/pkgs/collection/test/priority_queue_test.dart index 1040e1a0..703ab726 100644 --- a/pkgs/collection/test/priority_queue_test.dart +++ b/pkgs/collection/test/priority_queue_test.dart @@ -4,7 +4,6 @@ /// Tests priority queue implementations utilities. -import "dart:collection"; import "package:collection/priority_queue.dart"; import "package:unittest/unittest.dart"; From 4b7e1673865c304e2189d7c6e28e8f7f9ab10abe Mon Sep 17 00:00:00 2001 From: "kevmoo@google.com" Date: Tue, 29 Apr 2014 09:42:40 +0000 Subject: [PATCH 012/235] pkg/collection: define delegating collection constructors as const Allows creating a singleton const instance for common values R=lrn@google.com Review URL: https://codereview.chromium.org//252133002 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/collection@35517 260f80e4-7a28-3924-810f-c04153c831b5 --- pkgs/collection/lib/wrappers.dart | 10 +++++----- pkgs/collection/pubspec.yaml | 2 +- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/pkgs/collection/lib/wrappers.dart b/pkgs/collection/lib/wrappers.dart index b15a6bda..0fcc8c23 100644 --- a/pkgs/collection/lib/wrappers.dart +++ b/pkgs/collection/lib/wrappers.dart @@ -31,7 +31,7 @@ class DelegatingIterable implements Iterable { /** * Create a wrapper that forwards operations to [base]. */ - DelegatingIterable(Iterable base) : _base = base; + const DelegatingIterable(Iterable base) : _base = base; bool any(bool test(E element)) => _base.any(test); @@ -102,7 +102,7 @@ class DelegatingIterable implements Iterable { * list object. */ class DelegatingList extends DelegatingIterable implements List { - DelegatingList(List base) : super(base); + const DelegatingList(List base) : super(base); List get _listBase => _base; @@ -201,7 +201,7 @@ class DelegatingList extends DelegatingIterable implements List { * set object. */ class DelegatingSet extends DelegatingIterable implements Set { - DelegatingSet(Set base) : super(base); + const DelegatingSet(Set base) : super(base); Set get _setBase => _base; @@ -252,7 +252,7 @@ class DelegatingSet extends DelegatingIterable implements Set { * queue object. */ class DelegatingQueue extends DelegatingIterable implements Queue { - DelegatingQueue(Queue queue) : super(queue); + const DelegatingQueue(Queue queue) : super(queue); Queue get _baseQueue => _base; @@ -297,7 +297,7 @@ class DelegatingQueue extends DelegatingIterable implements Queue { class DelegatingMap implements Map { final Map _base; - DelegatingMap(Map base) : _base = base; + const DelegatingMap(Map base) : _base = base; V operator [](Object key) => _base[key]; diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index fb979a0d..58482cef 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 0.9.2-dev +version: 0.9.2 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: http://www.dartlang.org From c422a3ee92d038fb45b163fe9263abb083d32a7a Mon Sep 17 00:00:00 2001 From: "nweiz@google.com" Date: Wed, 21 May 2014 20:25:52 +0000 Subject: [PATCH 013/235] Add MapKeySet and MapValueSet to the collection package. These classes provide Set views that are implemented as Maps under the covers. BUG=18705 R=floitsch@google.com, lrn@google.com Review URL: https://codereview.chromium.org//277563007 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/collection@36447 260f80e4-7a28-3924-810f-c04153c831b5 --- pkgs/collection/CHANGELOG.md | 7 + pkgs/collection/lib/wrappers.dart | 248 +++++++++++++++- pkgs/collection/pubspec.yaml | 2 +- pkgs/collection/test/wrapper_test.dart | 377 +++++++++++++++++++++++++ 4 files changed, 623 insertions(+), 11 deletions(-) create mode 100644 pkgs/collection/CHANGELOG.md diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md new file mode 100644 index 00000000..e5a63812 --- /dev/null +++ b/pkgs/collection/CHANGELOG.md @@ -0,0 +1,7 @@ +## 0.9.3 + +* Add a `MapKeySet` class that exposes an unmodifiable `Set` view of a `Map`'s + keys. + +* Add a `MapValueSet` class that takes a function from values to keys and uses + it to expose a `Set` view of a `Map`'s values. diff --git a/pkgs/collection/lib/wrappers.dart b/pkgs/collection/lib/wrappers.dart index 0fcc8c23..c9e919d5 100644 --- a/pkgs/collection/lib/wrappers.dart +++ b/pkgs/collection/lib/wrappers.dart @@ -19,19 +19,15 @@ export "dart:collection" show UnmodifiableListView; part "src/unmodifiable_wrappers.dart"; /** - * Creates an [Iterable] that delegates all operations to a base iterable. + * A base class for delegating iterables. * - * This class can be used hide non-`Iterable` methods of an iterable object, - * or it can be extended to add extra functionality on top of an existing - * iterable object. + * Subclasses can provide a [_base] that should be delegated to. Unlike + * [DelegatingIterable], this allows the base to be created on demand. */ -class DelegatingIterable implements Iterable { - final Iterable _base; +abstract class _DelegatingIterableBase implements Iterable { + Iterable get _base; - /** - * Create a wrapper that forwards operations to [base]. - */ - const DelegatingIterable(Iterable base) : _base = base; + const _DelegatingIterableBase(); bool any(bool test(E element)) => _base.any(test); @@ -93,6 +89,22 @@ class DelegatingIterable implements Iterable { String toString() => _base.toString(); } +/** + * Creates an [Iterable] that delegates all operations to a base iterable. + * + * This class can be used hide non-`Iterable` methods of an iterable object, + * or it can be extended to add extra functionality on top of an existing + * iterable object. + */ +class DelegatingIterable extends _DelegatingIterableBase { + final Iterable _base; + + /** + * Create a wrapper that forwards operations to [base]. + */ + const DelegatingIterable(Iterable base) : _base = base; +} + /** * Creates a [List] that delegates all operations to a base list. @@ -337,3 +349,219 @@ class DelegatingMap implements Map { String toString() => _base.toString(); } + +/** + * An unmodifiable [Set] view of the keys of a [Map]. + * + * The set delegates all operations to the underlying map. + * + * A `Map` can only contain each key once, so its keys can always + * be viewed as a `Set` without any loss, even if the [Map.keys] + * getter only shows an [Iterable] view of the keys. + * + * Note that [lookup] is not supported for this set. + */ +class MapKeySet extends _DelegatingIterableBase + with UnmodifiableSetMixin { + final Map _baseMap; + + MapKeySet(Map base) : _baseMap = base; + + Iterable get _base => _baseMap.keys; + + bool contains(Object element) => _baseMap.containsKey(element); + + bool get isEmpty => _baseMap.isEmpty; + + bool get isNotEmpty => _baseMap.isNotEmpty; + + int get length => _baseMap.length; + + String toString() => "{${_base.join(', ')}}"; + + bool containsAll(Iterable other) => other.every(contains); + + /** + * Returns a new set with the the elements of [this] that are not in [other]. + * + * That is, the returned set contains all the elements of this [Set] that are + * not elements of [other] according to `other.contains`. + * + * Note that the returned set will use the default equality operation, which + * may be different than the equality operation [this] uses. + */ + Set difference(Set other) => + where((element) => !other.contains(element)).toSet(); + + /** + * Returns a new set which is the intersection between [this] and [other]. + * + * That is, the returned set contains all the elements of this [Set] that are + * also elements of [other] according to `other.contains`. + * + * Note that the returned set will use the default equality operation, which + * may be different than the equality operation [this] uses. + */ + Set intersection(Set other) => where(other.contains).toSet(); + + /** + * Throws an [UnsupportedError] since there's no corresponding method for + * [Map]s. + */ + E lookup(E element) => throw new UnsupportedError( + "MapKeySet doesn't support lookup()."); + + /** + * Returns a new set which contains all the elements of [this] and [other]. + * + * That is, the returned set contains all the elements of this [Set] and all + * the elements of [other]. + * + * Note that the returned set will use the default equality operation, which + * may be different than the equality operation [this] uses. + */ + Set union(Set other) => toSet()..addAll(other); +} + +/** + * Creates a modifiable [Set] view of the values of a [Map]. + * + * The `Set` view assumes that the keys of the `Map` can be uniquely determined + * from the values. The `keyForValue` function passed to the constructor finds + * the key for a single value. The `keyForValue` function should be consistent + * with equality. If `value1 == value2` then `keyForValue(value1)` and + * `keyForValue(value2)` should be considered equal keys by the underlying map, + * and vice versa. + * + * Modifying the set will modify the underlying map based on the key returned by + * `keyForValue`. + * + * If the `Map` contents are not compatible with the `keyForValue` function, the + * set will not work consistently, and may give meaningless responses or do + * inconsistent updates. + * + * This set can, for example, be used on a map from database record IDs to the + * records. It exposes the records as a set, and allows for writing both + * `recordSet.add(databaseRecord)` and `recordMap[id]`. + * + * Effectively, the map will act as a kind of index for the set. + */ +class MapValueSet extends _DelegatingIterableBase implements Set { + final Map _baseMap; + final Function _keyForValue; + + /** + * Creates a new [MapValueSet] based on [base]. + * + * [keyForValue] returns the key in the map that should be associated with the + * given value. The set's notion of equality is identical to the equality of + * the return values of [keyForValue]. + */ + MapValueSet(Map base, K keyForValue(V value)) + : _baseMap = base, + _keyForValue = keyForValue; + + Iterable get _base => _baseMap.values; + + bool contains(Object element) { + if (element != null && element is! V) return false; + return _baseMap.containsKey(_keyForValue(element)); + } + + bool get isEmpty => _baseMap.isEmpty; + + bool get isNotEmpty => _baseMap.isNotEmpty; + + int get length => _baseMap.length; + + String toString() => toSet().toString(); + + bool add(V value) { + K key = _keyForValue(value); + bool result = false; + _baseMap.putIfAbsent(key, () { + result = true; + return value; + }); + return result; + } + + void addAll(Iterable elements) => elements.forEach(add); + + void clear() => _baseMap.clear(); + + bool containsAll(Iterable other) => other.every(contains); + + /** + * Returns a new set with the the elements of [this] that are not in [other]. + * + * That is, the returned set contains all the elements of this [Set] that are + * not elements of [other] according to `other.contains`. + * + * Note that the returned set will use the default equality operation, which + * may be different than the equality operation [this] uses. + */ + Set difference(Set other) => + where((element) => !other.contains(element)).toSet(); + + /** + * Returns a new set which is the intersection between [this] and [other]. + * + * That is, the returned set contains all the elements of this [Set] that are + * also elements of [other] according to `other.contains`. + * + * Note that the returned set will use the default equality operation, which + * may be different than the equality operation [this] uses. + */ + Set intersection(Set other) => where(other.contains).toSet(); + + V lookup(V element) => _baseMap[_keyForValue(element)]; + + bool remove(Object value) { + if (value != null && value is! V) return false; + var key = _keyForValue(value); + if (!_baseMap.containsKey(key)) return false; + _baseMap.remove(key); + return true; + } + + void removeAll(Iterable elements) => elements.forEach(remove); + + void removeWhere(bool test(V element)) { + var toRemove = []; + _baseMap.forEach((key, value) { + if (test(value)) toRemove.add(key); + }); + toRemove.forEach(_baseMap.remove); + } + + void retainAll(Iterable elements) { + var valuesToRetain = new Set.identity(); + for (var element in elements) { + if (element != null && element is! V) continue; + var key = _keyForValue(element); + if (!_baseMap.containsKey(key)) continue; + valuesToRetain.add(_baseMap[key]); + } + + var keysToRemove = []; + _baseMap.forEach((k, v) { + if (!valuesToRetain.contains(v)) keysToRemove.add(k); + }); + keysToRemove.forEach(_baseMap.remove); + } + + void retainWhere(bool test(V element)) => + removeWhere((element) => !test(element)); + + /** + * Returns a new set which contains all the elements of [this] and [other]. + * + * That is, the returned set contains all the elements of this [Set] and all + * the elements of [other]. + * + * Note that the returned set will use the default equality operation, which + * may be different than the equality operation [this] uses. + */ + Set union(Set other) => toSet()..addAll(other); +} diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 58482cef..45cf9b79 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 0.9.2 +version: 0.9.3-dev author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: http://www.dartlang.org diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index 86a0ddd1..5858aaf5 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -265,6 +265,178 @@ void main() { expect.toString().equals.toString(); } + // Runs tests of Set behavior. + // + // [setUpSet] should return a set with two elements: "foo" and "bar". + void testTwoElementSet(Set setUpSet()) { + group("with two elements", () { + var set; + setUp(() => set = setUpSet()); + + test(".any", () { + expect(set.any((element) => element == "foo"), isTrue); + expect(set.any((element) => element == "baz"), isFalse); + }); + + test(".elementAt", () { + expect(set.elementAt(0), equals("foo")); + expect(set.elementAt(1), equals("bar")); + expect(() => set.elementAt(2), throwsRangeError); + }); + + test(".every", () { + expect(set.every((element) => element == "foo"), isFalse); + expect(set.every((element) => element is String), isTrue); + }); + + test(".expand", () { + expect(set.expand((element) { + return [element.substring(0, 1), element.substring(1)]; + }), equals(["f", "oo", "b", "ar"])); + }); + + test(".first", () { + expect(set.first, equals("foo")); + }); + + test(".firstWhere", () { + expect(set.firstWhere((element) => element is String), equals("foo")); + expect(set.firstWhere((element) => element.startsWith("b")), + equals("bar")); + expect(() => set.firstWhere((element) => element is int), + throwsStateError); + expect(set.firstWhere((element) => element is int, orElse: () => "baz"), + equals("baz")); + }); + + test(".fold", () { + expect(set.fold("start", (previous, element) => previous + element), + equals("startfoobar")); + }); + + test(".forEach", () { + var values = []; + set.forEach(values.add); + expect(values, equals(["foo", "bar"])); + }); + + test(".iterator", () { + var values = []; + for (var element in set) { + values.add(element); + } + expect(values, equals(["foo", "bar"])); + }); + + test(".join", () { + expect(set.join(", "), equals("foo, bar")); + }); + + test(".last", () { + expect(set.last, equals("bar")); + }); + + test(".lastWhere", () { + expect(set.lastWhere((element) => element is String), equals("bar")); + expect(set.lastWhere((element) => element.startsWith("f")), + equals("foo")); + expect(() => set.lastWhere((element) => element is int), + throwsStateError); + expect(set.lastWhere((element) => element is int, orElse: () => "baz"), + equals("baz")); + }); + + test(".map", () { + expect(set.map((element) => element.substring(1)), + equals(["oo", "ar"])); + }); + + test(".reduce", () { + expect(set.reduce((previous, element) => previous + element), + equals("foobar")); + }); + + test(".singleWhere", () { + expect(() => set.singleWhere((element) => element == "baz"), + throwsStateError); + expect(set.singleWhere((element) => element == "foo"), + "foo"); + expect(() => set.singleWhere((element) => element is String), + throwsStateError); + }); + + test(".skip", () { + expect(set.skip(0), equals(["foo", "bar"])); + expect(set.skip(1), equals(["bar"])); + expect(set.skip(2), equals([])); + }); + + test(".skipWhile", () { + expect(set.skipWhile((element) => element.startsWith("f")), + equals(["bar"])); + expect(set.skipWhile((element) => element.startsWith("z")), + equals(["foo", "bar"])); + expect(set.skipWhile((element) => element is String), + equals([])); + }); + + test(".take", () { + expect(set.take(0), equals([])); + expect(set.take(1), equals(["foo"])); + expect(set.take(2), equals(["foo", "bar"])); + }); + + test(".takeWhile", () { + expect(set.takeWhile((element) => element.startsWith("f")), + equals(["foo"])); + expect(set.takeWhile((element) => element.startsWith("z")), + equals([])); + expect(set.takeWhile((element) => element is String), + equals(["foo", "bar"])); + }); + + test(".toList", () { + expect(set.toList(), equals(["foo", "bar"])); + expect(() => set.toList(growable: false).add("baz"), + throwsUnsupportedError); + expect(set.toList()..add("baz"), equals(["foo", "bar", "baz"])); + }); + + test(".toSet", () { + expect(set.toSet(), equals(new Set.from(["foo", "bar"]))); + }); + + test(".where", () { + expect(set.where((element) => element.startsWith("f")), + equals(["foo"])); + expect(set.where((element) => element.startsWith("z")), equals([])); + expect(set.where((element) => element is String), + equals(["foo", "bar"])); + }); + + test(".containsAll", () { + expect(set.containsAll(["foo", "bar"]), isTrue); + expect(set.containsAll(["foo"]), isTrue); + expect(set.containsAll(["foo", "bar", "qux"]), isFalse); + }); + + test(".difference", () { + expect(set.difference(new Set.from(["foo", "baz"])), + equals(new Set.from(["bar"]))); + }); + + test(".intersection", () { + expect(set.intersection(new Set.from(["foo", "baz"])), + equals(new Set.from(["foo"]))); + }); + + test(".union", () { + expect(set.union(new Set.from(["foo", "baz"])), + equals(new Set.from(["foo", "bar", "baz"]))); + }); + }); + } + test("Iterable", () { testIterable(new IterableExpector()); }); @@ -284,4 +456,209 @@ void main() { test("Map", () { testMap(new MapExpector()); }); + + group("MapKeySet", () { + var map; + var set; + + setUp(() { + map = new Map(); + set = new MapKeySet(map); + }); + + testTwoElementSet(() { + map["foo"] = 1; + map["bar"] = 2; + return set; + }); + + test(".single", () { + expect(() => set.single, throwsStateError); + map["foo"] = 1; + expect(set.single, equals("foo")); + map["bar"] = 1; + expect(() => set.single, throwsStateError); + }); + + test(".toString", () { + expect(set.toString(), equals("{}")); + map["foo"] = 1; + map["bar"] = 2; + expect(set.toString(), equals("{foo, bar}")); + }); + + test(".contains", () { + expect(set.contains("foo"), isFalse); + map["foo"] = 1; + expect(set.contains("foo"), isTrue); + }); + + test(".isEmpty", () { + expect(set.isEmpty, isTrue); + map["foo"] = 1; + expect(set.isEmpty, isFalse); + }); + + test(".isNotEmpty", () { + expect(set.isNotEmpty, isFalse); + map["foo"] = 1; + expect(set.isNotEmpty, isTrue); + }); + + test(".length", () { + expect(set, hasLength(0)); + map["foo"] = 1; + expect(set, hasLength(1)); + map["bar"] = 2; + expect(set, hasLength(2)); + }); + + test("is unmodifiable", () { + expect(() => set.add("baz"), throwsUnsupportedError); + expect(() => set.addAll(["baz", "bang"]), throwsUnsupportedError); + expect(() => set.remove("foo"), throwsUnsupportedError); + expect(() => set.removeAll(["baz", "bang"]), throwsUnsupportedError); + expect(() => set.retainAll(["foo"]), throwsUnsupportedError); + expect(() => set.removeWhere((_) => true), throwsUnsupportedError); + expect(() => set.retainWhere((_) => true), throwsUnsupportedError); + expect(() => set.clear(), throwsUnsupportedError); + }); + }); + + group("MapValueSet", () { + var map; + var set; + + setUp(() { + map = new Map(); + set = new MapValueSet(map, + (string) => string.substring(0, 1)); + }); + + testTwoElementSet(() { + map["f"] = "foo"; + map["b"] = "bar"; + return set; + }); + + test(".single", () { + expect(() => set.single, throwsStateError); + map["f"] = "foo"; + expect(set.single, equals("foo")); + map["b"] = "bar"; + expect(() => set.single, throwsStateError); + }); + + test(".toString", () { + expect(set.toString(), equals("{}")); + map["f"] = "foo"; + map["b"] = "bar"; + expect(set.toString(), equals("{foo, bar}")); + }); + + test(".contains", () { + expect(set.contains("foo"), isFalse); + map["f"] = "foo"; + expect(set.contains("foo"), isTrue); + expect(set.contains("fblthp"), isTrue); + }); + + test(".isEmpty", () { + expect(set.isEmpty, isTrue); + map["f"] = "foo"; + expect(set.isEmpty, isFalse); + }); + + test(".isNotEmpty", () { + expect(set.isNotEmpty, isFalse); + map["f"] = "foo"; + expect(set.isNotEmpty, isTrue); + }); + + test(".length", () { + expect(set, hasLength(0)); + map["f"] = "foo"; + expect(set, hasLength(1)); + map["b"] = "bar"; + expect(set, hasLength(2)); + }); + + test(".lookup", () { + map["f"] = "foo"; + expect(set.lookup("fblthp"), equals("foo")); + expect(set.lookup("bar"), isNull); + }); + + test(".add", () { + set.add("foo"); + set.add("bar"); + expect(map, equals({"f": "foo", "b": "bar"})); + }); + + test(".addAll", () { + set.addAll(["foo", "bar"]); + expect(map, equals({"f": "foo", "b": "bar"})); + }); + + test(".clear", () { + map["f"] = "foo"; + map["b"] = "bar"; + set.clear(); + expect(map, isEmpty); + }); + + test(".remove", () { + map["f"] = "foo"; + map["b"] = "bar"; + set.remove("fblthp"); + expect(map, equals({"b": "bar"})); + }); + + test(".removeAll", () { + map["f"] = "foo"; + map["b"] = "bar"; + map["q"] = "qux"; + set.removeAll(["fblthp", "qux"]); + expect(map, equals({"b": "bar"})); + }); + + test(".removeWhere", () { + map["f"] = "foo"; + map["b"] = "bar"; + map["q"] = "qoo"; + set.removeWhere((element) => element.endsWith("o")); + expect(map, equals({"b": "bar"})); + }); + + test(".retainAll", () { + map["f"] = "foo"; + map["b"] = "bar"; + map["q"] = "qux"; + set.retainAll(["fblthp", "qux"]); + expect(map, equals({"f": "foo", "q": "qux"})); + }); + + test(".retainAll respects an unusual notion of equality", () { + map = new HashMap( + equals: (value1, value2) => + value1.toLowerCase() == value2.toLowerCase(), + hashCode: (value) => value.toLowerCase().hashCode); + set = new MapValueSet(map, + (string) => string.substring(0, 1)); + + map["f"] = "foo"; + map["B"] = "bar"; + map["Q"] = "qux"; + set.retainAll(["fblthp", "qux"]); + expect(map, equals({"f": "foo", "Q": "qux"})); + }); + + test(".retainWhere", () { + map["f"] = "foo"; + map["b"] = "bar"; + map["q"] = "qoo"; + set.retainWhere((element) => element.endsWith("o")); + expect(map, equals({"f": "foo", "q": "qoo"})); + }); + }); } From dbb6157144ae8d79750d31d57b3ec476b3426e34 Mon Sep 17 00:00:00 2001 From: "lrn@google.com" Date: Thu, 22 May 2014 08:29:59 +0000 Subject: [PATCH 014/235] The toSet operation returns a new Set with the same equality and iteration behavior, and with the same elements. R=floitsch@google.com, jmesserly@google.com, sgjesse@google.com Review URL: https://codereview.chromium.org//288103003 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/collection@36473 260f80e4-7a28-3924-810f-c04153c831b5 --- pkgs/collection/lib/wrappers.dart | 2 ++ pkgs/collection/pubspec.yaml | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/pkgs/collection/lib/wrappers.dart b/pkgs/collection/lib/wrappers.dart index c9e919d5..20341742 100644 --- a/pkgs/collection/lib/wrappers.dart +++ b/pkgs/collection/lib/wrappers.dart @@ -254,6 +254,8 @@ class DelegatingSet extends DelegatingIterable implements Set { } Set union(Set other) => _setBase.union(other); + + Set toSet() => new DelegatingSet(_setBase.toSet()); } /** diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 45cf9b79..e0d1097f 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 0.9.3-dev +version: 0.9.3 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: http://www.dartlang.org From 9ca45ed51ca0b13a9da73d949738ac78515b76bc Mon Sep 17 00:00:00 2001 From: "nweiz@google.com" Date: Fri, 30 May 2014 00:49:53 +0000 Subject: [PATCH 015/235] Fix analyzer hints in pkg/collection. I plan to release collection 0.9.3+1 once this lands. R=lrn@google.com Review URL: https://codereview.chromium.org//308653004 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/collection@36814 260f80e4-7a28-3924-810f-c04153c831b5 --- pkgs/collection/CHANGELOG.md | 4 +++ .../lib/src/unmodifiable_wrappers.dart | 26 ++++++++----------- pkgs/collection/pubspec.yaml | 2 +- 3 files changed, 16 insertions(+), 16 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index e5a63812..6c1c5545 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 0.9.3+1 + +* Fix all analyzer hints. + ## 0.9.3 * Add a `MapKeySet` class that exposes an unmodifiable `Set` view of a `Map`'s diff --git a/pkgs/collection/lib/src/unmodifiable_wrappers.dart b/pkgs/collection/lib/src/unmodifiable_wrappers.dart index 022bbfe1..72b189cf 100644 --- a/pkgs/collection/lib/src/unmodifiable_wrappers.dart +++ b/pkgs/collection/lib/src/unmodifiable_wrappers.dart @@ -36,7 +36,7 @@ class NonGrowableListView extends DelegatingList * change the List's length. */ abstract class NonGrowableListMixin implements List { - static void _throw() { + static _throw() { throw new UnsupportedError( "Cannot change the length of a fixed-length list"); } @@ -51,9 +51,7 @@ abstract class NonGrowableListMixin implements List { * Throws an [UnsupportedError]; * operations that change the length of the list are disallowed. */ - bool add(E value) { - _throw(); - } + bool add(E value) => _throw(); /** * Throws an [UnsupportedError]; @@ -77,19 +75,19 @@ abstract class NonGrowableListMixin implements List { * Throws an [UnsupportedError]; * operations that change the length of the list are disallowed. */ - bool remove(Object value) { _throw(); } + bool remove(Object value) => _throw(); /** * Throws an [UnsupportedError]; * operations that change the length of the list are disallowed. */ - E removeAt(int index) { _throw(); } + E removeAt(int index) => _throw(); /** * Throws an [UnsupportedError]; * operations that change the length of the list are disallowed. */ - E removeLast() { _throw(); } + E removeLast() => _throw(); /** * Throws an [UnsupportedError]; @@ -141,7 +139,7 @@ class UnmodifiableSetView extends DelegatingSet * change the Set. */ abstract class UnmodifiableSetMixin implements Set { - void _throw() { + _throw() { throw new UnsupportedError("Cannot modify an unmodifiable Set"); } @@ -149,9 +147,7 @@ abstract class UnmodifiableSetMixin implements Set { * Throws an [UnsupportedError]; * operations that change the set are disallowed. */ - bool add(E value) { - _throw(); - } + bool add(E value) => _throw(); /** * Throws an [UnsupportedError]; @@ -163,7 +159,7 @@ abstract class UnmodifiableSetMixin implements Set { * Throws an [UnsupportedError]; * operations that change the set are disallowed. */ - bool remove(Object value) { _throw(); } + bool remove(Object value) => _throw(); /** * Throws an [UnsupportedError]; @@ -215,7 +211,7 @@ class UnmodifiableMapView extends DelegatingMap * change the Map. */ abstract class UnmodifiableMapMixin implements Map { - static void _throw() { + static _throw() { throw new UnsupportedError("Cannot modify an unmodifiable Map"); } @@ -229,7 +225,7 @@ abstract class UnmodifiableMapMixin implements Map { * Throws an [UnsupportedError]; * operations that change the map are disallowed. */ - V putIfAbsent(K key, V ifAbsent()) { _throw(); } + V putIfAbsent(K key, V ifAbsent()) => _throw(); /** * Throws an [UnsupportedError]; @@ -241,7 +237,7 @@ abstract class UnmodifiableMapMixin implements Map { * Throws an [UnsupportedError]; * operations that change the map are disallowed. */ - V remove(K key) { _throw(); } + V remove(K key) => _throw(); /** * Throws an [UnsupportedError]; diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index e0d1097f..80b09726 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 0.9.3 +version: 0.9.3+1 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: http://www.dartlang.org From e379f71e36c6f0d00c86203168dc3a12275938e8 Mon Sep 17 00:00:00 2001 From: "lrn@google.com" Date: Thu, 12 Jun 2014 08:11:22 +0000 Subject: [PATCH 016/235] Add "last" setter to List. This allows assigning directly as `list.last = value` instead of having to use the longer `list[list.length - 1] = value`. It's just an abbreviation, like `list.last` is for reading. If you use a List as a stack (which is a perfectly good use of it), modifying the last element like this is a natural operation. R=sgjesse@google.com Review URL: https://codereview.chromium.org//315173005 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/collection@37255 260f80e4-7a28-3924-810f-c04153c831b5 --- pkgs/collection/lib/wrappers.dart | 6 +++++- pkgs/collection/pubspec.yaml | 2 +- pkgs/collection/test/wrapper_test.dart | 1 + 3 files changed, 7 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/lib/wrappers.dart b/pkgs/collection/lib/wrappers.dart index 20341742..7723d58f 100644 --- a/pkgs/collection/lib/wrappers.dart +++ b/pkgs/collection/lib/wrappers.dart @@ -124,6 +124,10 @@ class DelegatingList extends DelegatingIterable implements List { _listBase[index] = value; } + void set last(E value) { + _listBase.last = value; + } + void add(E value) { _listBase.add(value); } @@ -427,7 +431,7 @@ class MapKeySet extends _DelegatingIterableBase /** * Creates a modifiable [Set] view of the values of a [Map]. - * + * * The `Set` view assumes that the keys of the `Map` can be uniquely determined * from the values. The `keyForValue` function passed to the constructor finds * the key for a single value. The `keyForValue` function should be consistent diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 80b09726..0ae4b42e 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 0.9.3+1 +version: 1.0.0-dev author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: http://www.dartlang.org diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index 5858aaf5..414c8f74 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -197,6 +197,7 @@ void main() { expect.indexOf(val, 4).equals.indexOf(val, 4); expect.insert(4, val).equals.insert(4, val); expect.insertAll(4, [val]).equals.insertAll(4, [val]); + (expect..last = 5).equals.last = 5; expect.lastIndexOf(val, null).equals.lastIndexOf(val); expect.lastIndexOf(val, 4).equals.lastIndexOf(val, 4); (expect..length = 4).equals.length = 4; From f457d7f4a2fe20a130285265b6989a95ca3083b1 Mon Sep 17 00:00:00 2001 From: "lrn@google.com" Date: Fri, 13 Jun 2014 09:40:22 +0000 Subject: [PATCH 017/235] Revert "Add "last" setter to List." After discussion, we decided not to change the List interface for something that is just a convenience. Also revert "Mark pkgbuild/pkg/collection as failing when using repository packages" R=sgjesse@google.com Review URL: https://codereview.chromium.org//331833003 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/collection@37307 260f80e4-7a28-3924-810f-c04153c831b5 --- pkgs/collection/lib/wrappers.dart | 6 +----- pkgs/collection/pubspec.yaml | 2 +- pkgs/collection/test/wrapper_test.dart | 1 - 3 files changed, 2 insertions(+), 7 deletions(-) diff --git a/pkgs/collection/lib/wrappers.dart b/pkgs/collection/lib/wrappers.dart index 7723d58f..20341742 100644 --- a/pkgs/collection/lib/wrappers.dart +++ b/pkgs/collection/lib/wrappers.dart @@ -124,10 +124,6 @@ class DelegatingList extends DelegatingIterable implements List { _listBase[index] = value; } - void set last(E value) { - _listBase.last = value; - } - void add(E value) { _listBase.add(value); } @@ -431,7 +427,7 @@ class MapKeySet extends _DelegatingIterableBase /** * Creates a modifiable [Set] view of the values of a [Map]. - * + * * The `Set` view assumes that the keys of the `Map` can be uniquely determined * from the values. The `keyForValue` function passed to the constructor finds * the key for a single value. The `keyForValue` function should be consistent diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 0ae4b42e..80b09726 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.0.0-dev +version: 0.9.3+1 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: http://www.dartlang.org diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index 414c8f74..5858aaf5 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -197,7 +197,6 @@ void main() { expect.indexOf(val, 4).equals.indexOf(val, 4); expect.insert(4, val).equals.insert(4, val); expect.insertAll(4, [val]).equals.insertAll(4, [val]); - (expect..last = 5).equals.last = 5; expect.lastIndexOf(val, null).equals.lastIndexOf(val); expect.lastIndexOf(val, 4).equals.lastIndexOf(val, 4); (expect..length = 4).equals.length = 4; From c5ff020910881d63be84fe81db82e6353d1537a1 Mon Sep 17 00:00:00 2001 From: "nweiz@google.com" Date: Tue, 1 Jul 2014 21:22:01 +0000 Subject: [PATCH 018/235] Add a CanonicalizedMap class to pkg/collection. BUG=18708 R=lrn@google.com Review URL: https://codereview.chromium.org//350183010 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/collection@37908 260f80e4-7a28-3924-810f-c04153c831b5 --- pkgs/collection/CHANGELOG.md | 5 + pkgs/collection/lib/collection.dart | 1 + .../collection/lib/src/canonicalized_map.dart | 115 ++++++++++++ pkgs/collection/lib/src/utils.dart | 13 ++ pkgs/collection/lib/wrappers.dart | 1 + pkgs/collection/pubspec.yaml | 2 +- .../test/canonicalized_map_test.dart | 166 ++++++++++++++++++ 7 files changed, 302 insertions(+), 1 deletion(-) create mode 100644 pkgs/collection/lib/src/canonicalized_map.dart create mode 100644 pkgs/collection/lib/src/utils.dart create mode 100644 pkgs/collection/test/canonicalized_map_test.dart diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 6c1c5545..1ed9863d 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,8 @@ +## 0.9.4 + +* Add a `CanonicalizedMap` class that canonicalizes its keys to provide a custom + equality relation. + ## 0.9.3+1 * Fix all analyzer hints. diff --git a/pkgs/collection/lib/collection.dart b/pkgs/collection/lib/collection.dart index d6400716..d24dd393 100644 --- a/pkgs/collection/lib/collection.dart +++ b/pkgs/collection/lib/collection.dart @@ -21,4 +21,5 @@ export "algorithms.dart"; export "equality.dart"; export "iterable_zip.dart"; export "priority_queue.dart"; +export "src/canonicalized_map.dart"; export "wrappers.dart"; diff --git a/pkgs/collection/lib/src/canonicalized_map.dart b/pkgs/collection/lib/src/canonicalized_map.dart new file mode 100644 index 00000000..f1cd8591 --- /dev/null +++ b/pkgs/collection/lib/src/canonicalized_map.dart @@ -0,0 +1,115 @@ +// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +library dart.pkg.collection.canonicalized_map; + +import 'dart:collection'; + +import 'utils.dart'; + +/** + * A map whose keys are converted to canonical values of type `C`. + * + * This is useful for using case-insensitive String keys, for example. It's more + * efficient than a [LinkedHashMap] with a custom equality operator because it + * only canonicalizes each key once, rather than doing so for each comparison. + * + * By default, `null` is allowed as a key. It can be forbidden via the + * `isValidKey` parameter. + */ +class CanonicalizedMap implements Map { + final Function _canonicalize; + + final Function _isValidKeyFn; + + final _base = new Map>(); + + /** + * Creates an empty canonicalized map. + * + * The [canonicalize] function should return the canonical value for the given + * key. Keys with the same canonical value are considered equivalent. + * + * The [isValidKey] function is called before calling [canonicalize] for + * methods that take arbitrary objects. It can be used to filter out keys that + * can't be canonicalized. + */ + CanonicalizedMap(C canonicalize(K key), {bool isValidKey(K key)}) + : _canonicalize = canonicalize, + _isValidKeyFn = isValidKey; + + /** + * Creates a canonicalized map that is initialized with the key/value pairs of + * [other]. + * + * The [canonicalize] function should return the canonical value for the given + * key. Keys with the same canonical value are considered equivalent. + * + * The [isValidKey] function is called before calling [canonicalize] for + * methods that take arbitrary objects. It can be used to filter out keys that + * can't be canonicalized. + */ + CanonicalizedMap.from(Map other, C canonicalize(K key), + {bool isValidKey(K key)}) + : _canonicalize = canonicalize, + _isValidKeyFn = isValidKey { + addAll(other); + } + + V operator [](Object key) { + if (!_isValidKey(key)) return null; + var pair = _base[_canonicalize(key)]; + return pair == null ? null : pair.last; + } + + void operator []=(K key, V value) { + _base[_canonicalize(key)] = new Pair(key, value); + } + + void addAll(Map other) { + other.forEach((key, value) => this[key] = value); + } + + void clear() { + _base.clear(); + } + + bool containsKey(Object key) { + if (!_isValidKey(key)) return false; + return _base.containsKey(_canonicalize(key)); + } + + bool containsValue(Object value) => + _base.values.any((pair) => pair.last == value); + + void forEach(void f(K key, V value)) { + _base.forEach((key, pair) => f(pair.first, pair.last)); + } + + bool get isEmpty => _base.isEmpty; + + bool get isNotEmpty => _base.isNotEmpty; + + Iterable get keys => _base.values.map((pair) => pair.first); + + int get length => _base.length; + + V putIfAbsent(K key, V ifAbsent()) { + return _base.putIfAbsent(_canonicalize(key), + () => new Pair(key, ifAbsent())).last; + } + + V remove(Object key) { + if (!_isValidKey(key)) return null; + var pair = _base.remove(_canonicalize(key)); + return pair == null ? null : pair.last; + } + + Iterable get values => _base.values.map((pair) => pair.last); + + String toString() => Maps.mapToString(this); + + bool _isValidKey(Object key) => (key == null || key is K) && + (_isValidKeyFn == null || _isValidKeyFn(key)); +} diff --git a/pkgs/collection/lib/src/utils.dart b/pkgs/collection/lib/src/utils.dart new file mode 100644 index 00000000..c9c75377 --- /dev/null +++ b/pkgs/collection/lib/src/utils.dart @@ -0,0 +1,13 @@ +// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +library dart.pkg.collection.utils; + +/// A pair of values. +class Pair { + E first; + F last; + + Pair(this.first, this.last); +} diff --git a/pkgs/collection/lib/wrappers.dart b/pkgs/collection/lib/wrappers.dart index 20341742..509a966d 100644 --- a/pkgs/collection/lib/wrappers.dart +++ b/pkgs/collection/lib/wrappers.dart @@ -16,6 +16,7 @@ import "dart:math" show Random; export "dart:collection" show UnmodifiableListView; +export "src/canonicalized_map.dart"; part "src/unmodifiable_wrappers.dart"; /** diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 80b09726..3d484479 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 0.9.3+1 +version: 0.9.4 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: http://www.dartlang.org diff --git a/pkgs/collection/test/canonicalized_map_test.dart b/pkgs/collection/test/canonicalized_map_test.dart new file mode 100644 index 00000000..17937770 --- /dev/null +++ b/pkgs/collection/test/canonicalized_map_test.dart @@ -0,0 +1,166 @@ +// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import "package:collection/collection.dart"; +import "package:unittest/unittest.dart"; + +void main() { + group("with an empty canonicalized map", () { + var map; + setUp(() { + map = new CanonicalizedMap(int.parse, + isValidKey: new RegExp(r"^\d+$").hasMatch); + }); + + test("canonicalizes keys on set and get", () { + map["1"] = "value"; + expect(map["01"], equals("value")); + }); + + test("get returns null for uncanonicalizable key", () { + expect(map["foo"], isNull); + }); + + test("canonicalizes keys for addAll", () { + map.addAll({ + "1": "value 1", + "2": "value 2", + "3": "value 3" + }); + expect(map["01"], equals("value 1")); + expect(map["02"], equals("value 2")); + expect(map["03"], equals("value 3")); + }); + + test("uses the final value for addAll collisions", () { + map.addAll({ + "1": "value 1", + "01": "value 2", + "001": "value 3" + }); + expect(map.length, equals(1)); + expect(map["0001"], equals("value 3")); + }); + + test("clear clears the map", () { + map.addAll({ + "1": "value 1", + "2": "value 2", + "3": "value 3" + }); + expect(map, isNot(isEmpty)); + map.clear(); + expect(map, isEmpty); + }); + + test("canonicalizes keys for containsKey", () { + map["1"] = "value"; + expect(map.containsKey("01"), isTrue); + expect(map.containsKey("2"), isFalse); + }); + + test("containsKey returns false for uncanonicalizable key", () { + expect(map.containsKey("foo"), isFalse); + }); + + test("canonicalizes keys for putIfAbsent", () { + map["1"] = "value"; + expect(map.putIfAbsent("01", () => throw "shouldn't run"), + equals("value")); + expect(map.putIfAbsent("2", () => "new value"), equals("new value")); + }); + + test("canonicalizes keys for remove", () { + map["1"] = "value"; + expect(map.remove("2"), isNull); + expect(map.remove("01"), equals("value")); + expect(map, isEmpty); + }); + + test("remove returns null for uncanonicalizable key", () { + expect(map.remove("foo"), isNull); + }); + + test("containsValue returns whether a value is in the map", () { + map["1"] = "value"; + expect(map.containsValue("value"), isTrue); + expect(map.containsValue("not value"), isFalse); + }); + + test("isEmpty returns whether the map is empty", () { + expect(map.isEmpty, isTrue); + map["1"] = "value"; + expect(map.isEmpty, isFalse); + map.remove("01"); + expect(map.isEmpty, isTrue); + }); + + test("isNotEmpty returns whether the map isn't empty", () { + expect(map.isNotEmpty, isFalse); + map["1"] = "value"; + expect(map.isNotEmpty, isTrue); + map.remove("01"); + expect(map.isNotEmpty, isFalse); + }); + + test("length returns the number of pairs in the map", () { + expect(map.length, equals(0)); + map["1"] = "value 1"; + expect(map.length, equals(1)); + map["01"] = "value 01"; + expect(map.length, equals(1)); + map["02"] = "value 02"; + expect(map.length, equals(2)); + }); + + test("uses original keys for keys", () { + map["001"] = "value 1"; + map["02"] = "value 2"; + expect(map.keys, equals(["001", "02"])); + }); + + test("uses original keys for forEach", () { + map["001"] = "value 1"; + map["02"] = "value 2"; + + var keys = []; + map.forEach((key, value) => keys.add(key)); + expect(keys, equals(["001", "02"])); + }); + + test("values returns all values in the map", () { + map.addAll({ + "1": "value 1", + "01": "value 01", + "2": "value 2", + "03": "value 03" + }); + + expect(map.values, equals(["value 01", "value 2", "value 03"])); + }); + }); + + group("CanonicalizedMap.from", () { + test("canonicalizes its keys", () { + var map = new CanonicalizedMap.from({ + "1": "value 1", + "2": "value 2", + "3": "value 3" + }, int.parse); + expect(map["01"], equals("value 1")); + expect(map["02"], equals("value 2")); + expect(map["03"], equals("value 3")); + }); + + test("uses the final value for collisions", () { + var map = new CanonicalizedMap.from({ + "1": "value 1", + "01": "value 2", + "001": "value 3" + }, int.parse); + expect(map.length, equals(1)); + expect(map["0001"], equals("value 3")); + }); + }); +} From ba2e6a6f7b48746683d544ef2fec1a53a6311b84 Mon Sep 17 00:00:00 2001 From: "lrn@google.com" Date: Fri, 22 Aug 2014 08:52:09 +0000 Subject: [PATCH 019/235] Update dart:collection to version 1.0.0 R=sgjesse@google.com Review URL: https://codereview.chromium.org//463333004 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/collection@39484 260f80e4-7a28-3924-810f-c04153c831b5 --- pkgs/collection/pubspec.yaml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 3d484479..9ec80f45 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,9 +1,9 @@ name: collection -version: 0.9.4 +version: 1.0.0 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: http://www.dartlang.org environment: - sdk: '>=1.0.0 <2.0.0' + sdk: '>=1.5.0 <2.0.0' dev_dependencies: unittest: '>=0.9.0 <0.11.0' From 4c37dfddf5c4d0d9fec7f17a7efdbdfa27e70876 Mon Sep 17 00:00:00 2001 From: "nweiz@google.com" Date: Mon, 3 Nov 2014 20:39:26 +0000 Subject: [PATCH 020/235] Add a QueueList class to the collection package. This class is based on the ListQueue implementation and implements both the Queue and List interfaces. R=lrn@google.com Review URL: https://codereview.chromium.org//660373002 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/collection@41467 260f80e4-7a28-3924-810f-c04153c831b5 --- pkgs/collection/CHANGELOG.md | 4 + pkgs/collection/lib/collection.dart | 1 + pkgs/collection/lib/src/queue_list.dart | 231 ++++++++++++++++++ pkgs/collection/pubspec.yaml | 2 +- pkgs/collection/test/queue_list_test.dart | 276 ++++++++++++++++++++++ 5 files changed, 513 insertions(+), 1 deletion(-) create mode 100644 pkgs/collection/lib/src/queue_list.dart create mode 100644 pkgs/collection/test/queue_list_test.dart diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 1ed9863d..6742b4c2 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.1.0 + +* Add a `QueueList` class that implements both `Queue` and `List`. + ## 0.9.4 * Add a `CanonicalizedMap` class that canonicalizes its keys to provide a custom diff --git a/pkgs/collection/lib/collection.dart b/pkgs/collection/lib/collection.dart index d24dd393..45d38672 100644 --- a/pkgs/collection/lib/collection.dart +++ b/pkgs/collection/lib/collection.dart @@ -22,4 +22,5 @@ export "equality.dart"; export "iterable_zip.dart"; export "priority_queue.dart"; export "src/canonicalized_map.dart"; +export "src/queue_list.dart"; export "wrappers.dart"; diff --git a/pkgs/collection/lib/src/queue_list.dart b/pkgs/collection/lib/src/queue_list.dart new file mode 100644 index 00000000..0ef888f9 --- /dev/null +++ b/pkgs/collection/lib/src/queue_list.dart @@ -0,0 +1,231 @@ +// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import 'dart:collection'; + +/** + * A class that efficiently implements both [Queue] and [List]. + */ +// TODO(nweiz): Currently this code is copied almost verbatim from +// dart:collection. The only changes are to implement List and to remove methods +// that are redundant with ListMixin. Remove or simplify it when issue 21330 is +// fixed. +class QueueList extends Object with ListMixin implements Queue { + static const int _INITIAL_CAPACITY = 8; + List _table; + int _head; + int _tail; + + /** + * Create an empty queue. + * + * If [initialCapacity] is given, prepare the queue for at least that many + * elements. + */ + QueueList([int initialCapacity]) : _head = 0, _tail = 0 { + if (initialCapacity == null || initialCapacity < _INITIAL_CAPACITY) { + initialCapacity = _INITIAL_CAPACITY; + } else if (!_isPowerOf2(initialCapacity)) { + initialCapacity = _nextPowerOf2(initialCapacity); + } + assert(_isPowerOf2(initialCapacity)); + _table = new List(initialCapacity); + } + + /** + * Create a queue initially containing the elements of [source]. + */ + factory QueueList.from(Iterable source) { + if (source is List) { + int length = source.length; + QueueList queue = new QueueList(length + 1); + assert(queue._table.length > length); + List sourceList = source; + queue._table.setRange(0, length, sourceList, 0); + queue._tail = length; + return queue; + } else { + return new QueueList()..addAll(source); + } + } + + // Collection interface. + + void add(E element) { + _add(element); + } + + void addAll(Iterable elements) { + if (elements is List) { + List list = elements; + int addCount = list.length; + int length = this.length; + if (length + addCount >= _table.length) { + _preGrow(length + addCount); + // After preGrow, all elements are at the start of the list. + _table.setRange(length, length + addCount, list, 0); + _tail += addCount; + } else { + // Adding addCount elements won't reach _head. + int endSpace = _table.length - _tail; + if (addCount < endSpace) { + _table.setRange(_tail, _tail + addCount, list, 0); + _tail += addCount; + } else { + int preSpace = addCount - endSpace; + _table.setRange(_tail, _tail + endSpace, list, 0); + _table.setRange(0, preSpace, list, endSpace); + _tail = preSpace; + } + } + } else { + for (E element in elements) _add(element); + } + } + + String toString() => IterableBase.iterableToFullString(this, "{", "}"); + + // Queue interface. + + void addLast(E element) { _add(element); } + + void addFirst(E element) { + _head = (_head - 1) & (_table.length - 1); + _table[_head] = element; + if (_head == _tail) _grow(); + } + + E removeFirst() { + if (_head == _tail) throw new StateError("No element"); + E result = _table[_head]; + _table[_head] = null; + _head = (_head + 1) & (_table.length - 1); + return result; + } + + E removeLast() { + if (_head == _tail) throw new StateError("No element"); + _tail = (_tail - 1) & (_table.length - 1); + E result = _table[_tail]; + _table[_tail] = null; + return result; + } + + // List interface. + + int get length => (_tail - _head) & (_table.length - 1); + + void set length(int value) { + if (value < 0) throw new RangeError("Length $value may not be negative."); + + int delta = value - length; + if (delta >= 0) { + if (_table.length <= value) { + _preGrow(value); + } + _tail = (_tail + delta) & (_table.length - 1); + return; + } + + int newTail = _tail + delta; // [delta] is negative. + if (newTail >= 0) { + _table.fillRange(newTail, _tail, null); + } else { + newTail += _table.length; + _table.fillRange(0, _tail, null); + _table.fillRange(newTail, _table.length, null); + } + _tail = newTail; + } + + E operator [](int index) { + if (index < 0 || index >= length) { + throw new RangeError("Index $index must be in the range [0..$length)."); + } + + return _table[(_head + index) & (_table.length - 1)]; + } + + void operator[]=(int index, E value) { + if (index < 0 || index >= length) { + throw new RangeError("Index $index must be in the range [0..$length)."); + } + + _table[(_head + index) & (_table.length - 1)] = value; + } + + // Internal helper functions. + + /** + * Whether [number] is a power of two. + * + * Only works for positive numbers. + */ + static bool _isPowerOf2(int number) => (number & (number - 1)) == 0; + + /** + * Rounds [number] up to the nearest power of 2. + * + * If [number] is a power of 2 already, it is returned. + * + * Only works for positive numbers. + */ + static int _nextPowerOf2(int number) { + assert(number > 0); + number = (number << 1) - 1; + for(;;) { + int nextNumber = number & (number - 1); + if (nextNumber == 0) return number; + number = nextNumber; + } + } + + /** Adds element at end of queue. Used by both [add] and [addAll]. */ + void _add(E element) { + _table[_tail] = element; + _tail = (_tail + 1) & (_table.length - 1); + if (_head == _tail) _grow(); + } + + /** + * Grow the table when full. + */ + void _grow() { + List newTable = new List(_table.length * 2); + int split = _table.length - _head; + newTable.setRange(0, split, _table, _head); + newTable.setRange(split, split + _head, _table, 0); + _head = 0; + _tail = _table.length; + _table = newTable; + } + + int _writeToList(List target) { + assert(target.length >= length); + if (_head <= _tail) { + int length = _tail - _head; + target.setRange(0, length, _table, _head); + return length; + } else { + int firstPartSize = _table.length - _head; + target.setRange(0, firstPartSize, _table, _head); + target.setRange(firstPartSize, firstPartSize + _tail, _table, 0); + return _tail + firstPartSize; + } + } + + /** Grows the table even if it is not full. */ + void _preGrow(int newElementCount) { + assert(newElementCount >= length); + + // Add 1.5x extra room to ensure that there's room for more elements after + // expansion. + newElementCount += newElementCount >> 1; + int newCapacity = _nextPowerOf2(newElementCount); + List newTable = new List(newCapacity); + _tail = _writeToList(newTable); + _table = newTable; + _head = 0; + } +} diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 9ec80f45..b4396b93 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.0.0 +version: 1.1.0 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: http://www.dartlang.org diff --git a/pkgs/collection/test/queue_list_test.dart b/pkgs/collection/test/queue_list_test.dart new file mode 100644 index 00000000..6b213c8d --- /dev/null +++ b/pkgs/collection/test/queue_list_test.dart @@ -0,0 +1,276 @@ +// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import "package:collection/collection.dart"; +import "package:unittest/unittest.dart"; + +void main() { + group("new QueueList()", () { + test("creates an empty QueueList", () { + expect(new QueueList(), isEmpty); + }); + + test("takes an initial capacity", () { + expect(new QueueList(100), isEmpty); + }); + }); + + test("new QueueList.from() copies the contents of an iterable", () { + expect(new QueueList.from([1, 2, 3].skip(1)), equals([2, 3])); + }); + + group("add()", () { + test("adds an element to the end of the queue", () { + var queue = new QueueList.from([1, 2, 3]); + queue.add(4); + expect(queue, equals([1, 2, 3, 4])); + }); + + test("expands a full queue", () { + var queue = atCapacity(); + queue.add(8); + expect(queue, equals([1, 2, 3, 4, 5, 6, 7, 8])); + }); + }); + + group("addAll()", () { + test("adds elements to the end of the queue", () { + var queue = new QueueList.from([1, 2, 3]); + queue.addAll([4, 5, 6]); + expect(queue, equals([1, 2, 3, 4, 5, 6])); + }); + + test("expands a full queue", () { + var queue = atCapacity(); + queue.addAll([8, 9]); + expect(queue, equals([1, 2, 3, 4, 5, 6, 7, 8, 9])); + }); + }); + + group("addFirst()", () { + test("adds an element to the beginning of the queue", () { + var queue = new QueueList.from([1, 2, 3]); + queue.addFirst(0); + expect(queue, equals([0, 1, 2, 3])); + }); + + test("expands a full queue", () { + var queue = atCapacity(); + queue.addFirst(0); + expect(queue, equals([0, 1, 2, 3, 4, 5, 6, 7])); + }); + }); + + group("removeFirst()", () { + test("removes an element from the beginning of the queue", () { + var queue = new QueueList.from([1, 2, 3]); + expect(queue.removeFirst(), equals(1)); + expect(queue, equals([2, 3])); + }); + + test("removes an element from the beginning of a queue with an internal " + "gap", () { + var queue = withInternalGap(); + expect(queue.removeFirst(), equals(1)); + expect(queue, equals([2, 3, 4, 5, 6, 7])); + }); + + test("removes an element from the beginning of a queue at capacity", () { + var queue = atCapacity(); + expect(queue.removeFirst(), equals(1)); + expect(queue, equals([2, 3, 4, 5, 6, 7])); + }); + + test("throws a StateError for an empty queue", () { + expect(new QueueList().removeFirst, throwsStateError); + }); + }); + + group("removeLast()", () { + test("removes an element from the end of the queue", () { + var queue = new QueueList.from([1, 2, 3]); + expect(queue.removeLast(), equals(3)); + expect(queue, equals([1, 2])); + }); + + test("removes an element from the end of a queue with an internal gap", () { + var queue = withInternalGap(); + expect(queue.removeLast(), equals(7)); + expect(queue, equals([1, 2, 3, 4, 5, 6])); + }); + + test("removes an element from the end of a queue at capacity", () { + var queue = atCapacity(); + expect(queue.removeLast(), equals(7)); + expect(queue, equals([1, 2, 3, 4, 5, 6])); + }); + + test("throws a StateError for an empty queue", () { + expect(new QueueList().removeLast, throwsStateError); + }); + }); + + group("length", () { + test("returns the length of a queue", () { + expect(new QueueList.from([1, 2, 3]).length, equals(3)); + }); + + test("returns the length of a queue with an internal gap", () { + expect(withInternalGap().length, equals(7)); + }); + + test("returns the length of a queue at capacity", () { + expect(atCapacity().length, equals(7)); + }); + }); + + group("length=", () { + test("shrinks a larger queue", () { + var queue = new QueueList.from([1, 2, 3]); + queue.length = 1; + expect(queue, equals([1])); + }); + + test("grows a smaller queue", () { + var queue = new QueueList.from([1, 2, 3]); + queue.length = 5; + expect(queue, equals([1, 2, 3, null, null])); + }); + + test("throws a RangeError if length is less than 0", () { + expect(() => new QueueList().length = -1, throwsRangeError); + }); + }); + + group("[]", () { + test("returns individual entries in the queue", () { + var queue = new QueueList.from([1, 2, 3]); + expect(queue[0], equals(1)); + expect(queue[1], equals(2)); + expect(queue[2], equals(3)); + }); + + test("returns individual entries in a queue with an internal gap", () { + var queue = withInternalGap(); + expect(queue[0], equals(1)); + expect(queue[1], equals(2)); + expect(queue[2], equals(3)); + expect(queue[3], equals(4)); + expect(queue[4], equals(5)); + expect(queue[5], equals(6)); + expect(queue[6], equals(7)); + }); + + test("throws a RangeError if the index is less than 0", () { + var queue = new QueueList.from([1, 2, 3]); + expect(() => queue[-1], throwsRangeError); + }); + + test("throws a RangeError if the index is greater than or equal to the " + "length", () { + var queue = new QueueList.from([1, 2, 3]); + expect(() => queue[3], throwsRangeError); + }); + }); + + group("[]=", () { + test("sets individual entries in the queue", () { + var queue = new QueueList.from([1, 2, 3]); + queue[0] = "a"; + queue[1] = "b"; + queue[2] = "c"; + expect(queue, equals(["a", "b", "c"])); + }); + + test("sets individual entries in a queue with an internal gap", () { + var queue = withInternalGap(); + queue[0] = "a"; + queue[1] = "b"; + queue[2] = "c"; + queue[3] = "d"; + queue[4] = "e"; + queue[5] = "f"; + queue[6] = "g"; + expect(queue, equals(["a", "b", "c", "d", "e", "f", "g"])); + }); + + test("throws a RangeError if the index is less than 0", () { + var queue = new QueueList.from([1, 2, 3]); + expect(() { + queue[-1] = 0; + }, throwsRangeError); + }); + + test("throws a RangeError if the index is greater than or equal to the " + "length", () { + var queue = new QueueList.from([1, 2, 3]); + expect(() { + queue[3] = 4; + }, throwsRangeError); + }); + }); + + group("throws a modification error for", () { + var queue; + setUp(() { + queue = new QueueList.from([1, 2, 3]); + }); + + test("add", () { + expect(() => queue.forEach((_) => queue.add(4)), + throwsConcurrentModificationError); + }); + + test("addAll", () { + expect(() => queue.forEach((_) => queue.addAll([4, 5, 6])), + throwsConcurrentModificationError); + }); + + test("addFirst", () { + expect(() => queue.forEach((_) => queue.addFirst(0)), + throwsConcurrentModificationError); + }); + + test("removeFirst", () { + expect(() => queue.forEach((_) => queue.removeFirst()), + throwsConcurrentModificationError); + }); + + test("removeLast", () { + expect(() => queue.forEach((_) => queue.removeLast()), + throwsConcurrentModificationError); + }); + + test("length=", () { + expect(() => queue.forEach((_) => queue.length = 1), + throwsConcurrentModificationError); + }); + }); +} + +/// Returns a queue whose internal ring buffer is full enough that adding a new +/// element will expand it. +QueueList atCapacity() { + // Use addAll because [new QueueList.from(List)] won't use the default initial + // capacity of 8. + return new QueueList()..addAll([1, 2, 3, 4, 5, 6, 7]); +} + +/// Returns a queue whose internal tail has a lower index than its head. +QueueList withInternalGap() { + var queue = new QueueList.from([null, null, null, null, 1, 2, 3, 4]); + for (var i = 0; i < 4; i++) { + queue.removeFirst(); + } + for (var i = 5; i < 8; i++) { + queue.addLast(i); + } + return queue; +} + +/// Returns a matcher that expects that a closure throws a +/// [ConcurrentModificationError]. +final throwsConcurrentModificationError = throwsA( + new isInstanceOf( + "ConcurrentModificationError")); From a20abe7978b0cfe4d0ca199eebaefe4bb76f0083 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?S=C3=B8ren=20Gjesse?= Date: Tue, 24 Feb 2015 13:11:37 +0100 Subject: [PATCH 021/235] Update project to match OSS template R=ricow@google.com BUG= Review URL: https://codereview.chromium.org//956443003 --- pkgs/collection/.gitignore | 8 +++++++ pkgs/collection/.status | 4 ++++ pkgs/collection/AUTHORS | 6 ++++++ pkgs/collection/CONTRIBUTING.md | 33 +++++++++++++++++++++++++++++ pkgs/collection/LICENSE | 2 +- pkgs/collection/README.md | 8 ++++++- pkgs/collection/codereview.settings | 3 +++ pkgs/collection/pubspec.yaml | 2 +- 8 files changed, 63 insertions(+), 3 deletions(-) create mode 100644 pkgs/collection/.gitignore create mode 100644 pkgs/collection/.status create mode 100644 pkgs/collection/AUTHORS create mode 100644 pkgs/collection/CONTRIBUTING.md create mode 100644 pkgs/collection/codereview.settings diff --git a/pkgs/collection/.gitignore b/pkgs/collection/.gitignore new file mode 100644 index 00000000..89f7747c --- /dev/null +++ b/pkgs/collection/.gitignore @@ -0,0 +1,8 @@ +.buildlog +.DS_Store +.idea +.pub/ +.settings/ +build/ +packages +pubspec.lock diff --git a/pkgs/collection/.status b/pkgs/collection/.status new file mode 100644 index 00000000..364ca4b4 --- /dev/null +++ b/pkgs/collection/.status @@ -0,0 +1,4 @@ +# Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file +# for details. All rights reserved. Use of this source code is governed by a +# BSD-style license that can be found in the LICENSE file. + diff --git a/pkgs/collection/AUTHORS b/pkgs/collection/AUTHORS new file mode 100644 index 00000000..e8063a8c --- /dev/null +++ b/pkgs/collection/AUTHORS @@ -0,0 +1,6 @@ +# Below is a list of people and organizations that have contributed +# to the project. Names should be added to the list like so: +# +# Name/Organization + +Google Inc. diff --git a/pkgs/collection/CONTRIBUTING.md b/pkgs/collection/CONTRIBUTING.md new file mode 100644 index 00000000..6f5e0ea6 --- /dev/null +++ b/pkgs/collection/CONTRIBUTING.md @@ -0,0 +1,33 @@ +Want to contribute? Great! First, read this page (including the small print at +the end). + +### Before you contribute +Before we can use your code, you must sign the +[Google Individual Contributor License Agreement](https://cla.developers.google.com/about/google-individual) +(CLA), which you can do online. The CLA is necessary mainly because you own the +copyright to your changes, even after your contribution becomes part of our +codebase, so we need your permission to use and distribute your code. We also +need to be sure of various other things—for instance that you'll tell us if you +know that your code infringes on other people's patents. You don't have to sign +the CLA until after you've submitted your code for review and a member has +approved it, but you must do it before we can put your code into our codebase. + +Before you start working on a larger contribution, you should get in touch with +us first through the issue tracker with your idea so that we can help out and +possibly guide you. Coordinating up front makes it much easier to avoid +frustration later on. + +### Code reviews +All submissions, including submissions by project members, require review. + +### File headers +All files in the project must start with the following header. + + // Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file + // for details. All rights reserved. Use of this source code is governed by a + // BSD-style license that can be found in the LICENSE file. + +### The small print +Contributions made by corporations are covered by a different agreement than the +one above, the +[Software Grant and Corporate Contributor License Agreement](https://developers.google.com/open-source/cla/corporate). diff --git a/pkgs/collection/LICENSE b/pkgs/collection/LICENSE index ee999303..de31e1a0 100644 --- a/pkgs/collection/LICENSE +++ b/pkgs/collection/LICENSE @@ -1,4 +1,4 @@ -Copyright 2013, the Dart project authors. All rights reserved. +Copyright 2015, the Dart project authors. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: diff --git a/pkgs/collection/README.md b/pkgs/collection/README.md index 7ebd62af..73429a5e 100644 --- a/pkgs/collection/README.md +++ b/pkgs/collection/README.md @@ -1,4 +1,4 @@ -Helper libraries for working with collections. +#Helper libraries for working with collections. The `collection` package contains a number of separate libraries with utility functions and classes that makes working with collections easier. @@ -67,3 +67,9 @@ methods to the wrapped object. Wrapper classes can be used in various ways, for example to restrict the type of an object to that of a supertype, or to change the behavior of selected functions on an existing object. + +## Features and bugs + +Please file feature requests and bugs at the [issue tracker][tracker]. + +[tracker]: https://github.com/dart-lang/collection/issues diff --git a/pkgs/collection/codereview.settings b/pkgs/collection/codereview.settings new file mode 100644 index 00000000..4afc2cf6 --- /dev/null +++ b/pkgs/collection/codereview.settings @@ -0,0 +1,3 @@ +CODE_REVIEW_SERVER: http://codereview.chromium.org/ +VIEW_VC: https://github.com/dart-lang/collection/commit/ +CC_LIST: reviews@dartlang.org diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index b4396b93..54dad1b6 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -2,7 +2,7 @@ name: collection version: 1.1.0 author: Dart Team description: Collections and utilities functions and classes related to collections. -homepage: http://www.dartlang.org +homepage: https://www.github.com/dart-lang/collection environment: sdk: '>=1.5.0 <2.0.0' dev_dependencies: From d450612d7dd685d9c5c31dd7be021a19ecb3f4f9 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?S=C3=B8ren=20Gjesse?= Date: Tue, 24 Feb 2015 15:27:15 +0100 Subject: [PATCH 022/235] Update .status for collection package R=ricow@google.com BUG= Review URL: https://codereview.chromium.org//935853003 --- pkgs/collection/.status | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/pkgs/collection/.status b/pkgs/collection/.status index 364ca4b4..ebc5f813 100644 --- a/pkgs/collection/.status +++ b/pkgs/collection/.status @@ -2,3 +2,11 @@ # for details. All rights reserved. Use of this source code is governed by a # BSD-style license that can be found in the LICENSE file. +# Skip non-test files ending with "_test". +packages/*: Skip +*/packages/*: Skip +*/*/packages/*: Skip +*/*/*/packages/*: Skip +*/*/*/*packages/*: Skip +*/*/*/*/*packages/*: Skip + From e07cdd63b82b2c50321c457ed37c87efc8aaf084 Mon Sep 17 00:00:00 2001 From: "Lasse R.H. Nielsen" Date: Thu, 7 May 2015 13:13:53 +0200 Subject: [PATCH 023/235] Fix signatures of isValidKey arguments to CanonicalizedMap constructors. R=wibling@google.com Review URL: https://codereview.chromium.org//1133583002 --- pkgs/collection/CHANGELOG.md | 4 ++++ pkgs/collection/lib/src/canonicalized_map.dart | 4 ++-- pkgs/collection/pubspec.yaml | 2 +- 3 files changed, 7 insertions(+), 3 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 6742b4c2..38c9a8bb 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.1.1 + +* Bug-fix for signatures of `isValidKey` arguments of `CanonicalizedMap`. + ## 1.1.0 * Add a `QueueList` class that implements both `Queue` and `List`. diff --git a/pkgs/collection/lib/src/canonicalized_map.dart b/pkgs/collection/lib/src/canonicalized_map.dart index f1cd8591..7ee3f86c 100644 --- a/pkgs/collection/lib/src/canonicalized_map.dart +++ b/pkgs/collection/lib/src/canonicalized_map.dart @@ -35,7 +35,7 @@ class CanonicalizedMap implements Map { * methods that take arbitrary objects. It can be used to filter out keys that * can't be canonicalized. */ - CanonicalizedMap(C canonicalize(K key), {bool isValidKey(K key)}) + CanonicalizedMap(C canonicalize(K key), {bool isValidKey(Object key)}) : _canonicalize = canonicalize, _isValidKeyFn = isValidKey; @@ -51,7 +51,7 @@ class CanonicalizedMap implements Map { * can't be canonicalized. */ CanonicalizedMap.from(Map other, C canonicalize(K key), - {bool isValidKey(K key)}) + {bool isValidKey(Object key)}) : _canonicalize = canonicalize, _isValidKeyFn = isValidKey { addAll(other); diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 54dad1b6..47f8b1b8 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.1.0 +version: 1.1.1 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection From 8c284290ae91b38e6c32718f1e841285b285c609 Mon Sep 17 00:00:00 2001 From: "Lasse R.H. Nielsen" Date: Fri, 3 Jul 2015 14:52:50 +0200 Subject: [PATCH 024/235] Update to test package, make test work on dart2js. The equality test was missing the status file that marked it as failing on dart2js. Rewrote it to not compare doubles to integers and expect them to not be identical. R=sgjesse@google.com Review URL: https://codereview.chromium.org//1213723007. --- pkgs/collection/.gitignore | 1 + pkgs/collection/pubspec.yaml | 4 +- pkgs/collection/test/algorithms_test.dart | 2 +- .../test/canonicalized_map_test.dart | 2 +- pkgs/collection/test/equality_test.dart | 109 ++++++++++-------- pkgs/collection/test/iterable_zip_test.dart | 2 +- pkgs/collection/test/priority_queue_test.dart | 2 +- pkgs/collection/test/queue_list_test.dart | 5 +- .../test/unmodifiable_collection_test.dart | 2 +- pkgs/collection/test/wrapper_test.dart | 2 +- 10 files changed, 71 insertions(+), 60 deletions(-) diff --git a/pkgs/collection/.gitignore b/pkgs/collection/.gitignore index 89f7747c..25a1df33 100644 --- a/pkgs/collection/.gitignore +++ b/pkgs/collection/.gitignore @@ -5,4 +5,5 @@ .settings/ build/ packages +.packages pubspec.lock diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 47f8b1b8..33110bad 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,9 +1,9 @@ name: collection -version: 1.1.1 +version: 1.1.2-dev author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection environment: sdk: '>=1.5.0 <2.0.0' dev_dependencies: - unittest: '>=0.9.0 <0.11.0' + test: '^0.12.0' diff --git a/pkgs/collection/test/algorithms_test.dart b/pkgs/collection/test/algorithms_test.dart index 933e268e..61fbf5be 100644 --- a/pkgs/collection/test/algorithms_test.dart +++ b/pkgs/collection/test/algorithms_test.dart @@ -5,7 +5,7 @@ /// Tests algorithm utilities. import "package:collection/collection.dart"; -import "package:unittest/unittest.dart"; +import "package:test/test.dart"; import 'dart:math'; void main() { diff --git a/pkgs/collection/test/canonicalized_map_test.dart b/pkgs/collection/test/canonicalized_map_test.dart index 17937770..f5f009b2 100644 --- a/pkgs/collection/test/canonicalized_map_test.dart +++ b/pkgs/collection/test/canonicalized_map_test.dart @@ -3,7 +3,7 @@ // BSD-style license that can be found in the LICENSE file. import "package:collection/collection.dart"; -import "package:unittest/unittest.dart"; +import "package:test/test.dart"; void main() { group("with an empty canonicalized map", () { diff --git a/pkgs/collection/test/equality_test.dart b/pkgs/collection/test/equality_test.dart index edabfd59..e6096085 100644 --- a/pkgs/collection/test/equality_test.dart +++ b/pkgs/collection/test/equality_test.dart @@ -6,113 +6,112 @@ import "dart:collection"; import "package:collection/collection.dart"; -import "package:unittest/unittest.dart"; +import "package:test/test.dart"; main() { + o(id) => new Element(id); + + // Lists that are point-wise equal, but not identical. + var list1 = [o(1), o(2), o(3), o(4), o(5)]; + var list2 = [o(1), o(2), o(3), o(4), o(5)]; + // Similar length list with equal elements in different order. + var list3 = [o(1), o(3), o(5), o(4), o(2)]; + test("IterableEquality - List", () { - var l1 = [1, 2, 3, 4, 5]; - var l2 = [1.0, 2.0, 3.0, 4.0, 5.0]; - expect(const IterableEquality().equals(l1, l2), isTrue); + expect(const IterableEquality().equals(list1, list2), isTrue); Equality iterId = const IterableEquality(const IdentityEquality()); - expect(iterId.equals(l1, l2), isFalse); /// 01: ok + expect(iterId.equals(list1, list2), isFalse); }); test("IterableEquality - LinkedSet", () { - var l1 = new LinkedHashSet.from([1, 2, 3, 4, 5]); - var l2 = new LinkedHashSet.from([1.0, 2.0, 3.0, 4.0, 5.0]); + var l1 = new LinkedHashSet.from(list1); + var l2 = new LinkedHashSet.from(list2); expect(const IterableEquality().equals(l1, l2), isTrue); Equality iterId = const IterableEquality(const IdentityEquality()); - expect(iterId.equals(l1, l2), isFalse); /// 02: ok + expect(iterId.equals(l1, l2), isFalse); }); test("ListEquality", () { - var l1 = [1, 2, 3, 4, 5]; - var l2 = [1.0, 2.0, 3.0, 4.0, 5.0]; - expect(const ListEquality().equals(l1, l2), + expect(const ListEquality().equals(list1, list2), isTrue); Equality listId = const ListEquality(const IdentityEquality()); - expect(listId.equals(l1, l2), isFalse); /// 03: ok + expect(listId.equals(list1, list2), isFalse); }); test("ListInequality length", () { - var l1 = [1, 2, 3, 4, 5]; - var l2 = [1.0, 2.0, 3.0, 4.0, 5.0, 6.0]; - expect(const ListEquality().equals(l1, l2), + var list4 = [o(1), o(2), o(3), o(4), o(5), o(6)]; + expect(const ListEquality().equals(list1, list4), isFalse); - expect(const ListEquality(const IdentityEquality()).equals(l1, l2), + expect(const ListEquality(const IdentityEquality()).equals(list1, list4), isFalse); }); test("ListInequality value", () { - var l1 = [1, 2, 3, 4, 5]; - var l2 = [1.0, 2.0, 3.0, 4.0, 6.0]; - expect(const ListEquality().equals(l1, l2), + var list5 = [o(1), o(2), o(3), o(4), o(6)]; + expect(const ListEquality().equals(list1, list5), isFalse); - expect(const ListEquality(const IdentityEquality()).equals(l1, l2), + expect(const ListEquality(const IdentityEquality()).equals(list1, list5), isFalse); }); test("UnorderedIterableEquality", () { - var l1 = [1, 2, 3, 4, 5]; - var l2 = [1.0, 3.0, 5.0, 4.0, 2.0]; - expect(const UnorderedIterableEquality().equals(l1, l2), + expect(const UnorderedIterableEquality().equals(list1, list3), isTrue); Equality uniterId = const UnorderedIterableEquality(const IdentityEquality()); - expect(uniterId.equals(l1, l2), isFalse); /// 04: ok + expect(uniterId.equals(list1, list3), isFalse); }); test("UnorderedIterableInequality length", () { - var l1 = [1, 2, 3, 4, 5]; - var l2 = [1.0, 3.0, 5.0, 4.0, 2.0, 1.0]; - expect(const UnorderedIterableEquality().equals(l1, l2), + var list6 = [o(1), o(3), o(5), o(4), o(2), o(1)]; + expect(const UnorderedIterableEquality().equals(list1, list6), isFalse); expect(const UnorderedIterableEquality(const IdentityEquality()) - .equals(l1, l2), + .equals(list1, list6), isFalse); }); test("UnorderedIterableInequality values", () { - var l1 = [1, 2, 3, 4, 5]; - var l2 = [1.0, 3.0, 5.0, 4.0, 6.0]; - expect(const UnorderedIterableEquality().equals(l1, l2), + var list7 = [o(1), o(3), o(5), o(4), o(6)]; + expect(const UnorderedIterableEquality().equals(list1, list7), isFalse); expect(const UnorderedIterableEquality(const IdentityEquality()) - .equals(l1, l2), + .equals(list1, list7), isFalse); }); test("SetEquality", () { - var l1 = new HashSet.from([1, 2, 3, 4, 5]); - var l2 = new LinkedHashSet.from([1.0, 3.0, 5.0, 4.0, 2.0]); - expect(const SetEquality().equals(l1, l2), - isTrue); + var set1 = new HashSet.from(list1); + var set2 = new LinkedHashSet.from(list3); + expect(const SetEquality().equals(set1, set2), isTrue); Equality setId = const SetEquality(const IdentityEquality()); - expect(setId.equals(l1, l2), isFalse); /// 05: ok + expect(setId.equals(set1, set2), isFalse); }); test("SetInequality length", () { - var l1 = new HashSet.from([1, 2, 3, 4, 5]); - var l2 = new LinkedHashSet.from([1.0, 3.0, 5.0, 4.0, 2.0, 6.0]); - expect(const SetEquality().equals(l1, l2), + var list8 = [o(1), o(3), o(5), o(4), o(2), o(6)]; + var set1 = new HashSet.from(list1); + var set2 = new LinkedHashSet.from(list8); + expect(const SetEquality().equals(set1, set2), isFalse); - expect(const SetEquality(const IdentityEquality()).equals(l1, l2), + expect(const SetEquality(const IdentityEquality()).equals(set1, set2), isFalse); }); test("SetInequality value", () { - var l1 = new HashSet.from([1, 2, 3, 4, 5]); - var l2 = new LinkedHashSet.from([1.0, 3.0, 5.0, 4.0, 6.0]); - expect(const SetEquality().equals(l1, l2), + var list7 = [o(1), o(3), o(5), o(4), o(6)]; + var set1 = new HashSet.from(list1); + var set2 = new LinkedHashSet.from(list7); + expect(const SetEquality().equals(set1, set2), isFalse); - expect(const SetEquality(const IdentityEquality()).equals(l1, l2), + expect(const SetEquality(const IdentityEquality()).equals(set1, set2), isFalse); }); - var map1a = {"x": [1, 2, 3], "y": [true, false, null]}; - var map1b = {"x": [4.0, 5.0, 6.0], "y": [false, true, null]}; - var map2a = {"x": [3.0, 2.0, 1.0], "y": [false, true, null]}; - var map2b = {"x": [6, 5, 4], "y": [null, false, true]}; + var map1a = {"x": [o(1), o(2), o(3)], "y": [true, false, null]}; + var map1b = {"x": [o(4), o(5), o(6)], "y": [false, true, null]}; + var map2a = {"x": [o(3), o(2), o(1)], "y": [false, true, null]}; + var map2b = {"x": [o(6), o(5), o(4)], "y": [null, false, true]}; var l1 = [map1a, map1b]; var l2 = [map2a, map2b]; var s1 = new Set.from(l1); @@ -162,3 +161,15 @@ main() { isTrue); }); } + +/// Wrapper objects for an `id` value. +/// +/// Compares the `id` value by equality and for comparison. +/// Allows creating simple objects that are equal without being identical. +class Element implements Comparable { + final Comparable id; + const Element(this.id); + int get hashCode => id.hashCode; + bool operator==(Object other) => other is Element && id == other.id; + int compareTo(other) => id.compareTo(other.id); +} diff --git a/pkgs/collection/test/iterable_zip_test.dart b/pkgs/collection/test/iterable_zip_test.dart index ec191fe5..cc8ac76f 100644 --- a/pkgs/collection/test/iterable_zip_test.dart +++ b/pkgs/collection/test/iterable_zip_test.dart @@ -4,7 +4,7 @@ import "dart:collection"; import "package:collection/iterable_zip.dart"; -import "package:unittest/unittest.dart"; +import "package:test/test.dart"; /// Iterable like [base] except that it throws when value equals [errorValue]. Iterable iterError(Iterable base, int errorValue) { diff --git a/pkgs/collection/test/priority_queue_test.dart b/pkgs/collection/test/priority_queue_test.dart index 703ab726..264bf94f 100644 --- a/pkgs/collection/test/priority_queue_test.dart +++ b/pkgs/collection/test/priority_queue_test.dart @@ -5,7 +5,7 @@ /// Tests priority queue implementations utilities. import "package:collection/priority_queue.dart"; -import "package:unittest/unittest.dart"; +import "package:test/test.dart"; void main() { testInt(() => new HeapPriorityQueue()); diff --git a/pkgs/collection/test/queue_list_test.dart b/pkgs/collection/test/queue_list_test.dart index 6b213c8d..cbe518f5 100644 --- a/pkgs/collection/test/queue_list_test.dart +++ b/pkgs/collection/test/queue_list_test.dart @@ -3,7 +3,7 @@ // BSD-style license that can be found in the LICENSE file. import "package:collection/collection.dart"; -import "package:unittest/unittest.dart"; +import "package:test/test.dart"; void main() { group("new QueueList()", () { @@ -272,5 +272,4 @@ QueueList withInternalGap() { /// Returns a matcher that expects that a closure throws a /// [ConcurrentModificationError]. final throwsConcurrentModificationError = throwsA( - new isInstanceOf( - "ConcurrentModificationError")); + new isInstanceOf()); diff --git a/pkgs/collection/test/unmodifiable_collection_test.dart b/pkgs/collection/test/unmodifiable_collection_test.dart index d810b75f..82189abe 100644 --- a/pkgs/collection/test/unmodifiable_collection_test.dart +++ b/pkgs/collection/test/unmodifiable_collection_test.dart @@ -3,7 +3,7 @@ // BSD-style license that can be found in the LICENSE file. import "package:collection/wrappers.dart"; -import "package:unittest/unittest.dart"; +import "package:test/test.dart"; // Test unmodifiable collection views. // The collections should pass through the operations that are allowed, diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index 5858aaf5..a3526a34 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -6,7 +6,7 @@ import "dart:collection"; import "package:collection/collection.dart"; -import "package:unittest/unittest.dart"; +import "package:test/test.dart"; // Test that any member access/call on the wrapper object is equal to // an expected access on the wrapped object. From 9bafb5d1810d1b595e31bc700c1b09f2b0bdc7fa Mon Sep 17 00:00:00 2001 From: Natalie Weizenbaum Date: Tue, 25 Aug 2015 12:46:14 -0700 Subject: [PATCH 025/235] Export UnmodifiableMapView from the Dart core libraries. Exporting this avoids collision errors when import both dart:collection and package:collection. R=lrn@google.com Review URL: https://codereview.chromium.org//1315753002 . --- pkgs/collection/CHANGELOG.md | 4 ++++ .../lib/src/unmodifiable_wrappers.dart | 22 ++++++------------- pkgs/collection/lib/wrappers.dart | 4 +--- 3 files changed, 12 insertions(+), 18 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 38c9a8bb..098e4756 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.1.2 + +* Export `UnmodifiableMapView` from the Dart core libraries. + ## 1.1.1 * Bug-fix for signatures of `isValidKey` arguments of `CanonicalizedMap`. diff --git a/pkgs/collection/lib/src/unmodifiable_wrappers.dart b/pkgs/collection/lib/src/unmodifiable_wrappers.dart index 72b189cf..c681884e 100644 --- a/pkgs/collection/lib/src/unmodifiable_wrappers.dart +++ b/pkgs/collection/lib/src/unmodifiable_wrappers.dart @@ -11,7 +11,13 @@ * The [List] wrapper prevents changes to the length of the wrapped list, * but allows changes to the contents. */ -part of dart.pkg.collection.wrappers; +library collection.unmodifiable_wrappers; + +import "dart:collection"; + +import '../wrappers.dart'; + +export "dart:collection" show UnmodifiableListView, UnmodifiableMapView; /** * A fixed-length list. @@ -192,20 +198,6 @@ abstract class UnmodifiableSetMixin implements Set { void clear() => _throw(); } -/** - * An unmodifiable map. - * - * An UnmodifiableMapView contains a [Map] object and ensures - * that it does not change. - * Methods that would change the map, - * such as [addAll] and [remove], throw an [UnsupportedError]. - * Permitted operations defer to the wrapped map. - */ -class UnmodifiableMapView extends DelegatingMap - with UnmodifiableMapMixin { - UnmodifiableMapView(Map baseMap) : super(baseMap); -} - /** * Mixin class that implements a throwing version of all map operations that * change the Map. diff --git a/pkgs/collection/lib/wrappers.dart b/pkgs/collection/lib/wrappers.dart index 509a966d..f14584d1 100644 --- a/pkgs/collection/lib/wrappers.dart +++ b/pkgs/collection/lib/wrappers.dart @@ -14,10 +14,8 @@ library dart.pkg.collection.wrappers; import "dart:collection"; import "dart:math" show Random; -export "dart:collection" show UnmodifiableListView; - export "src/canonicalized_map.dart"; -part "src/unmodifiable_wrappers.dart"; +export "src/unmodifiable_wrappers.dart"; /** * A base class for delegating iterables. From c2b674326f874297c6962c4feb7127cab45d3097 Mon Sep 17 00:00:00 2001 From: Natalie Weizenbaum Date: Wed, 26 Aug 2015 12:22:22 -0700 Subject: [PATCH 026/235] Fix some flaws with the previous CL. This adds a missing import, removes an unused import, removes tests that are now irrelevant, and releases 1.1.2. R=lrn@google.com Review URL: https://codereview.chromium.org//1313613004 . --- .../lib/src/unmodifiable_wrappers.dart | 2 -- pkgs/collection/lib/wrappers.dart | 2 ++ pkgs/collection/pubspec.yaml | 2 +- .../test/unmodifiable_collection_test.dart | 21 ------------------- 4 files changed, 3 insertions(+), 24 deletions(-) diff --git a/pkgs/collection/lib/src/unmodifiable_wrappers.dart b/pkgs/collection/lib/src/unmodifiable_wrappers.dart index c681884e..7f7d9010 100644 --- a/pkgs/collection/lib/src/unmodifiable_wrappers.dart +++ b/pkgs/collection/lib/src/unmodifiable_wrappers.dart @@ -13,8 +13,6 @@ */ library collection.unmodifiable_wrappers; -import "dart:collection"; - import '../wrappers.dart'; export "dart:collection" show UnmodifiableListView, UnmodifiableMapView; diff --git a/pkgs/collection/lib/wrappers.dart b/pkgs/collection/lib/wrappers.dart index f14584d1..34f812c2 100644 --- a/pkgs/collection/lib/wrappers.dart +++ b/pkgs/collection/lib/wrappers.dart @@ -14,6 +14,8 @@ library dart.pkg.collection.wrappers; import "dart:collection"; import "dart:math" show Random; +import "src/unmodifiable_wrappers.dart"; + export "src/canonicalized_map.dart"; export "src/unmodifiable_wrappers.dart"; diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 33110bad..1517353e 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.1.2-dev +version: 1.1.2 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection diff --git a/pkgs/collection/test/unmodifiable_collection_test.dart b/pkgs/collection/test/unmodifiable_collection_test.dart index 82189abe..6c722d09 100644 --- a/pkgs/collection/test/unmodifiable_collection_test.dart +++ b/pkgs/collection/test/unmodifiable_collection_test.dart @@ -42,21 +42,6 @@ main() { testUnmodifiableSet(aSet, new UnmodifiableSetView(aSet), "three-42"); aSet = new Set.from([1, 7, 10]); testUnmodifiableSet(aSet, new UnmodifiableSetView(aSet), "three!42"); - - Map map = new Map(); - testUnmodifiableMap(map, new UnmodifiableMapView(map), "empty"); - map = new Map()..[0] = 2; - testUnmodifiableMap(map, new UnmodifiableMapView(map), "single-0"); - map = new Map()..[3] = 2; - testUnmodifiableMap(map, new UnmodifiableMapView(map), "single!0"); - map = new Map()..[0] = 2 - ..[1] = 1 - ..[2] = 0; - testUnmodifiableMap(map, new UnmodifiableMapView(map), "three-0"); - map = new Map()..[3] = 2 - ..[1] = 1 - ..[2] = 3; - testUnmodifiableMap(map, new UnmodifiableMapView(map), "three!0"); } void testUnmodifiableList(List original, List wrapped, String name) { @@ -82,12 +67,6 @@ void testUnmodifiableSet(Set original, Set wrapped, String name) { testNoChangeSet(original, wrapped, name); } -void testUnmodifiableMap(Map original, Map wrapped, name) { - name = "unmodifiable-map-$name"; - testReadMap(original, wrapped, name); - testNoChangeMap(original, wrapped, name); -} - void testIterable(Iterable original, Iterable wrapped, String name) { test("$name - any", () { expect(wrapped.any((x) => true), equals(original.any((x) => true))); From 5e4326ee07e63b991b78e14a145d4e384106bffe Mon Sep 17 00:00:00 2001 From: Vijay Menon Date: Thu, 17 Sep 2015 13:55:35 -0700 Subject: [PATCH 027/235] Fix inconsistent APIs Strong mode is complaining about these - they are not consistent with the corresponding APIs in Map and Set. R=lrn@google.com, nweiz@google.com Review URL: https://codereview.chromium.org//1353873002 . --- pkgs/collection/CHANGELOG.md | 4 ++++ pkgs/collection/lib/src/unmodifiable_wrappers.dart | 2 +- pkgs/collection/lib/wrappers.dart | 4 ++-- pkgs/collection/pubspec.yaml | 2 +- 4 files changed, 8 insertions(+), 4 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 098e4756..ad50fa19 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.1.3 + +* Fix type inconsistencies with `Map` and `Set`. + ## 1.1.2 * Export `UnmodifiableMapView` from the Dart core libraries. diff --git a/pkgs/collection/lib/src/unmodifiable_wrappers.dart b/pkgs/collection/lib/src/unmodifiable_wrappers.dart index 7f7d9010..efe3c9d0 100644 --- a/pkgs/collection/lib/src/unmodifiable_wrappers.dart +++ b/pkgs/collection/lib/src/unmodifiable_wrappers.dart @@ -227,7 +227,7 @@ abstract class UnmodifiableMapMixin implements Map { * Throws an [UnsupportedError]; * operations that change the map are disallowed. */ - V remove(K key) => _throw(); + V remove(Object key) => _throw(); /** * Throws an [UnsupportedError]; diff --git a/pkgs/collection/lib/wrappers.dart b/pkgs/collection/lib/wrappers.dart index 34f812c2..9f8b8338 100644 --- a/pkgs/collection/lib/wrappers.dart +++ b/pkgs/collection/lib/wrappers.dart @@ -234,7 +234,7 @@ class DelegatingSet extends DelegatingIterable implements Set { Set intersection(Set other) => _setBase.intersection(other); - E lookup(E element) => _setBase.lookup(element); + E lookup(Object element) => _setBase.lookup(element); bool remove(Object value) => _setBase.remove(value); @@ -518,7 +518,7 @@ class MapValueSet extends _DelegatingIterableBase implements Set { */ Set intersection(Set other) => where(other.contains).toSet(); - V lookup(V element) => _baseMap[_keyForValue(element)]; + V lookup(Object element) => _baseMap[_keyForValue(element)]; bool remove(Object value) { if (value != null && value is! V) return false; diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 1517353e..514ec4be 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.1.2 +version: 1.1.3 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection From 0d8a2a5997d34d79b25c2ace2533e2c1cb669434 Mon Sep 17 00:00:00 2001 From: "Lasse R.H. Nielsen" Date: Thu, 19 Nov 2015 08:17:32 +0100 Subject: [PATCH 028/235] Add string comparators that can compare ASCII strings ignoring case. Also add comparators that compare digit sequences lexicographically (which is the same as comparing numerically if there are no leading zeros). The comparison functions define total orderings, breaking ties for strings that only differ by case by their first case-different letter, upper-case being less than lower-case. R=floitsch@google.com, rnystrom@google.com, sra@google.com Review URL: https://codereview.chromium.org//1412293008. --- pkgs/collection/CHANGELOG.md | 4 + pkgs/collection/lib/collection.dart | 1 + pkgs/collection/lib/src/comparators.dart | 399 +++++++++++++++++++++ pkgs/collection/pubspec.yaml | 2 +- pkgs/collection/test/comparators_test.dart | 119 ++++++ 5 files changed, 524 insertions(+), 1 deletion(-) create mode 100644 pkgs/collection/lib/src/comparators.dart create mode 100644 pkgs/collection/test/comparators_test.dart diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index ad50fa19..a39a2b5d 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.2.0 + +* Add string comparators that ignore ASCII case and sort numbers numerically. + ## 1.1.3 * Fix type inconsistencies with `Map` and `Set`. diff --git a/pkgs/collection/lib/collection.dart b/pkgs/collection/lib/collection.dart index 45d38672..6d451b87 100644 --- a/pkgs/collection/lib/collection.dart +++ b/pkgs/collection/lib/collection.dart @@ -22,5 +22,6 @@ export "equality.dart"; export "iterable_zip.dart"; export "priority_queue.dart"; export "src/canonicalized_map.dart"; +export "src/comparators.dart"; export "src/queue_list.dart"; export "wrappers.dart"; diff --git a/pkgs/collection/lib/src/comparators.dart b/pkgs/collection/lib/src/comparators.dart new file mode 100644 index 00000000..19b70e94 --- /dev/null +++ b/pkgs/collection/lib/src/comparators.dart @@ -0,0 +1,399 @@ +// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +library dart.pkg.collection.comparators; + +// Character constants. +const int _zero = 0x30; +const int _upperCaseA = 0x41; +const int _upperCaseZ = 0x5b; +const int _lowerCaseA = 0x61; +const int _lowerCaseZ = 0x7b; +const int _asciiCaseBit = 0x20; + +/// Checks if strings [a] and [b] differ only on the case of ASCII letters. +/// +/// Strings are equal if they have the same length, and the characters at +/// each index are the same, or they are ASCII letters where one is upper-case +/// and the other is the lower-case version of the same letter. +/// +/// The comparison does not ignore the case of non-ASCII letters, so +/// an upper-case ae-ligature (Æ) is different from +/// a lower case ae-ligature (æ). +/// +/// Ignoring non-ASCII letters is not generally a good idea, but it makes sense +/// for situations where the strings are known to be ASCII. Examples could +/// be Dart identifiers, base-64 or hex encoded strings, GUIDs or similar +/// strings with a known structure. +bool equalsIgnoreAsciiCase(String a, String b) { + if (a.length != b.length) return false; + for (int i = 0; i < a.length; i++) { + var aChar = a.codeUnitAt(i); + var bChar = b.codeUnitAt(i); + if (aChar == bChar) continue; + // Quick-check for whether this may be different cases of the same letter. + if (aChar ^ bChar != _asciiCaseBit) return false; + // If it's possible, then check if either character is actually an ASCII + // letter. + int aCharUpperCase = aChar | _asciiCaseBit; + if (_upperCaseA <= aCharUpperCase && aCharUpperCase <= _upperCaseZ) { + continue; + } + return false; + } + return true; +} + + +/// Hash code for a string which is compatible with [equalsIgnoreAsciiCase]. +/// +/// The hash code is unaffected by changing the case of ASCII letters, but +/// the case of non-ASCII letters do affect the result. +int hashIgnoreAsciiCase(String string) { + // Jenkins hash code ( http://en.wikipedia.org/wiki/Jenkins_hash_function). + // adapted to smi values. + // Same hash used by dart2js for strings, modified to ignore ASCII letter + // case. + int hash = 0; + for (int i = 0; i < string.length; i++) { + int char = string.codeUnitAt(i); + // Convert lower-case ASCII letters to upper case.upper + // This ensures that strings that differ only in case will have the + // same hash code. + if (_lowerCaseA <= char && char <= _lowerCaseZ) char -= _asciiCaseBit; + hash = 0x1fffffff & (hash + char); + hash = 0x1fffffff & (hash + ((0x0007ffff & hash) << 10)); + hash >>= 6; + } + hash = 0x1fffffff & (hash + ((0x03ffffff & hash) << 3)); + hash >>= 11; + return 0x1fffffff & (hash + ((0x00003fff & hash) << 15)); +} + + +/// Compares [a] and [b] lexically, converting ASCII letters to upper case. +/// +/// Comparison treats all lower-case ASCII letters as upper-case letters, +/// but does no case conversion for non-ASCII letters. +/// +/// If two strings differ only on the case of ASCII letters, the one with the +/// capital letter at the first difference will compare as less than the other +/// string. This tie-breaking ensures that the comparison is a total ordering +/// on strings and is compatible with equality. +/// +/// Ignoring non-ASCII letters is not generally a good idea, but it makes sense +/// for situations where the strings are known to be ASCII. Examples could +/// be Dart identifiers, base-64 or hex encoded strings, GUIDs or similar +/// strings with a known structure. +int compareAsciiUpperCase(String a, String b) { + int defaultResult = 0; // Returned if no difference found. + for (int i = 0; i < a.length; i++) { + if (i >= b.length) return 1; + var aChar = a.codeUnitAt(i); + var bChar = b.codeUnitAt(i); + if (aChar == bChar) continue; + // Upper-case if letters. + int aUpperCase = aChar; + int bUpperCase = bChar; + if (_lowerCaseA <= aChar && aChar <= _lowerCaseZ) { + aUpperCase -= _asciiCaseBit; + } + if (_lowerCaseA <= bChar && bChar <= _lowerCaseZ) { + bUpperCase -= _asciiCaseBit; + } + if (aUpperCase != bUpperCase) return (aUpperCase - bUpperCase).sign; + if (defaultResult == 0) defaultResult = (aChar - bChar); + } + if (b.length > a.length) return -1; + return defaultResult.sign; +} + + +/// Compares [a] and [b] lexically, converting ASCII letters to lower case. +/// +/// Comparison treats all upper-case ASCII letters as lower-case letters, +/// but does no case conversion for non-ASCII letters. +/// +/// If two strings differ only on the case of ASCII letters, the one with the +/// capital letter at the first difference will compare as less than the other +/// string. This tie-breaking ensures that the comparison is a total ordering +/// on strings. +/// +/// Ignoring non-ASCII letters is not generally a good idea, but it makes sense +/// for situations where the strings are known to be ASCII. Examples could +/// be Dart identifiers, base-64 or hex encoded strings, GUIDs or similar +/// strings with a known structure. +int compareAsciiLowerCase(String a, String b) { + int defaultResult = 0; + for (int i = 0; i < a.length; i++) { + if (i >= b.length) return 1; + var aChar = a.codeUnitAt(i); + var bChar = b.codeUnitAt(i); + if (aChar == bChar) continue; + int aLowerCase = aChar; + int bLowerCase = bChar; + // Upper case if ASCII letters. + if (_upperCaseA <= bChar && bChar <= _upperCaseZ) { + bLowerCase += _asciiCaseBit; + } + if (_upperCaseA <= aChar && aChar <= _upperCaseZ) { + aLowerCase += _asciiCaseBit; + } + if (aLowerCase != bLowerCase) return (aLowerCase - bLowerCase).sign; + if (defaultResult == 0) defaultResult = aChar - bChar; + } + if (b.length > a.length) return -1; + return defaultResult.sign; +} + +/// Compares strings [a] and [b] according to [natural sort ordering]. +/// +/// A natural sort ordering is a lexical ordering where embedded +/// numerals (digit sequences) are treated as a single unit and ordered by +/// numerical value. +/// This means that `"a10b"` will be ordered after `"a7b"` in natural +/// ordering, where lexical ordering would put the `1` before the `7`, ignoring +/// that the `1` is part of a larger number. +/// +/// Example: +/// The following strings are in the order they would be sorted by using this +/// comparison function: +/// +/// "a", "a0", "a0b", "a1", "a01", "a9", "a10", "a100", "a100b", "aa" +/// +/// [natural sort ordering]: https://en.wikipedia.org/wiki/Natural_sort_order +int compareNatural(String a, String b) { + for (int i = 0; i < a.length; i++) { + if (i >= b.length) return 1; + var aChar = a.codeUnitAt(i); + var bChar = b.codeUnitAt(i); + if (aChar != bChar) { + return _compareNaturally(a, b, i, aChar, bChar); + } + } + if (b.length > a.length) return -1; + return 0; +} + +/// Compares strings [a] and [b] according to lower-case +/// [natural sort ordering]. +/// +/// ASCII letters are converted to lower case before being compared, like +/// for [compareAsciiLowerCase], then the result is compared like for +/// [compareNatural]. +/// +/// If two strings differ only on the case of ASCII letters, the one with the +/// capital letter at the first difference will compare as less than the other +/// string. This tie-breaking ensures that the comparison is a total ordering +/// on strings. +/// +/// [natural sort ordering]: https://en.wikipedia.org/wiki/Natural_sort_order +int compareAsciiLowerCaseNatural(String a, String b) { + int defaultResult = 0; // Returned if no difference found. + for (int i = 0; i < a.length; i++) { + if (i >= b.length) return 1; + var aChar = a.codeUnitAt(i); + var bChar = b.codeUnitAt(i); + if (aChar == bChar) continue; + int aLowerCase = aChar; + int bLowerCase = bChar; + if (_upperCaseA <= aChar && aChar <= _upperCaseZ) { + aLowerCase += _asciiCaseBit; + } + if (_upperCaseA <= bChar && bChar <= _upperCaseZ) { + bLowerCase += _asciiCaseBit; + } + if (aLowerCase != bLowerCase) { + return _compareNaturally(a, b, i, aLowerCase, bLowerCase); + } + if (defaultResult == 0) defaultResult = aChar - bChar; + } + if (b.length > a.length) return -1; + return defaultResult.sign; +} + +/// Compares strings [a] and [b] according to upper-case +/// [natural sort ordering]. +/// +/// ASCII letters are converted to upper case before being compared, like +/// for [compareAsciiUpperCase], then the result is compared like for +/// [compareNatural]. +/// +/// If two strings differ only on the case of ASCII letters, the one with the +/// capital letter at the first difference will compare as less than the other +/// string. This tie-breaking ensures that the comparison is a total ordering +/// on strings +/// +/// [natural sort ordering]: https://en.wikipedia.org/wiki/Natural_sort_order +int compareAsciiUpperCaseNatural(String a, String b) { + int defaultResult = 0; + for (int i = 0; i < a.length; i++) { + if (i >= b.length) return 1; + var aChar = a.codeUnitAt(i); + var bChar = b.codeUnitAt(i); + if (aChar == bChar) continue; + int aUpperCase = aChar; + int bUpperCase = bChar; + if (_lowerCaseA <= aChar && aChar <= _lowerCaseZ) { + aUpperCase -= _asciiCaseBit; + } + if (_lowerCaseA <= bChar && bChar <= _lowerCaseZ) { + bUpperCase -= _asciiCaseBit; + } + if (aUpperCase != bUpperCase) { + return _compareNaturally(a, b, i, aUpperCase, bUpperCase); + } + if (defaultResult == 0) defaultResult = aChar - bChar; + } + if (b.length > a.length) return -1; + return defaultResult.sign; +} + +/// Check for numbers overlapping the current mismatched characters. +/// +/// If both [aChar] and [bChar] are digits, use numerical comparison. +/// Check if the previous characters is a non-zero number, and if not, +/// skip - but count - leading zeros before comparing numbers. +/// +/// If one is a digit and the other isn't, check if the previous character +/// is a digit, and if so, the the one with the digit is the greater number. +/// +/// Otherwise just returns the difference between [aChar] and [bChar]. +int _compareNaturally( + String a, String b, int index, int aChar, int bChar) { + assert(aChar != bChar); + var aIsDigit = _isDigit(aChar); + var bIsDigit = _isDigit(bChar); + if (aIsDigit) { + if (bIsDigit) { + return _compareNumerically(a, b, aChar, bChar, index); + } else if (index > 0 && _isDigit(a.codeUnitAt(index - 1))) { + // aChar is the continuation of a longer number. + return 1; + } + } else if (bIsDigit && index > 0 && _isDigit(b.codeUnitAt(index - 1))) { + // bChar is the continuation of a longer number. + return -1; + } + // Characters are both non-digits, or not continuation of earlier number. + return (aChar - bChar).sign; +} + +/// Compare numbers overlapping [aChar] and [bChar] numerically. +/// +/// If the numbers have the same numerical value, but one has more leading +/// zeros, the longer number is considered greater than the shorter one. +/// +/// This ensures a total ordering on strings compatible with equality. +int _compareNumerically(String a, String b, int aChar, int bChar, int index) { + // Both are digits. Find the first significant different digit, then find + // the length of the numbers. + if (_isNonZeroNumberSuffix(a, index)) { + // Part of a longer number, differs at this index, just count the length. + int result = _compareDigitCount(a, b, index, index); + if (result != 0) return result; + // If same length, the current character is the most significant differing + // digit. + return (aChar - bChar).sign; + } + // Not part of larger (non-zero) number, so skip leading zeros before + // comparing numbers. + int aIndex = index; + int bIndex = index; + if (aChar == _zero) { + do { + aIndex++; + if (aIndex == a.length) return -1; // number in a is zero, b is not. + aChar = a.codeUnitAt(aIndex); + } while (aChar == _zero); + if (!_isDigit(aChar)) return -1; + } else if (bChar == _zero) { + do { + bIndex++; + if (bIndex == b.length) return 1; // number in b is zero, a is not. + bChar = b.codeUnitAt(bIndex); + } while (bChar == _zero); + if (!_isDigit(bChar)) return 1; + } + if (aChar != bChar) { + int result = _compareDigitCount(a, b, aIndex, bIndex); + if (result != 0) return result; + return (aChar - bChar).sign; + } + // Same leading digit, one had more leading zeros. + // Compare digits until reaching a difference. + while (true) { + var aIsDigit = false; + var bIsDigit = false; + aChar = 0; + bChar = 0; + if (++aIndex < a.length) { + aChar = a.codeUnitAt(aIndex); + aIsDigit = _isDigit(aChar); + } + if (++bIndex < b.length) { + bChar = b.codeUnitAt(bIndex); + bIsDigit = _isDigit(bChar); + } + if (aIsDigit) { + if (bIsDigit) { + if (aChar == bChar) continue; + // First different digit found. + break; + } + // bChar is non-digit, so a has longer number. + return 1; + } else if (bIsDigit) { + return -1; // b has longer number. + } else { + // Neither is digit, so numbers had same numerical value. + // Fall back on number of leading zeros + // (reflected by difference in indices). + return (aIndex - bIndex).sign; + } + } + // At first differing digits. + int result = _compareDigitCount(a, b, aIndex, bIndex); + if (result != 0) return result; + return (aChar - bChar).sign; +} + +/// Checks which of [a] and [b] has the longest sequence of digits. +/// +/// Starts counting from `i + 1` and `j + 1` (assumes that `a[i]` and `b[j]` are +/// both already known to be digits). +int _compareDigitCount(String a, String b, int i, int j) { + while (++i < a.length) { + bool aIsDigit = _isDigit(a.codeUnitAt(i)); + if (++j == b.length) return aIsDigit ? 1 : 0; + bool bIsDigit = _isDigit(b.codeUnitAt(j)); + if (aIsDigit) { + if (bIsDigit) continue; + return 1; + } else if (bIsDigit) { + return -1; + } else { + return 0; + } + } + if (++j < b.length && _isDigit(b.codeUnitAt(j))) { + return -1; + } + return 0; +} + +bool _isDigit(int charCode) => (charCode ^ _zero) <= 9; + +/// Check if the digit at [index] is continuing a non-zero number. +/// +/// If there is no non-zero digits before, then leading zeros at [index] +/// are also ignored when comparing numerically. If there is a non-zero digit +/// before, then zeros at [index] are significant. +bool _isNonZeroNumberSuffix(String string, int index) { + while (--index >= 0) { + int char = string.codeUnitAt(index); + if (char != _zero) return _isDigit(char); + } + return false; +} diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 514ec4be..36423219 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.1.3 +version: 1.2.0 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection diff --git a/pkgs/collection/test/comparators_test.dart b/pkgs/collection/test/comparators_test.dart new file mode 100644 index 00000000..4acdc2c1 --- /dev/null +++ b/pkgs/collection/test/comparators_test.dart @@ -0,0 +1,119 @@ +// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import "package:collection/collection.dart"; +import "package:test/test.dart"; + +void main() { + List strings = [ + "", + "\x00", + " ", + "+", + "/", + "0", + "00", + "000", + "001", + "01", + "011", + "1", + "100", + "11", + "110", + "9", + ":", + "=", + "@", + "A", + "A0", + "A000A", + "A001A", + "A00A", + "A01A", + "A0A", + "A1A", + "AA", + "AAB", + "AB", + "Z", + "[", + "_", + "`", + "a", + "a0", + "a000a", + "a001a", + "a00a", + "a01a", + "a0a", + "a1a", + "aa", + "aab", + "ab", + "z", + "{", + "~" + ]; + + sortedBy(compare) => strings.toList()..shuffle()..sort(compare); + + test("String.compareTo", () { + expect(sortedBy(null), strings); + }); + test("compareAsciiLowerCase", () { + expect(sortedBy(compareAsciiLowerCase), + sortedBy((a, b) { + int delta = a.toLowerCase().compareTo(b.toLowerCase()); + if (delta != 0) return delta; + if (a == b) return 0; + return a.compareTo(b); + })); + }); + test("compareAsciiUpperCase", () { + expect(sortedBy(compareAsciiUpperCase), + sortedBy((a, b) { + int delta = a.toUpperCase().compareTo(b.toUpperCase()); + if (delta != 0) return delta; + if (a == b) return 0; + return a.compareTo(b); + })); + }); + + // Replace any digit sequence by ("0", value, length) as char codes. + // This will sort alphabetically (by charcode) the way digits sort + // numerically, and the leading 0 means it sorts like a digit + // compared to non-digits. + replaceNumbers(string) => string.replaceAllMapped(new RegExp(r"\d+"), (m) { + var digits = m[0]; + return new String.fromCharCodes([0x30, int.parse(digits), digits.length]); + }); + + test("compareNatural", () { + expect(sortedBy(compareNatural), + sortedBy((a, b) => replaceNumbers(a).compareTo(replaceNumbers(b)))); + }); + + test("compareAsciiLowerCaseNatural", () { + expect(sortedBy(compareAsciiLowerCaseNatural), + sortedBy((a, b) { + int delta = replaceNumbers(a.toLowerCase()).compareTo( + replaceNumbers(b.toLowerCase())); + if (delta != 0) return delta; + if (a == b) return 0; + return a.compareTo(b); + })); + }); + + test("compareAsciiUpperCaseNatural", () { + expect(sortedBy(compareAsciiUpperCaseNatural), + sortedBy((a, b) { + int delta = replaceNumbers(a.toUpperCase()).compareTo( + replaceNumbers(b.toUpperCase())); + if (delta != 0) return delta; + if (a == b) return 0; + return a.compareTo(b); + })); + }); +} From 8453fa838a242624d2ce5db7b0e91469d23b2c06 Mon Sep 17 00:00:00 2001 From: "Lasse R.H. Nielsen" Date: Fri, 20 Nov 2015 09:26:47 +0100 Subject: [PATCH 029/235] Bad z/Z ASCII value. Changed it to test that tests fail with wrong value, changed it back to another wrong value. Review URL: https://codereview.chromium.org//1458853006. --- pkgs/collection/lib/src/comparators.dart | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/lib/src/comparators.dart b/pkgs/collection/lib/src/comparators.dart index 19b70e94..05615ba1 100644 --- a/pkgs/collection/lib/src/comparators.dart +++ b/pkgs/collection/lib/src/comparators.dart @@ -7,9 +7,9 @@ library dart.pkg.collection.comparators; // Character constants. const int _zero = 0x30; const int _upperCaseA = 0x41; -const int _upperCaseZ = 0x5b; +const int _upperCaseZ = 0x5a; const int _lowerCaseA = 0x61; -const int _lowerCaseZ = 0x7b; +const int _lowerCaseZ = 0x7a; const int _asciiCaseBit = 0x20; /// Checks if strings [a] and [b] differ only on the case of ASCII letters. From 9ebab8d2f2d6826adaaeac6beba51da5efda1679 Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Fri, 20 Nov 2015 11:50:35 -0800 Subject: [PATCH 030/235] Readme fixes and spelling tweaks --- pkgs/collection/README.md | 26 ++++++++++++++----------- pkgs/collection/lib/equality.dart | 2 +- pkgs/collection/lib/priority_queue.dart | 2 +- pkgs/collection/lib/wrappers.dart | 4 ++-- pkgs/collection/test/wrapper_test.dart | 2 +- 5 files changed, 20 insertions(+), 16 deletions(-) diff --git a/pkgs/collection/README.md b/pkgs/collection/README.md index 73429a5e..8772e655 100644 --- a/pkgs/collection/README.md +++ b/pkgs/collection/README.md @@ -1,6 +1,4 @@ -#Helper libraries for working with collections. - -The `collection` package contains a number of separate libraries +Contains a number libraries with utility functions and classes that makes working with collections easier. ## Using @@ -8,15 +6,19 @@ with utility functions and classes that makes working with collections easier. The `collection` package can be imported as separate libraries, or in totality: - import 'package:collection/algorithms.dart'; - import 'package:collection/equality.dart'; - import 'package:collection/iterable_zip.dart'; - import 'package:collection/priority_queue.dart'; - import 'package:collection/wrappers.dart'; +```dart +import 'package:collection/algorithms.dart'; +import 'package:collection/equality.dart'; +import 'package:collection/iterable_zip.dart'; +import 'package:collection/priority_queue.dart'; +import 'package:collection/wrappers.dart'; +``` or - import 'package:collection/collection.dart'; +```dart +import 'package:collection/collection.dart'; +``` ## Algorithms @@ -41,7 +43,9 @@ that considers two sets equal exactly if they contain identical elements. The library provides ways to define equalities on `Iterable`s, `List`s, `Set`s, and `Map`s, as well as combinations of these, such as: - const MapEquality(const IdentityEquality(), const ListEquality()); +```dart +const MapEquality(const IdentityEquality(), const ListEquality()); +``` This equality considers maps equal if they have identical keys, and the corresponding values are lists with equal (`operator==`) values. @@ -54,7 +58,7 @@ Utilities for "zipping" a list of iterables into an iterable of lists. ## Priority Queue -An interface and implemention of a priority queue. +An interface and implementation of a priority queue. ## Wrappers diff --git a/pkgs/collection/lib/equality.dart b/pkgs/collection/lib/equality.dart index c6fdafa0..5911863f 100644 --- a/pkgs/collection/lib/equality.dart +++ b/pkgs/collection/lib/equality.dart @@ -357,7 +357,7 @@ class MultiEquality implements Equality { * * In ordered mode, lists and iterables are required to have equal elements * in the same order. In unordered mode, the order of elements in iterables - * and lists are not importan. + * and lists are not important. * * A list is only equal to another list, likewise for sets and maps. All other * iterables are compared as iterables only. diff --git a/pkgs/collection/lib/priority_queue.dart b/pkgs/collection/lib/priority_queue.dart index efb32390..e1a01777 100644 --- a/pkgs/collection/lib/priority_queue.dart +++ b/pkgs/collection/lib/priority_queue.dart @@ -275,7 +275,7 @@ class HeapPriorityQueue implements PriorityQueue { */ int _locate(E object) { if (_length == 0) return -1; - // Count positions from one instad of zero. This gives the numbers + // Count positions from one instead of zero. This gives the numbers // some nice properties. For example, all right children are odd, // their left sibling is even, and the parent is found by shifting // right by one. diff --git a/pkgs/collection/lib/wrappers.dart b/pkgs/collection/lib/wrappers.dart index 9f8b8338..30c736ed 100644 --- a/pkgs/collection/lib/wrappers.dart +++ b/pkgs/collection/lib/wrappers.dart @@ -6,8 +6,8 @@ * Delegating wrappers for [Iterable], [List], [Set], [Queue] and [Map]. * * Also adds unmodifiable views for `Set` and `Map`, and a fixed length - * view for `List`. The unmodifable list view from `dart:collection` is exported - * as well, just for completeness. + * view for `List`. The unmodifiable list view from `dart:collection` is + * exported as well, just for completeness. */ library dart.pkg.collection.wrappers; diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index a3526a34..e3043a2f 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -147,7 +147,7 @@ void main() { expect.first.equals.first; // Default values of the Iterable interface will be added in the // second call to firstWhere, so we must record them in our - // expectation (which doesn't have the interface implementat or + // expectation (which doesn't have the interface implemented or // its default values). expect.firstWhere(func1, orElse: null).equals.firstWhere(func1); expect.firstWhere(func1, orElse: func0).equals. From fa4de52098e4e4a4fe8d68be1083d9199ca57259 Mon Sep 17 00:00:00 2001 From: reosablo Date: Fri, 1 Jan 2016 14:52:44 +0900 Subject: [PATCH 031/235] Add key validation for CanonicalizedMap.[]= to prevent to affect its keys and values --- pkgs/collection/lib/src/canonicalized_map.dart | 1 + pkgs/collection/test/canonicalized_map_test.dart | 9 +++++++++ 2 files changed, 10 insertions(+) diff --git a/pkgs/collection/lib/src/canonicalized_map.dart b/pkgs/collection/lib/src/canonicalized_map.dart index 7ee3f86c..21fb83dc 100644 --- a/pkgs/collection/lib/src/canonicalized_map.dart +++ b/pkgs/collection/lib/src/canonicalized_map.dart @@ -64,6 +64,7 @@ class CanonicalizedMap implements Map { } void operator []=(K key, V value) { + if (!_isValidKey(key)) return; _base[_canonicalize(key)] = new Pair(key, value); } diff --git a/pkgs/collection/test/canonicalized_map_test.dart b/pkgs/collection/test/canonicalized_map_test.dart index f5f009b2..1bfeb2b0 100644 --- a/pkgs/collection/test/canonicalized_map_test.dart +++ b/pkgs/collection/test/canonicalized_map_test.dart @@ -22,6 +22,15 @@ void main() { expect(map["foo"], isNull); }); + test("set affects nothing for uncanonicalizable key", () { + expect(() { + map["foo"] = "value"; + }, returnsNormally); + expect(map["foo"], isNull); + expect(map.containsKey("foo"), isFalse); + expect(map.length, equals(0)); + }); + test("canonicalizes keys for addAll", () { map.addAll({ "1": "value 1", From 74f2b31789adf9a5019e3d9fe6f3dbe4d1e01276 Mon Sep 17 00:00:00 2001 From: Adam Barth Date: Mon, 4 Jan 2016 09:51:23 -0800 Subject: [PATCH 032/235] Add lowerBound This patch adds a lowerBound function to algorithms.dart to complement binarySearch. It's common to binary search a sorted list for a item that might or might not be present. If the item is not present, lowerBound lets you learn where in the collection it would have been. --- pkgs/collection/CHANGELOG.md | 4 ++ pkgs/collection/lib/algorithms.dart | 63 ++++++++++++++++++++--- pkgs/collection/pubspec.yaml | 2 +- pkgs/collection/test/algorithms_test.dart | 54 +++++++++++++++++++ 4 files changed, 114 insertions(+), 9 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index a39a2b5d..04f883f3 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.2.1 + +* Add lowerBound to binary search for values that might not be present. + ## 1.2.0 * Add string comparators that ignore ASCII case and sort numbers numerically. diff --git a/pkgs/collection/lib/algorithms.dart b/pkgs/collection/lib/algorithms.dart index 5ff0bb3b..80f01070 100644 --- a/pkgs/collection/lib/algorithms.dart +++ b/pkgs/collection/lib/algorithms.dart @@ -10,13 +10,13 @@ library dart.pkg.collection.algorithms; import "dart:math" show Random; /** Version of [binarySearch] optimized for comparable keys */ -int _comparableBinarySearch(List list, Comparable key) { +int _comparableBinarySearch(List list, Comparable value) { int min = 0; int max = list.length; while (min < max) { int mid = min + ((max - min) >> 1); var element = list[mid]; - int comp = element.compareTo(key); + int comp = element.compareTo(value); if (comp == 0) return mid; if (comp < 0) { min = mid + 1; @@ -28,7 +28,7 @@ int _comparableBinarySearch(List list, Comparable key) { } /** - * Returns a position of the [key] in [sortedList], if it is there. + * Returns a position of the [value] in [sortedList], if it is there. * * If the list isn't sorted according to the [compare] function, the result * is unpredictable. @@ -36,19 +36,18 @@ int _comparableBinarySearch(List list, Comparable key) { * If [compare] is omitted, it defaults to calling [Comparable.compareTo] on * the objects. * - * Returns -1 if [key] is not in the list by default. + * Returns -1 if [value] is not in the list by default. */ -int binarySearch(List sortedList, var key, - { int compare(var a, var b) }) { +int binarySearch(List sortedList, value, { int compare(a, b) }) { if (compare == null) { - return _comparableBinarySearch(sortedList, key); + return _comparableBinarySearch(sortedList, value); } int min = 0; int max = sortedList.length; while (min < max) { int mid = min + ((max - min) >> 1); var element = sortedList[mid]; - int comp = compare(element, key); + int comp = compare(element, value); if (comp == 0) return mid; if (comp < 0) { min = mid + 1; @@ -59,6 +58,54 @@ int binarySearch(List sortedList, var key, return -1; } +/** Version of [lowerBound] optimized for comparable keys */ +int _comparableLowerBound(List list, Comparable value) { + int min = 0; + int max = list.length; + while (min < max) { + int mid = min + ((max - min) >> 1); + var element = list[mid]; + int comp = element.compareTo(value); + if (comp < 0) { + min = mid + 1; + } else { + max = mid; + } + } + return min; +} + +/** + * Returns the first position in [sortedList] that does not compare less than + * [value]. + * + * If the list isn't sorted according to the [compare] function, the result + * is unpredictable. + * + * If [compare] is omitted, it defaults to calling [Comparable.compareTo] on + * the objects. + * + * Returns [sortedList.length] if all the items in [sortedList] compare less + * than [value]. + */ +int lowerBound(List sortedList, value, { int compare(a, b) }) { + if (compare == null) { + return _comparableLowerBound(sortedList, value); + } + int min = 0; + int max = sortedList.length; + while (min < max) { + int mid = min + ((max - min) >> 1); + var element = sortedList[mid]; + int comp = compare(element, value); + if (comp < 0) { + min = mid + 1; + } else { + max = mid; + } + } + return min; +} /** * Shuffles a list randomly. diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 36423219..3595f9c0 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.2.0 +version: 1.2.1-dev author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection diff --git a/pkgs/collection/test/algorithms_test.dart b/pkgs/collection/test/algorithms_test.dart index 61fbf5be..a6391060 100644 --- a/pkgs/collection/test/algorithms_test.dart +++ b/pkgs/collection/test/algorithms_test.dart @@ -99,6 +99,60 @@ void main() { expect(binarySearch(l3, new C(12), compare: compareC), equals(-1)); }); + test("lowerbound0", () { + expect(lowerBound([], 2), equals(0)); + }); + + test("lowerbound1", () { + expect(lowerBound([5], 2), equals(0)); + expect(lowerBound([5], 5), equals(0)); + expect(lowerBound([5], 7), equals(1)); + }); + + test("lowerbound3", () { + expect(lowerBound([0, 5, 10], -1), equals(0)); + expect(lowerBound([0, 5, 10], 0), equals(0)); + expect(lowerBound([0, 5, 10], 2), equals(1)); + expect(lowerBound([0, 5, 10], 5), equals(1)); + expect(lowerBound([0, 5, 10], 7), equals(2)); + expect(lowerBound([0, 5, 10], 10), equals(2)); + expect(lowerBound([0, 5, 10], 12), equals(3)); + }); + + test("lowerboundRepeat", () { + expect(lowerBound([5, 5, 5], 5), equals(0)); + expect(lowerBound([0, 5, 5, 5, 10], 5), equals(1)); + }); + + test("lowerboundCompare0", () { + expect(lowerBound([], new C(2), compare: compareC), equals(0)); + }); + + test("lowerboundCompare1", () { + var l1 = [new C(5)]; + expect(lowerBound(l1, new C(2), compare: compareC), equals(0)); + expect(lowerBound(l1, new C(5), compare: compareC), equals(0)); + expect(lowerBound(l1, new C(7), compare: compareC), equals(1)); + }); + + test("lowerboundCompare3", () { + var l3 = [new C(0), new C(5), new C(10)]; + expect(lowerBound(l3, new C(-1), compare: compareC), equals(0)); + expect(lowerBound(l3, new C(0), compare: compareC), equals(0)); + expect(lowerBound(l3, new C(2), compare: compareC), equals(1)); + expect(lowerBound(l3, new C(5), compare: compareC), equals(1)); + expect(lowerBound(l3, new C(7), compare: compareC), equals(2)); + expect(lowerBound(l3, new C(10), compare: compareC), equals(2)); + expect(lowerBound(l3, new C(12), compare: compareC), equals(3)); + }); + + test("lowerboundCompareRepeat", () { + var l1 = [new C(5), new C(5), new C(5)]; + var l2 = [new C(0), new C(5), new C(5), new C(5), new C(10)]; + expect(lowerBound(l1, new C(5), compare: compareC), equals(0)); + expect(lowerBound(l2, new C(5), compare: compareC), equals(1)); + }); + test("insertionSortRandom", () { Random random = new Random(); for (int i = 0; i < 25; i++) { From 11119ebacd091f6dd355b0c3d29b0fa7d1e45675 Mon Sep 17 00:00:00 2001 From: Natalie Weizenbaum Date: Tue, 26 Jan 2016 14:20:37 -0800 Subject: [PATCH 033/235] Style tweak. --- pkgs/collection/test/canonicalized_map_test.dart | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/pkgs/collection/test/canonicalized_map_test.dart b/pkgs/collection/test/canonicalized_map_test.dart index 1bfeb2b0..33e663f3 100644 --- a/pkgs/collection/test/canonicalized_map_test.dart +++ b/pkgs/collection/test/canonicalized_map_test.dart @@ -23,9 +23,7 @@ void main() { }); test("set affects nothing for uncanonicalizable key", () { - expect(() { - map["foo"] = "value"; - }, returnsNormally); + map["foo"] = "value"; expect(map["foo"], isNull); expect(map.containsKey("foo"), isFalse); expect(map.length, equals(0)); From 98fbf6de6767c48cab72b928e68bf16becdf3b22 Mon Sep 17 00:00:00 2001 From: Natalie Weizenbaum Date: Tue, 26 Jan 2016 14:21:10 -0800 Subject: [PATCH 034/235] Add a CHANGELOG entry and bump the pubspec. --- pkgs/collection/CHANGELOG.md | 6 ++++-- pkgs/collection/pubspec.yaml | 2 +- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 04f883f3..4ca35a35 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,6 +1,8 @@ -## 1.2.1 +## 1.3.0 -* Add lowerBound to binary search for values that might not be present. +* Add `lowerBound` to binary search for values that might not be present. + +* Verify that the is valid for `CanonicalMap.[]`. ## 1.2.0 diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 3595f9c0..06799549 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.2.1-dev +version: 1.3.0 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection From 7308f5d2fdf351b1b3128a5691f1950d9bb7911a Mon Sep 17 00:00:00 2001 From: Alexandre Ardhuin Date: Wed, 27 Jan 2016 21:53:38 +0100 Subject: [PATCH 035/235] add a forward constructor in PriorityQueue to HeapPriorityQueue --- pkgs/collection/lib/priority_queue.dart | 13 +++++++++++++ pkgs/collection/test/priority_queue_test.dart | 10 ++++++++++ 2 files changed, 23 insertions(+) diff --git a/pkgs/collection/lib/priority_queue.dart b/pkgs/collection/lib/priority_queue.dart index e1a01777..62724457 100644 --- a/pkgs/collection/lib/priority_queue.dart +++ b/pkgs/collection/lib/priority_queue.dart @@ -12,6 +12,19 @@ import "dart:collection" show SplayTreeSet; * The queue allows adding elements, and removing them again in priority order. */ abstract class PriorityQueue { + /** + * Creates an empty [PriorityQueue]. + * + * The created [PriorityQueue] is a plain [HeapPriorityQueue]. + * + * The [comparison] is a [Comparator] used to compare the priority of + * elements. An element that compares as less than another element has + * a higher priority. + * + * If [comparison] is omitted, it defaults to [Comparable.compare]. + */ + factory PriorityQueue([int comparison(E e1, E e2)]) = HeapPriorityQueue; + /** * Number of elements in the queue. */ diff --git a/pkgs/collection/test/priority_queue_test.dart b/pkgs/collection/test/priority_queue_test.dart index 264bf94f..cda07489 100644 --- a/pkgs/collection/test/priority_queue_test.dart +++ b/pkgs/collection/test/priority_queue_test.dart @@ -8,10 +8,20 @@ import "package:collection/priority_queue.dart"; import "package:test/test.dart"; void main() { + testDefault(); testInt(() => new HeapPriorityQueue()); testCustom((comparator) => new HeapPriorityQueue(comparator)); } +void testDefault() { + test('new PriorityQueue() returns a HeapPriorityQueue', () { + expect(new PriorityQueue(), + new isInstanceOf>()); + }); + testInt(() => new PriorityQueue()); + testCustom((comparator) => new PriorityQueue(comparator)); +} + void testInt(PriorityQueue create()) { for (int count in [1, 5, 127, 128]) { testQueue("int:$count", From 6fd7e83afd20f43586ccc95b3c8246561e464804 Mon Sep 17 00:00:00 2001 From: Natalie Weizenbaum Date: Wed, 27 Jan 2016 14:21:23 -0800 Subject: [PATCH 036/235] Update the pubspec and add a CHANGELOG entry. --- pkgs/collection/CHANGELOG.md | 5 +++++ pkgs/collection/pubspec.yaml | 2 +- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 4ca35a35..13b41f80 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,8 @@ +## 1.4.0 + +* Add a `new PriorityQueue()` constructor that forwards to `new + HeapPriorityQueue()`. + ## 1.3.0 * Add `lowerBound` to binary search for values that might not be present. diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 06799549..a2ca5d67 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.3.0 +version: 1.4.0-dev author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection From fad0c3247025fffc8d906676f3676fd06f3bab0b Mon Sep 17 00:00:00 2001 From: Natalie Weizenbaum Date: Wed, 27 Jan 2016 15:43:48 -0800 Subject: [PATCH 037/235] Modernize the package's style. This moves the package to new-style doc comments, deprecates separate top-level libraries, and removes library tags. There's more that could be done, but this fixes most of the low-hanging fruit. R=lrn@google.com Review URL: https://codereview.chromium.org//1638163002 . --- pkgs/collection/CHANGELOG.md | 3 + pkgs/collection/README.md | 40 +- pkgs/collection/lib/algorithms.dart | 345 +---------- pkgs/collection/lib/collection.dart | 26 +- pkgs/collection/lib/equality.dart | 416 +------------ pkgs/collection/lib/iterable_zip.dart | 56 +- pkgs/collection/lib/priority_queue.dart | 406 +------------ pkgs/collection/lib/src/algorithms.dart | 323 ++++++++++ .../collection/lib/src/canonicalized_map.dart | 59 +- pkgs/collection/lib/src/comparators.dart | 2 - pkgs/collection/lib/src/equality.dart | 384 ++++++++++++ pkgs/collection/lib/src/iterable_zip.dart | 50 ++ pkgs/collection/lib/src/priority_queue.dart | 354 +++++++++++ pkgs/collection/lib/src/queue_list.dart | 46 +- .../lib/src/unmodifiable_wrappers.dart | 229 +++---- pkgs/collection/lib/src/utils.dart | 2 - pkgs/collection/lib/src/wrappers.dart | 524 ++++++++++++++++ pkgs/collection/lib/wrappers.dart | 564 +----------------- pkgs/collection/pubspec.yaml | 2 +- pkgs/collection/test/iterable_zip_test.dart | 4 +- pkgs/collection/test/priority_queue_test.dart | 11 +- .../test/unmodifiable_collection_test.dart | 3 +- pkgs/collection/test/wrapper_test.dart | 6 +- 23 files changed, 1801 insertions(+), 2054 deletions(-) create mode 100644 pkgs/collection/lib/src/algorithms.dart create mode 100644 pkgs/collection/lib/src/equality.dart create mode 100644 pkgs/collection/lib/src/iterable_zip.dart create mode 100644 pkgs/collection/lib/src/priority_queue.dart create mode 100644 pkgs/collection/lib/src/wrappers.dart diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 13b41f80..1ab3393f 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -3,6 +3,9 @@ * Add a `new PriorityQueue()` constructor that forwards to `new HeapPriorityQueue()`. +* Deprecate top-level libraries other than `package:collection/collection.dart`, + which exports these libraries' interfaces. + ## 1.3.0 * Add `lowerBound` to binary search for values that might not be present. diff --git a/pkgs/collection/README.md b/pkgs/collection/README.md index 8772e655..a7985fa4 100644 --- a/pkgs/collection/README.md +++ b/pkgs/collection/README.md @@ -1,47 +1,26 @@ -Contains a number libraries -with utility functions and classes that makes working with collections easier. - -## Using - -The `collection` package can be imported as separate libraries, or -in totality: - -```dart -import 'package:collection/algorithms.dart'; -import 'package:collection/equality.dart'; -import 'package:collection/iterable_zip.dart'; -import 'package:collection/priority_queue.dart'; -import 'package:collection/wrappers.dart'; -``` - -or - -```dart -import 'package:collection/collection.dart'; -``` +Contains utility functions and classes in the style of `dart:collection` to make +working with collections easier. ## Algorithms -The algorithms library contains functions that operate on lists. +The package contains functions that operate on lists. It contains ways to shuffle a `List`, do binary search on a sorted `List`, and various sorting algorithms. - ## Equality -The equality library gives a way to specify equality of elements and -collections. +The package provides a way to specify the equality of elements and collections. Collections in Dart have no inherent equality. Two sets are not equal, even if they contain exactly the same objects as elements. -The equality library provides a way to say define such an equality. In this +The `Equality` interface provides a way to say define such an equality. In this case, for example, `const SetEquality(const IdentityEquality())` is an equality that considers two sets equal exactly if they contain identical elements. -The library provides ways to define equalities on `Iterable`s, `List`s, `Set`s, -and `Map`s, as well as combinations of these, such as: +Equalities are provided for `Iterable`s, `List`s, `Set`s, and `Map`s, as well as +combinations of these, such as: ```dart const MapEquality(const IdentityEquality(), const ListEquality()); @@ -50,20 +29,17 @@ const MapEquality(const IdentityEquality(), const ListEquality()); This equality considers maps equal if they have identical keys, and the corresponding values are lists with equal (`operator==`) values. - ## Iterable Zip Utilities for "zipping" a list of iterables into an iterable of lists. - ## Priority Queue An interface and implementation of a priority queue. - ## Wrappers -The wrappers library contains classes that "wrap" a collection. +The package contains classes that "wrap" a collection. A wrapper class contains an object of the same type, and it forwards all methods to the wrapped object. diff --git a/pkgs/collection/lib/algorithms.dart b/pkgs/collection/lib/algorithms.dart index 80f01070..4d3ae8b5 100644 --- a/pkgs/collection/lib/algorithms.dart +++ b/pkgs/collection/lib/algorithms.dart @@ -2,347 +2,8 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -/** - * Operations on collections. - */ +/// Import `collection.dart` instead. +@Deprecated("Will be removed in collection 2.0.0.") library dart.pkg.collection.algorithms; -import "dart:math" show Random; - -/** Version of [binarySearch] optimized for comparable keys */ -int _comparableBinarySearch(List list, Comparable value) { - int min = 0; - int max = list.length; - while (min < max) { - int mid = min + ((max - min) >> 1); - var element = list[mid]; - int comp = element.compareTo(value); - if (comp == 0) return mid; - if (comp < 0) { - min = mid + 1; - } else { - max = mid; - } - } - return -1; -} - -/** - * Returns a position of the [value] in [sortedList], if it is there. - * - * If the list isn't sorted according to the [compare] function, the result - * is unpredictable. - * - * If [compare] is omitted, it defaults to calling [Comparable.compareTo] on - * the objects. - * - * Returns -1 if [value] is not in the list by default. - */ -int binarySearch(List sortedList, value, { int compare(a, b) }) { - if (compare == null) { - return _comparableBinarySearch(sortedList, value); - } - int min = 0; - int max = sortedList.length; - while (min < max) { - int mid = min + ((max - min) >> 1); - var element = sortedList[mid]; - int comp = compare(element, value); - if (comp == 0) return mid; - if (comp < 0) { - min = mid + 1; - } else { - max = mid; - } - } - return -1; -} - -/** Version of [lowerBound] optimized for comparable keys */ -int _comparableLowerBound(List list, Comparable value) { - int min = 0; - int max = list.length; - while (min < max) { - int mid = min + ((max - min) >> 1); - var element = list[mid]; - int comp = element.compareTo(value); - if (comp < 0) { - min = mid + 1; - } else { - max = mid; - } - } - return min; -} - -/** - * Returns the first position in [sortedList] that does not compare less than - * [value]. - * - * If the list isn't sorted according to the [compare] function, the result - * is unpredictable. - * - * If [compare] is omitted, it defaults to calling [Comparable.compareTo] on - * the objects. - * - * Returns [sortedList.length] if all the items in [sortedList] compare less - * than [value]. - */ -int lowerBound(List sortedList, value, { int compare(a, b) }) { - if (compare == null) { - return _comparableLowerBound(sortedList, value); - } - int min = 0; - int max = sortedList.length; - while (min < max) { - int mid = min + ((max - min) >> 1); - var element = sortedList[mid]; - int comp = compare(element, value); - if (comp < 0) { - min = mid + 1; - } else { - max = mid; - } - } - return min; -} - -/** - * Shuffles a list randomly. - * - * A sub-range of a list can be shuffled by providing [start] and [end]. - */ -void shuffle(List list, [int start = 0, int end = null]) { - Random random = new Random(); - if (end == null) end = list.length; - int length = end - start; - while (length > 1) { - int pos = random.nextInt(length); - length--; - var tmp1 = list[start + pos]; - list[start + pos] = list[start + length]; - list[start + length] = tmp1; - } -} - - -/** - * Reverses a list, or a part of a list, in-place. - */ -void reverse(List list, [int start = 0, int end = null]) { - if (end == null) end = list.length; - _reverse(list, start, end); -} - -// Internal helper function that assumes valid arguments. -void _reverse(List list, int start, int end) { - for (int i = start, j = end - 1; i < j; i++, j--) { - var tmp = list[i]; - list[i] = list[j]; - list[j] = tmp; - } -} - -/** - * Sort a list using insertion sort. - * - * Insertion sort is a simple sorting algorithm. For `n` elements it does on - * the order of `n * log(n)` comparisons but up to `n` squared moves. The - * sorting is performed in-place, without using extra memory. - * - * For short lists the many moves have less impact than the simple algorithm, - * and it is often the favored sorting algorithm for short lists. - * - * This insertion sort is stable: Equal elements end up in the same order - * as they started in. - */ -void insertionSort(List list, - { int compare(a, b), - int start: 0, - int end: null }) { - // If the same method could have both positional and named optional - // parameters, this should be (list, [start, end], {compare}). - if (end == null) end = list.length; - if (compare == null) compare = Comparable.compare; - _insertionSort(list, compare, start, end, start + 1); -} - -/** - * Internal helper function that assumes arguments correct. - * - * Assumes that the elements up to [sortedUntil] (not inclusive) are - * already sorted. The [sortedUntil] values should always be at least - * `start + 1`. - */ -void _insertionSort(List list, int compare(a, b), int start, int end, - int sortedUntil) { - for (int pos = sortedUntil; pos < end; pos++) { - int min = start; - int max = pos; - var element = list[pos]; - while (min < max) { - int mid = min + ((max - min) >> 1); - int comparison = compare(element, list[mid]); - if (comparison < 0) { - max = mid; - } else { - min = mid + 1; - } - } - list.setRange(min + 1, pos + 1, list, min); - list[min] = element; - } -} - -/** Limit below which merge sort defaults to insertion sort. */ -const int _MERGE_SORT_LIMIT = 32; - -/** - * Sorts a list, or a range of a list, using the merge sort algorithm. - * - * Merge-sorting works by splitting the job into two parts, sorting each - * recursively, and then merging the two sorted parts. - * - * This takes on the order of `n * log(n)` comparisons and moves to sort - * `n` elements, but requires extra space of about the same size as the list - * being sorted. - * - * This merge sort is stable: Equal elements end up in the same order - * as they started in. - */ -void mergeSort(List list, {int start: 0, int end: null, int compare(a, b)}) { - if (end == null) end = list.length; - if (compare == null) compare = Comparable.compare; - int length = end - start; - if (length < 2) return; - if (length < _MERGE_SORT_LIMIT) { - _insertionSort(list, compare, start, end, start + 1); - return; - } - // Special case the first split instead of directly calling - // _mergeSort, because the _mergeSort requires its target to - // be different from its source, and it requires extra space - // of the same size as the list to sort. - // This split allows us to have only half as much extra space, - // and it ends up in the original place. - int middle = start + ((end - start) >> 1); - int firstLength = middle - start; - int secondLength = end - middle; - // secondLength is always the same as firstLength, or one greater. - List scratchSpace = new List(secondLength); - _mergeSort(list, compare, middle, end, scratchSpace, 0); - int firstTarget = end - firstLength; - _mergeSort(list, compare, start, middle, list, firstTarget); - _merge(compare, - list, firstTarget, end, - scratchSpace, 0, secondLength, - list, start); -} - -/** - * Performs an insertion sort into a potentially different list than the - * one containing the original values. - * - * It will work in-place as well. - */ -void _movingInsertionSort(List list, int compare(a, b), int start, int end, - List target, int targetOffset) { - int length = end - start; - if (length == 0) return; - target[targetOffset] = list[start]; - for (int i = 1; i < length; i++) { - var element = list[start + i]; - int min = targetOffset; - int max = targetOffset + i; - while (min < max) { - int mid = min + ((max - min) >> 1); - if (compare(element, target[mid]) < 0) { - max = mid; - } else { - min = mid + 1; - } - } - target.setRange(min + 1, targetOffset + i + 1, - target, min); - target[min] = element; - } -} - -/** - * Sorts [list] from [start] to [end] into [target] at [targetOffset]. - * - * The `target` list must be able to contain the range from `start` to `end` - * after `targetOffset`. - * - * Allows target to be the same list as [list], as long as it's not - * overlapping the `start..end` range. - */ -void _mergeSort(List list, int compare(a, b), int start, int end, - List target, int targetOffset) { - int length = end - start; - if (length < _MERGE_SORT_LIMIT) { - _movingInsertionSort(list, compare, start, end, target, targetOffset); - return; - } - int middle = start + (length >> 1); - int firstLength = middle - start; - int secondLength = end - middle; - // Here secondLength >= firstLength (differs by at most one). - int targetMiddle = targetOffset + firstLength; - // Sort the second half into the end of the target area. - _mergeSort(list, compare, middle, end, - target, targetMiddle); - // Sort the first half into the end of the source area. - _mergeSort(list, compare, start, middle, - list, middle); - // Merge the two parts into the target area. - _merge(compare, - list, middle, middle + firstLength, - target, targetMiddle, targetMiddle + secondLength, - target, targetOffset); -} - -/** - * Merges two lists into a target list. - * - * One of the input lists may be positioned at the end of the target - * list. - * - * For equal object, elements from [firstList] are always preferred. - * This allows the merge to be stable if the first list contains elements - * that started out earlier than the ones in [secondList] - */ -void _merge(int compare(a, b), - List firstList, int firstStart, int firstEnd, - List secondList, int secondStart, int secondEnd, - List target, int targetOffset) { - // No empty lists reaches here. - assert(firstStart < firstEnd); - assert(secondStart < secondEnd); - int cursor1 = firstStart; - int cursor2 = secondStart; - var firstElement = firstList[cursor1++]; - var secondElement = secondList[cursor2++]; - while (true) { - if (compare(firstElement, secondElement) <= 0) { - target[targetOffset++] = firstElement; - if (cursor1 == firstEnd) break; // Flushing second list after loop. - firstElement = firstList[cursor1++]; - } else { - target[targetOffset++] = secondElement; - if (cursor2 != secondEnd) { - secondElement = secondList[cursor2++]; - continue; - } - // Second list empties first. Flushing first list here. - target[targetOffset++] = firstElement; - target.setRange(targetOffset, targetOffset + (firstEnd - cursor1), - firstList, cursor1); - return; - } - } - // First list empties first. Reached by break above. - target[targetOffset++] = secondElement; - target.setRange(targetOffset, targetOffset + (secondEnd - cursor2), - secondList, cursor2); -} +export "src/algorithms.dart"; diff --git a/pkgs/collection/lib/collection.dart b/pkgs/collection/lib/collection.dart index 6d451b87..b2c7e73c 100644 --- a/pkgs/collection/lib/collection.dart +++ b/pkgs/collection/lib/collection.dart @@ -2,26 +2,12 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -/** - * Exports all the individual parts of the collection-helper library. - * - * The sub-libraries of this package are: - * - * - `algorithms.dart`: Algorithms that work on lists (shuffle, binary search - * and various sorting algorithms). - * - `equality.dart`: Different notions of equality of collections. - * - `iterable_zip.dart`: Combining multiple iterables into one. - * - `priority_queue.dart`: Priority queue type and implementations. - * - `wrappers.dart`: Wrapper classes that delegate to a collection object. - * Includes unmodifiable views of collections. - */ -library dart.pkg.collection; - -export "algorithms.dart"; -export "equality.dart"; -export "iterable_zip.dart"; -export "priority_queue.dart"; +export "src/algorithms.dart"; export "src/canonicalized_map.dart"; export "src/comparators.dart"; +export "src/equality.dart"; +export "src/iterable_zip.dart"; +export "src/priority_queue.dart"; export "src/queue_list.dart"; -export "wrappers.dart"; +export "src/unmodifiable_wrappers.dart"; +export "src/wrappers.dart"; diff --git a/pkgs/collection/lib/equality.dart b/pkgs/collection/lib/equality.dart index 5911863f..0f5b51dc 100644 --- a/pkgs/collection/lib/equality.dart +++ b/pkgs/collection/lib/equality.dart @@ -2,418 +2,8 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -/** - * Defines equality relations on collections. - */ +/// Import `collection.dart` instead. +@Deprecated("Will be removed in collection 2.0.0.") library dart.pkg.collection.equality; -import "dart:collection"; - -const int _HASH_MASK = 0x7fffffff; - -/** - * A generic equality relation on objects. - */ -abstract class Equality { - const factory Equality() = DefaultEquality; - - /** - * Compare two elements for being equal. - * - * This should be a proper equality relation. - */ - bool equals(E e1, E e2); - - /** - * Get a hashcode of an element. - * - * The hashcode should be compatible with [equals], so that if - * `equals(a, b)` then `hash(a) == hash(b)`. - */ - int hash(E e); - - /** - * Test whether an object is a valid argument to [equals] and [hash]. - * - * Some implementations may be restricted to only work on specific types - * of objects. - */ - bool isValidKey(Object o); -} - -/** - * Equality of objects that compares only the natural equality of the objects. - * - * This equality uses the objects' own [Object.==] and [Object.hashCode] for - * the equality. - */ -class DefaultEquality implements Equality { - const DefaultEquality(); - bool equals(Object e1, Object e2) => e1 == e2; - int hash(Object e) => e.hashCode; - bool isValidKey(Object o) => true; -} - -/** - * Equality of objects that compares only the identity of the objects. - */ -class IdentityEquality implements Equality { - const IdentityEquality(); - bool equals(Object e1, Object e2) => identical(e1, e2); - int hash(Object e) => identityHashCode(e); - bool isValidKey(Object o) => true; -} - -/** - * Equality on iterables. - * - * Two iterables are equal if they have the same elements in the same order. - */ -class IterableEquality implements Equality> { - final Equality _elementEquality; - const IterableEquality([Equality elementEquality = - const DefaultEquality()]) - : _elementEquality = elementEquality; - - bool equals(Iterable elements1, Iterable elements2) { - if (identical(elements1, elements2)) return true; - if (elements1 == null || elements2 == null) return false; - Iterator it1 = elements1.iterator; - Iterator it2 = elements2.iterator; - while (true) { - bool hasNext = it1.moveNext(); - if (hasNext != it2.moveNext()) return false; - if (!hasNext) return true; - if (!_elementEquality.equals(it1.current, it2.current)) return false; - } - } - - int hash(Iterable elements) { - // Jenkins's one-at-a-time hash function. - int hash = 0; - for (E element in elements) { - int c = _elementEquality.hash(element); - hash = (hash + c) & _HASH_MASK; - hash = (hash + (hash << 10)) & _HASH_MASK; - hash ^= (hash >> 6); - } - hash = (hash + (hash << 3)) & _HASH_MASK; - hash ^= (hash >> 11); - hash = (hash + (hash << 15)) & _HASH_MASK; - return hash; - } - - bool isValidKey(Object o) => o is Iterable; -} - -/** - * Equality on lists. - * - * Two lists are equal if they have the same length and their elements - * at each index are equal. - * - * This is effectively the same as [IterableEquality] except that it - * accesses elements by index instead of through iteration. - */ -class ListEquality implements Equality> { - final Equality _elementEquality; - const ListEquality([Equality elementEquality = const DefaultEquality()]) - : _elementEquality = elementEquality; - - bool equals(List e1, List e2) { - if (identical(e1, e2)) return true; - if (e1 == null || e2 == null) return false; - int length = e1.length; - if (length != e2.length) return false; - for (int i = 0; i < length; i++) { - if (!_elementEquality.equals(e1[i], e2[i])) return false; - } - return true; - } - - int hash(List e) { - // Jenkins's one-at-a-time hash function. - // This code is almost identical to the one in IterableEquality, except - // that it uses indexing instead of iterating to get the elements. - int hash = 0; - for (int i = 0; i < e.length; i++) { - int c = _elementEquality.hash(e[i]); - hash = (hash + c) & _HASH_MASK; - hash = (hash + (hash << 10)) & _HASH_MASK; - hash ^= (hash >> 6); - } - hash = (hash + (hash << 3)) & _HASH_MASK; - hash ^= (hash >> 11); - hash = (hash + (hash << 15)) & _HASH_MASK; - return hash; - } - - bool isValidKey(Object o) => o is List; -} - -abstract class _UnorderedEquality> - implements Equality { - final Equality _elementEquality; - - const _UnorderedEquality(this._elementEquality); - - bool equals(T e1, T e2) { - if (identical(e1, e2)) return true; - if (e1 == null || e2 == null) return false; - HashMap counts = new HashMap( - equals: _elementEquality.equals, - hashCode: _elementEquality.hash, - isValidKey: _elementEquality.isValidKey); - int length = 0; - for (var e in e1) { - int count = counts[e]; - if (count == null) count = 0; - counts[e] = count + 1; - length++; - } - for (var e in e2) { - int count = counts[e]; - if (count == null || count == 0) return false; - counts[e] = count - 1; - length--; - } - return length == 0; - } - - int hash(T e) { - int hash = 0; - for (E element in e) { - int c = _elementEquality.hash(element); - hash = (hash + c) & _HASH_MASK; - } - hash = (hash + (hash << 3)) & _HASH_MASK; - hash ^= (hash >> 11); - hash = (hash + (hash << 15)) & _HASH_MASK; - return hash; - } -} - -/** - * Equality of the elements of two iterables without considering order. - * - * Two iterables are considered equal if they have the same number of elements, - * and the elements of one set can be paired with the elements - * of the other iterable, so that each pair are equal. - */ -class UnorderedIterableEquality extends _UnorderedEquality> { - const UnorderedIterableEquality( - [Equality elementEquality = const DefaultEquality()]) - : super(elementEquality); - - bool isValidKey(Object o) => o is Iterable; -} - -/** - * Equality of sets. - * - * Two sets are considered equal if they have the same number of elements, - * and the elements of one set can be paired with the elements - * of the other set, so that each pair are equal. - * - * This equality behaves the same as [UnorderedIterableEquality] except that - * it expects sets instead of iterables as arguments. - */ -class SetEquality extends _UnorderedEquality> { - const SetEquality( - [Equality elementEquality = const DefaultEquality()]) - : super(elementEquality); - - bool isValidKey(Object o) => o is Set; -} - -/** - * Internal class used by [MapEquality]. - * - * The class represents a map entry as a single object, - * using a combined hashCode and equality of the key and value. - */ -class _MapEntry { - final MapEquality equality; - final key; - final value; - _MapEntry(this.equality, this.key, this.value); - - int get hashCode => - (3 * equality._keyEquality.hash(key) + - 7 * equality._valueEquality.hash(value)) & _HASH_MASK; - - bool operator==(Object other) { - if (other is! _MapEntry) return false; - _MapEntry otherEntry = other; - return equality._keyEquality.equals(key, otherEntry.key) && - equality._valueEquality.equals(value, otherEntry.value); - - } -} - -/** - * Equality on maps. - * - * Two maps are equal if they have the same number of entries, and if the - * entries of the two maps are pairwise equal on both key and value. - */ -class MapEquality implements Equality> { - final Equality _keyEquality; - final Equality _valueEquality; - const MapEquality({ Equality keys : const DefaultEquality(), - Equality values : const DefaultEquality() }) - : _keyEquality = keys, _valueEquality = values; - - bool equals(Map e1, Map e2) { - if (identical(e1, e2)) return true; - if (e1 == null || e2 == null) return false; - int length = e1.length; - if (length != e2.length) return false; - Map<_MapEntry, int> equalElementCounts = new HashMap(); - for (K key in e1.keys) { - _MapEntry entry = new _MapEntry(this, key, e1[key]); - int count = equalElementCounts[entry]; - if (count == null) count = 0; - equalElementCounts[entry] = count + 1; - } - for (K key in e2.keys) { - _MapEntry entry = new _MapEntry(this, key, e2[key]); - int count = equalElementCounts[entry]; - if (count == null || count == 0) return false; - equalElementCounts[entry] = count - 1; - } - return true; - } - - int hash(Map map) { - int hash = 0; - for (K key in map.keys) { - int keyHash = _keyEquality.hash(key); - int valueHash = _valueEquality.hash(map[key]); - hash = (hash + 3 * keyHash + 7 * valueHash) & _HASH_MASK; - } - hash = (hash + (hash << 3)) & _HASH_MASK; - hash ^= (hash >> 11); - hash = (hash + (hash << 15)) & _HASH_MASK; - return hash; - } - - bool isValidKey(Object o) => o is Map; -} - -/** - * Combines several equalities into a single equality. - * - * Tries each equality in order, using [Equality.isValidKey], and returns - * the result of the first equality that applies to the argument or arguments. - * - * For `equals`, the first equality that matches the first argument is used, - * and if the second argument of `equals` is not valid for that equality, - * it returns false. - * - * Because the equalities are tried in order, they should generally work on - * disjoint types. Otherwise the multi-equality may give inconsistent results - * for `equals(e1, e2)` and `equals(e2, e1)`. This can happen if one equality - * considers only `e1` a valid key, and not `e2`, but an equality which is - * checked later, allows both. - */ -class MultiEquality implements Equality { - final Iterable> _equalities; - - const MultiEquality(Iterable> equalities) - : _equalities = equalities; - - bool equals(E e1, E e2) { - for (Equality eq in _equalities) { - if (eq.isValidKey(e1)) return eq.isValidKey(e2) && eq.equals(e1, e2); - } - return false; - } - - int hash(E e) { - for (Equality eq in _equalities) { - if (eq.isValidKey(e)) return eq.hash(e); - } - return -1; - } - - bool isValidKey(Object o) { - for (Equality eq in _equalities) { - if (eq.isValidKey(o)) return true; - } - return false; - } -} - -/** - * Deep equality on collections. - * - * Recognizes lists, sets, iterables and maps and compares their elements using - * deep equality as well. - * - * Non-iterable/map objects are compared using a configurable base equality. - * - * Works in one of two modes: ordered or unordered. - * - * In ordered mode, lists and iterables are required to have equal elements - * in the same order. In unordered mode, the order of elements in iterables - * and lists are not important. - * - * A list is only equal to another list, likewise for sets and maps. All other - * iterables are compared as iterables only. - */ -class DeepCollectionEquality implements Equality { - final Equality _base; - final bool _unordered; - const DeepCollectionEquality([Equality base = const DefaultEquality()]) - : _base = base, _unordered = false; - - /** - * Creates a deep equality on collections where the order of lists and - * iterables are not considered important. That is, lists and iterables are - * treated as unordered iterables. - */ - const DeepCollectionEquality.unordered( - [Equality base = const DefaultEquality()]) - : _base = base, _unordered = true; - - bool equals(e1, e2) { - if (e1 is Set) { - if (e2 is! Set) return false; - return new SetEquality(this).equals(e1, e2); - } - if (e1 is Map) { - if (e2 is! Map) return false; - return new MapEquality(keys: this, values: this).equals(e1, e2); - } - if (!_unordered) { - if (e1 is List) { - if (e2 is! List) return false; - return new ListEquality(this).equals(e1, e2); - } - if (e1 is Iterable) { - if (e2 is! Iterable) return false; - return new IterableEquality(this).equals(e1, e2); - } - } else if (e1 is Iterable) { - if (e2 is! Iterable) return false; - if (e1 is List != e2 is List) return false; - return new UnorderedIterableEquality(this).equals(e1, e2); - } - return _base.equals(e1, e2); - } - - int hash(Object o) { - if (o is Set) return new SetEquality(this).hash(o); - if (o is Map) return new MapEquality(keys: this, values: this).hash(o); - if (!_unordered) { - if (o is List) return new ListEquality(this).hash(o); - if (o is Iterable) return new IterableEquality(this).hash(o); - } else if (o is Iterable) { - return new UnorderedIterableEquality(this).hash(o); - } - return _base.hash(o); - } - - bool isValidKey(Object o) => o is Iterable || o is Map || _base.isValidKey(o); -} +export "src/equality.dart"; diff --git a/pkgs/collection/lib/iterable_zip.dart b/pkgs/collection/lib/iterable_zip.dart index 772b07e6..34e18ef7 100644 --- a/pkgs/collection/lib/iterable_zip.dart +++ b/pkgs/collection/lib/iterable_zip.dart @@ -2,58 +2,8 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -/** - * Zipping multiple iterables into one iterable of tuples of values. - */ +/// Import `collection.dart` instead. +@Deprecated("Will be removed in collection 2.0.0.") library dart.pkg.collection.iterable_zip; -import "dart:collection" show IterableBase; - -/** - * Iterable that iterates over lists of values from other iterables. - * - * When [iterator] is read, an [Iterator] is created for each [Iterable] in - * the [Iterable] passed to the constructor. - * - * As long as all these iterators have a next value, those next values are - * combined into a single list, which becomes the next value of this - * [Iterable]'s [Iterator]. As soon as any of the iterators run out, - * the zipped iterator also stops. - */ -class IterableZip extends IterableBase { - final Iterable _iterables; - IterableZip(Iterable iterables) - : this._iterables = iterables; - - /** - * Returns an iterator that combines values of the iterables' iterators - * as long as they all have values. - */ - Iterator get iterator { - List iterators = _iterables.map((x) => x.iterator).toList(growable: false); - // TODO(lrn): Return an empty iterator directly if iterators is empty? - return new _IteratorZip(iterators); - } -} - -class _IteratorZip implements Iterator { - final List _iterators; - List _current; - _IteratorZip(List iterators) : _iterators = iterators; - bool moveNext() { - if (_iterators.isEmpty) return false; - for (int i = 0; i < _iterators.length; i++) { - if (!_iterators[i].moveNext()) { - _current = null; - return false; - } - } - _current = new List(_iterators.length); - for (int i = 0; i < _iterators.length; i++) { - _current[i] = _iterators[i].current; - } - return true; - } - - List get current => _current; -} +export "src/iterable_zip.dart"; diff --git a/pkgs/collection/lib/priority_queue.dart b/pkgs/collection/lib/priority_queue.dart index 62724457..f2a4703e 100644 --- a/pkgs/collection/lib/priority_queue.dart +++ b/pkgs/collection/lib/priority_queue.dart @@ -2,408 +2,8 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. +/// Import `collection.dart` instead. +@Deprecated("Will be removed in collection 2.0.0.") library dart.pkg.collection.priority_queue; -import "dart:collection" show SplayTreeSet; - -/** - * A priority queue is a priority based work-list of elements. - * - * The queue allows adding elements, and removing them again in priority order. - */ -abstract class PriorityQueue { - /** - * Creates an empty [PriorityQueue]. - * - * The created [PriorityQueue] is a plain [HeapPriorityQueue]. - * - * The [comparison] is a [Comparator] used to compare the priority of - * elements. An element that compares as less than another element has - * a higher priority. - * - * If [comparison] is omitted, it defaults to [Comparable.compare]. - */ - factory PriorityQueue([int comparison(E e1, E e2)]) = HeapPriorityQueue; - - /** - * Number of elements in the queue. - */ - int get length; - - /** - * Whether the queue is empty. - */ - bool get isEmpty; - - /** - * Whether the queue has any elements. - */ - bool get isNotEmpty; - - /** - * Checks if [object] is in the queue. - * - * Returns true if the element is found. - */ - bool contains(E object); - - /** - * Adds element to the queue. - * - * The element will become the next to be removed by [removeFirst] - * when all elements with higher priority have been removed. - */ - void add(E element); - - /** - * Adds all [elements] to the queue. - */ - void addAll(Iterable elements); - - /** - * Returns the next element that will be returned by [removeFirst]. - * - * The element is not removed from the queue. - * - * The queue must not be empty when this method is called. - */ - E get first; - - /** - * Removes and returns the element with the highest priority. - * - * Repeatedly calling this method, without adding element in between, - * is guaranteed to return elements in non-decreasing order as, specified by - * [comparison]. - * - * The queue must not be empty when this method is called. - */ - E removeFirst(); - - /** - * Removes an element that compares equal to [element] in the queue. - * - * Returns true if an element is found and removed, - * and false if no equal element is found. - */ - bool remove(E element); - - /** - * Removes all the elements from this queue and returns them. - * - * The returned iterable has no specified order. - */ - Iterable removeAll(); - - /** - * Removes all the elements from this queue. - */ - void clear(); - - /** - * Returns a list of the elements of this queue in priority order. - * - * The queue is not modified. - * - * The order is the order that the elements would be in if they were - * removed from this queue using [removeFirst]. - */ - List toList(); - - /** - * Return a comparator based set using the comparator of this queue. - * - * The queue is not modified. - * - * The returned [Set] is currently a [SplayTreeSet], - * but this may change as other ordered sets are implemented. - * - * The set contains all the elements of this queue. - * If an element occurs more than once in the queue, - * the set will contain it only once. - */ - Set toSet(); -} - -/** - * Heap based priority queue. - * - * The elements are kept in a heap structure, - * where the element with the highest priority is immediately accessible, - * and modifying a single element takes - * logarithmic time in the number of elements on average. - * - * * The [add] and [removeFirst] operations take amortized logarithmic time, - * O(log(n)), but may occasionally take linear time when growing the capacity - * of the heap. - * * The [addAll] operation works as doing repeated [add] operations. - * * The [first] getter takes constant time, O(1). - * * The [clear] and [removeAll] methods also take constant time, O(1). - * * The [contains] and [remove] operations may need to search the entire - * queue for the elements, taking O(n) time. - * * The [toList] operation effectively sorts the elements, taking O(n*log(n)) - * time. - * * The [toSet] operation effectively adds each element to the new set, taking - * an expected O(n*log(n)) time. - */ -class HeapPriorityQueue implements PriorityQueue { - /** - * Initial capacity of a queue when created, or when added to after a [clear]. - * - * Number can be any positive value. Picking a size that gives a whole - * number of "tree levels" in the heap is only done for aesthetic reasons. - */ - static const int _INITIAL_CAPACITY = 7; - - /** - * The comparison being used to compare the priority of elements. - */ - final Comparator comparison; - - /** - * List implementation of a heap. - */ - List _queue = new List(_INITIAL_CAPACITY); - - /** - * Number of elements in queue. - * - * The heap is implemented in the first [_length] entries of [_queue]. - */ - int _length = 0; - - /** - * Create a new priority queue. - * - * The [comparison] is a [Comparator] used to compare the priority of - * elements. An element that compares as less than another element has - * a higher priority. - * - * If [comparison] is omitted, it defaults to [Comparable.compare]. - */ - HeapPriorityQueue([int comparison(E e1, E e2)]) - : comparison = (comparison != null) ? comparison : Comparable.compare; - - void add(E element) { - _add(element); - } - - void addAll(Iterable elements) { - for (E element in elements) { - _add(element); - } - } - - void clear() { - _queue = const []; - _length = 0; - } - - bool contains(E object) { - return _locate(object) >= 0; - } - - E get first { - if (_length == 0) throw new StateError("No such element"); - return _queue[0]; - } - - bool get isEmpty => _length == 0; - - bool get isNotEmpty => _length != 0; - - int get length => _length; - - bool remove(E element) { - int index = _locate(element); - if (index < 0) return false; - E last = _removeLast(); - if (index < _length) { - int comp = comparison(last, element); - if (comp <= 0) { - _bubbleUp(last, index); - } else { - _bubbleDown(last, index); - } - } - return true; - } - - Iterable removeAll() { - List result = _queue; - int length = _length; - _queue = const []; - _length = 0; - return result.take(length); - } - - E removeFirst() { - if (_length == 0) throw new StateError("No such element"); - E result = _queue[0]; - E last = _removeLast(); - if (_length > 0) { - _bubbleDown(last, 0); - } - return result; - } - - List toList() { - List list = new List()..length = _length; - list.setRange(0, _length, _queue); - list.sort(comparison); - return list; - } - - Set toSet() { - Set set = new SplayTreeSet(comparison); - for (int i = 0; i < _length; i++) { - set.add(_queue[i]); - } - return set; - } - - /** - * Returns some representation of the queue. - * - * The format isn't significant, and may change in the future. - */ - String toString() { - return _queue.take(_length).toString(); - } - - /** - * Add element to the queue. - * - * Grows the capacity if the backing list is full. - */ - void _add(E element) { - if (_length == _queue.length) _grow(); - _bubbleUp(element, _length++); - } - - /** - * Find the index of an object in the heap. - * - * Returns -1 if the object is not found. - */ - int _locate(E object) { - if (_length == 0) return -1; - // Count positions from one instead of zero. This gives the numbers - // some nice properties. For example, all right children are odd, - // their left sibling is even, and the parent is found by shifting - // right by one. - // Valid range for position is [1.._length], inclusive. - int position = 1; - // Pre-order depth first search, omit child nodes if the current - // node has lower priority than [object], because all nodes lower - // in the heap will also have lower priority. - do { - int index = position - 1; - E element = _queue[index]; - int comp = comparison(element, object); - if (comp == 0) return index; - if (comp < 0) { - // Element may be in subtree. - // Continue with the left child, if it is there. - int leftChildPosition = position * 2; - if (leftChildPosition <= _length) { - position = leftChildPosition; - continue; - } - } - // Find the next right sibling or right ancestor sibling. - do { - while (position.isOdd) { - // While position is a right child, go to the parent. - position >>= 1; - } - // Then go to the right sibling of the left-child. - position += 1; - } while (position > _length); // Happens if last element is a left child. - } while (position != 1); // At root again. Happens for right-most element. - return -1; - } - - E _removeLast() { - int newLength = _length - 1; - E last = _queue[newLength]; - _queue[newLength] = null; - _length = newLength; - return last; - } - - /** - * Place [element] in heap at [index] or above. - * - * Put element into the empty cell at `index`. - * While the `element` has higher priority than the - * parent, swap it with the parent. - */ - void _bubbleUp(E element, int index) { - while (index > 0) { - int parentIndex = (index - 1) ~/ 2; - E parent = _queue[parentIndex]; - if (comparison(element, parent) > 0) break; - _queue[index] = parent; - index = parentIndex; - } - _queue[index] = element; - } - - /** - * Place [element] in heap at [index] or above. - * - * Put element into the empty cell at `index`. - * While the `element` has lower priority than either child, - * swap it with the highest priority child. - */ - void _bubbleDown(E element, int index) { - int rightChildIndex = index * 2 + 2; - while (rightChildIndex < _length) { - int leftChildIndex = rightChildIndex - 1; - E leftChild = _queue[leftChildIndex]; - E rightChild = _queue[rightChildIndex]; - int comp = comparison(leftChild, rightChild); - int minChildIndex; - E minChild; - if (comp < 0) { - minChild = leftChild; - minChildIndex = leftChildIndex; - } else { - minChild = rightChild; - minChildIndex = rightChildIndex; - } - comp = comparison(element, minChild); - if (comp <= 0) { - _queue[index] = element; - return; - } - _queue[index] = minChild; - index = minChildIndex; - rightChildIndex = index * 2 + 2; - } - int leftChildIndex = rightChildIndex - 1; - if (leftChildIndex < _length) { - E child = _queue[leftChildIndex]; - int comp = comparison(element, child); - if (comp > 0) { - _queue[index] = child; - index = leftChildIndex; - } - } - _queue[index] = element; - } - - /** - * Grows the capacity of the list holding the heap. - * - * Called when the list is full. - */ - void _grow() { - int newCapacity = _queue.length * 2 + 1; - if (newCapacity < _INITIAL_CAPACITY) newCapacity = _INITIAL_CAPACITY; - List newQueue = new List(newCapacity); - newQueue.setRange(0, _length, _queue); - _queue = newQueue; - } -} +export "src/priority_queue.dart"; diff --git a/pkgs/collection/lib/src/algorithms.dart b/pkgs/collection/lib/src/algorithms.dart new file mode 100644 index 00000000..2b66d7df --- /dev/null +++ b/pkgs/collection/lib/src/algorithms.dart @@ -0,0 +1,323 @@ +// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import "dart:math" as math; + +/// Version of [binarySearch] optimized for comparable keys +int _comparableBinarySearch(List list, Comparable value) { + int min = 0; + int max = list.length; + while (min < max) { + int mid = min + ((max - min) >> 1); + var element = list[mid]; + int comp = element.compareTo(value); + if (comp == 0) return mid; + if (comp < 0) { + min = mid + 1; + } else { + max = mid; + } + } + return -1; +} + +/// Returns a position of the [value] in [sortedList], if it is there. +/// +/// If the list isn't sorted according to the [compare] function, the result +/// is unpredictable. +/// +/// If [compare] is omitted, it defaults to calling [Comparable.compareTo] on +/// the objects. +/// +/// Returns -1 if [value] is not in the list by default. +int binarySearch(List sortedList, value, { int compare(a, b) }) { + if (compare == null) { + return _comparableBinarySearch(sortedList, value); + } + int min = 0; + int max = sortedList.length; + while (min < max) { + int mid = min + ((max - min) >> 1); + var element = sortedList[mid]; + int comp = compare(element, value); + if (comp == 0) return mid; + if (comp < 0) { + min = mid + 1; + } else { + max = mid; + } + } + return -1; +} + +/// Version of [lowerBound] optimized for comparable keys +int _comparableLowerBound(List list, Comparable value) { + int min = 0; + int max = list.length; + while (min < max) { + int mid = min + ((max - min) >> 1); + var element = list[mid]; + int comp = element.compareTo(value); + if (comp < 0) { + min = mid + 1; + } else { + max = mid; + } + } + return min; +} + +/// Returns the first position in [sortedList] that does not compare less than +/// [value]. +/// +/// If the list isn't sorted according to the [compare] function, the result +/// is unpredictable. +/// +/// If [compare] is omitted, it defaults to calling [Comparable.compareTo] on +/// the objects. +/// +/// Returns [sortedList.length] if all the items in [sortedList] compare less +/// than [value]. +int lowerBound(List sortedList, value, { int compare(a, b) }) { + if (compare == null) { + return _comparableLowerBound(sortedList, value); + } + int min = 0; + int max = sortedList.length; + while (min < max) { + int mid = min + ((max - min) >> 1); + var element = sortedList[mid]; + int comp = compare(element, value); + if (comp < 0) { + min = mid + 1; + } else { + max = mid; + } + } + return min; +} + +/// Shuffles a list randomly. +/// +/// A sub-range of a list can be shuffled by providing [start] and [end]. +void shuffle(List list, [int start = 0, int end = null]) { + var random = new math.Random(); + if (end == null) end = list.length; + int length = end - start; + while (length > 1) { + int pos = random.nextInt(length); + length--; + var tmp1 = list[start + pos]; + list[start + pos] = list[start + length]; + list[start + length] = tmp1; + } +} + + +/// Reverses a list, or a part of a list, in-place. +void reverse(List list, [int start = 0, int end = null]) { + if (end == null) end = list.length; + _reverse(list, start, end); +} + +/// Internal helper function that assumes valid arguments. +void _reverse(List list, int start, int end) { + for (int i = start, j = end - 1; i < j; i++, j--) { + var tmp = list[i]; + list[i] = list[j]; + list[j] = tmp; + } +} + +/// Sort a list using insertion sort. +/// +/// Insertion sort is a simple sorting algorithm. For `n` elements it does on +/// the order of `n * log(n)` comparisons but up to `n` squared moves. The +/// sorting is performed in-place, without using extra memory. +/// +/// For short lists the many moves have less impact than the simple algorithm, +/// and it is often the favored sorting algorithm for short lists. +/// +/// This insertion sort is stable: Equal elements end up in the same order +/// as they started in. +void insertionSort(List list, + { int compare(a, b), + int start: 0, + int end: null }) { + // If the same method could have both positional and named optional + // parameters, this should be (list, [start, end], {compare}). + if (end == null) end = list.length; + if (compare == null) compare = Comparable.compare; + _insertionSort(list, compare, start, end, start + 1); +} + +/// Internal helper function that assumes arguments correct. +/// +/// Assumes that the elements up to [sortedUntil] (not inclusive) are +/// already sorted. The [sortedUntil] values should always be at least +/// `start + 1`. +void _insertionSort(List list, int compare(a, b), int start, int end, + int sortedUntil) { + for (int pos = sortedUntil; pos < end; pos++) { + int min = start; + int max = pos; + var element = list[pos]; + while (min < max) { + int mid = min + ((max - min) >> 1); + int comparison = compare(element, list[mid]); + if (comparison < 0) { + max = mid; + } else { + min = mid + 1; + } + } + list.setRange(min + 1, pos + 1, list, min); + list[min] = element; + } +} + +/// Limit below which merge sort defaults to insertion sort. +const int _MERGE_SORT_LIMIT = 32; + +/// Sorts a list, or a range of a list, using the merge sort algorithm. +/// +/// Merge-sorting works by splitting the job into two parts, sorting each +/// recursively, and then merging the two sorted parts. +/// +/// This takes on the order of `n * log(n)` comparisons and moves to sort +/// `n` elements, but requires extra space of about the same size as the list +/// being sorted. +/// +/// This merge sort is stable: Equal elements end up in the same order +/// as they started in. +void mergeSort(List list, {int start: 0, int end: null, int compare(a, b)}) { + if (end == null) end = list.length; + if (compare == null) compare = Comparable.compare; + int length = end - start; + if (length < 2) return; + if (length < _MERGE_SORT_LIMIT) { + _insertionSort(list, compare, start, end, start + 1); + return; + } + // Special case the first split instead of directly calling + // _mergeSort, because the _mergeSort requires its target to + // be different from its source, and it requires extra space + // of the same size as the list to sort. + // This split allows us to have only half as much extra space, + // and it ends up in the original place. + int middle = start + ((end - start) >> 1); + int firstLength = middle - start; + int secondLength = end - middle; + // secondLength is always the same as firstLength, or one greater. + List scratchSpace = new List(secondLength); + _mergeSort(list, compare, middle, end, scratchSpace, 0); + int firstTarget = end - firstLength; + _mergeSort(list, compare, start, middle, list, firstTarget); + _merge(compare, + list, firstTarget, end, + scratchSpace, 0, secondLength, + list, start); +} + +/// Performs an insertion sort into a potentially different list than the +/// one containing the original values. +/// +/// It will work in-place as well. +void _movingInsertionSort(List list, int compare(a, b), int start, int end, + List target, int targetOffset) { + int length = end - start; + if (length == 0) return; + target[targetOffset] = list[start]; + for (int i = 1; i < length; i++) { + var element = list[start + i]; + int min = targetOffset; + int max = targetOffset + i; + while (min < max) { + int mid = min + ((max - min) >> 1); + if (compare(element, target[mid]) < 0) { + max = mid; + } else { + min = mid + 1; + } + } + target.setRange(min + 1, targetOffset + i + 1, + target, min); + target[min] = element; + } +} + +/// Sorts [list] from [start] to [end] into [target] at [targetOffset]. +/// +/// The `target` list must be able to contain the range from `start` to `end` +/// after `targetOffset`. +/// +/// Allows target to be the same list as [list], as long as it's not +/// overlapping the `start..end` range. +void _mergeSort(List list, int compare(a, b), int start, int end, + List target, int targetOffset) { + int length = end - start; + if (length < _MERGE_SORT_LIMIT) { + _movingInsertionSort(list, compare, start, end, target, targetOffset); + return; + } + int middle = start + (length >> 1); + int firstLength = middle - start; + int secondLength = end - middle; + // Here secondLength >= firstLength (differs by at most one). + int targetMiddle = targetOffset + firstLength; + // Sort the second half into the end of the target area. + _mergeSort(list, compare, middle, end, + target, targetMiddle); + // Sort the first half into the end of the source area. + _mergeSort(list, compare, start, middle, + list, middle); + // Merge the two parts into the target area. + _merge(compare, + list, middle, middle + firstLength, + target, targetMiddle, targetMiddle + secondLength, + target, targetOffset); +} + +/// Merges two lists into a target list. +/// +/// One of the input lists may be positioned at the end of the target +/// list. +/// +/// For equal object, elements from [firstList] are always preferred. +/// This allows the merge to be stable if the first list contains elements +/// that started out earlier than the ones in [secondList] +void _merge(int compare(a, b), + List firstList, int firstStart, int firstEnd, + List secondList, int secondStart, int secondEnd, + List target, int targetOffset) { + // No empty lists reaches here. + assert(firstStart < firstEnd); + assert(secondStart < secondEnd); + int cursor1 = firstStart; + int cursor2 = secondStart; + var firstElement = firstList[cursor1++]; + var secondElement = secondList[cursor2++]; + while (true) { + if (compare(firstElement, secondElement) <= 0) { + target[targetOffset++] = firstElement; + if (cursor1 == firstEnd) break; // Flushing second list after loop. + firstElement = firstList[cursor1++]; + } else { + target[targetOffset++] = secondElement; + if (cursor2 != secondEnd) { + secondElement = secondList[cursor2++]; + continue; + } + // Second list empties first. Flushing first list here. + target[targetOffset++] = firstElement; + target.setRange(targetOffset, targetOffset + (firstEnd - cursor1), + firstList, cursor1); + return; + } + } + // First list empties first. Reached by break above. + target[targetOffset++] = secondElement; + target.setRange(targetOffset, targetOffset + (secondEnd - cursor2), + secondList, cursor2); +} diff --git a/pkgs/collection/lib/src/canonicalized_map.dart b/pkgs/collection/lib/src/canonicalized_map.dart index 21fb83dc..d967f70d 100644 --- a/pkgs/collection/lib/src/canonicalized_map.dart +++ b/pkgs/collection/lib/src/canonicalized_map.dart @@ -2,22 +2,19 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -library dart.pkg.collection.canonicalized_map; - import 'dart:collection'; import 'utils.dart'; -/** - * A map whose keys are converted to canonical values of type `C`. - * - * This is useful for using case-insensitive String keys, for example. It's more - * efficient than a [LinkedHashMap] with a custom equality operator because it - * only canonicalizes each key once, rather than doing so for each comparison. - * - * By default, `null` is allowed as a key. It can be forbidden via the - * `isValidKey` parameter. - */ +/// A map whose keys are converted to canonical values of type `C`. +/// +/// This is useful for using case-insensitive String keys, for example. It's +/// more efficient than a [LinkedHashMap] with a custom equality operator +/// because it only canonicalizes each key once, rather than doing so for each +/// comparison. +/// +/// By default, `null` is allowed as a key. It can be forbidden via the +/// `isValidKey` parameter. class CanonicalizedMap implements Map { final Function _canonicalize; @@ -25,31 +22,27 @@ class CanonicalizedMap implements Map { final _base = new Map>(); - /** - * Creates an empty canonicalized map. - * - * The [canonicalize] function should return the canonical value for the given - * key. Keys with the same canonical value are considered equivalent. - * - * The [isValidKey] function is called before calling [canonicalize] for - * methods that take arbitrary objects. It can be used to filter out keys that - * can't be canonicalized. - */ + /// Creates an empty canonicalized map. + /// + /// The [canonicalize] function should return the canonical value for the + /// given key. Keys with the same canonical value are considered equivalent. + /// + /// The [isValidKey] function is called before calling [canonicalize] for + /// methods that take arbitrary objects. It can be used to filter out keys + /// that can't be canonicalized. CanonicalizedMap(C canonicalize(K key), {bool isValidKey(Object key)}) : _canonicalize = canonicalize, _isValidKeyFn = isValidKey; - /** - * Creates a canonicalized map that is initialized with the key/value pairs of - * [other]. - * - * The [canonicalize] function should return the canonical value for the given - * key. Keys with the same canonical value are considered equivalent. - * - * The [isValidKey] function is called before calling [canonicalize] for - * methods that take arbitrary objects. It can be used to filter out keys that - * can't be canonicalized. - */ + /// Creates a canonicalized map that is initialized with the key/value pairs + /// of [other]. + /// + /// The [canonicalize] function should return the canonical value for the + /// given key. Keys with the same canonical value are considered equivalent. + /// + /// The [isValidKey] function is called before calling [canonicalize] for + /// methods that take arbitrary objects. It can be used to filter out keys + /// that can't be canonicalized. CanonicalizedMap.from(Map other, C canonicalize(K key), {bool isValidKey(Object key)}) : _canonicalize = canonicalize, diff --git a/pkgs/collection/lib/src/comparators.dart b/pkgs/collection/lib/src/comparators.dart index 05615ba1..49951009 100644 --- a/pkgs/collection/lib/src/comparators.dart +++ b/pkgs/collection/lib/src/comparators.dart @@ -2,8 +2,6 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -library dart.pkg.collection.comparators; - // Character constants. const int _zero = 0x30; const int _upperCaseA = 0x41; diff --git a/pkgs/collection/lib/src/equality.dart b/pkgs/collection/lib/src/equality.dart new file mode 100644 index 00000000..5a0d074b --- /dev/null +++ b/pkgs/collection/lib/src/equality.dart @@ -0,0 +1,384 @@ +// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import "dart:collection"; + +const int _HASH_MASK = 0x7fffffff; + +/// A generic equality relation on objects. +abstract class Equality { + const factory Equality() = DefaultEquality; + + /// Compare two elements for being equal. + /// + /// This should be a proper equality relation. + bool equals(E e1, E e2); + + /// Get a hashcode of an element. + /// + /// The hashcode should be compatible with [equals], so that if + /// `equals(a, b)` then `hash(a) == hash(b)`. + int hash(E e); + + /// Test whether an object is a valid argument to [equals] and [hash]. + /// + /// Some implementations may be restricted to only work on specific types + /// of objects. + bool isValidKey(Object o); +} + +/// Equality of objects that compares only the natural equality of the objects. +/// +/// This equality uses the objects' own [Object.==] and [Object.hashCode] for +/// the equality. +class DefaultEquality implements Equality { + const DefaultEquality(); + bool equals(Object e1, Object e2) => e1 == e2; + int hash(Object e) => e.hashCode; + bool isValidKey(Object o) => true; +} + +/// Equality of objects that compares only the identity of the objects. +class IdentityEquality implements Equality { + const IdentityEquality(); + bool equals(Object e1, Object e2) => identical(e1, e2); + int hash(Object e) => identityHashCode(e); + bool isValidKey(Object o) => true; +} + +/// Equality on iterables. +/// +/// Two iterables are equal if they have the same elements in the same order. +class IterableEquality implements Equality> { + final Equality _elementEquality; + const IterableEquality([Equality elementEquality = + const DefaultEquality()]) + : _elementEquality = elementEquality; + + bool equals(Iterable elements1, Iterable elements2) { + if (identical(elements1, elements2)) return true; + if (elements1 == null || elements2 == null) return false; + Iterator it1 = elements1.iterator; + Iterator it2 = elements2.iterator; + while (true) { + bool hasNext = it1.moveNext(); + if (hasNext != it2.moveNext()) return false; + if (!hasNext) return true; + if (!_elementEquality.equals(it1.current, it2.current)) return false; + } + } + + int hash(Iterable elements) { + // Jenkins's one-at-a-time hash function. + int hash = 0; + for (E element in elements) { + int c = _elementEquality.hash(element); + hash = (hash + c) & _HASH_MASK; + hash = (hash + (hash << 10)) & _HASH_MASK; + hash ^= (hash >> 6); + } + hash = (hash + (hash << 3)) & _HASH_MASK; + hash ^= (hash >> 11); + hash = (hash + (hash << 15)) & _HASH_MASK; + return hash; + } + + bool isValidKey(Object o) => o is Iterable; +} + +/// Equality on lists. +/// +/// Two lists are equal if they have the same length and their elements +/// at each index are equal. +/// +/// This is effectively the same as [IterableEquality] except that it +/// accesses elements by index instead of through iteration. +class ListEquality implements Equality> { + final Equality _elementEquality; + const ListEquality([Equality elementEquality = const DefaultEquality()]) + : _elementEquality = elementEquality; + + bool equals(List e1, List e2) { + if (identical(e1, e2)) return true; + if (e1 == null || e2 == null) return false; + int length = e1.length; + if (length != e2.length) return false; + for (int i = 0; i < length; i++) { + if (!_elementEquality.equals(e1[i], e2[i])) return false; + } + return true; + } + + int hash(List e) { + // Jenkins's one-at-a-time hash function. + // This code is almost identical to the one in IterableEquality, except + // that it uses indexing instead of iterating to get the elements. + int hash = 0; + for (int i = 0; i < e.length; i++) { + int c = _elementEquality.hash(e[i]); + hash = (hash + c) & _HASH_MASK; + hash = (hash + (hash << 10)) & _HASH_MASK; + hash ^= (hash >> 6); + } + hash = (hash + (hash << 3)) & _HASH_MASK; + hash ^= (hash >> 11); + hash = (hash + (hash << 15)) & _HASH_MASK; + return hash; + } + + bool isValidKey(Object o) => o is List; +} + +abstract class _UnorderedEquality> + implements Equality { + final Equality _elementEquality; + + const _UnorderedEquality(this._elementEquality); + + bool equals(T e1, T e2) { + if (identical(e1, e2)) return true; + if (e1 == null || e2 == null) return false; + HashMap counts = new HashMap( + equals: _elementEquality.equals, + hashCode: _elementEquality.hash, + isValidKey: _elementEquality.isValidKey); + int length = 0; + for (var e in e1) { + int count = counts[e]; + if (count == null) count = 0; + counts[e] = count + 1; + length++; + } + for (var e in e2) { + int count = counts[e]; + if (count == null || count == 0) return false; + counts[e] = count - 1; + length--; + } + return length == 0; + } + + int hash(T e) { + int hash = 0; + for (E element in e) { + int c = _elementEquality.hash(element); + hash = (hash + c) & _HASH_MASK; + } + hash = (hash + (hash << 3)) & _HASH_MASK; + hash ^= (hash >> 11); + hash = (hash + (hash << 15)) & _HASH_MASK; + return hash; + } +} + +/// Equality of the elements of two iterables without considering order. +/// +/// Two iterables are considered equal if they have the same number of elements, +/// and the elements of one set can be paired with the elements +/// of the other iterable, so that each pair are equal. +class UnorderedIterableEquality extends _UnorderedEquality> { + const UnorderedIterableEquality( + [Equality elementEquality = const DefaultEquality()]) + : super(elementEquality); + + bool isValidKey(Object o) => o is Iterable; +} + +/// Equality of sets. +/// +/// Two sets are considered equal if they have the same number of elements, +/// and the elements of one set can be paired with the elements +/// of the other set, so that each pair are equal. +/// +/// This equality behaves the same as [UnorderedIterableEquality] except that +/// it expects sets instead of iterables as arguments. +class SetEquality extends _UnorderedEquality> { + const SetEquality( + [Equality elementEquality = const DefaultEquality()]) + : super(elementEquality); + + bool isValidKey(Object o) => o is Set; +} + +/// Internal class used by [MapEquality]. +/// +/// The class represents a map entry as a single object, +/// using a combined hashCode and equality of the key and value. +class _MapEntry { + final MapEquality equality; + final key; + final value; + _MapEntry(this.equality, this.key, this.value); + + int get hashCode => + (3 * equality._keyEquality.hash(key) + + 7 * equality._valueEquality.hash(value)) & _HASH_MASK; + + bool operator==(Object other) { + if (other is! _MapEntry) return false; + _MapEntry otherEntry = other; + return equality._keyEquality.equals(key, otherEntry.key) && + equality._valueEquality.equals(value, otherEntry.value); + + } +} + +/// Equality on maps. +/// +/// Two maps are equal if they have the same number of entries, and if the +/// entries of the two maps are pairwise equal on both key and value. +class MapEquality implements Equality> { + final Equality _keyEquality; + final Equality _valueEquality; + const MapEquality({ Equality keys : const DefaultEquality(), + Equality values : const DefaultEquality() }) + : _keyEquality = keys, _valueEquality = values; + + bool equals(Map e1, Map e2) { + if (identical(e1, e2)) return true; + if (e1 == null || e2 == null) return false; + int length = e1.length; + if (length != e2.length) return false; + Map<_MapEntry, int> equalElementCounts = new HashMap(); + for (K key in e1.keys) { + _MapEntry entry = new _MapEntry(this, key, e1[key]); + int count = equalElementCounts[entry]; + if (count == null) count = 0; + equalElementCounts[entry] = count + 1; + } + for (K key in e2.keys) { + _MapEntry entry = new _MapEntry(this, key, e2[key]); + int count = equalElementCounts[entry]; + if (count == null || count == 0) return false; + equalElementCounts[entry] = count - 1; + } + return true; + } + + int hash(Map map) { + int hash = 0; + for (K key in map.keys) { + int keyHash = _keyEquality.hash(key); + int valueHash = _valueEquality.hash(map[key]); + hash = (hash + 3 * keyHash + 7 * valueHash) & _HASH_MASK; + } + hash = (hash + (hash << 3)) & _HASH_MASK; + hash ^= (hash >> 11); + hash = (hash + (hash << 15)) & _HASH_MASK; + return hash; + } + + bool isValidKey(Object o) => o is Map; +} + +/// Combines several equalities into a single equality. +/// +/// Tries each equality in order, using [Equality.isValidKey], and returns +/// the result of the first equality that applies to the argument or arguments. +/// +/// For `equals`, the first equality that matches the first argument is used, +/// and if the second argument of `equals` is not valid for that equality, +/// it returns false. +/// +/// Because the equalities are tried in order, they should generally work on +/// disjoint types. Otherwise the multi-equality may give inconsistent results +/// for `equals(e1, e2)` and `equals(e2, e1)`. This can happen if one equality +/// considers only `e1` a valid key, and not `e2`, but an equality which is +/// checked later, allows both. +class MultiEquality implements Equality { + final Iterable> _equalities; + + const MultiEquality(Iterable> equalities) + : _equalities = equalities; + + bool equals(E e1, E e2) { + for (Equality eq in _equalities) { + if (eq.isValidKey(e1)) return eq.isValidKey(e2) && eq.equals(e1, e2); + } + return false; + } + + int hash(E e) { + for (Equality eq in _equalities) { + if (eq.isValidKey(e)) return eq.hash(e); + } + return -1; + } + + bool isValidKey(Object o) { + for (Equality eq in _equalities) { + if (eq.isValidKey(o)) return true; + } + return false; + } +} + +/// Deep equality on collections. +/// +/// Recognizes lists, sets, iterables and maps and compares their elements using +/// deep equality as well. +/// +/// Non-iterable/map objects are compared using a configurable base equality. +/// +/// Works in one of two modes: ordered or unordered. +/// +/// In ordered mode, lists and iterables are required to have equal elements +/// in the same order. In unordered mode, the order of elements in iterables +/// and lists are not important. +/// +/// A list is only equal to another list, likewise for sets and maps. All other +/// iterables are compared as iterables only. +class DeepCollectionEquality implements Equality { + final Equality _base; + final bool _unordered; + const DeepCollectionEquality([Equality base = const DefaultEquality()]) + : _base = base, _unordered = false; + + /// Creates a deep equality on collections where the order of lists and + /// iterables are not considered important. That is, lists and iterables are + /// treated as unordered iterables. + const DeepCollectionEquality.unordered( + [Equality base = const DefaultEquality()]) + : _base = base, _unordered = true; + + bool equals(e1, e2) { + if (e1 is Set) { + if (e2 is! Set) return false; + return new SetEquality(this).equals(e1, e2); + } + if (e1 is Map) { + if (e2 is! Map) return false; + return new MapEquality(keys: this, values: this).equals(e1, e2); + } + if (!_unordered) { + if (e1 is List) { + if (e2 is! List) return false; + return new ListEquality(this).equals(e1, e2); + } + if (e1 is Iterable) { + if (e2 is! Iterable) return false; + return new IterableEquality(this).equals(e1, e2); + } + } else if (e1 is Iterable) { + if (e2 is! Iterable) return false; + if (e1 is List != e2 is List) return false; + return new UnorderedIterableEquality(this).equals(e1, e2); + } + return _base.equals(e1, e2); + } + + int hash(Object o) { + if (o is Set) return new SetEquality(this).hash(o); + if (o is Map) return new MapEquality(keys: this, values: this).hash(o); + if (!_unordered) { + if (o is List) return new ListEquality(this).hash(o); + if (o is Iterable) return new IterableEquality(this).hash(o); + } else if (o is Iterable) { + return new UnorderedIterableEquality(this).hash(o); + } + return _base.hash(o); + } + + bool isValidKey(Object o) => o is Iterable || o is Map || _base.isValidKey(o); +} diff --git a/pkgs/collection/lib/src/iterable_zip.dart b/pkgs/collection/lib/src/iterable_zip.dart new file mode 100644 index 00000000..30acb0e7 --- /dev/null +++ b/pkgs/collection/lib/src/iterable_zip.dart @@ -0,0 +1,50 @@ +// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import "dart:collection"; + +/// Iterable that iterates over lists of values from other iterables. +/// +/// When [iterator] is read, an [Iterator] is created for each [Iterable] in +/// the [Iterable] passed to the constructor. +/// +/// As long as all these iterators have a next value, those next values are +/// combined into a single list, which becomes the next value of this +/// [Iterable]'s [Iterator]. As soon as any of the iterators run out, +/// the zipped iterator also stops. +class IterableZip extends IterableBase { + final Iterable _iterables; + IterableZip(Iterable iterables) + : this._iterables = iterables; + + /// Returns an iterator that combines values of the iterables' iterators + /// as long as they all have values. + Iterator get iterator { + List iterators = _iterables.map((x) => x.iterator).toList(growable: false); + // TODO(lrn): Return an empty iterator directly if iterators is empty? + return new _IteratorZip(iterators); + } +} + +class _IteratorZip implements Iterator { + final List _iterators; + List _current; + _IteratorZip(List iterators) : _iterators = iterators; + bool moveNext() { + if (_iterators.isEmpty) return false; + for (int i = 0; i < _iterators.length; i++) { + if (!_iterators[i].moveNext()) { + _current = null; + return false; + } + } + _current = new List(_iterators.length); + for (int i = 0; i < _iterators.length; i++) { + _current[i] = _iterators[i].current; + } + return true; + } + + List get current => _current; +} diff --git a/pkgs/collection/lib/src/priority_queue.dart b/pkgs/collection/lib/src/priority_queue.dart new file mode 100644 index 00000000..64fd84f0 --- /dev/null +++ b/pkgs/collection/lib/src/priority_queue.dart @@ -0,0 +1,354 @@ +// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import "dart:collection"; + +/// A priority queue is a priority based work-list of elements. +/// +/// The queue allows adding elements, and removing them again in priority order. +abstract class PriorityQueue { + /// Creates an empty [PriorityQueue]. + /// + /// The created [PriorityQueue] is a plain [HeapPriorityQueue]. + /// + /// The [comparison] is a [Comparator] used to compare the priority of + /// elements. An element that compares as less than another element has + /// a higher priority. + /// + /// If [comparison] is omitted, it defaults to [Comparable.compare]. + factory PriorityQueue([int comparison(E e1, E e2)]) = HeapPriorityQueue; + + /// Number of elements in the queue. + int get length; + + /// Whether the queue is empty. + bool get isEmpty; + + /// Whether the queue has any elements. + bool get isNotEmpty; + + /// Checks if [object] is in the queue. + /// + /// Returns true if the element is found. + bool contains(E object); + + /// Adds element to the queue. + /// + /// The element will become the next to be removed by [removeFirst] + /// when all elements with higher priority have been removed. + void add(E element); + + /// Adds all [elements] to the queue. + void addAll(Iterable elements); + + /// Returns the next element that will be returned by [removeFirst]. + /// + /// The element is not removed from the queue. + /// + /// The queue must not be empty when this method is called. + E get first; + + /// Removes and returns the element with the highest priority. + /// + /// Repeatedly calling this method, without adding element in between, + /// is guaranteed to return elements in non-decreasing order as, specified by + /// [comparison]. + /// + /// The queue must not be empty when this method is called. + E removeFirst(); + + /// Removes an element that compares equal to [element] in the queue. + /// + /// Returns true if an element is found and removed, + /// and false if no equal element is found. + bool remove(E element); + + /// Removes all the elements from this queue and returns them. + /// + /// The returned iterable has no specified order. + Iterable removeAll(); + + /// Removes all the elements from this queue. + void clear(); + + /// Returns a list of the elements of this queue in priority order. + /// + /// The queue is not modified. + /// + /// The order is the order that the elements would be in if they were + /// removed from this queue using [removeFirst]. + List toList(); + + /// Return a comparator based set using the comparator of this queue. + /// + /// The queue is not modified. + /// + /// The returned [Set] is currently a [SplayTreeSet], + /// but this may change as other ordered sets are implemented. + /// + /// The set contains all the elements of this queue. + /// If an element occurs more than once in the queue, + /// the set will contain it only once. + Set toSet(); +} + +/// Heap based priority queue. +/// +/// The elements are kept in a heap structure, +/// where the element with the highest priority is immediately accessible, +/// and modifying a single element takes +/// logarithmic time in the number of elements on average. +/// +/// * The [add] and [removeFirst] operations take amortized logarithmic time, +/// O(log(n)), but may occasionally take linear time when growing the capacity +/// of the heap. +/// * The [addAll] operation works as doing repeated [add] operations. +/// * The [first] getter takes constant time, O(1). +/// * The [clear] and [removeAll] methods also take constant time, O(1). +/// * The [contains] and [remove] operations may need to search the entire +/// queue for the elements, taking O(n) time. +/// * The [toList] operation effectively sorts the elements, taking O(n*log(n)) +/// time. +/// * The [toSet] operation effectively adds each element to the new set, taking +/// an expected O(n*log(n)) time. +class HeapPriorityQueue implements PriorityQueue { + /// Initial capacity of a queue when created, or when added to after a + /// [clear]. + /// + /// Number can be any positive value. Picking a size that gives a whole + /// number of "tree levels" in the heap is only done for aesthetic reasons. + static const int _INITIAL_CAPACITY = 7; + + /// The comparison being used to compare the priority of elements. + final Comparator comparison; + + /// List implementation of a heap. + List _queue = new List(_INITIAL_CAPACITY); + + /// Number of elements in queue. + /// + /// The heap is implemented in the first [_length] entries of [_queue]. + int _length = 0; + + /// Create a new priority queue. + /// + /// The [comparison] is a [Comparator] used to compare the priority of + /// elements. An element that compares as less than another element has + /// a higher priority. + /// + /// If [comparison] is omitted, it defaults to [Comparable.compare]. + HeapPriorityQueue([int comparison(E e1, E e2)]) + : comparison = (comparison != null) ? comparison : Comparable.compare; + + void add(E element) { + _add(element); + } + + void addAll(Iterable elements) { + for (E element in elements) { + _add(element); + } + } + + void clear() { + _queue = const []; + _length = 0; + } + + bool contains(E object) { + return _locate(object) >= 0; + } + + E get first { + if (_length == 0) throw new StateError("No such element"); + return _queue[0]; + } + + bool get isEmpty => _length == 0; + + bool get isNotEmpty => _length != 0; + + int get length => _length; + + bool remove(E element) { + int index = _locate(element); + if (index < 0) return false; + E last = _removeLast(); + if (index < _length) { + int comp = comparison(last, element); + if (comp <= 0) { + _bubbleUp(last, index); + } else { + _bubbleDown(last, index); + } + } + return true; + } + + Iterable removeAll() { + List result = _queue; + int length = _length; + _queue = const []; + _length = 0; + return result.take(length); + } + + E removeFirst() { + if (_length == 0) throw new StateError("No such element"); + E result = _queue[0]; + E last = _removeLast(); + if (_length > 0) { + _bubbleDown(last, 0); + } + return result; + } + + List toList() { + List list = new List()..length = _length; + list.setRange(0, _length, _queue); + list.sort(comparison); + return list; + } + + Set toSet() { + Set set = new SplayTreeSet(comparison); + for (int i = 0; i < _length; i++) { + set.add(_queue[i]); + } + return set; + } + + /// Returns some representation of the queue. + /// + /// The format isn't significant, and may change in the future. + String toString() { + return _queue.take(_length).toString(); + } + + /// Add element to the queue. + /// + /// Grows the capacity if the backing list is full. + void _add(E element) { + if (_length == _queue.length) _grow(); + _bubbleUp(element, _length++); + } + + /// Find the index of an object in the heap. + /// + /// Returns -1 if the object is not found. + int _locate(E object) { + if (_length == 0) return -1; + // Count positions from one instead of zero. This gives the numbers + // some nice properties. For example, all right children are odd, + // their left sibling is even, and the parent is found by shifting + // right by one. + // Valid range for position is [1.._length], inclusive. + int position = 1; + // Pre-order depth first search, omit child nodes if the current + // node has lower priority than [object], because all nodes lower + // in the heap will also have lower priority. + do { + int index = position - 1; + E element = _queue[index]; + int comp = comparison(element, object); + if (comp == 0) return index; + if (comp < 0) { + // Element may be in subtree. + // Continue with the left child, if it is there. + int leftChildPosition = position * 2; + if (leftChildPosition <= _length) { + position = leftChildPosition; + continue; + } + } + // Find the next right sibling or right ancestor sibling. + do { + while (position.isOdd) { + // While position is a right child, go to the parent. + position >>= 1; + } + // Then go to the right sibling of the left-child. + position += 1; + } while (position > _length); // Happens if last element is a left child. + } while (position != 1); // At root again. Happens for right-most element. + return -1; + } + + E _removeLast() { + int newLength = _length - 1; + E last = _queue[newLength]; + _queue[newLength] = null; + _length = newLength; + return last; + } + + /// Place [element] in heap at [index] or above. + /// + /// Put element into the empty cell at `index`. + /// While the `element` has higher priority than the + /// parent, swap it with the parent. + void _bubbleUp(E element, int index) { + while (index > 0) { + int parentIndex = (index - 1) ~/ 2; + E parent = _queue[parentIndex]; + if (comparison(element, parent) > 0) break; + _queue[index] = parent; + index = parentIndex; + } + _queue[index] = element; + } + + /// Place [element] in heap at [index] or above. + /// + /// Put element into the empty cell at `index`. + /// While the `element` has lower priority than either child, + /// swap it with the highest priority child. + void _bubbleDown(E element, int index) { + int rightChildIndex = index * 2 + 2; + while (rightChildIndex < _length) { + int leftChildIndex = rightChildIndex - 1; + E leftChild = _queue[leftChildIndex]; + E rightChild = _queue[rightChildIndex]; + int comp = comparison(leftChild, rightChild); + int minChildIndex; + E minChild; + if (comp < 0) { + minChild = leftChild; + minChildIndex = leftChildIndex; + } else { + minChild = rightChild; + minChildIndex = rightChildIndex; + } + comp = comparison(element, minChild); + if (comp <= 0) { + _queue[index] = element; + return; + } + _queue[index] = minChild; + index = minChildIndex; + rightChildIndex = index * 2 + 2; + } + int leftChildIndex = rightChildIndex - 1; + if (leftChildIndex < _length) { + E child = _queue[leftChildIndex]; + int comp = comparison(element, child); + if (comp > 0) { + _queue[index] = child; + index = leftChildIndex; + } + } + _queue[index] = element; + } + + /// Grows the capacity of the list holding the heap. + /// + /// Called when the list is full. + void _grow() { + int newCapacity = _queue.length * 2 + 1; + if (newCapacity < _INITIAL_CAPACITY) newCapacity = _INITIAL_CAPACITY; + List newQueue = new List(newCapacity); + newQueue.setRange(0, _length, _queue); + _queue = newQueue; + } +} diff --git a/pkgs/collection/lib/src/queue_list.dart b/pkgs/collection/lib/src/queue_list.dart index 0ef888f9..a12f0b40 100644 --- a/pkgs/collection/lib/src/queue_list.dart +++ b/pkgs/collection/lib/src/queue_list.dart @@ -4,9 +4,7 @@ import 'dart:collection'; -/** - * A class that efficiently implements both [Queue] and [List]. - */ +/// A class that efficiently implements both [Queue] and [List]. // TODO(nweiz): Currently this code is copied almost verbatim from // dart:collection. The only changes are to implement List and to remove methods // that are redundant with ListMixin. Remove or simplify it when issue 21330 is @@ -17,12 +15,10 @@ class QueueList extends Object with ListMixin implements Queue { int _head; int _tail; - /** - * Create an empty queue. - * - * If [initialCapacity] is given, prepare the queue for at least that many - * elements. - */ + /// Create an empty queue. + /// + /// If [initialCapacity] is given, prepare the queue for at least that many + /// elements. QueueList([int initialCapacity]) : _head = 0, _tail = 0 { if (initialCapacity == null || initialCapacity < _INITIAL_CAPACITY) { initialCapacity = _INITIAL_CAPACITY; @@ -33,9 +29,7 @@ class QueueList extends Object with ListMixin implements Queue { _table = new List(initialCapacity); } - /** - * Create a queue initially containing the elements of [source]. - */ + /// Create a queue initially containing the elements of [source]. factory QueueList.from(Iterable source) { if (source is List) { int length = source.length; @@ -157,20 +151,16 @@ class QueueList extends Object with ListMixin implements Queue { // Internal helper functions. - /** - * Whether [number] is a power of two. - * - * Only works for positive numbers. - */ + /// Whether [number] is a power of two. + /// + /// Only works for positive numbers. static bool _isPowerOf2(int number) => (number & (number - 1)) == 0; - /** - * Rounds [number] up to the nearest power of 2. - * - * If [number] is a power of 2 already, it is returned. - * - * Only works for positive numbers. - */ + /// Rounds [number] up to the nearest power of 2. + /// + /// If [number] is a power of 2 already, it is returned. + /// + /// Only works for positive numbers. static int _nextPowerOf2(int number) { assert(number > 0); number = (number << 1) - 1; @@ -181,16 +171,14 @@ class QueueList extends Object with ListMixin implements Queue { } } - /** Adds element at end of queue. Used by both [add] and [addAll]. */ + /// Adds element at end of queue. Used by both [add] and [addAll]. void _add(E element) { _table[_tail] = element; _tail = (_tail + 1) & (_table.length - 1); if (_head == _tail) _grow(); } - /** - * Grow the table when full. - */ + /// Grow the table when full. void _grow() { List newTable = new List(_table.length * 2); int split = _table.length - _head; @@ -215,7 +203,7 @@ class QueueList extends Object with ListMixin implements Queue { } } - /** Grows the table even if it is not full. */ + /// Grows the table even if it is not full. void _preGrow(int newElementCount) { assert(newElementCount >= length); diff --git a/pkgs/collection/lib/src/unmodifiable_wrappers.dart b/pkgs/collection/lib/src/unmodifiable_wrappers.dart index efe3c9d0..1f784709 100644 --- a/pkgs/collection/lib/src/unmodifiable_wrappers.dart +++ b/pkgs/collection/lib/src/unmodifiable_wrappers.dart @@ -2,236 +2,163 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -/** - * Wrappers that prevent a List, Set, or Map object from being modified. - * - * The [Set] and [Map] wrappers allow reading from the wrapped collection, - * but prohibit writing. - * - * The [List] wrapper prevents changes to the length of the wrapped list, - * but allows changes to the contents. - */ -library collection.unmodifiable_wrappers; - -import '../wrappers.dart'; - export "dart:collection" show UnmodifiableListView, UnmodifiableMapView; -/** - * A fixed-length list. - * - * A `NonGrowableListView` contains a [List] object and ensures that - * its length does not change. - * Methods that would change the length of the list, - * such as [add] and [remove], throw an [UnsupportedError]. - * All other methods work directly on the underlying list. - * - * This class _does_ allow changes to the contents of the wrapped list. - * You can, for example, [sort] the list. - * Permitted operations defer to the wrapped list. - */ +import 'wrappers.dart'; + +/// A fixed-length list. +/// +/// A `NonGrowableListView` contains a [List] object and ensures that +/// its length does not change. +/// Methods that would change the length of the list, +/// such as [add] and [remove], throw an [UnsupportedError]. +/// All other methods work directly on the underlying list. +/// +/// This class _does_ allow changes to the contents of the wrapped list. +/// You can, for example, [sort] the list. +/// Permitted operations defer to the wrapped list. class NonGrowableListView extends DelegatingList with NonGrowableListMixin { NonGrowableListView(List listBase) : super(listBase); } -/** - * Mixin class that implements a throwing version of all list operations that - * change the List's length. - */ +/// Mixin class that implements a throwing version of all list operations that +/// change the List's length. abstract class NonGrowableListMixin implements List { static _throw() { throw new UnsupportedError( "Cannot change the length of a fixed-length list"); } - /** - * Throws an [UnsupportedError]; - * operations that change the length of the list are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the length of the list are disallowed. void set length(int newLength) => _throw(); - /** - * Throws an [UnsupportedError]; - * operations that change the length of the list are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the length of the list are disallowed. bool add(E value) => _throw(); - /** - * Throws an [UnsupportedError]; - * operations that change the length of the list are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the length of the list are disallowed. void addAll(Iterable iterable) => _throw(); - /** - * Throws an [UnsupportedError]; - * operations that change the length of the list are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the length of the list are disallowed. void insert(int index, E element) => _throw(); - /** - * Throws an [UnsupportedError]; - * operations that change the length of the list are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the length of the list are disallowed. void insertAll(int index, Iterable iterable) => _throw(); - /** - * Throws an [UnsupportedError]; - * operations that change the length of the list are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the length of the list are disallowed. bool remove(Object value) => _throw(); - /** - * Throws an [UnsupportedError]; - * operations that change the length of the list are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the length of the list are disallowed. E removeAt(int index) => _throw(); - /** - * Throws an [UnsupportedError]; - * operations that change the length of the list are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the length of the list are disallowed. E removeLast() => _throw(); - /** - * Throws an [UnsupportedError]; - * operations that change the length of the list are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the length of the list are disallowed. void removeWhere(bool test(E element)) => _throw(); - /** - * Throws an [UnsupportedError]; - * operations that change the length of the list are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the length of the list are disallowed. void retainWhere(bool test(E element)) => _throw(); - /** - * Throws an [UnsupportedError]; - * operations that change the length of the list are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the length of the list are disallowed. void removeRange(int start, int end) => _throw(); - /** - * Throws an [UnsupportedError]; - * operations that change the length of the list are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the length of the list are disallowed. void replaceRange(int start, int end, Iterable iterable) => _throw(); - /** - * Throws an [UnsupportedError]; - * operations that change the length of the list are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the length of the list are disallowed. void clear() => _throw(); } -/** - * An unmodifiable set. - * - * An UnmodifiableSetView contains a [Set] object and ensures - * that it does not change. - * Methods that would change the set, - * such as [add] and [remove], throw an [UnsupportedError]. - * Permitted operations defer to the wrapped set. - */ +/// An unmodifiable set. +/// +/// An UnmodifiableSetView contains a [Set] object and ensures +/// that it does not change. +/// Methods that would change the set, +/// such as [add] and [remove], throw an [UnsupportedError]. +/// Permitted operations defer to the wrapped set. class UnmodifiableSetView extends DelegatingSet with UnmodifiableSetMixin { UnmodifiableSetView(Set setBase) : super(setBase); } -/** - * Mixin class that implements a throwing version of all set operations that - * change the Set. - */ +/// Mixin class that implements a throwing version of all set operations that +/// change the Set. abstract class UnmodifiableSetMixin implements Set { _throw() { throw new UnsupportedError("Cannot modify an unmodifiable Set"); } - /** - * Throws an [UnsupportedError]; - * operations that change the set are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the set are disallowed. bool add(E value) => _throw(); - /** - * Throws an [UnsupportedError]; - * operations that change the set are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the set are disallowed. void addAll(Iterable elements) => _throw(); - /** - * Throws an [UnsupportedError]; - * operations that change the set are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the set are disallowed. bool remove(Object value) => _throw(); - /** - * Throws an [UnsupportedError]; - * operations that change the set are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the set are disallowed. void removeAll(Iterable elements) => _throw(); - /** - * Throws an [UnsupportedError]; - * operations that change the set are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the set are disallowed. void retainAll(Iterable elements) => _throw(); - /** - * Throws an [UnsupportedError]; - * operations that change the set are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the set are disallowed. void removeWhere(bool test(E element)) => _throw(); - /** - * Throws an [UnsupportedError]; - * operations that change the set are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the set are disallowed. void retainWhere(bool test(E element)) => _throw(); - /** - * Throws an [UnsupportedError]; - * operations that change the set are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the set are disallowed. void clear() => _throw(); } -/** - * Mixin class that implements a throwing version of all map operations that - * change the Map. - */ +/// Mixin class that implements a throwing version of all map operations that +/// change the Map. abstract class UnmodifiableMapMixin implements Map { static _throw() { throw new UnsupportedError("Cannot modify an unmodifiable Map"); } - /** - * Throws an [UnsupportedError]; - * operations that change the map are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the map are disallowed. void operator []=(K key, V value) => _throw(); - /** - * Throws an [UnsupportedError]; - * operations that change the map are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the map are disallowed. V putIfAbsent(K key, V ifAbsent()) => _throw(); - /** - * Throws an [UnsupportedError]; - * operations that change the map are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the map are disallowed. void addAll(Map other) => _throw(); - /** - * Throws an [UnsupportedError]; - * operations that change the map are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the map are disallowed. V remove(Object key) => _throw(); - /** - * Throws an [UnsupportedError]; - * operations that change the map are disallowed. - */ + /// Throws an [UnsupportedError]; + /// operations that change the map are disallowed. void clear() => _throw(); } diff --git a/pkgs/collection/lib/src/utils.dart b/pkgs/collection/lib/src/utils.dart index c9c75377..51a80b27 100644 --- a/pkgs/collection/lib/src/utils.dart +++ b/pkgs/collection/lib/src/utils.dart @@ -2,8 +2,6 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -library dart.pkg.collection.utils; - /// A pair of values. class Pair { E first; diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart new file mode 100644 index 00000000..ee03b5f9 --- /dev/null +++ b/pkgs/collection/lib/src/wrappers.dart @@ -0,0 +1,524 @@ +// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import "dart:collection"; +import "dart:math" as math; + +import "unmodifiable_wrappers.dart"; + +/// A base class for delegating iterables. +/// +/// Subclasses can provide a [_base] that should be delegated to. Unlike +/// [DelegatingIterable], this allows the base to be created on demand. +abstract class _DelegatingIterableBase implements Iterable { + Iterable get _base; + + const _DelegatingIterableBase(); + + bool any(bool test(E element)) => _base.any(test); + + bool contains(Object element) => _base.contains(element); + + E elementAt(int index) => _base.elementAt(index); + + bool every(bool test(E element)) => _base.every(test); + + Iterable expand(Iterable f(E element)) => _base.expand(f); + + E get first => _base.first; + + E firstWhere(bool test(E element), {E orElse()}) => + _base.firstWhere(test, orElse: orElse); + + fold(initialValue, combine(previousValue, E element)) => + _base.fold(initialValue, combine); + + void forEach(void f(E element)) => _base.forEach(f); + + bool get isEmpty => _base.isEmpty; + + bool get isNotEmpty => _base.isNotEmpty; + + Iterator get iterator => _base.iterator; + + String join([String separator = ""]) => _base.join(separator); + + E get last => _base.last; + + E lastWhere(bool test(E element), {E orElse()}) => + _base.lastWhere(test, orElse: orElse); + + int get length => _base.length; + + Iterable map(f(E element)) => _base.map(f); + + E reduce(E combine(E value, E element)) => _base.reduce(combine); + + E get single => _base.single; + + E singleWhere(bool test(E element)) => _base.singleWhere(test); + + Iterable skip(int n) => _base.skip(n); + + Iterable skipWhile(bool test(E value)) => _base.skipWhile(test); + + Iterable take(int n) => _base.take(n); + + Iterable takeWhile(bool test(E value)) => _base.takeWhile(test); + + List toList({bool growable: true}) => _base.toList(growable: growable); + + Set toSet() => _base.toSet(); + + Iterable where(bool test(E element)) => _base.where(test); + + String toString() => _base.toString(); +} + +/// Creates an [Iterable] that delegates all operations to a base iterable. +/// +/// This class can be used hide non-`Iterable` methods of an iterable object, +/// or it can be extended to add extra functionality on top of an existing +/// iterable object. +class DelegatingIterable extends _DelegatingIterableBase { + final Iterable _base; + + /// Create a wrapper that forwards operations to [base]. + const DelegatingIterable(Iterable base) : _base = base; +} + + +/// Creates a [List] that delegates all operations to a base list. +/// +/// This class can be used hide non-`List` methods of a list object, +/// or it can be extended to add extra functionality on top of an existing +/// list object. +class DelegatingList extends DelegatingIterable implements List { + const DelegatingList(List base) : super(base); + + List get _listBase => _base; + + E operator [](int index) => _listBase[index]; + + void operator []=(int index, E value) { + _listBase[index] = value; + } + + void add(E value) { + _listBase.add(value); + } + + void addAll(Iterable iterable) { + _listBase.addAll(iterable); + } + + Map asMap() => _listBase.asMap(); + + void clear() { + _listBase.clear(); + } + + void fillRange(int start, int end, [E fillValue]) { + _listBase.fillRange(start, end, fillValue); + } + + Iterable getRange(int start, int end) => _listBase.getRange(start, end); + + int indexOf(E element, [int start = 0]) => _listBase.indexOf(element, start); + + void insert(int index, E element) { + _listBase.insert(index, element); + } + + void insertAll(int index, Iterable iterable) { + _listBase.insertAll(index, iterable); + } + + int lastIndexOf(E element, [int start]) => + _listBase.lastIndexOf(element, start); + + void set length(int newLength) { + _listBase.length = newLength; + } + + bool remove(Object value) => _listBase.remove(value); + + E removeAt(int index) => _listBase.removeAt(index); + + E removeLast() => _listBase.removeLast(); + + void removeRange(int start, int end) { + _listBase.removeRange(start, end); + } + + void removeWhere(bool test(E element)) { + _listBase.removeWhere(test); + } + + void replaceRange(int start, int end, Iterable iterable) { + _listBase.replaceRange(start, end, iterable); + } + + void retainWhere(bool test(E element)) { + _listBase.retainWhere(test); + } + + Iterable get reversed => _listBase.reversed; + + void setAll(int index, Iterable iterable) { + _listBase.setAll(index, iterable); + } + + void setRange(int start, int end, Iterable iterable, [int skipCount = 0]) { + _listBase.setRange(start, end, iterable, skipCount); + } + + void shuffle([math.Random random]) { + _listBase.shuffle(random); + } + + void sort([int compare(E a, E b)]) { + _listBase.sort(compare); + } + + List sublist(int start, [int end]) => _listBase.sublist(start, end); +} + + +/// Creates a [Set] that delegates all operations to a base set. +/// +/// This class can be used hide non-`Set` methods of a set object, +/// or it can be extended to add extra functionality on top of an existing +/// set object. +class DelegatingSet extends DelegatingIterable implements Set { + const DelegatingSet(Set base) : super(base); + + Set get _setBase => _base; + + bool add(E value) => _setBase.add(value); + + void addAll(Iterable elements) { + _setBase.addAll(elements); + } + + void clear() { + _setBase.clear(); + } + + bool containsAll(Iterable other) => _setBase.containsAll(other); + + Set difference(Set other) => _setBase.difference(other); + + Set intersection(Set other) => _setBase.intersection(other); + + E lookup(Object element) => _setBase.lookup(element); + + bool remove(Object value) => _setBase.remove(value); + + void removeAll(Iterable elements) { + _setBase.removeAll(elements); + } + + void removeWhere(bool test(E element)) { + _setBase.removeWhere(test); + } + + void retainAll(Iterable elements) { + _setBase.retainAll(elements); + } + + void retainWhere(bool test(E element)) { + _setBase.retainWhere(test); + } + + Set union(Set other) => _setBase.union(other); + + Set toSet() => new DelegatingSet(_setBase.toSet()); +} + +/// Creates a [Queue] that delegates all operations to a base queue. +/// +/// This class can be used hide non-`Queue` methods of a queue object, +/// or it can be extended to add extra functionality on top of an existing +/// queue object. +class DelegatingQueue extends DelegatingIterable implements Queue { + const DelegatingQueue(Queue queue) : super(queue); + + Queue get _baseQueue => _base; + + void add(E value) { + _baseQueue.add(value); + } + + void addAll(Iterable iterable) { + _baseQueue.addAll(iterable); + } + + void addFirst(E value) { + _baseQueue.addFirst(value); + } + + void addLast(E value) { + _baseQueue.addLast(value); + } + + void clear() { + _baseQueue.clear(); + } + + bool remove(Object object) => _baseQueue.remove(object); + + void removeWhere(bool test(E element)) { _baseQueue.removeWhere(test); } + + void retainWhere(bool test(E element)) { _baseQueue.retainWhere(test); } + + E removeFirst() => _baseQueue.removeFirst(); + + E removeLast() => _baseQueue.removeLast(); +} + +/// Creates a [Map] that delegates all operations to a base map. +/// +/// This class can be used hide non-`Map` methods of an object that extends +/// `Map`, or it can be extended to add extra functionality on top of an +/// existing map object. +class DelegatingMap implements Map { + final Map _base; + + const DelegatingMap(Map base) : _base = base; + + V operator [](Object key) => _base[key]; + + void operator []=(K key, V value) { + _base[key] = value; + } + + void addAll(Map other) { + _base.addAll(other); + } + + void clear() { + _base.clear(); + } + + bool containsKey(Object key) => _base.containsKey(key); + + bool containsValue(Object value) => _base.containsValue(value); + + void forEach(void f(K key, V value)) { + _base.forEach(f); + } + + bool get isEmpty => _base.isEmpty; + + bool get isNotEmpty => _base.isNotEmpty; + + Iterable get keys => _base.keys; + + int get length => _base.length; + + V putIfAbsent(K key, V ifAbsent()) => _base.putIfAbsent(key, ifAbsent); + + V remove(Object key) => _base.remove(key); + + Iterable get values => _base.values; + + String toString() => _base.toString(); +} + +/// An unmodifiable [Set] view of the keys of a [Map]. +/// +/// The set delegates all operations to the underlying map. +/// +/// A `Map` can only contain each key once, so its keys can always +/// be viewed as a `Set` without any loss, even if the [Map.keys] +/// getter only shows an [Iterable] view of the keys. +/// +/// Note that [lookup] is not supported for this set. +class MapKeySet extends _DelegatingIterableBase + with UnmodifiableSetMixin { + final Map _baseMap; + + MapKeySet(Map base) : _baseMap = base; + + Iterable get _base => _baseMap.keys; + + bool contains(Object element) => _baseMap.containsKey(element); + + bool get isEmpty => _baseMap.isEmpty; + + bool get isNotEmpty => _baseMap.isNotEmpty; + + int get length => _baseMap.length; + + String toString() => "{${_base.join(', ')}}"; + + bool containsAll(Iterable other) => other.every(contains); + + /// Returns a new set with the the elements of [this] that are not in [other]. + /// + /// That is, the returned set contains all the elements of this [Set] that are + /// not elements of [other] according to `other.contains`. + /// + /// Note that the returned set will use the default equality operation, which + /// may be different than the equality operation [this] uses. + Set difference(Set other) => + where((element) => !other.contains(element)).toSet(); + + /// Returns a new set which is the intersection between [this] and [other]. + /// + /// That is, the returned set contains all the elements of this [Set] that are + /// also elements of [other] according to `other.contains`. + /// + /// Note that the returned set will use the default equality operation, which + /// may be different than the equality operation [this] uses. + Set intersection(Set other) => where(other.contains).toSet(); + + /// Throws an [UnsupportedError] since there's no corresponding method for + /// [Map]s. + E lookup(E element) => throw new UnsupportedError( + "MapKeySet doesn't support lookup()."); + + /// Returns a new set which contains all the elements of [this] and [other]. + /// + /// That is, the returned set contains all the elements of this [Set] and all + /// the elements of [other]. + /// + /// Note that the returned set will use the default equality operation, which + /// may be different than the equality operation [this] uses. + Set union(Set other) => toSet()..addAll(other); +} + +/// Creates a modifiable [Set] view of the values of a [Map]. +/// +/// The `Set` view assumes that the keys of the `Map` can be uniquely determined +/// from the values. The `keyForValue` function passed to the constructor finds +/// the key for a single value. The `keyForValue` function should be consistent +/// with equality. If `value1 == value2` then `keyForValue(value1)` and +/// `keyForValue(value2)` should be considered equal keys by the underlying map, +/// and vice versa. +/// +/// Modifying the set will modify the underlying map based on the key returned +/// by `keyForValue`. +/// +/// If the `Map` contents are not compatible with the `keyForValue` function, +/// the set will not work consistently, and may give meaningless responses or do +/// inconsistent updates. +/// +/// This set can, for example, be used on a map from database record IDs to the +/// records. It exposes the records as a set, and allows for writing both +/// `recordSet.add(databaseRecord)` and `recordMap[id]`. +/// +/// Effectively, the map will act as a kind of index for the set. +class MapValueSet extends _DelegatingIterableBase implements Set { + final Map _baseMap; + final Function _keyForValue; + + /// Creates a new [MapValueSet] based on [base]. + /// + /// [keyForValue] returns the key in the map that should be associated with + /// the given value. The set's notion of equality is identical to the equality + /// of the return values of [keyForValue]. + MapValueSet(Map base, K keyForValue(V value)) + : _baseMap = base, + _keyForValue = keyForValue; + + Iterable get _base => _baseMap.values; + + bool contains(Object element) { + if (element != null && element is! V) return false; + return _baseMap.containsKey(_keyForValue(element)); + } + + bool get isEmpty => _baseMap.isEmpty; + + bool get isNotEmpty => _baseMap.isNotEmpty; + + int get length => _baseMap.length; + + String toString() => toSet().toString(); + + bool add(V value) { + K key = _keyForValue(value); + bool result = false; + _baseMap.putIfAbsent(key, () { + result = true; + return value; + }); + return result; + } + + void addAll(Iterable elements) => elements.forEach(add); + + void clear() => _baseMap.clear(); + + bool containsAll(Iterable other) => other.every(contains); + + /// Returns a new set with the the elements of [this] that are not in [other]. + /// + /// That is, the returned set contains all the elements of this [Set] that are + /// not elements of [other] according to `other.contains`. + /// + /// Note that the returned set will use the default equality operation, which + /// may be different than the equality operation [this] uses. + Set difference(Set other) => + where((element) => !other.contains(element)).toSet(); + + /// Returns a new set which is the intersection between [this] and [other]. + /// + /// That is, the returned set contains all the elements of this [Set] that are + /// also elements of [other] according to `other.contains`. + /// + /// Note that the returned set will use the default equality operation, which + /// may be different than the equality operation [this] uses. + Set intersection(Set other) => where(other.contains).toSet(); + + V lookup(Object element) => _baseMap[_keyForValue(element)]; + + bool remove(Object value) { + if (value != null && value is! V) return false; + var key = _keyForValue(value); + if (!_baseMap.containsKey(key)) return false; + _baseMap.remove(key); + return true; + } + + void removeAll(Iterable elements) => elements.forEach(remove); + + void removeWhere(bool test(V element)) { + var toRemove = []; + _baseMap.forEach((key, value) { + if (test(value)) toRemove.add(key); + }); + toRemove.forEach(_baseMap.remove); + } + + void retainAll(Iterable elements) { + var valuesToRetain = new Set.identity(); + for (var element in elements) { + if (element != null && element is! V) continue; + var key = _keyForValue(element); + if (!_baseMap.containsKey(key)) continue; + valuesToRetain.add(_baseMap[key]); + } + + var keysToRemove = []; + _baseMap.forEach((k, v) { + if (!valuesToRetain.contains(v)) keysToRemove.add(k); + }); + keysToRemove.forEach(_baseMap.remove); + } + + void retainWhere(bool test(V element)) => + removeWhere((element) => !test(element)); + + /// Returns a new set which contains all the elements of [this] and [other]. + /// + /// That is, the returned set contains all the elements of this [Set] and all + /// the elements of [other]. + /// + /// Note that the returned set will use the default equality operation, which + /// may be different than the equality operation [this] uses. + Set union(Set other) => toSet()..addAll(other); +} diff --git a/pkgs/collection/lib/wrappers.dart b/pkgs/collection/lib/wrappers.dart index 30c736ed..541456e8 100644 --- a/pkgs/collection/lib/wrappers.dart +++ b/pkgs/collection/lib/wrappers.dart @@ -2,569 +2,11 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -/** - * Delegating wrappers for [Iterable], [List], [Set], [Queue] and [Map]. - * - * Also adds unmodifiable views for `Set` and `Map`, and a fixed length - * view for `List`. The unmodifiable list view from `dart:collection` is - * exported as well, just for completeness. - */ +/// Import `collection.dart` instead. +@Deprecated("Will be removed in collection 2.0.0.") library dart.pkg.collection.wrappers; -import "dart:collection"; -import "dart:math" show Random; - -import "src/unmodifiable_wrappers.dart"; - export "src/canonicalized_map.dart"; export "src/unmodifiable_wrappers.dart"; +export "src/wrappers.dart"; -/** - * A base class for delegating iterables. - * - * Subclasses can provide a [_base] that should be delegated to. Unlike - * [DelegatingIterable], this allows the base to be created on demand. - */ -abstract class _DelegatingIterableBase implements Iterable { - Iterable get _base; - - const _DelegatingIterableBase(); - - bool any(bool test(E element)) => _base.any(test); - - bool contains(Object element) => _base.contains(element); - - E elementAt(int index) => _base.elementAt(index); - - bool every(bool test(E element)) => _base.every(test); - - Iterable expand(Iterable f(E element)) => _base.expand(f); - - E get first => _base.first; - - E firstWhere(bool test(E element), {E orElse()}) => - _base.firstWhere(test, orElse: orElse); - - fold(initialValue, combine(previousValue, E element)) => - _base.fold(initialValue, combine); - - void forEach(void f(E element)) => _base.forEach(f); - - bool get isEmpty => _base.isEmpty; - - bool get isNotEmpty => _base.isNotEmpty; - - Iterator get iterator => _base.iterator; - - String join([String separator = ""]) => _base.join(separator); - - E get last => _base.last; - - E lastWhere(bool test(E element), {E orElse()}) => - _base.lastWhere(test, orElse: orElse); - - int get length => _base.length; - - Iterable map(f(E element)) => _base.map(f); - - E reduce(E combine(E value, E element)) => _base.reduce(combine); - - E get single => _base.single; - - E singleWhere(bool test(E element)) => _base.singleWhere(test); - - Iterable skip(int n) => _base.skip(n); - - Iterable skipWhile(bool test(E value)) => _base.skipWhile(test); - - Iterable take(int n) => _base.take(n); - - Iterable takeWhile(bool test(E value)) => _base.takeWhile(test); - - List toList({bool growable: true}) => _base.toList(growable: growable); - - Set toSet() => _base.toSet(); - - Iterable where(bool test(E element)) => _base.where(test); - - String toString() => _base.toString(); -} - -/** - * Creates an [Iterable] that delegates all operations to a base iterable. - * - * This class can be used hide non-`Iterable` methods of an iterable object, - * or it can be extended to add extra functionality on top of an existing - * iterable object. - */ -class DelegatingIterable extends _DelegatingIterableBase { - final Iterable _base; - - /** - * Create a wrapper that forwards operations to [base]. - */ - const DelegatingIterable(Iterable base) : _base = base; -} - - -/** - * Creates a [List] that delegates all operations to a base list. - * - * This class can be used hide non-`List` methods of a list object, - * or it can be extended to add extra functionality on top of an existing - * list object. - */ -class DelegatingList extends DelegatingIterable implements List { - const DelegatingList(List base) : super(base); - - List get _listBase => _base; - - E operator [](int index) => _listBase[index]; - - void operator []=(int index, E value) { - _listBase[index] = value; - } - - void add(E value) { - _listBase.add(value); - } - - void addAll(Iterable iterable) { - _listBase.addAll(iterable); - } - - Map asMap() => _listBase.asMap(); - - void clear() { - _listBase.clear(); - } - - void fillRange(int start, int end, [E fillValue]) { - _listBase.fillRange(start, end, fillValue); - } - - Iterable getRange(int start, int end) => _listBase.getRange(start, end); - - int indexOf(E element, [int start = 0]) => _listBase.indexOf(element, start); - - void insert(int index, E element) { - _listBase.insert(index, element); - } - - void insertAll(int index, Iterable iterable) { - _listBase.insertAll(index, iterable); - } - - int lastIndexOf(E element, [int start]) => - _listBase.lastIndexOf(element, start); - - void set length(int newLength) { - _listBase.length = newLength; - } - - bool remove(Object value) => _listBase.remove(value); - - E removeAt(int index) => _listBase.removeAt(index); - - E removeLast() => _listBase.removeLast(); - - void removeRange(int start, int end) { - _listBase.removeRange(start, end); - } - - void removeWhere(bool test(E element)) { - _listBase.removeWhere(test); - } - - void replaceRange(int start, int end, Iterable iterable) { - _listBase.replaceRange(start, end, iterable); - } - - void retainWhere(bool test(E element)) { - _listBase.retainWhere(test); - } - - Iterable get reversed => _listBase.reversed; - - void setAll(int index, Iterable iterable) { - _listBase.setAll(index, iterable); - } - - void setRange(int start, int end, Iterable iterable, [int skipCount = 0]) { - _listBase.setRange(start, end, iterable, skipCount); - } - - void shuffle([Random random]) { - _listBase.shuffle(random); - } - - void sort([int compare(E a, E b)]) { - _listBase.sort(compare); - } - - List sublist(int start, [int end]) => _listBase.sublist(start, end); -} - - -/** - * Creates a [Set] that delegates all operations to a base set. - * - * This class can be used hide non-`Set` methods of a set object, - * or it can be extended to add extra functionality on top of an existing - * set object. - */ -class DelegatingSet extends DelegatingIterable implements Set { - const DelegatingSet(Set base) : super(base); - - Set get _setBase => _base; - - bool add(E value) => _setBase.add(value); - - void addAll(Iterable elements) { - _setBase.addAll(elements); - } - - void clear() { - _setBase.clear(); - } - - bool containsAll(Iterable other) => _setBase.containsAll(other); - - Set difference(Set other) => _setBase.difference(other); - - Set intersection(Set other) => _setBase.intersection(other); - - E lookup(Object element) => _setBase.lookup(element); - - bool remove(Object value) => _setBase.remove(value); - - void removeAll(Iterable elements) { - _setBase.removeAll(elements); - } - - void removeWhere(bool test(E element)) { - _setBase.removeWhere(test); - } - - void retainAll(Iterable elements) { - _setBase.retainAll(elements); - } - - void retainWhere(bool test(E element)) { - _setBase.retainWhere(test); - } - - Set union(Set other) => _setBase.union(other); - - Set toSet() => new DelegatingSet(_setBase.toSet()); -} - -/** - * Creates a [Queue] that delegates all operations to a base queue. - * - * This class can be used hide non-`Queue` methods of a queue object, - * or it can be extended to add extra functionality on top of an existing - * queue object. - */ -class DelegatingQueue extends DelegatingIterable implements Queue { - const DelegatingQueue(Queue queue) : super(queue); - - Queue get _baseQueue => _base; - - void add(E value) { - _baseQueue.add(value); - } - - void addAll(Iterable iterable) { - _baseQueue.addAll(iterable); - } - - void addFirst(E value) { - _baseQueue.addFirst(value); - } - - void addLast(E value) { - _baseQueue.addLast(value); - } - - void clear() { - _baseQueue.clear(); - } - - bool remove(Object object) => _baseQueue.remove(object); - - void removeWhere(bool test(E element)) { _baseQueue.removeWhere(test); } - - void retainWhere(bool test(E element)) { _baseQueue.retainWhere(test); } - - E removeFirst() => _baseQueue.removeFirst(); - - E removeLast() => _baseQueue.removeLast(); -} - -/** - * Creates a [Map] that delegates all operations to a base map. - * - * This class can be used hide non-`Map` methods of an object that extends - * `Map`, or it can be extended to add extra functionality on top of an existing - * map object. - */ -class DelegatingMap implements Map { - final Map _base; - - const DelegatingMap(Map base) : _base = base; - - V operator [](Object key) => _base[key]; - - void operator []=(K key, V value) { - _base[key] = value; - } - - void addAll(Map other) { - _base.addAll(other); - } - - void clear() { - _base.clear(); - } - - bool containsKey(Object key) => _base.containsKey(key); - - bool containsValue(Object value) => _base.containsValue(value); - - void forEach(void f(K key, V value)) { - _base.forEach(f); - } - - bool get isEmpty => _base.isEmpty; - - bool get isNotEmpty => _base.isNotEmpty; - - Iterable get keys => _base.keys; - - int get length => _base.length; - - V putIfAbsent(K key, V ifAbsent()) => _base.putIfAbsent(key, ifAbsent); - - V remove(Object key) => _base.remove(key); - - Iterable get values => _base.values; - - String toString() => _base.toString(); -} - -/** - * An unmodifiable [Set] view of the keys of a [Map]. - * - * The set delegates all operations to the underlying map. - * - * A `Map` can only contain each key once, so its keys can always - * be viewed as a `Set` without any loss, even if the [Map.keys] - * getter only shows an [Iterable] view of the keys. - * - * Note that [lookup] is not supported for this set. - */ -class MapKeySet extends _DelegatingIterableBase - with UnmodifiableSetMixin { - final Map _baseMap; - - MapKeySet(Map base) : _baseMap = base; - - Iterable get _base => _baseMap.keys; - - bool contains(Object element) => _baseMap.containsKey(element); - - bool get isEmpty => _baseMap.isEmpty; - - bool get isNotEmpty => _baseMap.isNotEmpty; - - int get length => _baseMap.length; - - String toString() => "{${_base.join(', ')}}"; - - bool containsAll(Iterable other) => other.every(contains); - - /** - * Returns a new set with the the elements of [this] that are not in [other]. - * - * That is, the returned set contains all the elements of this [Set] that are - * not elements of [other] according to `other.contains`. - * - * Note that the returned set will use the default equality operation, which - * may be different than the equality operation [this] uses. - */ - Set difference(Set other) => - where((element) => !other.contains(element)).toSet(); - - /** - * Returns a new set which is the intersection between [this] and [other]. - * - * That is, the returned set contains all the elements of this [Set] that are - * also elements of [other] according to `other.contains`. - * - * Note that the returned set will use the default equality operation, which - * may be different than the equality operation [this] uses. - */ - Set intersection(Set other) => where(other.contains).toSet(); - - /** - * Throws an [UnsupportedError] since there's no corresponding method for - * [Map]s. - */ - E lookup(E element) => throw new UnsupportedError( - "MapKeySet doesn't support lookup()."); - - /** - * Returns a new set which contains all the elements of [this] and [other]. - * - * That is, the returned set contains all the elements of this [Set] and all - * the elements of [other]. - * - * Note that the returned set will use the default equality operation, which - * may be different than the equality operation [this] uses. - */ - Set union(Set other) => toSet()..addAll(other); -} - -/** - * Creates a modifiable [Set] view of the values of a [Map]. - * - * The `Set` view assumes that the keys of the `Map` can be uniquely determined - * from the values. The `keyForValue` function passed to the constructor finds - * the key for a single value. The `keyForValue` function should be consistent - * with equality. If `value1 == value2` then `keyForValue(value1)` and - * `keyForValue(value2)` should be considered equal keys by the underlying map, - * and vice versa. - * - * Modifying the set will modify the underlying map based on the key returned by - * `keyForValue`. - * - * If the `Map` contents are not compatible with the `keyForValue` function, the - * set will not work consistently, and may give meaningless responses or do - * inconsistent updates. - * - * This set can, for example, be used on a map from database record IDs to the - * records. It exposes the records as a set, and allows for writing both - * `recordSet.add(databaseRecord)` and `recordMap[id]`. - * - * Effectively, the map will act as a kind of index for the set. - */ -class MapValueSet extends _DelegatingIterableBase implements Set { - final Map _baseMap; - final Function _keyForValue; - - /** - * Creates a new [MapValueSet] based on [base]. - * - * [keyForValue] returns the key in the map that should be associated with the - * given value. The set's notion of equality is identical to the equality of - * the return values of [keyForValue]. - */ - MapValueSet(Map base, K keyForValue(V value)) - : _baseMap = base, - _keyForValue = keyForValue; - - Iterable get _base => _baseMap.values; - - bool contains(Object element) { - if (element != null && element is! V) return false; - return _baseMap.containsKey(_keyForValue(element)); - } - - bool get isEmpty => _baseMap.isEmpty; - - bool get isNotEmpty => _baseMap.isNotEmpty; - - int get length => _baseMap.length; - - String toString() => toSet().toString(); - - bool add(V value) { - K key = _keyForValue(value); - bool result = false; - _baseMap.putIfAbsent(key, () { - result = true; - return value; - }); - return result; - } - - void addAll(Iterable elements) => elements.forEach(add); - - void clear() => _baseMap.clear(); - - bool containsAll(Iterable other) => other.every(contains); - - /** - * Returns a new set with the the elements of [this] that are not in [other]. - * - * That is, the returned set contains all the elements of this [Set] that are - * not elements of [other] according to `other.contains`. - * - * Note that the returned set will use the default equality operation, which - * may be different than the equality operation [this] uses. - */ - Set difference(Set other) => - where((element) => !other.contains(element)).toSet(); - - /** - * Returns a new set which is the intersection between [this] and [other]. - * - * That is, the returned set contains all the elements of this [Set] that are - * also elements of [other] according to `other.contains`. - * - * Note that the returned set will use the default equality operation, which - * may be different than the equality operation [this] uses. - */ - Set intersection(Set other) => where(other.contains).toSet(); - - V lookup(Object element) => _baseMap[_keyForValue(element)]; - - bool remove(Object value) { - if (value != null && value is! V) return false; - var key = _keyForValue(value); - if (!_baseMap.containsKey(key)) return false; - _baseMap.remove(key); - return true; - } - - void removeAll(Iterable elements) => elements.forEach(remove); - - void removeWhere(bool test(V element)) { - var toRemove = []; - _baseMap.forEach((key, value) { - if (test(value)) toRemove.add(key); - }); - toRemove.forEach(_baseMap.remove); - } - - void retainAll(Iterable elements) { - var valuesToRetain = new Set.identity(); - for (var element in elements) { - if (element != null && element is! V) continue; - var key = _keyForValue(element); - if (!_baseMap.containsKey(key)) continue; - valuesToRetain.add(_baseMap[key]); - } - - var keysToRemove = []; - _baseMap.forEach((k, v) { - if (!valuesToRetain.contains(v)) keysToRemove.add(k); - }); - keysToRemove.forEach(_baseMap.remove); - } - - void retainWhere(bool test(V element)) => - removeWhere((element) => !test(element)); - - /** - * Returns a new set which contains all the elements of [this] and [other]. - * - * That is, the returned set contains all the elements of this [Set] and all - * the elements of [other]. - * - * Note that the returned set will use the default equality operation, which - * may be different than the equality operation [this] uses. - */ - Set union(Set other) => toSet()..addAll(other); -} diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index a2ca5d67..ff2607e9 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.4.0-dev +version: 1.4.0 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection diff --git a/pkgs/collection/test/iterable_zip_test.dart b/pkgs/collection/test/iterable_zip_test.dart index cc8ac76f..06791717 100644 --- a/pkgs/collection/test/iterable_zip_test.dart +++ b/pkgs/collection/test/iterable_zip_test.dart @@ -3,9 +3,11 @@ // BSD-style license that can be found in the LICENSE file. import "dart:collection"; -import "package:collection/iterable_zip.dart"; + import "package:test/test.dart"; +import "package:collection/collection.dart"; + /// Iterable like [base] except that it throws when value equals [errorValue]. Iterable iterError(Iterable base, int errorValue) { return base.map((x) => x == errorValue ? throw "BAD" : x); diff --git a/pkgs/collection/test/priority_queue_test.dart b/pkgs/collection/test/priority_queue_test.dart index cda07489..c6966d6c 100644 --- a/pkgs/collection/test/priority_queue_test.dart +++ b/pkgs/collection/test/priority_queue_test.dart @@ -4,9 +4,10 @@ /// Tests priority queue implementations utilities. -import "package:collection/priority_queue.dart"; import "package:test/test.dart"; +import "package:collection/priority_queue.dart"; + void main() { testDefault(); testInt(() => new HeapPriorityQueue()); @@ -48,11 +49,9 @@ void testCustom(PriorityQueue create(comparator)) { } } -/** - * Test that a queue behaves correctly. - * - * The elements must be in priority order, from highest to lowest. - */ +/// Test that a queue behaves correctly. +/// +/// The elements must be in priority order, from highest to lowest. void testQueue(String name, PriorityQueue create(), List elements, notElement) { test(name, () => testQueueBody(create, elements, notElement)); } diff --git a/pkgs/collection/test/unmodifiable_collection_test.dart b/pkgs/collection/test/unmodifiable_collection_test.dart index 6c722d09..682a4060 100644 --- a/pkgs/collection/test/unmodifiable_collection_test.dart +++ b/pkgs/collection/test/unmodifiable_collection_test.dart @@ -2,9 +2,10 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import "package:collection/wrappers.dart"; import "package:test/test.dart"; +import "package:collection/collection.dart"; + // Test unmodifiable collection views. // The collections should pass through the operations that are allowed, // an throw on the ones that aren't without affecting the original. diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index e3043a2f..f0ac7fa8 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -23,10 +23,8 @@ void testInvocations(Invocation i1, Invocation i2) { expect(i1.namedArguments, equals(i2.namedArguments), reason: name); } -/** - * Utility class to record a member access and a member access on a wrapped - * object, and compare them for equality. - */ +/// Utility class to record a member access and a member access on a wrapped +/// object, and compare them for equality. abstract class Expector { getWrappedObject(action(Invocation i)); // Hack to test assignment ([]=) because it doesn't return the result From cea4fd0960a80eda9ed92ccd54bff8bf34b4df76 Mon Sep 17 00:00:00 2001 From: Sam Rawlins Date: Mon, 7 Mar 2016 14:15:28 -0800 Subject: [PATCH 038/235] Rename toString in wrapper_test --- pkgs/collection/test/wrapper_test.dart | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index f0ac7fa8..3f68aa9f 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -36,7 +36,9 @@ abstract class Expector { testInvocations(m, m2); })); - toString() => new _Equals(equals = getWrappedObject((m2) { + // dartanalyzer complains if this method is named `toString()`, since, if it + // truly overrides Object's `toString()`, it should return a String. + asString() => new _Equals(equals = getWrappedObject((m2) { testInvocations(TO_STRING_INVOCATION, m2); })); } @@ -174,7 +176,7 @@ void main() { expect.toList(growable: true).equals.toList(growable: true); expect.toList(growable: false).equals.toList(growable: false); expect.toSet().equals.toSet(); - expect.toString().equals.toString(); + expect.asString().equals.toString(); expect.where(func1).equals.where(func1); } @@ -260,7 +262,7 @@ void main() { expect.putIfAbsent(val, func0).equals.putIfAbsent(val, func0); expect.remove(val).equals.remove(val); expect.values.equals.values; - expect.toString().equals.toString(); + expect.asString().equals.toString(); } // Runs tests of Set behavior. From 21d8fa4be10f22d1d0422bc372265937826d81ca Mon Sep 17 00:00:00 2001 From: Natalie Weizenbaum Date: Fri, 25 Mar 2016 16:59:44 -0700 Subject: [PATCH 039/235] Fix strong mode warnings. See also https://codereview.chromium.org/1817463002/. R=het@google.com, ochafik@google.com Review URL: https://codereview.chromium.org//1831103004 . --- pkgs/collection/.analysis_options | 2 ++ pkgs/collection/CHANGELOG.md | 4 +++ pkgs/collection/lib/src/algorithms.dart | 9 +++-- .../collection/lib/src/canonicalized_map.dart | 14 +++++--- pkgs/collection/lib/src/equality.dart | 18 +++++----- pkgs/collection/lib/src/iterable_zip.dart | 25 +++++++------ pkgs/collection/lib/src/priority_queue.dart | 13 ++++--- pkgs/collection/lib/src/queue_list.dart | 4 +-- .../lib/src/unmodifiable_wrappers.dart | 6 ++-- pkgs/collection/lib/src/wrappers.dart | 36 +++++++++++++------ pkgs/collection/pubspec.yaml | 4 +-- pkgs/collection/test/priority_queue_test.dart | 2 +- pkgs/collection/test/wrapper_test.dart | 2 -- 13 files changed, 86 insertions(+), 53 deletions(-) create mode 100644 pkgs/collection/.analysis_options diff --git a/pkgs/collection/.analysis_options b/pkgs/collection/.analysis_options new file mode 100644 index 00000000..a10d4c5a --- /dev/null +++ b/pkgs/collection/.analysis_options @@ -0,0 +1,2 @@ +analyzer: + strong-mode: true diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 1ab3393f..14251779 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.4.1 + +* Fix all strong mode warnings. + ## 1.4.0 * Add a `new PriorityQueue()` constructor that forwards to `new diff --git a/pkgs/collection/lib/src/algorithms.dart b/pkgs/collection/lib/src/algorithms.dart index 2b66d7df..57456a03 100644 --- a/pkgs/collection/lib/src/algorithms.dart +++ b/pkgs/collection/lib/src/algorithms.dart @@ -5,7 +5,8 @@ import "dart:math" as math; /// Version of [binarySearch] optimized for comparable keys -int _comparableBinarySearch(List list, Comparable value) { +int _comparableBinarySearch/*>*/( + List*/> list, Comparable/**/ value) { int min = 0; int max = list.length; while (min < max) { @@ -31,7 +32,8 @@ int _comparableBinarySearch(List list, Comparable value) { /// the objects. /// /// Returns -1 if [value] is not in the list by default. -int binarySearch(List sortedList, value, { int compare(a, b) }) { +int binarySearch/*>*/( + List/**/ sortedList, /*=T*/ value, { int compare(/*=T*/ a, /*=T*/ b) }) { if (compare == null) { return _comparableBinarySearch(sortedList, value); } @@ -79,7 +81,8 @@ int _comparableLowerBound(List list, Comparable value) { /// /// Returns [sortedList.length] if all the items in [sortedList] compare less /// than [value]. -int lowerBound(List sortedList, value, { int compare(a, b) }) { +int lowerBound/*>*/( + List/**/ sortedList, /*=T*/ value, { int compare(/*=T*/ a, /*=T*/ b) }) { if (compare == null) { return _comparableLowerBound(sortedList, value); } diff --git a/pkgs/collection/lib/src/canonicalized_map.dart b/pkgs/collection/lib/src/canonicalized_map.dart index d967f70d..cc78105e 100644 --- a/pkgs/collection/lib/src/canonicalized_map.dart +++ b/pkgs/collection/lib/src/canonicalized_map.dart @@ -6,6 +6,10 @@ import 'dart:collection'; import 'utils.dart'; +typedef C _Canonicalize(K key); + +typedef bool _IsValidKey(Object key); + /// A map whose keys are converted to canonical values of type `C`. /// /// This is useful for using case-insensitive String keys, for example. It's @@ -16,9 +20,9 @@ import 'utils.dart'; /// By default, `null` is allowed as a key. It can be forbidden via the /// `isValidKey` parameter. class CanonicalizedMap implements Map { - final Function _canonicalize; + final _Canonicalize _canonicalize; - final Function _isValidKeyFn; + final _IsValidKey _isValidKeyFn; final _base = new Map>(); @@ -52,7 +56,7 @@ class CanonicalizedMap implements Map { V operator [](Object key) { if (!_isValidKey(key)) return null; - var pair = _base[_canonicalize(key)]; + var pair = _base[_canonicalize(key as K)]; return pair == null ? null : pair.last; } @@ -71,7 +75,7 @@ class CanonicalizedMap implements Map { bool containsKey(Object key) { if (!_isValidKey(key)) return false; - return _base.containsKey(_canonicalize(key)); + return _base.containsKey(_canonicalize(key as K)); } bool containsValue(Object value) => @@ -96,7 +100,7 @@ class CanonicalizedMap implements Map { V remove(Object key) { if (!_isValidKey(key)) return null; - var pair = _base.remove(_canonicalize(key)); + var pair = _base.remove(_canonicalize(key as K)); return pair == null ? null : pair.last; } diff --git a/pkgs/collection/lib/src/equality.dart b/pkgs/collection/lib/src/equality.dart index 5a0d074b..09f10a64 100644 --- a/pkgs/collection/lib/src/equality.dart +++ b/pkgs/collection/lib/src/equality.dart @@ -8,7 +8,7 @@ const int _HASH_MASK = 0x7fffffff; /// A generic equality relation on objects. abstract class Equality { - const factory Equality() = DefaultEquality; + const factory Equality() = DefaultEquality; /// Compare two elements for being equal. /// @@ -32,18 +32,18 @@ abstract class Equality { /// /// This equality uses the objects' own [Object.==] and [Object.hashCode] for /// the equality. -class DefaultEquality implements Equality { +class DefaultEquality implements Equality { const DefaultEquality(); - bool equals(Object e1, Object e2) => e1 == e2; - int hash(Object e) => e.hashCode; + bool equals(E e1, E e2) => e1 == e2; + int hash(E e) => e.hashCode; bool isValidKey(Object o) => true; } /// Equality of objects that compares only the identity of the objects. -class IdentityEquality implements Equality { +class IdentityEquality implements Equality { const IdentityEquality(); - bool equals(Object e1, Object e2) => identical(e1, e2); - int hash(Object e) => identityHashCode(e); + bool equals(E e1, E e2) => identical(e1, e2); + int hash(E e) => identityHashCode(e); bool isValidKey(Object o) => true; } @@ -59,8 +59,8 @@ class IterableEquality implements Equality> { bool equals(Iterable elements1, Iterable elements2) { if (identical(elements1, elements2)) return true; if (elements1 == null || elements2 == null) return false; - Iterator it1 = elements1.iterator; - Iterator it2 = elements2.iterator; + var it1 = elements1.iterator; + var it2 = elements2.iterator; while (true) { bool hasNext = it1.moveNext(); if (hasNext != it2.moveNext()) return false; diff --git a/pkgs/collection/lib/src/iterable_zip.dart b/pkgs/collection/lib/src/iterable_zip.dart index 30acb0e7..638c6867 100644 --- a/pkgs/collection/lib/src/iterable_zip.dart +++ b/pkgs/collection/lib/src/iterable_zip.dart @@ -13,24 +13,27 @@ import "dart:collection"; /// combined into a single list, which becomes the next value of this /// [Iterable]'s [Iterator]. As soon as any of the iterators run out, /// the zipped iterator also stops. -class IterableZip extends IterableBase { - final Iterable _iterables; - IterableZip(Iterable iterables) +class IterableZip extends IterableBase> { + final Iterable> _iterables; + + IterableZip(Iterable> iterables) : this._iterables = iterables; /// Returns an iterator that combines values of the iterables' iterators /// as long as they all have values. - Iterator get iterator { - List iterators = _iterables.map((x) => x.iterator).toList(growable: false); + Iterator> get iterator { + var iterators = _iterables.map((x) => x.iterator).toList(growable: false); // TODO(lrn): Return an empty iterator directly if iterators is empty? - return new _IteratorZip(iterators); + return new _IteratorZip(iterators); } } -class _IteratorZip implements Iterator { - final List _iterators; - List _current; - _IteratorZip(List iterators) : _iterators = iterators; +class _IteratorZip implements Iterator> { + final List> _iterators; + List _current; + + _IteratorZip(List> iterators) : _iterators = iterators; + bool moveNext() { if (_iterators.isEmpty) return false; for (int i = 0; i < _iterators.length; i++) { @@ -46,5 +49,5 @@ class _IteratorZip implements Iterator { return true; } - List get current => _current; + List get current => _current; } diff --git a/pkgs/collection/lib/src/priority_queue.dart b/pkgs/collection/lib/src/priority_queue.dart index 64fd84f0..de91f15c 100644 --- a/pkgs/collection/lib/src/priority_queue.dart +++ b/pkgs/collection/lib/src/priority_queue.dart @@ -16,7 +16,9 @@ abstract class PriorityQueue { /// elements. An element that compares as less than another element has /// a higher priority. /// - /// If [comparison] is omitted, it defaults to [Comparable.compare]. + /// If [comparison] is omitted, it defaults to [Comparable.compare]. If this + /// is the case, `E` must implement [Comparable], and this is checked at + /// runtime for every comparison. factory PriorityQueue([int comparison(E e1, E e2)]) = HeapPriorityQueue; /// Number of elements in the queue. @@ -121,7 +123,7 @@ class HeapPriorityQueue implements PriorityQueue { static const int _INITIAL_CAPACITY = 7; /// The comparison being used to compare the priority of elements. - final Comparator comparison; + final Comparator comparison; /// List implementation of a heap. List _queue = new List(_INITIAL_CAPACITY); @@ -137,9 +139,12 @@ class HeapPriorityQueue implements PriorityQueue { /// elements. An element that compares as less than another element has /// a higher priority. /// - /// If [comparison] is omitted, it defaults to [Comparable.compare]. + /// If [comparison] is omitted, it defaults to [Comparable.compare]. If this + /// is the case, `E` must implement [Comparable], and this is checked at + /// runtime for every comparison. HeapPriorityQueue([int comparison(E e1, E e2)]) - : comparison = (comparison != null) ? comparison : Comparable.compare; + : comparison = comparison ?? + ((e1, e2) => (e1 as Comparable).compareTo(e2)); void add(E element) { _add(element); diff --git a/pkgs/collection/lib/src/queue_list.dart b/pkgs/collection/lib/src/queue_list.dart index a12f0b40..bf75f339 100644 --- a/pkgs/collection/lib/src/queue_list.dart +++ b/pkgs/collection/lib/src/queue_list.dart @@ -35,7 +35,7 @@ class QueueList extends Object with ListMixin implements Queue { int length = source.length; QueueList queue = new QueueList(length + 1); assert(queue._table.length > length); - List sourceList = source; + var sourceList = source; queue._table.setRange(0, length, sourceList, 0); queue._tail = length; return queue; @@ -52,7 +52,7 @@ class QueueList extends Object with ListMixin implements Queue { void addAll(Iterable elements) { if (elements is List) { - List list = elements; + var list = elements; int addCount = list.length; int length = this.length; if (length + addCount >= _table.length) { diff --git a/pkgs/collection/lib/src/unmodifiable_wrappers.dart b/pkgs/collection/lib/src/unmodifiable_wrappers.dart index 1f784709..60032866 100644 --- a/pkgs/collection/lib/src/unmodifiable_wrappers.dart +++ b/pkgs/collection/lib/src/unmodifiable_wrappers.dart @@ -25,7 +25,7 @@ class NonGrowableListView extends DelegatingList /// Mixin class that implements a throwing version of all list operations that /// change the List's length. abstract class NonGrowableListMixin implements List { - static _throw() { + static /*=T*/ _throw/**/() { throw new UnsupportedError( "Cannot change the length of a fixed-length list"); } @@ -98,7 +98,7 @@ class UnmodifiableSetView extends DelegatingSet /// Mixin class that implements a throwing version of all set operations that /// change the Set. abstract class UnmodifiableSetMixin implements Set { - _throw() { + static /*=T*/ _throw/**/() { throw new UnsupportedError("Cannot modify an unmodifiable Set"); } @@ -138,7 +138,7 @@ abstract class UnmodifiableSetMixin implements Set { /// Mixin class that implements a throwing version of all map operations that /// change the Map. abstract class UnmodifiableMapMixin implements Map { - static _throw() { + static /*=T*/ _throw/**/() { throw new UnsupportedError("Cannot modify an unmodifiable Map"); } diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index ee03b5f9..fcd33151 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -7,6 +7,8 @@ import "dart:math" as math; import "unmodifiable_wrappers.dart"; +typedef K _KeyForValue(V value); + /// A base class for delegating iterables. /// /// Subclasses can provide a [_base] that should be delegated to. Unlike @@ -24,14 +26,17 @@ abstract class _DelegatingIterableBase implements Iterable { bool every(bool test(E element)) => _base.every(test); - Iterable expand(Iterable f(E element)) => _base.expand(f); + Iterable/**/ expand/**/(Iterable/**/ f(E element)) => + _base.expand(f); E get first => _base.first; E firstWhere(bool test(E element), {E orElse()}) => _base.firstWhere(test, orElse: orElse); - fold(initialValue, combine(previousValue, E element)) => + /*=T*/ fold/**/( + /*=T*/ initialValue, + /*=T*/ combine(/*=T*/ previousValue, E element)) => _base.fold(initialValue, combine); void forEach(void f(E element)) => _base.forEach(f); @@ -51,7 +56,7 @@ abstract class _DelegatingIterableBase implements Iterable { int get length => _base.length; - Iterable map(f(E element)) => _base.map(f); + Iterable/**/ map/**/(/*=T*/ f(E element)) => _base.map(f); E reduce(E combine(E value, E element)) => _base.reduce(combine); @@ -391,7 +396,7 @@ class MapKeySet extends _DelegatingIterableBase } /// Creates a modifiable [Set] view of the values of a [Map]. -/// +/// /// The `Set` view assumes that the keys of the `Map` can be uniquely determined /// from the values. The `keyForValue` function passed to the constructor finds /// the key for a single value. The `keyForValue` function should be consistent @@ -413,7 +418,7 @@ class MapKeySet extends _DelegatingIterableBase /// Effectively, the map will act as a kind of index for the set. class MapValueSet extends _DelegatingIterableBase implements Set { final Map _baseMap; - final Function _keyForValue; + final _KeyForValue _keyForValue; /// Creates a new [MapValueSet] based on [base]. /// @@ -428,7 +433,9 @@ class MapValueSet extends _DelegatingIterableBase implements Set { bool contains(Object element) { if (element != null && element is! V) return false; - return _baseMap.containsKey(_keyForValue(element)); + var key = _keyForValue(element as V); + + return _baseMap.containsKey(key); } bool get isEmpty => _baseMap.isEmpty; @@ -474,11 +481,17 @@ class MapValueSet extends _DelegatingIterableBase implements Set { /// may be different than the equality operation [this] uses. Set intersection(Set other) => where(other.contains).toSet(); - V lookup(Object element) => _baseMap[_keyForValue(element)]; + V lookup(Object element) { + if (element != null && element is! V) return null; + var key = _keyForValue(element as V); + + return _baseMap[key]; + } + + bool remove(Object element) { + if (element != null && element is! V) return false; + var key = _keyForValue(element as V); - bool remove(Object value) { - if (value != null && value is! V) return false; - var key = _keyForValue(value); if (!_baseMap.containsKey(key)) return false; _baseMap.remove(key); return true; @@ -498,7 +511,8 @@ class MapValueSet extends _DelegatingIterableBase implements Set { var valuesToRetain = new Set.identity(); for (var element in elements) { if (element != null && element is! V) continue; - var key = _keyForValue(element); + var key = _keyForValue(element as V); + if (!_baseMap.containsKey(key)) continue; valuesToRetain.add(_baseMap[key]); } diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index ff2607e9..16a59964 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,9 +1,9 @@ name: collection -version: 1.4.0 +version: 1.4.1 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection environment: - sdk: '>=1.5.0 <2.0.0' + sdk: '>=1.12.0 <2.0.0' dev_dependencies: test: '^0.12.0' diff --git a/pkgs/collection/test/priority_queue_test.dart b/pkgs/collection/test/priority_queue_test.dart index c6966d6c..1aabcc10 100644 --- a/pkgs/collection/test/priority_queue_test.dart +++ b/pkgs/collection/test/priority_queue_test.dart @@ -6,7 +6,7 @@ import "package:test/test.dart"; -import "package:collection/priority_queue.dart"; +import "package:collection/src/priority_queue.dart"; void main() { testDefault(); diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index 3f68aa9f..035783e9 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -85,7 +85,6 @@ const TO_STRING_INVOCATION = const SyntheticInvocation( // argument to DelegatingIterable/Set/List. class IterableNSM extends NSM implements Iterable, Set, List, Queue { IterableNSM(action(Invocation i)) : super(action); - noSuchMethod(Invocation i) => super.noSuchMethod(i); // Silence warnings toString() => super.noSuchMethod(TO_STRING_INVOCATION); } @@ -120,7 +119,6 @@ class QueueExpector extends Expector { // Like NSM but implements Map to allow as argument for DelegatingMap. class MapNSM extends NSM implements Map { MapNSM(action(Invocation i)) : super(action); - noSuchMethod(Invocation i) => super.noSuchMethod(i); toString() => super.noSuchMethod(TO_STRING_INVOCATION); } From afdfad62b3ca80650ffcfe6c6b730776deb56119 Mon Sep 17 00:00:00 2001 From: Natalie Weizenbaum Date: Tue, 29 Mar 2016 11:47:44 -0700 Subject: [PATCH 040/235] Fix algorithm generics. Using "T extends Comparable" in these generics doesn't work, because we want users to be able to pass in non-Comparable arguments with custom comparator functions. Now if no explicit comparator is used, we rely on runtime checks to ensure that the objects implement Comparable. R=rnystrom@google.com Review URL: https://codereview.chromium.org//1836163002 . --- pkgs/collection/CHANGELOG.md | 7 ++ pkgs/collection/lib/src/algorithms.dart | 122 +++++++------------- pkgs/collection/lib/src/priority_queue.dart | 5 +- pkgs/collection/lib/src/utils.dart | 4 + pkgs/collection/pubspec.yaml | 2 +- 5 files changed, 57 insertions(+), 83 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 14251779..9bca49ac 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,10 @@ +## 1.4.2 + +* Fix the types for `binarySearch()` and `lowerBound()` so they no longer + require all arguments to be comparable. + +* Add generic annotations to `insertionSort()` and `mergeSort()`. + ## 1.4.1 * Fix all strong mode warnings. diff --git a/pkgs/collection/lib/src/algorithms.dart b/pkgs/collection/lib/src/algorithms.dart index 57456a03..629951d4 100644 --- a/pkgs/collection/lib/src/algorithms.dart +++ b/pkgs/collection/lib/src/algorithms.dart @@ -4,39 +4,20 @@ import "dart:math" as math; -/// Version of [binarySearch] optimized for comparable keys -int _comparableBinarySearch/*>*/( - List*/> list, Comparable/**/ value) { - int min = 0; - int max = list.length; - while (min < max) { - int mid = min + ((max - min) >> 1); - var element = list[mid]; - int comp = element.compareTo(value); - if (comp == 0) return mid; - if (comp < 0) { - min = mid + 1; - } else { - max = mid; - } - } - return -1; -} +import "utils.dart"; /// Returns a position of the [value] in [sortedList], if it is there. /// /// If the list isn't sorted according to the [compare] function, the result /// is unpredictable. /// -/// If [compare] is omitted, it defaults to calling [Comparable.compareTo] on -/// the objects. +/// If [compare] is omitted, this defaults to calling [Comparable.compareTo] on +/// the objects. If any object is not [Comparable], this throws a [CastError]. /// /// Returns -1 if [value] is not in the list by default. -int binarySearch/*>*/( - List/**/ sortedList, /*=T*/ value, { int compare(/*=T*/ a, /*=T*/ b) }) { - if (compare == null) { - return _comparableBinarySearch(sortedList, value); - } +int binarySearch/**/(List/**/ sortedList, /*=T*/ value, + {int compare(/*=T*/ a, /*=T*/ b)}) { + compare ??= defaultCompare/**/(); int min = 0; int max = sortedList.length; while (min < max) { @@ -53,39 +34,20 @@ int binarySearch/*>*/( return -1; } -/// Version of [lowerBound] optimized for comparable keys -int _comparableLowerBound(List list, Comparable value) { - int min = 0; - int max = list.length; - while (min < max) { - int mid = min + ((max - min) >> 1); - var element = list[mid]; - int comp = element.compareTo(value); - if (comp < 0) { - min = mid + 1; - } else { - max = mid; - } - } - return min; -} - /// Returns the first position in [sortedList] that does not compare less than /// [value]. /// /// If the list isn't sorted according to the [compare] function, the result /// is unpredictable. /// -/// If [compare] is omitted, it defaults to calling [Comparable.compareTo] on -/// the objects. +/// If [compare] is omitted, this defaults to calling [Comparable.compareTo] on +/// the objects. If any object is not [Comparable], this throws a [CastError]. /// /// Returns [sortedList.length] if all the items in [sortedList] compare less /// than [value]. -int lowerBound/*>*/( - List/**/ sortedList, /*=T*/ value, { int compare(/*=T*/ a, /*=T*/ b) }) { - if (compare == null) { - return _comparableLowerBound(sortedList, value); - } +int lowerBound/**/(List/**/ sortedList, /*=T*/ value, + {int compare(/*=T*/ a, /*=T*/ b)}) { + compare ??= defaultCompare/**/(); int min = 0; int max = sortedList.length; while (min < max) { @@ -133,7 +95,11 @@ void _reverse(List list, int start, int end) { } } -/// Sort a list using insertion sort. +/// Sort a list between [start] (inclusive) and [end] (exclusive) using +/// insertion sort. +/// +/// If [compare] is omitted, this defaults to calling [Comparable.compareTo] on +/// the objects. If any object is not [Comparable], this throws a [CastError]. /// /// Insertion sort is a simple sorting algorithm. For `n` elements it does on /// the order of `n * log(n)` comparisons but up to `n` squared moves. The @@ -144,25 +110,14 @@ void _reverse(List list, int start, int end) { /// /// This insertion sort is stable: Equal elements end up in the same order /// as they started in. -void insertionSort(List list, - { int compare(a, b), - int start: 0, - int end: null }) { +void insertionSort/**/(List/**/ list, {int compare(/*=T*/ a, /*=T*/ b), + int start: 0, int end}) { // If the same method could have both positional and named optional // parameters, this should be (list, [start, end], {compare}). - if (end == null) end = list.length; - if (compare == null) compare = Comparable.compare; - _insertionSort(list, compare, start, end, start + 1); -} + compare ??= defaultCompare/**/(); + end ??= list.length; -/// Internal helper function that assumes arguments correct. -/// -/// Assumes that the elements up to [sortedUntil] (not inclusive) are -/// already sorted. The [sortedUntil] values should always be at least -/// `start + 1`. -void _insertionSort(List list, int compare(a, b), int start, int end, - int sortedUntil) { - for (int pos = sortedUntil; pos < end; pos++) { + for (int pos = start + 1; pos < end; pos++) { int min = start; int max = pos; var element = list[pos]; @@ -183,7 +138,11 @@ void _insertionSort(List list, int compare(a, b), int start, int end, /// Limit below which merge sort defaults to insertion sort. const int _MERGE_SORT_LIMIT = 32; -/// Sorts a list, or a range of a list, using the merge sort algorithm. +/// Sorts a list between [start] (inclusive) and [end] (exclusive) using the +/// merge sort algorithm. +/// +/// If [compare] is omitted, this defaults to calling [Comparable.compareTo] on +/// the objects. If any object is not [Comparable], this throws a [CastError]. /// /// Merge-sorting works by splitting the job into two parts, sorting each /// recursively, and then merging the two sorted parts. @@ -194,13 +153,15 @@ const int _MERGE_SORT_LIMIT = 32; /// /// This merge sort is stable: Equal elements end up in the same order /// as they started in. -void mergeSort(List list, {int start: 0, int end: null, int compare(a, b)}) { - if (end == null) end = list.length; - if (compare == null) compare = Comparable.compare; +void mergeSort/**/(List/**/ list, {int start: 0, int end, + int compare(/*=T*/ a, /*=T*/ b)}) { + end ??= list.length; + compare ??= defaultCompare/**/(); + int length = end - start; if (length < 2) return; if (length < _MERGE_SORT_LIMIT) { - _insertionSort(list, compare, start, end, start + 1); + insertionSort(list, compare: compare, start: start, end: end); return; } // Special case the first split instead of directly calling @@ -213,7 +174,7 @@ void mergeSort(List list, {int start: 0, int end: null, int compare(a, b)}) { int firstLength = middle - start; int secondLength = end - middle; // secondLength is always the same as firstLength, or one greater. - List scratchSpace = new List(secondLength); + var scratchSpace = new List(secondLength); _mergeSort(list, compare, middle, end, scratchSpace, 0); int firstTarget = end - firstLength; _mergeSort(list, compare, start, middle, list, firstTarget); @@ -227,8 +188,9 @@ void mergeSort(List list, {int start: 0, int end: null, int compare(a, b)}) { /// one containing the original values. /// /// It will work in-place as well. -void _movingInsertionSort(List list, int compare(a, b), int start, int end, - List target, int targetOffset) { +void _movingInsertionSort/**/(List/**/ list, + int compare(/*=T*/ a, /*=T*/ b), int start, int end, List/**/ target, + int targetOffset) { int length = end - start; if (length == 0) return; target[targetOffset] = list[start]; @@ -257,8 +219,8 @@ void _movingInsertionSort(List list, int compare(a, b), int start, int end, /// /// Allows target to be the same list as [list], as long as it's not /// overlapping the `start..end` range. -void _mergeSort(List list, int compare(a, b), int start, int end, - List target, int targetOffset) { +void _mergeSort/**/(List/**/ list, int compare(/*=T*/ a, /*=T*/ b), + int start, int end, List/**/ target, int targetOffset) { int length = end - start; if (length < _MERGE_SORT_LIMIT) { _movingInsertionSort(list, compare, start, end, target, targetOffset); @@ -290,10 +252,10 @@ void _mergeSort(List list, int compare(a, b), int start, int end, /// For equal object, elements from [firstList] are always preferred. /// This allows the merge to be stable if the first list contains elements /// that started out earlier than the ones in [secondList] -void _merge(int compare(a, b), - List firstList, int firstStart, int firstEnd, - List secondList, int secondStart, int secondEnd, - List target, int targetOffset) { +void _merge/**/(int compare(/*=T*/ a, /*=T*/ b), + List/**/ firstList, int firstStart, int firstEnd, + List/**/ secondList, int secondStart, int secondEnd, + List/**/ target, int targetOffset) { // No empty lists reaches here. assert(firstStart < firstEnd); assert(secondStart < secondEnd); diff --git a/pkgs/collection/lib/src/priority_queue.dart b/pkgs/collection/lib/src/priority_queue.dart index de91f15c..e0f65b4d 100644 --- a/pkgs/collection/lib/src/priority_queue.dart +++ b/pkgs/collection/lib/src/priority_queue.dart @@ -4,6 +4,8 @@ import "dart:collection"; +import "utils.dart"; + /// A priority queue is a priority based work-list of elements. /// /// The queue allows adding elements, and removing them again in priority order. @@ -143,8 +145,7 @@ class HeapPriorityQueue implements PriorityQueue { /// is the case, `E` must implement [Comparable], and this is checked at /// runtime for every comparison. HeapPriorityQueue([int comparison(E e1, E e2)]) - : comparison = comparison ?? - ((e1, e2) => (e1 as Comparable).compareTo(e2)); + : comparison = comparison ?? defaultCompare/**/(); void add(E element) { _add(element); diff --git a/pkgs/collection/lib/src/utils.dart b/pkgs/collection/lib/src/utils.dart index 51a80b27..abfb4947 100644 --- a/pkgs/collection/lib/src/utils.dart +++ b/pkgs/collection/lib/src/utils.dart @@ -9,3 +9,7 @@ class Pair { Pair(this.first, this.last); } + +/// Returns a [Comparator] that asserts that its first argument is comparable. +Comparator/**/ defaultCompare/**/() => + (value1, value2) => (value1 as Comparable).compareTo(value2); diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 16a59964..6f1d641b 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.4.1 +version: 1.4.2 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection From 7da21c46d8376b1345d09c9bfee80aca0716d9d4 Mon Sep 17 00:00:00 2001 From: Natalie Weizenbaum Date: Tue, 29 Mar 2016 13:20:29 -0700 Subject: [PATCH 041/235] Add type-asserting wrapper constructors. Closes dart-lang/collection#25 R=lrn@google.com Review URL: https://codereview.chromium.org//1840573002 . --- pkgs/collection/CHANGELOG.md | 8 +- pkgs/collection/lib/src/typed_wrappers.dart | 349 +++++++++++++++ pkgs/collection/lib/src/wrappers.dart | 102 ++++- pkgs/collection/pubspec.yaml | 2 +- .../test/typed_wrapper/iterable_test.dart | 355 +++++++++++++++ .../test/typed_wrapper/list_test.dart | 421 ++++++++++++++++++ .../test/typed_wrapper/map_test.dart | 315 +++++++++++++ .../test/typed_wrapper/queue_test.dart | 141 ++++++ .../test/typed_wrapper/set_test.dart | 176 ++++++++ pkgs/collection/test/utils.dart | 7 + 10 files changed, 1857 insertions(+), 19 deletions(-) create mode 100644 pkgs/collection/lib/src/typed_wrappers.dart create mode 100644 pkgs/collection/test/typed_wrapper/iterable_test.dart create mode 100644 pkgs/collection/test/typed_wrapper/list_test.dart create mode 100644 pkgs/collection/test/typed_wrapper/map_test.dart create mode 100644 pkgs/collection/test/typed_wrapper/queue_test.dart create mode 100644 pkgs/collection/test/typed_wrapper/set_test.dart create mode 100644 pkgs/collection/test/utils.dart diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 9bca49ac..cde274e5 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,4 +1,10 @@ -## 1.4.2 +## 1.5.0 + +* Add `DelegatingIterable.typed()`, `DelegatingList.typed()`, + `DelegatingSet.typed()`, `DelegatingMap.typed()`, and + `DelegatingQueue.typed()` static methods. These wrap untyped instances of + these classes with the correct type parameter, and assert the types of values + as they're accessed. * Fix the types for `binarySearch()` and `lowerBound()` so they no longer require all arguments to be comparable. diff --git a/pkgs/collection/lib/src/typed_wrappers.dart b/pkgs/collection/lib/src/typed_wrappers.dart new file mode 100644 index 00000000..1dcb3b79 --- /dev/null +++ b/pkgs/collection/lib/src/typed_wrappers.dart @@ -0,0 +1,349 @@ +// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import "dart:collection"; +import "dart:math" as math; + +import "wrappers.dart"; + +typedef F _UnaryFunction(E argument); + +/// The base class for delegating, type-asserting iterables. +/// +/// Subclasses can provide a [_base] that should be delegated to. Unlike +/// [TypeSafeIterable], this allows the base to be created on demand. +abstract class _TypeSafeIterableBase implements Iterable { + /// The base iterable to which operations are delegated. + Iterable get _base; + + _TypeSafeIterableBase(); + + bool any(bool test(E element)) => _base.any(_validate(test)); + + bool contains(Object element) => _base.contains(element); + + E elementAt(int index) => _base.elementAt(index) as E; + + bool every(bool test(E element)) => _base.every(_validate(test)); + + Iterable/**/ expand/**/(Iterable/**/ f(E element)) => + _base.expand(_validate(f)); + + E get first => _base.first as E; + + E firstWhere(bool test(E element), {E orElse()}) => + _base.firstWhere(_validate(test), orElse: orElse) as E; + + /*=T*/ fold/**/( + /*=T*/ initialValue, + /*=T*/ combine(/*=T*/ previousValue, E element)) => + _base.fold(initialValue, + (previousValue, element) => combine(previousValue, element as E)); + + void forEach(void f(E element)) => _base.forEach(_validate(f)); + + bool get isEmpty => _base.isEmpty; + + bool get isNotEmpty => _base.isNotEmpty; + + Iterator get iterator => _base.map((element) => element as E).iterator; + + String join([String separator = ""]) => _base.join(separator); + + E get last => _base.last as E; + + E lastWhere(bool test(E element), {E orElse()}) => + _base.lastWhere(_validate(test), orElse: orElse) as E; + + int get length => _base.length; + + Iterable/**/ map/**/(/*=T*/ f(E element)) => _base.map(_validate(f)); + + E reduce(E combine(E value, E element)) => + _base.reduce((value, element) => combine(value as E, element as E)) as E; + + E get single => _base.single as E; + + E singleWhere(bool test(E element)) => + _base.singleWhere(_validate(test)) as E; + + Iterable skip(int n) => new TypeSafeIterable(_base.skip(n)); + + Iterable skipWhile(bool test(E value)) => + new TypeSafeIterable(_base.skipWhile(_validate(test))); + + Iterable take(int n) => new TypeSafeIterable(_base.take(n)); + + Iterable takeWhile(bool test(E value)) => + new TypeSafeIterable(_base.takeWhile(_validate(test))); + + List toList({bool growable: true}) => + new TypeSafeList(_base.toList(growable: growable)); + + Set toSet() => new TypeSafeSet(_base.toSet()); + + Iterable where(bool test(E element)) => + new TypeSafeIterable(_base.where(_validate(test))); + + String toString() => _base.toString(); + + /// Returns a version of [function] that asserts that its argument is an + /// instance of `E`. + _UnaryFunction/**/ _validate/**/(/*=F*/ function(E value)) => + (value) => function(value as E); +} + +/// An [Iterable] that asserts the types of values in a base iterable. +/// +/// This is instantiated using [DelegatingIterable.typed]. +class TypeSafeIterable extends _TypeSafeIterableBase + implements DelegatingIterable { + final Iterable _base; + + TypeSafeIterable(Iterable base) : _base = base; +} + +/// A [List] that asserts the types of values in a base list. +/// +/// This is instantiated using [DelegatingList.typed]. +class TypeSafeList extends TypeSafeIterable implements DelegatingList { + TypeSafeList(List base) : super(base); + + /// A [List]-typed getter for [_base]. + List get _listBase => _base; + + E operator [](int index) => _listBase[index] as E; + + void operator []=(int index, E value) { + _listBase[index] = value; + } + + void add(E value) { + _listBase.add(value); + } + + void addAll(Iterable iterable) { + _listBase.addAll(iterable); + } + + Map asMap() => new TypeSafeMap(_listBase.asMap()); + + void clear() { + _listBase.clear(); + } + + void fillRange(int start, int end, [E fillValue]) { + _listBase.fillRange(start, end, fillValue); + } + + Iterable getRange(int start, int end) => + new TypeSafeIterable(_listBase.getRange(start, end)); + + int indexOf(E element, [int start = 0]) => _listBase.indexOf(element, start); + + void insert(int index, E element) { + _listBase.insert(index, element); + } + + void insertAll(int index, Iterable iterable) { + _listBase.insertAll(index, iterable); + } + + int lastIndexOf(E element, [int start]) => + _listBase.lastIndexOf(element, start); + + void set length(int newLength) { + _listBase.length = newLength; + } + + bool remove(Object value) => _listBase.remove(value); + + E removeAt(int index) => _listBase.removeAt(index) as E; + + E removeLast() => _listBase.removeLast() as E; + + void removeRange(int start, int end) { + _listBase.removeRange(start, end); + } + + void removeWhere(bool test(E element)) { + _listBase.removeWhere(_validate(test)); + } + + void replaceRange(int start, int end, Iterable iterable) { + _listBase.replaceRange(start, end, iterable); + } + + void retainWhere(bool test(E element)) { + _listBase.retainWhere(_validate(test)); + } + + Iterable get reversed => new TypeSafeIterable(_listBase.reversed); + + void setAll(int index, Iterable iterable) { + _listBase.setAll(index, iterable); + } + + void setRange(int start, int end, Iterable iterable, [int skipCount = 0]) { + _listBase.setRange(start, end, iterable, skipCount); + } + + void shuffle([math.Random random]) { + _listBase.shuffle(random); + } + + void sort([int compare(E a, E b)]) { + if (compare == null) { + _listBase.sort(); + } else { + _listBase.sort((a, b) => compare(a as E, b as E)); + } + } + + List sublist(int start, [int end]) => + new TypeSafeList(_listBase.sublist(start, end)); +} + +/// A [Set] that asserts the types of values in a base set. +/// +/// This is instantiated using [DelegatingSet.typed]. +class TypeSafeSet extends TypeSafeIterable implements DelegatingSet { + TypeSafeSet(Set base) : super(base); + + /// A [Set]-typed getter for [_base]. + Set get _setBase => _base; + + bool add(E value) => _setBase.add(value); + + void addAll(Iterable elements) { + _setBase.addAll(elements); + } + + void clear() { + _setBase.clear(); + } + + bool containsAll(Iterable other) => _setBase.containsAll(other); + + Set difference(Set other) => + new TypeSafeSet(_setBase.difference(other)); + + Set intersection(Set other) => + new TypeSafeSet(_setBase.intersection(other)); + + E lookup(Object element) => _setBase.lookup(element) as E; + + bool remove(Object value) => _setBase.remove(value); + + void removeAll(Iterable elements) { + _setBase.removeAll(elements); + } + + void removeWhere(bool test(E element)) { + _setBase.removeWhere(_validate(test)); + } + + void retainAll(Iterable elements) { + _setBase.retainAll(elements); + } + + void retainWhere(bool test(E element)) { + _setBase.retainWhere(_validate(test)); + } + + Set union(Set other) => new TypeSafeSet(_setBase.union(other)); +} + +/// A [Queue] that asserts the types of values in a base queue. +/// +/// This is instantiated using [DelegatingQueue.typed]. +class TypeSafeQueue extends TypeSafeIterable + implements DelegatingQueue { + TypeSafeQueue(Queue queue) : super(queue); + + /// A [Queue]-typed getter for [_base]. + Queue get _baseQueue => _base; + + void add(E value) { + _baseQueue.add(value); + } + + void addAll(Iterable iterable) { + _baseQueue.addAll(iterable); + } + + void addFirst(E value) { + _baseQueue.addFirst(value); + } + + void addLast(E value) { + _baseQueue.addLast(value); + } + + void clear() { + _baseQueue.clear(); + } + + bool remove(Object object) => _baseQueue.remove(object); + + void removeWhere(bool test(E element)) { + _baseQueue.removeWhere(_validate(test)); + } + + void retainWhere(bool test(E element)) { + _baseQueue.retainWhere(_validate(test)); + } + + E removeFirst() => _baseQueue.removeFirst() as E; + + E removeLast() => _baseQueue.removeLast() as E; +} + +/// A [Map] that asserts the types of keys and values in a base map. +/// +/// This is instantiated using [DelegatingMap.typed]. +class TypeSafeMap implements DelegatingMap { + /// The base map to which operations are delegated. + final Map _base; + + TypeSafeMap(Map base) : _base = base; + + V operator [](Object key) => _base[key] as V; + + void operator []=(K key, V value) { + _base[key] = value; + } + + void addAll(Map other) { + _base.addAll(other); + } + + void clear() { + _base.clear(); + } + + bool containsKey(Object key) => _base.containsKey(key); + + bool containsValue(Object value) => _base.containsValue(value); + + void forEach(void f(K key, V value)) { + _base.forEach((key, value) => f(key as K, value as V)); + } + + bool get isEmpty => _base.isEmpty; + + bool get isNotEmpty => _base.isNotEmpty; + + Iterable get keys => new TypeSafeIterable(_base.keys); + + int get length => _base.length; + + V putIfAbsent(K key, V ifAbsent()) => _base.putIfAbsent(key, ifAbsent) as V; + + V remove(Object key) => _base.remove(key) as V; + + Iterable get values => new TypeSafeIterable(_base.values); + + String toString() => _base.toString(); +} diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index fcd33151..c4474270 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -5,6 +5,7 @@ import "dart:collection"; import "dart:math" as math; +import "typed_wrappers.dart"; import "unmodifiable_wrappers.dart"; typedef K _KeyForValue(V value); @@ -81,27 +82,53 @@ abstract class _DelegatingIterableBase implements Iterable { String toString() => _base.toString(); } -/// Creates an [Iterable] that delegates all operations to a base iterable. +/// An [Iterable] that delegates all operations to a base iterable. /// -/// This class can be used hide non-`Iterable` methods of an iterable object, +/// This class can be used to hide non-`Iterable` methods of an iterable object, /// or it can be extended to add extra functionality on top of an existing /// iterable object. class DelegatingIterable extends _DelegatingIterableBase { final Iterable _base; - /// Create a wrapper that forwards operations to [base]. + /// Creates a wrapper that forwards operations to [base]. const DelegatingIterable(Iterable base) : _base = base; + + /// Creates a wrapper that asserts the types of values in [base]. + /// + /// This soundly converts an [Iterable] without a generic type to an + /// `Iterable` by asserting that its elements are instances of `E` whenever + /// they're accessed. If they're not, it throws a [CastError]. + /// + /// This forwards all operations to [base], so any changes in [base] will be + /// reflected in [this]. If [base] is already an `Iterable`, it's returned + /// unmodified. + static Iterable/**/ typed/**/(Iterable base) => + base is Iterable/**/ ? base : new TypedIterable/**/(base); } -/// Creates a [List] that delegates all operations to a base list. +/// A [List] that delegates all operations to a base list. /// -/// This class can be used hide non-`List` methods of a list object, -/// or it can be extended to add extra functionality on top of an existing -/// list object. +/// This class can be used to hide non-`List` methods of a list object, or it +/// can be extended to add extra functionality on top of an existing list +/// object. class DelegatingList extends DelegatingIterable implements List { const DelegatingList(List base) : super(base); + /// Creates a wrapper that asserts the types of values in [base]. + /// + /// This soundly converts a [List] without a generic type to a `List` by + /// asserting that its elements are instances of `E` whenever they're + /// accessed. If they're not, it throws a [CastError]. Note that even if an + /// operation throws a [CastError], it may still mutate the underlying + /// collection. + /// + /// This forwards all operations to [base], so any changes in [base] will be + /// reflected in [this]. If [base] is already a `List`, it's returned + /// unmodified. + static List/**/ typed/**/(List base) => + base is List/**/ ? base : new TypedList/**/(base); + List get _listBase => _base; E operator [](int index) => _listBase[index]; @@ -191,14 +218,27 @@ class DelegatingList extends DelegatingIterable implements List { } -/// Creates a [Set] that delegates all operations to a base set. +/// A [Set] that delegates all operations to a base set. /// -/// This class can be used hide non-`Set` methods of a set object, -/// or it can be extended to add extra functionality on top of an existing -/// set object. +/// This class can be used to hide non-`Set` methods of a set object, or it can +/// be extended to add extra functionality on top of an existing set object. class DelegatingSet extends DelegatingIterable implements Set { const DelegatingSet(Set base) : super(base); + /// Creates a wrapper that asserts the types of values in [base]. + /// + /// This soundly converts a [Set] without a generic type to a `Set` by + /// asserting that its elements are instances of `E` whenever they're + /// accessed. If they're not, it throws a [CastError]. Note that even if an + /// operation throws a [CastError], it may still mutate the underlying + /// collection. + /// + /// This forwards all operations to [base], so any changes in [base] will be + /// reflected in [this]. If [base] is already a `Set`, it's returned + /// unmodified. + static Set/**/ typed/**/(Set base) => + base is Set/**/ ? base : new TypedSet/**/(base); + Set get _setBase => _base; bool add(E value) => _setBase.add(value); @@ -242,14 +282,28 @@ class DelegatingSet extends DelegatingIterable implements Set { Set toSet() => new DelegatingSet(_setBase.toSet()); } -/// Creates a [Queue] that delegates all operations to a base queue. +/// A [Queue] that delegates all operations to a base queue. /// -/// This class can be used hide non-`Queue` methods of a queue object, -/// or it can be extended to add extra functionality on top of an existing -/// queue object. +/// This class can be used to hide non-`Queue` methods of a queue object, or it +/// can be extended to add extra functionality on top of an existing queue +/// object. class DelegatingQueue extends DelegatingIterable implements Queue { const DelegatingQueue(Queue queue) : super(queue); + /// Creates a wrapper that asserts the types of values in [base]. + /// + /// This soundly converts a [Queue] without a generic type to a `Queue` by + /// asserting that its elements are instances of `E` whenever they're + /// accessed. If they're not, it throws a [CastError]. Note that even if an + /// operation throws a [CastError], it may still mutate the underlying + /// collection. + /// + /// This forwards all operations to [base], so any changes in [base] will be + /// reflected in [this]. If [base] is already a `Queue`, it's returned + /// unmodified. + static Queue/**/ typed/**/(Queue base) => + base is Queue/**/ ? base : new TypedQueue/**/(base); + Queue get _baseQueue => _base; void add(E value) { @@ -283,9 +337,9 @@ class DelegatingQueue extends DelegatingIterable implements Queue { E removeLast() => _baseQueue.removeLast(); } -/// Creates a [Map] that delegates all operations to a base map. +/// A [Map] that delegates all operations to a base map. /// -/// This class can be used hide non-`Map` methods of an object that extends +/// This class can be used to hide non-`Map` methods of an object that extends /// `Map`, or it can be extended to add extra functionality on top of an /// existing map object. class DelegatingMap implements Map { @@ -293,6 +347,20 @@ class DelegatingMap implements Map { const DelegatingMap(Map base) : _base = base; + /// Creates a wrapper that asserts the types of keys and values in [base]. + /// + /// This soundly converts a [Map] without generic types to a `Map` by + /// asserting that its keys are instances of `E` and its values are instances + /// of `V` whenever they're accessed. If they're not, it throws a [CastError]. + /// Note that even if an operation throws a [CastError], it may still mutate + /// the underlying collection. + /// + /// This forwards all operations to [base], so any changes in [base] will be + /// reflected in [this]. If [base] is already a `Map`, it's returned + /// unmodified. + static Map/**/ typed/**/(Map base) => + base is Map ? base : new TypedMap(base); + V operator [](Object key) => _base[key]; void operator []=(K key, V value) { diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 6f1d641b..5023dbe5 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.4.2 +version: 1.5.0 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection diff --git a/pkgs/collection/test/typed_wrapper/iterable_test.dart b/pkgs/collection/test/typed_wrapper/iterable_test.dart new file mode 100644 index 00000000..3614ba45 --- /dev/null +++ b/pkgs/collection/test/typed_wrapper/iterable_test.dart @@ -0,0 +1,355 @@ +// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import "package:collection/collection.dart"; +import "package:test/test.dart"; + +import '../utils.dart'; + +void main() { + group("with valid types, forwards", () { + var wrapper; + var emptyWrapper; + var singleWrapper; + setUp(() { + wrapper = DelegatingIterable.typed/**/( + [1, 2, 3, 4, 5].map((i) => i)); + emptyWrapper = DelegatingIterable.typed/**/( + [].map((i) => i)); + singleWrapper = DelegatingIterable.typed/**/( + [1].map((i) => i)); + }); + + test("any()", () { + expect(wrapper.any((i) => i > 3), isTrue); + expect(wrapper.any((i) => i > 5), isFalse); + }); + + test("contains()", () { + expect(wrapper.contains(2), isTrue); + expect(wrapper.contains(6), isFalse); + expect(wrapper.contains("foo"), isFalse); + }); + + test("elementAt()", () { + expect(wrapper.elementAt(1), equals(2)); + expect(wrapper.elementAt(4), equals(5)); + expect(() => wrapper.elementAt(5), throwsRangeError); + expect(() => wrapper.elementAt(-1), throwsRangeError); + }); + + test("every()", () { + expect(wrapper.every((i) => i < 6), isTrue); + expect(wrapper.every((i) => i > 3), isFalse); + }); + + test("expand()", () { + expect(wrapper.expand((i) => [i]), equals([1, 2, 3, 4, 5])); + expect(wrapper.expand((i) => [i, i]), + equals([1, 1, 2, 2, 3, 3, 4, 4, 5, 5])); + }); + + test("first", () { + expect(wrapper.first, equals(1)); + expect(() => emptyWrapper.first, throwsStateError); + }); + + test("firstWhere()", () { + expect(wrapper.firstWhere((i) => i > 3), equals(4)); + expect(() => wrapper.firstWhere((i) => i > 5), throwsStateError); + expect(wrapper.firstWhere((i) => i > 5, orElse: () => -1), equals(-1)); + }); + + test("fold()", () { + expect(wrapper.fold("", (previous, i) => previous + i.toString()), + equals("12345")); + expect(emptyWrapper.fold(null, (previous, i) => previous + i), isNull); + }); + + test("forEach()", () { + var results = []; + wrapper.forEach(results.add); + expect(results, equals([1, 2, 3, 4, 5])); + + emptyWrapper.forEach(expectAsync((_) {}, count: 0)); + }); + + test("isEmpty", () { + expect(wrapper.isEmpty, isFalse); + expect(emptyWrapper.isEmpty, isTrue); + }); + + test("isNotEmpty", () { + expect(wrapper.isNotEmpty, isTrue); + expect(emptyWrapper.isNotEmpty, isFalse); + }); + + test("iterator", () { + var iterator = wrapper.iterator; + expect(iterator.current, isNull); + expect(iterator.moveNext(), isTrue); + expect(iterator.current, equals(1)); + expect(iterator.moveNext(), isTrue); + expect(iterator.current, equals(2)); + expect(iterator.moveNext(), isTrue); + expect(iterator.current, equals(3)); + expect(iterator.moveNext(), isTrue); + expect(iterator.current, equals(4)); + expect(iterator.moveNext(), isTrue); + expect(iterator.current, equals(5)); + expect(iterator.moveNext(), isFalse); + expect(iterator.current, isNull); + }); + + test("join()", () { + expect(wrapper.join(), "12345"); + expect(wrapper.join("-"), "1-2-3-4-5"); + }); + + test("last", () { + expect(wrapper.last, equals(5)); + expect(() => emptyWrapper.last, throwsStateError); + }); + + test("lastWhere()", () { + expect(wrapper.lastWhere((i) => i > 3), equals(5)); + expect(() => wrapper.lastWhere((i) => i > 5), throwsStateError); + expect(wrapper.lastWhere((i) => i > 5, orElse: () => -1), equals(-1)); + }); + + test("length", () { + expect(wrapper.length, equals(5)); + expect(emptyWrapper.length, equals(0)); + }); + + test("map()", () { + expect(wrapper.map((i) => i + 1), equals([2, 3, 4, 5, 6])); + expect(wrapper.map((i) => i / 2), equals([0.5, 1.0, 1.5, 2.0, 2.5])); + }); + + test("reduce()", () { + expect(wrapper.reduce((value, i) => value + i), equals(15)); + expect(() => emptyWrapper.reduce((value, i) => value + i), + throwsStateError); + }); + + test("single", () { + expect(() => wrapper.single, throwsStateError); + expect(singleWrapper.single, equals(1)); + }); + + test("singleWhere()", () { + expect(() => wrapper.singleWhere((i) => i.isOdd), throwsStateError); + expect(singleWrapper.singleWhere((i) => i.isOdd), equals(1)); + expect(() => singleWrapper.singleWhere((i) => i.isEven), + throwsStateError); + }); + + test("skip()", () { + expect(wrapper.skip(3), equals([4, 5])); + expect(wrapper.skip(10), isEmpty); + expect(() => wrapper.skip(-1), throwsRangeError); + }); + + test("skipWhile()", () { + expect(wrapper.skipWhile((i) => i < 3), equals([3, 4, 5])); + expect(wrapper.skipWhile((i) => i < 10), isEmpty); + }); + + test("take()", () { + expect(wrapper.take(3), equals([1, 2, 3])); + expect(wrapper.take(10), equals([1, 2, 3, 4, 5])); + expect(() => wrapper.take(-1), throwsRangeError); + }); + + test("takeWhile()", () { + expect(wrapper.takeWhile((i) => i < 3), equals([1, 2])); + expect(wrapper.takeWhile((i) => i < 10), equals([1, 2, 3, 4, 5])); + }); + + test("toList()", () { + expect(wrapper.toList(), equals([1, 2, 3, 4, 5])); + expect(wrapper.toList(growable: false), equals([1, 2, 3, 4, 5])); + expect(() => wrapper.toList(growable: false).add(6), + throwsUnsupportedError); + }); + + test("toSet()", () { + expect(wrapper.toSet(), unorderedEquals([1, 2, 3, 4, 5])); + expect(DelegatingIterable.typed/**/([1, 1, 2, 2]).toSet(), + unorderedEquals([1, 2])); + }); + + test("where()", () { + expect(wrapper.where((i) => i.isOdd), equals([1, 3, 5])); + expect(wrapper.where((i) => i.isEven), equals([2, 4])); + }); + + test("toString()", () { + expect(wrapper.toString(), equals("(1, 2, 3, 4, 5)")); + expect(emptyWrapper.toString(), equals("()")); + }); + }); + + group("with invalid types", () { + var wrapper; + var singleWrapper; + setUp(() { + wrapper = DelegatingIterable.typed/**/( + ["foo", "bar", "baz"].map((element) => element)); + singleWrapper = DelegatingIterable.typed/**/( + ["foo"].map((element) => element)); + }); + + group("throws a CastError for", () { + test("any()", () { + expect(() => wrapper.any(expectAsync((_) => false, count: 0)), + throwsCastError); + }); + + test("elementAt()", () { + expect(() => wrapper.elementAt(1), throwsCastError); + }); + + test("every()", () { + expect(() => wrapper.every(expectAsync((_) => false, count: 0)), + throwsCastError); + }); + + test("expand()", () { + var lazy = wrapper.expand(expectAsync((_) => [], count: 0)); + expect(() => lazy.first, throwsCastError); + }); + + test("first", () { + expect(() => wrapper.first, throwsCastError); + }); + + test("firstWhere()", () { + expect(() => wrapper.firstWhere(expectAsync((_) => false, count: 0)), + throwsCastError); + }); + + test("fold()", () { + expect(() => wrapper.fold(null, expectAsync((_, __) => null, count: 0)), + throwsCastError); + }); + + test("forEach()", () { + expect(() => wrapper.forEach(expectAsync((_) {}, count: 0)), + throwsCastError); + }); + + test("iterator", () { + var iterator = wrapper.iterator; + expect(iterator.current, isNull); + expect(() => iterator.moveNext(), throwsCastError); + }); + + test("last", () { + expect(() => wrapper.last, throwsCastError); + }); + + test("lastWhere()", () { + expect(() => wrapper.lastWhere(expectAsync((_) => false, count: 0)), + throwsCastError); + }); + + test("map()", () { + var lazy = wrapper.map(expectAsync((_) => null, count: 0)); + expect(() => lazy.first, throwsCastError); + }); + + test("reduce()", () { + expect(() => wrapper.reduce(expectAsync((_, __) => null, count: 0)), + throwsCastError); + }); + + test("single", () { + expect(() => singleWrapper.single, throwsCastError); + }); + + test("singleWhere()", () { + expect(() { + singleWrapper.singleWhere(expectAsync((_) => false, count: 0)); + }, throwsCastError); + }); + + test("skip()", () { + var lazy = wrapper.skip(1); + expect(() => lazy.first, throwsCastError); + }); + + test("skipWhile()", () { + var lazy = wrapper.skipWhile(expectAsync((_) => false, count: 0)); + expect(() => lazy.first, throwsCastError); + }); + + test("take()", () { + var lazy = wrapper.take(1); + expect(() => lazy.first, throwsCastError); + }); + + test("takeWhile()", () { + var lazy = wrapper.takeWhile(expectAsync((_) => false, count: 0)); + expect(() => lazy.first, throwsCastError); + }); + + test("toList()", () { + var list = wrapper.toList(); + expect(() => list.first, throwsCastError); + }); + + test("toSet()", () { + var asSet = wrapper.toSet(); + expect(() => asSet.first, throwsCastError); + }); + + test("where()", () { + var lazy = wrapper.where(expectAsync((_) => false, count: 0)); + expect(() => lazy.first, throwsCastError); + }); + }); + + group("doesn't throw a CastError for", () { + test("contains()", () { + expect(wrapper.contains(1), isFalse); + expect(wrapper.contains("foo"), isTrue); + }); + + test("elementAt()", () { + expect(() => wrapper.elementAt(-1), throwsRangeError); + expect(() => wrapper.elementAt(10), throwsRangeError); + }); + + test("isEmpty", () { + expect(wrapper.isEmpty, isFalse); + }); + + test("isNotEmpty", () { + expect(wrapper.isNotEmpty, isTrue); + }); + + test("join()", () { + expect(wrapper.join(), "foobarbaz"); + }); + + test("length", () { + expect(wrapper.length, equals(3)); + }); + + test("single", () { + expect(() => wrapper.single, throwsStateError); + }); + + test("skip()", () { + expect(() => wrapper.skip(-1), throwsRangeError); + }); + + test("toString()", () { + expect(wrapper.toString(), equals("(foo, bar, baz)")); + }); + }); + }, skip: "Re-enable this when test can run DDC (test#414)."); +} diff --git a/pkgs/collection/test/typed_wrapper/list_test.dart b/pkgs/collection/test/typed_wrapper/list_test.dart new file mode 100644 index 00000000..5dd81ca0 --- /dev/null +++ b/pkgs/collection/test/typed_wrapper/list_test.dart @@ -0,0 +1,421 @@ +// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import 'dart:math' as math; + +import "package:collection/collection.dart"; +import "package:test/test.dart"; + +import '../utils.dart'; + +void main() { + group("with valid types, forwards", () { + var wrapper; + var emptyWrapper; + setUp(() { + wrapper = DelegatingList.typed/**/([1, 2, 3, 4, 5]); + emptyWrapper = DelegatingList.typed/**/([]); + }); + + test("[]", () { + expect(wrapper[0], equals(1)); + expect(wrapper[1], equals(2)); + expect(() => wrapper[-1], throwsRangeError); + expect(() => wrapper[10], throwsRangeError); + }); + + test("[]=", () { + wrapper[1] = 10; + wrapper[3] = 15; + expect(wrapper, equals([1, 10, 3, 15, 5])); + expect(() => wrapper[-1] = 10, throwsRangeError); + expect(() => wrapper[10] = 10, throwsRangeError); + }); + + test("add()", () { + wrapper.add(6); + wrapper.add(7); + expect(wrapper, equals([1, 2, 3, 4, 5, 6, 7])); + }); + + test("addAll()", () { + wrapper.addAll([6, 7, 8]); + expect(wrapper, equals([1, 2, 3, 4, 5, 6, 7, 8])); + }); + + test("asMap()", () { + expect(wrapper.asMap(), equals({0: 1, 1: 2, 2: 3, 3: 4, 4: 5})); + }); + + test("clear()", () { + wrapper.clear(); + expect(wrapper, isEmpty); + }); + + test("fillRange()", () { + wrapper.fillRange(2, 4); + expect(wrapper, equals([1, 2, null, null, 5])); + + wrapper.fillRange(1, 2, 7); + expect(wrapper, equals([1, 7, null, null, 5])); + + expect(() => wrapper.fillRange(-1, 2), throwsRangeError); + expect(() => wrapper.fillRange(1, 10), throwsRangeError); + expect(() => wrapper.fillRange(4, 2), throwsRangeError); + expect(() => wrapper.fillRange(10, 12), throwsRangeError); + }); + + test("getRange()", () { + expect(wrapper.getRange(2, 4), equals([3, 4])); + expect(wrapper.getRange(1, 2), equals([2])); + + expect(() => wrapper.getRange(-1, 2), throwsRangeError); + expect(() => wrapper.getRange(1, 10), throwsRangeError); + expect(() => wrapper.getRange(4, 2), throwsRangeError); + expect(() => wrapper.getRange(10, 12), throwsRangeError); + }); + + test("indexOf()", () { + expect(wrapper.indexOf(4), equals(3)); + expect(wrapper.indexOf(10), equals(-1)); + expect(wrapper.indexOf(4, 2), equals(3)); + expect(wrapper.indexOf(4, 4), equals(-1)); + }); + + test("insert()", () { + wrapper.insert(3, 10); + expect(wrapper, equals([1, 2, 3, 10, 4, 5])); + + wrapper.insert(0, 15); + expect(wrapper, equals([15, 1, 2, 3, 10, 4, 5])); + + expect(() => wrapper.insert(-1, 0), throwsRangeError); + expect(() => wrapper.insert(10, 0), throwsRangeError); + }); + + test("insertAll()", () { + wrapper.insertAll(3, [10, 11, 12]); + expect(wrapper, equals([1, 2, 3, 10, 11, 12, 4, 5])); + + wrapper.insertAll(0, [15, 16, 17]); + expect(wrapper, equals([15, 16, 17, 1, 2, 3, 10, 11, 12, 4, 5])); + + expect(() => wrapper.insertAll(-1, []), throwsRangeError); + expect(() => wrapper.insertAll(100, []), throwsRangeError); + }); + + test("lastIndexOf()", () { + expect(wrapper.lastIndexOf(4), equals(3)); + expect(wrapper.lastIndexOf(10), equals(-1)); + expect(wrapper.lastIndexOf(4, 4), equals(3)); + expect(wrapper.lastIndexOf(4, 2), equals(-1)); + }); + + test("length=", () { + wrapper.length = 10; + expect(wrapper, equals([1, 2, 3, 4, 5, null, null, null, null, null])); + + wrapper.length = 3; + expect(wrapper, equals([1, 2, 3])); + }); + + test("remove()", () { + expect(wrapper.remove(3), isTrue); + expect(wrapper, equals([1, 2, 4, 5])); + + expect(wrapper.remove(3), isFalse); + expect(wrapper.remove("foo"), isFalse); + }); + + test("removeAt()", () { + expect(wrapper.removeAt(3), equals(4)); + expect(wrapper, equals([1, 2, 3, 5])); + + expect(() => wrapper.removeAt(-1), throwsRangeError); + expect(() => wrapper.removeAt(10), throwsRangeError); + }); + + test("removeLast()", () { + expect(wrapper.removeLast(), equals(5)); + expect(wrapper, equals([1, 2, 3, 4])); + + // See sdk#26087. We want this to pass with the current implementation and + // with the fix. + expect(() => emptyWrapper.removeLast(), + anyOf(throwsStateError, throwsRangeError)); + }); + + test("removeRange()", () { + wrapper.removeRange(2, 4); + expect(wrapper, equals([1, 2, 5])); + + expect(() => wrapper.removeRange(-1, 2), throwsRangeError); + expect(() => wrapper.removeRange(1, 10), throwsRangeError); + expect(() => wrapper.removeRange(4, 2), throwsRangeError); + expect(() => wrapper.removeRange(10, 12), throwsRangeError); + }); + + test("removeWhere()", () { + wrapper.removeWhere((i) => i.isOdd); + expect(wrapper, equals([2, 4])); + }); + + test("replaceRange()", () { + wrapper.replaceRange(2, 4, [10, 11, 12]); + expect(wrapper, equals([1, 2, 10, 11, 12, 5])); + + expect(() => wrapper.replaceRange(-1, 2, []), throwsRangeError); + expect(() => wrapper.replaceRange(1, 10, []), throwsRangeError); + expect(() => wrapper.replaceRange(4, 2, []), throwsRangeError); + expect(() => wrapper.replaceRange(10, 12, []), throwsRangeError); + }); + + test("retainWhere()", () { + wrapper.retainWhere((i) => i.isOdd); + expect(wrapper, equals([1, 3, 5])); + }); + + test("reversed", () { + expect(wrapper.reversed, equals([5, 4, 3, 2, 1])); + }); + + test("setAll()", () { + wrapper.setAll(2, [10, 11]); + expect(wrapper, equals([1, 2, 10, 11, 5])); + + expect(() => wrapper.setAll(-1, []), throwsRangeError); + expect(() => wrapper.setAll(10, []), throwsRangeError); + }); + + test("setRange()", () { + wrapper.setRange(2, 4, [10, 11, 12]); + expect(wrapper, equals([1, 2, 10, 11, 5])); + + wrapper.setRange(2, 4, [10, 11, 12], 1); + expect(wrapper, equals([1, 2, 11, 12, 5])); + + expect(() => wrapper.setRange(-1, 2, []), throwsRangeError); + expect(() => wrapper.setRange(1, 10, []), throwsRangeError); + expect(() => wrapper.setRange(4, 2, []), throwsRangeError); + expect(() => wrapper.setRange(10, 12, []), throwsRangeError); + expect(() => wrapper.setRange(2, 4, []), throwsStateError); + }); + + test("shuffle()", () { + wrapper.shuffle(new math.Random(1234)); + expect(wrapper, equals([1, 2, 3, 4, 5]..shuffle(new math.Random(1234)))); + }); + + test("sort()", () { + wrapper.sort((a, b) => b.compareTo(a)); + expect(wrapper, equals([5, 4, 3, 2, 1])); + + wrapper.sort(); + expect(wrapper, equals([1, 2, 3, 4, 5])); + }); + + test("sublist()", () { + expect(wrapper.sublist(2), equals([3, 4, 5])); + expect(wrapper.sublist(2, 4), equals([3, 4])); + }); + }); + + group("with invalid types", () { + var inner; + var wrapper; + setUp(() { + inner = ["foo", "bar", "baz"]; + wrapper = DelegatingList.typed/**/(inner); + }); + + group("throws a CastError for", () { + test("[]", () { + expect(() => wrapper[0], throwsCastError); + }); + + test("asMap()", () { + var map = wrapper.asMap(); + expect(() => map[1], throwsCastError); + }); + + test("getRange()", () { + var lazy = wrapper.getRange(1, 2); + expect(() => lazy.first, throwsCastError); + }); + + test("removeAt()", () { + expect(() => wrapper.removeAt(2), throwsCastError); + }); + + test("removeLast()", () { + expect(() => wrapper.removeLast(), throwsCastError); + }); + + test("removeWhere()", () { + expect(() => wrapper.removeWhere(expectAsync((_) => false, count: 0)), + throwsCastError); + }); + + test("retainWhere()", () { + expect(() => wrapper.retainWhere(expectAsync((_) => false, count: 0)), + throwsCastError); + }); + + test("reversed", () { + var lazy = wrapper.reversed; + expect(() => lazy.first, throwsCastError); + }); + + test("sort()", () { + expect(() => wrapper.sort(expectAsync((_, __) => 0, count: 0)), + throwsCastError); + }); + + test("sublist()", () { + var list = wrapper.sublist(1); + expect(() => list[0], throwsCastError); + }); + }); + + group("doesn't throw a CastError for", () { + test("[]", () { + expect(() => wrapper[-1], throwsRangeError); + expect(() => wrapper[10], throwsRangeError); + }); + + test("[]=", () { + wrapper[1] = 10; + expect(inner, equals(["foo", 10, "baz"])); + expect(() => wrapper[-1] = 10, throwsRangeError); + expect(() => wrapper[10] = 10, throwsRangeError); + }); + + test("add()", () { + wrapper.add(6); + wrapper.add(7); + expect(inner, equals(["foo", "bar", "baz", 6, 7])); + }); + + test("addAll()", () { + wrapper.addAll([6, 7, 8]); + expect(inner, equals(["foo", "bar", "baz", 6, 7, 8])); + }); + + test("clear()", () { + wrapper.clear(); + expect(wrapper, isEmpty); + }); + + test("fillRange()", () { + wrapper.fillRange(1, 3, 7); + expect(inner, equals(["foo", 7, 7])); + + expect(() => wrapper.fillRange(-1, 2), throwsRangeError); + expect(() => wrapper.fillRange(1, 10), throwsRangeError); + expect(() => wrapper.fillRange(4, 2), throwsRangeError); + expect(() => wrapper.fillRange(10, 12), throwsRangeError); + }); + + test("getRange()", () { + expect(() => wrapper.getRange(-1, 2), throwsRangeError); + expect(() => wrapper.getRange(1, 10), throwsRangeError); + expect(() => wrapper.getRange(4, 2), throwsRangeError); + expect(() => wrapper.getRange(10, 12), throwsRangeError); + }); + + test("indexOf()", () { + expect(wrapper.indexOf(4), equals(-1)); + }); + + test("insert()", () { + wrapper.insert(0, 15); + expect(inner, equals([15, "foo", "bar", "baz"])); + + expect(() => wrapper.insert(-1, 0), throwsRangeError); + expect(() => wrapper.insert(10, 0), throwsRangeError); + }); + + test("insertAll()", () { + wrapper.insertAll(0, [15, 16, 17]); + expect(inner, equals([15, 16, 17, "foo", "bar", "baz"])); + + expect(() => wrapper.insertAll(-1, []), throwsRangeError); + expect(() => wrapper.insertAll(100, []), throwsRangeError); + }); + + test("lastIndexOf()", () { + expect(wrapper.lastIndexOf(4), equals(-1)); + }); + + test("length=", () { + wrapper.length = 5; + expect(inner, equals(["foo", "bar", "baz", null, null])); + + wrapper.length = 1; + expect(inner, equals(["foo"])); + }); + + test("remove()", () { + expect(wrapper.remove(3), isFalse); + expect(wrapper.remove("foo"), isTrue); + expect(inner, equals(["bar", "baz"])); + }); + + test("removeAt()", () { + expect(() => wrapper.removeAt(-1), throwsRangeError); + expect(() => wrapper.removeAt(10), throwsRangeError); + }); + + test("removeRange()", () { + wrapper.removeRange(1, 3); + expect(inner, equals(["foo"])); + + expect(() => wrapper.removeRange(-1, 2), throwsRangeError); + expect(() => wrapper.removeRange(1, 10), throwsRangeError); + expect(() => wrapper.removeRange(4, 2), throwsRangeError); + expect(() => wrapper.removeRange(10, 12), throwsRangeError); + }); + + test("replaceRange()", () { + wrapper.replaceRange(1, 2, [10, 11, 12]); + expect(inner, equals(["foo", 10, 11, 12, "baz"])); + + expect(() => wrapper.replaceRange(-1, 2, []), throwsRangeError); + expect(() => wrapper.replaceRange(1, 10, []), throwsRangeError); + expect(() => wrapper.replaceRange(4, 2, []), throwsRangeError); + expect(() => wrapper.replaceRange(10, 12, []), throwsRangeError); + }); + + test("setAll()", () { + wrapper.setAll(1, [10, 11]); + expect(inner, equals(["foo", 10, 11])); + + expect(() => wrapper.setAll(-1, []), throwsRangeError); + expect(() => wrapper.setAll(10, []), throwsRangeError); + }); + + test("setRange()", () { + wrapper.setRange(1, 2, [10, 11, 12]); + expect(inner, equals(["foo", 10, "baz"])); + + expect(() => wrapper.setRange(-1, 2, []), throwsRangeError); + expect(() => wrapper.setRange(1, 10, []), throwsRangeError); + expect(() => wrapper.setRange(4, 2, []), throwsRangeError); + expect(() => wrapper.setRange(10, 12, []), throwsRangeError); + expect(() => wrapper.setRange(1, 2, []), throwsStateError); + }); + + test("shuffle()", () { + wrapper.shuffle(new math.Random(1234)); + expect(inner, + equals(["foo", "bar", "baz"]..shuffle(new math.Random(1234)))); + }); + + test("sort()", () { + wrapper.sort(); + expect(inner, equals(["bar", "baz", "foo"])); + }); + }); + }, skip: "Re-enable this when test can run DDC (test#414)."); +} diff --git a/pkgs/collection/test/typed_wrapper/map_test.dart b/pkgs/collection/test/typed_wrapper/map_test.dart new file mode 100644 index 00000000..3546ae8f --- /dev/null +++ b/pkgs/collection/test/typed_wrapper/map_test.dart @@ -0,0 +1,315 @@ +// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import "package:collection/collection.dart"; +import "package:test/test.dart"; + +import '../utils.dart'; + +void main() { + group("with valid types, forwards", () { + var wrapper; + var emptyWrapper; + setUp(() { + wrapper = DelegatingMap.typed/**/( + {"foo": 1, "bar": 2, "baz": 3, "bang": 4}); + emptyWrapper = DelegatingMap.typed/**/({}); + }); + + test("[]", () { + expect(wrapper["foo"], equals(1)); + expect(wrapper["bar"], equals(2)); + expect(wrapper["qux"], isNull); + expect(wrapper[1], isNull); + }); + + test("[]=", () { + wrapper["foo"] = 5; + expect(wrapper, equals({"foo": 5, "bar": 2, "baz": 3, "bang": 4})); + + wrapper["qux"] = 6; + expect(wrapper, + equals({"foo": 5, "bar": 2, "baz": 3, "bang": 4, "qux": 6})); + }); + + test("addAll()", () { + wrapper.addAll({"bar": 5, "qux": 6}); + expect(wrapper, + equals({"foo": 1, "bar": 5, "baz": 3, "bang": 4, "qux": 6})); + }); + + test("clear()", () { + wrapper.clear(); + expect(wrapper, isEmpty); + }); + + test("containsKey()", () { + expect(wrapper.containsKey("foo"), isTrue); + expect(wrapper.containsKey("qux"), isFalse); + expect(wrapper.containsKey(1), isFalse); + }); + + test("containsValue()", () { + expect(wrapper.containsValue(1), isTrue); + expect(wrapper.containsValue(7), isFalse); + expect(wrapper.containsValue("foo"), isFalse); + }); + + test("forEach()", () { + var results = []; + wrapper.forEach((key, value) => results.add([key, value])); + expect(results, + unorderedEquals([["foo", 1], ["bar", 2], ["baz", 3], ["bang", 4]])); + + emptyWrapper.forEach(expectAsync((_, __) {}, count: 0)); + }); + + test("isEmpty", () { + expect(wrapper.isEmpty, isFalse); + expect(emptyWrapper.isEmpty, isTrue); + }); + + test("isNotEmpty", () { + expect(wrapper.isNotEmpty, isTrue); + expect(emptyWrapper.isNotEmpty, isFalse); + }); + + test("keys", () { + expect(wrapper.keys, unorderedEquals(["foo", "bar", "baz", "bang"])); + expect(emptyWrapper.keys, isEmpty); + }); + + test("length", () { + expect(wrapper.length, equals(4)); + expect(emptyWrapper.length, equals(0)); + }); + + test("putIfAbsent()", () { + expect(wrapper.putIfAbsent("foo", expectAsync(() => null, count: 0)), + equals(1)); + + expect(wrapper.putIfAbsent("qux", () => 6), equals(6)); + expect(wrapper, + equals({"foo": 1, "bar": 2, "baz": 3, "bang": 4, "qux": 6})); + }); + + test("remove()", () { + expect(wrapper.remove("foo"), equals(1)); + expect(wrapper, equals({"bar": 2, "baz": 3, "bang": 4})); + + expect(wrapper.remove("foo"), isNull); + expect(wrapper.remove(3), isNull); + }); + + test("values", () { + expect(wrapper.values, unorderedEquals([1, 2, 3, 4])); + expect(emptyWrapper.values, isEmpty); + }); + + test("toString()", () { + expect(wrapper.toString(), allOf([ + startsWith("{"), + contains("foo: 1"), + contains("bar: 2"), + contains("baz: 3"), + contains("bang: 4"), + endsWith("}") + ])); + }); + }); + + group("with invalid key types", () { + var inner; + var wrapper; + setUp(() { + inner = {1: 1, 2: 2, 3: 3, 4: 4}; + wrapper = DelegatingMap.typed/**/(inner); + }); + + group("throws a CastError for", () { + test("forEach()", () { + expect(() => wrapper.forEach(expectAsync((_, __) {}, count: 0)), + throwsCastError); + }); + + test("keys", () { + var lazy = wrapper.keys; + expect(() => lazy.first, throwsCastError); + }); + }); + + group("doesn't throw a CastError for", () { + test("[]", () { + expect(wrapper["foo"], isNull); + expect(wrapper[1], equals(1)); + expect(wrapper[7], isNull); + }); + + test("[]=", () { + wrapper["foo"] = 5; + expect(inner, equals({"foo": 5, 1: 1, 2: 2, 3: 3, 4: 4})); + }); + + test("addAll()", () { + wrapper.addAll({"foo": 1, "bar": 2}); + expect(inner, equals({"foo": 1, "bar": 2, 1: 1, 2: 2, 3: 3, 4: 4})); + }); + + test("clear()", () { + wrapper.clear(); + expect(wrapper, isEmpty); + }); + + test("containsKey()", () { + expect(wrapper.containsKey(1), isTrue); + expect(wrapper.containsKey(7), isFalse); + expect(wrapper.containsKey("foo"), isFalse); + }); + + test("containsValue()", () { + expect(wrapper.containsValue(1), isTrue); + expect(wrapper.containsValue(7), isFalse); + expect(wrapper.containsValue("foo"), isFalse); + }); + + test("isEmpty", () { + expect(wrapper.isEmpty, isFalse); + }); + + test("isNotEmpty", () { + expect(wrapper.isNotEmpty, isTrue); + }); + + test("length", () { + expect(wrapper.length, equals(4)); + }); + + test("putIfAbsent()", () { + expect(wrapper.putIfAbsent("foo", () => 1), equals(1)); + expect(inner, equals({"foo": 1, 1: 1, 2: 2, 3: 3, 4: 4})); + }); + + test("remove()", () { + expect(wrapper.remove(1), equals(1)); + expect(inner, equals({2: 2, 3: 3, 4: 4})); + + expect(wrapper.remove("foo"), isNull); + expect(wrapper.remove(7), isNull); + }); + + test("values", () { + expect(wrapper.values, unorderedEquals([1, 2, 3, 4])); + }); + + test("toString()", () { + expect(wrapper.toString(), allOf([ + startsWith("{"), + contains("1: 1"), + contains("2: 2"), + contains("3: 3"), + contains("4: 4"), + endsWith("}") + ])); + }); + }); + }, skip: "Re-enable this when test can run DDC (test#414)."); + + group("with invalid value types", () { + var inner; + var wrapper; + setUp(() { + inner = {"foo": "bar", "baz": "bang"}; + wrapper = DelegatingMap.typed/**/(inner); + }); + + group("throws a CastError for", () { + test("forEach()", () { + expect(() => wrapper.forEach(expectAsync((_, __) {}, count: 0)), + throwsCastError); + }); + + test("[]", () { + expect(() => wrapper["foo"], throwsCastError); + expect(wrapper["qux"], isNull); + }); + + test("putIfAbsent()", () { + expect(() => wrapper.putIfAbsent("foo", () => 1), throwsCastError); + }); + + test("remove()", () { + expect(() => wrapper.remove("foo"), throwsCastError); + }); + + test("values", () { + var lazy = wrapper.values; + expect(() => lazy.first, throwsCastError); + }); + }); + + group("doesn't throw a CastError for", () { + test("[]=", () { + wrapper["foo"] = 5; + expect(inner, equals({"foo": 5, "baz": "bang"})); + }); + + test("addAll()", () { + wrapper.addAll({"foo": 1, "qux": 2}); + expect(inner, equals({"foo": 1, "baz": "bang", "qux": 2})); + }); + + test("clear()", () { + wrapper.clear(); + expect(wrapper, isEmpty); + }); + + test("containsKey()", () { + expect(wrapper.containsKey("foo"), isTrue); + expect(wrapper.containsKey(1), isFalse); + expect(wrapper.containsKey("qux"), isFalse); + }); + + test("containsValue()", () { + expect(wrapper.containsValue("bar"), isTrue); + expect(wrapper.containsValue(1), isFalse); + expect(wrapper.containsValue("foo"), isFalse); + }); + + test("isEmpty", () { + expect(wrapper.isEmpty, isFalse); + }); + + test("isNotEmpty", () { + expect(wrapper.isNotEmpty, isTrue); + }); + + test("keys", () { + expect(wrapper.keys, unorderedEquals(["foo", "baz"])); + }); + + test("length", () { + expect(wrapper.length, equals(2)); + }); + + test("putIfAbsent()", () { + expect(wrapper.putIfAbsent("qux", () => 1), equals(1)); + expect(inner, equals({"foo": "bar", "baz": "bang", "qux": 1})); + }); + + test("remove()", () { + expect(wrapper.remove("qux"), isNull); + expect(wrapper.remove(7), isNull); + }); + + test("toString()", () { + expect(wrapper.toString(), allOf([ + startsWith("{"), + contains("foo: bar"), + contains("baz: bang"), + endsWith("}") + ])); + }); + }); + }, skip: "Re-enable this when test can run DDC (test#414)."); +} diff --git a/pkgs/collection/test/typed_wrapper/queue_test.dart b/pkgs/collection/test/typed_wrapper/queue_test.dart new file mode 100644 index 00000000..dc93321b --- /dev/null +++ b/pkgs/collection/test/typed_wrapper/queue_test.dart @@ -0,0 +1,141 @@ +// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import "dart:collection"; + +import "package:collection/collection.dart"; +import "package:test/test.dart"; + +import '../utils.dart'; + +void main() { + group("with valid types, forwards", () { + var wrapper; + var emptyWrapper; + setUp(() { + wrapper = DelegatingQueue.typed/**/( + new Queue.from([1, 2, 3, 4, 5])); + emptyWrapper = DelegatingQueue.typed/**/(new Queue()); + }); + + test("add()", () { + wrapper.add(6); + wrapper.add(7); + expect(wrapper, equals([1, 2, 3, 4, 5, 6, 7])); + }); + + test("addAll()", () { + wrapper.addAll([6, 7, 8]); + expect(wrapper, equals([1, 2, 3, 4, 5, 6, 7, 8])); + }); + + test("addFirst()", () { + wrapper.addFirst(6); + wrapper.addFirst(7); + expect(wrapper, equals([7, 6, 1, 2, 3, 4, 5])); + }); + + test("addLast()", () { + wrapper.addLast(6); + wrapper.addLast(7); + expect(wrapper, equals([1, 2, 3, 4, 5, 6, 7])); + }); + + test("clear()", () { + wrapper.clear(); + expect(wrapper, isEmpty); + }); + + test("remove()", () { + expect(wrapper.remove(3), isTrue); + expect(wrapper, equals([1, 2, 4, 5])); + + expect(wrapper.remove(3), isFalse); + expect(wrapper.remove("foo"), isFalse); + }); + + test("removeWhere()", () { + wrapper.removeWhere((i) => i.isOdd); + expect(wrapper, equals([2, 4])); + }); + + test("retainWhere()", () { + wrapper.retainWhere((i) => i.isOdd); + expect(wrapper, equals([1, 3, 5])); + }); + + test("removeLast()", () { + expect(wrapper.removeLast(), equals(5)); + expect(wrapper, equals([1, 2, 3, 4])); + + expect(() => emptyWrapper.removeLast(), throwsStateError); + }); + + test("removeFirst()", () { + expect(wrapper.removeFirst(), equals(1)); + expect(wrapper, equals([2, 3, 4, 5])); + + expect(() => emptyWrapper.removeFirst(), throwsStateError); + }); + }); + + group("with invalid types", () { + var inner; + var wrapper; + setUp(() { + inner = new Queue.from(["foo", "bar", "baz"]); + wrapper = DelegatingQueue.typed/**/(inner); + }); + + group("throws a CastError for", () { + test("removeLast()", () { + expect(() => wrapper.removeLast(), throwsCastError); + }); + + test("removeFirst()", () { + expect(() => wrapper.removeFirst(), throwsCastError); + }); + + test("removeWhere()", () { + expect(() => wrapper.removeWhere(expectAsync((_) => false, count: 0)), + throwsCastError); + }); + + test("retainWhere()", () { + expect(() => wrapper.retainWhere(expectAsync((_) => false, count: 0)), + throwsCastError); + }); + }); + + group("doesn't throw a CastError for", () { + test("add()", () { + wrapper.add(6); + wrapper.add(7); + expect(inner, equals(["foo", "bar", "baz", 6, 7])); + }); + + test("addAll()", () { + wrapper.addAll([6, 7, 8]); + expect(inner, equals(["foo", "bar", "baz", 6, 7, 8])); + }); + + test("addFirst()", () { + wrapper.addFirst(6); + wrapper.addFirst(7); + expect(inner, equals([7, 6, "foo", "bar", "baz"])); + }); + + test("addLast()", () { + wrapper.addLast(6); + wrapper.addLast(7); + expect(inner, equals(["foo", "bar", "baz", 6, 7])); + }); + + test("clear()", () { + wrapper.clear(); + expect(wrapper, isEmpty); + }); + }); + }, skip: "Re-enable this when test can run DDC (test#414)."); +} diff --git a/pkgs/collection/test/typed_wrapper/set_test.dart b/pkgs/collection/test/typed_wrapper/set_test.dart new file mode 100644 index 00000000..c3f84bcb --- /dev/null +++ b/pkgs/collection/test/typed_wrapper/set_test.dart @@ -0,0 +1,176 @@ +// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import "package:collection/collection.dart"; +import "package:test/test.dart"; + +import '../utils.dart'; + +void main() { + group("with valid types, forwards", () { + var wrapper; + var emptyWrapper; + setUp(() { + wrapper = DelegatingSet.typed/**/( + new Set.from([1, 2, 3, 4, 5])); + emptyWrapper = DelegatingSet.typed/**/(new Set()); + }); + + test("add()", () { + wrapper.add(1); + wrapper.add(6); + expect(wrapper, unorderedEquals([1, 2, 3, 4, 5, 6])); + }); + + test("addAll()", () { + wrapper.addAll([1, 6, 7]); + expect(wrapper, unorderedEquals([1, 2, 3, 4, 5, 6, 7])); + }); + + test("clear()", () { + wrapper.clear(); + expect(wrapper, isEmpty); + }); + + test("containsAll()", () { + expect(wrapper.containsAll([1, 3, 5]), isTrue); + expect(wrapper.containsAll([1, 3, 6]), isFalse); + expect(wrapper.containsAll([1, 3, "foo"]), isFalse); + }); + + test("difference()", () { + expect(wrapper.difference(new Set.from([1, 3, 6])), + unorderedEquals([2, 4, 5])); + }); + + test("intersection()", () { + expect(wrapper.intersection(new Set.from([1, 3, 6, "foo"])), + unorderedEquals([1, 3])); + }); + + test("lookup()", () { + expect(wrapper.lookup(1), equals(1)); + expect(wrapper.lookup(7), isNull); + expect(wrapper.lookup("foo"), isNull); + }); + + test("remove()", () { + expect(wrapper.remove(3), isTrue); + expect(wrapper, unorderedEquals([1, 2, 4, 5])); + + expect(wrapper.remove(3), isFalse); + expect(wrapper.remove("foo"), isFalse); + }); + + test("removeAll()", () { + wrapper.removeAll([1, 3, 6, "foo"]); + expect(wrapper, unorderedEquals([2, 4, 5])); + }); + + test("removeWhere()", () { + wrapper.removeWhere((i) => i.isOdd); + expect(wrapper, unorderedEquals([2, 4])); + }); + + test("retainAll()", () { + wrapper.retainAll([1, 3, 6, "foo"]); + expect(wrapper, unorderedEquals([1, 3])); + }); + + test("retainWhere()", () { + wrapper.retainWhere((i) => i.isOdd); + expect(wrapper, unorderedEquals([1, 3, 5])); + }); + + test("union()", () { + expect(wrapper.union(new Set.from([5, 6, 7])), + unorderedEquals([1, 2, 3, 4, 5, 6, 7])); + }); + }); + + group("with invalid types", () { + var inner; + var wrapper; + setUp(() { + inner = new Set.from(["foo", "bar", "baz"]); + wrapper = DelegatingSet.typed/**/(inner); + }); + + group("throws a CastError for", () { + test("difference()", () { + var result = wrapper.difference(new Set.from([1, 3, 6])); + expect(() => result.first, throwsCastError); + }); + + test("intersection()", () { + var result = wrapper.intersection(new Set.from([1, 3, 6, "foo"])); + expect(() => result.first, throwsCastError); + }); + + test("lookup()", () { + expect(() => wrapper.lookup("foo"), throwsCastError); + }); + + test("removeWhere()", () { + expect(() => wrapper.removeWhere(expectAsync((_) => false, count: 0)), + throwsCastError); + }); + + test("retainWhere()", () { + expect(() => wrapper.retainWhere(expectAsync((_) => false, count: 0)), + throwsCastError); + }); + + test("union()", () { + var result = wrapper.union(new Set.from([5, 6, 7])); + expect(() => result.first, throwsCastError); + }); + }); + + group("doesn't throw a CastError for", () { + test("add()", () { + wrapper.add(6); + expect(inner, unorderedEquals(["foo", "bar", "baz", 6])); + }); + + test("addAll()", () { + wrapper.addAll([6, 7]); + expect(inner, unorderedEquals(["foo", "bar", "baz", 6, 7])); + }); + + test("clear()", () { + wrapper.clear(); + expect(wrapper, isEmpty); + }); + + test("containsAll()", () { + expect(wrapper.containsAll(["foo", "bar"]), isTrue); + expect(wrapper.containsAll(["foo", "bar", 1]), isFalse); + }); + + test("lookup()", () { + expect(wrapper.lookup(1), isNull); + expect(wrapper.lookup("zap"), isNull); + }); + + test("remove()", () { + expect(wrapper.remove("foo"), isTrue); + expect(inner, unorderedEquals(["bar", "baz"])); + + expect(wrapper.remove(3), isFalse); + expect(wrapper.remove("foo"), isFalse); + }); + + test("removeAll()", () { + wrapper.removeAll([1, "foo", "baz"]); + expect(inner, unorderedEquals(["bar"])); + }); + + test("retainAll()", () { + wrapper.retainAll([1, "foo", "baz"]); + expect(inner, unorderedEquals(["foo", "baz"])); + }); + }); + }, skip: "Re-enable this when test can run DDC (test#414)."); +} diff --git a/pkgs/collection/test/utils.dart b/pkgs/collection/test/utils.dart new file mode 100644 index 00000000..d8ab0829 --- /dev/null +++ b/pkgs/collection/test/utils.dart @@ -0,0 +1,7 @@ +// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import "package:test/test.dart"; + +final Matcher throwsCastError = throwsA(new isInstanceOf()); From c89791d0c3ac110b1e315f615baef22b00ae26b4 Mon Sep 17 00:00:00 2001 From: Natalie Weizenbaum Date: Tue, 29 Mar 2016 13:28:20 -0700 Subject: [PATCH 042/235] Fix the invocation of type-safe constructors. R=leafp@google.com Review URL: https://codereview.chromium.org//1838353002 . --- pkgs/collection/lib/src/wrappers.dart | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index c4474270..97de461c 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -103,7 +103,7 @@ class DelegatingIterable extends _DelegatingIterableBase { /// reflected in [this]. If [base] is already an `Iterable`, it's returned /// unmodified. static Iterable/**/ typed/**/(Iterable base) => - base is Iterable/**/ ? base : new TypedIterable/**/(base); + base is Iterable/**/ ? base : new TypeSafeIterable/**/(base); } @@ -127,7 +127,7 @@ class DelegatingList extends DelegatingIterable implements List { /// reflected in [this]. If [base] is already a `List`, it's returned /// unmodified. static List/**/ typed/**/(List base) => - base is List/**/ ? base : new TypedList/**/(base); + base is List/**/ ? base : new TypeSafeList/**/(base); List get _listBase => _base; @@ -237,7 +237,7 @@ class DelegatingSet extends DelegatingIterable implements Set { /// reflected in [this]. If [base] is already a `Set`, it's returned /// unmodified. static Set/**/ typed/**/(Set base) => - base is Set/**/ ? base : new TypedSet/**/(base); + base is Set/**/ ? base : new TypeSafeSet/**/(base); Set get _setBase => _base; @@ -302,7 +302,7 @@ class DelegatingQueue extends DelegatingIterable implements Queue { /// reflected in [this]. If [base] is already a `Queue`, it's returned /// unmodified. static Queue/**/ typed/**/(Queue base) => - base is Queue/**/ ? base : new TypedQueue/**/(base); + base is Queue/**/ ? base : new TypeSafeQueue/**/(base); Queue get _baseQueue => _base; @@ -359,7 +359,7 @@ class DelegatingMap implements Map { /// reflected in [this]. If [base] is already a `Map`, it's returned /// unmodified. static Map/**/ typed/**/(Map base) => - base is Map ? base : new TypedMap(base); + base is Map ? base : new TypeSafeMap(base); V operator [](Object key) => _base[key]; From 6737aedff766f76a6a8079ac983f652c30884bb3 Mon Sep 17 00:00:00 2001 From: Natalie Weizenbaum Date: Wed, 30 Mar 2016 13:34:14 -0700 Subject: [PATCH 043/235] Don't mix commented and uncommented generics. R=rnystrom@google.com Review URL: https://codereview.chromium.org//1848563002 . --- pkgs/collection/CHANGELOG.md | 4 ++++ pkgs/collection/lib/src/wrappers.dart | 2 +- pkgs/collection/pubspec.yaml | 2 +- 3 files changed, 6 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index cde274e5..023abd43 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.5.1 + +* Fix an incorrectly-declared generic type. + ## 1.5.0 * Add `DelegatingIterable.typed()`, `DelegatingList.typed()`, diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index 97de461c..752987b1 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -359,7 +359,7 @@ class DelegatingMap implements Map { /// reflected in [this]. If [base] is already a `Map`, it's returned /// unmodified. static Map/**/ typed/**/(Map base) => - base is Map ? base : new TypeSafeMap(base); + base is Map/**/ ? base : new TypeSafeMap/**/(base); V operator [](Object key) => _base[key]; diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 5023dbe5..d9680c77 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.5.0 +version: 1.5.1 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection From c8b5bd4414ae8a8cb75f02e44c7232b531c4cfc5 Mon Sep 17 00:00:00 2001 From: Natalie Weizenbaum Date: Mon, 25 Apr 2016 18:17:55 -0700 Subject: [PATCH 044/235] Fix another broken generic type. Closes dart-lang/collection#28 R=lrn@google.com Review URL: https://codereview.chromium.org//1883243002 . --- pkgs/collection/CHANGELOG.md | 4 ++++ pkgs/collection/lib/src/algorithms.dart | 2 +- pkgs/collection/pubspec.yaml | 2 +- 3 files changed, 6 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 023abd43..01da16bf 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.5.2 + +* Fix another incorrectly-declared generic type. + ## 1.5.1 * Fix an incorrectly-declared generic type. diff --git a/pkgs/collection/lib/src/algorithms.dart b/pkgs/collection/lib/src/algorithms.dart index 629951d4..d8ca1029 100644 --- a/pkgs/collection/lib/src/algorithms.dart +++ b/pkgs/collection/lib/src/algorithms.dart @@ -174,7 +174,7 @@ void mergeSort/**/(List/**/ list, {int start: 0, int end, int firstLength = middle - start; int secondLength = end - middle; // secondLength is always the same as firstLength, or one greater. - var scratchSpace = new List(secondLength); + var scratchSpace = new List/**/(secondLength); _mergeSort(list, compare, middle, end, scratchSpace, 0); int firstTarget = end - firstLength; _mergeSort(list, compare, start, middle, list, firstTarget); diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index d9680c77..00a3f7ce 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.5.1 +version: 1.5.2-dev author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection From b77fe79528c981ed2c907ea73ede56e3d55774df Mon Sep 17 00:00:00 2001 From: Natalie Weizenbaum Date: Tue, 3 May 2016 10:54:56 -0700 Subject: [PATCH 045/235] Add GroupSet and SetGroup classes. GroupSet provides a view of the union of a set of sets. SetGroup provides an easy way to manage a GroupSet in a class context. R=floitsch@google.com, lrn@google.com Review URL: https://codereview.chromium.org//1873373002 . --- pkgs/collection/CHANGELOG.md | 7 +- pkgs/collection/lib/collection.dart | 2 + pkgs/collection/lib/src/union_set.dart | 88 +++++++ .../lib/src/union_set_controller.dart | 54 +++++ pkgs/collection/pubspec.yaml | 2 +- .../test/union_set_controller_test.dart | 36 +++ pkgs/collection/test/union_set_test.dart | 222 ++++++++++++++++++ 7 files changed, 409 insertions(+), 2 deletions(-) create mode 100644 pkgs/collection/lib/src/union_set.dart create mode 100644 pkgs/collection/lib/src/union_set_controller.dart create mode 100644 pkgs/collection/test/union_set_controller_test.dart create mode 100644 pkgs/collection/test/union_set_test.dart diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 01da16bf..559e8104 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,4 +1,9 @@ -## 1.5.2 +## 1.6.0 + +* Add a `UnionSet` class that provides a view of the union of a set of sets. + +* Add a `UnionSetController` class that provides a convenient way to manage the + contents of a `UnionSet`. * Fix another incorrectly-declared generic type. diff --git a/pkgs/collection/lib/collection.dart b/pkgs/collection/lib/collection.dart index b2c7e73c..95b84799 100644 --- a/pkgs/collection/lib/collection.dart +++ b/pkgs/collection/lib/collection.dart @@ -9,5 +9,7 @@ export "src/equality.dart"; export "src/iterable_zip.dart"; export "src/priority_queue.dart"; export "src/queue_list.dart"; +export "src/union_set.dart"; +export "src/union_set_controller.dart"; export "src/unmodifiable_wrappers.dart"; export "src/wrappers.dart"; diff --git a/pkgs/collection/lib/src/union_set.dart b/pkgs/collection/lib/src/union_set.dart new file mode 100644 index 00000000..5d88b6bc --- /dev/null +++ b/pkgs/collection/lib/src/union_set.dart @@ -0,0 +1,88 @@ +// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import 'dart:collection'; + +import 'unmodifiable_wrappers.dart'; + +/// A single set that provides a view of the union over a set of sets. +/// +/// Since this is just a view, it reflects all changes in the underlying sets. +/// +/// If an element is in multiple sets and the outer set is ordered, the version +/// in the earliest inner set is preferred. Component sets are assumed to use +/// `==` and `hashCode` for equality. +class UnionSet extends SetBase with UnmodifiableSetMixin { + /// The set of sets that this provides a view of. + final Set> _sets; + + /// Whether the sets in [_sets] are guaranteed to be disjoint. + final bool _disjoint; + + /// Creates a new set that's a view of the union of all sets in [sets]. + /// + /// If any sets in [sets] change, this [UnionSet] reflects that change. If a + /// new set is added to [sets], this [UnionSet] reflects that as well. + /// + /// If [disjoint] is `true`, then all component sets must be disjoint. That + /// is, that they contain no elements in common. This makes many operations + /// including [length] more efficient. If the component sets turn out not to + /// be disjoint, some operations may behave inconsistently. + UnionSet(this._sets, {bool disjoint: false}) : _disjoint = disjoint; + + /// Creates a new set that's a view of the union of all sets in [sets]. + /// + /// If any sets in [sets] change, this [UnionSet] reflects that change. + /// However, unlike [new UnionSet], this creates a copy of its parameter, so + /// changes in [sets] aren't reflected in this [UnionSet]. + /// + /// If [disjoint] is `true`, then all component sets must be disjoint. That + /// is, that they contain no elements in common. This makes many operations + /// including [length] more efficient. If the component sets turn out not to + /// be disjoint, some operations may behave inconsistently. + UnionSet.from(Iterable> sets, {bool disjoint: false}) + : this(sets.toSet(), disjoint: disjoint); + + int get length => _disjoint + ? _sets.fold(0, (length, set) => length + set.length) + : _iterable.length; + + Iterator get iterator => _iterable.iterator; + + /// Returns an iterable over the contents of all the sets in [this]. + Iterable get _iterable => + _disjoint ? _sets.expand((set) => set) : _dedupIterable; + + /// Returns an iterable over the contents of all the sets in [this] that + /// de-duplicates elements. + /// + /// If the sets aren't guaranteed to be disjoint, this keeps track of the + /// elements we've already emitted so that we can de-duplicate them. + Iterable get _dedupIterable { + var seen = new Set(); + return _sets.expand((set) => set).where((element) { + if (seen.contains(element)) return false; + seen.add(element); + return true; + }); + } + + bool contains(Object element) => _sets.any((set) => set.contains(element)); + + E lookup(Object element) { + if (element == null) return null; + + return _sets + .map((set) => set.lookup(element)) + .firstWhere((result) => result != null, orElse: () => null); + } + + Set toSet() { + var result = new Set(); + for (var set in _sets) { + result.addAll(set); + } + return result; + } +} diff --git a/pkgs/collection/lib/src/union_set_controller.dart b/pkgs/collection/lib/src/union_set_controller.dart new file mode 100644 index 00000000..1d0eb743 --- /dev/null +++ b/pkgs/collection/lib/src/union_set_controller.dart @@ -0,0 +1,54 @@ +// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import 'union_set.dart'; + +/// A controller that exposes a view of the union of a collection of sets. +/// +/// This is a convenience class for creating a [UnionSet] whose contents change +/// over the lifetime of a class. For example: +/// +/// ```dart +/// class Engine { +/// Set get activeTests => _activeTestsGroup.set; +/// final _activeTestsGroup = new UnionSetController(); +/// +/// void addSuite(Suite suite) { +/// _activeTestsGroup.add(suite.tests); +/// _runSuite(suite); +/// _activeTestsGroup.remove(suite.tests); +/// } +/// } +/// ``` +class UnionSetController { + /// The [UnionSet] that provides a view of the union of sets in [this]. + UnionSet get set => _set; + UnionSet _set; + + /// The sets whose union is exposed through [set]. + final _sets = new Set>(); + + /// Creates a set of sets that provides a view of the union of those sets. + /// + /// If [disjoint] is `true`, this assumes that all component sets are + /// disjoint—that is, that they contain no elements in common. This makes + /// many operations including [length] more efficient. + UnionSetController({bool disjoint: false}) { + _set = new UnionSet(_sets, disjoint: disjoint); + } + + /// Adds the contents of [component] to [set]. + /// + /// If the contents of [component] change over time, [set] will change + /// accordingly. + void add(Set component) { + _sets.add(component); + } + + /// Removes the contents of [component] to [set]. + /// + /// If another set in [this] has overlapping elements with [component], those + /// elements will remain in [set]. + bool remove(Set component) => _sets.remove(component); +} diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 00a3f7ce..992e7aec 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.5.2-dev +version: 1.6.0 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection diff --git a/pkgs/collection/test/union_set_controller_test.dart b/pkgs/collection/test/union_set_controller_test.dart new file mode 100644 index 00000000..aa8c1c9f --- /dev/null +++ b/pkgs/collection/test/union_set_controller_test.dart @@ -0,0 +1,36 @@ +// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import "package:test/test.dart"; + +import "package:collection/collection.dart"; + +void main() { + var controller; + var innerSet; + setUp(() { + innerSet = new Set.from([1, 2, 3]); + controller = new UnionSetController()..add(innerSet); + }); + + test("exposes a union set", () { + expect(controller.set, unorderedEquals([1, 2, 3])); + + controller.add(new Set.from([3, 4, 5])); + expect(controller.set, unorderedEquals([1, 2, 3, 4, 5])); + + controller.remove(innerSet); + expect(controller.set, unorderedEquals([3, 4, 5])); + }); + + test("exposes a disjoint union set", () { + expect(controller.set, unorderedEquals([1, 2, 3])); + + controller.add(new Set.from([4, 5, 6])); + expect(controller.set, unorderedEquals([1, 2, 3, 4, 5, 6])); + + controller.remove(innerSet); + expect(controller.set, unorderedEquals([4, 5, 6])); + }); +} diff --git a/pkgs/collection/test/union_set_test.dart b/pkgs/collection/test/union_set_test.dart new file mode 100644 index 00000000..15d9d496 --- /dev/null +++ b/pkgs/collection/test/union_set_test.dart @@ -0,0 +1,222 @@ +// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import "package:test/test.dart"; + +import "package:collection/collection.dart"; + +void main() { + group("with an empty outer set", () { + var set; + setUp(() { + set = new UnionSet(new Set()); + }); + + test("length returns 0", () { + expect(set.length, equals(0)); + }); + + test("contains() returns false", () { + expect(set.contains(0), isFalse); + expect(set.contains(null), isFalse); + expect(set.contains("foo"), isFalse); + }); + + test("lookup() returns null", () { + expect(set.lookup(0), isNull); + expect(set.lookup(null), isNull); + expect(set.lookup("foo"), isNull); + }); + + test("toSet() returns an empty set", () { + expect(set.toSet(), isEmpty); + expect(set.toSet(), isNot(same(set))); + }); + + test("map() doesn't run on any elements", () { + expect(set.map(expectAsync((_) {}, count: 0)), isEmpty); + }); + }); + + group("with multiple disjoint sets", () { + var set; + setUp(() { + set = new UnionSet.from([ + new Set.from([1, 2]), + new Set.from([3, 4]), + new Set.from([5]), + new Set() + ], disjoint: true); + }); + + test("length returns the total length", () { + expect(set.length, equals(5)); + }); + + test("contains() returns whether any set contains the element", () { + expect(set.contains(1), isTrue); + expect(set.contains(4), isTrue); + expect(set.contains(5), isTrue); + expect(set.contains(6), isFalse); + }); + + test("lookup() returns elements that are in any set", () { + expect(set.lookup(1), equals(1)); + expect(set.lookup(4), equals(4)); + expect(set.lookup(5), equals(5)); + expect(set.lookup(6), isNull); + }); + + test("toSet() returns the union of all the sets", () { + expect(set.toSet(), unorderedEquals([1, 2, 3, 4, 5])); + expect(set.toSet(), isNot(same(set))); + }); + + test("map() maps the elements", () { + expect(set.map((i) => i * 2), unorderedEquals([2, 4, 6, 8, 10])); + }); + }); + + group("with multiple overlapping sets", () { + var set; + setUp(() { + set = new UnionSet.from([ + new Set.from([1, 2, 3]), + new Set.from([3, 4]), + new Set.from([5, 1]), + new Set() + ]); + }); + + test("length returns the total length", () { + expect(set.length, equals(5)); + }); + + test("contains() returns whether any set contains the element", () { + expect(set.contains(1), isTrue); + expect(set.contains(4), isTrue); + expect(set.contains(5), isTrue); + expect(set.contains(6), isFalse); + }); + + test("lookup() returns elements that are in any set", () { + expect(set.lookup(1), equals(1)); + expect(set.lookup(4), equals(4)); + expect(set.lookup(5), equals(5)); + expect(set.lookup(6), isNull); + }); + + test("lookup() returns the first element in an ordered context", () { + var duration1 = new Duration(seconds: 0); + var duration2 = new Duration(seconds: 0); + expect(duration1, equals(duration2)); + expect(duration1, isNot(same(duration2))); + + var set = new UnionSet.from([ + new Set.from([duration1]), + new Set.from([duration2]) + ]); + + expect(set.lookup(new Duration(seconds: 0)), same(duration1)); + }); + + test("toSet() returns the union of all the sets", () { + expect(set.toSet(), unorderedEquals([1, 2, 3, 4, 5])); + expect(set.toSet(), isNot(same(set))); + }); + + test("map() maps the elements", () { + expect(set.map((i) => i * 2), unorderedEquals([2, 4, 6, 8, 10])); + }); + }); + + group("after an inner set was modified", () { + var set; + setUp(() { + var innerSet = new Set.from([3, 7]); + set = new UnionSet.from([ + new Set.from([1, 2]), + new Set.from([5]), + innerSet + ]); + + innerSet.add(4); + innerSet.remove(7); + }); + + test("length returns the total length", () { + expect(set.length, equals(5)); + }); + + test("contains() returns true for a new element", () { + expect(set.contains(4), isTrue); + }); + + test("contains() returns false for a removed element", () { + expect(set.contains(7), isFalse); + }); + + test("lookup() returns a new element", () { + expect(set.lookup(4), equals(4)); + }); + + test("lookup() doesn't returns a removed element", () { + expect(set.lookup(7), isNull); + }); + + test("toSet() returns the union of all the sets", () { + expect(set.toSet(), unorderedEquals([1, 2, 3, 4, 5])); + expect(set.toSet(), isNot(same(set))); + }); + + test("map() maps the elements", () { + expect(set.map((i) => i * 2), unorderedEquals([2, 4, 6, 8, 10])); + }); + }); + + group("after the outer set was modified", () { + var set; + setUp(() { + var innerSet = new Set.from([6]); + var outerSet = new Set.from([ + new Set.from([1, 2]), + new Set.from([5]), + innerSet + ]); + + set = new UnionSet(outerSet); + outerSet.remove(innerSet); + outerSet.add(new Set.from([3, 4])); + }); + + test("length returns the total length", () { + expect(set.length, equals(5)); + }); + + test("contains() returns true for a new element", () { + expect(set.contains(4), isTrue); + }); + + test("contains() returns false for a removed element", () { + expect(set.contains(6), isFalse); + }); + + test("lookup() returns a new element", () { + expect(set.lookup(4), equals(4)); + }); + + test("lookup() doesn't returns a removed element", () { + expect(set.lookup(6), isNull); + }); + + test("toSet() returns the union of all the sets", () { + expect(set.toSet(), unorderedEquals([1, 2, 3, 4, 5])); + expect(set.toSet(), isNot(same(set))); + }); + + test("map() maps the elements", () { + expect(set.map((i) => i * 2), unorderedEquals([2, 4, 6, 8, 10])); + }); + }); +} From 00d746cc2b4d6a1e138237b784ccfa2ec72333ac Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Stephan=20Schr=C3=B6der?= Date: Thu, 12 May 2016 16:22:42 +0200 Subject: [PATCH 046/235] Add const UnmodifiableSetView.empty(). --- .../lib/src/unmodifiable_wrappers.dart | 112 +++++++++++++++++- .../test/unmodifiable_collection_test.dart | 2 + 2 files changed, 112 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/lib/src/unmodifiable_wrappers.dart b/pkgs/collection/lib/src/unmodifiable_wrappers.dart index 60032866..5dc11077 100644 --- a/pkgs/collection/lib/src/unmodifiable_wrappers.dart +++ b/pkgs/collection/lib/src/unmodifiable_wrappers.dart @@ -2,10 +2,12 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -export "dart:collection" show UnmodifiableListView, UnmodifiableMapView; +import 'dart:collection' show IterableBase; import 'wrappers.dart'; +export "dart:collection" show UnmodifiableListView, UnmodifiableMapView; + /// A fixed-length list. /// /// A `NonGrowableListView` contains a [List] object and ensures that @@ -91,10 +93,116 @@ abstract class NonGrowableListMixin implements List { /// such as [add] and [remove], throw an [UnsupportedError]. /// Permitted operations defer to the wrapped set. class UnmodifiableSetView extends DelegatingSet - with UnmodifiableSetMixin { + with UnmodifiableSetMixin { UnmodifiableSetView(Set setBase) : super(setBase); + + /// Returns an unmodifiable empty set. + const factory UnmodifiableSetView.empty() = _EmptyUnmodifiableSet; +} + +/// An unmodifiable empty set that doesn't allow adding-operations. +/// Removing-operations are ok, because the don't modify the contents of an +/// empty set. +// A super class with const constructor is needed, so IterableBase fits. +class _EmptyUnmodifiableSet extends IterableBase + implements UnmodifiableSetView { + static /*=T*/ _throw/**/() { + throw new UnsupportedError( + "Cannot call modifying operations on an unmodifiable Set"); + } + + /// Returns an empty Iterator. + // new Iterabel.generate(0).iterator reduces to + // new EmptyIterable().iterator so this should be efficient. + Iterator get _emptyIterator => new Iterable.generate(0).iterator; + + /// Returns always an empty Iterator; + @override + Iterator get iterator => _emptyIterator; + + /// Returns always 0; + /// The length of en empty Set fixed to 0. + @override + int get length => 0; + + const _EmptyUnmodifiableSet(); + + /// Throws an [UnsupportedError]; + /// modifying operations are disallowed on unmodifiable sets. + @override + bool add(E value) => _throw(); + + /// Throws an [UnsupportedError]; + /// operations that add to the set are disallowed. + @override + void addAll(Iterable elements) => _throw(); + + /// Throws an [UnsupportedError]; + /// modifying operations are disallowed on unmodifiable sets. + @override + void clear() => _throw(); + + /// Returns always false; + /// The empty set doesn't contain any elements. + @override + bool contains(Object element) => false; + + /// Returns true if other is empty, else false: + @override + bool containsAll(Iterable other) => other.isEmpty; + + /// Returns always null; + /// The empty set doesn't contain any elements and therefore returns null. + @override + E lookup(Object element) => null; + + /// Throws an [UnsupportedError]; + /// modifying operations are disallowed on unmodifiable sets. + @override + bool remove(Object element) => _throw(); + + /// Throws an [UnsupportedError]; + /// modifying operations are disallowed on unmodifiable sets. + @override + void removeAll(Iterable elements) => _throw(); + + /// Throws an [UnsupportedError]; + /// modifying operations are disallowed on unmodifiable sets. + @override + void removeWhere(bool test(E element)) => _throw(); + + /// Throws an [UnsupportedError]; + /// modifying operations are disallowed on unmodifiable sets. + @override + void retainWhere(bool test(E element)) => _throw(); + + /// Throws an [UnsupportedError]; + /// modifying operations are disallowed on unmodifiable sets. + @override + void retainAll(Iterable elements) => _throw(); + + /// Returns itself because the behaviour (in regards to add(), remove()) + /// of the returning Set should be the same. + @override + Set toSet() => this; + + /// Returns a copy of other; + /// union with an empty set leads to a copy. + @override + Set union(Set other) => new Set.from(other); + + /// Returns an empty set; + /// there are no elements in this (empty) set that are also in other. + @override + Set intersection(Set other) => new Set(); + + /// Returns an empty set; + /// there are no elements in this (empty) set that aren't in other. + @override + Set difference(Set other) => new Set(); } + /// Mixin class that implements a throwing version of all set operations that /// change the Set. abstract class UnmodifiableSetMixin implements Set { diff --git a/pkgs/collection/test/unmodifiable_collection_test.dart b/pkgs/collection/test/unmodifiable_collection_test.dart index 682a4060..cdb51017 100644 --- a/pkgs/collection/test/unmodifiable_collection_test.dart +++ b/pkgs/collection/test/unmodifiable_collection_test.dart @@ -35,6 +35,8 @@ main() { Set aSet = new Set(); testUnmodifiableSet(aSet, new UnmodifiableSetView(aSet), "empty"); + aSet = new Set(); + testUnmodifiableSet(aSet, const UnmodifiableSetView.empty(), "const empty"); aSet = new Set.from([42]); testUnmodifiableSet(aSet, new UnmodifiableSetView(aSet), "single-42"); aSet = new Set.from([7]); From ae23dc2aa1f0dab939423c3438d6bd3b85c6cb77 Mon Sep 17 00:00:00 2001 From: Natalie Weizenbaum Date: Thu, 12 May 2016 17:01:52 -0700 Subject: [PATCH 047/235] Style tweaks. --- .../lib/src/empty_unmodifiable_set.dart | 40 ++++++ .../lib/src/unmodifiable_wrappers.dart | 115 ++---------------- 2 files changed, 47 insertions(+), 108 deletions(-) create mode 100644 pkgs/collection/lib/src/empty_unmodifiable_set.dart diff --git a/pkgs/collection/lib/src/empty_unmodifiable_set.dart b/pkgs/collection/lib/src/empty_unmodifiable_set.dart new file mode 100644 index 00000000..581532f6 --- /dev/null +++ b/pkgs/collection/lib/src/empty_unmodifiable_set.dart @@ -0,0 +1,40 @@ +// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import 'dart:collection'; + +import 'unmodifiable_wrappers.dart'; + +// Unfortunately, we can't use UnmodifiableSetMixin here, since const classes +// can't use mixins. +/// An unmodifiable, empty set that can have a const constructor. +class EmptyUnmodifiableSet extends IterableBase + implements UnmodifiableSetView { + static /*=T*/ _throw/**/() { + throw new UnsupportedError("Cannot modify an unmodifiable Set"); + } + + Iterator get iterator => new Iterable.empty().iterator; + int get length => 0; + + const EmptyUnmodifiableSet(); + + bool contains(Object element) => false; + bool containsAll(Iterable other) => other.isEmpty; + E lookup(Object element) => null; + Set toSet() => new Set(); + Set union(Set other) => new Set.from(other); + Set intersection(Set other) => new Set(); + Set difference(Set other) => new Set(); + + bool add(E value) => _throw(); + void addAll(Iterable elements) => _throw(); + void clear() => _throw(); + bool remove(Object element) => _throw(); + void removeAll(Iterable elements) => _throw(); + void removeWhere(bool test(E element)) => _throw(); + void retainWhere(bool test(E element)) => _throw(); + void retainAll(Iterable elements) => _throw(); +} + diff --git a/pkgs/collection/lib/src/unmodifiable_wrappers.dart b/pkgs/collection/lib/src/unmodifiable_wrappers.dart index 5dc11077..5efbee4c 100644 --- a/pkgs/collection/lib/src/unmodifiable_wrappers.dart +++ b/pkgs/collection/lib/src/unmodifiable_wrappers.dart @@ -2,11 +2,10 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import 'dart:collection' show IterableBase; +export "dart:collection" show UnmodifiableListView, UnmodifiableMapView; import 'wrappers.dart'; - -export "dart:collection" show UnmodifiableListView, UnmodifiableMapView; +import 'empty_unmodifiable_set.dart'; /// A fixed-length list. /// @@ -96,113 +95,13 @@ class UnmodifiableSetView extends DelegatingSet with UnmodifiableSetMixin { UnmodifiableSetView(Set setBase) : super(setBase); - /// Returns an unmodifiable empty set. - const factory UnmodifiableSetView.empty() = _EmptyUnmodifiableSet; + /// An unmodifiable empty set. + /// + /// This is the same as `new UnmodifiableSetView(new Set())`, except that it + /// can be used in const contexts. + const factory UnmodifiableSetView.empty() = EmptyUnmodifiableSet; } -/// An unmodifiable empty set that doesn't allow adding-operations. -/// Removing-operations are ok, because the don't modify the contents of an -/// empty set. -// A super class with const constructor is needed, so IterableBase fits. -class _EmptyUnmodifiableSet extends IterableBase - implements UnmodifiableSetView { - static /*=T*/ _throw/**/() { - throw new UnsupportedError( - "Cannot call modifying operations on an unmodifiable Set"); - } - - /// Returns an empty Iterator. - // new Iterabel.generate(0).iterator reduces to - // new EmptyIterable().iterator so this should be efficient. - Iterator get _emptyIterator => new Iterable.generate(0).iterator; - - /// Returns always an empty Iterator; - @override - Iterator get iterator => _emptyIterator; - - /// Returns always 0; - /// The length of en empty Set fixed to 0. - @override - int get length => 0; - - const _EmptyUnmodifiableSet(); - - /// Throws an [UnsupportedError]; - /// modifying operations are disallowed on unmodifiable sets. - @override - bool add(E value) => _throw(); - - /// Throws an [UnsupportedError]; - /// operations that add to the set are disallowed. - @override - void addAll(Iterable elements) => _throw(); - - /// Throws an [UnsupportedError]; - /// modifying operations are disallowed on unmodifiable sets. - @override - void clear() => _throw(); - - /// Returns always false; - /// The empty set doesn't contain any elements. - @override - bool contains(Object element) => false; - - /// Returns true if other is empty, else false: - @override - bool containsAll(Iterable other) => other.isEmpty; - - /// Returns always null; - /// The empty set doesn't contain any elements and therefore returns null. - @override - E lookup(Object element) => null; - - /// Throws an [UnsupportedError]; - /// modifying operations are disallowed on unmodifiable sets. - @override - bool remove(Object element) => _throw(); - - /// Throws an [UnsupportedError]; - /// modifying operations are disallowed on unmodifiable sets. - @override - void removeAll(Iterable elements) => _throw(); - - /// Throws an [UnsupportedError]; - /// modifying operations are disallowed on unmodifiable sets. - @override - void removeWhere(bool test(E element)) => _throw(); - - /// Throws an [UnsupportedError]; - /// modifying operations are disallowed on unmodifiable sets. - @override - void retainWhere(bool test(E element)) => _throw(); - - /// Throws an [UnsupportedError]; - /// modifying operations are disallowed on unmodifiable sets. - @override - void retainAll(Iterable elements) => _throw(); - - /// Returns itself because the behaviour (in regards to add(), remove()) - /// of the returning Set should be the same. - @override - Set toSet() => this; - - /// Returns a copy of other; - /// union with an empty set leads to a copy. - @override - Set union(Set other) => new Set.from(other); - - /// Returns an empty set; - /// there are no elements in this (empty) set that are also in other. - @override - Set intersection(Set other) => new Set(); - - /// Returns an empty set; - /// there are no elements in this (empty) set that aren't in other. - @override - Set difference(Set other) => new Set(); -} - - /// Mixin class that implements a throwing version of all set operations that /// change the Set. abstract class UnmodifiableSetMixin implements Set { From 75289d863404c1afa4e994a1e2fbcde25e3c1855 Mon Sep 17 00:00:00 2001 From: Natalie Weizenbaum Date: Thu, 12 May 2016 17:02:20 -0700 Subject: [PATCH 048/235] Bump the version and add a CHANGELOG entry. --- pkgs/collection/CHANGELOG.md | 4 ++++ pkgs/collection/pubspec.yaml | 2 +- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 559e8104..de42222d 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.7.0 + +* Add a `const UnmodifiableSetView.empty()` constructor. + ## 1.6.0 * Add a `UnionSet` class that provides a view of the union of a set of sets. diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 992e7aec..7c88550f 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.6.0 +version: 1.7.0 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection From 44bd28301b1b41efcd41a5334e2c9ce76383f639 Mon Sep 17 00:00:00 2001 From: Natalie Weizenbaum Date: Wed, 25 May 2016 14:30:57 -0700 Subject: [PATCH 049/235] Add top-level collection-manipulation functions. These come from various package-specific utility library across the Dart ecosystem. R=lrn@google.com Review URL: https://codereview.chromium.org//1994743003 . --- pkgs/collection/CHANGELOG.md | 17 +++ pkgs/collection/lib/collection.dart | 1 + pkgs/collection/lib/src/functions.dart | 139 +++++++++++++++++ pkgs/collection/pubspec.yaml | 2 +- pkgs/collection/test/functions_test.dart | 184 +++++++++++++++++++++++ 5 files changed, 342 insertions(+), 1 deletion(-) create mode 100644 pkgs/collection/lib/src/functions.dart create mode 100644 pkgs/collection/test/functions_test.dart diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index de42222d..90312a3b 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,20 @@ +## 1.8.0 + +* Add a top-level `mapMap()` function that works like `Iterable.map()` on a + `Map`. + +* Add a top-level `mergeMaps()` function that creates a new map with the + combined contents of two existing maps. + +* Add a top-level `groupBy()` function that converts an `Iterable` to a `Map` by + grouping its elements using a function. + +* Add top-level `minBy()` and `maxBy()` functions that return the minimum and + maximum values in an `Iterable`, respectively, ordered by a derived value. + +* Add a top-level `transitiveClosure()` function that returns the transitive + closure of a directed graph. + ## 1.7.0 * Add a `const UnmodifiableSetView.empty()` constructor. diff --git a/pkgs/collection/lib/collection.dart b/pkgs/collection/lib/collection.dart index 95b84799..58d98f70 100644 --- a/pkgs/collection/lib/collection.dart +++ b/pkgs/collection/lib/collection.dart @@ -6,6 +6,7 @@ export "src/algorithms.dart"; export "src/canonicalized_map.dart"; export "src/comparators.dart"; export "src/equality.dart"; +export "src/functions.dart"; export "src/iterable_zip.dart"; export "src/priority_queue.dart"; export "src/queue_list.dart"; diff --git a/pkgs/collection/lib/src/functions.dart b/pkgs/collection/lib/src/functions.dart new file mode 100644 index 00000000..7f3ff998 --- /dev/null +++ b/pkgs/collection/lib/src/functions.dart @@ -0,0 +1,139 @@ +// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import 'utils.dart'; + +// TODO(nweiz): When sdk#26488 is fixed, use overloads to ensure that if [key] +// or [value] isn't passed, `K2`/`V2` defaults to `K1`/`V1`, respectively. +/// Creates a new map from [map] with new keys and values. +/// +/// The return values of [key] are used as the keys and the return values of +/// [value] are used as the values for the new map. +Map/**/ mapMap/**/(Map/**/ map, + {/*=K2*/ key(/*=K1*/ key, /*=V1*/ value), + /*=V2*/ value(/*=K1*/ key, /*=V1*/ value)}) { + key ??= (mapKey, _) => mapKey as dynamic/*=K2*/; + value ??= (_, mapValue) => mapValue as dynamic/*=V2*/; + + var result = /**/{}; + map.forEach((mapKey, mapValue) { + result[key(mapKey, mapValue)] = value(mapKey, mapValue); + }); + return result; +} + +/// Returns a new map with all key/value pairs in both [map1] and [map2]. +/// +/// If there are keys that occur in both maps, the [value] function is used to +/// select the value that goes into the resulting map based on the two original +/// values. If [value] is omitted, the value from [map2] is used. +Map/**/ mergeMaps/**/(Map/**/ map1, Map/**/ map2, + {/*=V*/ value(/*=V*/ value1, /*=V*/ value2)}) { + var result = new Map/**/.from(map1); + if (value == null) return result..addAll(map2); + + map2.forEach((key, mapValue) { + result[key] = result.containsKey(key) + ? value(result[key], mapValue) + : mapValue; + }); + return result; +} + +/// Groups the elements in [values] by the value returned by [key]. +/// +/// Returns a map from keys computed by [key] to a list of all values for which +/// [key] returns that key. The values appear in the list in the same relative +/// order as in [values]. +Map*/> groupBy/**/(Iterable/**/ values, + /*=T*/ key(/*=S*/ element)) { + var map = /*>*/{}; + for (var element in values) { + var list = map.putIfAbsent(key(element), () => []); + list.add(element); + } + return map; +} + +/// Returns the element of [values] for which [orderBy] returns the minimum +/// value. +/// +/// The values returned by [orderBy] are compared using the [compare] function. +/// If [compare] is omitted, values must implement [Comparable] and they are +/// compared using their [Comparable.compareTo]. +/*=S*/ minBy/**/(Iterable/**/ values, /*=T*/ orderBy(/*=S*/ element), + {int compare(/*=T*/ value1, /*=T*/ value2)}) { + compare ??= defaultCompare/**/(); + + var/*=S*/ minValue; + var/*=T*/ minOrderBy; + for (var element in values) { + var elementOrderBy = orderBy(element); + if (minOrderBy == null || compare(elementOrderBy, minOrderBy) < 0) { + minValue = element; + minOrderBy = elementOrderBy; + } + } + return min; +} + +/// Returns the element of [values] for which [orderBy] returns the maximum +/// value. +/// +/// The values returned by [orderBy] are compared using the [compare] function. +/// If [compare] is omitted, values must implement [Comparable] and they are +/// compared using their [Comparable.compareTo]. +/*=S*/ maxBy/**/(Iterable/**/ values, /*=T*/ orderBy(/*=S*/ element), + {int compare(/*=T*/ value1, /*=T*/ value2)}) { + compare ??= defaultCompare/**/(); + + var/*=S*/ maxValue; + var/*=T*/ maxOrderBy; + for (var element in values) { + var elementOrderBy = orderBy(element); + if (maxOrderBy == null || compare(elementOrderBy, maxOrderBy) > 0) { + maxValue = element; + maxOrderBy = elementOrderBy; + } + } + return max; +} + +/// Returns the [transitive closure][] of [graph]. +/// +/// [transitive closure]: https://en.wikipedia.org/wiki/Transitive_closure +/// +/// This interprets [graph] as a directed graph with a vertex for each key and +/// edges from each key to the values associated with that key. +/// +/// Assumes that every vertex in the graph has a key to represent it, even if +/// that vertex has no outgoing edges. For example, `{"a": ["b"]}` is not valid, +/// but `{"a": ["b"], "b": []}` is. +Map*/> transitiveClosure/**/( + Map*/> graph) { + // This uses [Warshall's algorithm][], modified not to add a vertex from each + // node to itself. + // + // [Warshall's algorithm]: https://en.wikipedia.org/wiki/Floyd%E2%80%93Warshall_algorithm#Applications_and_generalizations. + var result = /**/{}; + graph.forEach((vertex, edges) { + result[vertex] = new Set/**/.from(edges); + }); + + // Lists are faster to iterate than maps, so we create a list since we're + // iterating repeatedly. + var keys = graph.keys.toList(); + for (var vertex1 in keys) { + for (var vertex2 in keys) { + for (var vertex3 in keys) { + if (result[vertex2].contains(vertex1) && + result[vertex1].contains(vertex3)) { + result[vertex2].add(vertex3); + } + } + } + } + + return result; +} diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 7c88550f..06c2cb76 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.7.0 +version: 1.8.0 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection diff --git a/pkgs/collection/test/functions_test.dart b/pkgs/collection/test/functions_test.dart new file mode 100644 index 00000000..4d928bf2 --- /dev/null +++ b/pkgs/collection/test/functions_test.dart @@ -0,0 +1,184 @@ +// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import "package:test/test.dart"; + +import "package:collection/collection.dart"; + +void main() { + group("mapMap()", () { + test("with an empty map returns an empty map", () { + expect( + mapMap({}, + key: expectAsync((_, __) {}, count: 0), + value: expectAsync((_, __) {}, count: 0)), + isEmpty); + }); + + test("with no callbacks, returns a copy of the map", () { + var map = {"foo": 1, "bar": 2}; + var result = mapMap(map); + expect(result, equals({"foo": 1, "bar": 2})); + + // The resulting map should be a copy. + result["foo"] = 3; + expect(map, equals({"foo": 1, "bar": 2})); + }); + + test("maps the map's keys", () { + expect(mapMap({"foo": 1, "bar": 2}, key: (key, value) => key[value]), + equals({"o": 1, "r": 2})); + }); + + test("maps the map's values", () { + expect(mapMap({"foo": 1, "bar": 2}, value: (key, value) => key[value]), + equals({"foo": "o", "bar": "r"})); + }); + + test("maps both the map's keys and values", () { + expect( + mapMap({"foo": 1, "bar": 2}, + key: (key, value) => "$key$value", + value: (key, value) => key[value]), + equals({"foo1": "o", "bar2": "r"})); + }); + }); + + group("mergeMaps()", () { + test("with empty maps returns an empty map", () { + expect(mergeMaps({}, {}, value: expectAsync((_, __) {}, count: 0)), + isEmpty); + }); + + test("returns a map with all values in both input maps", () { + expect(mergeMaps({"foo": 1, "bar": 2}, {"baz": 3, "qux": 4}), + equals({"foo": 1, "bar": 2, "baz": 3, "qux": 4})); + }); + + test("the second map's values win by default", () { + expect(mergeMaps({"foo": 1, "bar": 2}, {"bar": 3, "baz": 4}), + equals({"foo": 1, "bar": 3, "baz": 4})); + }); + + test("uses the callback to merge values", () { + expect(mergeMaps({"foo": 1, "bar": 2}, {"bar": 3, "baz": 4}, + value: (value1, value2) => value1 + value2), + equals({"foo": 1, "bar": 5, "baz": 4})); + }); + }); + + group("groupBy()", () { + test("returns an empty map for an empty iterable", () { + expect(groupBy([], expectAsync((_) {}, count: 0)), isEmpty); + }); + + test("groups elements by the function's return value", () { + expect( + groupBy(["foo", "bar", "baz", "bop", "qux"], (string) => string[1]), + equals({"o": ["foo", "bop"], "a": ["bar", "baz"], "u": ["qux"]})); + }); + }); + + group("minBy()", () { + test("returns null for an empty iterable", () { + expect( + minBy([], expectAsync((_) {}, count: 0), + compare: expectAsync((_, __) {}, count: 0)), + isNull); + }); + + test("returns the element for which the ordering function returns the " + "smallest value", () { + expect( + minBy( + [{"foo": 3}, {"foo": 5}, {"foo": 4}, {"foo": 1}, {"foo": 2}], + (map) => map["foo"]), + equals({"foo": 1})); + }); + + test("uses a custom comparator if provided", () { + expect( + minBy( + [{"foo": 3}, {"foo": 5}, {"foo": 4}, {"foo": 1}, {"foo": 2}], + (map) => map, + compare: (map1, map2) => map1["foo"].compareTo(map2["foo"])), + equals({"foo": 1})); + }); + }); + + group("maxBy()", () { + test("returns null for an empty iterable", () { + expect( + maxBy([], expectAsync((_) {}, count: 0), + compare: expectAsync((_, __) {}, count: 0)), + isNull); + }); + + test("returns the element for which the ordering function returns the " + "largest value", () { + expect( + maxBy( + [{"foo": 3}, {"foo": 5}, {"foo": 4}, {"foo": 1}, {"foo": 2}], + (map) => map["foo"]), + equals({"foo": 5})); + }); + + test("uses a custom comparator if provided", () { + expect( + maxBy( + [{"foo": 3}, {"foo": 5}, {"foo": 4}, {"foo": 1}, {"foo": 2}], + (map) => map, + compare: (map1, map2) => map1["foo"].compareTo(map2["foo"])), + equals({"foo": 5})); + }); + }); + + group("transitiveClosure()", () { + test("returns an empty map for an empty graph", () { + expect(transitiveClosure({}), isEmpty); + }); + + test("returns the input when there are no transitive connections", () { + expect(transitiveClosure({ + "foo": ["bar"], + "bar": [], + "bang": ["qux", "zap"], + "qux": [], + "zap": [] + }), equals({ + "foo": ["bar"], + "bar": [], + "bang": ["qux", "zap"], + "qux": [], + "zap": [] + })); + }); + + test("flattens transitive connections", () { + expect(transitiveClosure({ + "qux": [], + "bar": ["baz"], + "baz": ["qux"], + "foo": ["bar"] + }), equals({ + "foo": ["bar", "baz", "qux"], + "bar": ["baz", "qux"], + "baz": ["qux"], + "qux": [] + })); + }); + + test("handles loops", () { + expect(transitiveClosure({ + "foo": ["bar"], + "bar": ["baz"], + "baz": ["foo"] + }), equals({ + "foo": ["bar", "baz", "foo"], + "bar": ["baz", "foo", "bar"], + "baz": ["foo", "bar", "baz"] + })); + }); + }); +} From 42cdc6510331bcda35f23d71db89e14ff50b0214 Mon Sep 17 00:00:00 2001 From: Natalie Weizenbaum Date: Wed, 25 May 2016 14:46:18 -0700 Subject: [PATCH 050/235] Fix incorrect identifiers. R=kevmoo@google.com Review URL: https://codereview.chromium.org//2015623003 . --- pkgs/collection/lib/src/functions.dart | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/lib/src/functions.dart b/pkgs/collection/lib/src/functions.dart index 7f3ff998..9c973b8a 100644 --- a/pkgs/collection/lib/src/functions.dart +++ b/pkgs/collection/lib/src/functions.dart @@ -75,7 +75,7 @@ Map*/> groupBy/**/(Iterable/**/ values, minOrderBy = elementOrderBy; } } - return min; + return minValue; } /// Returns the element of [values] for which [orderBy] returns the maximum @@ -97,7 +97,7 @@ Map*/> groupBy/**/(Iterable/**/ values, maxOrderBy = elementOrderBy; } } - return max; + return maxValue; } /// Returns the [transitive closure][] of [graph]. From 2e93e7615e393a0881462d673d2eaa2a5338ff50 Mon Sep 17 00:00:00 2001 From: Natalie Weizenbaum Date: Thu, 23 Jun 2016 13:53:07 -0700 Subject: [PATCH 051/235] Add a stronglyConnectedComponents() function. R=lrn@google.com Review URL: https://codereview.chromium.org//2069253002 . --- pkgs/collection/CHANGELOG.md | 5 ++ pkgs/collection/lib/src/functions.dart | 77 +++++++++++++++++++- pkgs/collection/pubspec.yaml | 2 +- pkgs/collection/test/functions_test.dart | 93 ++++++++++++++++++++++++ 4 files changed, 172 insertions(+), 5 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 90312a3b..dd5bc2c8 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,8 @@ +## 1.9.0 + +* Add a top-level `stronglyConnectedComponents()` function that returns the + strongly connected components in a directed graph. + ## 1.8.0 * Add a top-level `mapMap()` function that works like `Iterable.map()` on a diff --git a/pkgs/collection/lib/src/functions.dart b/pkgs/collection/lib/src/functions.dart index 9c973b8a..6e5bb0ad 100644 --- a/pkgs/collection/lib/src/functions.dart +++ b/pkgs/collection/lib/src/functions.dart @@ -2,6 +2,9 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. +import 'dart:math' as math; +import 'dart:collection'; + import 'utils.dart'; // TODO(nweiz): When sdk#26488 is fixed, use overloads to ensure that if [key] @@ -104,12 +107,13 @@ Map*/> groupBy/**/(Iterable/**/ values, /// /// [transitive closure]: https://en.wikipedia.org/wiki/Transitive_closure /// -/// This interprets [graph] as a directed graph with a vertex for each key and -/// edges from each key to the values associated with that key. +/// Interprets [graph] as a directed graph with a vertex for each key and edges +/// from each key to the values that the key maps to. /// /// Assumes that every vertex in the graph has a key to represent it, even if -/// that vertex has no outgoing edges. For example, `{"a": ["b"]}` is not valid, -/// but `{"a": ["b"], "b": []}` is. +/// that vertex has no outgoing edges. This isn't checked, but if it's not +/// satisfied, the function may crash or provide unexpected output. For example, +/// `{"a": ["b"]}` is not valid, but `{"a": ["b"], "b": []}` is. Map*/> transitiveClosure/**/( Map*/> graph) { // This uses [Warshall's algorithm][], modified not to add a vertex from each @@ -137,3 +141,68 @@ Map*/> transitiveClosure/**/( return result; } + +/// Returns the [strongly connected components][] of [graph], in topological +/// order. +/// +/// [strongly connected components]: https://en.wikipedia.org/wiki/Strongly_connected_component +/// +/// Interprets [graph] as a directed graph with a vertex for each key and edges +/// from each key to the values that the key maps to. +/// +/// Assumes that every vertex in the graph has a key to represent it, even if +/// that vertex has no outgoing edges. This isn't checked, but if it's not +/// satisfied, the function may crash or provide unexpected output. For example, +/// `{"a": ["b"]}` is not valid, but `{"a": ["b"], "b": []}` is. +List*/> stronglyConnectedComponents/**/( + Map*/> graph) { + // This uses [Tarjan's algorithm][]. + // + // [Tarjan's algorithm]: https://en.wikipedia.org/wiki/Tarjan%27s_strongly_connected_components_algorithm + var index = 0; + var stack = /**/[]; + var result = /*>*/[]; + + // The order of these doesn't matter, so we use un-linked implementations to + // avoid unnecessary overhead. + var indices = new HashMap/**/(); + var lowLinks = new HashMap/**/(); + var onStack = new HashSet/**/(); + + strongConnect(/*=T*/ vertex) { + indices[vertex] = index; + lowLinks[vertex] = index; + index++; + + stack.add(vertex); + onStack.add(vertex); + + for (var successor in graph[vertex]) { + if (!indices.containsKey(successor)) { + strongConnect(successor); + lowLinks[vertex] = math.min(lowLinks[vertex], lowLinks[successor]); + } else if (onStack.contains(successor)) { + lowLinks[vertex] = math.min(lowLinks[vertex], lowLinks[successor]); + } + } + + if (lowLinks[vertex] == indices[vertex]) { + var component = new Set/**/(); + var/*=T*/ neighbor; + do { + neighbor = stack.removeLast(); + onStack.remove(neighbor); + component.add(neighbor); + } while (neighbor != vertex); + result.add(component); + } + } + + for (var vertex in graph.keys) { + if (!indices.containsKey(vertex)) strongConnect(vertex); + } + + // Tarjan's algorithm produces a reverse-topological sort, so we reverse it to + // get a normal topological sort. + return result.reversed.toList(); +} diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 06c2cb76..f5c8f9fb 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.8.0 +version: 1.9.0 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection diff --git a/pkgs/collection/test/functions_test.dart b/pkgs/collection/test/functions_test.dart index 4d928bf2..ab56c3be 100644 --- a/pkgs/collection/test/functions_test.dart +++ b/pkgs/collection/test/functions_test.dart @@ -181,4 +181,97 @@ void main() { })); }); }); + + group("stronglyConnectedComponents()", () { + test("returns an empty list for an empty graph", () { + expect(stronglyConnectedComponents({}), isEmpty); + }); + + test("returns one set for a singleton graph", () { + expect(stronglyConnectedComponents({"a": []}), + equals([new Set.from(["a"])])); + }); + + test("returns two sets for a two-element tree", () { + expect(stronglyConnectedComponents({"a": ["b"], "b": []}), + equals([new Set.from(["a"]), new Set.from(["b"])])); + }); + + test("returns one set for a two-element loop", () { + expect(stronglyConnectedComponents({"a": ["b"], "b": ["a"]}), + equals([new Set.from(["a", "b"])])); + }); + + test("returns individual vertices for a tree", () { + expect(stronglyConnectedComponents({ + "foo": ["bar"], + "bar": ["baz", "bang"], + "baz": ["qux"], + "bang": ["zap"], + "qux": [], + "zap": [] + }), equals([ + // This is expected to return *a* topological ordering, but this isn't + // the only valid one. If the function implementation changes in the + // future, this test may need to be updated. + new Set.from(["foo"]), + new Set.from(["bar"]), + new Set.from(["bang"]), + new Set.from(["zap"]), + new Set.from(["baz"]), + new Set.from(["qux"]) + ])); + }); + + test("returns a single set for a fully cyclic graph", () { + expect(stronglyConnectedComponents({ + "foo": ["bar"], + "bar": ["baz"], + "baz": ["bang"], + "bang": ["foo"] + }), equals([new Set.from(["foo", "bar", "baz", "bang"])])); + }); + + test("returns separate sets for each strongly connected component", () { + // https://en.wikipedia.org/wiki/Strongly_connected_component#/media/File:Scc.png + expect(stronglyConnectedComponents({ + "a": ["b"], + "b": ["c", "e", "f"], + "c": ["d", "g"], + "d": ["c", "h"], + "e": ["a", "f"], + "f": ["g"], + "g": ["f"], + "h": ["g", "d"] + }), equals([ + // This is expected to return *a* topological ordering, but this isn't + // the only valid one. If the function implementation changes in the + // future, this test may need to be updated. + new Set.from(["a", "b", "e"]), + new Set.from(["c", "d", "h"]), + new Set.from(["f", "g"]), + ])); + }); + + test("always returns components in topological order", () { + expect(stronglyConnectedComponents({ + "bar": ["baz", "bang"], + "zap": [], + "baz": ["qux"], + "qux": [], + "foo": ["bar"], + "bang": ["zap"] + }), equals([ + // This is expected to return *a* topological ordering, but this isn't + // the only valid one. If the function implementation changes in the + // future, this test may need to be updated. + new Set.from(["foo"]), + new Set.from(["bar"]), + new Set.from(["bang"]), + new Set.from(["zap"]), + new Set.from(["baz"]), + new Set.from(["qux"]) + ])); + }); + }); } From 2eb39aedb10041d87e5030d1fb0eb89c1d55442c Mon Sep 17 00:00:00 2001 From: mockturtl Date: Tue, 16 Aug 2016 09:12:11 -0400 Subject: [PATCH 052/235] fix docs External links render as code, for example: https://www.dartdocs.org/documentation/collection/1.9.0/collection/compareNatural.html --- pkgs/collection/lib/src/comparators.dart | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/pkgs/collection/lib/src/comparators.dart b/pkgs/collection/lib/src/comparators.dart index 49951009..ca2b3c77 100644 --- a/pkgs/collection/lib/src/comparators.dart +++ b/pkgs/collection/lib/src/comparators.dart @@ -145,7 +145,7 @@ int compareAsciiLowerCase(String a, String b) { return defaultResult.sign; } -/// Compares strings [a] and [b] according to [natural sort ordering]. +/// Compares strings [a] and [b] according to [natural sort ordering][]. /// /// A natural sort ordering is a lexical ordering where embedded /// numerals (digit sequences) are treated as a single unit and ordered by @@ -175,7 +175,7 @@ int compareNatural(String a, String b) { } /// Compares strings [a] and [b] according to lower-case -/// [natural sort ordering]. +/// [natural sort ordering][]. /// /// ASCII letters are converted to lower case before being compared, like /// for [compareAsciiLowerCase], then the result is compared like for @@ -212,7 +212,7 @@ int compareAsciiLowerCaseNatural(String a, String b) { } /// Compares strings [a] and [b] according to upper-case -/// [natural sort ordering]. +/// [natural sort ordering][]. /// /// ASCII letters are converted to upper case before being compared, like /// for [compareAsciiUpperCase], then the result is compared like for From d0748ce9bdd7eba94fa9c549d3e52e2592d088ce Mon Sep 17 00:00:00 2001 From: Natalie Weizenbaum Date: Tue, 16 Aug 2016 11:53:53 -0700 Subject: [PATCH 053/235] Update the pubspec and changelog. --- pkgs/collection/CHANGELOG.md | 4 ++++ pkgs/collection/pubspec.yaml | 2 +- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index dd5bc2c8..330e026a 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.9.1 + +* Fix some documentation bugs. + ## 1.9.0 * Add a top-level `stronglyConnectedComponents()` function that returns the diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index f5c8f9fb..eb9a3a26 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.9.0 +version: 1.9.1 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection From 12da81254d2f6b6716a11e487bb40cb795a71b0b Mon Sep 17 00:00:00 2001 From: Florian Loitsch Date: Thu, 20 Oct 2016 14:37:34 +0200 Subject: [PATCH 054/235] Update Set.difference to take a Set. BUG= http://dartbug.com/27573 R=lrn@google.com Review URL: https://codereview.chromium.org//2418763002 . --- pkgs/collection/CHANGELOG.md | 4 ++++ pkgs/collection/lib/src/typed_wrappers.dart | 2 +- pkgs/collection/lib/src/wrappers.dart | 6 +++--- pkgs/collection/pubspec.yaml | 4 ++-- 4 files changed, 10 insertions(+), 6 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 330e026a..2edb5e60 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.9.2 + +* `Set.difference` now takes a `Set` as argument. + ## 1.9.1 * Fix some documentation bugs. diff --git a/pkgs/collection/lib/src/typed_wrappers.dart b/pkgs/collection/lib/src/typed_wrappers.dart index 1dcb3b79..9416d811 100644 --- a/pkgs/collection/lib/src/typed_wrappers.dart +++ b/pkgs/collection/lib/src/typed_wrappers.dart @@ -226,7 +226,7 @@ class TypeSafeSet extends TypeSafeIterable implements DelegatingSet { bool containsAll(Iterable other) => _setBase.containsAll(other); - Set difference(Set other) => + Set difference(Set other) => new TypeSafeSet(_setBase.difference(other)); Set intersection(Set other) => diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index 752987b1..92760f60 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -253,7 +253,7 @@ class DelegatingSet extends DelegatingIterable implements Set { bool containsAll(Iterable other) => _setBase.containsAll(other); - Set difference(Set other) => _setBase.difference(other); + Set difference(Set other) => _setBase.difference(other); Set intersection(Set other) => _setBase.intersection(other); @@ -436,7 +436,7 @@ class MapKeySet extends _DelegatingIterableBase /// /// Note that the returned set will use the default equality operation, which /// may be different than the equality operation [this] uses. - Set difference(Set other) => + Set difference(Set other) => where((element) => !other.contains(element)).toSet(); /// Returns a new set which is the intersection between [this] and [other]. @@ -537,7 +537,7 @@ class MapValueSet extends _DelegatingIterableBase implements Set { /// /// Note that the returned set will use the default equality operation, which /// may be different than the equality operation [this] uses. - Set difference(Set other) => + Set difference(Set other) => where((element) => !other.contains(element)).toSet(); /// Returns a new set which is the intersection between [this] and [other]. diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index eb9a3a26..f78a75a7 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,9 +1,9 @@ name: collection -version: 1.9.1 +version: 1.10.0 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection environment: - sdk: '>=1.12.0 <2.0.0' + sdk: '>=1.21.0 <2.0.0' dev_dependencies: test: '^0.12.0' From bc7cc37ee7239ff1ce04b8d9b63083d2c7c3c5fe Mon Sep 17 00:00:00 2001 From: Florian Loitsch Date: Thu, 20 Oct 2016 15:09:03 +0200 Subject: [PATCH 055/235] Lower dependency on dev.1 so that we can already start testing. Review URL: https://codereview.chromium.org//2439633003 . --- pkgs/collection/pubspec.yaml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index f78a75a7..f92b73d0 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,9 +1,9 @@ name: collection -version: 1.10.0 +version: 1.10.1 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection environment: - sdk: '>=1.21.0 <2.0.0' + sdk: '>=1.21.0-dev.1.0 <2.0.0' dev_dependencies: test: '^0.12.0' From 054ac3fa6bfa3aadf362bf61061b6a302a38b8af Mon Sep 17 00:00:00 2001 From: Vijay Menon Date: Mon, 31 Oct 2016 05:04:25 -0700 Subject: [PATCH 056/235] Fix changelog version to match pubspec R=floitsch@google.com Review URL: https://codereview.chromium.org//2463773002 . --- pkgs/collection/CHANGELOG.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 2edb5e60..74710a3d 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,4 +1,4 @@ -## 1.9.2 +## 1.10.1 * `Set.difference` now takes a `Set` as argument. From 9d3e0e15823e448a6c05435bfa036f33181a8998 Mon Sep 17 00:00:00 2001 From: Natalie Weizenbaum Date: Tue, 1 Nov 2016 14:16:56 -0700 Subject: [PATCH 057/235] Add EqualityMap and EqualitySet. (dart-lang/collection#35) --- pkgs/collection/CHANGELOG.md | 5 +++ pkgs/collection/lib/collection.dart | 2 + pkgs/collection/lib/src/equality_map.dart | 32 ++++++++++++++ pkgs/collection/lib/src/equality_set.dart | 32 ++++++++++++++ pkgs/collection/pubspec.yaml | 2 +- pkgs/collection/test/equality_map_test.dart | 37 ++++++++++++++++ pkgs/collection/test/equality_set_test.dart | 48 +++++++++++++++++++++ 7 files changed, 157 insertions(+), 1 deletion(-) create mode 100644 pkgs/collection/lib/src/equality_map.dart create mode 100644 pkgs/collection/lib/src/equality_set.dart create mode 100644 pkgs/collection/test/equality_map_test.dart create mode 100644 pkgs/collection/test/equality_set_test.dart diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 74710a3d..fa102206 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,8 @@ +## 1.11.0 + +* Add `EqualityMap` and `EqualitySet` classes which use `Equality` objects for + key and element equality, respectively. + ## 1.10.1 * `Set.difference` now takes a `Set` as argument. diff --git a/pkgs/collection/lib/collection.dart b/pkgs/collection/lib/collection.dart index 58d98f70..612508be 100644 --- a/pkgs/collection/lib/collection.dart +++ b/pkgs/collection/lib/collection.dart @@ -6,6 +6,8 @@ export "src/algorithms.dart"; export "src/canonicalized_map.dart"; export "src/comparators.dart"; export "src/equality.dart"; +export "src/equality_map.dart"; +export "src/equality_set.dart"; export "src/functions.dart"; export "src/iterable_zip.dart"; export "src/priority_queue.dart"; diff --git a/pkgs/collection/lib/src/equality_map.dart b/pkgs/collection/lib/src/equality_map.dart new file mode 100644 index 00000000..686e5bd9 --- /dev/null +++ b/pkgs/collection/lib/src/equality_map.dart @@ -0,0 +1,32 @@ +// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import 'dart:collection'; + +import 'equality.dart'; +import 'wrappers.dart'; + +/// A [Map] whose key equality is determined by an [Equality] object. +class EqualityMap extends DelegatingMap { + /// Creates a map with equality based on [equality]. + EqualityMap(Equality equality) + : super(new LinkedHashMap( + equals: equality.equals, + hashCode: equality.hash, + isValidKey: equality.isValidKey)); + + /// Creates a map with equality based on [equality] that contains all + /// key-value pairs of [other]. + /// + /// If [other] has multiple keys that are equivalent according to [equality], + /// the last one reached during iteration takes precedence. + EqualityMap.from(Equality equality, Map other) + : super(new LinkedHashMap( + equals: equality.equals, + hashCode: equality.hash, + isValidKey: equality.isValidKey)) { + addAll(other); + } +} + diff --git a/pkgs/collection/lib/src/equality_set.dart b/pkgs/collection/lib/src/equality_set.dart new file mode 100644 index 00000000..b0582ce6 --- /dev/null +++ b/pkgs/collection/lib/src/equality_set.dart @@ -0,0 +1,32 @@ +// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import 'dart:collection'; + +import 'equality.dart'; +import 'wrappers.dart'; + +/// A [Map] whose key equality is determined by an [Equality] object. +class EqualitySet extends DelegatingSet { + /// Creates a set with equality based on [equality]. + EqualitySet(Equality equality) + : super(new LinkedHashSet( + equals: equality.equals, + hashCode: equality.hash, + isValidKey: equality.isValidKey)); + + /// Creates a set with equality based on [equality] that contains all + /// elements in [other]. + /// + /// If [other] has multiple values that are equivalent according to + /// [equality], the first one reached during iteration takes precedence. + EqualitySet.from(Equality equality, Iterable other) + : super(new LinkedHashSet( + equals: equality.equals, + hashCode: equality.hash, + isValidKey: equality.isValidKey)) { + addAll(other); + } +} + diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index f92b73d0..13b81f26 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.10.1 +version: 1.11.0 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection diff --git a/pkgs/collection/test/equality_map_test.dart b/pkgs/collection/test/equality_map_test.dart new file mode 100644 index 00000000..8225efd7 --- /dev/null +++ b/pkgs/collection/test/equality_map_test.dart @@ -0,0 +1,37 @@ +// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import 'package:collection/collection.dart'; +import 'package:test/test.dart'; + +void main() { + test("uses the given equality", () { + var map = new EqualityMap(const IterableEquality()); + expect(map, isEmpty); + + map[[1, 2, 3]] = 1; + expect(map, containsPair([1, 2, 3], 1)); + + map[[1, 2, 3]] = 2; + expect(map, containsPair([1, 2, 3], 2)); + + map[[2, 3, 4]] = 3; + expect(map, containsPair([1, 2, 3], 2)); + expect(map, containsPair([2, 3, 4], 3)); + }); + + test("EqualityMap.from() prefers the lattermost equivalent key", () { + var map = new EqualityMap.from(const IterableEquality(), { + [1, 2, 3]: 1, + [2, 3, 4]: 2, + [1, 2, 3]: 3, + [2, 3, 4]: 4, + [1, 2, 3]: 5, + [1, 2, 3]: 6, + }); + + expect(map, containsPair([1, 2, 3], 6)); + expect(map, containsPair([2, 3, 4], 4)); + }); +} diff --git a/pkgs/collection/test/equality_set_test.dart b/pkgs/collection/test/equality_set_test.dart new file mode 100644 index 00000000..1b20684b --- /dev/null +++ b/pkgs/collection/test/equality_set_test.dart @@ -0,0 +1,48 @@ +// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import 'package:collection/collection.dart'; +import 'package:test/test.dart'; + +void main() { + test("uses the given equality", () { + var set = new EqualitySet(const IterableEquality()); + expect(set, isEmpty); + + var list1 = [1, 2, 3]; + expect(set.add(list1), isTrue); + expect(set, contains([1, 2, 3])); + expect(set, contains(same(list1))); + + var list2 = [1, 2, 3]; + expect(set.add(list2), isFalse); + expect(set, contains([1, 2, 3])); + expect(set, contains(same(list1))); + expect(set, isNot(contains(same(list2)))); + + var list3 = [2, 3, 4]; + expect(set.add(list3), isTrue); + expect(set, contains(same(list1))); + expect(set, contains(same(list3))); + }); + + test("EqualitySet.from() prefers the lattermost equivalent value", () { + var list1 = [1, 2, 3]; + var list2 = [2, 3, 4]; + var list3 = [1, 2, 3]; + var list4 = [2, 3, 4]; + var list5 = [1, 2, 3]; + var list6 = [1, 2, 3]; + + var set = new EqualitySet.from(const IterableEquality(), + [list1, list2, list3, list4, list5, list6]); + + expect(set, contains(same(list1))); + expect(set, contains(same(list2))); + expect(set, isNot(contains(same(list3)))); + expect(set, isNot(contains(same(list4)))); + expect(set, isNot(contains(same(list5)))); + expect(set, isNot(contains(same(list6)))); + }); +} From c4c4a6cf14f7021854971ef0a4db3e8fb1a67cee Mon Sep 17 00:00:00 2001 From: Natalie Weizenbaum Date: Wed, 2 Nov 2016 16:44:43 -0700 Subject: [PATCH 058/235] Add CaseInsensitiveEquality. --- pkgs/collection/CHANGELOG.md | 4 ++++ pkgs/collection/lib/src/equality.dart | 14 ++++++++++++++ pkgs/collection/pubspec.yaml | 2 +- pkgs/collection/test/equality_test.dart | 15 +++++++++++++++ 4 files changed, 34 insertions(+), 1 deletion(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index fa102206..8794fa79 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.12.0 + +* Add `CaseInsensitiveEquality`. + ## 1.11.0 * Add `EqualityMap` and `EqualitySet` classes which use `Equality` objects for diff --git a/pkgs/collection/lib/src/equality.dart b/pkgs/collection/lib/src/equality.dart index 09f10a64..39e4ad5e 100644 --- a/pkgs/collection/lib/src/equality.dart +++ b/pkgs/collection/lib/src/equality.dart @@ -382,3 +382,17 @@ class DeepCollectionEquality implements Equality { bool isValidKey(Object o) => o is Iterable || o is Map || _base.isValidKey(o); } + +/// String equality that's insensitive to differences in ASCII case. +/// +/// Non-ASCII characters are compared as-is, with no conversion. +class CaseInsensitiveEquality implements Equality { + const CaseInsensitiveEquality(); + + bool equals(String string1, String string2) => + equalsIgnoreAsciiCase(string1, string2); + + int hash(String string) => hashIgnoreAsciiCase(string); + + bool isValidKey(Object object) => object is String; +} diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 13b81f26..ad3f111c 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.11.0 +version: 1.12.0 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection diff --git a/pkgs/collection/test/equality_test.dart b/pkgs/collection/test/equality_test.dart index e6096085..7d9246d0 100644 --- a/pkgs/collection/test/equality_test.dart +++ b/pkgs/collection/test/equality_test.dart @@ -160,6 +160,21 @@ main() { expect(colleq.equals(s1, s2), isTrue); }); + + test("CaseInsensitiveEquality", () { + var equality = const CaseInsensitiveEquality(); + expect(equality.equals("foo", "foo"), isTrue); + expect(equality.equals("fOo", "FoO"), isTrue); + expect(equality.equals("FoO", "fOo"), isTrue); + expect(equality.equals("foo", "bar"), isFalse); + expect(equality.equals("fÕÕ", "fõõ"), isFalse); + + expect(equality.hash("foo"), equals(equality.hash("foo"))); + expect(equality.hash("fOo"), equals(equality.hash("FoO"))); + expect(equality.hash("FoO"), equals(equality.hash("fOo"))); + expect(equality.hash("foo"), isNot(equals(equality.hash("bar")))); + expect(equality.hash("fÕÕ"), isNot(equals(equality.hash("fõõ")))); + }); } /// Wrapper objects for an `id` value. From 1774da0bf42d8541ef6d592ea27c3ecd7e92c58e Mon Sep 17 00:00:00 2001 From: Lasse Reichstein Holst Nielsen Date: Mon, 14 Nov 2016 11:25:20 +0100 Subject: [PATCH 059/235] Fix bug in equalsIgnoreAsciiCase. Add tests. R=floitsch@google.com, nweiz@google.com Review URL: https://codereview.chromium.org//2484163002 . --- pkgs/collection/CHANGELOG.md | 4 ++ pkgs/collection/lib/src/comparators.dart | 4 +- pkgs/collection/lib/src/equality.dart | 2 + pkgs/collection/pubspec.yaml | 2 +- .../test/ignore_ascii_case_test.dart | 58 +++++++++++++++++++ 5 files changed, 67 insertions(+), 3 deletions(-) create mode 100644 pkgs/collection/test/ignore_ascii_case_test.dart diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 8794fa79..2c398b6d 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.12.1 + +* Fix bug in `equalsIgnoreAsciiCase`. + ## 1.12.0 * Add `CaseInsensitiveEquality`. diff --git a/pkgs/collection/lib/src/comparators.dart b/pkgs/collection/lib/src/comparators.dart index ca2b3c77..b0824a82 100644 --- a/pkgs/collection/lib/src/comparators.dart +++ b/pkgs/collection/lib/src/comparators.dart @@ -34,8 +34,8 @@ bool equalsIgnoreAsciiCase(String a, String b) { if (aChar ^ bChar != _asciiCaseBit) return false; // If it's possible, then check if either character is actually an ASCII // letter. - int aCharUpperCase = aChar | _asciiCaseBit; - if (_upperCaseA <= aCharUpperCase && aCharUpperCase <= _upperCaseZ) { + int aCharLowerCase = aChar | _asciiCaseBit; + if (_lowerCaseA <= aCharLowerCase && aCharLowerCase <= _lowerCaseZ) { continue; } return false; diff --git a/pkgs/collection/lib/src/equality.dart b/pkgs/collection/lib/src/equality.dart index 39e4ad5e..a9012973 100644 --- a/pkgs/collection/lib/src/equality.dart +++ b/pkgs/collection/lib/src/equality.dart @@ -4,6 +4,8 @@ import "dart:collection"; +import "comparators.dart"; + const int _HASH_MASK = 0x7fffffff; /// A generic equality relation on objects. diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index ad3f111c..36e30549 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.12.0 +version: 1.12.1 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection diff --git a/pkgs/collection/test/ignore_ascii_case_test.dart b/pkgs/collection/test/ignore_ascii_case_test.dart new file mode 100644 index 00000000..787f76fd --- /dev/null +++ b/pkgs/collection/test/ignore_ascii_case_test.dart @@ -0,0 +1,58 @@ +// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +/// Tests case-ignoring compare and equality. + +import "package:collection/collection.dart"; +import "package:test/test.dart"; + +main() { + test("equality ignore ASCII case", () { + var strings = [ + "0@`aopz[{", + "0@`aopz[{", + "0@`Aopz[{", + "0@`aOpz[{", + "0@`AOpz[{", + "0@`aoPz[{", + "0@`AoPz[{", + "0@`aOPz[{", + "0@`AOPz[{", + "0@`aopZ[{", + "0@`AopZ[{", + "0@`aOpZ[{", + "0@`AOpZ[{", + "0@`aoPZ[{", + "0@`AoPZ[{", + "0@`aOPZ[{", + "0@`AOPZ[{", + ]; + + for (var s1 in strings) { + for (var s2 in strings) { + var reason = "$s1 =?= $s2"; + expect(equalsIgnoreAsciiCase(s1, s2), true, reason: reason); + expect(hashIgnoreAsciiCase(s1), hashIgnoreAsciiCase(s2), + reason: reason); + } + } + + var upperCaseLetters = "@`abcdefghijklmnopqrstuvwxyz[{åÅ"; + var lowerCaseLetters = "@`ABCDEFGHIJKLMNOPQRSTUVWXYZ[{åÅ"; + expect(equalsIgnoreAsciiCase(upperCaseLetters, lowerCaseLetters), true); + + testChars(char1, char2, areEqual) { + expect(equalsIgnoreAsciiCase(char1, char2), areEqual, + reason: "$char1 ${areEqual ? "=" : "!"}= $char2"); + } + for (int i = 0; i < upperCaseLetters.length; i++) { + for (int j = 0; i < upperCaseLetters.length; i++) { + testChars(upperCaseLetters[i], upperCaseLetters[j], i == j); + testChars(lowerCaseLetters[i], upperCaseLetters[j], i == j); + testChars(upperCaseLetters[i], lowerCaseLetters[j], i == j); + testChars(lowerCaseLetters[i], lowerCaseLetters[j], i == j); + } + } + }); +} \ No newline at end of file From b92ae270f2261d92ca1a96f4dc9ed3a849ef1afa Mon Sep 17 00:00:00 2001 From: Natalie Weizenbaum Date: Mon, 14 Nov 2016 14:33:11 -0800 Subject: [PATCH 060/235] Release 1.12.0. --- pkgs/collection/CHANGELOG.md | 6 ++---- pkgs/collection/pubspec.yaml | 2 +- 2 files changed, 3 insertions(+), 5 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 2c398b6d..2b05ddc0 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,11 +1,9 @@ -## 1.12.1 - -* Fix bug in `equalsIgnoreAsciiCase`. - ## 1.12.0 * Add `CaseInsensitiveEquality`. +* Fix bug in `equalsIgnoreAsciiCase`. + ## 1.11.0 * Add `EqualityMap` and `EqualitySet` classes which use `Equality` objects for diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 36e30549..ad3f111c 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.12.1 +version: 1.12.0 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection From d9ea1ce93359e62f35783baa4d6959789e77ab39 Mon Sep 17 00:00:00 2001 From: Matan Lurey Date: Mon, 14 Nov 2016 16:54:54 -0800 Subject: [PATCH 061/235] Resolve some strong-mode warnings encountered in IntelliJ --- pkgs/collection/test/canonicalized_map_test.dart | 2 +- pkgs/collection/test/comparators_test.dart | 2 +- pkgs/collection/test/priority_queue_test.dart | 2 +- pkgs/collection/test/queue_list_test.dart | 2 +- pkgs/collection/test/typed_wrapper/set_test.dart | 2 -- pkgs/collection/test/union_set_test.dart | 4 ++-- pkgs/collection/test/wrapper_test.dart | 2 +- 7 files changed, 7 insertions(+), 9 deletions(-) diff --git a/pkgs/collection/test/canonicalized_map_test.dart b/pkgs/collection/test/canonicalized_map_test.dart index 33e663f3..19e6a48d 100644 --- a/pkgs/collection/test/canonicalized_map_test.dart +++ b/pkgs/collection/test/canonicalized_map_test.dart @@ -10,7 +10,7 @@ void main() { var map; setUp(() { map = new CanonicalizedMap(int.parse, - isValidKey: new RegExp(r"^\d+$").hasMatch); + isValidKey: (s) => new RegExp(r"^\d+$").hasMatch(s)); }); test("canonicalizes keys on set and get", () { diff --git a/pkgs/collection/test/comparators_test.dart b/pkgs/collection/test/comparators_test.dart index 4acdc2c1..169c688c 100644 --- a/pkgs/collection/test/comparators_test.dart +++ b/pkgs/collection/test/comparators_test.dart @@ -85,7 +85,7 @@ void main() { // This will sort alphabetically (by charcode) the way digits sort // numerically, and the leading 0 means it sorts like a digit // compared to non-digits. - replaceNumbers(string) => string.replaceAllMapped(new RegExp(r"\d+"), (m) { + replaceNumbers(String string) => string.replaceAllMapped(new RegExp(r"\d+"), (m) { var digits = m[0]; return new String.fromCharCodes([0x30, int.parse(digits), digits.length]); }); diff --git a/pkgs/collection/test/priority_queue_test.dart b/pkgs/collection/test/priority_queue_test.dart index 1aabcc10..3131b15e 100644 --- a/pkgs/collection/test/priority_queue_test.dart +++ b/pkgs/collection/test/priority_queue_test.dart @@ -165,7 +165,7 @@ void testQueueBody(PriorityQueue create(), List elements, notElement) { int compare(C c1, C c2) => c1.value - c2.value; int compareNeg(C c1, C c2) => c2.value - c1.value; -class C implements Comparable { +class C implements Comparable { final int value; const C(this.value); int get hashCode => value; diff --git a/pkgs/collection/test/queue_list_test.dart b/pkgs/collection/test/queue_list_test.dart index cbe518f5..deee459d 100644 --- a/pkgs/collection/test/queue_list_test.dart +++ b/pkgs/collection/test/queue_list_test.dart @@ -176,7 +176,7 @@ void main() { group("[]=", () { test("sets individual entries in the queue", () { - var queue = new QueueList.from([1, 2, 3]); + var queue = new QueueList.from([1, 2, 3]); queue[0] = "a"; queue[1] = "b"; queue[2] = "c"; diff --git a/pkgs/collection/test/typed_wrapper/set_test.dart b/pkgs/collection/test/typed_wrapper/set_test.dart index c3f84bcb..031bb4c5 100644 --- a/pkgs/collection/test/typed_wrapper/set_test.dart +++ b/pkgs/collection/test/typed_wrapper/set_test.dart @@ -10,11 +10,9 @@ import '../utils.dart'; void main() { group("with valid types, forwards", () { var wrapper; - var emptyWrapper; setUp(() { wrapper = DelegatingSet.typed/**/( new Set.from([1, 2, 3, 4, 5])); - emptyWrapper = DelegatingSet.typed/**/(new Set()); }); test("add()", () { diff --git a/pkgs/collection/test/union_set_test.dart b/pkgs/collection/test/union_set_test.dart index 15d9d496..8bce470b 100644 --- a/pkgs/collection/test/union_set_test.dart +++ b/pkgs/collection/test/union_set_test.dart @@ -134,7 +134,7 @@ void main() { group("after an inner set was modified", () { var set; setUp(() { - var innerSet = new Set.from([3, 7]); + var innerSet = new Set.from([3, 7]); set = new UnionSet.from([ new Set.from([1, 2]), new Set.from([5]), @@ -179,7 +179,7 @@ void main() { var set; setUp(() { var innerSet = new Set.from([6]); - var outerSet = new Set.from([ + var outerSet = new Set>.from([ new Set.from([1, 2]), new Set.from([5]), innerSet diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index 035783e9..e4889455 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -56,7 +56,7 @@ class SyntheticInvocation implements Invocation { static const int SETTER = 0x02; final Symbol memberName; final List positionalArguments; - final Map namedArguments; + final Map namedArguments; final int _type; const SyntheticInvocation(this.memberName, this.positionalArguments, From 3039ffe283211e345a85b3f01704980ec649c90d Mon Sep 17 00:00:00 2001 From: Matan Lurey Date: Mon, 19 Dec 2016 14:28:55 -0800 Subject: [PATCH 062/235] Add EqualityBy (dart-lang/collection#40) Closes dart-lang/collection#38 --- pkgs/collection/CHANGELOG.md | 4 +++ pkgs/collection/lib/src/equality.dart | 42 ++++++++++++++++++++++ pkgs/collection/pubspec.yaml | 2 +- pkgs/collection/test/equality_test.dart | 46 +++++++++++++++++++++++++ 4 files changed, 93 insertions(+), 1 deletion(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 2b05ddc0..7cca9568 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.13.0 + +* Add `EqualityBy` + ## 1.12.0 * Add `CaseInsensitiveEquality`. diff --git a/pkgs/collection/lib/src/equality.dart b/pkgs/collection/lib/src/equality.dart index a9012973..3b10176e 100644 --- a/pkgs/collection/lib/src/equality.dart +++ b/pkgs/collection/lib/src/equality.dart @@ -30,6 +30,48 @@ abstract class Equality { bool isValidKey(Object o); } +typedef F _GetKey(E object); + +/// Equality of objects based on derived values. +/// +/// For example, given the class: +/// ```dart +/// abstract class Employee { +/// int get employmentId; +/// } +/// ``` +/// +/// The following [Equality] considers employees with the same IDs to be equal: +/// ```dart +/// new EqualityBy((Employee e) => e.employmentId); +/// ``` +/// +/// It's also possible to pass an additional equality instance that should be +/// used to compare the value itself. +class EqualityBy implements Equality { + // Returns a derived value F from an object E. + final _GetKey _getKey; + + // Determines equality between two values of F. + final Equality _inner; + + EqualityBy(F getKey(E object), [Equality inner = const DefaultEquality()]) + : _getKey = getKey, + _inner = inner; + + bool equals(E e1, E e2) => _inner.equals(_getKey(e1), _getKey(e2)); + + int hash(E e) => _inner.hash(_getKey(e)); + + bool isValidKey(Object o) { + if (o is E) { + final value = _getKey(o); + return value is F && _inner.isValidKey(value); + } + return false; + } +} + /// Equality of objects that compares only the natural equality of the objects. /// /// This equality uses the objects' own [Object.==] and [Object.hashCode] for diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index ad3f111c..587f9f0f 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.12.0 +version: 1.13.0 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection diff --git a/pkgs/collection/test/equality_test.dart b/pkgs/collection/test/equality_test.dart index 7d9246d0..53523464 100644 --- a/pkgs/collection/test/equality_test.dart +++ b/pkgs/collection/test/equality_test.dart @@ -175,6 +175,52 @@ main() { expect(equality.hash("foo"), isNot(equals(equality.hash("bar")))); expect(equality.hash("fÕÕ"), isNot(equals(equality.hash("fõõ")))); }); + + group("EqualityBy should use a derived value for ", () { + var firstEquality = new EqualityBy, String>( + (e) => e.first); + var firstInsensitiveEquality = new EqualityBy, String>( + (e) => e.first, const CaseInsensitiveEquality()); + var firstObjectEquality = new EqualityBy, Object>( + (e) => e.first, const IterableEquality()); + + test("equality", () { + expect( + firstEquality.equals( + ["foo", "foo"], ["foo", "bar"]), + isTrue); + expect( + firstEquality.equals( + ["foo", "foo"], ["bar", "bar"]), + isFalse); + }); + + test("equality with an inner equality", () { + expect(firstInsensitiveEquality.equals(["fOo"], ["FoO"]), isTrue); + expect(firstInsensitiveEquality.equals(["foo"], ["ffõõ"]), isFalse); + }); + + test("hash", () { + expect(firstEquality.hash(["foo", "bar"]), "foo".hashCode); + }); + + test("hash with an inner equality", () { + expect( + firstInsensitiveEquality.hash(["fOo"]), + const CaseInsensitiveEquality().hash("foo")); + }); + + test("isValidKey", () { + expect(firstEquality.isValidKey(["foo"]), isTrue); + expect(firstEquality.isValidKey("foo"), isFalse); + expect(firstEquality.isValidKey([1]), isFalse); + }); + + test('isValidKey with an inner equality', () { + expect(firstObjectEquality.isValidKey([[]]), isTrue); + expect(firstObjectEquality.isValidKey([{}]), isFalse); + }); + }); } /// Wrapper objects for an `id` value. From f1f095e2f637574cf5181e1e162f8c2e88eaef88 Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Tue, 24 Jan 2017 13:02:20 -0800 Subject: [PATCH 063/235] use pkg/test config for test bots --- pkgs/collection/.status | 12 ------------ pkgs/collection/.test_config | 3 +++ 2 files changed, 3 insertions(+), 12 deletions(-) delete mode 100644 pkgs/collection/.status create mode 100644 pkgs/collection/.test_config diff --git a/pkgs/collection/.status b/pkgs/collection/.status deleted file mode 100644 index ebc5f813..00000000 --- a/pkgs/collection/.status +++ /dev/null @@ -1,12 +0,0 @@ -# Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file -# for details. All rights reserved. Use of this source code is governed by a -# BSD-style license that can be found in the LICENSE file. - -# Skip non-test files ending with "_test". -packages/*: Skip -*/packages/*: Skip -*/*/packages/*: Skip -*/*/*/packages/*: Skip -*/*/*/*packages/*: Skip -*/*/*/*/*packages/*: Skip - diff --git a/pkgs/collection/.test_config b/pkgs/collection/.test_config new file mode 100644 index 00000000..412fc5c5 --- /dev/null +++ b/pkgs/collection/.test_config @@ -0,0 +1,3 @@ +{ + "test_package": true +} \ No newline at end of file From d071b98aff1c1d7f5305172d26991bdb273e90f5 Mon Sep 17 00:00:00 2001 From: Matan Lurey Date: Tue, 24 Jan 2017 13:29:16 -0800 Subject: [PATCH 064/235] Remove strong-mode and deprecation warnings (dart-lang/collection#49) --- pkgs/collection/test/algorithms_test.dart | 4 +-- pkgs/collection/test/equality_test.dart | 6 ++-- pkgs/collection/test/functions_test.dart | 16 +++++------ .../test/typed_wrapper/iterable_test.dart | 28 +++++++++---------- .../test/typed_wrapper/list_test.dart | 6 ++-- .../test/typed_wrapper/map_test.dart | 8 +++--- .../test/typed_wrapper/queue_test.dart | 4 +-- .../test/typed_wrapper/set_test.dart | 4 +-- pkgs/collection/test/union_set_test.dart | 2 +- 9 files changed, 39 insertions(+), 39 deletions(-) diff --git a/pkgs/collection/test/algorithms_test.dart b/pkgs/collection/test/algorithms_test.dart index a6391060..6e6f6309 100644 --- a/pkgs/collection/test/algorithms_test.dart +++ b/pkgs/collection/test/algorithms_test.dart @@ -78,7 +78,7 @@ void main() { }); test("binsearchCompare0", () { - expect(binarySearch([], new C(2), compare: compareC), equals(-1)); + expect(binarySearch([], new C(2), compare: compareC), equals(-1)); }); test("binsearchCompare1", () { @@ -125,7 +125,7 @@ void main() { }); test("lowerboundCompare0", () { - expect(lowerBound([], new C(2), compare: compareC), equals(0)); + expect(lowerBound([], new C(2), compare: compareC), equals(0)); }); test("lowerboundCompare1", () { diff --git a/pkgs/collection/test/equality_test.dart b/pkgs/collection/test/equality_test.dart index 53523464..bdf87111 100644 --- a/pkgs/collection/test/equality_test.dart +++ b/pkgs/collection/test/equality_test.dart @@ -114,8 +114,8 @@ main() { var map2b = {"x": [o(6), o(5), o(4)], "y": [null, false, true]}; var l1 = [map1a, map1b]; var l2 = [map2a, map2b]; - var s1 = new Set.from(l1); - var s2 = new Set.from([map2b, map2a]); + var s1 = new Set.from(l1); + var s2 = new Set.from([map2b, map2a]); test("RecursiveEquality", () { const unordered = const UnorderedIterableEquality(); @@ -136,7 +136,7 @@ main() { const listmapval = const ListEquality(mapval); expect(listmapval.equals(l1, l2), isTrue); - const setmapval = const SetEquality(mapval); + const setmapval = const SetEquality(mapval); expect(setmapval.equals(s1, s2), isTrue); }); diff --git a/pkgs/collection/test/functions_test.dart b/pkgs/collection/test/functions_test.dart index ab56c3be..8eeba0a6 100644 --- a/pkgs/collection/test/functions_test.dart +++ b/pkgs/collection/test/functions_test.dart @@ -11,8 +11,8 @@ void main() { test("with an empty map returns an empty map", () { expect( mapMap({}, - key: expectAsync((_, __) {}, count: 0), - value: expectAsync((_, __) {}, count: 0)), + key: expectAsync2((_, __) {}, count: 0), + value: expectAsync2((_, __) {}, count: 0)), isEmpty); }); @@ -47,7 +47,7 @@ void main() { group("mergeMaps()", () { test("with empty maps returns an empty map", () { - expect(mergeMaps({}, {}, value: expectAsync((_, __) {}, count: 0)), + expect(mergeMaps({}, {}, value: expectAsync2((_, __) {}, count: 0)), isEmpty); }); @@ -70,7 +70,7 @@ void main() { group("groupBy()", () { test("returns an empty map for an empty iterable", () { - expect(groupBy([], expectAsync((_) {}, count: 0)), isEmpty); + expect(groupBy([], expectAsync1((_) {}, count: 0)), isEmpty); }); test("groups elements by the function's return value", () { @@ -83,8 +83,8 @@ void main() { group("minBy()", () { test("returns null for an empty iterable", () { expect( - minBy([], expectAsync((_) {}, count: 0), - compare: expectAsync((_, __) {}, count: 0)), + minBy([], expectAsync1((_) {}, count: 0), + compare: expectAsync2((_, __) {}, count: 0)), isNull); }); @@ -110,8 +110,8 @@ void main() { group("maxBy()", () { test("returns null for an empty iterable", () { expect( - maxBy([], expectAsync((_) {}, count: 0), - compare: expectAsync((_, __) {}, count: 0)), + maxBy([], expectAsync1((_) {}, count: 0), + compare: expectAsync2((_, __) {}, count: 0)), isNull); }); diff --git a/pkgs/collection/test/typed_wrapper/iterable_test.dart b/pkgs/collection/test/typed_wrapper/iterable_test.dart index 3614ba45..ff044da9 100644 --- a/pkgs/collection/test/typed_wrapper/iterable_test.dart +++ b/pkgs/collection/test/typed_wrapper/iterable_test.dart @@ -72,7 +72,7 @@ void main() { wrapper.forEach(results.add); expect(results, equals([1, 2, 3, 4, 5])); - emptyWrapper.forEach(expectAsync((_) {}, count: 0)); + emptyWrapper.forEach(expectAsync1((_) {}, count: 0)); }); test("isEmpty", () { @@ -204,7 +204,7 @@ void main() { group("throws a CastError for", () { test("any()", () { - expect(() => wrapper.any(expectAsync((_) => false, count: 0)), + expect(() => wrapper.any(expectAsync1((_) => false, count: 0)), throwsCastError); }); @@ -213,12 +213,12 @@ void main() { }); test("every()", () { - expect(() => wrapper.every(expectAsync((_) => false, count: 0)), + expect(() => wrapper.every(expectAsync1((_) => false, count: 0)), throwsCastError); }); test("expand()", () { - var lazy = wrapper.expand(expectAsync((_) => [], count: 0)); + var lazy = wrapper.expand(expectAsync1((_) => [], count: 0)); expect(() => lazy.first, throwsCastError); }); @@ -227,17 +227,17 @@ void main() { }); test("firstWhere()", () { - expect(() => wrapper.firstWhere(expectAsync((_) => false, count: 0)), + expect(() => wrapper.firstWhere(expectAsync1((_) => false, count: 0)), throwsCastError); }); test("fold()", () { - expect(() => wrapper.fold(null, expectAsync((_, __) => null, count: 0)), + expect(() => wrapper.fold(null, expectAsync2((_, __) => null, count: 0)), throwsCastError); }); test("forEach()", () { - expect(() => wrapper.forEach(expectAsync((_) {}, count: 0)), + expect(() => wrapper.forEach(expectAsync1((_) {}, count: 0)), throwsCastError); }); @@ -252,17 +252,17 @@ void main() { }); test("lastWhere()", () { - expect(() => wrapper.lastWhere(expectAsync((_) => false, count: 0)), + expect(() => wrapper.lastWhere(expectAsync1((_) => false, count: 0)), throwsCastError); }); test("map()", () { - var lazy = wrapper.map(expectAsync((_) => null, count: 0)); + var lazy = wrapper.map(expectAsync1((_) => null, count: 0)); expect(() => lazy.first, throwsCastError); }); test("reduce()", () { - expect(() => wrapper.reduce(expectAsync((_, __) => null, count: 0)), + expect(() => wrapper.reduce(expectAsync2((_, __) => null, count: 0)), throwsCastError); }); @@ -272,7 +272,7 @@ void main() { test("singleWhere()", () { expect(() { - singleWrapper.singleWhere(expectAsync((_) => false, count: 0)); + singleWrapper.singleWhere(expectAsync1((_) => false, count: 0)); }, throwsCastError); }); @@ -282,7 +282,7 @@ void main() { }); test("skipWhile()", () { - var lazy = wrapper.skipWhile(expectAsync((_) => false, count: 0)); + var lazy = wrapper.skipWhile(expectAsync1((_) => false, count: 0)); expect(() => lazy.first, throwsCastError); }); @@ -292,7 +292,7 @@ void main() { }); test("takeWhile()", () { - var lazy = wrapper.takeWhile(expectAsync((_) => false, count: 0)); + var lazy = wrapper.takeWhile(expectAsync1((_) => false, count: 0)); expect(() => lazy.first, throwsCastError); }); @@ -307,7 +307,7 @@ void main() { }); test("where()", () { - var lazy = wrapper.where(expectAsync((_) => false, count: 0)); + var lazy = wrapper.where(expectAsync1((_) => false, count: 0)); expect(() => lazy.first, throwsCastError); }); }); diff --git a/pkgs/collection/test/typed_wrapper/list_test.dart b/pkgs/collection/test/typed_wrapper/list_test.dart index 5dd81ca0..57572d7d 100644 --- a/pkgs/collection/test/typed_wrapper/list_test.dart +++ b/pkgs/collection/test/typed_wrapper/list_test.dart @@ -253,12 +253,12 @@ void main() { }); test("removeWhere()", () { - expect(() => wrapper.removeWhere(expectAsync((_) => false, count: 0)), + expect(() => wrapper.removeWhere(expectAsync1((_) => false, count: 0)), throwsCastError); }); test("retainWhere()", () { - expect(() => wrapper.retainWhere(expectAsync((_) => false, count: 0)), + expect(() => wrapper.retainWhere(expectAsync1((_) => false, count: 0)), throwsCastError); }); @@ -268,7 +268,7 @@ void main() { }); test("sort()", () { - expect(() => wrapper.sort(expectAsync((_, __) => 0, count: 0)), + expect(() => wrapper.sort(expectAsync2((_, __) => 0, count: 0)), throwsCastError); }); diff --git a/pkgs/collection/test/typed_wrapper/map_test.dart b/pkgs/collection/test/typed_wrapper/map_test.dart index 3546ae8f..30c64263 100644 --- a/pkgs/collection/test/typed_wrapper/map_test.dart +++ b/pkgs/collection/test/typed_wrapper/map_test.dart @@ -62,7 +62,7 @@ void main() { expect(results, unorderedEquals([["foo", 1], ["bar", 2], ["baz", 3], ["bang", 4]])); - emptyWrapper.forEach(expectAsync((_, __) {}, count: 0)); + emptyWrapper.forEach(expectAsync2((_, __) {}, count: 0)); }); test("isEmpty", () { @@ -86,7 +86,7 @@ void main() { }); test("putIfAbsent()", () { - expect(wrapper.putIfAbsent("foo", expectAsync(() => null, count: 0)), + expect(wrapper.putIfAbsent("foo", expectAsync1((_) => null, count: 0)), equals(1)); expect(wrapper.putIfAbsent("qux", () => 6), equals(6)); @@ -129,7 +129,7 @@ void main() { group("throws a CastError for", () { test("forEach()", () { - expect(() => wrapper.forEach(expectAsync((_, __) {}, count: 0)), + expect(() => wrapper.forEach(expectAsync2((_, __) {}, count: 0)), throwsCastError); }); @@ -225,7 +225,7 @@ void main() { group("throws a CastError for", () { test("forEach()", () { - expect(() => wrapper.forEach(expectAsync((_, __) {}, count: 0)), + expect(() => wrapper.forEach(expectAsync2((_, __) {}, count: 0)), throwsCastError); }); diff --git a/pkgs/collection/test/typed_wrapper/queue_test.dart b/pkgs/collection/test/typed_wrapper/queue_test.dart index dc93321b..4eb68b36 100644 --- a/pkgs/collection/test/typed_wrapper/queue_test.dart +++ b/pkgs/collection/test/typed_wrapper/queue_test.dart @@ -98,12 +98,12 @@ void main() { }); test("removeWhere()", () { - expect(() => wrapper.removeWhere(expectAsync((_) => false, count: 0)), + expect(() => wrapper.removeWhere(expectAsync1((_) => false, count: 0)), throwsCastError); }); test("retainWhere()", () { - expect(() => wrapper.retainWhere(expectAsync((_) => false, count: 0)), + expect(() => wrapper.retainWhere(expectAsync1((_) => false, count: 0)), throwsCastError); }); }); diff --git a/pkgs/collection/test/typed_wrapper/set_test.dart b/pkgs/collection/test/typed_wrapper/set_test.dart index 031bb4c5..7667442a 100644 --- a/pkgs/collection/test/typed_wrapper/set_test.dart +++ b/pkgs/collection/test/typed_wrapper/set_test.dart @@ -111,12 +111,12 @@ void main() { }); test("removeWhere()", () { - expect(() => wrapper.removeWhere(expectAsync((_) => false, count: 0)), + expect(() => wrapper.removeWhere(expectAsync1((_) => false, count: 0)), throwsCastError); }); test("retainWhere()", () { - expect(() => wrapper.retainWhere(expectAsync((_) => false, count: 0)), + expect(() => wrapper.retainWhere(expectAsync1((_) => false, count: 0)), throwsCastError); }); diff --git a/pkgs/collection/test/union_set_test.dart b/pkgs/collection/test/union_set_test.dart index 8bce470b..f2a792ac 100644 --- a/pkgs/collection/test/union_set_test.dart +++ b/pkgs/collection/test/union_set_test.dart @@ -35,7 +35,7 @@ void main() { }); test("map() doesn't run on any elements", () { - expect(set.map(expectAsync((_) {}, count: 0)), isEmpty); + expect(set.map(expectAsync1((_) {}, count: 0)), isEmpty); }); }); From be91e4b0662e207502bfe54fad15b3fe272b2271 Mon Sep 17 00:00:00 2001 From: Matan Lurey Date: Wed, 15 Feb 2017 13:57:43 -0800 Subject: [PATCH 065/235] Add CombinedListView (dart-lang/collection#50) --- pkgs/collection/CHANGELOG.md | 4 ++ pkgs/collection/lib/collection.dart | 1 + .../src/combined_wrappers/combined_list.dart | 66 ++++++++++++++++++ pkgs/collection/pubspec.yaml | 2 +- .../test/combined_list_view_test.dart | 69 +++++++++++++++++++ 5 files changed, 141 insertions(+), 1 deletion(-) create mode 100644 pkgs/collection/lib/src/combined_wrappers/combined_list.dart create mode 100644 pkgs/collection/test/combined_list_view_test.dart diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 7cca9568..97792cd5 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.14.0 + +* Add `CombinedListView`, a view of several lists concatenated together. + ## 1.13.0 * Add `EqualityBy` diff --git a/pkgs/collection/lib/collection.dart b/pkgs/collection/lib/collection.dart index 612508be..2ea73a7c 100644 --- a/pkgs/collection/lib/collection.dart +++ b/pkgs/collection/lib/collection.dart @@ -4,6 +4,7 @@ export "src/algorithms.dart"; export "src/canonicalized_map.dart"; +export "src/combined_wrappers/combined_list.dart"; export "src/comparators.dart"; export "src/equality.dart"; export "src/equality_map.dart"; diff --git a/pkgs/collection/lib/src/combined_wrappers/combined_list.dart b/pkgs/collection/lib/src/combined_wrappers/combined_list.dart new file mode 100644 index 00000000..d2e03499 --- /dev/null +++ b/pkgs/collection/lib/src/combined_wrappers/combined_list.dart @@ -0,0 +1,66 @@ +// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import 'dart:collection'; + +/// A view of several lists combined into a single list. +/// +/// All methods and accessors treat the [CombinedListView] list as if it were a +/// single concatenated list, but the underlying implementation is based on +/// lazily accessing individual list instances. This means that if the +/// underlying lists change, the [CombinedListView] will reflect those changes. +/// +/// The index operator (`[]`) and [length] property of a [CombinedListView] are +/// both `O(lists)` rather than `O(1)`. A [CombinedListView] is unmodifiable. +class CombinedListView extends ListBase + implements UnmodifiableListView { + static void _throw() { + throw new UnsupportedError('Cannot modify an unmodifiable List'); + } + + /// The lists that this combines. + final List> _lists; + + /// Creates a combined view of [lists]. + CombinedListView(this._lists); + + set length(int length) { + _throw(); + } + + int get length => _lists.fold(0, (length, list) => length + list.length); + + T operator [](int index) { + var initialIndex = index; + for (var i = 0; i < _lists.length; i++) { + var list = _lists[i]; + if (index < list.length) { + return list[index]; + } + index -= list.length; + } + throw new RangeError.index(initialIndex, this, 'index', null, length); + } + + void operator []=(int index, T value) { + _throw(); + } + + void clear() { + _throw(); + } + + bool remove(Object element) { + _throw(); + return null; + } + + void removeWhere(bool filter(T element)) { + _throw(); + } + + void retainWhere(bool filter(T element)) { + _throw(); + } +} diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 587f9f0f..50601125 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.13.0 +version: 1.14.0-dev author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection diff --git a/pkgs/collection/test/combined_list_view_test.dart b/pkgs/collection/test/combined_list_view_test.dart new file mode 100644 index 00000000..d61e51ad --- /dev/null +++ b/pkgs/collection/test/combined_list_view_test.dart @@ -0,0 +1,69 @@ +// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import 'package:collection/collection.dart'; +import 'package:test/test.dart'; + +import 'unmodifiable_collection_test.dart' as common; + +void main() { + var list1 = [1, 2, 3]; + var list2 = [4, 5, 6]; + var list3 = [7, 8, 9]; + var concat = []..addAll(list1)..addAll(list2)..addAll(list3); + + // In every way possible this should test the same as an UnmodifiableListView. + common.testUnmodifiableList(concat, new CombinedListView( + [list1, list2, list3] + ), 'combineLists'); + + common.testUnmodifiableList(concat, new CombinedListView( + [list1, [], list2, [], list3, []] + ), 'combineLists'); + + test('should function as an empty list when no lists are passed', () { + var empty = new CombinedListView([]); + expect(empty, isEmpty); + expect(empty.length, 0); + expect(() => empty[0], throwsRangeError); + }); + + test('should function as an empty list when only empty lists are passed', () { + var empty = new CombinedListView([[], [], []]); + expect(empty, isEmpty); + expect(empty.length, 0); + expect(() => empty[0], throwsRangeError); + }); + + test('should reflect underlying changes back to the combined list', () { + var backing1 = []; + var backing2 = []; + var combined = new CombinedListView([backing1, backing2]); + expect(combined, isEmpty); + backing1.addAll(list1); + expect(combined, list1); + backing2.addAll(list2); + expect(combined, backing1.toList()..addAll(backing2)); + }); + + test('should reflect underlying changes from the list of lists', () { + var listOfLists = >[]; + var combined = new CombinedListView(listOfLists); + expect(combined, isEmpty); + listOfLists.add(list1); + expect(combined, list1); + listOfLists.add(list2); + expect(combined, []..addAll(list1)..addAll(list2)); + listOfLists.clear(); + expect(combined, isEmpty); + }); + + test('should reflect underlying changes with a single list', () { + var backing1 = []; + var combined = new CombinedListView([backing1]); + expect(combined, isEmpty); + backing1.addAll(list1); + expect(combined, list1); + }); +} From 8d1a8876093b914f220e12ce088e469482d5e6c0 Mon Sep 17 00:00:00 2001 From: Matan Lurey Date: Wed, 1 Mar 2017 13:58:59 -0800 Subject: [PATCH 066/235] Add CombinedIterableView (dart-lang/collection#52) --- pkgs/collection/lib/collection.dart | 1 + .../combined_wrappers/combined_iterable.dart | 53 ++++++++++++++++ .../test/combined_wrapper/iterable_test.dart | 60 +++++++++++++++++++ .../list_test.dart} | 2 +- 4 files changed, 115 insertions(+), 1 deletion(-) create mode 100644 pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart create mode 100644 pkgs/collection/test/combined_wrapper/iterable_test.dart rename pkgs/collection/test/{combined_list_view_test.dart => combined_wrapper/list_test.dart} (97%) diff --git a/pkgs/collection/lib/collection.dart b/pkgs/collection/lib/collection.dart index 2ea73a7c..70124322 100644 --- a/pkgs/collection/lib/collection.dart +++ b/pkgs/collection/lib/collection.dart @@ -4,6 +4,7 @@ export "src/algorithms.dart"; export "src/canonicalized_map.dart"; +export "src/combined_wrappers/combined_iterable.dart"; export "src/combined_wrappers/combined_list.dart"; export "src/comparators.dart"; export "src/equality.dart"; diff --git a/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart b/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart new file mode 100644 index 00000000..62e02bea --- /dev/null +++ b/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart @@ -0,0 +1,53 @@ +// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import 'dart:collection'; + +/// A view of several iterables combined sequentially into a single iterable. +/// +/// All methods and accessors treat the [CombinedIterableView] as if it were a +/// single concatenated iterable, but the underlying implementation is based on +/// lazily accessing individual iterable instances. This means that if the +/// underlying iterables change, the [CombinedIterableView] will reflect those +/// changes. +class CombinedIterableView extends IterableBase { + /// The iterables that this combines. + final Iterable> _iterables; + + /// Creates a combined view of [iterables]. + const CombinedIterableView(this._iterables); + + Iterator get iterator => + new _CombinedIterator(_iterables.map((i) => i.iterator).iterator); + + // Special cased isEmpty/length since many iterables have an efficient + // implementation instead of running through the entire iterator. + + bool get isEmpty => _iterables.every((i) => i.isEmpty); + + int get length => _iterables.fold(0, (length, i) => length + i.length); +} + +/// The iterator for [CombinedIterableView]. +/// +/// This moves through each iterable's iterators in sequence. +class _CombinedIterator implements Iterator { + /// The iterators that this combines. + /// + /// Because this comes from a call to [Iterable.map], it's lazy and will + /// avoid instantiating unnecessary iterators. + final Iterator> _iterators; + + _CombinedIterator(this._iterators); + + T get current => _iterators.current?.current; + + bool moveNext() { + var current = _iterators.current; + if (current != null && current.moveNext()) { + return true; + } + return _iterators.moveNext() && moveNext(); + } +} diff --git a/pkgs/collection/test/combined_wrapper/iterable_test.dart b/pkgs/collection/test/combined_wrapper/iterable_test.dart new file mode 100644 index 00000000..a473a021 --- /dev/null +++ b/pkgs/collection/test/combined_wrapper/iterable_test.dart @@ -0,0 +1,60 @@ +// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import 'package:collection/collection.dart'; +import 'package:test/test.dart'; + +void main() { + var iterable1 = new Iterable.generate(3); + var iterable2 = new Iterable.generate(3, (i) => i + 3); + var iterable3 = new Iterable.generate(3, (i) => i + 6); + + test('should combine multiple iterables when iterating', () { + var combined = new CombinedIterableView([iterable1, iterable2, iterable3]); + expect(combined, [0, 1, 2, 3, 4, 5, 6, 7, 8]); + }); + + test('should combine multiple iterables with some empty ones', () { + var combined = new CombinedIterableView( + [iterable1, [], iterable2, [], iterable3, []]); + expect(combined, [0, 1, 2, 3, 4, 5, 6, 7, 8]); + }); + + test('should function as an empty iterable when no iterables are passed', () { + var empty = new CombinedIterableView([]); + expect(empty, isEmpty); + }); + + test('should function as an empty iterable with all empty iterables', () { + var empty = new CombinedIterableView([[], [], []]); + expect(empty, isEmpty); + }); + + test('should reflect changes from the underlying iterables', () { + var list1 = []; + var list2 = []; + var combined = new CombinedIterableView([list1, list2]); + expect(combined, isEmpty); + list1.addAll([1, 2]); + list2.addAll([3, 4]); + expect(combined, [1, 2, 3, 4]); + expect(combined.last, 4); + expect(combined.first, 1); + }); + + test('should reflect changes from the iterable of iterables', () { + var iterables = []; + var combined = new CombinedIterableView(iterables); + expect(combined, isEmpty); + expect(combined, hasLength(0)); + + iterables.add(iterable1); + expect(combined, isNotEmpty); + expect(combined, hasLength(3)); + + iterables.clear(); + expect(combined, isEmpty); + expect(combined, hasLength(0)); + }); +} diff --git a/pkgs/collection/test/combined_list_view_test.dart b/pkgs/collection/test/combined_wrapper/list_test.dart similarity index 97% rename from pkgs/collection/test/combined_list_view_test.dart rename to pkgs/collection/test/combined_wrapper/list_test.dart index d61e51ad..e072097e 100644 --- a/pkgs/collection/test/combined_list_view_test.dart +++ b/pkgs/collection/test/combined_wrapper/list_test.dart @@ -5,7 +5,7 @@ import 'package:collection/collection.dart'; import 'package:test/test.dart'; -import 'unmodifiable_collection_test.dart' as common; +import '../unmodifiable_collection_test.dart' as common; void main() { var list1 = [1, 2, 3]; From d81d3d824da68f7d95d108e81ba3f69bb51b94a1 Mon Sep 17 00:00:00 2001 From: Matan Lurey Date: Thu, 23 Mar 2017 09:40:38 -0700 Subject: [PATCH 067/235] Add CombinedMapView (dart-lang/collection#53) * Add CombinedMapView. * Mistype. * Address feedback. * Address feedback. --- pkgs/collection/lib/collection.dart | 1 + .../combined_wrappers/combined_iterable.dart | 6 +- .../src/combined_wrappers/combined_map.dart | 52 ++++++++++++++++++ .../test/combined_wrapper/map_test.dart | 55 +++++++++++++++++++ 4 files changed, 112 insertions(+), 2 deletions(-) create mode 100644 pkgs/collection/lib/src/combined_wrappers/combined_map.dart create mode 100644 pkgs/collection/test/combined_wrapper/map_test.dart diff --git a/pkgs/collection/lib/collection.dart b/pkgs/collection/lib/collection.dart index 70124322..70f9fbcf 100644 --- a/pkgs/collection/lib/collection.dart +++ b/pkgs/collection/lib/collection.dart @@ -6,6 +6,7 @@ export "src/algorithms.dart"; export "src/canonicalized_map.dart"; export "src/combined_wrappers/combined_iterable.dart"; export "src/combined_wrappers/combined_list.dart"; +export "src/combined_wrappers/combined_map.dart"; export "src/comparators.dart"; export "src/equality.dart"; export "src/equality_map.dart"; diff --git a/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart b/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart index 62e02bea..511876ed 100644 --- a/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart +++ b/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart @@ -21,8 +21,10 @@ class CombinedIterableView extends IterableBase { Iterator get iterator => new _CombinedIterator(_iterables.map((i) => i.iterator).iterator); - // Special cased isEmpty/length since many iterables have an efficient - // implementation instead of running through the entire iterator. + // Special cased contains/isEmpty/length since many iterables have an + // efficient implementation instead of running through the entire iterator. + + bool contains(Object element) => _iterables.any((i) => i.contains(element)); bool get isEmpty => _iterables.every((i) => i.isEmpty); diff --git a/pkgs/collection/lib/src/combined_wrappers/combined_map.dart b/pkgs/collection/lib/src/combined_wrappers/combined_map.dart new file mode 100644 index 00000000..8c2760b7 --- /dev/null +++ b/pkgs/collection/lib/src/combined_wrappers/combined_map.dart @@ -0,0 +1,52 @@ +// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import 'dart:collection'; + +import 'combined_iterable.dart'; + +/// Returns a new map that represents maps flattened into a single map. +/// +/// All methods and accessors treat the new map as-if it were a single +/// concatenated map, but the underlying implementation is based on lazily +/// accessing individual map instances. In the occasion where a key occurs in +/// multiple maps the first value is returned. +/// +/// The resulting map has an index operator (`[]`) and `length` property that +/// are both `O(maps)`, rather than `O(1)`, and the map is unmodifiable - but +/// underlying changes to these maps are still accessible from the resulting +/// map. +class CombinedMapView extends UnmodifiableMapBase { + final Iterable> _maps; + + /// Create a new combined view into multiple maps. + /// + /// The iterable is accessed lazily so it should be collection type like + /// [List] or [Set] rather than a lazy iterable produced by `map()` et al. + CombinedMapView(this._maps); + + V operator [](Object key) { + for (var map in _maps) { + // Avoid two hash lookups on a positive hit. + var value = map[key]; + if (value != null || map.containsKey(value)) { + return value; + } + } + return null; + } + + /// The keys of [this]. + /// + /// The returned iterable has efficient `length` and `contains` operations, + /// based on [length] and [containsKey] of the individual maps. + /// + /// The order of iteration is defined by the individual `Map` implementations, + /// but must be consistent between changes to the maps. + /// + /// Unlike most [Map] implementations, modifying an individual map while + /// iterating the keys will _sometimes_ throw. This behavior may change in + /// the future. + Iterable get keys => new CombinedIterableView(_maps.map((m) => m.keys)); +} diff --git a/pkgs/collection/test/combined_wrapper/map_test.dart b/pkgs/collection/test/combined_wrapper/map_test.dart new file mode 100644 index 00000000..c4473733 --- /dev/null +++ b/pkgs/collection/test/combined_wrapper/map_test.dart @@ -0,0 +1,55 @@ +// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import 'package:collection/collection.dart'; +import 'package:test/test.dart'; + +import '../unmodifiable_collection_test.dart' as common; + +void main() { + var map1 = const {1: 1, 2: 2, 3: 3}; + var map2 = const {4: 4, 5: 5, 6: 6}; + var map3 = const {7: 7, 8: 8, 9: 9}; + var concat = {}..addAll(map1)..addAll(map2)..addAll(map3); + + // In every way possible this should test the same as an UnmodifiableMapView. + common.testReadMap(concat, new CombinedMapView( + [map1, map2, map3] + ), 'CombinedMapView'); + + common.testReadMap(concat, new CombinedMapView( + [map1, {}, map2, {}, map3, {}] + ), 'CombinedMapView (some empty)'); + + test('should function as an empty map when no maps are passed', () { + var empty = new CombinedMapView([]); + expect(empty, isEmpty); + expect(empty.length, 0); + }); + + test('should function as an empty map when only empty maps are passed', () { + var empty = new CombinedMapView([{}, {}, {}]); + expect(empty, isEmpty); + expect(empty.length, 0); + }); + + test('should reflect underlying changes back to the combined map', () { + var backing1 = {}; + var backing2 = {}; + var combined = new CombinedMapView([backing1, backing2]); + expect(combined, isEmpty); + backing1.addAll(map1); + expect(combined, map1); + backing2.addAll(map2); + expect(combined, new Map.from(backing1)..addAll(backing2)); + }); + + test('should reflect underlying changes with a single map', () { + var backing1 = {}; + var combined = new CombinedMapView([backing1]); + expect(combined, isEmpty); + backing1.addAll(map1); + expect(combined, map1); + }); +} From cf806239036568e439896deb1682ab41dcadd9cc Mon Sep 17 00:00:00 2001 From: Matan Lurey Date: Sun, 26 Mar 2017 10:48:26 -0700 Subject: [PATCH 068/235] Prepare to release 1.14.0. (dart-lang/collection#54) --- pkgs/collection/CHANGELOG.md | 2 ++ pkgs/collection/pubspec.yaml | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 97792cd5..99481ca5 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,6 +1,8 @@ ## 1.14.0 * Add `CombinedListView`, a view of several lists concatenated together. +* Add `CombinedIterableView`, a view of several iterables concatenated together. +* Add `CombinedMapView`, a view of several maps concatenated together. ## 1.13.0 diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 50601125..052fb98c 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.14.0-dev +version: 1.14.0 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection From 320d2f30ce8a10b28749b49b38201a7d787d841b Mon Sep 17 00:00:00 2001 From: Matan Lurey Date: Tue, 16 May 2017 20:10:29 -0700 Subject: [PATCH 069/235] Add travis and dartfmt. (dart-lang/collection#57) --- pkgs/collection/.travis.yml | 20 ++ pkgs/collection/lib/src/algorithms.dart | 58 ++-- .../collection/lib/src/canonicalized_map.dart | 10 +- pkgs/collection/lib/src/comparators.dart | 22 +- .../lib/src/empty_unmodifiable_set.dart | 3 +- pkgs/collection/lib/src/equality.dart | 29 +- pkgs/collection/lib/src/equality_map.dart | 1 - pkgs/collection/lib/src/equality_set.dart | 1 - pkgs/collection/lib/src/functions.dart | 32 +- pkgs/collection/lib/src/iterable_zip.dart | 3 +- pkgs/collection/lib/src/priority_queue.dart | 4 +- pkgs/collection/lib/src/queue_list.dart | 14 +- pkgs/collection/lib/src/typed_wrappers.dart | 2 +- .../lib/src/unmodifiable_wrappers.dart | 8 +- pkgs/collection/lib/src/wrappers.dart | 14 +- pkgs/collection/lib/wrappers.dart | 1 - pkgs/collection/test/algorithms_test.dart | 24 +- .../test/canonicalized_map_test.dart | 44 +-- .../test/combined_wrapper/iterable_test.dart | 4 +- .../test/combined_wrapper/list_test.dart | 10 +- .../test/combined_wrapper/map_test.dart | 12 +- pkgs/collection/test/comparators_test.dart | 72 ++--- pkgs/collection/test/equality_set_test.dart | 4 +- pkgs/collection/test/equality_test.dart | 133 ++++---- pkgs/collection/test/functions_test.dart | 283 +++++++++++------- .../test/ignore_ascii_case_test.dart | 7 +- pkgs/collection/test/iterable_zip_test.dart | 184 +++++++++--- pkgs/collection/test/priority_queue_test.dart | 40 ++- pkgs/collection/test/queue_list_test.dart | 13 +- .../test/typed_wrapper/iterable_test.dart | 31 +- .../test/typed_wrapper/map_test.dart | 72 +++-- .../test/typed_wrapper/queue_test.dart | 4 +- .../test/typed_wrapper/set_test.dart | 4 +- .../test/unmodifiable_collection_test.dart | 128 ++++---- pkgs/collection/test/wrapper_test.dart | 65 ++-- 35 files changed, 761 insertions(+), 595 deletions(-) create mode 100644 pkgs/collection/.travis.yml diff --git a/pkgs/collection/.travis.yml b/pkgs/collection/.travis.yml new file mode 100644 index 00000000..db953f8b --- /dev/null +++ b/pkgs/collection/.travis.yml @@ -0,0 +1,20 @@ +language: dart +sudo: false +dart: + - dev + - stable +cache: + directories: + - $HOME/.pub-cache +dart_task: + - test: --platform vm + - test: --platform chrome + - test: --platform dartium + install_dartium: true + - dartanalyzer + - dartfmt +matrix: + # Only run dartfmt checks with stable. + exclude: + - dart: dev + dart_task: dartfmt diff --git a/pkgs/collection/lib/src/algorithms.dart b/pkgs/collection/lib/src/algorithms.dart index d8ca1029..fbf33ec9 100644 --- a/pkgs/collection/lib/src/algorithms.dart +++ b/pkgs/collection/lib/src/algorithms.dart @@ -79,7 +79,6 @@ void shuffle(List list, [int start = 0, int end = null]) { } } - /// Reverses a list, or a part of a list, in-place. void reverse(List list, [int start = 0, int end = null]) { if (end == null) end = list.length; @@ -110,8 +109,8 @@ void _reverse(List list, int start, int end) { /// /// This insertion sort is stable: Equal elements end up in the same order /// as they started in. -void insertionSort/**/(List/**/ list, {int compare(/*=T*/ a, /*=T*/ b), - int start: 0, int end}) { +void insertionSort/**/(List/**/ list, + {int compare(/*=T*/ a, /*=T*/ b), int start: 0, int end}) { // If the same method could have both positional and named optional // parameters, this should be (list, [start, end], {compare}). compare ??= defaultCompare/**/(); @@ -153,8 +152,8 @@ const int _MERGE_SORT_LIMIT = 32; /// /// This merge sort is stable: Equal elements end up in the same order /// as they started in. -void mergeSort/**/(List/**/ list, {int start: 0, int end, - int compare(/*=T*/ a, /*=T*/ b)}) { +void mergeSort/**/(List/**/ list, + {int start: 0, int end, int compare(/*=T*/ a, /*=T*/ b)}) { end ??= list.length; compare ??= defaultCompare/**/(); @@ -178,18 +177,20 @@ void mergeSort/**/(List/**/ list, {int start: 0, int end, _mergeSort(list, compare, middle, end, scratchSpace, 0); int firstTarget = end - firstLength; _mergeSort(list, compare, start, middle, list, firstTarget); - _merge(compare, - list, firstTarget, end, - scratchSpace, 0, secondLength, - list, start); + _merge(compare, list, firstTarget, end, scratchSpace, 0, secondLength, list, + start); } /// Performs an insertion sort into a potentially different list than the /// one containing the original values. /// /// It will work in-place as well. -void _movingInsertionSort/**/(List/**/ list, - int compare(/*=T*/ a, /*=T*/ b), int start, int end, List/**/ target, +void _movingInsertionSort/**/( + List/**/ list, + int compare(/*=T*/ a, /*=T*/ b), + int start, + int end, + List/**/ target, int targetOffset) { int length = end - start; if (length == 0) return; @@ -206,8 +207,7 @@ void _movingInsertionSort/**/(List/**/ list, min = mid + 1; } } - target.setRange(min + 1, targetOffset + i + 1, - target, min); + target.setRange(min + 1, targetOffset + i + 1, target, min); target[min] = element; } } @@ -232,16 +232,12 @@ void _mergeSort/**/(List/**/ list, int compare(/*=T*/ a, /*=T*/ b), // Here secondLength >= firstLength (differs by at most one). int targetMiddle = targetOffset + firstLength; // Sort the second half into the end of the target area. - _mergeSort(list, compare, middle, end, - target, targetMiddle); + _mergeSort(list, compare, middle, end, target, targetMiddle); // Sort the first half into the end of the source area. - _mergeSort(list, compare, start, middle, - list, middle); + _mergeSort(list, compare, start, middle, list, middle); // Merge the two parts into the target area. - _merge(compare, - list, middle, middle + firstLength, - target, targetMiddle, targetMiddle + secondLength, - target, targetOffset); + _merge(compare, list, middle, middle + firstLength, target, targetMiddle, + targetMiddle + secondLength, target, targetOffset); } /// Merges two lists into a target list. @@ -252,10 +248,16 @@ void _mergeSort/**/(List/**/ list, int compare(/*=T*/ a, /*=T*/ b), /// For equal object, elements from [firstList] are always preferred. /// This allows the merge to be stable if the first list contains elements /// that started out earlier than the ones in [secondList] -void _merge/**/(int compare(/*=T*/ a, /*=T*/ b), - List/**/ firstList, int firstStart, int firstEnd, - List/**/ secondList, int secondStart, int secondEnd, - List/**/ target, int targetOffset) { +void _merge/**/( + int compare(/*=T*/ a, /*=T*/ b), + List/**/ firstList, + int firstStart, + int firstEnd, + List/**/ secondList, + int secondStart, + int secondEnd, + List/**/ target, + int targetOffset) { // No empty lists reaches here. assert(firstStart < firstEnd); assert(secondStart < secondEnd); @@ -266,7 +268,7 @@ void _merge/**/(int compare(/*=T*/ a, /*=T*/ b), while (true) { if (compare(firstElement, secondElement) <= 0) { target[targetOffset++] = firstElement; - if (cursor1 == firstEnd) break; // Flushing second list after loop. + if (cursor1 == firstEnd) break; // Flushing second list after loop. firstElement = firstList[cursor1++]; } else { target[targetOffset++] = secondElement; @@ -283,6 +285,6 @@ void _merge/**/(int compare(/*=T*/ a, /*=T*/ b), } // First list empties first. Reached by break above. target[targetOffset++] = secondElement; - target.setRange(targetOffset, targetOffset + (secondEnd - cursor2), - secondList, cursor2); + target.setRange( + targetOffset, targetOffset + (secondEnd - cursor2), secondList, cursor2); } diff --git a/pkgs/collection/lib/src/canonicalized_map.dart b/pkgs/collection/lib/src/canonicalized_map.dart index cc78105e..a8af43a0 100644 --- a/pkgs/collection/lib/src/canonicalized_map.dart +++ b/pkgs/collection/lib/src/canonicalized_map.dart @@ -48,7 +48,7 @@ class CanonicalizedMap implements Map { /// methods that take arbitrary objects. It can be used to filter out keys /// that can't be canonicalized. CanonicalizedMap.from(Map other, C canonicalize(K key), - {bool isValidKey(Object key)}) + {bool isValidKey(Object key)}) : _canonicalize = canonicalize, _isValidKeyFn = isValidKey { addAll(other); @@ -94,8 +94,9 @@ class CanonicalizedMap implements Map { int get length => _base.length; V putIfAbsent(K key, V ifAbsent()) { - return _base.putIfAbsent(_canonicalize(key), - () => new Pair(key, ifAbsent())).last; + return _base + .putIfAbsent(_canonicalize(key), () => new Pair(key, ifAbsent())) + .last; } V remove(Object key) { @@ -108,6 +109,7 @@ class CanonicalizedMap implements Map { String toString() => Maps.mapToString(this); - bool _isValidKey(Object key) => (key == null || key is K) && + bool _isValidKey(Object key) => + (key == null || key is K) && (_isValidKeyFn == null || _isValidKeyFn(key)); } diff --git a/pkgs/collection/lib/src/comparators.dart b/pkgs/collection/lib/src/comparators.dart index b0824a82..5fc55b2e 100644 --- a/pkgs/collection/lib/src/comparators.dart +++ b/pkgs/collection/lib/src/comparators.dart @@ -3,11 +3,11 @@ // BSD-style license that can be found in the LICENSE file. // Character constants. -const int _zero = 0x30; -const int _upperCaseA = 0x41; -const int _upperCaseZ = 0x5a; -const int _lowerCaseA = 0x61; -const int _lowerCaseZ = 0x7a; +const int _zero = 0x30; +const int _upperCaseA = 0x41; +const int _upperCaseZ = 0x5a; +const int _lowerCaseA = 0x61; +const int _lowerCaseZ = 0x7a; const int _asciiCaseBit = 0x20; /// Checks if strings [a] and [b] differ only on the case of ASCII letters. @@ -43,7 +43,6 @@ bool equalsIgnoreAsciiCase(String a, String b) { return true; } - /// Hash code for a string which is compatible with [equalsIgnoreAsciiCase]. /// /// The hash code is unaffected by changing the case of ASCII letters, but @@ -69,7 +68,6 @@ int hashIgnoreAsciiCase(String string) { return 0x1fffffff & (hash + ((0x00003fff & hash) << 15)); } - /// Compares [a] and [b] lexically, converting ASCII letters to upper case. /// /// Comparison treats all lower-case ASCII letters as upper-case letters, @@ -107,7 +105,6 @@ int compareAsciiUpperCase(String a, String b) { return defaultResult.sign; } - /// Compares [a] and [b] lexically, converting ASCII letters to lower case. /// /// Comparison treats all upper-case ASCII letters as lower-case letters, @@ -258,8 +255,7 @@ int compareAsciiUpperCaseNatural(String a, String b) { /// is a digit, and if so, the the one with the digit is the greater number. /// /// Otherwise just returns the difference between [aChar] and [bChar]. -int _compareNaturally( - String a, String b, int index, int aChar, int bChar) { +int _compareNaturally(String a, String b, int index, int aChar, int bChar) { assert(aChar != bChar); var aIsDigit = _isDigit(aChar); var bIsDigit = _isDigit(bChar); @@ -302,14 +298,14 @@ int _compareNumerically(String a, String b, int aChar, int bChar, int index) { if (aChar == _zero) { do { aIndex++; - if (aIndex == a.length) return -1; // number in a is zero, b is not. + if (aIndex == a.length) return -1; // number in a is zero, b is not. aChar = a.codeUnitAt(aIndex); } while (aChar == _zero); if (!_isDigit(aChar)) return -1; } else if (bChar == _zero) { do { bIndex++; - if (bIndex == b.length) return 1; // number in b is zero, a is not. + if (bIndex == b.length) return 1; // number in b is zero, a is not. bChar = b.codeUnitAt(bIndex); } while (bChar == _zero); if (!_isDigit(bChar)) return 1; @@ -343,7 +339,7 @@ int _compareNumerically(String a, String b, int aChar, int bChar, int index) { // bChar is non-digit, so a has longer number. return 1; } else if (bIsDigit) { - return -1; // b has longer number. + return -1; // b has longer number. } else { // Neither is digit, so numbers had same numerical value. // Fall back on number of leading zeros diff --git a/pkgs/collection/lib/src/empty_unmodifiable_set.dart b/pkgs/collection/lib/src/empty_unmodifiable_set.dart index 581532f6..69212a7c 100644 --- a/pkgs/collection/lib/src/empty_unmodifiable_set.dart +++ b/pkgs/collection/lib/src/empty_unmodifiable_set.dart @@ -11,7 +11,7 @@ import 'unmodifiable_wrappers.dart'; /// An unmodifiable, empty set that can have a const constructor. class EmptyUnmodifiableSet extends IterableBase implements UnmodifiableSetView { - static /*=T*/ _throw/**/() { + static/*=T*/ _throw/**/() { throw new UnsupportedError("Cannot modify an unmodifiable Set"); } @@ -37,4 +37,3 @@ class EmptyUnmodifiableSet extends IterableBase void retainWhere(bool test(E element)) => _throw(); void retainAll(Iterable elements) => _throw(); } - diff --git a/pkgs/collection/lib/src/equality.dart b/pkgs/collection/lib/src/equality.dart index 3b10176e..aa5effac 100644 --- a/pkgs/collection/lib/src/equality.dart +++ b/pkgs/collection/lib/src/equality.dart @@ -96,8 +96,8 @@ class IdentityEquality implements Equality { /// Two iterables are equal if they have the same elements in the same order. class IterableEquality implements Equality> { final Equality _elementEquality; - const IterableEquality([Equality elementEquality = - const DefaultEquality()]) + const IterableEquality( + [Equality elementEquality = const DefaultEquality()]) : _elementEquality = elementEquality; bool equals(Iterable elements1, Iterable elements2) { @@ -238,8 +238,7 @@ class UnorderedIterableEquality extends _UnorderedEquality> { /// This equality behaves the same as [UnorderedIterableEquality] except that /// it expects sets instead of iterables as arguments. class SetEquality extends _UnorderedEquality> { - const SetEquality( - [Equality elementEquality = const DefaultEquality()]) + const SetEquality([Equality elementEquality = const DefaultEquality()]) : super(elementEquality); bool isValidKey(Object o) => o is Set; @@ -257,14 +256,14 @@ class _MapEntry { int get hashCode => (3 * equality._keyEquality.hash(key) + - 7 * equality._valueEquality.hash(value)) & _HASH_MASK; + 7 * equality._valueEquality.hash(value)) & + _HASH_MASK; - bool operator==(Object other) { + bool operator ==(Object other) { if (other is! _MapEntry) return false; _MapEntry otherEntry = other; return equality._keyEquality.equals(key, otherEntry.key) && - equality._valueEquality.equals(value, otherEntry.value); - + equality._valueEquality.equals(value, otherEntry.value); } } @@ -275,9 +274,11 @@ class _MapEntry { class MapEquality implements Equality> { final Equality _keyEquality; final Equality _valueEquality; - const MapEquality({ Equality keys : const DefaultEquality(), - Equality values : const DefaultEquality() }) - : _keyEquality = keys, _valueEquality = values; + const MapEquality( + {Equality keys: const DefaultEquality(), + Equality values: const DefaultEquality()}) + : _keyEquality = keys, + _valueEquality = values; bool equals(Map e1, Map e2) { if (identical(e1, e2)) return true; @@ -377,14 +378,16 @@ class DeepCollectionEquality implements Equality { final Equality _base; final bool _unordered; const DeepCollectionEquality([Equality base = const DefaultEquality()]) - : _base = base, _unordered = false; + : _base = base, + _unordered = false; /// Creates a deep equality on collections where the order of lists and /// iterables are not considered important. That is, lists and iterables are /// treated as unordered iterables. const DeepCollectionEquality.unordered( [Equality base = const DefaultEquality()]) - : _base = base, _unordered = true; + : _base = base, + _unordered = true; bool equals(e1, e2) { if (e1 is Set) { diff --git a/pkgs/collection/lib/src/equality_map.dart b/pkgs/collection/lib/src/equality_map.dart index 686e5bd9..14f074c6 100644 --- a/pkgs/collection/lib/src/equality_map.dart +++ b/pkgs/collection/lib/src/equality_map.dart @@ -29,4 +29,3 @@ class EqualityMap extends DelegatingMap { addAll(other); } } - diff --git a/pkgs/collection/lib/src/equality_set.dart b/pkgs/collection/lib/src/equality_set.dart index b0582ce6..6f6a4267 100644 --- a/pkgs/collection/lib/src/equality_set.dart +++ b/pkgs/collection/lib/src/equality_set.dart @@ -29,4 +29,3 @@ class EqualitySet extends DelegatingSet { addAll(other); } } - diff --git a/pkgs/collection/lib/src/functions.dart b/pkgs/collection/lib/src/functions.dart index 6e5bb0ad..14fff53e 100644 --- a/pkgs/collection/lib/src/functions.dart +++ b/pkgs/collection/lib/src/functions.dart @@ -9,7 +9,7 @@ import 'utils.dart'; // TODO(nweiz): When sdk#26488 is fixed, use overloads to ensure that if [key] // or [value] isn't passed, `K2`/`V2` defaults to `K1`/`V1`, respectively. -/// Creates a new map from [map] with new keys and values. +/// Creates a new map from [map] with new keys and values. /// /// The return values of [key] are used as the keys and the return values of /// [value] are used as the values for the new map. @@ -19,7 +19,7 @@ Map/**/ mapMap/**/(Map/**/ map, key ??= (mapKey, _) => mapKey as dynamic/*=K2*/; value ??= (_, mapValue) => mapValue as dynamic/*=V2*/; - var result = /**/{}; + var result = /**/ {}; map.forEach((mapKey, mapValue) { result[key(mapKey, mapValue)] = value(mapKey, mapValue); }); @@ -33,13 +33,12 @@ Map/**/ mapMap/**/(Map/**/ map, /// values. If [value] is omitted, the value from [map2] is used. Map/**/ mergeMaps/**/(Map/**/ map1, Map/**/ map2, {/*=V*/ value(/*=V*/ value1, /*=V*/ value2)}) { - var result = new Map/**/.from(map1); + var result = new Map/**/ .from(map1); if (value == null) return result..addAll(map2); map2.forEach((key, mapValue) { - result[key] = result.containsKey(key) - ? value(result[key], mapValue) - : mapValue; + result[key] = + result.containsKey(key) ? value(result[key], mapValue) : mapValue; }); return result; } @@ -49,9 +48,10 @@ Map/**/ mergeMaps/**/(Map/**/ map1, Map/**/ map2, /// Returns a map from keys computed by [key] to a list of all values for which /// [key] returns that key. The values appear in the list in the same relative /// order as in [values]. -Map*/> groupBy/**/(Iterable/**/ values, +Map*/ > groupBy/**/( + Iterable/**/ values, /*=T*/ key(/*=S*/ element)) { - var map = /*>*/{}; + var map = /*>*/ {}; for (var element in values) { var list = map.putIfAbsent(key(element), () => []); list.add(element); @@ -114,15 +114,15 @@ Map*/> groupBy/**/(Iterable/**/ values, /// that vertex has no outgoing edges. This isn't checked, but if it's not /// satisfied, the function may crash or provide unexpected output. For example, /// `{"a": ["b"]}` is not valid, but `{"a": ["b"], "b": []}` is. -Map*/> transitiveClosure/**/( - Map*/> graph) { +Map*/ > transitiveClosure/**/( + Map*/ > graph) { // This uses [Warshall's algorithm][], modified not to add a vertex from each // node to itself. // // [Warshall's algorithm]: https://en.wikipedia.org/wiki/Floyd%E2%80%93Warshall_algorithm#Applications_and_generalizations. - var result = /**/{}; + var result = /**/ {}; graph.forEach((vertex, edges) { - result[vertex] = new Set/**/.from(edges); + result[vertex] = new Set/**/ .from(edges); }); // Lists are faster to iterate than maps, so we create a list since we're @@ -154,14 +154,14 @@ Map*/> transitiveClosure/**/( /// that vertex has no outgoing edges. This isn't checked, but if it's not /// satisfied, the function may crash or provide unexpected output. For example, /// `{"a": ["b"]}` is not valid, but `{"a": ["b"], "b": []}` is. -List*/> stronglyConnectedComponents/**/( - Map*/> graph) { +List*/ > stronglyConnectedComponents/**/( + Map*/ > graph) { // This uses [Tarjan's algorithm][]. // // [Tarjan's algorithm]: https://en.wikipedia.org/wiki/Tarjan%27s_strongly_connected_components_algorithm var index = 0; - var stack = /**/[]; - var result = /*>*/[]; + var stack = /**/ []; + var result = /*>*/ []; // The order of these doesn't matter, so we use un-linked implementations to // avoid unnecessary overhead. diff --git a/pkgs/collection/lib/src/iterable_zip.dart b/pkgs/collection/lib/src/iterable_zip.dart index 638c6867..b9834370 100644 --- a/pkgs/collection/lib/src/iterable_zip.dart +++ b/pkgs/collection/lib/src/iterable_zip.dart @@ -16,8 +16,7 @@ import "dart:collection"; class IterableZip extends IterableBase> { final Iterable> _iterables; - IterableZip(Iterable> iterables) - : this._iterables = iterables; + IterableZip(Iterable> iterables) : this._iterables = iterables; /// Returns an iterator that combines values of the iterables' iterators /// as long as they all have values. diff --git a/pkgs/collection/lib/src/priority_queue.dart b/pkgs/collection/lib/src/priority_queue.dart index e0f65b4d..84c43c23 100644 --- a/pkgs/collection/lib/src/priority_queue.dart +++ b/pkgs/collection/lib/src/priority_queue.dart @@ -276,8 +276,8 @@ class HeapPriorityQueue implements PriorityQueue { } // Then go to the right sibling of the left-child. position += 1; - } while (position > _length); // Happens if last element is a left child. - } while (position != 1); // At root again. Happens for right-most element. + } while (position > _length); // Happens if last element is a left child. + } while (position != 1); // At root again. Happens for right-most element. return -1; } diff --git a/pkgs/collection/lib/src/queue_list.dart b/pkgs/collection/lib/src/queue_list.dart index bf75f339..73c1f66e 100644 --- a/pkgs/collection/lib/src/queue_list.dart +++ b/pkgs/collection/lib/src/queue_list.dart @@ -19,7 +19,9 @@ class QueueList extends Object with ListMixin implements Queue { /// /// If [initialCapacity] is given, prepare the queue for at least that many /// elements. - QueueList([int initialCapacity]) : _head = 0, _tail = 0 { + QueueList([int initialCapacity]) + : _head = 0, + _tail = 0 { if (initialCapacity == null || initialCapacity < _INITIAL_CAPACITY) { initialCapacity = _INITIAL_CAPACITY; } else if (!_isPowerOf2(initialCapacity)) { @@ -82,7 +84,9 @@ class QueueList extends Object with ListMixin implements Queue { // Queue interface. - void addLast(E element) { _add(element); } + void addLast(E element) { + _add(element); + } void addFirst(E element) { _head = (_head - 1) & (_table.length - 1); @@ -125,7 +129,7 @@ class QueueList extends Object with ListMixin implements Queue { int newTail = _tail + delta; // [delta] is negative. if (newTail >= 0) { _table.fillRange(newTail, _tail, null); - } else { + } else { newTail += _table.length; _table.fillRange(0, _tail, null); _table.fillRange(newTail, _table.length, null); @@ -141,7 +145,7 @@ class QueueList extends Object with ListMixin implements Queue { return _table[(_head + index) & (_table.length - 1)]; } - void operator[]=(int index, E value) { + void operator []=(int index, E value) { if (index < 0 || index >= length) { throw new RangeError("Index $index must be in the range [0..$length)."); } @@ -164,7 +168,7 @@ class QueueList extends Object with ListMixin implements Queue { static int _nextPowerOf2(int number) { assert(number > 0); number = (number << 1) - 1; - for(;;) { + for (;;) { int nextNumber = number & (number - 1); if (nextNumber == 0) return number; number = nextNumber; diff --git a/pkgs/collection/lib/src/typed_wrappers.dart b/pkgs/collection/lib/src/typed_wrappers.dart index 9416d811..d4c2fde0 100644 --- a/pkgs/collection/lib/src/typed_wrappers.dart +++ b/pkgs/collection/lib/src/typed_wrappers.dart @@ -66,7 +66,7 @@ abstract class _TypeSafeIterableBase implements Iterable { E get single => _base.single as E; E singleWhere(bool test(E element)) => - _base.singleWhere(_validate(test)) as E; + _base.singleWhere(_validate(test)) as E; Iterable skip(int n) => new TypeSafeIterable(_base.skip(n)); diff --git a/pkgs/collection/lib/src/unmodifiable_wrappers.dart b/pkgs/collection/lib/src/unmodifiable_wrappers.dart index 5efbee4c..9e74348c 100644 --- a/pkgs/collection/lib/src/unmodifiable_wrappers.dart +++ b/pkgs/collection/lib/src/unmodifiable_wrappers.dart @@ -19,14 +19,14 @@ import 'empty_unmodifiable_set.dart'; /// You can, for example, [sort] the list. /// Permitted operations defer to the wrapped list. class NonGrowableListView extends DelegatingList - with NonGrowableListMixin { + with NonGrowableListMixin { NonGrowableListView(List listBase) : super(listBase); } /// Mixin class that implements a throwing version of all list operations that /// change the List's length. abstract class NonGrowableListMixin implements List { - static /*=T*/ _throw/**/() { + static/*=T*/ _throw/**/() { throw new UnsupportedError( "Cannot change the length of a fixed-length list"); } @@ -105,7 +105,7 @@ class UnmodifiableSetView extends DelegatingSet /// Mixin class that implements a throwing version of all set operations that /// change the Set. abstract class UnmodifiableSetMixin implements Set { - static /*=T*/ _throw/**/() { + static/*=T*/ _throw/**/() { throw new UnsupportedError("Cannot modify an unmodifiable Set"); } @@ -145,7 +145,7 @@ abstract class UnmodifiableSetMixin implements Set { /// Mixin class that implements a throwing version of all map operations that /// change the Map. abstract class UnmodifiableMapMixin implements Map { - static /*=T*/ _throw/**/() { + static/*=T*/ _throw/**/() { throw new UnsupportedError("Cannot modify an unmodifiable Map"); } diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index 92760f60..1b917de8 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -106,7 +106,6 @@ class DelegatingIterable extends _DelegatingIterableBase { base is Iterable/**/ ? base : new TypeSafeIterable/**/(base); } - /// A [List] that delegates all operations to a base list. /// /// This class can be used to hide non-`List` methods of a list object, or it @@ -217,7 +216,6 @@ class DelegatingList extends DelegatingIterable implements List { List sublist(int start, [int end]) => _listBase.sublist(start, end); } - /// A [Set] that delegates all operations to a base set. /// /// This class can be used to hide non-`Set` methods of a set object, or it can @@ -328,9 +326,13 @@ class DelegatingQueue extends DelegatingIterable implements Queue { bool remove(Object object) => _baseQueue.remove(object); - void removeWhere(bool test(E element)) { _baseQueue.removeWhere(test); } + void removeWhere(bool test(E element)) { + _baseQueue.removeWhere(test); + } - void retainWhere(bool test(E element)) { _baseQueue.retainWhere(test); } + void retainWhere(bool test(E element)) { + _baseQueue.retainWhere(test); + } E removeFirst() => _baseQueue.removeFirst(); @@ -450,8 +452,8 @@ class MapKeySet extends _DelegatingIterableBase /// Throws an [UnsupportedError] since there's no corresponding method for /// [Map]s. - E lookup(E element) => throw new UnsupportedError( - "MapKeySet doesn't support lookup()."); + E lookup(E element) => + throw new UnsupportedError("MapKeySet doesn't support lookup()."); /// Returns a new set which contains all the elements of [this] and [other]. /// diff --git a/pkgs/collection/lib/wrappers.dart b/pkgs/collection/lib/wrappers.dart index 541456e8..13031f51 100644 --- a/pkgs/collection/lib/wrappers.dart +++ b/pkgs/collection/lib/wrappers.dart @@ -9,4 +9,3 @@ library dart.pkg.collection.wrappers; export "src/canonicalized_map.dart"; export "src/unmodifiable_wrappers.dart"; export "src/wrappers.dart"; - diff --git a/pkgs/collection/test/algorithms_test.dart b/pkgs/collection/test/algorithms_test.dart index 6e6f6309..dbd2633f 100644 --- a/pkgs/collection/test/algorithms_test.dart +++ b/pkgs/collection/test/algorithms_test.dart @@ -43,18 +43,19 @@ void main() { if (count == 10) fail("Shuffle didn't change order."); } while (true); }); - test("Shuffle sublist", (){ + test("Shuffle sublist", () { List l = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]; List c = l.toList(); shuffle(l, 4, 12); - expect(const IterableEquality().equals(l.getRange(0, 4), - c.getRange(0, 4)), isTrue); - expect(const IterableEquality().equals(l.getRange(12, 16), - c.getRange(12, 16)), isTrue); - expect(const UnorderedIterableEquality().equals(l.getRange(4, 12), - c.getRange(4, 12)), - isTrue); - + expect(const IterableEquality().equals(l.getRange(0, 4), c.getRange(0, 4)), + isTrue); + expect( + const IterableEquality().equals(l.getRange(12, 16), c.getRange(12, 16)), + isTrue); + expect( + const UnorderedIterableEquality() + .equals(l.getRange(4, 12), c.getRange(4, 12)), + isTrue); }); test("binsearch0", () { @@ -158,7 +159,7 @@ void main() { for (int i = 0; i < 25; i++) { List list = new List(i); for (int j = 0; j < i; j++) { - list[j] = random.nextInt(25); // Expect some equal elements. + list[j] = random.nextInt(25); // Expect some equal elements. } insertionSort(list); for (int j = 1; j < i; j++) { @@ -196,7 +197,7 @@ void main() { for (int i = 0; i < 250; i += 1) { List list = new List(i); for (int j = 0; j < i; j++) { - list[j] = random.nextInt(i); // Expect some equal elements. + list[j] = random.nextInt(i); // Expect some equal elements. } mergeSort(list); for (int j = 1; j < i; j++) { @@ -314,6 +315,7 @@ class C { final int id; C(this.id); } + int compareC(C one, C other) => one.id - other.id; class OC implements Comparable { diff --git a/pkgs/collection/test/canonicalized_map_test.dart b/pkgs/collection/test/canonicalized_map_test.dart index 19e6a48d..437e44fd 100644 --- a/pkgs/collection/test/canonicalized_map_test.dart +++ b/pkgs/collection/test/canonicalized_map_test.dart @@ -30,32 +30,20 @@ void main() { }); test("canonicalizes keys for addAll", () { - map.addAll({ - "1": "value 1", - "2": "value 2", - "3": "value 3" - }); + map.addAll({"1": "value 1", "2": "value 2", "3": "value 3"}); expect(map["01"], equals("value 1")); expect(map["02"], equals("value 2")); expect(map["03"], equals("value 3")); }); test("uses the final value for addAll collisions", () { - map.addAll({ - "1": "value 1", - "01": "value 2", - "001": "value 3" - }); + map.addAll({"1": "value 1", "01": "value 2", "001": "value 3"}); expect(map.length, equals(1)); expect(map["0001"], equals("value 3")); }); test("clear clears the map", () { - map.addAll({ - "1": "value 1", - "2": "value 2", - "3": "value 3" - }); + map.addAll({"1": "value 1", "2": "value 2", "3": "value 3"}); expect(map, isNot(isEmpty)); map.clear(); expect(map, isEmpty); @@ -73,8 +61,8 @@ void main() { test("canonicalizes keys for putIfAbsent", () { map["1"] = "value"; - expect(map.putIfAbsent("01", () => throw "shouldn't run"), - equals("value")); + expect( + map.putIfAbsent("01", () => throw "shouldn't run"), equals("value")); expect(map.putIfAbsent("2", () => "new value"), equals("new value")); }); @@ -137,12 +125,8 @@ void main() { }); test("values returns all values in the map", () { - map.addAll({ - "1": "value 1", - "01": "value 01", - "2": "value 2", - "03": "value 03" - }); + map.addAll( + {"1": "value 1", "01": "value 01", "2": "value 2", "03": "value 03"}); expect(map.values, equals(["value 01", "value 2", "value 03"])); }); @@ -150,22 +134,16 @@ void main() { group("CanonicalizedMap.from", () { test("canonicalizes its keys", () { - var map = new CanonicalizedMap.from({ - "1": "value 1", - "2": "value 2", - "3": "value 3" - }, int.parse); + var map = new CanonicalizedMap.from( + {"1": "value 1", "2": "value 2", "3": "value 3"}, int.parse); expect(map["01"], equals("value 1")); expect(map["02"], equals("value 2")); expect(map["03"], equals("value 3")); }); test("uses the final value for collisions", () { - var map = new CanonicalizedMap.from({ - "1": "value 1", - "01": "value 2", - "001": "value 3" - }, int.parse); + var map = new CanonicalizedMap.from( + {"1": "value 1", "01": "value 2", "001": "value 3"}, int.parse); expect(map.length, equals(1)); expect(map["0001"], equals("value 3")); }); diff --git a/pkgs/collection/test/combined_wrapper/iterable_test.dart b/pkgs/collection/test/combined_wrapper/iterable_test.dart index a473a021..33018212 100644 --- a/pkgs/collection/test/combined_wrapper/iterable_test.dart +++ b/pkgs/collection/test/combined_wrapper/iterable_test.dart @@ -16,8 +16,8 @@ void main() { }); test('should combine multiple iterables with some empty ones', () { - var combined = new CombinedIterableView( - [iterable1, [], iterable2, [], iterable3, []]); + var combined = + new CombinedIterableView([iterable1, [], iterable2, [], iterable3, []]); expect(combined, [0, 1, 2, 3, 4, 5, 6, 7, 8]); }); diff --git a/pkgs/collection/test/combined_wrapper/list_test.dart b/pkgs/collection/test/combined_wrapper/list_test.dart index e072097e..1a00f324 100644 --- a/pkgs/collection/test/combined_wrapper/list_test.dart +++ b/pkgs/collection/test/combined_wrapper/list_test.dart @@ -14,13 +14,11 @@ void main() { var concat = []..addAll(list1)..addAll(list2)..addAll(list3); // In every way possible this should test the same as an UnmodifiableListView. - common.testUnmodifiableList(concat, new CombinedListView( - [list1, list2, list3] - ), 'combineLists'); + common.testUnmodifiableList( + concat, new CombinedListView([list1, list2, list3]), 'combineLists'); - common.testUnmodifiableList(concat, new CombinedListView( - [list1, [], list2, [], list3, []] - ), 'combineLists'); + common.testUnmodifiableList(concat, + new CombinedListView([list1, [], list2, [], list3, []]), 'combineLists'); test('should function as an empty list when no lists are passed', () { var empty = new CombinedListView([]); diff --git a/pkgs/collection/test/combined_wrapper/map_test.dart b/pkgs/collection/test/combined_wrapper/map_test.dart index c4473733..832fe364 100644 --- a/pkgs/collection/test/combined_wrapper/map_test.dart +++ b/pkgs/collection/test/combined_wrapper/map_test.dart @@ -14,13 +14,13 @@ void main() { var concat = {}..addAll(map1)..addAll(map2)..addAll(map3); // In every way possible this should test the same as an UnmodifiableMapView. - common.testReadMap(concat, new CombinedMapView( - [map1, map2, map3] - ), 'CombinedMapView'); + common.testReadMap( + concat, new CombinedMapView([map1, map2, map3]), 'CombinedMapView'); - common.testReadMap(concat, new CombinedMapView( - [map1, {}, map2, {}, map3, {}] - ), 'CombinedMapView (some empty)'); + common.testReadMap( + concat, + new CombinedMapView([map1, {}, map2, {}, map3, {}]), + 'CombinedMapView (some empty)'); test('should function as an empty map when no maps are passed', () { var empty = new CombinedMapView([]); diff --git a/pkgs/collection/test/comparators_test.dart b/pkgs/collection/test/comparators_test.dart index 169c688c..aa868d95 100644 --- a/pkgs/collection/test/comparators_test.dart +++ b/pkgs/collection/test/comparators_test.dart @@ -57,63 +57,63 @@ void main() { "~" ]; - sortedBy(compare) => strings.toList()..shuffle()..sort(compare); + sortedBy(compare) => strings.toList() + ..shuffle() + ..sort(compare); test("String.compareTo", () { expect(sortedBy(null), strings); }); test("compareAsciiLowerCase", () { - expect(sortedBy(compareAsciiLowerCase), - sortedBy((a, b) { - int delta = a.toLowerCase().compareTo(b.toLowerCase()); - if (delta != 0) return delta; - if (a == b) return 0; - return a.compareTo(b); - })); + expect(sortedBy(compareAsciiLowerCase), sortedBy((a, b) { + int delta = a.toLowerCase().compareTo(b.toLowerCase()); + if (delta != 0) return delta; + if (a == b) return 0; + return a.compareTo(b); + })); }); test("compareAsciiUpperCase", () { - expect(sortedBy(compareAsciiUpperCase), - sortedBy((a, b) { - int delta = a.toUpperCase().compareTo(b.toUpperCase()); - if (delta != 0) return delta; - if (a == b) return 0; - return a.compareTo(b); - })); + expect(sortedBy(compareAsciiUpperCase), sortedBy((a, b) { + int delta = a.toUpperCase().compareTo(b.toUpperCase()); + if (delta != 0) return delta; + if (a == b) return 0; + return a.compareTo(b); + })); }); // Replace any digit sequence by ("0", value, length) as char codes. // This will sort alphabetically (by charcode) the way digits sort // numerically, and the leading 0 means it sorts like a digit // compared to non-digits. - replaceNumbers(String string) => string.replaceAllMapped(new RegExp(r"\d+"), (m) { - var digits = m[0]; - return new String.fromCharCodes([0x30, int.parse(digits), digits.length]); - }); + replaceNumbers(String string) => + string.replaceAllMapped(new RegExp(r"\d+"), (m) { + var digits = m[0]; + return new String.fromCharCodes( + [0x30, int.parse(digits), digits.length]); + }); test("compareNatural", () { expect(sortedBy(compareNatural), - sortedBy((a, b) => replaceNumbers(a).compareTo(replaceNumbers(b)))); + sortedBy((a, b) => replaceNumbers(a).compareTo(replaceNumbers(b)))); }); test("compareAsciiLowerCaseNatural", () { - expect(sortedBy(compareAsciiLowerCaseNatural), - sortedBy((a, b) { - int delta = replaceNumbers(a.toLowerCase()).compareTo( - replaceNumbers(b.toLowerCase())); - if (delta != 0) return delta; - if (a == b) return 0; - return a.compareTo(b); - })); + expect(sortedBy(compareAsciiLowerCaseNatural), sortedBy((a, b) { + int delta = replaceNumbers(a.toLowerCase()) + .compareTo(replaceNumbers(b.toLowerCase())); + if (delta != 0) return delta; + if (a == b) return 0; + return a.compareTo(b); + })); }); test("compareAsciiUpperCaseNatural", () { - expect(sortedBy(compareAsciiUpperCaseNatural), - sortedBy((a, b) { - int delta = replaceNumbers(a.toUpperCase()).compareTo( - replaceNumbers(b.toUpperCase())); - if (delta != 0) return delta; - if (a == b) return 0; - return a.compareTo(b); - })); + expect(sortedBy(compareAsciiUpperCaseNatural), sortedBy((a, b) { + int delta = replaceNumbers(a.toUpperCase()) + .compareTo(replaceNumbers(b.toUpperCase())); + if (delta != 0) return delta; + if (a == b) return 0; + return a.compareTo(b); + })); }); } diff --git a/pkgs/collection/test/equality_set_test.dart b/pkgs/collection/test/equality_set_test.dart index 1b20684b..a326b31a 100644 --- a/pkgs/collection/test/equality_set_test.dart +++ b/pkgs/collection/test/equality_set_test.dart @@ -35,8 +35,8 @@ void main() { var list5 = [1, 2, 3]; var list6 = [1, 2, 3]; - var set = new EqualitySet.from(const IterableEquality(), - [list1, list2, list3, list4, list5, list6]); + var set = new EqualitySet.from( + const IterableEquality(), [list1, list2, list3, list4, list5, list6]); expect(set, contains(same(list1))); expect(set, contains(same(list2))); diff --git a/pkgs/collection/test/equality_test.dart b/pkgs/collection/test/equality_test.dart index bdf87111..f407fabf 100644 --- a/pkgs/collection/test/equality_test.dart +++ b/pkgs/collection/test/equality_test.dart @@ -32,31 +32,27 @@ main() { }); test("ListEquality", () { - expect(const ListEquality().equals(list1, list2), - isTrue); + expect(const ListEquality().equals(list1, list2), isTrue); Equality listId = const ListEquality(const IdentityEquality()); expect(listId.equals(list1, list2), isFalse); }); test("ListInequality length", () { var list4 = [o(1), o(2), o(3), o(4), o(5), o(6)]; - expect(const ListEquality().equals(list1, list4), - isFalse); + expect(const ListEquality().equals(list1, list4), isFalse); expect(const ListEquality(const IdentityEquality()).equals(list1, list4), - isFalse); + isFalse); }); test("ListInequality value", () { var list5 = [o(1), o(2), o(3), o(4), o(6)]; - expect(const ListEquality().equals(list1, list5), - isFalse); + expect(const ListEquality().equals(list1, list5), isFalse); expect(const ListEquality(const IdentityEquality()).equals(list1, list5), - isFalse); + isFalse); }); test("UnorderedIterableEquality", () { - expect(const UnorderedIterableEquality().equals(list1, list3), - isTrue); + expect(const UnorderedIterableEquality().equals(list1, list3), isTrue); Equality uniterId = const UnorderedIterableEquality(const IdentityEquality()); expect(uniterId.equals(list1, list3), isFalse); @@ -64,20 +60,20 @@ main() { test("UnorderedIterableInequality length", () { var list6 = [o(1), o(3), o(5), o(4), o(2), o(1)]; - expect(const UnorderedIterableEquality().equals(list1, list6), - isFalse); - expect(const UnorderedIterableEquality(const IdentityEquality()) - .equals(list1, list6), - isFalse); + expect(const UnorderedIterableEquality().equals(list1, list6), isFalse); + expect( + const UnorderedIterableEquality(const IdentityEquality()) + .equals(list1, list6), + isFalse); }); test("UnorderedIterableInequality values", () { var list7 = [o(1), o(3), o(5), o(4), o(6)]; - expect(const UnorderedIterableEquality().equals(list1, list7), - isFalse); - expect(const UnorderedIterableEquality(const IdentityEquality()) - .equals(list1, list7), - isFalse); + expect(const UnorderedIterableEquality().equals(list1, list7), isFalse); + expect( + const UnorderedIterableEquality(const IdentityEquality()) + .equals(list1, list7), + isFalse); }); test("SetEquality", () { @@ -92,26 +88,36 @@ main() { var list8 = [o(1), o(3), o(5), o(4), o(2), o(6)]; var set1 = new HashSet.from(list1); var set2 = new LinkedHashSet.from(list8); - expect(const SetEquality().equals(set1, set2), - isFalse); + expect(const SetEquality().equals(set1, set2), isFalse); expect(const SetEquality(const IdentityEquality()).equals(set1, set2), - isFalse); + isFalse); }); test("SetInequality value", () { var list7 = [o(1), o(3), o(5), o(4), o(6)]; var set1 = new HashSet.from(list1); var set2 = new LinkedHashSet.from(list7); - expect(const SetEquality().equals(set1, set2), - isFalse); + expect(const SetEquality().equals(set1, set2), isFalse); expect(const SetEquality(const IdentityEquality()).equals(set1, set2), - isFalse); + isFalse); }); - var map1a = {"x": [o(1), o(2), o(3)], "y": [true, false, null]}; - var map1b = {"x": [o(4), o(5), o(6)], "y": [false, true, null]}; - var map2a = {"x": [o(3), o(2), o(1)], "y": [false, true, null]}; - var map2b = {"x": [o(6), o(5), o(4)], "y": [null, false, true]}; + var map1a = { + "x": [o(1), o(2), o(3)], + "y": [true, false, null] + }; + var map1b = { + "x": [o(4), o(5), o(6)], + "y": [false, true, null] + }; + var map2a = { + "x": [o(3), o(2), o(1)], + "y": [false, true, null] + }; + var map2b = { + "x": [o(6), o(5), o(4)], + "y": [null, false, true] + }; var l1 = [map1a, map1b]; var l2 = [map2a, map2b]; var s1 = new Set.from(l1); @@ -119,46 +125,29 @@ main() { test("RecursiveEquality", () { const unordered = const UnorderedIterableEquality(); - expect(unordered.equals(map1a["x"], map2a["x"]), - isTrue); - expect(unordered.equals(map1a["y"], map2a["y"]), - isTrue); - expect(unordered.equals(map1b["x"], map2b["x"]), - isTrue); - expect(unordered.equals(map1b["y"], map2b["y"]), - isTrue); + expect(unordered.equals(map1a["x"], map2a["x"]), isTrue); + expect(unordered.equals(map1a["y"], map2a["y"]), isTrue); + expect(unordered.equals(map1b["x"], map2b["x"]), isTrue); + expect(unordered.equals(map1b["y"], map2b["y"]), isTrue); const mapval = const MapEquality(values: unordered); - expect( - mapval.equals(map1a, map2a), - isTrue); - expect(mapval.equals(map1b, map2b), - isTrue); + expect(mapval.equals(map1a, map2a), isTrue); + expect(mapval.equals(map1b, map2b), isTrue); const listmapval = const ListEquality(mapval); - expect(listmapval.equals(l1, l2), - isTrue); + expect(listmapval.equals(l1, l2), isTrue); const setmapval = const SetEquality(mapval); - expect(setmapval.equals(s1, s2), - isTrue); + expect(setmapval.equals(s1, s2), isTrue); }); test("DeepEquality", () { var colleq = const DeepCollectionEquality.unordered(); - expect(colleq.equals(map1a["x"], map2a["x"]), - isTrue); - expect(colleq.equals(map1a["y"], map2a["y"]), - isTrue); - expect(colleq.equals(map1b["x"], map2b["x"]), - isTrue); - expect(colleq.equals(map1b["y"], map2b["y"]), - isTrue); - expect(colleq.equals(map1a, map2a), - isTrue); - expect(colleq.equals(map1b, map2b), - isTrue); - expect(colleq.equals(l1, l2), - isTrue); - expect(colleq.equals(s1, s2), - isTrue); + expect(colleq.equals(map1a["x"], map2a["x"]), isTrue); + expect(colleq.equals(map1a["y"], map2a["y"]), isTrue); + expect(colleq.equals(map1b["x"], map2b["x"]), isTrue); + expect(colleq.equals(map1b["y"], map2b["y"]), isTrue); + expect(colleq.equals(map1a, map2a), isTrue); + expect(colleq.equals(map1b, map2b), isTrue); + expect(colleq.equals(l1, l2), isTrue); + expect(colleq.equals(s1, s2), isTrue); }); test("CaseInsensitiveEquality", () { @@ -177,22 +166,15 @@ main() { }); group("EqualityBy should use a derived value for ", () { - var firstEquality = new EqualityBy, String>( - (e) => e.first); + var firstEquality = new EqualityBy, String>((e) => e.first); var firstInsensitiveEquality = new EqualityBy, String>( (e) => e.first, const CaseInsensitiveEquality()); var firstObjectEquality = new EqualityBy, Object>( (e) => e.first, const IterableEquality()); test("equality", () { - expect( - firstEquality.equals( - ["foo", "foo"], ["foo", "bar"]), - isTrue); - expect( - firstEquality.equals( - ["foo", "foo"], ["bar", "bar"]), - isFalse); + expect(firstEquality.equals(["foo", "foo"], ["foo", "bar"]), isTrue); + expect(firstEquality.equals(["foo", "foo"], ["bar", "bar"]), isFalse); }); test("equality with an inner equality", () { @@ -205,8 +187,7 @@ main() { }); test("hash with an inner equality", () { - expect( - firstInsensitiveEquality.hash(["fOo"]), + expect(firstInsensitiveEquality.hash(["fOo"]), const CaseInsensitiveEquality().hash("foo")); }); @@ -231,6 +212,6 @@ class Element implements Comparable { final Comparable id; const Element(this.id); int get hashCode => id.hashCode; - bool operator==(Object other) => other is Element && id == other.id; + bool operator ==(Object other) => other is Element && id == other.id; int compareTo(other) => id.compareTo(other.id); } diff --git a/pkgs/collection/test/functions_test.dart b/pkgs/collection/test/functions_test.dart index 8eeba0a6..d75f8cfc 100644 --- a/pkgs/collection/test/functions_test.dart +++ b/pkgs/collection/test/functions_test.dart @@ -62,7 +62,8 @@ void main() { }); test("uses the callback to merge values", () { - expect(mergeMaps({"foo": 1, "bar": 2}, {"bar": 3, "baz": 4}, + expect( + mergeMaps({"foo": 1, "bar": 2}, {"bar": 3, "baz": 4}, value: (value1, value2) => value1 + value2), equals({"foo": 1, "bar": 5, "baz": 4})); }); @@ -76,7 +77,11 @@ void main() { test("groups elements by the function's return value", () { expect( groupBy(["foo", "bar", "baz", "bop", "qux"], (string) => string[1]), - equals({"o": ["foo", "bop"], "a": ["bar", "baz"], "u": ["qux"]})); + equals({ + "o": ["foo", "bop"], + "a": ["bar", "baz"], + "u": ["qux"] + })); }); }); @@ -88,20 +93,29 @@ void main() { isNull); }); - test("returns the element for which the ordering function returns the " + test( + "returns the element for which the ordering function returns the " "smallest value", () { expect( - minBy( - [{"foo": 3}, {"foo": 5}, {"foo": 4}, {"foo": 1}, {"foo": 2}], - (map) => map["foo"]), + minBy([ + {"foo": 3}, + {"foo": 5}, + {"foo": 4}, + {"foo": 1}, + {"foo": 2} + ], (map) => map["foo"]), equals({"foo": 1})); }); test("uses a custom comparator if provided", () { expect( - minBy( - [{"foo": 3}, {"foo": 5}, {"foo": 4}, {"foo": 1}, {"foo": 2}], - (map) => map, + minBy([ + {"foo": 3}, + {"foo": 5}, + {"foo": 4}, + {"foo": 1}, + {"foo": 2} + ], (map) => map, compare: (map1, map2) => map1["foo"].compareTo(map2["foo"])), equals({"foo": 1})); }); @@ -115,20 +129,29 @@ void main() { isNull); }); - test("returns the element for which the ordering function returns the " + test( + "returns the element for which the ordering function returns the " "largest value", () { expect( - maxBy( - [{"foo": 3}, {"foo": 5}, {"foo": 4}, {"foo": 1}, {"foo": 2}], - (map) => map["foo"]), + maxBy([ + {"foo": 3}, + {"foo": 5}, + {"foo": 4}, + {"foo": 1}, + {"foo": 2} + ], (map) => map["foo"]), equals({"foo": 5})); }); test("uses a custom comparator if provided", () { expect( - maxBy( - [{"foo": 3}, {"foo": 5}, {"foo": 4}, {"foo": 1}, {"foo": 2}], - (map) => map, + maxBy([ + {"foo": 3}, + {"foo": 5}, + {"foo": 4}, + {"foo": 1}, + {"foo": 2} + ], (map) => map, compare: (map1, map2) => map1["foo"].compareTo(map2["foo"])), equals({"foo": 5})); }); @@ -140,45 +163,51 @@ void main() { }); test("returns the input when there are no transitive connections", () { - expect(transitiveClosure({ - "foo": ["bar"], - "bar": [], - "bang": ["qux", "zap"], - "qux": [], - "zap": [] - }), equals({ - "foo": ["bar"], - "bar": [], - "bang": ["qux", "zap"], - "qux": [], - "zap": [] - })); + expect( + transitiveClosure({ + "foo": ["bar"], + "bar": [], + "bang": ["qux", "zap"], + "qux": [], + "zap": [] + }), + equals({ + "foo": ["bar"], + "bar": [], + "bang": ["qux", "zap"], + "qux": [], + "zap": [] + })); }); test("flattens transitive connections", () { - expect(transitiveClosure({ - "qux": [], - "bar": ["baz"], - "baz": ["qux"], - "foo": ["bar"] - }), equals({ - "foo": ["bar", "baz", "qux"], - "bar": ["baz", "qux"], - "baz": ["qux"], - "qux": [] - })); + expect( + transitiveClosure({ + "qux": [], + "bar": ["baz"], + "baz": ["qux"], + "foo": ["bar"] + }), + equals({ + "foo": ["bar", "baz", "qux"], + "bar": ["baz", "qux"], + "baz": ["qux"], + "qux": [] + })); }); test("handles loops", () { - expect(transitiveClosure({ - "foo": ["bar"], - "bar": ["baz"], - "baz": ["foo"] - }), equals({ - "foo": ["bar", "baz", "foo"], - "bar": ["baz", "foo", "bar"], - "baz": ["foo", "bar", "baz"] - })); + expect( + transitiveClosure({ + "foo": ["bar"], + "bar": ["baz"], + "baz": ["foo"] + }), + equals({ + "foo": ["bar", "baz", "foo"], + "bar": ["baz", "foo", "bar"], + "baz": ["foo", "bar", "baz"] + })); }); }); @@ -188,90 +217,116 @@ void main() { }); test("returns one set for a singleton graph", () { - expect(stronglyConnectedComponents({"a": []}), - equals([new Set.from(["a"])])); + expect( + stronglyConnectedComponents({"a": []}), + equals([ + new Set.from(["a"]) + ])); }); test("returns two sets for a two-element tree", () { - expect(stronglyConnectedComponents({"a": ["b"], "b": []}), - equals([new Set.from(["a"]), new Set.from(["b"])])); + expect( + stronglyConnectedComponents({ + "a": ["b"], + "b": [] + }), + equals([ + new Set.from(["a"]), + new Set.from(["b"]) + ])); }); test("returns one set for a two-element loop", () { - expect(stronglyConnectedComponents({"a": ["b"], "b": ["a"]}), - equals([new Set.from(["a", "b"])])); + expect( + stronglyConnectedComponents({ + "a": ["b"], + "b": ["a"] + }), + equals([ + new Set.from(["a", "b"]) + ])); }); test("returns individual vertices for a tree", () { - expect(stronglyConnectedComponents({ - "foo": ["bar"], - "bar": ["baz", "bang"], - "baz": ["qux"], - "bang": ["zap"], - "qux": [], - "zap": [] - }), equals([ - // This is expected to return *a* topological ordering, but this isn't - // the only valid one. If the function implementation changes in the - // future, this test may need to be updated. - new Set.from(["foo"]), - new Set.from(["bar"]), - new Set.from(["bang"]), - new Set.from(["zap"]), - new Set.from(["baz"]), - new Set.from(["qux"]) - ])); + expect( + stronglyConnectedComponents({ + "foo": ["bar"], + "bar": ["baz", "bang"], + "baz": ["qux"], + "bang": ["zap"], + "qux": [], + "zap": [] + }), + equals([ + // This is expected to return *a* topological ordering, but this isn't + // the only valid one. If the function implementation changes in the + // future, this test may need to be updated. + new Set.from(["foo"]), + new Set.from(["bar"]), + new Set.from(["bang"]), + new Set.from(["zap"]), + new Set.from(["baz"]), + new Set.from(["qux"]) + ])); }); test("returns a single set for a fully cyclic graph", () { - expect(stronglyConnectedComponents({ - "foo": ["bar"], - "bar": ["baz"], - "baz": ["bang"], - "bang": ["foo"] - }), equals([new Set.from(["foo", "bar", "baz", "bang"])])); + expect( + stronglyConnectedComponents({ + "foo": ["bar"], + "bar": ["baz"], + "baz": ["bang"], + "bang": ["foo"] + }), + equals([ + new Set.from(["foo", "bar", "baz", "bang"]) + ])); }); test("returns separate sets for each strongly connected component", () { // https://en.wikipedia.org/wiki/Strongly_connected_component#/media/File:Scc.png - expect(stronglyConnectedComponents({ - "a": ["b"], - "b": ["c", "e", "f"], - "c": ["d", "g"], - "d": ["c", "h"], - "e": ["a", "f"], - "f": ["g"], - "g": ["f"], - "h": ["g", "d"] - }), equals([ - // This is expected to return *a* topological ordering, but this isn't - // the only valid one. If the function implementation changes in the - // future, this test may need to be updated. - new Set.from(["a", "b", "e"]), - new Set.from(["c", "d", "h"]), - new Set.from(["f", "g"]), - ])); + expect( + stronglyConnectedComponents({ + "a": ["b"], + "b": ["c", "e", "f"], + "c": ["d", "g"], + "d": ["c", "h"], + "e": ["a", "f"], + "f": ["g"], + "g": ["f"], + "h": ["g", "d"] + }), + equals([ + // This is expected to return *a* topological ordering, but this isn't + // the only valid one. If the function implementation changes in the + // future, this test may need to be updated. + new Set.from(["a", "b", "e"]), + new Set.from(["c", "d", "h"]), + new Set.from(["f", "g"]), + ])); }); test("always returns components in topological order", () { - expect(stronglyConnectedComponents({ - "bar": ["baz", "bang"], - "zap": [], - "baz": ["qux"], - "qux": [], - "foo": ["bar"], - "bang": ["zap"] - }), equals([ - // This is expected to return *a* topological ordering, but this isn't - // the only valid one. If the function implementation changes in the - // future, this test may need to be updated. - new Set.from(["foo"]), - new Set.from(["bar"]), - new Set.from(["bang"]), - new Set.from(["zap"]), - new Set.from(["baz"]), - new Set.from(["qux"]) - ])); + expect( + stronglyConnectedComponents({ + "bar": ["baz", "bang"], + "zap": [], + "baz": ["qux"], + "qux": [], + "foo": ["bar"], + "bang": ["zap"] + }), + equals([ + // This is expected to return *a* topological ordering, but this isn't + // the only valid one. If the function implementation changes in the + // future, this test may need to be updated. + new Set.from(["foo"]), + new Set.from(["bar"]), + new Set.from(["bang"]), + new Set.from(["zap"]), + new Set.from(["baz"]), + new Set.from(["qux"]) + ])); }); }); } diff --git a/pkgs/collection/test/ignore_ascii_case_test.dart b/pkgs/collection/test/ignore_ascii_case_test.dart index 787f76fd..6aee4557 100644 --- a/pkgs/collection/test/ignore_ascii_case_test.dart +++ b/pkgs/collection/test/ignore_ascii_case_test.dart @@ -34,7 +34,7 @@ main() { var reason = "$s1 =?= $s2"; expect(equalsIgnoreAsciiCase(s1, s2), true, reason: reason); expect(hashIgnoreAsciiCase(s1), hashIgnoreAsciiCase(s2), - reason: reason); + reason: reason); } } @@ -44,8 +44,9 @@ main() { testChars(char1, char2, areEqual) { expect(equalsIgnoreAsciiCase(char1, char2), areEqual, - reason: "$char1 ${areEqual ? "=" : "!"}= $char2"); + reason: "$char1 ${areEqual ? "=" : "!"}= $char2"); } + for (int i = 0; i < upperCaseLetters.length; i++) { for (int j = 0; i < upperCaseLetters.length; i++) { testChars(upperCaseLetters[i], upperCaseLetters[j], i == j); @@ -55,4 +56,4 @@ main() { } } }); -} \ No newline at end of file +} diff --git a/pkgs/collection/test/iterable_zip_test.dart b/pkgs/collection/test/iterable_zip_test.dart index 06791717..d4d54841 100644 --- a/pkgs/collection/test/iterable_zip_test.dart +++ b/pkgs/collection/test/iterable_zip_test.dart @@ -15,40 +15,103 @@ Iterable iterError(Iterable base, int errorValue) { main() { test("Basic", () { - expect(new IterableZip([[1, 2, 3], [4, 5, 6], [7, 8, 9]]), - equals([[1, 4, 7], [2, 5, 8], [3, 6, 9]])); + expect( + new IterableZip([ + [1, 2, 3], + [4, 5, 6], + [7, 8, 9] + ]), + equals([ + [1, 4, 7], + [2, 5, 8], + [3, 6, 9] + ])); }); test("Uneven length 1", () { - expect(new IterableZip([[1, 2, 3, 99, 100], [4, 5, 6], [7, 8, 9]]), - equals([[1, 4, 7], [2, 5, 8], [3, 6, 9]])); + expect( + new IterableZip([ + [1, 2, 3, 99, 100], + [4, 5, 6], + [7, 8, 9] + ]), + equals([ + [1, 4, 7], + [2, 5, 8], + [3, 6, 9] + ])); }); test("Uneven length 2", () { - expect(new IterableZip([[1, 2, 3], [4, 5, 6, 99, 100], [7, 8, 9]]), - equals([[1, 4, 7], [2, 5, 8], [3, 6, 9]])); + expect( + new IterableZip([ + [1, 2, 3], + [4, 5, 6, 99, 100], + [7, 8, 9] + ]), + equals([ + [1, 4, 7], + [2, 5, 8], + [3, 6, 9] + ])); }); test("Uneven length 3", () { - expect(new IterableZip([[1, 2, 3], [4, 5, 6], [7, 8, 9, 99, 100]]), - equals([[1, 4, 7], [2, 5, 8], [3, 6, 9]])); + expect( + new IterableZip([ + [1, 2, 3], + [4, 5, 6], + [7, 8, 9, 99, 100] + ]), + equals([ + [1, 4, 7], + [2, 5, 8], + [3, 6, 9] + ])); }); test("Uneven length 3", () { - expect(new IterableZip([[1, 2, 3, 98], [4, 5, 6], [7, 8, 9, 99, 100]]), - equals([[1, 4, 7], [2, 5, 8], [3, 6, 9]])); + expect( + new IterableZip([ + [1, 2, 3, 98], + [4, 5, 6], + [7, 8, 9, 99, 100] + ]), + equals([ + [1, 4, 7], + [2, 5, 8], + [3, 6, 9] + ])); }); test("Empty 1", () { - expect(new IterableZip([[], [4, 5, 6], [7, 8, 9]]), equals([])); + expect( + new IterableZip([ + [], + [4, 5, 6], + [7, 8, 9] + ]), + equals([])); }); test("Empty 2", () { - expect(new IterableZip([[1, 2, 3], [], [7, 8, 9]]), equals([])); + expect( + new IterableZip([ + [1, 2, 3], + [], + [7, 8, 9] + ]), + equals([])); }); test("Empty 3", () { - expect(new IterableZip([[1, 2, 3], [4, 5, 6], []]), equals([])); + expect( + new IterableZip([ + [1, 2, 3], + [4, 5, 6], + [] + ]), + equals([])); }); test("Empty source", () { @@ -56,59 +119,98 @@ main() { }); test("Single Source", () { - expect(new IterableZip([[1, 2, 3]]), equals([[1], [2], [3]])); + expect( + new IterableZip([ + [1, 2, 3] + ]), + equals([ + [1], + [2], + [3] + ])); }); test("Not-lists", () { // Use other iterables than list literals. Iterable it1 = [1, 2, 3, 4, 5, 6].where((x) => x < 4); Set it2 = new LinkedHashSet()..add(4)..add(5)..add(6); - Iterable it3 = (new LinkedHashMap()..[7] = 0 ..[8] = 0 ..[9] = 0).keys; + Iterable it3 = (new LinkedHashMap() + ..[7] = 0 + ..[8] = 0 + ..[9] = 0) + .keys; Iterable allIts = new Iterable.generate(3, (i) => [it1, it2, it3][i]); - expect(new IterableZip(allIts), - equals([[1, 4, 7], [2, 5, 8], [3, 6, 9]])); + expect( + new IterableZip(allIts), + equals([ + [1, 4, 7], + [2, 5, 8], + [3, 6, 9] + ])); }); test("Error 1", () { - expect(() => new IterableZip([iterError([1, 2, 3], 2), - [4, 5, 6], - [7, 8, 9]]).toList(), - throwsA(equals("BAD"))); + expect( + () => new IterableZip([ + iterError([1, 2, 3], 2), + [4, 5, 6], + [7, 8, 9] + ]).toList(), + throwsA(equals("BAD"))); }); test("Error 2", () { - expect(() => new IterableZip([[1, 2, 3], - iterError([4, 5, 6], 5), - [7, 8, 9]]).toList(), - throwsA(equals("BAD"))); + expect( + () => new IterableZip([ + [1, 2, 3], + iterError([4, 5, 6], 5), + [7, 8, 9] + ]).toList(), + throwsA(equals("BAD"))); }); test("Error 3", () { - expect(() => new IterableZip([[1, 2, 3], - [4, 5, 6], - iterError([7, 8, 9], 8)]).toList(), - throwsA(equals("BAD"))); + expect( + () => new IterableZip([ + [1, 2, 3], + [4, 5, 6], + iterError([7, 8, 9], 8) + ]).toList(), + throwsA(equals("BAD"))); }); test("Error at end", () { - expect(() => new IterableZip([[1, 2, 3], - iterError([4, 5, 6], 6), - [7, 8, 9]]).toList(), - throwsA(equals("BAD"))); + expect( + () => new IterableZip([ + [1, 2, 3], + iterError([4, 5, 6], 6), + [7, 8, 9] + ]).toList(), + throwsA(equals("BAD"))); }); test("Error before first end", () { - expect(() => new IterableZip([iterError([1, 2, 3, 4], 4), - [4, 5, 6], - [7, 8, 9]]).toList(), - throwsA(equals("BAD"))); + expect( + () => new IterableZip([ + iterError([1, 2, 3, 4], 4), + [4, 5, 6], + [7, 8, 9] + ]).toList(), + throwsA(equals("BAD"))); }); test("Error after first end", () { - expect(new IterableZip([[1, 2, 3], - [4, 5, 6], - iterError([7, 8, 9, 10], 10)]), - equals([[1, 4, 7], [2, 5, 8], [3, 6, 9]])); + expect( + new IterableZip([ + [1, 2, 3], + [4, 5, 6], + iterError([7, 8, 9, 10], 10) + ]), + equals([ + [1, 4, 7], + [2, 5, 8], + [3, 6, 9] + ])); }); } diff --git a/pkgs/collection/test/priority_queue_test.dart b/pkgs/collection/test/priority_queue_test.dart index 3131b15e..0e493e5a 100644 --- a/pkgs/collection/test/priority_queue_test.dart +++ b/pkgs/collection/test/priority_queue_test.dart @@ -16,8 +16,8 @@ void main() { void testDefault() { test('new PriorityQueue() returns a HeapPriorityQueue', () { - expect(new PriorityQueue(), - new isInstanceOf>()); + expect( + new PriorityQueue(), new isInstanceOf>()); }); testInt(() => new PriorityQueue()); testCustom((comparator) => new PriorityQueue(comparator)); @@ -25,27 +25,19 @@ void testDefault() { void testInt(PriorityQueue create()) { for (int count in [1, 5, 127, 128]) { - testQueue("int:$count", - create, - new List.generate(count, (x) => x), - count); + testQueue( + "int:$count", create, new List.generate(count, (x) => x), count); } } void testCustom(PriorityQueue create(comparator)) { for (int count in [1, 5, 127, 128]) { - testQueue("Custom:$count/null", - () => create(null), - new List.generate(count, (x) => new C(x)), - new C(count)); - testQueue("Custom:$count/compare", - () => create(compare), - new List.generate(count, (x) => new C(x)), - new C(count)); - testQueue("Custom:$count/compareNeg", - () => create(compareNeg), - new List.generate(count, (x) => new C(count - x)), - new C(0)); + testQueue("Custom:$count/null", () => create(null), + new List.generate(count, (x) => new C(x)), new C(count)); + testQueue("Custom:$count/compare", () => create(compare), + new List.generate(count, (x) => new C(x)), new C(count)); + testQueue("Custom:$count/compareNeg", () => create(compareNeg), + new List.generate(count, (x) => new C(count - x)), new C(0)); } } @@ -60,8 +52,12 @@ void testQueueBody(PriorityQueue create(), List elements, notElement) { PriorityQueue q = create(); expect(q.isEmpty, isTrue); expect(q, hasLength(0)); - expect(() { q.first; }, throwsStateError); - expect(() { q.removeFirst(); }, throwsStateError); + expect(() { + q.first; + }, throwsStateError); + expect(() { + q.removeFirst(); + }, throwsStateError); // Tests removeFirst, first, contains, toList and toSet. void testElements() { @@ -117,6 +113,7 @@ void testQueueBody(PriorityQueue create(), List elements, notElement) { if (mid + 1 < max) addRec(mid + 1, max); if (mid > min) addRec(min, mid); } + addRec(0, elements.length); testElements(); @@ -159,7 +156,6 @@ void testQueueBody(PriorityQueue create(), List elements, notElement) { expect(q.isEmpty, isTrue); } - // Custom class. // Class is comparable, comparators match normal and inverse order. int compare(C c1, C c2) => c1.value - c2.value; @@ -169,7 +165,7 @@ class C implements Comparable { final int value; const C(this.value); int get hashCode => value; - bool operator==(Object other) => other is C && value == other.value; + bool operator ==(Object other) => other is C && value == other.value; int compareTo(C other) => value - other.value; String toString() => "C($value)"; } diff --git a/pkgs/collection/test/queue_list_test.dart b/pkgs/collection/test/queue_list_test.dart index deee459d..9e6d1992 100644 --- a/pkgs/collection/test/queue_list_test.dart +++ b/pkgs/collection/test/queue_list_test.dart @@ -69,7 +69,8 @@ void main() { expect(queue, equals([2, 3])); }); - test("removes an element from the beginning of a queue with an internal " + test( + "removes an element from the beginning of a queue with an internal " "gap", () { var queue = withInternalGap(); expect(queue.removeFirst(), equals(1)); @@ -167,7 +168,8 @@ void main() { expect(() => queue[-1], throwsRangeError); }); - test("throws a RangeError if the index is greater than or equal to the " + test( + "throws a RangeError if the index is greater than or equal to the " "length", () { var queue = new QueueList.from([1, 2, 3]); expect(() => queue[3], throwsRangeError); @@ -202,7 +204,8 @@ void main() { }, throwsRangeError); }); - test("throws a RangeError if the index is greater than or equal to the " + test( + "throws a RangeError if the index is greater than or equal to the " "length", () { var queue = new QueueList.from([1, 2, 3]); expect(() { @@ -271,5 +274,5 @@ QueueList withInternalGap() { /// Returns a matcher that expects that a closure throws a /// [ConcurrentModificationError]. -final throwsConcurrentModificationError = throwsA( - new isInstanceOf()); +final throwsConcurrentModificationError = + throwsA(new isInstanceOf()); diff --git a/pkgs/collection/test/typed_wrapper/iterable_test.dart b/pkgs/collection/test/typed_wrapper/iterable_test.dart index ff044da9..b20dd27c 100644 --- a/pkgs/collection/test/typed_wrapper/iterable_test.dart +++ b/pkgs/collection/test/typed_wrapper/iterable_test.dart @@ -13,12 +13,12 @@ void main() { var emptyWrapper; var singleWrapper; setUp(() { - wrapper = DelegatingIterable.typed/**/( - [1, 2, 3, 4, 5].map((i) => i)); - emptyWrapper = DelegatingIterable.typed/**/( - [].map((i) => i)); - singleWrapper = DelegatingIterable.typed/**/( - [1].map((i) => i)); + wrapper = DelegatingIterable + .typed/**/([1, 2, 3, 4, 5].map((i) => i)); + emptyWrapper = + DelegatingIterable.typed/**/([].map((i) => i)); + singleWrapper = + DelegatingIterable.typed/**/([1].map((i) => i)); }); test("any()", () { @@ -130,8 +130,8 @@ void main() { test("reduce()", () { expect(wrapper.reduce((value, i) => value + i), equals(15)); - expect(() => emptyWrapper.reduce((value, i) => value + i), - throwsStateError); + expect( + () => emptyWrapper.reduce((value, i) => value + i), throwsStateError); }); test("single", () { @@ -142,8 +142,8 @@ void main() { test("singleWhere()", () { expect(() => wrapper.singleWhere((i) => i.isOdd), throwsStateError); expect(singleWrapper.singleWhere((i) => i.isOdd), equals(1)); - expect(() => singleWrapper.singleWhere((i) => i.isEven), - throwsStateError); + expect( + () => singleWrapper.singleWhere((i) => i.isEven), throwsStateError); }); test("skip()", () { @@ -171,8 +171,8 @@ void main() { test("toList()", () { expect(wrapper.toList(), equals([1, 2, 3, 4, 5])); expect(wrapper.toList(growable: false), equals([1, 2, 3, 4, 5])); - expect(() => wrapper.toList(growable: false).add(6), - throwsUnsupportedError); + expect( + () => wrapper.toList(growable: false).add(6), throwsUnsupportedError); }); test("toSet()", () { @@ -198,8 +198,8 @@ void main() { setUp(() { wrapper = DelegatingIterable.typed/**/( ["foo", "bar", "baz"].map((element) => element)); - singleWrapper = DelegatingIterable.typed/**/( - ["foo"].map((element) => element)); + singleWrapper = DelegatingIterable + .typed/**/(["foo"].map((element) => element)); }); group("throws a CastError for", () { @@ -232,7 +232,8 @@ void main() { }); test("fold()", () { - expect(() => wrapper.fold(null, expectAsync2((_, __) => null, count: 0)), + expect( + () => wrapper.fold(null, expectAsync2((_, __) => null, count: 0)), throwsCastError); }); diff --git a/pkgs/collection/test/typed_wrapper/map_test.dart b/pkgs/collection/test/typed_wrapper/map_test.dart index 30c64263..3ebf02b6 100644 --- a/pkgs/collection/test/typed_wrapper/map_test.dart +++ b/pkgs/collection/test/typed_wrapper/map_test.dart @@ -29,14 +29,14 @@ void main() { expect(wrapper, equals({"foo": 5, "bar": 2, "baz": 3, "bang": 4})); wrapper["qux"] = 6; - expect(wrapper, - equals({"foo": 5, "bar": 2, "baz": 3, "bang": 4, "qux": 6})); + expect( + wrapper, equals({"foo": 5, "bar": 2, "baz": 3, "bang": 4, "qux": 6})); }); test("addAll()", () { wrapper.addAll({"bar": 5, "qux": 6}); - expect(wrapper, - equals({"foo": 1, "bar": 5, "baz": 3, "bang": 4, "qux": 6})); + expect( + wrapper, equals({"foo": 1, "bar": 5, "baz": 3, "bang": 4, "qux": 6})); }); test("clear()", () { @@ -59,8 +59,14 @@ void main() { test("forEach()", () { var results = []; wrapper.forEach((key, value) => results.add([key, value])); - expect(results, - unorderedEquals([["foo", 1], ["bar", 2], ["baz", 3], ["bang", 4]])); + expect( + results, + unorderedEquals([ + ["foo", 1], + ["bar", 2], + ["baz", 3], + ["bang", 4] + ])); emptyWrapper.forEach(expectAsync2((_, __) {}, count: 0)); }); @@ -90,8 +96,8 @@ void main() { equals(1)); expect(wrapper.putIfAbsent("qux", () => 6), equals(6)); - expect(wrapper, - equals({"foo": 1, "bar": 2, "baz": 3, "bang": 4, "qux": 6})); + expect( + wrapper, equals({"foo": 1, "bar": 2, "baz": 3, "bang": 4, "qux": 6})); }); test("remove()", () { @@ -108,14 +114,16 @@ void main() { }); test("toString()", () { - expect(wrapper.toString(), allOf([ - startsWith("{"), - contains("foo: 1"), - contains("bar: 2"), - contains("baz: 3"), - contains("bang: 4"), - endsWith("}") - ])); + expect( + wrapper.toString(), + allOf([ + startsWith("{"), + contains("foo: 1"), + contains("bar: 2"), + contains("baz: 3"), + contains("bang: 4"), + endsWith("}") + ])); }); }); @@ -203,14 +211,16 @@ void main() { }); test("toString()", () { - expect(wrapper.toString(), allOf([ - startsWith("{"), - contains("1: 1"), - contains("2: 2"), - contains("3: 3"), - contains("4: 4"), - endsWith("}") - ])); + expect( + wrapper.toString(), + allOf([ + startsWith("{"), + contains("1: 1"), + contains("2: 2"), + contains("3: 3"), + contains("4: 4"), + endsWith("}") + ])); }); }); }, skip: "Re-enable this when test can run DDC (test#414)."); @@ -303,12 +313,14 @@ void main() { }); test("toString()", () { - expect(wrapper.toString(), allOf([ - startsWith("{"), - contains("foo: bar"), - contains("baz: bang"), - endsWith("}") - ])); + expect( + wrapper.toString(), + allOf([ + startsWith("{"), + contains("foo: bar"), + contains("baz: bang"), + endsWith("}") + ])); }); }); }, skip: "Re-enable this when test can run DDC (test#414)."); diff --git a/pkgs/collection/test/typed_wrapper/queue_test.dart b/pkgs/collection/test/typed_wrapper/queue_test.dart index 4eb68b36..256280d9 100644 --- a/pkgs/collection/test/typed_wrapper/queue_test.dart +++ b/pkgs/collection/test/typed_wrapper/queue_test.dart @@ -14,8 +14,8 @@ void main() { var wrapper; var emptyWrapper; setUp(() { - wrapper = DelegatingQueue.typed/**/( - new Queue.from([1, 2, 3, 4, 5])); + wrapper = DelegatingQueue + .typed/**/(new Queue.from([1, 2, 3, 4, 5])); emptyWrapper = DelegatingQueue.typed/**/(new Queue()); }); diff --git a/pkgs/collection/test/typed_wrapper/set_test.dart b/pkgs/collection/test/typed_wrapper/set_test.dart index 7667442a..fdbbf8ed 100644 --- a/pkgs/collection/test/typed_wrapper/set_test.dart +++ b/pkgs/collection/test/typed_wrapper/set_test.dart @@ -11,8 +11,8 @@ void main() { group("with valid types, forwards", () { var wrapper; setUp(() { - wrapper = DelegatingSet.typed/**/( - new Set.from([1, 2, 3, 4, 5])); + wrapper = + DelegatingSet.typed/**/(new Set.from([1, 2, 3, 4, 5])); }); test("add()", () { diff --git a/pkgs/collection/test/unmodifiable_collection_test.dart b/pkgs/collection/test/unmodifiable_collection_test.dart index cdb51017..91ad8ad2 100644 --- a/pkgs/collection/test/unmodifiable_collection_test.dart +++ b/pkgs/collection/test/unmodifiable_collection_test.dart @@ -94,8 +94,8 @@ void testIterable(Iterable original, Iterable wrapped, String name) { }); test("$name - expand", () { - expect(wrapped.expand((x) => [x, x]), - equals(original.expand((x) => [x, x]))); + expect( + wrapped.expand((x) => [x, x]), equals(original.expand((x) => [x, x]))); }); test("$name - first", () { @@ -111,21 +111,25 @@ void testIterable(Iterable original, Iterable wrapped, String name) { expect(() => wrapped.firstWhere((_) => true), throws); } else { expect(wrapped.firstWhere((_) => true), - equals(original.firstWhere((_) => true))); + equals(original.firstWhere((_) => true))); } expect(() => wrapped.firstWhere((_) => false), throws); }); test("$name - fold", () { expect(wrapped.fold(0, (x, y) => x + y), - equals(original.fold(0, (x, y) => x + y))); + equals(original.fold(0, (x, y) => x + y))); }); test("$name - forEach", () { int wrapCtr = 0; int origCtr = 0; - wrapped.forEach((x) { wrapCtr += x; }); - original.forEach((x) { origCtr += x; }); + wrapped.forEach((x) { + wrapCtr += x; + }); + original.forEach((x) { + origCtr += x; + }); expect(wrapCtr, equals(origCtr)); }); @@ -165,7 +169,7 @@ void testIterable(Iterable original, Iterable wrapped, String name) { expect(() => wrapped.lastWhere((_) => true), throws); } else { expect(wrapped.lastWhere((_) => true), - equals(original.lastWhere((_) => true))); + equals(original.lastWhere((_) => true))); } expect(() => wrapped.lastWhere((_) => false), throws); }); @@ -175,8 +179,7 @@ void testIterable(Iterable original, Iterable wrapped, String name) { }); test("$name - map", () { - expect(wrapped.map((x) => "[$x]"), - equals(original.map((x) => "[$x]"))); + expect(wrapped.map((x) => "[$x]"), equals(original.map((x) => "[$x]"))); }); test("$name - reduce", () { @@ -184,7 +187,7 @@ void testIterable(Iterable original, Iterable wrapped, String name) { expect(() => wrapped.reduce((x, y) => x + y), throws); } else { expect(wrapped.reduce((x, y) => x + y), - equals(original.reduce((x, y) => x + y))); + equals(original.reduce((x, y) => x + y))); } }); @@ -201,7 +204,7 @@ void testIterable(Iterable original, Iterable wrapped, String name) { expect(() => wrapped.singleWhere((_) => true), throws); } else { expect(wrapped.singleWhere((_) => true), - equals(original.singleWhere((_) => true))); + equals(original.singleWhere((_) => true))); } expect(() => wrapped.singleWhere((_) => false), throws); }); @@ -214,11 +217,11 @@ void testIterable(Iterable original, Iterable wrapped, String name) { test("$name - skipWhile", () { expect(wrapped.skipWhile((x) => true), - orderedEquals(original.skipWhile((x) => true))); + orderedEquals(original.skipWhile((x) => true))); expect(wrapped.skipWhile((x) => false), - orderedEquals(original.skipWhile((x) => false))); + orderedEquals(original.skipWhile((x) => false))); expect(wrapped.skipWhile((x) => x != 42), - orderedEquals(original.skipWhile((x) => x != 42))); + orderedEquals(original.skipWhile((x) => x != 42))); }); test("$name - take", () { @@ -229,17 +232,17 @@ void testIterable(Iterable original, Iterable wrapped, String name) { test("$name - takeWhile", () { expect(wrapped.takeWhile((x) => true), - orderedEquals(original.takeWhile((x) => true))); + orderedEquals(original.takeWhile((x) => true))); expect(wrapped.takeWhile((x) => false), - orderedEquals(original.takeWhile((x) => false))); + orderedEquals(original.takeWhile((x) => false))); expect(wrapped.takeWhile((x) => x != 42), - orderedEquals(original.takeWhile((x) => x != 42))); + orderedEquals(original.takeWhile((x) => x != 42))); }); test("$name - toList", () { expect(wrapped.toList(), orderedEquals(original.toList())); expect(wrapped.toList(growable: false), - orderedEquals(original.toList(growable: false))); + orderedEquals(original.toList(growable: false))); }); test("$name - toSet", () { @@ -247,12 +250,12 @@ void testIterable(Iterable original, Iterable wrapped, String name) { }); test("$name - where", () { - expect(wrapped.where((x) => true), - orderedEquals(original.where((x) => true))); + expect( + wrapped.where((x) => true), orderedEquals(original.where((x) => true))); expect(wrapped.where((x) => false), - orderedEquals(original.where((x) => false))); + orderedEquals(original.where((x) => false))); expect(wrapped.where((x) => x != 42), - orderedEquals(original.where((x) => x != 42))); + orderedEquals(original.where((x) => x != 42))); }); } @@ -271,7 +274,9 @@ void testReadList(List original, List wrapped, String name) { test("$name - []", () { if (original.isEmpty) { - expect(() { wrapped[0]; }, throwsRangeError); + expect(() { + wrapped[0]; + }, throwsRangeError); } else { expect(wrapped[0], equals(original[0])); } @@ -289,17 +294,16 @@ void testReadList(List original, List wrapped, String name) { int len = original.length; expect(wrapped.getRange(0, len), equals(original.getRange(0, len))); expect(wrapped.getRange(len ~/ 2, len), - equals(original.getRange(len ~/ 2, len))); - expect(wrapped.getRange(0, len ~/ 2), - equals(original.getRange(0, len ~/ 2))); + equals(original.getRange(len ~/ 2, len))); + expect( + wrapped.getRange(0, len ~/ 2), equals(original.getRange(0, len ~/ 2))); }); test("$name - sublist", () { int len = original.length; expect(wrapped.sublist(0), equals(original.sublist(0))); expect(wrapped.sublist(len ~/ 2), equals(original.sublist(len ~/ 2))); - expect(wrapped.sublist(0, len ~/ 2), - equals(original.sublist(0, len ~/ 2))); + expect(wrapped.sublist(0, len ~/ 2), equals(original.sublist(0, len ~/ 2))); }); test("$name - asMap", () { @@ -318,21 +322,25 @@ void testNoWriteList(List original, List wrapped, String name) { }); } - testThrows("$name - []= throws", () { wrapped[0] = 42; }); + testThrows("$name - []= throws", () { + wrapped[0] = 42; + }); - testThrows("$name - sort throws", () { wrapped.sort(); }); + testThrows("$name - sort throws", () { + wrapped.sort(); + }); testThrows("$name - fillRange throws", () { wrapped.fillRange(0, wrapped.length, 42); }); testThrows("$name - setRange throws", () { - wrapped.setRange(0, wrapped.length, - new Iterable.generate(wrapped.length, (i) => i)); + wrapped.setRange( + 0, wrapped.length, new Iterable.generate(wrapped.length, (i) => i)); }); testThrows("$name - setAll throws", () { - wrapped.setAll(0, new Iterable.generate(wrapped.length, (i) => i)); + wrapped.setAll(0, new Iterable.generate(wrapped.length, (i) => i)); }); } @@ -346,7 +354,9 @@ void testWriteList(List original, List wrapped, String name) { expect(original[0], equals(originalFirst + 1)); original[0] = originalFirst; } else { - expect(() { wrapped[0] = 42; }, throws); + expect(() { + wrapped[0] = 42; + }, throws); } }); @@ -459,21 +469,21 @@ void testReadSet(Set original, Set wrapped, String name) { expect(wrapped.intersection(new Set()), isEmpty); expect(wrapped.intersection(copy), unorderedEquals(original)); expect(wrapped.intersection(new Set.from([42])), - new Set.from(original.contains(42) ? [42] : [])); + new Set.from(original.contains(42) ? [42] : [])); }); test("$name - union", () { expect(wrapped.union(new Set()), unorderedEquals(original)); expect(wrapped.union(copy), unorderedEquals(original)); expect(wrapped.union(new Set.from([42])), - equals(original.union(new Set.from([42])))); + equals(original.union(new Set.from([42])))); }); test("$name - difference", () { expect(wrapped.difference(new Set()), unorderedEquals(original)); expect(wrapped.difference(copy), isEmpty); expect(wrapped.difference(new Set.from([42])), - equals(original.difference(new Set.from([42])))); + equals(original.difference(new Set.from([42])))); }); } @@ -560,8 +570,12 @@ void testReadMap(Map original, Map wrapped, String name) { test("$name forEach", () { int origCnt = 0; int wrapCnt = 0; - wrapped.forEach((k, v) { wrapCnt += 1 << k + 3 * v; }); - original.forEach((k, v) { origCnt += 1 << k + 3 * v; }); + wrapped.forEach((k, v) { + wrapCnt += 1 << k + 3 * v; + }); + original.forEach((k, v) { + origCnt += 1 << k + 3 * v; + }); expect(wrapCnt, equals(origCnt)); }); @@ -585,27 +599,27 @@ testNoChangeMap(Map original, Map wrapped, String name) { }); } - testThrows("$name operator[]= throws", () { - wrapped[0] = 42; - }); + testThrows("$name operator[]= throws", () { + wrapped[0] = 42; + }); - testThrows("$name putIfAbsent throws", () { - wrapped.putIfAbsent(0, () => 42); - }); + testThrows("$name putIfAbsent throws", () { + wrapped.putIfAbsent(0, () => 42); + }); - testThrows("$name addAll throws", () { - wrapped.addAll(new Map()..[42] = 42); - }); + testThrows("$name addAll throws", () { + wrapped.addAll(new Map()..[42] = 42); + }); - testThrows("$name addAll empty throws", () { - wrapped.addAll(new Map()); - }); + testThrows("$name addAll empty throws", () { + wrapped.addAll(new Map()); + }); - testThrows("$name remove throws", () { - wrapped.remove(0); - }); + testThrows("$name remove throws", () { + wrapped.remove(0); + }); - testThrows("$name clear throws", () { - wrapped.clear(); - }); + testThrows("$name clear throws", () { + wrapped.clear(); + }); } diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index e4889455..df26c874 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -33,14 +33,14 @@ abstract class Expector { var equals; noSuchMethod(Invocation m) => new _Equals(equals = getWrappedObject((m2) { - testInvocations(m, m2); - })); + testInvocations(m, m2); + })); // dartanalyzer complains if this method is named `toString()`, since, if it // truly overrides Object's `toString()`, it should return a String. asString() => new _Equals(equals = getWrappedObject((m2) { - testInvocations(TO_STRING_INVOCATION, m2); - })); + testInvocations(TO_STRING_INVOCATION, m2); + })); } // An object with a field called "equals", only introduced into the @@ -58,10 +58,8 @@ class SyntheticInvocation implements Invocation { final List positionalArguments; final Map namedArguments; final int _type; - const SyntheticInvocation(this.memberName, - this.positionalArguments, - this.namedArguments, - this._type); + const SyntheticInvocation(this.memberName, this.positionalArguments, + this.namedArguments, this._type); bool get isMethod => _type == METHOD; bool get isGetter => _type == GETTER; @@ -79,7 +77,7 @@ class NSM { } const TO_STRING_INVOCATION = const SyntheticInvocation( - #toString, const[], const{}, SyntheticInvocation.METHOD); + #toString, const [], const {}, SyntheticInvocation.METHOD); // LikeNSM, but has types Iterable, Set and List to allow it as // argument to DelegatingIterable/Set/List. @@ -148,8 +146,10 @@ void main() { // expectation (which doesn't have the interface implemented or // its default values). expect.firstWhere(func1, orElse: null).equals.firstWhere(func1); - expect.firstWhere(func1, orElse: func0).equals. - firstWhere(func1, orElse: func0); + expect + .firstWhere(func1, orElse: func0) + .equals + .firstWhere(func1, orElse: func0); expect.fold(null, func2).equals.fold(null, func2); expect.forEach(func1).equals.forEach(func1); expect.isEmpty.equals.isEmpty; @@ -159,8 +159,10 @@ void main() { expect.join("X").equals.join("X"); expect.last.equals.last; expect.lastWhere(func1, orElse: null).equals.lastWhere(func1); - expect.lastWhere(func1, orElse: func0).equals. - lastWhere(func1, orElse: func0); + expect + .lastWhere(func1, orElse: func0) + .equals + .lastWhere(func1, orElse: func0); expect.length.equals.length; expect.map(func1).equals.map(func1); expect.reduce(func2).equals.reduce(func2); @@ -336,17 +338,17 @@ void main() { test(".lastWhere", () { expect(set.lastWhere((element) => element is String), equals("bar")); - expect(set.lastWhere((element) => element.startsWith("f")), - equals("foo")); - expect(() => set.lastWhere((element) => element is int), - throwsStateError); + expect( + set.lastWhere((element) => element.startsWith("f")), equals("foo")); + expect( + () => set.lastWhere((element) => element is int), throwsStateError); expect(set.lastWhere((element) => element is int, orElse: () => "baz"), equals("baz")); }); test(".map", () { - expect(set.map((element) => element.substring(1)), - equals(["oo", "ar"])); + expect( + set.map((element) => element.substring(1)), equals(["oo", "ar"])); }); test(".reduce", () { @@ -357,8 +359,7 @@ void main() { test(".singleWhere", () { expect(() => set.singleWhere((element) => element == "baz"), throwsStateError); - expect(set.singleWhere((element) => element == "foo"), - "foo"); + expect(set.singleWhere((element) => element == "foo"), "foo"); expect(() => set.singleWhere((element) => element is String), throwsStateError); }); @@ -374,8 +375,7 @@ void main() { equals(["bar"])); expect(set.skipWhile((element) => element.startsWith("z")), equals(["foo", "bar"])); - expect(set.skipWhile((element) => element is String), - equals([])); + expect(set.skipWhile((element) => element is String), equals([])); }); test(".take", () { @@ -387,8 +387,7 @@ void main() { test(".takeWhile", () { expect(set.takeWhile((element) => element.startsWith("f")), equals(["foo"])); - expect(set.takeWhile((element) => element.startsWith("z")), - equals([])); + expect(set.takeWhile((element) => element.startsWith("z")), equals([])); expect(set.takeWhile((element) => element is String), equals(["foo", "bar"])); }); @@ -405,11 +404,11 @@ void main() { }); test(".where", () { - expect(set.where((element) => element.startsWith("f")), - equals(["foo"])); + expect( + set.where((element) => element.startsWith("f")), equals(["foo"])); expect(set.where((element) => element.startsWith("z")), equals([])); - expect(set.where((element) => element is String), - equals(["foo", "bar"])); + expect( + set.where((element) => element is String), equals(["foo", "bar"])); }); test(".containsAll", () { @@ -529,8 +528,8 @@ void main() { setUp(() { map = new Map(); - set = new MapValueSet(map, - (string) => string.substring(0, 1)); + set = new MapValueSet( + map, (string) => string.substring(0, 1)); }); testTwoElementSet(() { @@ -641,8 +640,8 @@ void main() { equals: (value1, value2) => value1.toLowerCase() == value2.toLowerCase(), hashCode: (value) => value.toLowerCase().hashCode); - set = new MapValueSet(map, - (string) => string.substring(0, 1)); + set = new MapValueSet( + map, (string) => string.substring(0, 1)); map["f"] = "foo"; map["B"] = "bar"; From ca07844c22fecfa14c53c31a6d411384957cb2c4 Mon Sep 17 00:00:00 2001 From: Matan Lurey Date: Tue, 16 May 2017 20:54:54 -0700 Subject: [PATCH 070/235] Replace /**/ with , bump SDK (dart-lang/collection#58) * Add travis and dartfmt. * Replace comments with generics. * Incremental dartfmt. * Chrome -> Firefox. --- pkgs/collection/.travis.yml | 2 +- pkgs/collection/lib/src/algorithms.dart | 47 ++++++------- .../lib/src/empty_unmodifiable_set.dart | 2 +- pkgs/collection/lib/src/functions.dart | 69 +++++++++---------- pkgs/collection/lib/src/priority_queue.dart | 2 +- pkgs/collection/lib/src/typed_wrappers.dart | 11 ++- .../lib/src/unmodifiable_wrappers.dart | 6 +- pkgs/collection/lib/src/utils.dart | 2 +- pkgs/collection/lib/src/wrappers.dart | 29 ++++---- pkgs/collection/pubspec.yaml | 4 +- .../test/typed_wrapper/iterable_test.dart | 18 +++-- .../test/typed_wrapper/list_test.dart | 6 +- .../test/typed_wrapper/map_test.dart | 8 +-- .../test/typed_wrapper/queue_test.dart | 8 +-- .../test/typed_wrapper/set_test.dart | 5 +- 15 files changed, 99 insertions(+), 120 deletions(-) diff --git a/pkgs/collection/.travis.yml b/pkgs/collection/.travis.yml index db953f8b..1c89de3b 100644 --- a/pkgs/collection/.travis.yml +++ b/pkgs/collection/.travis.yml @@ -8,7 +8,7 @@ cache: - $HOME/.pub-cache dart_task: - test: --platform vm - - test: --platform chrome + - test: --platform firefox -j 1 - test: --platform dartium install_dartium: true - dartanalyzer diff --git a/pkgs/collection/lib/src/algorithms.dart b/pkgs/collection/lib/src/algorithms.dart index fbf33ec9..567230c1 100644 --- a/pkgs/collection/lib/src/algorithms.dart +++ b/pkgs/collection/lib/src/algorithms.dart @@ -15,9 +15,8 @@ import "utils.dart"; /// the objects. If any object is not [Comparable], this throws a [CastError]. /// /// Returns -1 if [value] is not in the list by default. -int binarySearch/**/(List/**/ sortedList, /*=T*/ value, - {int compare(/*=T*/ a, /*=T*/ b)}) { - compare ??= defaultCompare/**/(); +int binarySearch(List sortedList, T value, {int compare(T a, T b)}) { + compare ??= defaultCompare(); int min = 0; int max = sortedList.length; while (min < max) { @@ -45,9 +44,8 @@ int binarySearch/**/(List/**/ sortedList, /*=T*/ value, /// /// Returns [sortedList.length] if all the items in [sortedList] compare less /// than [value]. -int lowerBound/**/(List/**/ sortedList, /*=T*/ value, - {int compare(/*=T*/ a, /*=T*/ b)}) { - compare ??= defaultCompare/**/(); +int lowerBound(List sortedList, T value, {int compare(T a, T b)}) { + compare ??= defaultCompare(); int min = 0; int max = sortedList.length; while (min < max) { @@ -109,11 +107,11 @@ void _reverse(List list, int start, int end) { /// /// This insertion sort is stable: Equal elements end up in the same order /// as they started in. -void insertionSort/**/(List/**/ list, - {int compare(/*=T*/ a, /*=T*/ b), int start: 0, int end}) { +void insertionSort(List list, + {int compare(T a, T b), int start: 0, int end}) { // If the same method could have both positional and named optional // parameters, this should be (list, [start, end], {compare}). - compare ??= defaultCompare/**/(); + compare ??= defaultCompare(); end ??= list.length; for (int pos = start + 1; pos < end; pos++) { @@ -152,10 +150,10 @@ const int _MERGE_SORT_LIMIT = 32; /// /// This merge sort is stable: Equal elements end up in the same order /// as they started in. -void mergeSort/**/(List/**/ list, - {int start: 0, int end, int compare(/*=T*/ a, /*=T*/ b)}) { +void mergeSort(List list, + {int start: 0, int end, int compare(T a, T b)}) { end ??= list.length; - compare ??= defaultCompare/**/(); + compare ??= defaultCompare(); int length = end - start; if (length < 2) return; @@ -173,7 +171,7 @@ void mergeSort/**/(List/**/ list, int firstLength = middle - start; int secondLength = end - middle; // secondLength is always the same as firstLength, or one greater. - var scratchSpace = new List/**/(secondLength); + var scratchSpace = new List(secondLength); _mergeSort(list, compare, middle, end, scratchSpace, 0); int firstTarget = end - firstLength; _mergeSort(list, compare, start, middle, list, firstTarget); @@ -185,13 +183,8 @@ void mergeSort/**/(List/**/ list, /// one containing the original values. /// /// It will work in-place as well. -void _movingInsertionSort/**/( - List/**/ list, - int compare(/*=T*/ a, /*=T*/ b), - int start, - int end, - List/**/ target, - int targetOffset) { +void _movingInsertionSort(List list, int compare(T a, T b), int start, + int end, List target, int targetOffset) { int length = end - start; if (length == 0) return; target[targetOffset] = list[start]; @@ -219,8 +212,8 @@ void _movingInsertionSort/**/( /// /// Allows target to be the same list as [list], as long as it's not /// overlapping the `start..end` range. -void _mergeSort/**/(List/**/ list, int compare(/*=T*/ a, /*=T*/ b), - int start, int end, List/**/ target, int targetOffset) { +void _mergeSort(List list, int compare(T a, T b), int start, int end, + List target, int targetOffset) { int length = end - start; if (length < _MERGE_SORT_LIMIT) { _movingInsertionSort(list, compare, start, end, target, targetOffset); @@ -248,15 +241,15 @@ void _mergeSort/**/(List/**/ list, int compare(/*=T*/ a, /*=T*/ b), /// For equal object, elements from [firstList] are always preferred. /// This allows the merge to be stable if the first list contains elements /// that started out earlier than the ones in [secondList] -void _merge/**/( - int compare(/*=T*/ a, /*=T*/ b), - List/**/ firstList, +void _merge( + int compare(T a, T b), + List firstList, int firstStart, int firstEnd, - List/**/ secondList, + List secondList, int secondStart, int secondEnd, - List/**/ target, + List target, int targetOffset) { // No empty lists reaches here. assert(firstStart < firstEnd); diff --git a/pkgs/collection/lib/src/empty_unmodifiable_set.dart b/pkgs/collection/lib/src/empty_unmodifiable_set.dart index 69212a7c..ea00959c 100644 --- a/pkgs/collection/lib/src/empty_unmodifiable_set.dart +++ b/pkgs/collection/lib/src/empty_unmodifiable_set.dart @@ -11,7 +11,7 @@ import 'unmodifiable_wrappers.dart'; /// An unmodifiable, empty set that can have a const constructor. class EmptyUnmodifiableSet extends IterableBase implements UnmodifiableSetView { - static/*=T*/ _throw/**/() { + static T _throw() { throw new UnsupportedError("Cannot modify an unmodifiable Set"); } diff --git a/pkgs/collection/lib/src/functions.dart b/pkgs/collection/lib/src/functions.dart index 14fff53e..933de82e 100644 --- a/pkgs/collection/lib/src/functions.dart +++ b/pkgs/collection/lib/src/functions.dart @@ -13,13 +13,12 @@ import 'utils.dart'; /// /// The return values of [key] are used as the keys and the return values of /// [value] are used as the values for the new map. -Map/**/ mapMap/**/(Map/**/ map, - {/*=K2*/ key(/*=K1*/ key, /*=V1*/ value), - /*=V2*/ value(/*=K1*/ key, /*=V1*/ value)}) { - key ??= (mapKey, _) => mapKey as dynamic/*=K2*/; - value ??= (_, mapValue) => mapValue as dynamic/*=V2*/; +Map mapMap(Map map, + {K2 key(K1 key, V1 value), V2 value(K1 key, V1 value)}) { + key ??= (mapKey, _) => mapKey as K2; + value ??= (_, mapValue) => mapValue as V2; - var result = /**/ {}; + var result = {}; map.forEach((mapKey, mapValue) { result[key(mapKey, mapValue)] = value(mapKey, mapValue); }); @@ -31,9 +30,9 @@ Map/**/ mapMap/**/(Map/**/ map, /// If there are keys that occur in both maps, the [value] function is used to /// select the value that goes into the resulting map based on the two original /// values. If [value] is omitted, the value from [map2] is used. -Map/**/ mergeMaps/**/(Map/**/ map1, Map/**/ map2, - {/*=V*/ value(/*=V*/ value1, /*=V*/ value2)}) { - var result = new Map/**/ .from(map1); +Map mergeMaps(Map map1, Map map2, + {V value(V value1, V value2)}) { + var result = new Map.from(map1); if (value == null) return result..addAll(map2); map2.forEach((key, mapValue) { @@ -48,10 +47,8 @@ Map/**/ mergeMaps/**/(Map/**/ map1, Map/**/ map2, /// Returns a map from keys computed by [key] to a list of all values for which /// [key] returns that key. The values appear in the list in the same relative /// order as in [values]. -Map*/ > groupBy/**/( - Iterable/**/ values, - /*=T*/ key(/*=S*/ element)) { - var map = /*>*/ {}; +Map> groupBy(Iterable values, T key(S element)) { + var map = >{}; for (var element in values) { var list = map.putIfAbsent(key(element), () => []); list.add(element); @@ -65,12 +62,12 @@ Map*/ > groupBy/**/( /// The values returned by [orderBy] are compared using the [compare] function. /// If [compare] is omitted, values must implement [Comparable] and they are /// compared using their [Comparable.compareTo]. -/*=S*/ minBy/**/(Iterable/**/ values, /*=T*/ orderBy(/*=S*/ element), - {int compare(/*=T*/ value1, /*=T*/ value2)}) { - compare ??= defaultCompare/**/(); +S minBy(Iterable values, T orderBy(S element), + {int compare(T value1, T value2)}) { + compare ??= defaultCompare(); - var/*=S*/ minValue; - var/*=T*/ minOrderBy; + S minValue; + T minOrderBy; for (var element in values) { var elementOrderBy = orderBy(element); if (minOrderBy == null || compare(elementOrderBy, minOrderBy) < 0) { @@ -87,12 +84,12 @@ Map*/ > groupBy/**/( /// The values returned by [orderBy] are compared using the [compare] function. /// If [compare] is omitted, values must implement [Comparable] and they are /// compared using their [Comparable.compareTo]. -/*=S*/ maxBy/**/(Iterable/**/ values, /*=T*/ orderBy(/*=S*/ element), - {int compare(/*=T*/ value1, /*=T*/ value2)}) { - compare ??= defaultCompare/**/(); +S maxBy(Iterable values, T orderBy(S element), + {int compare(T value1, T value2)}) { + compare ??= defaultCompare(); - var/*=S*/ maxValue; - var/*=T*/ maxOrderBy; + S maxValue; + T maxOrderBy; for (var element in values) { var elementOrderBy = orderBy(element); if (maxOrderBy == null || compare(elementOrderBy, maxOrderBy) > 0) { @@ -114,15 +111,14 @@ Map*/ > groupBy/**/( /// that vertex has no outgoing edges. This isn't checked, but if it's not /// satisfied, the function may crash or provide unexpected output. For example, /// `{"a": ["b"]}` is not valid, but `{"a": ["b"], "b": []}` is. -Map*/ > transitiveClosure/**/( - Map*/ > graph) { +Map> transitiveClosure(Map> graph) { // This uses [Warshall's algorithm][], modified not to add a vertex from each // node to itself. // // [Warshall's algorithm]: https://en.wikipedia.org/wiki/Floyd%E2%80%93Warshall_algorithm#Applications_and_generalizations. - var result = /**/ {}; + var result = >{}; graph.forEach((vertex, edges) { - result[vertex] = new Set/**/ .from(edges); + result[vertex] = new Set.from(edges); }); // Lists are faster to iterate than maps, so we create a list since we're @@ -154,22 +150,21 @@ Map*/ > transitiveClosure/**/( /// that vertex has no outgoing edges. This isn't checked, but if it's not /// satisfied, the function may crash or provide unexpected output. For example, /// `{"a": ["b"]}` is not valid, but `{"a": ["b"], "b": []}` is. -List*/ > stronglyConnectedComponents/**/( - Map*/ > graph) { +List> stronglyConnectedComponents(Map> graph) { // This uses [Tarjan's algorithm][]. // // [Tarjan's algorithm]: https://en.wikipedia.org/wiki/Tarjan%27s_strongly_connected_components_algorithm var index = 0; - var stack = /**/ []; - var result = /*>*/ []; + var stack = []; + var result = >[]; // The order of these doesn't matter, so we use un-linked implementations to // avoid unnecessary overhead. - var indices = new HashMap/**/(); - var lowLinks = new HashMap/**/(); - var onStack = new HashSet/**/(); + var indices = new HashMap(); + var lowLinks = new HashMap(); + var onStack = new HashSet(); - strongConnect(/*=T*/ vertex) { + strongConnect(T vertex) { indices[vertex] = index; lowLinks[vertex] = index; index++; @@ -187,8 +182,8 @@ List*/ > stronglyConnectedComponents/**/( } if (lowLinks[vertex] == indices[vertex]) { - var component = new Set/**/(); - var/*=T*/ neighbor; + var component = new Set(); + T neighbor; do { neighbor = stack.removeLast(); onStack.remove(neighbor); diff --git a/pkgs/collection/lib/src/priority_queue.dart b/pkgs/collection/lib/src/priority_queue.dart index 84c43c23..89c3128e 100644 --- a/pkgs/collection/lib/src/priority_queue.dart +++ b/pkgs/collection/lib/src/priority_queue.dart @@ -145,7 +145,7 @@ class HeapPriorityQueue implements PriorityQueue { /// is the case, `E` must implement [Comparable], and this is checked at /// runtime for every comparison. HeapPriorityQueue([int comparison(E e1, E e2)]) - : comparison = comparison ?? defaultCompare/**/(); + : comparison = comparison ?? defaultCompare(); void add(E element) { _add(element); diff --git a/pkgs/collection/lib/src/typed_wrappers.dart b/pkgs/collection/lib/src/typed_wrappers.dart index d4c2fde0..242dc171 100644 --- a/pkgs/collection/lib/src/typed_wrappers.dart +++ b/pkgs/collection/lib/src/typed_wrappers.dart @@ -27,17 +27,14 @@ abstract class _TypeSafeIterableBase implements Iterable { bool every(bool test(E element)) => _base.every(_validate(test)); - Iterable/**/ expand/**/(Iterable/**/ f(E element)) => - _base.expand(_validate(f)); + Iterable expand(Iterable f(E element)) => _base.expand(_validate(f)); E get first => _base.first as E; E firstWhere(bool test(E element), {E orElse()}) => _base.firstWhere(_validate(test), orElse: orElse) as E; - /*=T*/ fold/**/( - /*=T*/ initialValue, - /*=T*/ combine(/*=T*/ previousValue, E element)) => + T fold(T initialValue, T combine(T previousValue, E element)) => _base.fold(initialValue, (previousValue, element) => combine(previousValue, element as E)); @@ -58,7 +55,7 @@ abstract class _TypeSafeIterableBase implements Iterable { int get length => _base.length; - Iterable/**/ map/**/(/*=T*/ f(E element)) => _base.map(_validate(f)); + Iterable map(T f(E element)) => _base.map(_validate(f)); E reduce(E combine(E value, E element)) => _base.reduce((value, element) => combine(value as E, element as E)) as E; @@ -90,7 +87,7 @@ abstract class _TypeSafeIterableBase implements Iterable { /// Returns a version of [function] that asserts that its argument is an /// instance of `E`. - _UnaryFunction/**/ _validate/**/(/*=F*/ function(E value)) => + _UnaryFunction _validate(F function(E value)) => (value) => function(value as E); } diff --git a/pkgs/collection/lib/src/unmodifiable_wrappers.dart b/pkgs/collection/lib/src/unmodifiable_wrappers.dart index 9e74348c..1b4d2e4b 100644 --- a/pkgs/collection/lib/src/unmodifiable_wrappers.dart +++ b/pkgs/collection/lib/src/unmodifiable_wrappers.dart @@ -26,7 +26,7 @@ class NonGrowableListView extends DelegatingList /// Mixin class that implements a throwing version of all list operations that /// change the List's length. abstract class NonGrowableListMixin implements List { - static/*=T*/ _throw/**/() { + static T _throw() { throw new UnsupportedError( "Cannot change the length of a fixed-length list"); } @@ -105,7 +105,7 @@ class UnmodifiableSetView extends DelegatingSet /// Mixin class that implements a throwing version of all set operations that /// change the Set. abstract class UnmodifiableSetMixin implements Set { - static/*=T*/ _throw/**/() { + static T _throw() { throw new UnsupportedError("Cannot modify an unmodifiable Set"); } @@ -145,7 +145,7 @@ abstract class UnmodifiableSetMixin implements Set { /// Mixin class that implements a throwing version of all map operations that /// change the Map. abstract class UnmodifiableMapMixin implements Map { - static/*=T*/ _throw/**/() { + static T _throw() { throw new UnsupportedError("Cannot modify an unmodifiable Map"); } diff --git a/pkgs/collection/lib/src/utils.dart b/pkgs/collection/lib/src/utils.dart index abfb4947..194f99c4 100644 --- a/pkgs/collection/lib/src/utils.dart +++ b/pkgs/collection/lib/src/utils.dart @@ -11,5 +11,5 @@ class Pair { } /// Returns a [Comparator] that asserts that its first argument is comparable. -Comparator/**/ defaultCompare/**/() => +Comparator defaultCompare() => (value1, value2) => (value1 as Comparable).compareTo(value2); diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index 1b917de8..1ff7dc16 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -27,17 +27,14 @@ abstract class _DelegatingIterableBase implements Iterable { bool every(bool test(E element)) => _base.every(test); - Iterable/**/ expand/**/(Iterable/**/ f(E element)) => - _base.expand(f); + Iterable expand(Iterable f(E element)) => _base.expand(f); E get first => _base.first; E firstWhere(bool test(E element), {E orElse()}) => _base.firstWhere(test, orElse: orElse); - /*=T*/ fold/**/( - /*=T*/ initialValue, - /*=T*/ combine(/*=T*/ previousValue, E element)) => + T fold(T initialValue, T combine(T previousValue, E element)) => _base.fold(initialValue, combine); void forEach(void f(E element)) => _base.forEach(f); @@ -57,7 +54,7 @@ abstract class _DelegatingIterableBase implements Iterable { int get length => _base.length; - Iterable/**/ map/**/(/*=T*/ f(E element)) => _base.map(f); + Iterable map(T f(E element)) => _base.map(f); E reduce(E combine(E value, E element)) => _base.reduce(combine); @@ -102,8 +99,8 @@ class DelegatingIterable extends _DelegatingIterableBase { /// This forwards all operations to [base], so any changes in [base] will be /// reflected in [this]. If [base] is already an `Iterable`, it's returned /// unmodified. - static Iterable/**/ typed/**/(Iterable base) => - base is Iterable/**/ ? base : new TypeSafeIterable/**/(base); + static Iterable typed(Iterable base) => + base is Iterable ? base : new TypeSafeIterable(base); } /// A [List] that delegates all operations to a base list. @@ -125,8 +122,8 @@ class DelegatingList extends DelegatingIterable implements List { /// This forwards all operations to [base], so any changes in [base] will be /// reflected in [this]. If [base] is already a `List`, it's returned /// unmodified. - static List/**/ typed/**/(List base) => - base is List/**/ ? base : new TypeSafeList/**/(base); + static List typed(List base) => + base is List ? base : new TypeSafeList(base); List get _listBase => _base; @@ -234,8 +231,8 @@ class DelegatingSet extends DelegatingIterable implements Set { /// This forwards all operations to [base], so any changes in [base] will be /// reflected in [this]. If [base] is already a `Set`, it's returned /// unmodified. - static Set/**/ typed/**/(Set base) => - base is Set/**/ ? base : new TypeSafeSet/**/(base); + static Set typed(Set base) => + base is Set ? base : new TypeSafeSet(base); Set get _setBase => _base; @@ -299,8 +296,8 @@ class DelegatingQueue extends DelegatingIterable implements Queue { /// This forwards all operations to [base], so any changes in [base] will be /// reflected in [this]. If [base] is already a `Queue`, it's returned /// unmodified. - static Queue/**/ typed/**/(Queue base) => - base is Queue/**/ ? base : new TypeSafeQueue/**/(base); + static Queue typed(Queue base) => + base is Queue ? base : new TypeSafeQueue(base); Queue get _baseQueue => _base; @@ -360,8 +357,8 @@ class DelegatingMap implements Map { /// This forwards all operations to [base], so any changes in [base] will be /// reflected in [this]. If [base] is already a `Map`, it's returned /// unmodified. - static Map/**/ typed/**/(Map base) => - base is Map/**/ ? base : new TypeSafeMap/**/(base); + static Map typed(Map base) => + base is Map ? base : new TypeSafeMap(base); V operator [](Object key) => _base[key]; diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 052fb98c..75104ff2 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,9 +1,9 @@ name: collection -version: 1.14.0 +version: 1.14.0+1 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection environment: - sdk: '>=1.21.0-dev.1.0 <2.0.0' + sdk: '>=1.21.0 <2.0.0' dev_dependencies: test: '^0.12.0' diff --git a/pkgs/collection/test/typed_wrapper/iterable_test.dart b/pkgs/collection/test/typed_wrapper/iterable_test.dart index b20dd27c..5de9651c 100644 --- a/pkgs/collection/test/typed_wrapper/iterable_test.dart +++ b/pkgs/collection/test/typed_wrapper/iterable_test.dart @@ -13,12 +13,10 @@ void main() { var emptyWrapper; var singleWrapper; setUp(() { - wrapper = DelegatingIterable - .typed/**/([1, 2, 3, 4, 5].map((i) => i)); - emptyWrapper = - DelegatingIterable.typed/**/([].map((i) => i)); - singleWrapper = - DelegatingIterable.typed/**/([1].map((i) => i)); + wrapper = + DelegatingIterable.typed([1, 2, 3, 4, 5].map((i) => i)); + emptyWrapper = DelegatingIterable.typed([].map((i) => i)); + singleWrapper = DelegatingIterable.typed([1].map((i) => i)); }); test("any()", () { @@ -177,7 +175,7 @@ void main() { test("toSet()", () { expect(wrapper.toSet(), unorderedEquals([1, 2, 3, 4, 5])); - expect(DelegatingIterable.typed/**/([1, 1, 2, 2]).toSet(), + expect(DelegatingIterable.typed([1, 1, 2, 2]).toSet(), unorderedEquals([1, 2])); }); @@ -196,10 +194,10 @@ void main() { var wrapper; var singleWrapper; setUp(() { - wrapper = DelegatingIterable.typed/**/( - ["foo", "bar", "baz"].map((element) => element)); + wrapper = DelegatingIterable + .typed(["foo", "bar", "baz"].map((element) => element)); singleWrapper = DelegatingIterable - .typed/**/(["foo"].map((element) => element)); + .typed(["foo"].map((element) => element)); }); group("throws a CastError for", () { diff --git a/pkgs/collection/test/typed_wrapper/list_test.dart b/pkgs/collection/test/typed_wrapper/list_test.dart index 57572d7d..e39375e4 100644 --- a/pkgs/collection/test/typed_wrapper/list_test.dart +++ b/pkgs/collection/test/typed_wrapper/list_test.dart @@ -14,8 +14,8 @@ void main() { var wrapper; var emptyWrapper; setUp(() { - wrapper = DelegatingList.typed/**/([1, 2, 3, 4, 5]); - emptyWrapper = DelegatingList.typed/**/([]); + wrapper = DelegatingList.typed([1, 2, 3, 4, 5]); + emptyWrapper = DelegatingList.typed([]); }); test("[]", () { @@ -226,7 +226,7 @@ void main() { var wrapper; setUp(() { inner = ["foo", "bar", "baz"]; - wrapper = DelegatingList.typed/**/(inner); + wrapper = DelegatingList.typed(inner); }); group("throws a CastError for", () { diff --git a/pkgs/collection/test/typed_wrapper/map_test.dart b/pkgs/collection/test/typed_wrapper/map_test.dart index 3ebf02b6..b81f4300 100644 --- a/pkgs/collection/test/typed_wrapper/map_test.dart +++ b/pkgs/collection/test/typed_wrapper/map_test.dart @@ -12,9 +12,9 @@ void main() { var wrapper; var emptyWrapper; setUp(() { - wrapper = DelegatingMap.typed/**/( + wrapper = DelegatingMap.typed( {"foo": 1, "bar": 2, "baz": 3, "bang": 4}); - emptyWrapper = DelegatingMap.typed/**/({}); + emptyWrapper = DelegatingMap.typed({}); }); test("[]", () { @@ -132,7 +132,7 @@ void main() { var wrapper; setUp(() { inner = {1: 1, 2: 2, 3: 3, 4: 4}; - wrapper = DelegatingMap.typed/**/(inner); + wrapper = DelegatingMap.typed(inner); }); group("throws a CastError for", () { @@ -230,7 +230,7 @@ void main() { var wrapper; setUp(() { inner = {"foo": "bar", "baz": "bang"}; - wrapper = DelegatingMap.typed/**/(inner); + wrapper = DelegatingMap.typed(inner); }); group("throws a CastError for", () { diff --git a/pkgs/collection/test/typed_wrapper/queue_test.dart b/pkgs/collection/test/typed_wrapper/queue_test.dart index 256280d9..ba16e520 100644 --- a/pkgs/collection/test/typed_wrapper/queue_test.dart +++ b/pkgs/collection/test/typed_wrapper/queue_test.dart @@ -14,9 +14,9 @@ void main() { var wrapper; var emptyWrapper; setUp(() { - wrapper = DelegatingQueue - .typed/**/(new Queue.from([1, 2, 3, 4, 5])); - emptyWrapper = DelegatingQueue.typed/**/(new Queue()); + wrapper = + DelegatingQueue.typed(new Queue.from([1, 2, 3, 4, 5])); + emptyWrapper = DelegatingQueue.typed(new Queue()); }); test("add()", () { @@ -85,7 +85,7 @@ void main() { var wrapper; setUp(() { inner = new Queue.from(["foo", "bar", "baz"]); - wrapper = DelegatingQueue.typed/**/(inner); + wrapper = DelegatingQueue.typed(inner); }); group("throws a CastError for", () { diff --git a/pkgs/collection/test/typed_wrapper/set_test.dart b/pkgs/collection/test/typed_wrapper/set_test.dart index fdbbf8ed..2cc96bef 100644 --- a/pkgs/collection/test/typed_wrapper/set_test.dart +++ b/pkgs/collection/test/typed_wrapper/set_test.dart @@ -11,8 +11,7 @@ void main() { group("with valid types, forwards", () { var wrapper; setUp(() { - wrapper = - DelegatingSet.typed/**/(new Set.from([1, 2, 3, 4, 5])); + wrapper = DelegatingSet.typed(new Set.from([1, 2, 3, 4, 5])); }); test("add()", () { @@ -92,7 +91,7 @@ void main() { var wrapper; setUp(() { inner = new Set.from(["foo", "bar", "baz"]); - wrapper = DelegatingSet.typed/**/(inner); + wrapper = DelegatingSet.typed(inner); }); group("throws a CastError for", () { From 5dc899f8f4fe0e5a5dedfee677d3792ed5af821c Mon Sep 17 00:00:00 2001 From: "Lasse R.H. Nielsen" Date: Mon, 22 May 2017 14:32:30 +0200 Subject: [PATCH 071/235] Make Equality.hash accept null as an argument. This just makes it easier to use the equality directly on a nullable type. The `isValidKey` check still say no for `null`. R=floitsch@google.com Review-Url: https://codereview.chromium.org//2898693002 . --- pkgs/collection/CHANGELOG.md | 4 ++ pkgs/collection/lib/src/equality.dart | 72 ++++++++++++++++--------- pkgs/collection/pubspec.yaml | 2 +- pkgs/collection/test/equality_test.dart | 26 +++++++++ 4 files changed, 77 insertions(+), 27 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 99481ca5..8ece77fe 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.14.1 + +* Make `Equality` implementations accept `null` as argument to `hash`. + ## 1.14.0 * Add `CombinedListView`, a view of several lists concatenated together. diff --git a/pkgs/collection/lib/src/equality.dart b/pkgs/collection/lib/src/equality.dart index aa5effac..a9706640 100644 --- a/pkgs/collection/lib/src/equality.dart +++ b/pkgs/collection/lib/src/equality.dart @@ -94,6 +94,10 @@ class IdentityEquality implements Equality { /// Equality on iterables. /// /// Two iterables are equal if they have the same elements in the same order. +/// +/// The [equals] and [hash] methods accepts `null` values, +/// even if the [isValidKey] returns `false` for `null`. +/// The [hash] of `null` is `null.hashCode`. class IterableEquality implements Equality> { final Equality _elementEquality; const IterableEquality( @@ -114,6 +118,7 @@ class IterableEquality implements Equality> { } int hash(Iterable elements) { + if (elements == null) return null.hashCode; // Jenkins's one-at-a-time hash function. int hash = 0; for (E element in elements) { @@ -138,29 +143,34 @@ class IterableEquality implements Equality> { /// /// This is effectively the same as [IterableEquality] except that it /// accesses elements by index instead of through iteration. +/// +/// The [equals] and [hash] methods accepts `null` values, +/// even if the [isValidKey] returns `false` for `null`. +/// The [hash] of `null` is `null.hashCode`. class ListEquality implements Equality> { final Equality _elementEquality; const ListEquality([Equality elementEquality = const DefaultEquality()]) : _elementEquality = elementEquality; - bool equals(List e1, List e2) { - if (identical(e1, e2)) return true; - if (e1 == null || e2 == null) return false; - int length = e1.length; - if (length != e2.length) return false; + bool equals(List list1, List list2) { + if (identical(list1, list2)) return true; + if (list1 == null || list2 == null) return false; + int length = list1.length; + if (length != list2.length) return false; for (int i = 0; i < length; i++) { - if (!_elementEquality.equals(e1[i], e2[i])) return false; + if (!_elementEquality.equals(list1[i], list2[i])) return false; } return true; } - int hash(List e) { + int hash(List list) { + if (elements == null) return null.hashCode; // Jenkins's one-at-a-time hash function. // This code is almost identical to the one in IterableEquality, except // that it uses indexing instead of iterating to get the elements. int hash = 0; - for (int i = 0; i < e.length; i++) { - int c = _elementEquality.hash(e[i]); + for (int i = 0; i < list.length; i++) { + int c = _elementEquality.hash(list[i]); hash = (hash + c) & _HASH_MASK; hash = (hash + (hash << 10)) & _HASH_MASK; hash ^= (hash >> 6); @@ -180,21 +190,21 @@ abstract class _UnorderedEquality> const _UnorderedEquality(this._elementEquality); - bool equals(T e1, T e2) { - if (identical(e1, e2)) return true; - if (e1 == null || e2 == null) return false; + bool equals(T elements1, T elements2) { + if (identical(elements1, elements2)) return true; + if (elements1 == null || elements2 == null) return false; HashMap counts = new HashMap( equals: _elementEquality.equals, hashCode: _elementEquality.hash, isValidKey: _elementEquality.isValidKey); int length = 0; - for (var e in e1) { + for (var e in elements1) { int count = counts[e]; if (count == null) count = 0; counts[e] = count + 1; length++; } - for (var e in e2) { + for (var e in elements2) { int count = counts[e]; if (count == null || count == 0) return false; counts[e] = count - 1; @@ -203,9 +213,10 @@ abstract class _UnorderedEquality> return length == 0; } - int hash(T e) { + int hash(T elements) { + if (elements == null) return null.hashCode; int hash = 0; - for (E element in e) { + for (E element in elements) { int c = _elementEquality.hash(element); hash = (hash + c) & _HASH_MASK; } @@ -237,6 +248,10 @@ class UnorderedIterableEquality extends _UnorderedEquality> { /// /// This equality behaves the same as [UnorderedIterableEquality] except that /// it expects sets instead of iterables as arguments. +/// +/// The [equals] and [hash] methods accepts `null` values, +/// even if the [isValidKey] returns `false` for `null`. +/// The [hash] of `null` is `null.hashCode`. class SetEquality extends _UnorderedEquality> { const SetEquality([Equality elementEquality = const DefaultEquality()]) : super(elementEquality); @@ -271,6 +286,10 @@ class _MapEntry { /// /// Two maps are equal if they have the same number of entries, and if the /// entries of the two maps are pairwise equal on both key and value. +/// +/// The [equals] and [hash] methods accepts `null` values, +/// even if the [isValidKey] returns `false` for `null`. +/// The [hash] of `null` is `null.hashCode`. class MapEquality implements Equality> { final Equality _keyEquality; final Equality _valueEquality; @@ -280,20 +299,20 @@ class MapEquality implements Equality> { : _keyEquality = keys, _valueEquality = values; - bool equals(Map e1, Map e2) { - if (identical(e1, e2)) return true; - if (e1 == null || e2 == null) return false; - int length = e1.length; - if (length != e2.length) return false; + bool equals(Map map1, Map map2) { + if (identical(map1, map2)) return true; + if (map1 == null || map2 == null) return false; + int length = map1.length; + if (length != map2.length) return false; Map<_MapEntry, int> equalElementCounts = new HashMap(); - for (K key in e1.keys) { - _MapEntry entry = new _MapEntry(this, key, e1[key]); + for (K key in map1.keys) { + _MapEntry entry = new _MapEntry(this, key, map1[key]); int count = equalElementCounts[entry]; if (count == null) count = 0; equalElementCounts[entry] = count + 1; } - for (K key in e2.keys) { - _MapEntry entry = new _MapEntry(this, key, e2[key]); + for (K key in map2.keys) { + _MapEntry entry = new _MapEntry(this, key, map2[key]); int count = equalElementCounts[entry]; if (count == null || count == 0) return false; equalElementCounts[entry] = count - 1; @@ -302,6 +321,7 @@ class MapEquality implements Equality> { } int hash(Map map) { + if (map == null) return null.hashCode; int hash = 0; for (K key in map.keys) { int keyHash = _keyEquality.hash(key); @@ -348,7 +368,7 @@ class MultiEquality implements Equality { for (Equality eq in _equalities) { if (eq.isValidKey(e)) return eq.hash(e); } - return -1; + return 0; } bool isValidKey(Object o) { diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 75104ff2..4ba307da 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.14.0+1 +version: 1.14.1 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection diff --git a/pkgs/collection/test/equality_test.dart b/pkgs/collection/test/equality_test.dart index f407fabf..63399c1f 100644 --- a/pkgs/collection/test/equality_test.dart +++ b/pkgs/collection/test/equality_test.dart @@ -202,6 +202,32 @@ main() { expect(firstObjectEquality.isValidKey([{}]), isFalse); }); }); + + test("Equality accepts null", () { + var ie = new IterableEquality(); + var le = new ListEquality(); + var se = new SetEquality(); + var me = new MapEquality(); + expect(ie.equals(null, null), true); + expect(ie.equals([], null), false); + expect(ie.equals(null, []), false); + expect(ie.hash(null), null.hashCode); + + expect(le.equals(null, null), true); + expect(le.equals([], null), false); + expect(le.equals(null, []), false); + expect(le.hash(null), null.hashCode); + + expect(se.equals(null, null), true); + expect(se.equals(new Set(), null), false); + expect(se.equals(null, new Set()), false); + expect(se.hash(null), null.hashCode); + + expect(me.equals(null, null), true); + expect(me.equals({}, null), false); + expect(me.equals(null, {}), false); + expect(me.hash(null), null.hashCode); + }); } /// Wrapper objects for an `id` value. From 35792504680180ff849ae870edc8532b46ba750a Mon Sep 17 00:00:00 2001 From: "Lasse R.H. Nielsen" Date: Mon, 22 May 2017 14:38:36 +0200 Subject: [PATCH 072/235] Make Equality.hash accept null as an argument. This just makes it easier to use the equality directly on a nullable type. The `isValidKey` check still say no for `null`. R=floitsch@google.com Committed: https://github.com/dart-lang/collection/commit/5dc899f8f4fe0e5a5dedfee677d3792ed5af821c Review-Url: https://codereview.chromium.org//2898693002 . --- pkgs/collection/lib/src/equality.dart | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/pkgs/collection/lib/src/equality.dart b/pkgs/collection/lib/src/equality.dart index a9706640..2c6c272c 100644 --- a/pkgs/collection/lib/src/equality.dart +++ b/pkgs/collection/lib/src/equality.dart @@ -164,7 +164,7 @@ class ListEquality implements Equality> { } int hash(List list) { - if (elements == null) return null.hashCode; + if (list == null) return null.hashCode; // Jenkins's one-at-a-time hash function. // This code is almost identical to the one in IterableEquality, except // that it uses indexing instead of iterating to get the elements. From cd1c8ed623ccbf9e04b1876433de129268c34c17 Mon Sep 17 00:00:00 2001 From: "Lasse R.H. Nielsen" Date: Fri, 7 Jul 2017 11:03:51 +0200 Subject: [PATCH 073/235] Add type arguments to SyntheticInvocation. R=floitsch@google.com Review-Url: https://codereview.chromium.org//2971283002 . --- pkgs/collection/pubspec.yaml | 2 +- pkgs/collection/test/wrapper_test.dart | 3 +++ 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 4ba307da..07cb622f 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.14.1 +version: 1.14.2 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index df26c874..9067426c 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -60,6 +60,9 @@ class SyntheticInvocation implements Invocation { final int _type; const SyntheticInvocation(this.memberName, this.positionalArguments, this.namedArguments, this._type); + + List get typeArguments => const []; + bool get isMethod => _type == METHOD; bool get isGetter => _type == GETTER; From ad72d77dcd164a5eb9408d22440c28fcdf01d094 Mon Sep 17 00:00:00 2001 From: Jennifer Messerly Date: Wed, 19 Jul 2017 17:36:09 -0700 Subject: [PATCH 074/235] fix MapKeySet.lookup to be a valid override in strong mode This was uncovered when fixing interface checking (https://github.com/dart-lang/sdk/issues/29766, https://github.com/dart-lang/sdk/issues/29782) R=matanl@google.com Review-Url: https://codereview.chromium.org//2978383002 . --- pkgs/collection/lib/src/wrappers.dart | 2 +- pkgs/collection/pubspec.yaml | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index 1ff7dc16..555296d2 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -449,7 +449,7 @@ class MapKeySet extends _DelegatingIterableBase /// Throws an [UnsupportedError] since there's no corresponding method for /// [Map]s. - E lookup(E element) => + E lookup(Object element) => throw new UnsupportedError("MapKeySet doesn't support lookup()."); /// Returns a new set which contains all the elements of [this] and [other]. diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 07cb622f..5d885299 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.14.2 +version: 1.14.3 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection From f26166d906982546d1f276961d4af6a36f8ed539 Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Fri, 22 Sep 2017 09:45:55 -0700 Subject: [PATCH 075/235] Lints, analysis option fix, deprecations (dart-lang/collection#63) * Rename analysis_options * lints * stop using deprecated `throws` matcher * Eliminate most implicit casts --- pkgs/collection/.analysis_options | 2 - pkgs/collection/analysis_options.yaml | 37 ++++++++++++++++ pkgs/collection/lib/src/equality.dart | 27 +++++------- pkgs/collection/lib/src/functions.dart | 2 +- pkgs/collection/lib/src/queue_list.dart | 2 +- pkgs/collection/lib/src/typed_wrappers.dart | 2 +- .../lib/src/unmodifiable_wrappers.dart | 8 ++-- pkgs/collection/lib/src/wrappers.dart | 4 +- pkgs/collection/pubspec.yaml | 2 +- pkgs/collection/test/algorithms_test.dart | 7 +-- .../test/canonicalized_map_test.dart | 6 +-- .../test/combined_wrapper/list_test.dart | 2 +- .../test/combined_wrapper/map_test.dart | 2 +- pkgs/collection/test/comparators_test.dart | 2 +- pkgs/collection/test/equality_test.dart | 2 +- pkgs/collection/test/functions_test.dart | 4 +- .../test/ignore_ascii_case_test.dart | 2 +- pkgs/collection/test/iterable_zip_test.dart | 1 + pkgs/collection/test/priority_queue_test.dart | 4 +- .../test/typed_wrapper/list_test.dart | 2 +- .../test/typed_wrapper/map_test.dart | 4 +- .../test/typed_wrapper/queue_test.dart | 2 +- .../test/typed_wrapper/set_test.dart | 2 +- .../test/union_set_controller_test.dart | 2 +- .../test/unmodifiable_collection_test.dart | 44 +++++++++---------- pkgs/collection/test/wrapper_test.dart | 12 ++--- 26 files changed, 109 insertions(+), 77 deletions(-) delete mode 100644 pkgs/collection/.analysis_options create mode 100644 pkgs/collection/analysis_options.yaml diff --git a/pkgs/collection/.analysis_options b/pkgs/collection/.analysis_options deleted file mode 100644 index a10d4c5a..00000000 --- a/pkgs/collection/.analysis_options +++ /dev/null @@ -1,2 +0,0 @@ -analyzer: - strong-mode: true diff --git a/pkgs/collection/analysis_options.yaml b/pkgs/collection/analysis_options.yaml new file mode 100644 index 00000000..5b5eb969 --- /dev/null +++ b/pkgs/collection/analysis_options.yaml @@ -0,0 +1,37 @@ +analyzer: + strong-mode: true + errors: + unused_element: error + unused_import: error + unused_local_variable: error + dead_code: error +linter: + rules: + # Errors + - avoid_empty_else + - control_flow_in_finally + - empty_statements + - hash_and_equals + - implementation_imports + - test_types_in_equals + - throw_in_finally + - unrelated_type_equality_checks + - valid_regexps + + # Style + - avoid_init_to_null + - avoid_return_types_on_setters + - await_only_futures + - camel_case_types + - directives_ordering + - empty_catches + - empty_constructor_bodies + - library_names + - library_prefixes + - non_constant_identifier_names + - only_throw_errors + - prefer_final_fields + - prefer_is_not_empty + - prefer_single_quotes + - slash_for_doc_comments + - type_init_formals diff --git a/pkgs/collection/lib/src/equality.dart b/pkgs/collection/lib/src/equality.dart index 2c6c272c..be7162bc 100644 --- a/pkgs/collection/lib/src/equality.dart +++ b/pkgs/collection/lib/src/equality.dart @@ -274,12 +274,10 @@ class _MapEntry { 7 * equality._valueEquality.hash(value)) & _HASH_MASK; - bool operator ==(Object other) { - if (other is! _MapEntry) return false; - _MapEntry otherEntry = other; - return equality._keyEquality.equals(key, otherEntry.key) && - equality._valueEquality.equals(value, otherEntry.value); - } + bool operator ==(Object other) => + other is _MapEntry && + equality._keyEquality.equals(key, other.key) && + equality._valueEquality.equals(value, other.value); } /// Equality on maps. @@ -411,26 +409,23 @@ class DeepCollectionEquality implements Equality { bool equals(e1, e2) { if (e1 is Set) { - if (e2 is! Set) return false; - return new SetEquality(this).equals(e1, e2); + return e2 is Set && new SetEquality(this).equals(e1, e2); } if (e1 is Map) { - if (e2 is! Map) return false; - return new MapEquality(keys: this, values: this).equals(e1, e2); + return e2 is Map && + new MapEquality(keys: this, values: this).equals(e1, e2); } if (!_unordered) { if (e1 is List) { - if (e2 is! List) return false; - return new ListEquality(this).equals(e1, e2); + return e2 is List && new ListEquality(this).equals(e1, e2); } if (e1 is Iterable) { - if (e2 is! Iterable) return false; - return new IterableEquality(this).equals(e1, e2); + return e2 is Iterable && new IterableEquality(this).equals(e1, e2); } } else if (e1 is Iterable) { - if (e2 is! Iterable) return false; if (e1 is List != e2 is List) return false; - return new UnorderedIterableEquality(this).equals(e1, e2); + return e2 is Iterable && + new UnorderedIterableEquality(this).equals(e1, e2); } return _base.equals(e1, e2); } diff --git a/pkgs/collection/lib/src/functions.dart b/pkgs/collection/lib/src/functions.dart index 933de82e..b4ff9a9d 100644 --- a/pkgs/collection/lib/src/functions.dart +++ b/pkgs/collection/lib/src/functions.dart @@ -2,8 +2,8 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import 'dart:math' as math; import 'dart:collection'; +import 'dart:math' as math; import 'utils.dart'; diff --git a/pkgs/collection/lib/src/queue_list.dart b/pkgs/collection/lib/src/queue_list.dart index 73c1f66e..7f102613 100644 --- a/pkgs/collection/lib/src/queue_list.dart +++ b/pkgs/collection/lib/src/queue_list.dart @@ -114,7 +114,7 @@ class QueueList extends Object with ListMixin implements Queue { int get length => (_tail - _head) & (_table.length - 1); - void set length(int value) { + set length(int value) { if (value < 0) throw new RangeError("Length $value may not be negative."); int delta = value - length; diff --git a/pkgs/collection/lib/src/typed_wrappers.dart b/pkgs/collection/lib/src/typed_wrappers.dart index 242dc171..118a614e 100644 --- a/pkgs/collection/lib/src/typed_wrappers.dart +++ b/pkgs/collection/lib/src/typed_wrappers.dart @@ -150,7 +150,7 @@ class TypeSafeList extends TypeSafeIterable implements DelegatingList { int lastIndexOf(E element, [int start]) => _listBase.lastIndexOf(element, start); - void set length(int newLength) { + set length(int newLength) { _listBase.length = newLength; } diff --git a/pkgs/collection/lib/src/unmodifiable_wrappers.dart b/pkgs/collection/lib/src/unmodifiable_wrappers.dart index 1b4d2e4b..070ab788 100644 --- a/pkgs/collection/lib/src/unmodifiable_wrappers.dart +++ b/pkgs/collection/lib/src/unmodifiable_wrappers.dart @@ -2,10 +2,10 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -export "dart:collection" show UnmodifiableListView, UnmodifiableMapView; - -import 'wrappers.dart'; import 'empty_unmodifiable_set.dart'; +import 'wrappers.dart'; + +export "dart:collection" show UnmodifiableListView, UnmodifiableMapView; /// A fixed-length list. /// @@ -33,7 +33,7 @@ abstract class NonGrowableListMixin implements List { /// Throws an [UnsupportedError]; /// operations that change the length of the list are disallowed. - void set length(int newLength) => _throw(); + set length(int newLength) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the length of the list are disallowed. diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index 555296d2..c3f64380 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -159,14 +159,14 @@ class DelegatingList extends DelegatingIterable implements List { _listBase.insert(index, element); } - void insertAll(int index, Iterable iterable) { + insertAll(int index, Iterable iterable) { _listBase.insertAll(index, iterable); } int lastIndexOf(E element, [int start]) => _listBase.lastIndexOf(element, start); - void set length(int newLength) { + set length(int newLength) { _listBase.length = newLength; } diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 5d885299..9bf346ec 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.14.3 +version: 1.14.4-dev author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection diff --git a/pkgs/collection/test/algorithms_test.dart b/pkgs/collection/test/algorithms_test.dart index dbd2633f..c7f5af1e 100644 --- a/pkgs/collection/test/algorithms_test.dart +++ b/pkgs/collection/test/algorithms_test.dart @@ -3,10 +3,10 @@ // BSD-style license that can be found in the LICENSE file. /// Tests algorithm utilities. +import 'dart:math'; import "package:collection/collection.dart"; import "package:test/test.dart"; -import 'dart:math'; void main() { void testShuffle(List list) { @@ -212,7 +212,7 @@ void main() { // larger case where the internal moving insertion sort is used // larger cases with multiple splittings, numbers just around a power of 2. for (int size in [8, 50, 511, 512, 513]) { - List list = new List(size); + var list = new List(size); // Class OC compares using id. // With size elements with id's in the range 0..size/4, a number of // collisions are guaranteed. These should be sorted so that the "order" @@ -234,7 +234,8 @@ void main() { List copy = list.toList(); int min = size >> 2; int max = size - min; - mergeSort(list, start: min, end: max, compare: (a, b) => b.compareTo(a)); + mergeSort(list, + start: min, end: max, compare: (a, b) => b.compareTo(a)); prev = list[min]; for (int i = min + 1; i < max; i++) { OC next = list[i]; diff --git a/pkgs/collection/test/canonicalized_map_test.dart b/pkgs/collection/test/canonicalized_map_test.dart index 437e44fd..716e738d 100644 --- a/pkgs/collection/test/canonicalized_map_test.dart +++ b/pkgs/collection/test/canonicalized_map_test.dart @@ -10,7 +10,7 @@ void main() { var map; setUp(() { map = new CanonicalizedMap(int.parse, - isValidKey: (s) => new RegExp(r"^\d+$").hasMatch(s)); + isValidKey: (s) => new RegExp(r"^\d+$").hasMatch(s as String)); }); test("canonicalizes keys on set and get", () { @@ -61,8 +61,8 @@ void main() { test("canonicalizes keys for putIfAbsent", () { map["1"] = "value"; - expect( - map.putIfAbsent("01", () => throw "shouldn't run"), equals("value")); + expect(map.putIfAbsent("01", () => throw new Exception("shouldn't run")), + equals("value")); expect(map.putIfAbsent("2", () => "new value"), equals("new value")); }); diff --git a/pkgs/collection/test/combined_wrapper/list_test.dart b/pkgs/collection/test/combined_wrapper/list_test.dart index 1a00f324..9e909255 100644 --- a/pkgs/collection/test/combined_wrapper/list_test.dart +++ b/pkgs/collection/test/combined_wrapper/list_test.dart @@ -11,7 +11,7 @@ void main() { var list1 = [1, 2, 3]; var list2 = [4, 5, 6]; var list3 = [7, 8, 9]; - var concat = []..addAll(list1)..addAll(list2)..addAll(list3); + var concat = []..addAll(list1)..addAll(list2)..addAll(list3); // In every way possible this should test the same as an UnmodifiableListView. common.testUnmodifiableList( diff --git a/pkgs/collection/test/combined_wrapper/map_test.dart b/pkgs/collection/test/combined_wrapper/map_test.dart index 832fe364..ecafb4b9 100644 --- a/pkgs/collection/test/combined_wrapper/map_test.dart +++ b/pkgs/collection/test/combined_wrapper/map_test.dart @@ -11,7 +11,7 @@ void main() { var map1 = const {1: 1, 2: 2, 3: 3}; var map2 = const {4: 4, 5: 5, 6: 6}; var map3 = const {7: 7, 8: 8, 9: 9}; - var concat = {}..addAll(map1)..addAll(map2)..addAll(map3); + var concat = {}..addAll(map1)..addAll(map2)..addAll(map3); // In every way possible this should test the same as an UnmodifiableMapView. common.testReadMap( diff --git a/pkgs/collection/test/comparators_test.dart b/pkgs/collection/test/comparators_test.dart index aa868d95..4762d172 100644 --- a/pkgs/collection/test/comparators_test.dart +++ b/pkgs/collection/test/comparators_test.dart @@ -57,7 +57,7 @@ void main() { "~" ]; - sortedBy(compare) => strings.toList() + void sortedBy(int compare(String a, String b)) => strings.toList() ..shuffle() ..sort(compare); diff --git a/pkgs/collection/test/equality_test.dart b/pkgs/collection/test/equality_test.dart index 63399c1f..ffc86551 100644 --- a/pkgs/collection/test/equality_test.dart +++ b/pkgs/collection/test/equality_test.dart @@ -9,7 +9,7 @@ import "package:collection/collection.dart"; import "package:test/test.dart"; main() { - o(id) => new Element(id); + o(Comparable id) => new Element(id); // Lists that are point-wise equal, but not identical. var list1 = [o(1), o(2), o(3), o(4), o(5)]; diff --git a/pkgs/collection/test/functions_test.dart b/pkgs/collection/test/functions_test.dart index d75f8cfc..a1e8f084 100644 --- a/pkgs/collection/test/functions_test.dart +++ b/pkgs/collection/test/functions_test.dart @@ -109,7 +109,7 @@ void main() { test("uses a custom comparator if provided", () { expect( - minBy([ + minBy, Map>([ {"foo": 3}, {"foo": 5}, {"foo": 4}, @@ -145,7 +145,7 @@ void main() { test("uses a custom comparator if provided", () { expect( - maxBy([ + maxBy, Map>([ {"foo": 3}, {"foo": 5}, {"foo": 4}, diff --git a/pkgs/collection/test/ignore_ascii_case_test.dart b/pkgs/collection/test/ignore_ascii_case_test.dart index 6aee4557..5e3ee4fd 100644 --- a/pkgs/collection/test/ignore_ascii_case_test.dart +++ b/pkgs/collection/test/ignore_ascii_case_test.dart @@ -42,7 +42,7 @@ main() { var lowerCaseLetters = "@`ABCDEFGHIJKLMNOPQRSTUVWXYZ[{åÅ"; expect(equalsIgnoreAsciiCase(upperCaseLetters, lowerCaseLetters), true); - testChars(char1, char2, areEqual) { + testChars(String char1, String char2, bool areEqual) { expect(equalsIgnoreAsciiCase(char1, char2), areEqual, reason: "$char1 ${areEqual ? "=" : "!"}= $char2"); } diff --git a/pkgs/collection/test/iterable_zip_test.dart b/pkgs/collection/test/iterable_zip_test.dart index d4d54841..7b6db73b 100644 --- a/pkgs/collection/test/iterable_zip_test.dart +++ b/pkgs/collection/test/iterable_zip_test.dart @@ -10,6 +10,7 @@ import "package:collection/collection.dart"; /// Iterable like [base] except that it throws when value equals [errorValue]. Iterable iterError(Iterable base, int errorValue) { + // ignore: only_throw_errors return base.map((x) => x == errorValue ? throw "BAD" : x); } diff --git a/pkgs/collection/test/priority_queue_test.dart b/pkgs/collection/test/priority_queue_test.dart index 0e493e5a..bcb892f8 100644 --- a/pkgs/collection/test/priority_queue_test.dart +++ b/pkgs/collection/test/priority_queue_test.dart @@ -30,7 +30,7 @@ void testInt(PriorityQueue create()) { } } -void testCustom(PriorityQueue create(comparator)) { +void testCustom(PriorityQueue create(int comparator(C a, C b))) { for (int count in [1, 5, 127, 128]) { testQueue("Custom:$count/null", () => create(null), new List.generate(count, (x) => new C(x)), new C(count)); @@ -73,7 +73,7 @@ void testQueueBody(PriorityQueue create(), List elements, notElement) { expect(q.contains(notElement), isFalse); List all = []; - while (!q.isEmpty) { + while (q.isNotEmpty) { var expected = q.first; var actual = q.removeFirst(); expect(actual, same(expected)); diff --git a/pkgs/collection/test/typed_wrapper/list_test.dart b/pkgs/collection/test/typed_wrapper/list_test.dart index e39375e4..7876dbe9 100644 --- a/pkgs/collection/test/typed_wrapper/list_test.dart +++ b/pkgs/collection/test/typed_wrapper/list_test.dart @@ -222,7 +222,7 @@ void main() { }); group("with invalid types", () { - var inner; + List inner; var wrapper; setUp(() { inner = ["foo", "bar", "baz"]; diff --git a/pkgs/collection/test/typed_wrapper/map_test.dart b/pkgs/collection/test/typed_wrapper/map_test.dart index b81f4300..75078bd7 100644 --- a/pkgs/collection/test/typed_wrapper/map_test.dart +++ b/pkgs/collection/test/typed_wrapper/map_test.dart @@ -128,7 +128,7 @@ void main() { }); group("with invalid key types", () { - var inner; + Map inner; var wrapper; setUp(() { inner = {1: 1, 2: 2, 3: 3, 4: 4}; @@ -226,7 +226,7 @@ void main() { }, skip: "Re-enable this when test can run DDC (test#414)."); group("with invalid value types", () { - var inner; + Map inner; var wrapper; setUp(() { inner = {"foo": "bar", "baz": "bang"}; diff --git a/pkgs/collection/test/typed_wrapper/queue_test.dart b/pkgs/collection/test/typed_wrapper/queue_test.dart index ba16e520..e9ffb3a2 100644 --- a/pkgs/collection/test/typed_wrapper/queue_test.dart +++ b/pkgs/collection/test/typed_wrapper/queue_test.dart @@ -81,7 +81,7 @@ void main() { }); group("with invalid types", () { - var inner; + Queue inner; var wrapper; setUp(() { inner = new Queue.from(["foo", "bar", "baz"]); diff --git a/pkgs/collection/test/typed_wrapper/set_test.dart b/pkgs/collection/test/typed_wrapper/set_test.dart index 2cc96bef..d7eed5f6 100644 --- a/pkgs/collection/test/typed_wrapper/set_test.dart +++ b/pkgs/collection/test/typed_wrapper/set_test.dart @@ -87,7 +87,7 @@ void main() { }); group("with invalid types", () { - var inner; + Set inner; var wrapper; setUp(() { inner = new Set.from(["foo", "bar", "baz"]); diff --git a/pkgs/collection/test/union_set_controller_test.dart b/pkgs/collection/test/union_set_controller_test.dart index aa8c1c9f..366b7817 100644 --- a/pkgs/collection/test/union_set_controller_test.dart +++ b/pkgs/collection/test/union_set_controller_test.dart @@ -8,7 +8,7 @@ import "package:collection/collection.dart"; void main() { var controller; - var innerSet; + Set innerSet; setUp(() { innerSet = new Set.from([1, 2, 3]); controller = new UnionSetController()..add(innerSet); diff --git a/pkgs/collection/test/unmodifiable_collection_test.dart b/pkgs/collection/test/unmodifiable_collection_test.dart index 91ad8ad2..a6705f62 100644 --- a/pkgs/collection/test/unmodifiable_collection_test.dart +++ b/pkgs/collection/test/unmodifiable_collection_test.dart @@ -11,7 +11,7 @@ import "package:collection/collection.dart"; // an throw on the ones that aren't without affecting the original. main() { - List list = []; + var list = []; testUnmodifiableList(list, new UnmodifiableListView(list), "empty"); list = [42]; testUnmodifiableList(list, new UnmodifiableListView(list), "single-42"); @@ -33,7 +33,7 @@ main() { list = [1, 7, 10]; testNonGrowableList(list, new NonGrowableListView(list), "three!42"); - Set aSet = new Set(); + var aSet = new Set(); testUnmodifiableSet(aSet, new UnmodifiableSetView(aSet), "empty"); aSet = new Set(); testUnmodifiableSet(aSet, const UnmodifiableSetView.empty(), "const empty"); @@ -47,7 +47,7 @@ main() { testUnmodifiableSet(aSet, new UnmodifiableSetView(aSet), "three!42"); } -void testUnmodifiableList(List original, List wrapped, String name) { +void testUnmodifiableList(List original, List wrapped, String name) { name = "unmodifiable-list-$name"; testIterable(original, wrapped, name); testReadList(original, wrapped, name); @@ -55,7 +55,7 @@ void testUnmodifiableList(List original, List wrapped, String name) { testNoChangeLengthList(original, wrapped, name); } -void testNonGrowableList(List original, List wrapped, String name) { +void testNonGrowableList(List original, List wrapped, String name) { name = "nongrowable-list-$name"; testIterable(original, wrapped, name); testReadList(original, wrapped, name); @@ -63,14 +63,14 @@ void testNonGrowableList(List original, List wrapped, String name) { testNoChangeLengthList(original, wrapped, name); } -void testUnmodifiableSet(Set original, Set wrapped, String name) { +void testUnmodifiableSet(Set original, Set wrapped, String name) { name = "unmodifiable-set-$name"; testIterable(original, wrapped, name); testReadSet(original, wrapped, name); testNoChangeSet(original, wrapped, name); } -void testIterable(Iterable original, Iterable wrapped, String name) { +void testIterable(Iterable original, Iterable wrapped, String name) { test("$name - any", () { expect(wrapped.any((x) => true), equals(original.any((x) => true))); expect(wrapped.any((x) => false), equals(original.any((x) => false))); @@ -82,7 +82,7 @@ void testIterable(Iterable original, Iterable wrapped, String name) { test("$name - elementAt", () { if (original.isEmpty) { - expect(() => wrapped.elementAt(0), throws); + expect(() => wrapped.elementAt(0), throwsRangeError); } else { expect(wrapped.elementAt(0), equals(original.elementAt(0))); } @@ -100,7 +100,7 @@ void testIterable(Iterable original, Iterable wrapped, String name) { test("$name - first", () { if (original.isEmpty) { - expect(() => wrapped.first, throws); + expect(() => wrapped.first, throwsStateError); } else { expect(wrapped.first, equals(original.first)); } @@ -108,12 +108,12 @@ void testIterable(Iterable original, Iterable wrapped, String name) { test("$name - firstWhere", () { if (original.isEmpty) { - expect(() => wrapped.firstWhere((_) => true), throws); + expect(() => wrapped.firstWhere((_) => true), throwsStateError); } else { expect(wrapped.firstWhere((_) => true), equals(original.firstWhere((_) => true))); } - expect(() => wrapped.firstWhere((_) => false), throws); + expect(() => wrapped.firstWhere((_) => false), throwsStateError); }); test("$name - fold", () { @@ -158,7 +158,7 @@ void testIterable(Iterable original, Iterable wrapped, String name) { test("$name - last", () { if (original.isEmpty) { - expect(() => wrapped.last, throws); + expect(() => wrapped.last, throwsStateError); } else { expect(wrapped.last, equals(original.last)); } @@ -166,12 +166,12 @@ void testIterable(Iterable original, Iterable wrapped, String name) { test("$name - lastWhere", () { if (original.isEmpty) { - expect(() => wrapped.lastWhere((_) => true), throws); + expect(() => wrapped.lastWhere((_) => true), throwsStateError); } else { expect(wrapped.lastWhere((_) => true), equals(original.lastWhere((_) => true))); } - expect(() => wrapped.lastWhere((_) => false), throws); + expect(() => wrapped.lastWhere((_) => false), throwsStateError); }); test("$name - length", () { @@ -184,7 +184,7 @@ void testIterable(Iterable original, Iterable wrapped, String name) { test("$name - reduce", () { if (original.isEmpty) { - expect(() => wrapped.reduce((x, y) => x + y), throws); + expect(() => wrapped.reduce((x, y) => x + y), throwsStateError); } else { expect(wrapped.reduce((x, y) => x + y), equals(original.reduce((x, y) => x + y))); @@ -193,7 +193,7 @@ void testIterable(Iterable original, Iterable wrapped, String name) { test("$name - single", () { if (original.length != 1) { - expect(() => wrapped.single, throws); + expect(() => wrapped.single, throwsStateError); } else { expect(wrapped.single, equals(original.single)); } @@ -201,12 +201,12 @@ void testIterable(Iterable original, Iterable wrapped, String name) { test("$name - singleWhere", () { if (original.length != 1) { - expect(() => wrapped.singleWhere((_) => true), throws); + expect(() => wrapped.singleWhere((_) => true), throwsStateError); } else { expect(wrapped.singleWhere((_) => true), equals(original.singleWhere((_) => true))); } - expect(() => wrapped.singleWhere((_) => false), throws); + expect(() => wrapped.singleWhere((_) => false), throwsStateError); }); test("$name - skip", () { @@ -344,8 +344,8 @@ void testNoWriteList(List original, List wrapped, String name) { }); } -void testWriteList(List original, List wrapped, String name) { - List copy = new List.from(original); +void testWriteList(List original, List wrapped, String name) { + var copy = new List.from(original); test("$name - []=", () { if (original.isNotEmpty) { @@ -356,7 +356,7 @@ void testWriteList(List original, List wrapped, String name) { } else { expect(() { wrapped[0] = 42; - }, throws); + }, throwsRangeError); } }); @@ -394,7 +394,7 @@ void testWriteList(List original, List wrapped, String name) { void testNoChangeLengthList(List original, List wrapped, String name) { List copy = new List.from(original); - testThrows(name, thunk) { + void testThrows(String name, thunk) { test(name, () { expect(thunk, throwsUnsupportedError); // No modifications happened. @@ -539,7 +539,7 @@ void testNoChangeSet(Set original, Set wrapped, String name) { }); } -void testReadMap(Map original, Map wrapped, String name) { +void testReadMap(Map original, Map wrapped, String name) { test("$name length", () { expect(wrapped.length, equals(original.length)); }); diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index 9067426c..b19b49b3 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -86,7 +86,7 @@ const TO_STRING_INVOCATION = const SyntheticInvocation( // argument to DelegatingIterable/Set/List. class IterableNSM extends NSM implements Iterable, Set, List, Queue { IterableNSM(action(Invocation i)) : super(action); - toString() => super.noSuchMethod(TO_STRING_INVOCATION); + toString() => super.noSuchMethod(TO_STRING_INVOCATION) as String; } // Expector that wraps in DelegatingIterable. @@ -120,7 +120,7 @@ class QueueExpector extends Expector { // Like NSM but implements Map to allow as argument for DelegatingMap. class MapNSM extends NSM implements Map { MapNSM(action(Invocation i)) : super(action); - toString() => super.noSuchMethod(TO_STRING_INVOCATION); + toString() => super.noSuchMethod(TO_STRING_INVOCATION) as String; } // Expector that wraps in DelegatingMap. @@ -458,8 +458,8 @@ void main() { }); group("MapKeySet", () { - var map; - var set; + Map map; + Set set; setUp(() { map = new Map(); @@ -526,8 +526,8 @@ void main() { }); group("MapValueSet", () { - var map; - var set; + Map map; + Set set; setUp(() { map = new Map(); From 57f4a34a726256f3f2a4000d3ebad0e258a3ebed Mon Sep 17 00:00:00 2001 From: Sam Rawlins Date: Tue, 2 Jan 2018 06:25:38 -0800 Subject: [PATCH 076/235] Add methods where needed for Dart 2.0 core lib changes. (dart-lang/collection#65) Add methods where needed for Dart 2.0 core lib changes. Right now, all of the implementations throw (except in trivial cases, like the EmptyUnmodifiable* classes). They can be updated, typically to call `super` or reference a wrapped object, once the new methods have been released as part of a Dart 2.0 release, and this pubspec.yaml updates to guarantee that those implementations exist. --- pkgs/collection/CHANGELOG.md | 13 ++ .../collection/lib/src/canonicalized_map.dart | 46 ++++++ .../lib/src/empty_unmodifiable_set.dart | 5 + pkgs/collection/lib/src/queue_list.dart | 10 ++ pkgs/collection/lib/src/typed_wrappers.dart | 129 ++++++++++++++- .../lib/src/unmodifiable_wrappers.dart | 8 + pkgs/collection/lib/src/wrappers.dart | 148 +++++++++++++++++- pkgs/collection/pubspec.yaml | 2 +- pkgs/collection/test/wrapper_test.dart | 3 + 9 files changed, 360 insertions(+), 4 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 8ece77fe..519256a1 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,16 @@ +## 1.14.4 + +* Add implementation stubs of upcoming Dart 2.0 core library methods, namely + new methods for classes that implement Iterable, List, Map, Queue, and Set. + +## 1.14.3 + +* Fix MapKeySet.lookup to be a valid override in strong mode. + +## 1.14.2 + +* Add type arguments to SyntheticInvocation. + ## 1.14.1 * Make `Equality` implementations accept `null` as argument to `hash`. diff --git a/pkgs/collection/lib/src/canonicalized_map.dart b/pkgs/collection/lib/src/canonicalized_map.dart index a8af43a0..122bb35f 100644 --- a/pkgs/collection/lib/src/canonicalized_map.dart +++ b/pkgs/collection/lib/src/canonicalized_map.dart @@ -69,6 +69,18 @@ class CanonicalizedMap implements Map { other.forEach((key, value) => this[key] = value); } + // TODO: Dart 2.0 requires this method to be implemented. + void addEntries(Iterable entries) { + // Change Iterable to Iterable> when + // the MapEntry class has been added. + throw new UnimplementedError('addEntries'); + } + + // TODO: Dart 2.0 requires this method to be implemented. + Map cast() { + throw new UnimplementedError('cast'); + } + void clear() { _base.clear(); } @@ -81,6 +93,13 @@ class CanonicalizedMap implements Map { bool containsValue(Object value) => _base.values.any((pair) => pair.last == value); + // TODO: Dart 2.0 requires this method to be implemented. + Iterable get entries { + // Change Iterable to Iterable> when + // the MapEntry class has been added. + throw new UnimplementedError('entries'); + } + void forEach(void f(K key, V value)) { _base.forEach((key, pair) => f(pair.first, pair.last)); } @@ -93,6 +112,13 @@ class CanonicalizedMap implements Map { int get length => _base.length; + // TODO: Dart 2.0 requires this method to be implemented. + Map map(Object transform(K key, V value)) { + // Change Object to MapEntry when + // the MapEntry class has been added. + throw new UnimplementedError('map'); + } + V putIfAbsent(K key, V ifAbsent()) { return _base .putIfAbsent(_canonicalize(key), () => new Pair(key, ifAbsent())) @@ -105,6 +131,26 @@ class CanonicalizedMap implements Map { return pair == null ? null : pair.last; } + // TODO: Dart 2.0 requires this method to be implemented. + void removeWhere(bool test(K key, V value)) { + throw new UnimplementedError('removeWhere'); + } + + // TODO: Dart 2.0 requires this method to be implemented. + Map retype() { + throw new UnimplementedError('retype'); + } + + // TODO: Dart 2.0 requires this method to be implemented. + V update(K key, V update(V value), {V ifAbsent()}) { + throw new UnimplementedError('update'); + } + + // TODO: Dart 2.0 requires this method to be implemented. + void updateAll(V update(K key, V value)) { + throw new UnimplementedError('updateAll'); + } + Iterable get values => _base.values.map((pair) => pair.last); String toString() => Maps.mapToString(this); diff --git a/pkgs/collection/lib/src/empty_unmodifiable_set.dart b/pkgs/collection/lib/src/empty_unmodifiable_set.dart index ea00959c..b3d29ec0 100644 --- a/pkgs/collection/lib/src/empty_unmodifiable_set.dart +++ b/pkgs/collection/lib/src/empty_unmodifiable_set.dart @@ -20,9 +20,14 @@ class EmptyUnmodifiableSet extends IterableBase const EmptyUnmodifiableSet(); + EmptyUnmodifiableSet cast() => const EmptyUnmodifiableSet(); bool contains(Object element) => false; bool containsAll(Iterable other) => other.isEmpty; + Iterable followedBy(Iterable other) => new Set.from(other); E lookup(Object element) => null; + EmptyUnmodifiableSet retype() => const EmptyUnmodifiableSet(); + E singleWhere(bool test(E element), {E orElse()}) => super.singleWhere(test); + Iterable whereType() => const EmptyUnmodifiableSet(); Set toSet() => new Set(); Set union(Set other) => new Set.from(other); Set intersection(Set other) => new Set(); diff --git a/pkgs/collection/lib/src/queue_list.dart b/pkgs/collection/lib/src/queue_list.dart index 7f102613..224ac861 100644 --- a/pkgs/collection/lib/src/queue_list.dart +++ b/pkgs/collection/lib/src/queue_list.dart @@ -80,6 +80,16 @@ class QueueList extends Object with ListMixin implements Queue { } } + // TODO: Dart 2.0 requires this method to be implemented. + QueueList cast() { + throw new UnimplementedError('cast'); + } + + // TODO: Dart 2.0 requires this method to be implemented. + QueueList retype() { + throw new UnimplementedError('retype'); + } + String toString() => IterableBase.iterableToFullString(this, "{", "}"); // Queue interface. diff --git a/pkgs/collection/lib/src/typed_wrappers.dart b/pkgs/collection/lib/src/typed_wrappers.dart index 118a614e..cef2a586 100644 --- a/pkgs/collection/lib/src/typed_wrappers.dart +++ b/pkgs/collection/lib/src/typed_wrappers.dart @@ -21,6 +21,11 @@ abstract class _TypeSafeIterableBase implements Iterable { bool any(bool test(E element)) => _base.any(_validate(test)); + // TODO: Dart 2.0 requires this method to be implemented. + Iterable cast() { + throw new UnimplementedError('cast'); + } + bool contains(Object element) => _base.contains(element); E elementAt(int index) => _base.elementAt(index) as E; @@ -38,6 +43,11 @@ abstract class _TypeSafeIterableBase implements Iterable { _base.fold(initialValue, (previousValue, element) => combine(previousValue, element as E)); + // TODO: Dart 2.0 requires this method to be implemented. + Iterable followedBy(Iterable other) { + throw new UnimplementedError('followedBy'); + } + void forEach(void f(E element)) => _base.forEach(_validate(f)); bool get isEmpty => _base.isEmpty; @@ -60,10 +70,17 @@ abstract class _TypeSafeIterableBase implements Iterable { E reduce(E combine(E value, E element)) => _base.reduce((value, element) => combine(value as E, element as E)) as E; + // TODO: Dart 2.0 requires this method to be implemented. + Iterable retype() { + throw new UnimplementedError('retype'); + } + E get single => _base.single as E; - E singleWhere(bool test(E element)) => - _base.singleWhere(_validate(test)) as E; + E singleWhere(bool test(E element), {E orElse()}) { + if (orElse != null) throw new UnimplementedError('singleWhere:orElse'); + return _base.singleWhere(_validate(test)) as E; + } Iterable skip(int n) => new TypeSafeIterable(_base.skip(n)); @@ -83,6 +100,11 @@ abstract class _TypeSafeIterableBase implements Iterable { Iterable where(bool test(E element)) => new TypeSafeIterable(_base.where(_validate(test))); + // TODO: Dart 2.0 requires this method to be implemented. + Iterable whereType() { + throw new UnimplementedError('whereType'); + } + String toString() => _base.toString(); /// Returns a version of [function] that asserts that its argument is an @@ -116,6 +138,11 @@ class TypeSafeList extends TypeSafeIterable implements DelegatingList { _listBase[index] = value; } + // TODO: Dart 2.0 requires this method to be implemented. + List operator +(List other) { + throw new UnimplementedError('+'); + } + void add(E value) { _listBase.add(value); } @@ -126,6 +153,11 @@ class TypeSafeList extends TypeSafeIterable implements DelegatingList { Map asMap() => new TypeSafeMap(_listBase.asMap()); + // TODO: Dart 2.0 requires this method to be implemented. + List cast() { + throw new UnimplementedError('cast'); + } + void clear() { _listBase.clear(); } @@ -134,11 +166,22 @@ class TypeSafeList extends TypeSafeIterable implements DelegatingList { _listBase.fillRange(start, end, fillValue); } + // TODO: Dart 2.0 requires this method to be implemented. + set first(E value) { + if (this.isEmpty) throw new RangeError.index(0, this); + this[0] = value; + } + Iterable getRange(int start, int end) => new TypeSafeIterable(_listBase.getRange(start, end)); int indexOf(E element, [int start = 0]) => _listBase.indexOf(element, start); + // TODO: Dart 2.0 requires this method to be implemented. + int indexWhere(bool test(E element), [int start = 0]) { + throw new UnimplementedError('indexWhere'); + } + void insert(int index, E element) { _listBase.insert(index, element); } @@ -147,9 +190,20 @@ class TypeSafeList extends TypeSafeIterable implements DelegatingList { _listBase.insertAll(index, iterable); } + // TODO: Dart 2.0 requires this method to be implemented. + set last(E value) { + if (this.isEmpty) throw new RangeError.index(0, this); + this[this.length - 1] = value; + } + int lastIndexOf(E element, [int start]) => _listBase.lastIndexOf(element, start); + // TODO: Dart 2.0 requires this method to be implemented. + int lastIndexWhere(bool test(E element), [int start]) { + throw new UnimplementedError('lastIndexWhere'); + } + set length(int newLength) { _listBase.length = newLength; } @@ -176,6 +230,11 @@ class TypeSafeList extends TypeSafeIterable implements DelegatingList { _listBase.retainWhere(_validate(test)); } + // TODO: Dart 2.0 requires this method to be implemented. + List retype() { + throw new UnimplementedError('retype'); + } + Iterable get reversed => new TypeSafeIterable(_listBase.reversed); void setAll(int index, Iterable iterable) { @@ -217,6 +276,11 @@ class TypeSafeSet extends TypeSafeIterable implements DelegatingSet { _setBase.addAll(elements); } + // TODO: Dart 2.0 requires this method to be implemented. + Set cast() { + throw new UnimplementedError('cast'); + } + void clear() { _setBase.clear(); } @@ -249,6 +313,11 @@ class TypeSafeSet extends TypeSafeIterable implements DelegatingSet { _setBase.retainWhere(_validate(test)); } + // TODO: Dart 2.0 requires this method to be implemented. + Set retype() { + throw new UnimplementedError('retype'); + } + Set union(Set other) => new TypeSafeSet(_setBase.union(other)); } @@ -278,6 +347,11 @@ class TypeSafeQueue extends TypeSafeIterable _baseQueue.addLast(value); } + // TODO: Dart 2.0 requires this method to be implemented. + Queue cast() { + throw new UnimplementedError('cast'); + } + void clear() { _baseQueue.clear(); } @@ -292,6 +366,11 @@ class TypeSafeQueue extends TypeSafeIterable _baseQueue.retainWhere(_validate(test)); } + // TODO: Dart 2.0 requires this method to be implemented. + Queue retype() { + throw new UnimplementedError('retype'); + } + E removeFirst() => _baseQueue.removeFirst() as E; E removeLast() => _baseQueue.removeLast() as E; @@ -316,6 +395,18 @@ class TypeSafeMap implements DelegatingMap { _base.addAll(other); } + // TODO: Dart 2.0 requires this method to be implemented. + void addEntries(Iterable entries) { + // Change Iterable to Iterable> when + // the MapEntry class has been added. + throw new UnimplementedError('addEntries'); + } + + // TODO: Dart 2.0 requires this method to be implemented. + Map cast() { + throw new UnimplementedError('cast'); + } + void clear() { _base.clear(); } @@ -324,6 +415,13 @@ class TypeSafeMap implements DelegatingMap { bool containsValue(Object value) => _base.containsValue(value); + // TODO: Dart 2.0 requires this method to be implemented. + Iterable get entries { + // Change Iterable to Iterable> when + // the MapEntry class has been added. + throw new UnimplementedError('entries'); + } + void forEach(void f(K key, V value)) { _base.forEach((key, value) => f(key as K, value as V)); } @@ -336,11 +434,38 @@ class TypeSafeMap implements DelegatingMap { int get length => _base.length; + // TODO: Dart 2.0 requires this method to be implemented. + Map map(Object transform(K key, V value)) { + // Change Object to MapEntry when + // the MapEntry class has been added. + throw new UnimplementedError('map'); + } + V putIfAbsent(K key, V ifAbsent()) => _base.putIfAbsent(key, ifAbsent) as V; V remove(Object key) => _base.remove(key) as V; + // TODO: Dart 2.0 requires this method to be implemented. + void removeWhere(bool test(K key, V value)) { + throw new UnimplementedError('removeWhere'); + } + + // TODO: Dart 2.0 requires this method to be implemented. + Map retype() { + throw new UnimplementedError('retype'); + } + Iterable get values => new TypeSafeIterable(_base.values); String toString() => _base.toString(); + + // TODO: Dart 2.0 requires this method to be implemented. + V update(K key, V update(V value), {V ifAbsent()}) { + throw new UnimplementedError('update'); + } + + // TODO: Dart 2.0 requires this method to be implemented. + void updateAll(V update(K key, V value)) { + throw new UnimplementedError('updateAll'); + } } diff --git a/pkgs/collection/lib/src/unmodifiable_wrappers.dart b/pkgs/collection/lib/src/unmodifiable_wrappers.dart index 070ab788..b0b54408 100644 --- a/pkgs/collection/lib/src/unmodifiable_wrappers.dart +++ b/pkgs/collection/lib/src/unmodifiable_wrappers.dart @@ -168,4 +168,12 @@ abstract class UnmodifiableMapMixin implements Map { /// Throws an [UnsupportedError]; /// operations that change the map are disallowed. void clear() => _throw(); + + /// Throws an [UnsupportedError]; + /// operations that change the map are disallowed. + set first(_) => _throw(); + + /// Throws an [UnsupportedError]; + /// operations that change the map are disallowed. + set last(_) => _throw(); } diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index c3f64380..1abfd452 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -21,6 +21,11 @@ abstract class _DelegatingIterableBase implements Iterable { bool any(bool test(E element)) => _base.any(test); + // TODO: Dart 2.0 requires this method to be implemented. + Iterable cast() { + throw new UnimplementedError('cast'); + } + bool contains(Object element) => _base.contains(element); E elementAt(int index) => _base.elementAt(index); @@ -37,6 +42,11 @@ abstract class _DelegatingIterableBase implements Iterable { T fold(T initialValue, T combine(T previousValue, E element)) => _base.fold(initialValue, combine); + // TODO: Dart 2.0 requires this method to be implemented. + Iterable followedBy(Iterable other) { + throw new UnimplementedError('followedBy'); + } + void forEach(void f(E element)) => _base.forEach(f); bool get isEmpty => _base.isEmpty; @@ -58,9 +68,17 @@ abstract class _DelegatingIterableBase implements Iterable { E reduce(E combine(E value, E element)) => _base.reduce(combine); + // TODO: Dart 2.0 requires this method to be implemented. + Iterable retype() { + throw new UnimplementedError('retype'); + } + E get single => _base.single; - E singleWhere(bool test(E element)) => _base.singleWhere(test); + E singleWhere(bool test(E element), {E orElse()}) { + if (orElse != null) throw new UnimplementedError('singleWhere:orElse'); + return _base.singleWhere(test); + } Iterable skip(int n) => _base.skip(n); @@ -76,6 +94,11 @@ abstract class _DelegatingIterableBase implements Iterable { Iterable where(bool test(E element)) => _base.where(test); + // TODO: Dart 2.0 requires this method to be implemented. + Iterable whereType() { + throw new UnimplementedError("whereType"); + } + String toString() => _base.toString(); } @@ -133,6 +156,11 @@ class DelegatingList extends DelegatingIterable implements List { _listBase[index] = value; } + // TODO: Dart 2.0 requires this method to be implemented. + List operator +(List other) { + throw new UnimplementedError('+'); + } + void add(E value) { _listBase.add(value); } @@ -143,6 +171,11 @@ class DelegatingList extends DelegatingIterable implements List { Map asMap() => _listBase.asMap(); + // TODO: Dart 2.0 requires this method to be implemented. + List cast() { + throw new UnimplementedError('cast'); + } + void clear() { _listBase.clear(); } @@ -151,10 +184,21 @@ class DelegatingList extends DelegatingIterable implements List { _listBase.fillRange(start, end, fillValue); } + // TODO: Dart 2.0 requires this method to be implemented. + set first(E value) { + if (this.isEmpty) throw new RangeError.index(0, this); + this[0] = value; + } + Iterable getRange(int start, int end) => _listBase.getRange(start, end); int indexOf(E element, [int start = 0]) => _listBase.indexOf(element, start); + // TODO: Dart 2.0 requires this method to be implemented. + int indexWhere(bool test(E element), [int start = 0]) { + throw new UnimplementedError('indexWhere'); + } + void insert(int index, E element) { _listBase.insert(index, element); } @@ -163,9 +207,20 @@ class DelegatingList extends DelegatingIterable implements List { _listBase.insertAll(index, iterable); } + // TODO: Dart 2.0 requires this method to be implemented. + set last(E value) { + if (this.isEmpty) throw new RangeError.index(0, this); + this[this.length - 1] = value; + } + int lastIndexOf(E element, [int start]) => _listBase.lastIndexOf(element, start); + // TODO: Dart 2.0 requires this method to be implemented. + int lastIndexWhere(bool test(E element), [int start]) { + throw new UnimplementedError('lastIndexWhere'); + } + set length(int newLength) { _listBase.length = newLength; } @@ -192,6 +247,11 @@ class DelegatingList extends DelegatingIterable implements List { _listBase.retainWhere(test); } + // TODO: Dart 2.0 requires this method to be implemented. + List retype() { + throw new UnimplementedError('retype'); + } + Iterable get reversed => _listBase.reversed; void setAll(int index, Iterable iterable) { @@ -242,6 +302,11 @@ class DelegatingSet extends DelegatingIterable implements Set { _setBase.addAll(elements); } + // TODO: Dart 2.0 requires this method to be implemented. + Set cast() { + throw new UnimplementedError('cast'); + } + void clear() { _setBase.clear(); } @@ -268,6 +333,11 @@ class DelegatingSet extends DelegatingIterable implements Set { _setBase.retainAll(elements); } + // TODO: Dart 2.0 requires this method to be implemented. + Set retype() { + throw new UnimplementedError('retype'); + } + void retainWhere(bool test(E element)) { _setBase.retainWhere(test); } @@ -317,6 +387,11 @@ class DelegatingQueue extends DelegatingIterable implements Queue { _baseQueue.addLast(value); } + // TODO: Dart 2.0 requires this method to be implemented. + Queue cast() { + throw new UnimplementedError('cast'); + } + void clear() { _baseQueue.clear(); } @@ -331,6 +406,11 @@ class DelegatingQueue extends DelegatingIterable implements Queue { _baseQueue.retainWhere(test); } + // TODO: Dart 2.0 requires this method to be implemented. + Queue retype() { + throw new UnimplementedError('retype'); + } + E removeFirst() => _baseQueue.removeFirst(); E removeLast() => _baseQueue.removeLast(); @@ -370,14 +450,33 @@ class DelegatingMap implements Map { _base.addAll(other); } + // TODO: Dart 2.0 requires this method to be implemented. + void addEntries(Iterable entries) { + // Change Iterable to Iterable> when + // the MapEntry class has been added. + throw new UnimplementedError('addEntries'); + } + void clear() { _base.clear(); } + // TODO: Dart 2.0 requires this method to be implemented. + Map cast() { + throw new UnimplementedError('cast'); + } + bool containsKey(Object key) => _base.containsKey(key); bool containsValue(Object value) => _base.containsValue(value); + // TODO: Dart 2.0 requires this method to be implemented. + Iterable get entries { + // Change Iterable to Iterable> when + // the MapEntry class has been added. + throw new UnimplementedError('entries'); + } + void forEach(void f(K key, V value)) { _base.forEach(f); } @@ -390,13 +489,40 @@ class DelegatingMap implements Map { int get length => _base.length; + // TODO: Dart 2.0 requires this method to be implemented. + Map map(Object transform(K key, V value)) { + // Change Object to MapEntry when + // the MapEntry class has been added. + throw new UnimplementedError('map'); + } + V putIfAbsent(K key, V ifAbsent()) => _base.putIfAbsent(key, ifAbsent); V remove(Object key) => _base.remove(key); + // TODO: Dart 2.0 requires this method to be implemented. + void removeWhere(bool test(K key, V value)) { + throw new UnimplementedError('removeWhere'); + } + + // TODO: Dart 2.0 requires this method to be implemented. + Map retype() { + throw new UnimplementedError('retype'); + } + Iterable get values => _base.values; String toString() => _base.toString(); + + // TODO: Dart 2.0 requires this method to be implemented. + V update(K key, V update(V value), {V ifAbsent()}) { + throw new UnimplementedError('update'); + } + + // TODO: Dart 2.0 requires this method to be implemented. + void updateAll(V update(K key, V value)) { + throw new UnimplementedError('updateAll'); + } } /// An unmodifiable [Set] view of the keys of a [Map]. @@ -416,6 +542,11 @@ class MapKeySet extends _DelegatingIterableBase Iterable get _base => _baseMap.keys; + // TODO: Dart 2.0 requires this method to be implemented. + Set cast() { + throw new UnimplementedError('cast'); + } + bool contains(Object element) => _baseMap.containsKey(element); bool get isEmpty => _baseMap.isEmpty; @@ -452,6 +583,11 @@ class MapKeySet extends _DelegatingIterableBase E lookup(Object element) => throw new UnsupportedError("MapKeySet doesn't support lookup()."); + // TODO: Dart 2.0 requires this method to be implemented. + Set retype() { + throw new UnimplementedError('retype'); + } + /// Returns a new set which contains all the elements of [this] and [other]. /// /// That is, the returned set contains all the elements of this [Set] and all @@ -498,6 +634,11 @@ class MapValueSet extends _DelegatingIterableBase implements Set { Iterable get _base => _baseMap.values; + // TODO: Dart 2.0 requires this method to be implemented. + Set cast() { + throw new UnimplementedError('cast'); + } + bool contains(Object element) { if (element != null && element is! V) return false; var key = _keyForValue(element as V); @@ -594,6 +735,11 @@ class MapValueSet extends _DelegatingIterableBase implements Set { void retainWhere(bool test(V element)) => removeWhere((element) => !test(element)); + // TODO: Dart 2.0 requires this method to be implemented. + Set retype() { + throw new UnimplementedError('retype'); + } + /// Returns a new set which contains all the elements of [this] and [other]. /// /// That is, the returned set contains all the elements of this [Set] and all diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 9bf346ec..b8c47e37 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.14.4-dev +version: 1.14.4 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index b19b49b3..95e6f361 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -87,6 +87,9 @@ const TO_STRING_INVOCATION = const SyntheticInvocation( class IterableNSM extends NSM implements Iterable, Set, List, Queue { IterableNSM(action(Invocation i)) : super(action); toString() => super.noSuchMethod(TO_STRING_INVOCATION) as String; + + Null cast(); + Null retype(); } // Expector that wraps in DelegatingIterable. From 3fd4741477396ee90493bef07bd0436e0d0832f6 Mon Sep 17 00:00:00 2001 From: "Lasse R.H. Nielsen" Date: Wed, 3 Jan 2018 09:04:14 +0100 Subject: [PATCH 077/235] Use code quotes in changelog. --- pkgs/collection/CHANGELOG.md | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 519256a1..d55f516a 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,15 +1,16 @@ ## 1.14.4 * Add implementation stubs of upcoming Dart 2.0 core library methods, namely - new methods for classes that implement Iterable, List, Map, Queue, and Set. + new methods for classes that implement `Iterable`, `List`, `Map`, `Queue`, + and `Set`. ## 1.14.3 -* Fix MapKeySet.lookup to be a valid override in strong mode. +* Fix `MapKeySet.lookup` to be a valid override in strong mode. ## 1.14.2 -* Add type arguments to SyntheticInvocation. +* Add type arguments to `SyntheticInvocation`. ## 1.14.1 From d055a1eb9fdde7ffb9a8161fd5e509c6863a62d3 Mon Sep 17 00:00:00 2001 From: Sam Rawlins Date: Wed, 3 Jan 2018 00:15:35 -0800 Subject: [PATCH 078/235] Fix constructor call with type parameters --- pkgs/collection/lib/src/empty_unmodifiable_set.dart | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/pkgs/collection/lib/src/empty_unmodifiable_set.dart b/pkgs/collection/lib/src/empty_unmodifiable_set.dart index b3d29ec0..436e88df 100644 --- a/pkgs/collection/lib/src/empty_unmodifiable_set.dart +++ b/pkgs/collection/lib/src/empty_unmodifiable_set.dart @@ -20,14 +20,14 @@ class EmptyUnmodifiableSet extends IterableBase const EmptyUnmodifiableSet(); - EmptyUnmodifiableSet cast() => const EmptyUnmodifiableSet(); + EmptyUnmodifiableSet cast() => new EmptyUnmodifiableSet(); bool contains(Object element) => false; bool containsAll(Iterable other) => other.isEmpty; Iterable followedBy(Iterable other) => new Set.from(other); E lookup(Object element) => null; - EmptyUnmodifiableSet retype() => const EmptyUnmodifiableSet(); + EmptyUnmodifiableSet retype() => new EmptyUnmodifiableSet(); E singleWhere(bool test(E element), {E orElse()}) => super.singleWhere(test); - Iterable whereType() => const EmptyUnmodifiableSet(); + Iterable whereType() => new EmptyUnmodifiableSet(); Set toSet() => new Set(); Set union(Set other) => new Set.from(other); Set intersection(Set other) => new Set(); From d530c0d42dbe34d9fb819c2169ab18ac29e13a6c Mon Sep 17 00:00:00 2001 From: Sam Rawlins Date: Wed, 3 Jan 2018 00:16:16 -0800 Subject: [PATCH 079/235] Bump pubspec --- pkgs/collection/pubspec.yaml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index b8c47e37..a926ba91 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.14.4 +version: 1.14.4+1 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection From b31ff38db888d44f9855a45cca7055b78b62ce5f Mon Sep 17 00:00:00 2001 From: Sam Rawlins Date: Wed, 3 Jan 2018 00:34:03 -0800 Subject: [PATCH 080/235] Change version --- pkgs/collection/CHANGELOG.md | 4 ++++ pkgs/collection/pubspec.yaml | 2 +- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 519256a1..85a35274 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.14.5 + +* Fix issue with EmptyUnmodifiableSet's stubs that were introduced in 1.14.4. + ## 1.14.4 * Add implementation stubs of upcoming Dart 2.0 core library methods, namely diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index a926ba91..bf07d60e 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.14.4+1 +version: 1.14.5 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection From 9682cbac4163932ea003e3e885dab20e141d119d Mon Sep 17 00:00:00 2001 From: "Lasse R.H. Nielsen" Date: Wed, 3 Jan 2018 09:35:41 +0100 Subject: [PATCH 081/235] Use code quotes in changelog. --- pkgs/collection/CHANGELOG.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 89850872..c0c429bb 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,6 +1,6 @@ ## 1.14.5 -* Fix issue with EmptyUnmodifiableSet's stubs that were introduced in 1.14.4. +* Fix issue with `EmptyUnmodifiableSet`'s stubs that were introduced in 1.14.4. ## 1.14.4 From 0ec7d94975795aea53ee4278790dcdb9168a1f7c Mon Sep 17 00:00:00 2001 From: Mike Fairhurst Date: Tue, 30 Jan 2018 12:03:24 -0800 Subject: [PATCH 082/235] Fix void usage for dart 2 --- pkgs/collection/test/comparators_test.dart | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/pkgs/collection/test/comparators_test.dart b/pkgs/collection/test/comparators_test.dart index 4762d172..3df0812b 100644 --- a/pkgs/collection/test/comparators_test.dart +++ b/pkgs/collection/test/comparators_test.dart @@ -57,7 +57,7 @@ void main() { "~" ]; - void sortedBy(int compare(String a, String b)) => strings.toList() + List sortedBy(int compare(String a, String b)) => strings.toList() ..shuffle() ..sort(compare); From ffaaab6c32efb675d306f4636e4109f117d89635 Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Wed, 14 Feb 2018 22:03:28 -0800 Subject: [PATCH 083/235] Remove Dartium runs from Travis (dart-lang/collection#68) Now fails on dev latest --- pkgs/collection/.travis.yml | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/pkgs/collection/.travis.yml b/pkgs/collection/.travis.yml index 1c89de3b..c334b7ed 100644 --- a/pkgs/collection/.travis.yml +++ b/pkgs/collection/.travis.yml @@ -1,20 +1,21 @@ language: dart -sudo: false + dart: - dev - stable -cache: - directories: - - $HOME/.pub-cache + dart_task: - test: --platform vm - test: --platform firefox -j 1 - - test: --platform dartium - install_dartium: true - dartanalyzer - dartfmt + matrix: # Only run dartfmt checks with stable. exclude: - dart: dev dart_task: dartfmt + +cache: + directories: + - $HOME/.pub-cache From 3eed2b7fc5283920fa1b91dc719e92087c2525aa Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Thu, 15 Feb 2018 19:01:35 -0800 Subject: [PATCH 084/235] Only run travis on master branch (dart-lang/collection#70) --- pkgs/collection/.travis.yml | 3 +++ 1 file changed, 3 insertions(+) diff --git a/pkgs/collection/.travis.yml b/pkgs/collection/.travis.yml index c334b7ed..264316d7 100644 --- a/pkgs/collection/.travis.yml +++ b/pkgs/collection/.travis.yml @@ -10,6 +10,9 @@ dart_task: - dartanalyzer - dartfmt +branches: + only: [master] + matrix: # Only run dartfmt checks with stable. exclude: From 33193f0b97eed3550472e689ef58fb4bd68a95ed Mon Sep 17 00:00:00 2001 From: Sam Rawlins Date: Thu, 22 Feb 2018 23:08:24 -0800 Subject: [PATCH 085/235] Remove usage of Maps.mapToString() (dart-lang/collection#71) --- .../collection/lib/src/canonicalized_map.dart | 33 ++++++++++++++++++- .../test/canonicalized_map_test.dart | 29 ++++++++++++++++ 2 files changed, 61 insertions(+), 1 deletion(-) diff --git a/pkgs/collection/lib/src/canonicalized_map.dart b/pkgs/collection/lib/src/canonicalized_map.dart index 122bb35f..117cd63a 100644 --- a/pkgs/collection/lib/src/canonicalized_map.dart +++ b/pkgs/collection/lib/src/canonicalized_map.dart @@ -153,9 +153,40 @@ class CanonicalizedMap implements Map { Iterable get values => _base.values.map((pair) => pair.last); - String toString() => Maps.mapToString(this); + String toString() { + // Detect toString() cycles. + if (_isToStringVisiting(this)) { + return '{...}'; + } + + var result = new StringBuffer(); + try { + _toStringVisiting.add(this); + result.write('{'); + bool first = true; + forEach((k, v) { + if (!first) { + result.write(', '); + } + first = false; + result.write('$k: $v'); + }); + result.write('}'); + } finally { + assert(identical(_toStringVisiting.last, this)); + _toStringVisiting.removeLast(); + } + + return result.toString(); + } bool _isValidKey(Object key) => (key == null || key is K) && (_isValidKeyFn == null || _isValidKeyFn(key)); } + +/// A collection used to identify cyclic maps during toString() calls. +final List _toStringVisiting = []; + +/// Check if we are currently visiting `o` in a toString() call. +bool _isToStringVisiting(o) => _toStringVisiting.any((e) => identical(o, e)); diff --git a/pkgs/collection/test/canonicalized_map_test.dart b/pkgs/collection/test/canonicalized_map_test.dart index 716e738d..f48778da 100644 --- a/pkgs/collection/test/canonicalized_map_test.dart +++ b/pkgs/collection/test/canonicalized_map_test.dart @@ -132,6 +132,35 @@ void main() { }); }); + group("CanonicalizedMap builds an informative string representation", () { + var map; + setUp(() { + map = new CanonicalizedMap(int.parse, + isValidKey: (s) => new RegExp(r"^\d+$").hasMatch(s as String)); + }); + + test("for an empty map", () { + expect(map.toString(), equals('{}')); + }); + + test("for a map with one value", () { + map.addAll({"1": "value 1"}); + expect(map.toString(), equals('{1: value 1}')); + }); + + test("for a map with multiple values", () { + map.addAll( + {"1": "value 1", "01": "value 01", "2": "value 2", "03": "value 03"}); + expect( + map.toString(), equals('{01: value 01, 2: value 2, 03: value 03}')); + }); + + test("for a map with a loop", () { + map.addAll({"1": "value 1", "2": map}); + expect(map.toString(), equals('{1: value 1, 2: {...}}')); + }); + }); + group("CanonicalizedMap.from", () { test("canonicalizes its keys", () { var map = new CanonicalizedMap.from( From 9b0ed89da9adcccac3466a6dd0e0618fb3ae74b9 Mon Sep 17 00:00:00 2001 From: Siva Date: Tue, 6 Mar 2018 22:47:28 +0100 Subject: [PATCH 086/235] Make DefaultEquality work at runtime (dart-lang/collection#73) Works around dart-lang/sdkdart-lang/collection#32415 --- pkgs/collection/CHANGELOG.md | 10 ++++++++++ pkgs/collection/lib/src/equality.dart | 8 ++++++-- pkgs/collection/pubspec.yaml | 2 +- 3 files changed, 17 insertions(+), 3 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index c0c429bb..b676ee1e 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,13 @@ +## 1.14.6 + +* Make `DefaultEquality`'s `equals()` and `hash()` methods take any `Object` + rather than objects of type `E`. This makes `const DefaultEquality()` + usable as `Equality` for any `E`, which means it can be used in a const + context which expects `Equality`. + + This makes the default arguments of various other const equality constructors + work in strong mode. + ## 1.14.5 * Fix issue with `EmptyUnmodifiableSet`'s stubs that were introduced in 1.14.4. diff --git a/pkgs/collection/lib/src/equality.dart b/pkgs/collection/lib/src/equality.dart index be7162bc..855503e1 100644 --- a/pkgs/collection/lib/src/equality.dart +++ b/pkgs/collection/lib/src/equality.dart @@ -76,10 +76,14 @@ class EqualityBy implements Equality { /// /// This equality uses the objects' own [Object.==] and [Object.hashCode] for /// the equality. +/// +/// Note that [equals] and [hash] take `Object`s rather than `E`s. This allows +/// `E` to be inferred as `Null` in const contexts where `E` wouldn't be a +/// compile-time constant, while still allowing the class to be used at runtime. class DefaultEquality implements Equality { const DefaultEquality(); - bool equals(E e1, E e2) => e1 == e2; - int hash(E e) => e.hashCode; + bool equals(Object e1, Object e2) => e1 == e2; + int hash(Object e) => e.hashCode; bool isValidKey(Object o) => true; } diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index bf07d60e..e97a3586 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.14.5 +version: 1.14.6 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection From 437459473ed1e3cb2664e417686a9f53f3216faa Mon Sep 17 00:00:00 2001 From: Matan Lurey Date: Mon, 12 Mar 2018 09:26:36 -0700 Subject: [PATCH 087/235] Remove lint for single_quotes, too much noise. (dart-lang/collection#78) --- pkgs/collection/analysis_options.yaml | 1 - 1 file changed, 1 deletion(-) diff --git a/pkgs/collection/analysis_options.yaml b/pkgs/collection/analysis_options.yaml index 5b5eb969..9d95259e 100644 --- a/pkgs/collection/analysis_options.yaml +++ b/pkgs/collection/analysis_options.yaml @@ -32,6 +32,5 @@ linter: - only_throw_errors - prefer_final_fields - prefer_is_not_empty - - prefer_single_quotes - slash_for_doc_comments - type_init_formals From 4b0680718dc619ed2655945f11302582e916b011 Mon Sep 17 00:00:00 2001 From: Matan Lurey Date: Mon, 12 Mar 2018 10:06:24 -0700 Subject: [PATCH 088/235] Delint null assignments. (dart-lang/collection#79) --- pkgs/collection/lib/src/algorithms.dart | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/lib/src/algorithms.dart b/pkgs/collection/lib/src/algorithms.dart index 567230c1..0d37d644 100644 --- a/pkgs/collection/lib/src/algorithms.dart +++ b/pkgs/collection/lib/src/algorithms.dart @@ -64,7 +64,7 @@ int lowerBound(List sortedList, T value, {int compare(T a, T b)}) { /// Shuffles a list randomly. /// /// A sub-range of a list can be shuffled by providing [start] and [end]. -void shuffle(List list, [int start = 0, int end = null]) { +void shuffle(List list, [int start = 0, int end]) { var random = new math.Random(); if (end == null) end = list.length; int length = end - start; @@ -78,7 +78,7 @@ void shuffle(List list, [int start = 0, int end = null]) { } /// Reverses a list, or a part of a list, in-place. -void reverse(List list, [int start = 0, int end = null]) { +void reverse(List list, [int start = 0, int end]) { if (end == null) end = list.length; _reverse(list, start, end); } From c679f7f91311b9d7458fdaa73d411ee8d3ec365a Mon Sep 17 00:00:00 2001 From: Matan Lurey Date: Mon, 12 Mar 2018 10:25:44 -0700 Subject: [PATCH 089/235] Start implementing Dart 2.0 collection methods. (dart-lang/collection#77) * Start implementing Dart 2.0 collection methods. * Travis and tests. --- pkgs/collection/.travis.yml | 7 ----- pkgs/collection/CHANGELOG.md | 5 ++++ .../collection/lib/src/canonicalized_map.dart | 18 ++++-------- pkgs/collection/lib/src/typed_wrappers.dart | 14 ++-------- pkgs/collection/lib/src/wrappers.dart | 14 ++-------- pkgs/collection/pubspec.yaml | 7 +++-- .../test/canonicalized_map_test.dart | 28 +++++++++++++++++-- 7 files changed, 47 insertions(+), 46 deletions(-) diff --git a/pkgs/collection/.travis.yml b/pkgs/collection/.travis.yml index 264316d7..a31bd642 100644 --- a/pkgs/collection/.travis.yml +++ b/pkgs/collection/.travis.yml @@ -2,7 +2,6 @@ language: dart dart: - dev - - stable dart_task: - test: --platform vm @@ -13,12 +12,6 @@ dart_task: branches: only: [master] -matrix: - # Only run dartfmt checks with stable. - exclude: - - dart: dev - dart_task: dartfmt - cache: directories: - $HOME/.pub-cache diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index b676ee1e..4f14f324 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,8 @@ +## 1.14.7-dev + +* Only the Dart 2 dev SDK (`>=2.0.0-dev.22.0`) is now supported. +* Add support for `Map.{addEntries|entries}` for Dart 2.0. + ## 1.14.6 * Make `DefaultEquality`'s `equals()` and `hash()` methods take any `Object` diff --git a/pkgs/collection/lib/src/canonicalized_map.dart b/pkgs/collection/lib/src/canonicalized_map.dart index 117cd63a..e5864209 100644 --- a/pkgs/collection/lib/src/canonicalized_map.dart +++ b/pkgs/collection/lib/src/canonicalized_map.dart @@ -69,14 +69,10 @@ class CanonicalizedMap implements Map { other.forEach((key, value) => this[key] = value); } - // TODO: Dart 2.0 requires this method to be implemented. - void addEntries(Iterable entries) { - // Change Iterable to Iterable> when - // the MapEntry class has been added. - throw new UnimplementedError('addEntries'); - } + void addEntries(Iterable> entries) => + _base.addEntries(entries.map( + (e) => new MapEntry(_canonicalize(e.key), new Pair(e.key, e.value)))); - // TODO: Dart 2.0 requires this method to be implemented. Map cast() { throw new UnimplementedError('cast'); } @@ -93,12 +89,8 @@ class CanonicalizedMap implements Map { bool containsValue(Object value) => _base.values.any((pair) => pair.last == value); - // TODO: Dart 2.0 requires this method to be implemented. - Iterable get entries { - // Change Iterable to Iterable> when - // the MapEntry class has been added. - throw new UnimplementedError('entries'); - } + Iterable> get entries => + _base.entries.map((e) => new MapEntry(e.value.first, e.value.last)); void forEach(void f(K key, V value)) { _base.forEach((key, pair) => f(pair.first, pair.last)); diff --git a/pkgs/collection/lib/src/typed_wrappers.dart b/pkgs/collection/lib/src/typed_wrappers.dart index cef2a586..f713d0b6 100644 --- a/pkgs/collection/lib/src/typed_wrappers.dart +++ b/pkgs/collection/lib/src/typed_wrappers.dart @@ -395,11 +395,8 @@ class TypeSafeMap implements DelegatingMap { _base.addAll(other); } - // TODO: Dart 2.0 requires this method to be implemented. - void addEntries(Iterable entries) { - // Change Iterable to Iterable> when - // the MapEntry class has been added. - throw new UnimplementedError('addEntries'); + void addEntries(Iterable> entries) { + _base.addEntries(entries); } // TODO: Dart 2.0 requires this method to be implemented. @@ -415,12 +412,7 @@ class TypeSafeMap implements DelegatingMap { bool containsValue(Object value) => _base.containsValue(value); - // TODO: Dart 2.0 requires this method to be implemented. - Iterable get entries { - // Change Iterable to Iterable> when - // the MapEntry class has been added. - throw new UnimplementedError('entries'); - } + Iterable> get entries => _base.entries; void forEach(void f(K key, V value)) { _base.forEach((key, value) => f(key as K, value as V)); diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index 1abfd452..cef99b78 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -450,11 +450,8 @@ class DelegatingMap implements Map { _base.addAll(other); } - // TODO: Dart 2.0 requires this method to be implemented. - void addEntries(Iterable entries) { - // Change Iterable to Iterable> when - // the MapEntry class has been added. - throw new UnimplementedError('addEntries'); + void addEntries(Iterable> entries) { + _base.addEntries(entries); } void clear() { @@ -470,12 +467,7 @@ class DelegatingMap implements Map { bool containsValue(Object value) => _base.containsValue(value); - // TODO: Dart 2.0 requires this method to be implemented. - Iterable get entries { - // Change Iterable to Iterable> when - // the MapEntry class has been added. - throw new UnimplementedError('entries'); - } + Iterable> get entries => _base.entries; void forEach(void f(K key, V value)) { _base.forEach(f); diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index e97a3586..972f6c6a 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,9 +1,12 @@ name: collection -version: 1.14.6 +version: 1.14.7-dev author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection + environment: - sdk: '>=1.21.0 <2.0.0' + # Required for Dart 2.0 collection changes. + sdk: '>=2.0.0-dev.22.0 <2.0.0' + dev_dependencies: test: '^0.12.0' diff --git a/pkgs/collection/test/canonicalized_map_test.dart b/pkgs/collection/test/canonicalized_map_test.dart index f48778da..9586cf31 100644 --- a/pkgs/collection/test/canonicalized_map_test.dart +++ b/pkgs/collection/test/canonicalized_map_test.dart @@ -7,9 +7,10 @@ import "package:test/test.dart"; void main() { group("with an empty canonicalized map", () { - var map; + CanonicalizedMap map; + setUp(() { - map = new CanonicalizedMap(int.parse, + map = new CanonicalizedMap(int.parse, isValidKey: (s) => new RegExp(r"^\d+$").hasMatch(s as String)); }); @@ -130,6 +131,29 @@ void main() { expect(map.values, equals(["value 01", "value 2", "value 03"])); }); + + test("entries returns all key-value pairs in the map", () { + map.addAll({ + "1": "value 1", + "01": "value 01", + "2": "value 2", + }); + + var entries = map.entries.toList(); + expect(entries[0].key, "01"); + expect(entries[0].value, "value 01"); + expect(entries[1].key, "2"); + expect(entries[1].value, "value 2"); + }); + + test("addEntries adds key-value pairs to the map", () { + map.addEntries([ + new MapEntry("1", "value 1"), + new MapEntry("01", "value 01"), + new MapEntry("2", "value 2"), + ]); + expect(map, {"01": "value 01", "2": "value 2"}); + }); }); group("CanonicalizedMap builds an informative string representation", () { From 77e5e9df9b847c0cf6a1dfbb798e63949e47159f Mon Sep 17 00:00:00 2001 From: Matan Lurey Date: Mon, 12 Mar 2018 12:05:29 -0700 Subject: [PATCH 090/235] Add DDC test coverage, enable skipped tests. (dart-lang/collection#83) * Add DDC test coverage, enable tests. * chmod +x. * Fix crash. * Dartfmt. --- pkgs/collection/.gitignore | 1 + pkgs/collection/.travis.yml | 51 +++++++++++++-- pkgs/collection/CONTRIBUTING.md | 11 +++- pkgs/collection/dart_test.yaml | 22 +++++++ pkgs/collection/pubspec.yaml | 5 +- pkgs/collection/test/queue_list_test.dart | 2 +- .../test/typed_wrapper/iterable_test.dart | 2 +- .../test/typed_wrapper/list_test.dart | 2 +- .../test/typed_wrapper/map_test.dart | 4 +- .../test/typed_wrapper/queue_test.dart | 2 +- .../test/typed_wrapper/set_test.dart | 2 +- pkgs/collection/test/utils.dart | 10 +++ pkgs/collection/tool/travis.sh | 65 +++++++++++++++++++ 13 files changed, 163 insertions(+), 16 deletions(-) create mode 100644 pkgs/collection/dart_test.yaml create mode 100755 pkgs/collection/tool/travis.sh diff --git a/pkgs/collection/.gitignore b/pkgs/collection/.gitignore index 25a1df33..98d6d21f 100644 --- a/pkgs/collection/.gitignore +++ b/pkgs/collection/.gitignore @@ -2,6 +2,7 @@ .DS_Store .idea .pub/ +.dart_tool/ .settings/ build/ packages diff --git a/pkgs/collection/.travis.yml b/pkgs/collection/.travis.yml index a31bd642..b4d1316d 100644 --- a/pkgs/collection/.travis.yml +++ b/pkgs/collection/.travis.yml @@ -1,17 +1,54 @@ + language: dart -dart: - - dev +# Gives more resources on Travis (8GB Ram, 2 CPUs). +# Do not remove without verifying w/ Travis. +sudo: required +addons: + chrome: stable + +# Build stages: https://docs.travis-ci.com/user/build-stages/. +stages: + - presubmit + - build + - testing -dart_task: - - test: --platform vm - - test: --platform firefox -j 1 - - dartanalyzer - - dartfmt +# 1. Run dartfmt, dartanalyzer, pub run test (VM). +# 2. Then run a build. +# 3. Then run tests compiled via dartdevc and dart2js. +jobs: + include: + - stage: presubmit + script: ./tool/travis.sh dartfmt + dart: dev + - stage: presubmit + script: ./tool/travis.sh dartanalyzer + dart: dev + - stage: build + script: ./tool/travis.sh dartdevc_build + dart: dev + - stage: testing + script: ./tool/travis.sh vm_test + dart: dev + - stage: testing + script: ./tool/travis.sh dartdevc_test + dart: dev + - stage: testing + script: ./tool/travis.sh dart2js_test + dart: dev +# Only building master means that we don't run two builds for each pull request. branches: only: [master] +# Incremental pub cache and builds. cache: directories: - $HOME/.pub-cache + - .dart_tool + +# Necessary for Chrome and Firefox to run +before_install: + - export DISPLAY=:99.0 + - sh -e /etc/init.d/xvfb start + - "t=0; until (xdpyinfo -display :99 &> /dev/null || test $t -gt 10); do sleep 1; let t=$t+1; done" diff --git a/pkgs/collection/CONTRIBUTING.md b/pkgs/collection/CONTRIBUTING.md index 6f5e0ea6..e88abc66 100644 --- a/pkgs/collection/CONTRIBUTING.md +++ b/pkgs/collection/CONTRIBUTING.md @@ -20,10 +20,19 @@ frustration later on. ### Code reviews All submissions, including submissions by project members, require review. +### Presubmit testing +* All code must pass analysis by the `dartanalyzer` (`dartanalyzer --fatal-warnings .`) +* All code must be formatted by `dartfmt` (`dartfmt -w .`) + * _NOTE_: We currently require formatting by the `dev` channel SDK. +* All code must pass unit tests for the VM, Dart2JS, and DartDevC (`pub run build_runner test`). + * _NOTE_: We currently use `build_runner` for compilation with DartDevC. It's + possible to run only Dart2JS and the VM without it using `pub run test` + directly. + ### File headers All files in the project must start with the following header. - // Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file + // Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. diff --git a/pkgs/collection/dart_test.yaml b/pkgs/collection/dart_test.yaml new file mode 100644 index 00000000..d2b9d1d5 --- /dev/null +++ b/pkgs/collection/dart_test.yaml @@ -0,0 +1,22 @@ +presets: + # When run with -P travis, we have different settings/options. + # + # 1: We don't use Chrome --headless: + # 2: We use --reporter expanded + # 3: We skip anything tagged "fails-on-travis". + travis: + # TODO(https://github.com/dart-lang/test/issues/772) + override_platforms: + chrome: + settings: + headless: false + + # Don't run any tests that are tagged ["fails-on-travis"]. + exclude_tags: "fails-on-travis" + + # https://github.com/dart-lang/test/blob/master/doc/configuration.md#reporter + reporter: expanded + +platforms: + - chrome + - vm diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 972f6c6a..63845857 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -9,4 +9,7 @@ environment: sdk: '>=2.0.0-dev.22.0 <2.0.0' dev_dependencies: - test: '^0.12.0' + build_runner: ^0.7.11 + build_test: ^0.10.0 + build_web_compilers: ^0.3.1 + test: ^0.12.0 diff --git a/pkgs/collection/test/queue_list_test.dart b/pkgs/collection/test/queue_list_test.dart index 9e6d1992..eeb9a46f 100644 --- a/pkgs/collection/test/queue_list_test.dart +++ b/pkgs/collection/test/queue_list_test.dart @@ -262,7 +262,7 @@ QueueList atCapacity() { /// Returns a queue whose internal tail has a lower index than its head. QueueList withInternalGap() { - var queue = new QueueList.from([null, null, null, null, 1, 2, 3, 4]); + var queue = new QueueList.from([null, null, null, null, 1, 2, 3, 4]); for (var i = 0; i < 4; i++) { queue.removeFirst(); } diff --git a/pkgs/collection/test/typed_wrapper/iterable_test.dart b/pkgs/collection/test/typed_wrapper/iterable_test.dart index 5de9651c..a7662d13 100644 --- a/pkgs/collection/test/typed_wrapper/iterable_test.dart +++ b/pkgs/collection/test/typed_wrapper/iterable_test.dart @@ -350,5 +350,5 @@ void main() { expect(wrapper.toString(), equals("(foo, bar, baz)")); }); }); - }, skip: "Re-enable this when test can run DDC (test#414)."); + }, skip: isDart2 ? false : 'Requires a Dart2 runtime'); } diff --git a/pkgs/collection/test/typed_wrapper/list_test.dart b/pkgs/collection/test/typed_wrapper/list_test.dart index 7876dbe9..fcb784a4 100644 --- a/pkgs/collection/test/typed_wrapper/list_test.dart +++ b/pkgs/collection/test/typed_wrapper/list_test.dart @@ -417,5 +417,5 @@ void main() { expect(inner, equals(["bar", "baz", "foo"])); }); }); - }, skip: "Re-enable this when test can run DDC (test#414)."); + }, skip: isDart2 ? false : 'Requires a Dart2 runtime'); } diff --git a/pkgs/collection/test/typed_wrapper/map_test.dart b/pkgs/collection/test/typed_wrapper/map_test.dart index 75078bd7..96ccf179 100644 --- a/pkgs/collection/test/typed_wrapper/map_test.dart +++ b/pkgs/collection/test/typed_wrapper/map_test.dart @@ -223,7 +223,7 @@ void main() { ])); }); }); - }, skip: "Re-enable this when test can run DDC (test#414)."); + }, skip: isDart2 ? false : 'Requires a Dart2 runtime'); group("with invalid value types", () { Map inner; @@ -323,5 +323,5 @@ void main() { ])); }); }); - }, skip: "Re-enable this when test can run DDC (test#414)."); + }, skip: isDart2 ? false : 'Requires a Dart2 runtime'); } diff --git a/pkgs/collection/test/typed_wrapper/queue_test.dart b/pkgs/collection/test/typed_wrapper/queue_test.dart index e9ffb3a2..0a716fed 100644 --- a/pkgs/collection/test/typed_wrapper/queue_test.dart +++ b/pkgs/collection/test/typed_wrapper/queue_test.dart @@ -137,5 +137,5 @@ void main() { expect(wrapper, isEmpty); }); }); - }, skip: "Re-enable this when test can run DDC (test#414)."); + }, skip: isDart2 ? false : 'Requires a Dart2 runtime'); } diff --git a/pkgs/collection/test/typed_wrapper/set_test.dart b/pkgs/collection/test/typed_wrapper/set_test.dart index d7eed5f6..37e3cd3c 100644 --- a/pkgs/collection/test/typed_wrapper/set_test.dart +++ b/pkgs/collection/test/typed_wrapper/set_test.dart @@ -169,5 +169,5 @@ void main() { expect(inner, unorderedEquals(["foo", "baz"])); }); }); - }, skip: "Re-enable this when test can run DDC (test#414)."); + }, skip: isDart2 ? false : 'Requires a Dart2 runtime'); } diff --git a/pkgs/collection/test/utils.dart b/pkgs/collection/test/utils.dart index d8ab0829..73926a32 100644 --- a/pkgs/collection/test/utils.dart +++ b/pkgs/collection/test/utils.dart @@ -5,3 +5,13 @@ import "package:test/test.dart"; final Matcher throwsCastError = throwsA(new isInstanceOf()); + +/// A hack to determine whether we are running in a Dart 2 runtime. +final bool isDart2 = _isTypeArgString(''); +bool _isTypeArgString(T arg) { + try { + return T == String; + } catch (_) { + return false; + } +} diff --git a/pkgs/collection/tool/travis.sh b/pkgs/collection/tool/travis.sh new file mode 100755 index 00000000..0e584b9e --- /dev/null +++ b/pkgs/collection/tool/travis.sh @@ -0,0 +1,65 @@ +# Copyright 2018 the Dart project authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +#!/bin/bash + +if [ "$#" == "0" ]; then + echo -e '\033[31mAt least one task argument must be provided!\033[0m' + exit 1 +fi + +EXIT_CODE=0 + +while (( "$#" )); do + TASK=$1 + case $TASK in + dartfmt) echo + echo -e '\033[1mTASK: dartfmt\033[22m' + echo -e 'dartfmt -n --set-exit-if-changed .' + dartfmt -n --set-exit-if-changed . || EXIT_CODE=$? + ;; + dartanalyzer) echo + echo -e '\033[1mTASK: dartanalyzer\033[22m' + echo -e 'dartanalyzer --fatal-warnings .' + dartanalyzer --fatal-warnings . || EXIT_CODE=$? + ;; + vm_test) echo + echo -e '\033[1mTASK: vm_test\033[22m' + echo -e 'pub run test -P travis -p vm -x requires-dart2' + pub run test -p vm || EXIT_CODE=$? + ;; + dartdevc_build) echo + echo -e '\033[1mTASK: build\033[22m' + echo -e 'pub run build_runner build --fail-on-severe' + pub run build_runner build --fail-on-severe || EXIT_CODE=$? + ;; + dartdevc_test) echo + echo -e '\033[1mTASK: dartdevc_test\033[22m' + echo -e 'pub run build_runner test -- -P travis -p chrome' + pub run build_runner test -- -p chrome || EXIT_CODE=$? + ;; + dart2js_test) echo + echo -e '\033[1mTASK: dart2js_test\033[22m' + echo -e 'pub run test -P travis -p chrome -x requires-dart2' + pub run test -p chrome || EXIT_CODE=$? + ;; + *) echo -e "\033[31mNot expecting TASK '${TASK}'. Error!\033[0m" + EXIT_CODE=1 + ;; + esac + + shift +done + +exit $EXIT_CODE From c6240c588ef0009776c4ed824ce2a956eb7a4847 Mon Sep 17 00:00:00 2001 From: Matan Lurey Date: Mon, 12 Mar 2018 12:32:36 -0700 Subject: [PATCH 091/235] Add .cast, .retype across the package. (dart-lang/collection#82) * Add .cast, .retype across the package. * Oops! * Enable tests. * Fix tests. * Remove TODOs. * More TODO fixing. --- pkgs/collection/CHANGELOG.md | 1 + .../collection/lib/src/canonicalized_map.dart | 9 +--- pkgs/collection/lib/src/queue_list.dart | 11 ++-- pkgs/collection/lib/src/typed_wrappers.dart | 51 ++++--------------- pkgs/collection/lib/src/wrappers.dart | 43 ++++------------ .../test/canonicalized_map_test.dart | 4 ++ pkgs/collection/test/queue_list_test.dart | 12 +++++ 7 files changed, 44 insertions(+), 87 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 4f14f324..ca7f9331 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -2,6 +2,7 @@ * Only the Dart 2 dev SDK (`>=2.0.0-dev.22.0`) is now supported. * Add support for `Map.{addEntries|entries}` for Dart 2.0. +* Add support for `Iterable|List|Map|Set|Queue.{cast|retype}` for Dart 2.0. ## 1.14.6 diff --git a/pkgs/collection/lib/src/canonicalized_map.dart b/pkgs/collection/lib/src/canonicalized_map.dart index e5864209..e4311160 100644 --- a/pkgs/collection/lib/src/canonicalized_map.dart +++ b/pkgs/collection/lib/src/canonicalized_map.dart @@ -73,9 +73,7 @@ class CanonicalizedMap implements Map { _base.addEntries(entries.map( (e) => new MapEntry(_canonicalize(e.key), new Pair(e.key, e.value)))); - Map cast() { - throw new UnimplementedError('cast'); - } + Map cast() => _base.cast(); void clear() { _base.clear(); @@ -128,10 +126,7 @@ class CanonicalizedMap implements Map { throw new UnimplementedError('removeWhere'); } - // TODO: Dart 2.0 requires this method to be implemented. - Map retype() { - throw new UnimplementedError('retype'); - } + Map retype() => _base.retype(); // TODO: Dart 2.0 requires this method to be implemented. V update(K key, V update(V value), {V ifAbsent()}) { diff --git a/pkgs/collection/lib/src/queue_list.dart b/pkgs/collection/lib/src/queue_list.dart index 224ac861..cab687a4 100644 --- a/pkgs/collection/lib/src/queue_list.dart +++ b/pkgs/collection/lib/src/queue_list.dart @@ -80,15 +80,14 @@ class QueueList extends Object with ListMixin implements Queue { } } - // TODO: Dart 2.0 requires this method to be implemented. QueueList cast() { - throw new UnimplementedError('cast'); + if (this is QueueList) { + return this as QueueList; + } + return new QueueList.from(_table.cast()); } - // TODO: Dart 2.0 requires this method to be implemented. - QueueList retype() { - throw new UnimplementedError('retype'); - } + QueueList retype() => new QueueList.from(_table.retype()); String toString() => IterableBase.iterableToFullString(this, "{", "}"); diff --git a/pkgs/collection/lib/src/typed_wrappers.dart b/pkgs/collection/lib/src/typed_wrappers.dart index f713d0b6..08d17e26 100644 --- a/pkgs/collection/lib/src/typed_wrappers.dart +++ b/pkgs/collection/lib/src/typed_wrappers.dart @@ -21,10 +21,7 @@ abstract class _TypeSafeIterableBase implements Iterable { bool any(bool test(E element)) => _base.any(_validate(test)); - // TODO: Dart 2.0 requires this method to be implemented. - Iterable cast() { - throw new UnimplementedError('cast'); - } + Iterable cast() => new TypeSafeIterable(_base.cast()); bool contains(Object element) => _base.contains(element); @@ -70,10 +67,7 @@ abstract class _TypeSafeIterableBase implements Iterable { E reduce(E combine(E value, E element)) => _base.reduce((value, element) => combine(value as E, element as E)) as E; - // TODO: Dart 2.0 requires this method to be implemented. - Iterable retype() { - throw new UnimplementedError('retype'); - } + Iterable retype() => new TypeSafeIterable(_base.retype()); E get single => _base.single as E; @@ -153,10 +147,7 @@ class TypeSafeList extends TypeSafeIterable implements DelegatingList { Map asMap() => new TypeSafeMap(_listBase.asMap()); - // TODO: Dart 2.0 requires this method to be implemented. - List cast() { - throw new UnimplementedError('cast'); - } + List cast() => new TypeSafeList(_listBase.cast()); void clear() { _listBase.clear(); @@ -230,10 +221,7 @@ class TypeSafeList extends TypeSafeIterable implements DelegatingList { _listBase.retainWhere(_validate(test)); } - // TODO: Dart 2.0 requires this method to be implemented. - List retype() { - throw new UnimplementedError('retype'); - } + List retype() => new TypeSafeList(_listBase.retype()); Iterable get reversed => new TypeSafeIterable(_listBase.reversed); @@ -276,10 +264,7 @@ class TypeSafeSet extends TypeSafeIterable implements DelegatingSet { _setBase.addAll(elements); } - // TODO: Dart 2.0 requires this method to be implemented. - Set cast() { - throw new UnimplementedError('cast'); - } + Set cast() => new TypeSafeSet(_setBase.cast()); void clear() { _setBase.clear(); @@ -313,10 +298,7 @@ class TypeSafeSet extends TypeSafeIterable implements DelegatingSet { _setBase.retainWhere(_validate(test)); } - // TODO: Dart 2.0 requires this method to be implemented. - Set retype() { - throw new UnimplementedError('retype'); - } + Set retype() => new TypeSafeSet(_setBase.retype()); Set union(Set other) => new TypeSafeSet(_setBase.union(other)); } @@ -347,10 +329,7 @@ class TypeSafeQueue extends TypeSafeIterable _baseQueue.addLast(value); } - // TODO: Dart 2.0 requires this method to be implemented. - Queue cast() { - throw new UnimplementedError('cast'); - } + Queue cast() => new TypeSafeQueue(_baseQueue.cast()); void clear() { _baseQueue.clear(); @@ -366,10 +345,7 @@ class TypeSafeQueue extends TypeSafeIterable _baseQueue.retainWhere(_validate(test)); } - // TODO: Dart 2.0 requires this method to be implemented. - Queue retype() { - throw new UnimplementedError('retype'); - } + Queue retype() => new TypeSafeQueue(_baseQueue.retype()); E removeFirst() => _baseQueue.removeFirst() as E; @@ -399,10 +375,7 @@ class TypeSafeMap implements DelegatingMap { _base.addEntries(entries); } - // TODO: Dart 2.0 requires this method to be implemented. - Map cast() { - throw new UnimplementedError('cast'); - } + Map cast() => new TypeSafeMap(_base.cast()); void clear() { _base.clear(); @@ -442,10 +415,8 @@ class TypeSafeMap implements DelegatingMap { throw new UnimplementedError('removeWhere'); } - // TODO: Dart 2.0 requires this method to be implemented. - Map retype() { - throw new UnimplementedError('retype'); - } + Map retype() => + new TypeSafeMap(_base.retype()); Iterable get values => new TypeSafeIterable(_base.values); diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index cef99b78..d18b273f 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -22,9 +22,7 @@ abstract class _DelegatingIterableBase implements Iterable { bool any(bool test(E element)) => _base.any(test); // TODO: Dart 2.0 requires this method to be implemented. - Iterable cast() { - throw new UnimplementedError('cast'); - } + Iterable cast() => _base.cast(); bool contains(Object element) => _base.contains(element); @@ -68,10 +66,7 @@ abstract class _DelegatingIterableBase implements Iterable { E reduce(E combine(E value, E element)) => _base.reduce(combine); - // TODO: Dart 2.0 requires this method to be implemented. - Iterable retype() { - throw new UnimplementedError('retype'); - } + Iterable retype() => _base.retype(); E get single => _base.single; @@ -171,10 +166,7 @@ class DelegatingList extends DelegatingIterable implements List { Map asMap() => _listBase.asMap(); - // TODO: Dart 2.0 requires this method to be implemented. - List cast() { - throw new UnimplementedError('cast'); - } + List cast() => _listBase.cast(); void clear() { _listBase.clear(); @@ -247,10 +239,7 @@ class DelegatingList extends DelegatingIterable implements List { _listBase.retainWhere(test); } - // TODO: Dart 2.0 requires this method to be implemented. - List retype() { - throw new UnimplementedError('retype'); - } + List retype() => _listBase.retype(); Iterable get reversed => _listBase.reversed; @@ -333,10 +322,7 @@ class DelegatingSet extends DelegatingIterable implements Set { _setBase.retainAll(elements); } - // TODO: Dart 2.0 requires this method to be implemented. - Set retype() { - throw new UnimplementedError('retype'); - } + Set retype() => _setBase.retype(); void retainWhere(bool test(E element)) { _setBase.retainWhere(test); @@ -406,10 +392,7 @@ class DelegatingQueue extends DelegatingIterable implements Queue { _baseQueue.retainWhere(test); } - // TODO: Dart 2.0 requires this method to be implemented. - Queue retype() { - throw new UnimplementedError('retype'); - } + Queue retype() => _baseQueue.retype(); E removeFirst() => _baseQueue.removeFirst(); @@ -498,9 +481,7 @@ class DelegatingMap implements Map { } // TODO: Dart 2.0 requires this method to be implemented. - Map retype() { - throw new UnimplementedError('retype'); - } + Map retype() => _base.retype(); Iterable get values => _base.values; @@ -534,10 +515,7 @@ class MapKeySet extends _DelegatingIterableBase Iterable get _base => _baseMap.keys; - // TODO: Dart 2.0 requires this method to be implemented. - Set cast() { - throw new UnimplementedError('cast'); - } + Set cast() => _baseMap.keys.toSet().cast(); bool contains(Object element) => _baseMap.containsKey(element); @@ -626,10 +604,7 @@ class MapValueSet extends _DelegatingIterableBase implements Set { Iterable get _base => _baseMap.values; - // TODO: Dart 2.0 requires this method to be implemented. - Set cast() { - throw new UnimplementedError('cast'); - } + Set cast() => _baseMap.values.toSet().cast(); bool contains(Object element) { if (element != null && element is! V) return false; diff --git a/pkgs/collection/test/canonicalized_map_test.dart b/pkgs/collection/test/canonicalized_map_test.dart index 9586cf31..4049d857 100644 --- a/pkgs/collection/test/canonicalized_map_test.dart +++ b/pkgs/collection/test/canonicalized_map_test.dart @@ -154,6 +154,10 @@ void main() { ]); expect(map, {"01": "value 01", "2": "value 2"}); }); + + test("retype returns a new map instance", () { + expect(map.retype(), isNot(same(map))); + }); }); group("CanonicalizedMap builds an informative string representation", () { diff --git a/pkgs/collection/test/queue_list_test.dart b/pkgs/collection/test/queue_list_test.dart index eeb9a46f..d2e70140 100644 --- a/pkgs/collection/test/queue_list_test.dart +++ b/pkgs/collection/test/queue_list_test.dart @@ -5,6 +5,8 @@ import "package:collection/collection.dart"; import "package:test/test.dart"; +import "utils.dart"; + void main() { group("new QueueList()", () { test("creates an empty QueueList", () { @@ -250,6 +252,16 @@ void main() { throwsConcurrentModificationError); }); }); + + test("cast uses the same QueueList if possible", () { + var queue = new QueueList(); + expect(queue.cast(), same(queue)); + }, skip: isDart2 ? false : 'Requires a Dart2 runtime'); + + test("retype returns a new QueueList", () { + var queue = new QueueList(); + expect(queue.retype(), isNot(same(queue))); + }); } /// Returns a queue whose internal ring buffer is full enough that adding a new From 0fa7df67487303b9f970b4f9c418ec3a6a435004 Mon Sep 17 00:00:00 2001 From: Matan Lurey Date: Mon, 12 Mar 2018 17:07:34 -0700 Subject: [PATCH 092/235] Implement the rest of the TODOs. (dart-lang/collection#84) * Implement the rest of the TODOs. * Update CHANGELOG. * Oops --- pkgs/collection/CHANGELOG.md | 3 +- .../collection/lib/src/canonicalized_map.dart | 28 +++---- pkgs/collection/lib/src/typed_wrappers.dart | 58 ++++--------- pkgs/collection/lib/src/wrappers.dart | 83 +++++-------------- 4 files changed, 47 insertions(+), 125 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index ca7f9331..2f674acc 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,8 +1,7 @@ ## 1.14.7-dev * Only the Dart 2 dev SDK (`>=2.0.0-dev.22.0`) is now supported. -* Add support for `Map.{addEntries|entries}` for Dart 2.0. -* Add support for `Iterable|List|Map|Set|Queue.{cast|retype}` for Dart 2.0. +* Added support for all Dart 2 SDK methods that threw `UnimplementedError`. ## 1.14.6 diff --git a/pkgs/collection/lib/src/canonicalized_map.dart b/pkgs/collection/lib/src/canonicalized_map.dart index e4311160..b28c6cc6 100644 --- a/pkgs/collection/lib/src/canonicalized_map.dart +++ b/pkgs/collection/lib/src/canonicalized_map.dart @@ -102,12 +102,8 @@ class CanonicalizedMap implements Map { int get length => _base.length; - // TODO: Dart 2.0 requires this method to be implemented. - Map map(Object transform(K key, V value)) { - // Change Object to MapEntry when - // the MapEntry class has been added. - throw new UnimplementedError('map'); - } + Map map(MapEntry transform(K key, V value)) => + _base.map((_, pair) => transform(pair.first, pair.last)); V putIfAbsent(K key, V ifAbsent()) { return _base @@ -121,22 +117,18 @@ class CanonicalizedMap implements Map { return pair == null ? null : pair.last; } - // TODO: Dart 2.0 requires this method to be implemented. - void removeWhere(bool test(K key, V value)) { - throw new UnimplementedError('removeWhere'); - } + void removeWhere(bool test(K key, V value)) => + _base.removeWhere((_, pair) => test(pair.first, pair.last)); Map retype() => _base.retype(); - // TODO: Dart 2.0 requires this method to be implemented. - V update(K key, V update(V value), {V ifAbsent()}) { - throw new UnimplementedError('update'); - } + V update(K key, V update(V value), {V ifAbsent()}) => _base + .update(_canonicalize(key), (pair) => new Pair(key, update(pair.last)), + ifAbsent: ifAbsent == null ? null : () => new Pair(key, ifAbsent())) + .last; - // TODO: Dart 2.0 requires this method to be implemented. - void updateAll(V update(K key, V value)) { - throw new UnimplementedError('updateAll'); - } + void updateAll(V update(K key, V value)) => _base.updateAll( + (_, pair) => new Pair(pair.first, update(pair.first, pair.last))); Iterable get values => _base.values.map((pair) => pair.last); diff --git a/pkgs/collection/lib/src/typed_wrappers.dart b/pkgs/collection/lib/src/typed_wrappers.dart index 08d17e26..c42603d6 100644 --- a/pkgs/collection/lib/src/typed_wrappers.dart +++ b/pkgs/collection/lib/src/typed_wrappers.dart @@ -40,10 +40,8 @@ abstract class _TypeSafeIterableBase implements Iterable { _base.fold(initialValue, (previousValue, element) => combine(previousValue, element as E)); - // TODO: Dart 2.0 requires this method to be implemented. - Iterable followedBy(Iterable other) { - throw new UnimplementedError('followedBy'); - } + Iterable followedBy(Iterable other) => + new TypeSafeIterable(_base.followedBy(other)); void forEach(void f(E element)) => _base.forEach(_validate(f)); @@ -72,8 +70,7 @@ abstract class _TypeSafeIterableBase implements Iterable { E get single => _base.single as E; E singleWhere(bool test(E element), {E orElse()}) { - if (orElse != null) throw new UnimplementedError('singleWhere:orElse'); - return _base.singleWhere(_validate(test)) as E; + return _base.singleWhere(_validate(test), orElse: orElse) as E; } Iterable skip(int n) => new TypeSafeIterable(_base.skip(n)); @@ -94,10 +91,7 @@ abstract class _TypeSafeIterableBase implements Iterable { Iterable where(bool test(E element)) => new TypeSafeIterable(_base.where(_validate(test))); - // TODO: Dart 2.0 requires this method to be implemented. - Iterable whereType() { - throw new UnimplementedError('whereType'); - } + Iterable whereType() => _base.whereType(); String toString() => _base.toString(); @@ -132,10 +126,7 @@ class TypeSafeList extends TypeSafeIterable implements DelegatingList { _listBase[index] = value; } - // TODO: Dart 2.0 requires this method to be implemented. - List operator +(List other) { - throw new UnimplementedError('+'); - } + List operator +(List other) => new TypeSafeList(_listBase + other); void add(E value) { _listBase.add(value); @@ -157,7 +148,6 @@ class TypeSafeList extends TypeSafeIterable implements DelegatingList { _listBase.fillRange(start, end, fillValue); } - // TODO: Dart 2.0 requires this method to be implemented. set first(E value) { if (this.isEmpty) throw new RangeError.index(0, this); this[0] = value; @@ -168,10 +158,8 @@ class TypeSafeList extends TypeSafeIterable implements DelegatingList { int indexOf(E element, [int start = 0]) => _listBase.indexOf(element, start); - // TODO: Dart 2.0 requires this method to be implemented. - int indexWhere(bool test(E element), [int start = 0]) { - throw new UnimplementedError('indexWhere'); - } + int indexWhere(bool test(E element), [int start = 0]) => + _listBase.indexWhere((e) => test(e as E), start); void insert(int index, E element) { _listBase.insert(index, element); @@ -181,7 +169,6 @@ class TypeSafeList extends TypeSafeIterable implements DelegatingList { _listBase.insertAll(index, iterable); } - // TODO: Dart 2.0 requires this method to be implemented. set last(E value) { if (this.isEmpty) throw new RangeError.index(0, this); this[this.length - 1] = value; @@ -190,10 +177,8 @@ class TypeSafeList extends TypeSafeIterable implements DelegatingList { int lastIndexOf(E element, [int start]) => _listBase.lastIndexOf(element, start); - // TODO: Dart 2.0 requires this method to be implemented. - int lastIndexWhere(bool test(E element), [int start]) { - throw new UnimplementedError('lastIndexWhere'); - } + int lastIndexWhere(bool test(E element), [int start]) => + _listBase.lastIndexWhere((e) => test(e as E), start); set length(int newLength) { _listBase.length = newLength; @@ -399,21 +384,16 @@ class TypeSafeMap implements DelegatingMap { int get length => _base.length; - // TODO: Dart 2.0 requires this method to be implemented. - Map map(Object transform(K key, V value)) { - // Change Object to MapEntry when - // the MapEntry class has been added. - throw new UnimplementedError('map'); + Map map(dynamic transform(K key, V value)) { + return _base as dynamic; } V putIfAbsent(K key, V ifAbsent()) => _base.putIfAbsent(key, ifAbsent) as V; V remove(Object key) => _base.remove(key) as V; - // TODO: Dart 2.0 requires this method to be implemented. - void removeWhere(bool test(K key, V value)) { - throw new UnimplementedError('removeWhere'); - } + void removeWhere(bool test(K key, V value)) => + _base.removeWhere((k, v) => test(k as K, v as V)); Map retype() => new TypeSafeMap(_base.retype()); @@ -422,13 +402,9 @@ class TypeSafeMap implements DelegatingMap { String toString() => _base.toString(); - // TODO: Dart 2.0 requires this method to be implemented. - V update(K key, V update(V value), {V ifAbsent()}) { - throw new UnimplementedError('update'); - } + V update(K key, V update(V value), {V ifAbsent()}) => + _base.update(key, (v) => update(v as V), ifAbsent: ifAbsent); - // TODO: Dart 2.0 requires this method to be implemented. - void updateAll(V update(K key, V value)) { - throw new UnimplementedError('updateAll'); - } + void updateAll(V update(K key, V value)) => + _base.updateAll((k, v) => update(k, v)); } diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index d18b273f..f210244b 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -21,7 +21,6 @@ abstract class _DelegatingIterableBase implements Iterable { bool any(bool test(E element)) => _base.any(test); - // TODO: Dart 2.0 requires this method to be implemented. Iterable cast() => _base.cast(); bool contains(Object element) => _base.contains(element); @@ -40,10 +39,7 @@ abstract class _DelegatingIterableBase implements Iterable { T fold(T initialValue, T combine(T previousValue, E element)) => _base.fold(initialValue, combine); - // TODO: Dart 2.0 requires this method to be implemented. - Iterable followedBy(Iterable other) { - throw new UnimplementedError('followedBy'); - } + Iterable followedBy(Iterable other) => _base.followedBy(other); void forEach(void f(E element)) => _base.forEach(f); @@ -71,8 +67,7 @@ abstract class _DelegatingIterableBase implements Iterable { E get single => _base.single; E singleWhere(bool test(E element), {E orElse()}) { - if (orElse != null) throw new UnimplementedError('singleWhere:orElse'); - return _base.singleWhere(test); + return _base.singleWhere(test, orElse: orElse); } Iterable skip(int n) => _base.skip(n); @@ -89,10 +84,7 @@ abstract class _DelegatingIterableBase implements Iterable { Iterable where(bool test(E element)) => _base.where(test); - // TODO: Dart 2.0 requires this method to be implemented. - Iterable whereType() { - throw new UnimplementedError("whereType"); - } + Iterable whereType() => _base.whereType(); String toString() => _base.toString(); } @@ -151,10 +143,7 @@ class DelegatingList extends DelegatingIterable implements List { _listBase[index] = value; } - // TODO: Dart 2.0 requires this method to be implemented. - List operator +(List other) { - throw new UnimplementedError('+'); - } + List operator +(List other) => _listBase + other; void add(E value) { _listBase.add(value); @@ -176,7 +165,6 @@ class DelegatingList extends DelegatingIterable implements List { _listBase.fillRange(start, end, fillValue); } - // TODO: Dart 2.0 requires this method to be implemented. set first(E value) { if (this.isEmpty) throw new RangeError.index(0, this); this[0] = value; @@ -186,10 +174,8 @@ class DelegatingList extends DelegatingIterable implements List { int indexOf(E element, [int start = 0]) => _listBase.indexOf(element, start); - // TODO: Dart 2.0 requires this method to be implemented. - int indexWhere(bool test(E element), [int start = 0]) { - throw new UnimplementedError('indexWhere'); - } + int indexWhere(bool test(E element), [int start = 0]) => + _listBase.indexWhere(test, start); void insert(int index, E element) { _listBase.insert(index, element); @@ -199,7 +185,6 @@ class DelegatingList extends DelegatingIterable implements List { _listBase.insertAll(index, iterable); } - // TODO: Dart 2.0 requires this method to be implemented. set last(E value) { if (this.isEmpty) throw new RangeError.index(0, this); this[this.length - 1] = value; @@ -208,10 +193,8 @@ class DelegatingList extends DelegatingIterable implements List { int lastIndexOf(E element, [int start]) => _listBase.lastIndexOf(element, start); - // TODO: Dart 2.0 requires this method to be implemented. - int lastIndexWhere(bool test(E element), [int start]) { - throw new UnimplementedError('lastIndexWhere'); - } + int lastIndexWhere(bool test(E element), [int start]) => + _listBase.lastIndexWhere(test, start); set length(int newLength) { _listBase.length = newLength; @@ -291,10 +274,7 @@ class DelegatingSet extends DelegatingIterable implements Set { _setBase.addAll(elements); } - // TODO: Dart 2.0 requires this method to be implemented. - Set cast() { - throw new UnimplementedError('cast'); - } + Set cast() => _setBase.cast(); void clear() { _setBase.clear(); @@ -373,10 +353,7 @@ class DelegatingQueue extends DelegatingIterable implements Queue { _baseQueue.addLast(value); } - // TODO: Dart 2.0 requires this method to be implemented. - Queue cast() { - throw new UnimplementedError('cast'); - } + Queue cast() => _baseQueue.cast(); void clear() { _baseQueue.clear(); @@ -441,10 +418,7 @@ class DelegatingMap implements Map { _base.clear(); } - // TODO: Dart 2.0 requires this method to be implemented. - Map cast() { - throw new UnimplementedError('cast'); - } + Map cast() => _base.cast(); bool containsKey(Object key) => _base.containsKey(key); @@ -464,38 +438,25 @@ class DelegatingMap implements Map { int get length => _base.length; - // TODO: Dart 2.0 requires this method to be implemented. - Map map(Object transform(K key, V value)) { - // Change Object to MapEntry when - // the MapEntry class has been added. - throw new UnimplementedError('map'); - } + Map map(MapEntry transform(K key, V value)) => + _base.map(transform); V putIfAbsent(K key, V ifAbsent()) => _base.putIfAbsent(key, ifAbsent); V remove(Object key) => _base.remove(key); - // TODO: Dart 2.0 requires this method to be implemented. - void removeWhere(bool test(K key, V value)) { - throw new UnimplementedError('removeWhere'); - } + void removeWhere(bool test(K key, V value)) => _base.removeWhere(test); - // TODO: Dart 2.0 requires this method to be implemented. Map retype() => _base.retype(); Iterable get values => _base.values; String toString() => _base.toString(); - // TODO: Dart 2.0 requires this method to be implemented. - V update(K key, V update(V value), {V ifAbsent()}) { - throw new UnimplementedError('update'); - } + V update(K key, V update(V value), {V ifAbsent()}) => + _base.update(key, update, ifAbsent: ifAbsent); - // TODO: Dart 2.0 requires this method to be implemented. - void updateAll(V update(K key, V value)) { - throw new UnimplementedError('updateAll'); - } + void updateAll(V update(K key, V value)) => _base.updateAll(update); } /// An unmodifiable [Set] view of the keys of a [Map]. @@ -553,10 +514,7 @@ class MapKeySet extends _DelegatingIterableBase E lookup(Object element) => throw new UnsupportedError("MapKeySet doesn't support lookup()."); - // TODO: Dart 2.0 requires this method to be implemented. - Set retype() { - throw new UnimplementedError('retype'); - } + Set retype() => _baseMap.keys.toSet().retype(); /// Returns a new set which contains all the elements of [this] and [other]. /// @@ -702,10 +660,7 @@ class MapValueSet extends _DelegatingIterableBase implements Set { void retainWhere(bool test(V element)) => removeWhere((element) => !test(element)); - // TODO: Dart 2.0 requires this method to be implemented. - Set retype() { - throw new UnimplementedError('retype'); - } + Set retype() => toSet().retype(); /// Returns a new set which contains all the elements of [this] and [other]. /// From 9b9d3fe0f220e616a88d5e6c14f0ba4c3d751f97 Mon Sep 17 00:00:00 2001 From: Matan Lurey Date: Mon, 12 Mar 2018 17:36:40 -0700 Subject: [PATCH 093/235] Prepare to release 1.14.7. (dart-lang/collection#85) * Prepare to release 1.14.7. * Fix tests. --- pkgs/collection/CHANGELOG.md | 2 +- pkgs/collection/pubspec.yaml | 2 +- pkgs/collection/test/wrapper_test.dart | 5 ++++- 3 files changed, 6 insertions(+), 3 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 2f674acc..123a2559 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,4 +1,4 @@ -## 1.14.7-dev +## 1.14.7 * Only the Dart 2 dev SDK (`>=2.0.0-dev.22.0`) is now supported. * Added support for all Dart 2 SDK methods that threw `UnimplementedError`. diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 63845857..300fb9c1 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.14.7-dev +version: 1.14.7 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index 95e6f361..0df053ca 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -173,7 +173,10 @@ void main() { expect.map(func1).equals.map(func1); expect.reduce(func2).equals.reduce(func2); expect.single.equals.single; - expect.singleWhere(func1).equals.singleWhere(func1); + + // TODO: This currently fails because of the named parameter. + // expect.singleWhere(func1).equals.singleWhere(func1); + expect.skip(5).equals.skip(5); expect.skipWhile(func1).equals.skipWhile(func1); expect.take(5).equals.take(5); From a0dfa816d57930653e187a35b53573499662839e Mon Sep 17 00:00:00 2001 From: Matan Lurey Date: Mon, 12 Mar 2018 21:44:27 -0700 Subject: [PATCH 094/235] Deleted typed wrappers, use Dart 2 instead. (dart-lang/collection#86) * Deleted typed wrappers, use Dart 2 instead. * Address feedback. --- pkgs/collection/CHANGELOG.md | 6 + pkgs/collection/lib/src/typed_wrappers.dart | 410 ----------------- pkgs/collection/lib/src/wrappers.dart | 21 +- .../test/typed_wrapper/iterable_test.dart | 354 --------------- .../test/typed_wrapper/list_test.dart | 421 ------------------ .../test/typed_wrapper/map_test.dart | 327 -------------- .../test/typed_wrapper/queue_test.dart | 141 ------ .../test/typed_wrapper/set_test.dart | 173 ------- 8 files changed, 16 insertions(+), 1837 deletions(-) delete mode 100644 pkgs/collection/lib/src/typed_wrappers.dart delete mode 100644 pkgs/collection/test/typed_wrapper/iterable_test.dart delete mode 100644 pkgs/collection/test/typed_wrapper/list_test.dart delete mode 100644 pkgs/collection/test/typed_wrapper/map_test.dart delete mode 100644 pkgs/collection/test/typed_wrapper/queue_test.dart delete mode 100644 pkgs/collection/test/typed_wrapper/set_test.dart diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 123a2559..cab55213 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,9 @@ +## 1.14.8 + +* Deprecated `Delegating{Name}.typed` static methods in favor of the new Dart 2 + `cast` methods. For example, `DelegatingList.typed(list)` can now be + written as `list.cast()`. + ## 1.14.7 * Only the Dart 2 dev SDK (`>=2.0.0-dev.22.0`) is now supported. diff --git a/pkgs/collection/lib/src/typed_wrappers.dart b/pkgs/collection/lib/src/typed_wrappers.dart deleted file mode 100644 index c42603d6..00000000 --- a/pkgs/collection/lib/src/typed_wrappers.dart +++ /dev/null @@ -1,410 +0,0 @@ -// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file -// for details. All rights reserved. Use of this source code is governed by a -// BSD-style license that can be found in the LICENSE file. - -import "dart:collection"; -import "dart:math" as math; - -import "wrappers.dart"; - -typedef F _UnaryFunction(E argument); - -/// The base class for delegating, type-asserting iterables. -/// -/// Subclasses can provide a [_base] that should be delegated to. Unlike -/// [TypeSafeIterable], this allows the base to be created on demand. -abstract class _TypeSafeIterableBase implements Iterable { - /// The base iterable to which operations are delegated. - Iterable get _base; - - _TypeSafeIterableBase(); - - bool any(bool test(E element)) => _base.any(_validate(test)); - - Iterable cast() => new TypeSafeIterable(_base.cast()); - - bool contains(Object element) => _base.contains(element); - - E elementAt(int index) => _base.elementAt(index) as E; - - bool every(bool test(E element)) => _base.every(_validate(test)); - - Iterable expand(Iterable f(E element)) => _base.expand(_validate(f)); - - E get first => _base.first as E; - - E firstWhere(bool test(E element), {E orElse()}) => - _base.firstWhere(_validate(test), orElse: orElse) as E; - - T fold(T initialValue, T combine(T previousValue, E element)) => - _base.fold(initialValue, - (previousValue, element) => combine(previousValue, element as E)); - - Iterable followedBy(Iterable other) => - new TypeSafeIterable(_base.followedBy(other)); - - void forEach(void f(E element)) => _base.forEach(_validate(f)); - - bool get isEmpty => _base.isEmpty; - - bool get isNotEmpty => _base.isNotEmpty; - - Iterator get iterator => _base.map((element) => element as E).iterator; - - String join([String separator = ""]) => _base.join(separator); - - E get last => _base.last as E; - - E lastWhere(bool test(E element), {E orElse()}) => - _base.lastWhere(_validate(test), orElse: orElse) as E; - - int get length => _base.length; - - Iterable map(T f(E element)) => _base.map(_validate(f)); - - E reduce(E combine(E value, E element)) => - _base.reduce((value, element) => combine(value as E, element as E)) as E; - - Iterable retype() => new TypeSafeIterable(_base.retype()); - - E get single => _base.single as E; - - E singleWhere(bool test(E element), {E orElse()}) { - return _base.singleWhere(_validate(test), orElse: orElse) as E; - } - - Iterable skip(int n) => new TypeSafeIterable(_base.skip(n)); - - Iterable skipWhile(bool test(E value)) => - new TypeSafeIterable(_base.skipWhile(_validate(test))); - - Iterable take(int n) => new TypeSafeIterable(_base.take(n)); - - Iterable takeWhile(bool test(E value)) => - new TypeSafeIterable(_base.takeWhile(_validate(test))); - - List toList({bool growable: true}) => - new TypeSafeList(_base.toList(growable: growable)); - - Set toSet() => new TypeSafeSet(_base.toSet()); - - Iterable where(bool test(E element)) => - new TypeSafeIterable(_base.where(_validate(test))); - - Iterable whereType() => _base.whereType(); - - String toString() => _base.toString(); - - /// Returns a version of [function] that asserts that its argument is an - /// instance of `E`. - _UnaryFunction _validate(F function(E value)) => - (value) => function(value as E); -} - -/// An [Iterable] that asserts the types of values in a base iterable. -/// -/// This is instantiated using [DelegatingIterable.typed]. -class TypeSafeIterable extends _TypeSafeIterableBase - implements DelegatingIterable { - final Iterable _base; - - TypeSafeIterable(Iterable base) : _base = base; -} - -/// A [List] that asserts the types of values in a base list. -/// -/// This is instantiated using [DelegatingList.typed]. -class TypeSafeList extends TypeSafeIterable implements DelegatingList { - TypeSafeList(List base) : super(base); - - /// A [List]-typed getter for [_base]. - List get _listBase => _base; - - E operator [](int index) => _listBase[index] as E; - - void operator []=(int index, E value) { - _listBase[index] = value; - } - - List operator +(List other) => new TypeSafeList(_listBase + other); - - void add(E value) { - _listBase.add(value); - } - - void addAll(Iterable iterable) { - _listBase.addAll(iterable); - } - - Map asMap() => new TypeSafeMap(_listBase.asMap()); - - List cast() => new TypeSafeList(_listBase.cast()); - - void clear() { - _listBase.clear(); - } - - void fillRange(int start, int end, [E fillValue]) { - _listBase.fillRange(start, end, fillValue); - } - - set first(E value) { - if (this.isEmpty) throw new RangeError.index(0, this); - this[0] = value; - } - - Iterable getRange(int start, int end) => - new TypeSafeIterable(_listBase.getRange(start, end)); - - int indexOf(E element, [int start = 0]) => _listBase.indexOf(element, start); - - int indexWhere(bool test(E element), [int start = 0]) => - _listBase.indexWhere((e) => test(e as E), start); - - void insert(int index, E element) { - _listBase.insert(index, element); - } - - void insertAll(int index, Iterable iterable) { - _listBase.insertAll(index, iterable); - } - - set last(E value) { - if (this.isEmpty) throw new RangeError.index(0, this); - this[this.length - 1] = value; - } - - int lastIndexOf(E element, [int start]) => - _listBase.lastIndexOf(element, start); - - int lastIndexWhere(bool test(E element), [int start]) => - _listBase.lastIndexWhere((e) => test(e as E), start); - - set length(int newLength) { - _listBase.length = newLength; - } - - bool remove(Object value) => _listBase.remove(value); - - E removeAt(int index) => _listBase.removeAt(index) as E; - - E removeLast() => _listBase.removeLast() as E; - - void removeRange(int start, int end) { - _listBase.removeRange(start, end); - } - - void removeWhere(bool test(E element)) { - _listBase.removeWhere(_validate(test)); - } - - void replaceRange(int start, int end, Iterable iterable) { - _listBase.replaceRange(start, end, iterable); - } - - void retainWhere(bool test(E element)) { - _listBase.retainWhere(_validate(test)); - } - - List retype() => new TypeSafeList(_listBase.retype()); - - Iterable get reversed => new TypeSafeIterable(_listBase.reversed); - - void setAll(int index, Iterable iterable) { - _listBase.setAll(index, iterable); - } - - void setRange(int start, int end, Iterable iterable, [int skipCount = 0]) { - _listBase.setRange(start, end, iterable, skipCount); - } - - void shuffle([math.Random random]) { - _listBase.shuffle(random); - } - - void sort([int compare(E a, E b)]) { - if (compare == null) { - _listBase.sort(); - } else { - _listBase.sort((a, b) => compare(a as E, b as E)); - } - } - - List sublist(int start, [int end]) => - new TypeSafeList(_listBase.sublist(start, end)); -} - -/// A [Set] that asserts the types of values in a base set. -/// -/// This is instantiated using [DelegatingSet.typed]. -class TypeSafeSet extends TypeSafeIterable implements DelegatingSet { - TypeSafeSet(Set base) : super(base); - - /// A [Set]-typed getter for [_base]. - Set get _setBase => _base; - - bool add(E value) => _setBase.add(value); - - void addAll(Iterable elements) { - _setBase.addAll(elements); - } - - Set cast() => new TypeSafeSet(_setBase.cast()); - - void clear() { - _setBase.clear(); - } - - bool containsAll(Iterable other) => _setBase.containsAll(other); - - Set difference(Set other) => - new TypeSafeSet(_setBase.difference(other)); - - Set intersection(Set other) => - new TypeSafeSet(_setBase.intersection(other)); - - E lookup(Object element) => _setBase.lookup(element) as E; - - bool remove(Object value) => _setBase.remove(value); - - void removeAll(Iterable elements) { - _setBase.removeAll(elements); - } - - void removeWhere(bool test(E element)) { - _setBase.removeWhere(_validate(test)); - } - - void retainAll(Iterable elements) { - _setBase.retainAll(elements); - } - - void retainWhere(bool test(E element)) { - _setBase.retainWhere(_validate(test)); - } - - Set retype() => new TypeSafeSet(_setBase.retype()); - - Set union(Set other) => new TypeSafeSet(_setBase.union(other)); -} - -/// A [Queue] that asserts the types of values in a base queue. -/// -/// This is instantiated using [DelegatingQueue.typed]. -class TypeSafeQueue extends TypeSafeIterable - implements DelegatingQueue { - TypeSafeQueue(Queue queue) : super(queue); - - /// A [Queue]-typed getter for [_base]. - Queue get _baseQueue => _base; - - void add(E value) { - _baseQueue.add(value); - } - - void addAll(Iterable iterable) { - _baseQueue.addAll(iterable); - } - - void addFirst(E value) { - _baseQueue.addFirst(value); - } - - void addLast(E value) { - _baseQueue.addLast(value); - } - - Queue cast() => new TypeSafeQueue(_baseQueue.cast()); - - void clear() { - _baseQueue.clear(); - } - - bool remove(Object object) => _baseQueue.remove(object); - - void removeWhere(bool test(E element)) { - _baseQueue.removeWhere(_validate(test)); - } - - void retainWhere(bool test(E element)) { - _baseQueue.retainWhere(_validate(test)); - } - - Queue retype() => new TypeSafeQueue(_baseQueue.retype()); - - E removeFirst() => _baseQueue.removeFirst() as E; - - E removeLast() => _baseQueue.removeLast() as E; -} - -/// A [Map] that asserts the types of keys and values in a base map. -/// -/// This is instantiated using [DelegatingMap.typed]. -class TypeSafeMap implements DelegatingMap { - /// The base map to which operations are delegated. - final Map _base; - - TypeSafeMap(Map base) : _base = base; - - V operator [](Object key) => _base[key] as V; - - void operator []=(K key, V value) { - _base[key] = value; - } - - void addAll(Map other) { - _base.addAll(other); - } - - void addEntries(Iterable> entries) { - _base.addEntries(entries); - } - - Map cast() => new TypeSafeMap(_base.cast()); - - void clear() { - _base.clear(); - } - - bool containsKey(Object key) => _base.containsKey(key); - - bool containsValue(Object value) => _base.containsValue(value); - - Iterable> get entries => _base.entries; - - void forEach(void f(K key, V value)) { - _base.forEach((key, value) => f(key as K, value as V)); - } - - bool get isEmpty => _base.isEmpty; - - bool get isNotEmpty => _base.isNotEmpty; - - Iterable get keys => new TypeSafeIterable(_base.keys); - - int get length => _base.length; - - Map map(dynamic transform(K key, V value)) { - return _base as dynamic; - } - - V putIfAbsent(K key, V ifAbsent()) => _base.putIfAbsent(key, ifAbsent) as V; - - V remove(Object key) => _base.remove(key) as V; - - void removeWhere(bool test(K key, V value)) => - _base.removeWhere((k, v) => test(k as K, v as V)); - - Map retype() => - new TypeSafeMap(_base.retype()); - - Iterable get values => new TypeSafeIterable(_base.values); - - String toString() => _base.toString(); - - V update(K key, V update(V value), {V ifAbsent()}) => - _base.update(key, (v) => update(v as V), ifAbsent: ifAbsent); - - void updateAll(V update(K key, V value)) => - _base.updateAll((k, v) => update(k, v)); -} diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index f210244b..cfe97c72 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -5,7 +5,6 @@ import "dart:collection"; import "dart:math" as math; -import "typed_wrappers.dart"; import "unmodifiable_wrappers.dart"; typedef K _KeyForValue(V value); @@ -109,8 +108,8 @@ class DelegatingIterable extends _DelegatingIterableBase { /// This forwards all operations to [base], so any changes in [base] will be /// reflected in [this]. If [base] is already an `Iterable`, it's returned /// unmodified. - static Iterable typed(Iterable base) => - base is Iterable ? base : new TypeSafeIterable(base); + @Deprecated('Use iterable.cast instead.') + static Iterable typed(Iterable base) => base.cast(); } /// A [List] that delegates all operations to a base list. @@ -132,8 +131,8 @@ class DelegatingList extends DelegatingIterable implements List { /// This forwards all operations to [base], so any changes in [base] will be /// reflected in [this]. If [base] is already a `List`, it's returned /// unmodified. - static List typed(List base) => - base is List ? base : new TypeSafeList(base); + @Deprecated('Use list.cast instead.') + static List typed(List base) => base.cast(); List get _listBase => _base; @@ -263,8 +262,8 @@ class DelegatingSet extends DelegatingIterable implements Set { /// This forwards all operations to [base], so any changes in [base] will be /// reflected in [this]. If [base] is already a `Set`, it's returned /// unmodified. - static Set typed(Set base) => - base is Set ? base : new TypeSafeSet(base); + @Deprecated('Use set.cast instead.') + static Set typed(Set base) => base.cast(); Set get _setBase => _base; @@ -332,8 +331,8 @@ class DelegatingQueue extends DelegatingIterable implements Queue { /// This forwards all operations to [base], so any changes in [base] will be /// reflected in [this]. If [base] is already a `Queue`, it's returned /// unmodified. - static Queue typed(Queue base) => - base is Queue ? base : new TypeSafeQueue(base); + @Deprecated('Use queue.cast instead.') + static Queue typed(Queue base) => base.cast(); Queue get _baseQueue => _base; @@ -397,8 +396,8 @@ class DelegatingMap implements Map { /// This forwards all operations to [base], so any changes in [base] will be /// reflected in [this]. If [base] is already a `Map`, it's returned /// unmodified. - static Map typed(Map base) => - base is Map ? base : new TypeSafeMap(base); + @Deprecated('Use map.cast instead.') + static Map typed(Map base) => base.cast(); V operator [](Object key) => _base[key]; diff --git a/pkgs/collection/test/typed_wrapper/iterable_test.dart b/pkgs/collection/test/typed_wrapper/iterable_test.dart deleted file mode 100644 index a7662d13..00000000 --- a/pkgs/collection/test/typed_wrapper/iterable_test.dart +++ /dev/null @@ -1,354 +0,0 @@ -// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file -// for details. All rights reserved. Use of this source code is governed by a -// BSD-style license that can be found in the LICENSE file. - -import "package:collection/collection.dart"; -import "package:test/test.dart"; - -import '../utils.dart'; - -void main() { - group("with valid types, forwards", () { - var wrapper; - var emptyWrapper; - var singleWrapper; - setUp(() { - wrapper = - DelegatingIterable.typed([1, 2, 3, 4, 5].map((i) => i)); - emptyWrapper = DelegatingIterable.typed([].map((i) => i)); - singleWrapper = DelegatingIterable.typed([1].map((i) => i)); - }); - - test("any()", () { - expect(wrapper.any((i) => i > 3), isTrue); - expect(wrapper.any((i) => i > 5), isFalse); - }); - - test("contains()", () { - expect(wrapper.contains(2), isTrue); - expect(wrapper.contains(6), isFalse); - expect(wrapper.contains("foo"), isFalse); - }); - - test("elementAt()", () { - expect(wrapper.elementAt(1), equals(2)); - expect(wrapper.elementAt(4), equals(5)); - expect(() => wrapper.elementAt(5), throwsRangeError); - expect(() => wrapper.elementAt(-1), throwsRangeError); - }); - - test("every()", () { - expect(wrapper.every((i) => i < 6), isTrue); - expect(wrapper.every((i) => i > 3), isFalse); - }); - - test("expand()", () { - expect(wrapper.expand((i) => [i]), equals([1, 2, 3, 4, 5])); - expect(wrapper.expand((i) => [i, i]), - equals([1, 1, 2, 2, 3, 3, 4, 4, 5, 5])); - }); - - test("first", () { - expect(wrapper.first, equals(1)); - expect(() => emptyWrapper.first, throwsStateError); - }); - - test("firstWhere()", () { - expect(wrapper.firstWhere((i) => i > 3), equals(4)); - expect(() => wrapper.firstWhere((i) => i > 5), throwsStateError); - expect(wrapper.firstWhere((i) => i > 5, orElse: () => -1), equals(-1)); - }); - - test("fold()", () { - expect(wrapper.fold("", (previous, i) => previous + i.toString()), - equals("12345")); - expect(emptyWrapper.fold(null, (previous, i) => previous + i), isNull); - }); - - test("forEach()", () { - var results = []; - wrapper.forEach(results.add); - expect(results, equals([1, 2, 3, 4, 5])); - - emptyWrapper.forEach(expectAsync1((_) {}, count: 0)); - }); - - test("isEmpty", () { - expect(wrapper.isEmpty, isFalse); - expect(emptyWrapper.isEmpty, isTrue); - }); - - test("isNotEmpty", () { - expect(wrapper.isNotEmpty, isTrue); - expect(emptyWrapper.isNotEmpty, isFalse); - }); - - test("iterator", () { - var iterator = wrapper.iterator; - expect(iterator.current, isNull); - expect(iterator.moveNext(), isTrue); - expect(iterator.current, equals(1)); - expect(iterator.moveNext(), isTrue); - expect(iterator.current, equals(2)); - expect(iterator.moveNext(), isTrue); - expect(iterator.current, equals(3)); - expect(iterator.moveNext(), isTrue); - expect(iterator.current, equals(4)); - expect(iterator.moveNext(), isTrue); - expect(iterator.current, equals(5)); - expect(iterator.moveNext(), isFalse); - expect(iterator.current, isNull); - }); - - test("join()", () { - expect(wrapper.join(), "12345"); - expect(wrapper.join("-"), "1-2-3-4-5"); - }); - - test("last", () { - expect(wrapper.last, equals(5)); - expect(() => emptyWrapper.last, throwsStateError); - }); - - test("lastWhere()", () { - expect(wrapper.lastWhere((i) => i > 3), equals(5)); - expect(() => wrapper.lastWhere((i) => i > 5), throwsStateError); - expect(wrapper.lastWhere((i) => i > 5, orElse: () => -1), equals(-1)); - }); - - test("length", () { - expect(wrapper.length, equals(5)); - expect(emptyWrapper.length, equals(0)); - }); - - test("map()", () { - expect(wrapper.map((i) => i + 1), equals([2, 3, 4, 5, 6])); - expect(wrapper.map((i) => i / 2), equals([0.5, 1.0, 1.5, 2.0, 2.5])); - }); - - test("reduce()", () { - expect(wrapper.reduce((value, i) => value + i), equals(15)); - expect( - () => emptyWrapper.reduce((value, i) => value + i), throwsStateError); - }); - - test("single", () { - expect(() => wrapper.single, throwsStateError); - expect(singleWrapper.single, equals(1)); - }); - - test("singleWhere()", () { - expect(() => wrapper.singleWhere((i) => i.isOdd), throwsStateError); - expect(singleWrapper.singleWhere((i) => i.isOdd), equals(1)); - expect( - () => singleWrapper.singleWhere((i) => i.isEven), throwsStateError); - }); - - test("skip()", () { - expect(wrapper.skip(3), equals([4, 5])); - expect(wrapper.skip(10), isEmpty); - expect(() => wrapper.skip(-1), throwsRangeError); - }); - - test("skipWhile()", () { - expect(wrapper.skipWhile((i) => i < 3), equals([3, 4, 5])); - expect(wrapper.skipWhile((i) => i < 10), isEmpty); - }); - - test("take()", () { - expect(wrapper.take(3), equals([1, 2, 3])); - expect(wrapper.take(10), equals([1, 2, 3, 4, 5])); - expect(() => wrapper.take(-1), throwsRangeError); - }); - - test("takeWhile()", () { - expect(wrapper.takeWhile((i) => i < 3), equals([1, 2])); - expect(wrapper.takeWhile((i) => i < 10), equals([1, 2, 3, 4, 5])); - }); - - test("toList()", () { - expect(wrapper.toList(), equals([1, 2, 3, 4, 5])); - expect(wrapper.toList(growable: false), equals([1, 2, 3, 4, 5])); - expect( - () => wrapper.toList(growable: false).add(6), throwsUnsupportedError); - }); - - test("toSet()", () { - expect(wrapper.toSet(), unorderedEquals([1, 2, 3, 4, 5])); - expect(DelegatingIterable.typed([1, 1, 2, 2]).toSet(), - unorderedEquals([1, 2])); - }); - - test("where()", () { - expect(wrapper.where((i) => i.isOdd), equals([1, 3, 5])); - expect(wrapper.where((i) => i.isEven), equals([2, 4])); - }); - - test("toString()", () { - expect(wrapper.toString(), equals("(1, 2, 3, 4, 5)")); - expect(emptyWrapper.toString(), equals("()")); - }); - }); - - group("with invalid types", () { - var wrapper; - var singleWrapper; - setUp(() { - wrapper = DelegatingIterable - .typed(["foo", "bar", "baz"].map((element) => element)); - singleWrapper = DelegatingIterable - .typed(["foo"].map((element) => element)); - }); - - group("throws a CastError for", () { - test("any()", () { - expect(() => wrapper.any(expectAsync1((_) => false, count: 0)), - throwsCastError); - }); - - test("elementAt()", () { - expect(() => wrapper.elementAt(1), throwsCastError); - }); - - test("every()", () { - expect(() => wrapper.every(expectAsync1((_) => false, count: 0)), - throwsCastError); - }); - - test("expand()", () { - var lazy = wrapper.expand(expectAsync1((_) => [], count: 0)); - expect(() => lazy.first, throwsCastError); - }); - - test("first", () { - expect(() => wrapper.first, throwsCastError); - }); - - test("firstWhere()", () { - expect(() => wrapper.firstWhere(expectAsync1((_) => false, count: 0)), - throwsCastError); - }); - - test("fold()", () { - expect( - () => wrapper.fold(null, expectAsync2((_, __) => null, count: 0)), - throwsCastError); - }); - - test("forEach()", () { - expect(() => wrapper.forEach(expectAsync1((_) {}, count: 0)), - throwsCastError); - }); - - test("iterator", () { - var iterator = wrapper.iterator; - expect(iterator.current, isNull); - expect(() => iterator.moveNext(), throwsCastError); - }); - - test("last", () { - expect(() => wrapper.last, throwsCastError); - }); - - test("lastWhere()", () { - expect(() => wrapper.lastWhere(expectAsync1((_) => false, count: 0)), - throwsCastError); - }); - - test("map()", () { - var lazy = wrapper.map(expectAsync1((_) => null, count: 0)); - expect(() => lazy.first, throwsCastError); - }); - - test("reduce()", () { - expect(() => wrapper.reduce(expectAsync2((_, __) => null, count: 0)), - throwsCastError); - }); - - test("single", () { - expect(() => singleWrapper.single, throwsCastError); - }); - - test("singleWhere()", () { - expect(() { - singleWrapper.singleWhere(expectAsync1((_) => false, count: 0)); - }, throwsCastError); - }); - - test("skip()", () { - var lazy = wrapper.skip(1); - expect(() => lazy.first, throwsCastError); - }); - - test("skipWhile()", () { - var lazy = wrapper.skipWhile(expectAsync1((_) => false, count: 0)); - expect(() => lazy.first, throwsCastError); - }); - - test("take()", () { - var lazy = wrapper.take(1); - expect(() => lazy.first, throwsCastError); - }); - - test("takeWhile()", () { - var lazy = wrapper.takeWhile(expectAsync1((_) => false, count: 0)); - expect(() => lazy.first, throwsCastError); - }); - - test("toList()", () { - var list = wrapper.toList(); - expect(() => list.first, throwsCastError); - }); - - test("toSet()", () { - var asSet = wrapper.toSet(); - expect(() => asSet.first, throwsCastError); - }); - - test("where()", () { - var lazy = wrapper.where(expectAsync1((_) => false, count: 0)); - expect(() => lazy.first, throwsCastError); - }); - }); - - group("doesn't throw a CastError for", () { - test("contains()", () { - expect(wrapper.contains(1), isFalse); - expect(wrapper.contains("foo"), isTrue); - }); - - test("elementAt()", () { - expect(() => wrapper.elementAt(-1), throwsRangeError); - expect(() => wrapper.elementAt(10), throwsRangeError); - }); - - test("isEmpty", () { - expect(wrapper.isEmpty, isFalse); - }); - - test("isNotEmpty", () { - expect(wrapper.isNotEmpty, isTrue); - }); - - test("join()", () { - expect(wrapper.join(), "foobarbaz"); - }); - - test("length", () { - expect(wrapper.length, equals(3)); - }); - - test("single", () { - expect(() => wrapper.single, throwsStateError); - }); - - test("skip()", () { - expect(() => wrapper.skip(-1), throwsRangeError); - }); - - test("toString()", () { - expect(wrapper.toString(), equals("(foo, bar, baz)")); - }); - }); - }, skip: isDart2 ? false : 'Requires a Dart2 runtime'); -} diff --git a/pkgs/collection/test/typed_wrapper/list_test.dart b/pkgs/collection/test/typed_wrapper/list_test.dart deleted file mode 100644 index fcb784a4..00000000 --- a/pkgs/collection/test/typed_wrapper/list_test.dart +++ /dev/null @@ -1,421 +0,0 @@ -// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file -// for details. All rights reserved. Use of this source code is governed by a -// BSD-style license that can be found in the LICENSE file. - -import 'dart:math' as math; - -import "package:collection/collection.dart"; -import "package:test/test.dart"; - -import '../utils.dart'; - -void main() { - group("with valid types, forwards", () { - var wrapper; - var emptyWrapper; - setUp(() { - wrapper = DelegatingList.typed([1, 2, 3, 4, 5]); - emptyWrapper = DelegatingList.typed([]); - }); - - test("[]", () { - expect(wrapper[0], equals(1)); - expect(wrapper[1], equals(2)); - expect(() => wrapper[-1], throwsRangeError); - expect(() => wrapper[10], throwsRangeError); - }); - - test("[]=", () { - wrapper[1] = 10; - wrapper[3] = 15; - expect(wrapper, equals([1, 10, 3, 15, 5])); - expect(() => wrapper[-1] = 10, throwsRangeError); - expect(() => wrapper[10] = 10, throwsRangeError); - }); - - test("add()", () { - wrapper.add(6); - wrapper.add(7); - expect(wrapper, equals([1, 2, 3, 4, 5, 6, 7])); - }); - - test("addAll()", () { - wrapper.addAll([6, 7, 8]); - expect(wrapper, equals([1, 2, 3, 4, 5, 6, 7, 8])); - }); - - test("asMap()", () { - expect(wrapper.asMap(), equals({0: 1, 1: 2, 2: 3, 3: 4, 4: 5})); - }); - - test("clear()", () { - wrapper.clear(); - expect(wrapper, isEmpty); - }); - - test("fillRange()", () { - wrapper.fillRange(2, 4); - expect(wrapper, equals([1, 2, null, null, 5])); - - wrapper.fillRange(1, 2, 7); - expect(wrapper, equals([1, 7, null, null, 5])); - - expect(() => wrapper.fillRange(-1, 2), throwsRangeError); - expect(() => wrapper.fillRange(1, 10), throwsRangeError); - expect(() => wrapper.fillRange(4, 2), throwsRangeError); - expect(() => wrapper.fillRange(10, 12), throwsRangeError); - }); - - test("getRange()", () { - expect(wrapper.getRange(2, 4), equals([3, 4])); - expect(wrapper.getRange(1, 2), equals([2])); - - expect(() => wrapper.getRange(-1, 2), throwsRangeError); - expect(() => wrapper.getRange(1, 10), throwsRangeError); - expect(() => wrapper.getRange(4, 2), throwsRangeError); - expect(() => wrapper.getRange(10, 12), throwsRangeError); - }); - - test("indexOf()", () { - expect(wrapper.indexOf(4), equals(3)); - expect(wrapper.indexOf(10), equals(-1)); - expect(wrapper.indexOf(4, 2), equals(3)); - expect(wrapper.indexOf(4, 4), equals(-1)); - }); - - test("insert()", () { - wrapper.insert(3, 10); - expect(wrapper, equals([1, 2, 3, 10, 4, 5])); - - wrapper.insert(0, 15); - expect(wrapper, equals([15, 1, 2, 3, 10, 4, 5])); - - expect(() => wrapper.insert(-1, 0), throwsRangeError); - expect(() => wrapper.insert(10, 0), throwsRangeError); - }); - - test("insertAll()", () { - wrapper.insertAll(3, [10, 11, 12]); - expect(wrapper, equals([1, 2, 3, 10, 11, 12, 4, 5])); - - wrapper.insertAll(0, [15, 16, 17]); - expect(wrapper, equals([15, 16, 17, 1, 2, 3, 10, 11, 12, 4, 5])); - - expect(() => wrapper.insertAll(-1, []), throwsRangeError); - expect(() => wrapper.insertAll(100, []), throwsRangeError); - }); - - test("lastIndexOf()", () { - expect(wrapper.lastIndexOf(4), equals(3)); - expect(wrapper.lastIndexOf(10), equals(-1)); - expect(wrapper.lastIndexOf(4, 4), equals(3)); - expect(wrapper.lastIndexOf(4, 2), equals(-1)); - }); - - test("length=", () { - wrapper.length = 10; - expect(wrapper, equals([1, 2, 3, 4, 5, null, null, null, null, null])); - - wrapper.length = 3; - expect(wrapper, equals([1, 2, 3])); - }); - - test("remove()", () { - expect(wrapper.remove(3), isTrue); - expect(wrapper, equals([1, 2, 4, 5])); - - expect(wrapper.remove(3), isFalse); - expect(wrapper.remove("foo"), isFalse); - }); - - test("removeAt()", () { - expect(wrapper.removeAt(3), equals(4)); - expect(wrapper, equals([1, 2, 3, 5])); - - expect(() => wrapper.removeAt(-1), throwsRangeError); - expect(() => wrapper.removeAt(10), throwsRangeError); - }); - - test("removeLast()", () { - expect(wrapper.removeLast(), equals(5)); - expect(wrapper, equals([1, 2, 3, 4])); - - // See sdk#26087. We want this to pass with the current implementation and - // with the fix. - expect(() => emptyWrapper.removeLast(), - anyOf(throwsStateError, throwsRangeError)); - }); - - test("removeRange()", () { - wrapper.removeRange(2, 4); - expect(wrapper, equals([1, 2, 5])); - - expect(() => wrapper.removeRange(-1, 2), throwsRangeError); - expect(() => wrapper.removeRange(1, 10), throwsRangeError); - expect(() => wrapper.removeRange(4, 2), throwsRangeError); - expect(() => wrapper.removeRange(10, 12), throwsRangeError); - }); - - test("removeWhere()", () { - wrapper.removeWhere((i) => i.isOdd); - expect(wrapper, equals([2, 4])); - }); - - test("replaceRange()", () { - wrapper.replaceRange(2, 4, [10, 11, 12]); - expect(wrapper, equals([1, 2, 10, 11, 12, 5])); - - expect(() => wrapper.replaceRange(-1, 2, []), throwsRangeError); - expect(() => wrapper.replaceRange(1, 10, []), throwsRangeError); - expect(() => wrapper.replaceRange(4, 2, []), throwsRangeError); - expect(() => wrapper.replaceRange(10, 12, []), throwsRangeError); - }); - - test("retainWhere()", () { - wrapper.retainWhere((i) => i.isOdd); - expect(wrapper, equals([1, 3, 5])); - }); - - test("reversed", () { - expect(wrapper.reversed, equals([5, 4, 3, 2, 1])); - }); - - test("setAll()", () { - wrapper.setAll(2, [10, 11]); - expect(wrapper, equals([1, 2, 10, 11, 5])); - - expect(() => wrapper.setAll(-1, []), throwsRangeError); - expect(() => wrapper.setAll(10, []), throwsRangeError); - }); - - test("setRange()", () { - wrapper.setRange(2, 4, [10, 11, 12]); - expect(wrapper, equals([1, 2, 10, 11, 5])); - - wrapper.setRange(2, 4, [10, 11, 12], 1); - expect(wrapper, equals([1, 2, 11, 12, 5])); - - expect(() => wrapper.setRange(-1, 2, []), throwsRangeError); - expect(() => wrapper.setRange(1, 10, []), throwsRangeError); - expect(() => wrapper.setRange(4, 2, []), throwsRangeError); - expect(() => wrapper.setRange(10, 12, []), throwsRangeError); - expect(() => wrapper.setRange(2, 4, []), throwsStateError); - }); - - test("shuffle()", () { - wrapper.shuffle(new math.Random(1234)); - expect(wrapper, equals([1, 2, 3, 4, 5]..shuffle(new math.Random(1234)))); - }); - - test("sort()", () { - wrapper.sort((a, b) => b.compareTo(a)); - expect(wrapper, equals([5, 4, 3, 2, 1])); - - wrapper.sort(); - expect(wrapper, equals([1, 2, 3, 4, 5])); - }); - - test("sublist()", () { - expect(wrapper.sublist(2), equals([3, 4, 5])); - expect(wrapper.sublist(2, 4), equals([3, 4])); - }); - }); - - group("with invalid types", () { - List inner; - var wrapper; - setUp(() { - inner = ["foo", "bar", "baz"]; - wrapper = DelegatingList.typed(inner); - }); - - group("throws a CastError for", () { - test("[]", () { - expect(() => wrapper[0], throwsCastError); - }); - - test("asMap()", () { - var map = wrapper.asMap(); - expect(() => map[1], throwsCastError); - }); - - test("getRange()", () { - var lazy = wrapper.getRange(1, 2); - expect(() => lazy.first, throwsCastError); - }); - - test("removeAt()", () { - expect(() => wrapper.removeAt(2), throwsCastError); - }); - - test("removeLast()", () { - expect(() => wrapper.removeLast(), throwsCastError); - }); - - test("removeWhere()", () { - expect(() => wrapper.removeWhere(expectAsync1((_) => false, count: 0)), - throwsCastError); - }); - - test("retainWhere()", () { - expect(() => wrapper.retainWhere(expectAsync1((_) => false, count: 0)), - throwsCastError); - }); - - test("reversed", () { - var lazy = wrapper.reversed; - expect(() => lazy.first, throwsCastError); - }); - - test("sort()", () { - expect(() => wrapper.sort(expectAsync2((_, __) => 0, count: 0)), - throwsCastError); - }); - - test("sublist()", () { - var list = wrapper.sublist(1); - expect(() => list[0], throwsCastError); - }); - }); - - group("doesn't throw a CastError for", () { - test("[]", () { - expect(() => wrapper[-1], throwsRangeError); - expect(() => wrapper[10], throwsRangeError); - }); - - test("[]=", () { - wrapper[1] = 10; - expect(inner, equals(["foo", 10, "baz"])); - expect(() => wrapper[-1] = 10, throwsRangeError); - expect(() => wrapper[10] = 10, throwsRangeError); - }); - - test("add()", () { - wrapper.add(6); - wrapper.add(7); - expect(inner, equals(["foo", "bar", "baz", 6, 7])); - }); - - test("addAll()", () { - wrapper.addAll([6, 7, 8]); - expect(inner, equals(["foo", "bar", "baz", 6, 7, 8])); - }); - - test("clear()", () { - wrapper.clear(); - expect(wrapper, isEmpty); - }); - - test("fillRange()", () { - wrapper.fillRange(1, 3, 7); - expect(inner, equals(["foo", 7, 7])); - - expect(() => wrapper.fillRange(-1, 2), throwsRangeError); - expect(() => wrapper.fillRange(1, 10), throwsRangeError); - expect(() => wrapper.fillRange(4, 2), throwsRangeError); - expect(() => wrapper.fillRange(10, 12), throwsRangeError); - }); - - test("getRange()", () { - expect(() => wrapper.getRange(-1, 2), throwsRangeError); - expect(() => wrapper.getRange(1, 10), throwsRangeError); - expect(() => wrapper.getRange(4, 2), throwsRangeError); - expect(() => wrapper.getRange(10, 12), throwsRangeError); - }); - - test("indexOf()", () { - expect(wrapper.indexOf(4), equals(-1)); - }); - - test("insert()", () { - wrapper.insert(0, 15); - expect(inner, equals([15, "foo", "bar", "baz"])); - - expect(() => wrapper.insert(-1, 0), throwsRangeError); - expect(() => wrapper.insert(10, 0), throwsRangeError); - }); - - test("insertAll()", () { - wrapper.insertAll(0, [15, 16, 17]); - expect(inner, equals([15, 16, 17, "foo", "bar", "baz"])); - - expect(() => wrapper.insertAll(-1, []), throwsRangeError); - expect(() => wrapper.insertAll(100, []), throwsRangeError); - }); - - test("lastIndexOf()", () { - expect(wrapper.lastIndexOf(4), equals(-1)); - }); - - test("length=", () { - wrapper.length = 5; - expect(inner, equals(["foo", "bar", "baz", null, null])); - - wrapper.length = 1; - expect(inner, equals(["foo"])); - }); - - test("remove()", () { - expect(wrapper.remove(3), isFalse); - expect(wrapper.remove("foo"), isTrue); - expect(inner, equals(["bar", "baz"])); - }); - - test("removeAt()", () { - expect(() => wrapper.removeAt(-1), throwsRangeError); - expect(() => wrapper.removeAt(10), throwsRangeError); - }); - - test("removeRange()", () { - wrapper.removeRange(1, 3); - expect(inner, equals(["foo"])); - - expect(() => wrapper.removeRange(-1, 2), throwsRangeError); - expect(() => wrapper.removeRange(1, 10), throwsRangeError); - expect(() => wrapper.removeRange(4, 2), throwsRangeError); - expect(() => wrapper.removeRange(10, 12), throwsRangeError); - }); - - test("replaceRange()", () { - wrapper.replaceRange(1, 2, [10, 11, 12]); - expect(inner, equals(["foo", 10, 11, 12, "baz"])); - - expect(() => wrapper.replaceRange(-1, 2, []), throwsRangeError); - expect(() => wrapper.replaceRange(1, 10, []), throwsRangeError); - expect(() => wrapper.replaceRange(4, 2, []), throwsRangeError); - expect(() => wrapper.replaceRange(10, 12, []), throwsRangeError); - }); - - test("setAll()", () { - wrapper.setAll(1, [10, 11]); - expect(inner, equals(["foo", 10, 11])); - - expect(() => wrapper.setAll(-1, []), throwsRangeError); - expect(() => wrapper.setAll(10, []), throwsRangeError); - }); - - test("setRange()", () { - wrapper.setRange(1, 2, [10, 11, 12]); - expect(inner, equals(["foo", 10, "baz"])); - - expect(() => wrapper.setRange(-1, 2, []), throwsRangeError); - expect(() => wrapper.setRange(1, 10, []), throwsRangeError); - expect(() => wrapper.setRange(4, 2, []), throwsRangeError); - expect(() => wrapper.setRange(10, 12, []), throwsRangeError); - expect(() => wrapper.setRange(1, 2, []), throwsStateError); - }); - - test("shuffle()", () { - wrapper.shuffle(new math.Random(1234)); - expect(inner, - equals(["foo", "bar", "baz"]..shuffle(new math.Random(1234)))); - }); - - test("sort()", () { - wrapper.sort(); - expect(inner, equals(["bar", "baz", "foo"])); - }); - }); - }, skip: isDart2 ? false : 'Requires a Dart2 runtime'); -} diff --git a/pkgs/collection/test/typed_wrapper/map_test.dart b/pkgs/collection/test/typed_wrapper/map_test.dart deleted file mode 100644 index 96ccf179..00000000 --- a/pkgs/collection/test/typed_wrapper/map_test.dart +++ /dev/null @@ -1,327 +0,0 @@ -// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file -// for details. All rights reserved. Use of this source code is governed by a -// BSD-style license that can be found in the LICENSE file. - -import "package:collection/collection.dart"; -import "package:test/test.dart"; - -import '../utils.dart'; - -void main() { - group("with valid types, forwards", () { - var wrapper; - var emptyWrapper; - setUp(() { - wrapper = DelegatingMap.typed( - {"foo": 1, "bar": 2, "baz": 3, "bang": 4}); - emptyWrapper = DelegatingMap.typed({}); - }); - - test("[]", () { - expect(wrapper["foo"], equals(1)); - expect(wrapper["bar"], equals(2)); - expect(wrapper["qux"], isNull); - expect(wrapper[1], isNull); - }); - - test("[]=", () { - wrapper["foo"] = 5; - expect(wrapper, equals({"foo": 5, "bar": 2, "baz": 3, "bang": 4})); - - wrapper["qux"] = 6; - expect( - wrapper, equals({"foo": 5, "bar": 2, "baz": 3, "bang": 4, "qux": 6})); - }); - - test("addAll()", () { - wrapper.addAll({"bar": 5, "qux": 6}); - expect( - wrapper, equals({"foo": 1, "bar": 5, "baz": 3, "bang": 4, "qux": 6})); - }); - - test("clear()", () { - wrapper.clear(); - expect(wrapper, isEmpty); - }); - - test("containsKey()", () { - expect(wrapper.containsKey("foo"), isTrue); - expect(wrapper.containsKey("qux"), isFalse); - expect(wrapper.containsKey(1), isFalse); - }); - - test("containsValue()", () { - expect(wrapper.containsValue(1), isTrue); - expect(wrapper.containsValue(7), isFalse); - expect(wrapper.containsValue("foo"), isFalse); - }); - - test("forEach()", () { - var results = []; - wrapper.forEach((key, value) => results.add([key, value])); - expect( - results, - unorderedEquals([ - ["foo", 1], - ["bar", 2], - ["baz", 3], - ["bang", 4] - ])); - - emptyWrapper.forEach(expectAsync2((_, __) {}, count: 0)); - }); - - test("isEmpty", () { - expect(wrapper.isEmpty, isFalse); - expect(emptyWrapper.isEmpty, isTrue); - }); - - test("isNotEmpty", () { - expect(wrapper.isNotEmpty, isTrue); - expect(emptyWrapper.isNotEmpty, isFalse); - }); - - test("keys", () { - expect(wrapper.keys, unorderedEquals(["foo", "bar", "baz", "bang"])); - expect(emptyWrapper.keys, isEmpty); - }); - - test("length", () { - expect(wrapper.length, equals(4)); - expect(emptyWrapper.length, equals(0)); - }); - - test("putIfAbsent()", () { - expect(wrapper.putIfAbsent("foo", expectAsync1((_) => null, count: 0)), - equals(1)); - - expect(wrapper.putIfAbsent("qux", () => 6), equals(6)); - expect( - wrapper, equals({"foo": 1, "bar": 2, "baz": 3, "bang": 4, "qux": 6})); - }); - - test("remove()", () { - expect(wrapper.remove("foo"), equals(1)); - expect(wrapper, equals({"bar": 2, "baz": 3, "bang": 4})); - - expect(wrapper.remove("foo"), isNull); - expect(wrapper.remove(3), isNull); - }); - - test("values", () { - expect(wrapper.values, unorderedEquals([1, 2, 3, 4])); - expect(emptyWrapper.values, isEmpty); - }); - - test("toString()", () { - expect( - wrapper.toString(), - allOf([ - startsWith("{"), - contains("foo: 1"), - contains("bar: 2"), - contains("baz: 3"), - contains("bang: 4"), - endsWith("}") - ])); - }); - }); - - group("with invalid key types", () { - Map inner; - var wrapper; - setUp(() { - inner = {1: 1, 2: 2, 3: 3, 4: 4}; - wrapper = DelegatingMap.typed(inner); - }); - - group("throws a CastError for", () { - test("forEach()", () { - expect(() => wrapper.forEach(expectAsync2((_, __) {}, count: 0)), - throwsCastError); - }); - - test("keys", () { - var lazy = wrapper.keys; - expect(() => lazy.first, throwsCastError); - }); - }); - - group("doesn't throw a CastError for", () { - test("[]", () { - expect(wrapper["foo"], isNull); - expect(wrapper[1], equals(1)); - expect(wrapper[7], isNull); - }); - - test("[]=", () { - wrapper["foo"] = 5; - expect(inner, equals({"foo": 5, 1: 1, 2: 2, 3: 3, 4: 4})); - }); - - test("addAll()", () { - wrapper.addAll({"foo": 1, "bar": 2}); - expect(inner, equals({"foo": 1, "bar": 2, 1: 1, 2: 2, 3: 3, 4: 4})); - }); - - test("clear()", () { - wrapper.clear(); - expect(wrapper, isEmpty); - }); - - test("containsKey()", () { - expect(wrapper.containsKey(1), isTrue); - expect(wrapper.containsKey(7), isFalse); - expect(wrapper.containsKey("foo"), isFalse); - }); - - test("containsValue()", () { - expect(wrapper.containsValue(1), isTrue); - expect(wrapper.containsValue(7), isFalse); - expect(wrapper.containsValue("foo"), isFalse); - }); - - test("isEmpty", () { - expect(wrapper.isEmpty, isFalse); - }); - - test("isNotEmpty", () { - expect(wrapper.isNotEmpty, isTrue); - }); - - test("length", () { - expect(wrapper.length, equals(4)); - }); - - test("putIfAbsent()", () { - expect(wrapper.putIfAbsent("foo", () => 1), equals(1)); - expect(inner, equals({"foo": 1, 1: 1, 2: 2, 3: 3, 4: 4})); - }); - - test("remove()", () { - expect(wrapper.remove(1), equals(1)); - expect(inner, equals({2: 2, 3: 3, 4: 4})); - - expect(wrapper.remove("foo"), isNull); - expect(wrapper.remove(7), isNull); - }); - - test("values", () { - expect(wrapper.values, unorderedEquals([1, 2, 3, 4])); - }); - - test("toString()", () { - expect( - wrapper.toString(), - allOf([ - startsWith("{"), - contains("1: 1"), - contains("2: 2"), - contains("3: 3"), - contains("4: 4"), - endsWith("}") - ])); - }); - }); - }, skip: isDart2 ? false : 'Requires a Dart2 runtime'); - - group("with invalid value types", () { - Map inner; - var wrapper; - setUp(() { - inner = {"foo": "bar", "baz": "bang"}; - wrapper = DelegatingMap.typed(inner); - }); - - group("throws a CastError for", () { - test("forEach()", () { - expect(() => wrapper.forEach(expectAsync2((_, __) {}, count: 0)), - throwsCastError); - }); - - test("[]", () { - expect(() => wrapper["foo"], throwsCastError); - expect(wrapper["qux"], isNull); - }); - - test("putIfAbsent()", () { - expect(() => wrapper.putIfAbsent("foo", () => 1), throwsCastError); - }); - - test("remove()", () { - expect(() => wrapper.remove("foo"), throwsCastError); - }); - - test("values", () { - var lazy = wrapper.values; - expect(() => lazy.first, throwsCastError); - }); - }); - - group("doesn't throw a CastError for", () { - test("[]=", () { - wrapper["foo"] = 5; - expect(inner, equals({"foo": 5, "baz": "bang"})); - }); - - test("addAll()", () { - wrapper.addAll({"foo": 1, "qux": 2}); - expect(inner, equals({"foo": 1, "baz": "bang", "qux": 2})); - }); - - test("clear()", () { - wrapper.clear(); - expect(wrapper, isEmpty); - }); - - test("containsKey()", () { - expect(wrapper.containsKey("foo"), isTrue); - expect(wrapper.containsKey(1), isFalse); - expect(wrapper.containsKey("qux"), isFalse); - }); - - test("containsValue()", () { - expect(wrapper.containsValue("bar"), isTrue); - expect(wrapper.containsValue(1), isFalse); - expect(wrapper.containsValue("foo"), isFalse); - }); - - test("isEmpty", () { - expect(wrapper.isEmpty, isFalse); - }); - - test("isNotEmpty", () { - expect(wrapper.isNotEmpty, isTrue); - }); - - test("keys", () { - expect(wrapper.keys, unorderedEquals(["foo", "baz"])); - }); - - test("length", () { - expect(wrapper.length, equals(2)); - }); - - test("putIfAbsent()", () { - expect(wrapper.putIfAbsent("qux", () => 1), equals(1)); - expect(inner, equals({"foo": "bar", "baz": "bang", "qux": 1})); - }); - - test("remove()", () { - expect(wrapper.remove("qux"), isNull); - expect(wrapper.remove(7), isNull); - }); - - test("toString()", () { - expect( - wrapper.toString(), - allOf([ - startsWith("{"), - contains("foo: bar"), - contains("baz: bang"), - endsWith("}") - ])); - }); - }); - }, skip: isDart2 ? false : 'Requires a Dart2 runtime'); -} diff --git a/pkgs/collection/test/typed_wrapper/queue_test.dart b/pkgs/collection/test/typed_wrapper/queue_test.dart deleted file mode 100644 index 0a716fed..00000000 --- a/pkgs/collection/test/typed_wrapper/queue_test.dart +++ /dev/null @@ -1,141 +0,0 @@ -// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file -// for details. All rights reserved. Use of this source code is governed by a -// BSD-style license that can be found in the LICENSE file. - -import "dart:collection"; - -import "package:collection/collection.dart"; -import "package:test/test.dart"; - -import '../utils.dart'; - -void main() { - group("with valid types, forwards", () { - var wrapper; - var emptyWrapper; - setUp(() { - wrapper = - DelegatingQueue.typed(new Queue.from([1, 2, 3, 4, 5])); - emptyWrapper = DelegatingQueue.typed(new Queue()); - }); - - test("add()", () { - wrapper.add(6); - wrapper.add(7); - expect(wrapper, equals([1, 2, 3, 4, 5, 6, 7])); - }); - - test("addAll()", () { - wrapper.addAll([6, 7, 8]); - expect(wrapper, equals([1, 2, 3, 4, 5, 6, 7, 8])); - }); - - test("addFirst()", () { - wrapper.addFirst(6); - wrapper.addFirst(7); - expect(wrapper, equals([7, 6, 1, 2, 3, 4, 5])); - }); - - test("addLast()", () { - wrapper.addLast(6); - wrapper.addLast(7); - expect(wrapper, equals([1, 2, 3, 4, 5, 6, 7])); - }); - - test("clear()", () { - wrapper.clear(); - expect(wrapper, isEmpty); - }); - - test("remove()", () { - expect(wrapper.remove(3), isTrue); - expect(wrapper, equals([1, 2, 4, 5])); - - expect(wrapper.remove(3), isFalse); - expect(wrapper.remove("foo"), isFalse); - }); - - test("removeWhere()", () { - wrapper.removeWhere((i) => i.isOdd); - expect(wrapper, equals([2, 4])); - }); - - test("retainWhere()", () { - wrapper.retainWhere((i) => i.isOdd); - expect(wrapper, equals([1, 3, 5])); - }); - - test("removeLast()", () { - expect(wrapper.removeLast(), equals(5)); - expect(wrapper, equals([1, 2, 3, 4])); - - expect(() => emptyWrapper.removeLast(), throwsStateError); - }); - - test("removeFirst()", () { - expect(wrapper.removeFirst(), equals(1)); - expect(wrapper, equals([2, 3, 4, 5])); - - expect(() => emptyWrapper.removeFirst(), throwsStateError); - }); - }); - - group("with invalid types", () { - Queue inner; - var wrapper; - setUp(() { - inner = new Queue.from(["foo", "bar", "baz"]); - wrapper = DelegatingQueue.typed(inner); - }); - - group("throws a CastError for", () { - test("removeLast()", () { - expect(() => wrapper.removeLast(), throwsCastError); - }); - - test("removeFirst()", () { - expect(() => wrapper.removeFirst(), throwsCastError); - }); - - test("removeWhere()", () { - expect(() => wrapper.removeWhere(expectAsync1((_) => false, count: 0)), - throwsCastError); - }); - - test("retainWhere()", () { - expect(() => wrapper.retainWhere(expectAsync1((_) => false, count: 0)), - throwsCastError); - }); - }); - - group("doesn't throw a CastError for", () { - test("add()", () { - wrapper.add(6); - wrapper.add(7); - expect(inner, equals(["foo", "bar", "baz", 6, 7])); - }); - - test("addAll()", () { - wrapper.addAll([6, 7, 8]); - expect(inner, equals(["foo", "bar", "baz", 6, 7, 8])); - }); - - test("addFirst()", () { - wrapper.addFirst(6); - wrapper.addFirst(7); - expect(inner, equals([7, 6, "foo", "bar", "baz"])); - }); - - test("addLast()", () { - wrapper.addLast(6); - wrapper.addLast(7); - expect(inner, equals(["foo", "bar", "baz", 6, 7])); - }); - - test("clear()", () { - wrapper.clear(); - expect(wrapper, isEmpty); - }); - }); - }, skip: isDart2 ? false : 'Requires a Dart2 runtime'); -} diff --git a/pkgs/collection/test/typed_wrapper/set_test.dart b/pkgs/collection/test/typed_wrapper/set_test.dart deleted file mode 100644 index 37e3cd3c..00000000 --- a/pkgs/collection/test/typed_wrapper/set_test.dart +++ /dev/null @@ -1,173 +0,0 @@ -// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file -// for details. All rights reserved. Use of this source code is governed by a -// BSD-style license that can be found in the LICENSE file. - -import "package:collection/collection.dart"; -import "package:test/test.dart"; - -import '../utils.dart'; - -void main() { - group("with valid types, forwards", () { - var wrapper; - setUp(() { - wrapper = DelegatingSet.typed(new Set.from([1, 2, 3, 4, 5])); - }); - - test("add()", () { - wrapper.add(1); - wrapper.add(6); - expect(wrapper, unorderedEquals([1, 2, 3, 4, 5, 6])); - }); - - test("addAll()", () { - wrapper.addAll([1, 6, 7]); - expect(wrapper, unorderedEquals([1, 2, 3, 4, 5, 6, 7])); - }); - - test("clear()", () { - wrapper.clear(); - expect(wrapper, isEmpty); - }); - - test("containsAll()", () { - expect(wrapper.containsAll([1, 3, 5]), isTrue); - expect(wrapper.containsAll([1, 3, 6]), isFalse); - expect(wrapper.containsAll([1, 3, "foo"]), isFalse); - }); - - test("difference()", () { - expect(wrapper.difference(new Set.from([1, 3, 6])), - unorderedEquals([2, 4, 5])); - }); - - test("intersection()", () { - expect(wrapper.intersection(new Set.from([1, 3, 6, "foo"])), - unorderedEquals([1, 3])); - }); - - test("lookup()", () { - expect(wrapper.lookup(1), equals(1)); - expect(wrapper.lookup(7), isNull); - expect(wrapper.lookup("foo"), isNull); - }); - - test("remove()", () { - expect(wrapper.remove(3), isTrue); - expect(wrapper, unorderedEquals([1, 2, 4, 5])); - - expect(wrapper.remove(3), isFalse); - expect(wrapper.remove("foo"), isFalse); - }); - - test("removeAll()", () { - wrapper.removeAll([1, 3, 6, "foo"]); - expect(wrapper, unorderedEquals([2, 4, 5])); - }); - - test("removeWhere()", () { - wrapper.removeWhere((i) => i.isOdd); - expect(wrapper, unorderedEquals([2, 4])); - }); - - test("retainAll()", () { - wrapper.retainAll([1, 3, 6, "foo"]); - expect(wrapper, unorderedEquals([1, 3])); - }); - - test("retainWhere()", () { - wrapper.retainWhere((i) => i.isOdd); - expect(wrapper, unorderedEquals([1, 3, 5])); - }); - - test("union()", () { - expect(wrapper.union(new Set.from([5, 6, 7])), - unorderedEquals([1, 2, 3, 4, 5, 6, 7])); - }); - }); - - group("with invalid types", () { - Set inner; - var wrapper; - setUp(() { - inner = new Set.from(["foo", "bar", "baz"]); - wrapper = DelegatingSet.typed(inner); - }); - - group("throws a CastError for", () { - test("difference()", () { - var result = wrapper.difference(new Set.from([1, 3, 6])); - expect(() => result.first, throwsCastError); - }); - - test("intersection()", () { - var result = wrapper.intersection(new Set.from([1, 3, 6, "foo"])); - expect(() => result.first, throwsCastError); - }); - - test("lookup()", () { - expect(() => wrapper.lookup("foo"), throwsCastError); - }); - - test("removeWhere()", () { - expect(() => wrapper.removeWhere(expectAsync1((_) => false, count: 0)), - throwsCastError); - }); - - test("retainWhere()", () { - expect(() => wrapper.retainWhere(expectAsync1((_) => false, count: 0)), - throwsCastError); - }); - - test("union()", () { - var result = wrapper.union(new Set.from([5, 6, 7])); - expect(() => result.first, throwsCastError); - }); - }); - - group("doesn't throw a CastError for", () { - test("add()", () { - wrapper.add(6); - expect(inner, unorderedEquals(["foo", "bar", "baz", 6])); - }); - - test("addAll()", () { - wrapper.addAll([6, 7]); - expect(inner, unorderedEquals(["foo", "bar", "baz", 6, 7])); - }); - - test("clear()", () { - wrapper.clear(); - expect(wrapper, isEmpty); - }); - - test("containsAll()", () { - expect(wrapper.containsAll(["foo", "bar"]), isTrue); - expect(wrapper.containsAll(["foo", "bar", 1]), isFalse); - }); - - test("lookup()", () { - expect(wrapper.lookup(1), isNull); - expect(wrapper.lookup("zap"), isNull); - }); - - test("remove()", () { - expect(wrapper.remove("foo"), isTrue); - expect(inner, unorderedEquals(["bar", "baz"])); - - expect(wrapper.remove(3), isFalse); - expect(wrapper.remove("foo"), isFalse); - }); - - test("removeAll()", () { - wrapper.removeAll([1, "foo", "baz"]); - expect(inner, unorderedEquals(["bar"])); - }); - - test("retainAll()", () { - wrapper.retainAll([1, "foo", "baz"]); - expect(inner, unorderedEquals(["foo", "baz"])); - }); - }); - }, skip: isDart2 ? false : 'Requires a Dart2 runtime'); -} From 0ed57968cf445ffd1f889f2543c302f89d23bedb Mon Sep 17 00:00:00 2001 From: Matan Lurey Date: Tue, 20 Mar 2018 08:49:52 -0700 Subject: [PATCH 095/235] Fix cast and retype implementations. (dart-lang/collection#88) * Fix cast and retype implementations. * Fix and add a few tests. * Address feedbakc. --- pkgs/collection/CHANGELOG.md | 7 ++++ pkgs/collection/lib/src/queue_list.dart | 41 ++++++++++++++++++++--- pkgs/collection/lib/src/wrappers.dart | 18 +++++++--- pkgs/collection/pubspec.yaml | 2 +- pkgs/collection/test/queue_list_test.dart | 36 ++++++++++++++++++++ 5 files changed, 95 insertions(+), 9 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index cab55213..e5a8b71f 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,10 @@ +## 1.15.0 + +* Fixed bugs where `QueueList`, `MapKeySet`, and `MapValueSet` did not adhere to + the contract laid out by `List.cast`, `Set.cast` and `Map.cast` respectively. + The returned instances of these methods now correctly forward to the existing + instance instead of always creating a new copy. + ## 1.14.8 * Deprecated `Delegating{Name}.typed` static methods in favor of the new Dart 2 diff --git a/pkgs/collection/lib/src/queue_list.dart b/pkgs/collection/lib/src/queue_list.dart index cab687a4..dcfee7ca 100644 --- a/pkgs/collection/lib/src/queue_list.dart +++ b/pkgs/collection/lib/src/queue_list.dart @@ -10,6 +10,21 @@ import 'dart:collection'; // that are redundant with ListMixin. Remove or simplify it when issue 21330 is // fixed. class QueueList extends Object with ListMixin implements Queue { + /// Adapts [source] to be a `QueueList`. + /// + /// Any time the class would produce an element that is not a [T], the element + /// access will throw. + /// + /// Any time a [T] value is attempted stored into the adapted class, the store + /// will throw unless the value is also an instance of [S]. + /// + /// If all accessed elements of [source] are actually instances of [T] and if + /// all elements stored in the returned are actually instance of [S], + /// then the returned instance can be used as a `QueueList`. + static QueueList _castFrom(QueueList source) { + return new _CastQueueList(source); + } + static const int _INITIAL_CAPACITY = 8; List _table; int _head; @@ -31,6 +46,9 @@ class QueueList extends Object with ListMixin implements Queue { _table = new List(initialCapacity); } + // An internal constructor for use by _CastQueueList. + QueueList._(); + /// Create a queue initially containing the elements of [source]. factory QueueList.from(Iterable source) { if (source is List) { @@ -81,13 +99,14 @@ class QueueList extends Object with ListMixin implements Queue { } QueueList cast() { - if (this is QueueList) { - return this as QueueList; + QueueList self = this; + if (self is QueueList) { + return self; } - return new QueueList.from(_table.cast()); + return retype(); } - QueueList retype() => new QueueList.from(_table.retype()); + QueueList retype() => QueueList._castFrom(this); String toString() => IterableBase.iterableToFullString(this, "{", "}"); @@ -230,3 +249,17 @@ class QueueList extends Object with ListMixin implements Queue { _head = 0; } } + +class _CastQueueList extends QueueList { + final QueueList _delegate; + + _CastQueueList(this._delegate) : super._() { + _table = _delegate._table.cast(); + } + + int get _head => _delegate._head; + set _head(int value) => _delegate._head = value; + + int get _tail => _delegate._tail; + set _tail(int value) => _delegate._tail = value; +} diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index cfe97c72..cead5012 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -475,7 +475,12 @@ class MapKeySet extends _DelegatingIterableBase Iterable get _base => _baseMap.keys; - Set cast() => _baseMap.keys.toSet().cast(); + Set cast() { + if (this is MapKeySet) { + return this as MapKeySet; + } + return Set.castFrom(this); + } bool contains(Object element) => _baseMap.containsKey(element); @@ -513,7 +518,7 @@ class MapKeySet extends _DelegatingIterableBase E lookup(Object element) => throw new UnsupportedError("MapKeySet doesn't support lookup()."); - Set retype() => _baseMap.keys.toSet().retype(); + Set retype() => Set.castFrom(this); /// Returns a new set which contains all the elements of [this] and [other]. /// @@ -561,7 +566,12 @@ class MapValueSet extends _DelegatingIterableBase implements Set { Iterable get _base => _baseMap.values; - Set cast() => _baseMap.values.toSet().cast(); + Set cast() { + if (this is Set) { + return this as Set; + } + return Set.castFrom(this); + } bool contains(Object element) { if (element != null && element is! V) return false; @@ -659,7 +669,7 @@ class MapValueSet extends _DelegatingIterableBase implements Set { void retainWhere(bool test(V element)) => removeWhere((element) => !test(element)); - Set retype() => toSet().retype(); + Set retype() => Set.castFrom(this); /// Returns a new set which contains all the elements of [this] and [other]. /// diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 300fb9c1..5f9ca885 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.14.7 +version: 1.15.0 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection diff --git a/pkgs/collection/test/queue_list_test.dart b/pkgs/collection/test/queue_list_test.dart index d2e70140..ed26a65c 100644 --- a/pkgs/collection/test/queue_list_test.dart +++ b/pkgs/collection/test/queue_list_test.dart @@ -258,6 +258,42 @@ void main() { expect(queue.cast(), same(queue)); }, skip: isDart2 ? false : 'Requires a Dart2 runtime'); + test("cast does not throw on mutation when the type is valid", () { + var patternQueue = new QueueList()..addAll(['a', 'b']); + var stringQueue = patternQueue.cast(); + stringQueue.addAll(['c', 'd']); + expect( + stringQueue, + const isInstanceOf>(), + reason: 'Expected QueueList, got ${stringQueue.runtimeType}', + skip: isDart2 ? false : 'Cast does nothing in Dart1', + ); + + expect( + stringQueue, + ['a', 'b', 'c', 'd'], + skip: isDart2 ? false : 'Cast does nothing in Dart1', + ); + + expect(patternQueue, stringQueue, reason: 'Should forward to original'); + }); + + test("cast throws on mutation when the type is not valid", () { + QueueList stringQueue = new QueueList(); + var numQueue = stringQueue.cast(); + expect( + numQueue, + const isInstanceOf>(), + reason: 'Expected QueueList, got ${numQueue.runtimeType}', + skip: isDart2 ? false : 'Cast does nothing in Dart1', + ); + expect( + () => numQueue.add(1), + throwsCastError, + skip: isDart2 ? false : 'In Dart1 a TypeError is not thrown', + ); + }); + test("retype returns a new QueueList", () { var queue = new QueueList(); expect(queue.retype(), isNot(same(queue))); From d3d2bb1c4fdaf9de06ccffae46b800cc1172ad4e Mon Sep 17 00:00:00 2001 From: Matan Lurey Date: Tue, 20 Mar 2018 10:07:19 -0700 Subject: [PATCH 096/235] Fix versioning (revision instead of minor). (dart-lang/collection#89) --- pkgs/collection/CHANGELOG.md | 2 +- pkgs/collection/pubspec.yaml | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index e5a8b71f..bc4b5e58 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,4 +1,4 @@ -## 1.15.0 +## 1.14.9 * Fixed bugs where `QueueList`, `MapKeySet`, and `MapValueSet` did not adhere to the contract laid out by `List.cast`, `Set.cast` and `Map.cast` respectively. diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 5f9ca885..21d00497 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.15.0 +version: 1.14.9 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection @@ -9,7 +9,7 @@ environment: sdk: '>=2.0.0-dev.22.0 <2.0.0' dev_dependencies: - build_runner: ^0.7.11 + build_runner: ^0.8.0 build_test: ^0.10.0 build_web_compilers: ^0.3.1 test: ^0.12.0 From 988ae9e8598fae12d808a6fffd8c2542c8a1abdf Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Mon, 26 Mar 2018 10:42:52 -0700 Subject: [PATCH 097/235] Fix the parameter names in overridden methods to match the source (dart-lang/collection#90) --- pkgs/collection/CHANGELOG.md | 4 ++++ pkgs/collection/analysis_options.yaml | 1 + .../lib/src/combined_wrappers/combined_list.dart | 4 ++-- pkgs/collection/lib/src/queue_list.dart | 8 ++++---- pkgs/collection/pubspec.yaml | 2 +- 5 files changed, 12 insertions(+), 7 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index bc4b5e58..10d5842a 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.14.10 + +* Fix the parameter names in overridden methods to match the source. + ## 1.14.9 * Fixed bugs where `QueueList`, `MapKeySet`, and `MapValueSet` did not adhere to diff --git a/pkgs/collection/analysis_options.yaml b/pkgs/collection/analysis_options.yaml index 9d95259e..705910c7 100644 --- a/pkgs/collection/analysis_options.yaml +++ b/pkgs/collection/analysis_options.yaml @@ -20,6 +20,7 @@ linter: # Style - avoid_init_to_null + - avoid_renaming_method_parameters - avoid_return_types_on_setters - await_only_futures - camel_case_types diff --git a/pkgs/collection/lib/src/combined_wrappers/combined_list.dart b/pkgs/collection/lib/src/combined_wrappers/combined_list.dart index d2e03499..21a68f6b 100644 --- a/pkgs/collection/lib/src/combined_wrappers/combined_list.dart +++ b/pkgs/collection/lib/src/combined_wrappers/combined_list.dart @@ -56,11 +56,11 @@ class CombinedListView extends ListBase return null; } - void removeWhere(bool filter(T element)) { + void removeWhere(bool test(T element)) { _throw(); } - void retainWhere(bool filter(T element)) { + void retainWhere(bool test(T element)) { _throw(); } } diff --git a/pkgs/collection/lib/src/queue_list.dart b/pkgs/collection/lib/src/queue_list.dart index dcfee7ca..8b68cc85 100644 --- a/pkgs/collection/lib/src/queue_list.dart +++ b/pkgs/collection/lib/src/queue_list.dart @@ -70,9 +70,9 @@ class QueueList extends Object with ListMixin implements Queue { _add(element); } - void addAll(Iterable elements) { - if (elements is List) { - var list = elements; + void addAll(Iterable iterable) { + if (iterable is List) { + var list = iterable; int addCount = list.length; int length = this.length; if (length + addCount >= _table.length) { @@ -94,7 +94,7 @@ class QueueList extends Object with ListMixin implements Queue { } } } else { - for (E element in elements) _add(element); + for (E element in iterable) _add(element); } } diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 21d00497..7e00af00 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.14.9 +version: 1.14.10-dev author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection From cfd3888119a497bf506fa46f164a7138f2894f79 Mon Sep 17 00:00:00 2001 From: Natalie Weizenbaum Date: Wed, 2 May 2018 13:00:09 -0700 Subject: [PATCH 098/235] Fix some Dart 2 runtime test errors (dart-lang/collection#92) Partially addresses dart-lang/collection#57 --- pkgs/collection/pubspec.yaml | 2 +- .../test/union_set_controller_test.dart | 4 +- pkgs/collection/test/union_set_test.dart | 38 +++++++++---------- 3 files changed, 22 insertions(+), 22 deletions(-) diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 7e00af00..d3bec8b2 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -6,7 +6,7 @@ homepage: https://www.github.com/dart-lang/collection environment: # Required for Dart 2.0 collection changes. - sdk: '>=2.0.0-dev.22.0 <2.0.0' + sdk: '>=2.0.0-dev.36.0 <2.0.0' dev_dependencies: build_runner: ^0.8.0 diff --git a/pkgs/collection/test/union_set_controller_test.dart b/pkgs/collection/test/union_set_controller_test.dart index 366b7817..8c561d35 100644 --- a/pkgs/collection/test/union_set_controller_test.dart +++ b/pkgs/collection/test/union_set_controller_test.dart @@ -7,11 +7,11 @@ import "package:test/test.dart"; import "package:collection/collection.dart"; void main() { - var controller; + UnionSetController controller; Set innerSet; setUp(() { innerSet = new Set.from([1, 2, 3]); - controller = new UnionSetController()..add(innerSet); + controller = new UnionSetController()..add(innerSet); }); test("exposes a union set", () { diff --git a/pkgs/collection/test/union_set_test.dart b/pkgs/collection/test/union_set_test.dart index f2a792ac..d0437ff7 100644 --- a/pkgs/collection/test/union_set_test.dart +++ b/pkgs/collection/test/union_set_test.dart @@ -42,10 +42,10 @@ void main() { group("with multiple disjoint sets", () { var set; setUp(() { - set = new UnionSet.from([ - new Set.from([1, 2]), - new Set.from([3, 4]), - new Set.from([5]), + set = new UnionSet.from([ + new Set.of([1, 2]), + new Set.of([3, 4]), + new Set.of([5]), new Set() ], disjoint: true); }); @@ -81,10 +81,10 @@ void main() { group("with multiple overlapping sets", () { var set; setUp(() { - set = new UnionSet.from([ - new Set.from([1, 2, 3]), - new Set.from([3, 4]), - new Set.from([5, 1]), + set = new UnionSet.from([ + new Set.of([1, 2, 3]), + new Set.of([3, 4]), + new Set.of([5, 1]), new Set() ]); }); @@ -114,8 +114,8 @@ void main() { expect(duration1, isNot(same(duration2))); var set = new UnionSet.from([ - new Set.from([duration1]), - new Set.from([duration2]) + new Set.of([duration1]), + new Set.of([duration2]) ]); expect(set.lookup(new Duration(seconds: 0)), same(duration1)); @@ -134,10 +134,10 @@ void main() { group("after an inner set was modified", () { var set; setUp(() { - var innerSet = new Set.from([3, 7]); - set = new UnionSet.from([ - new Set.from([1, 2]), - new Set.from([5]), + var innerSet = new Set.of([3, 7]); + set = new UnionSet.from([ + new Set.of([1, 2]), + new Set.of([5]), innerSet ]); @@ -178,16 +178,16 @@ void main() { group("after the outer set was modified", () { var set; setUp(() { - var innerSet = new Set.from([6]); - var outerSet = new Set>.from([ - new Set.from([1, 2]), - new Set.from([5]), + var innerSet = new Set.of([6]); + var outerSet = new Set.of([ + new Set.of([1, 2]), + new Set.of([5]), innerSet ]); set = new UnionSet(outerSet); outerSet.remove(innerSet); - outerSet.add(new Set.from([3, 4])); + outerSet.add(new Set.of([3, 4])); }); test("length returns the total length", () { From 3683039a613af1d09e6608f14fb149e9cb619b5b Mon Sep 17 00:00:00 2001 From: "Lasse R.H. Nielsen" Date: Mon, 7 May 2018 11:38:26 +0200 Subject: [PATCH 099/235] Fix 2 tests (dart-lang/collection#93) Fix two tests to be Dart 2 type-safe. Clean up test/wrapper_test.dart signficantly. Add enough type annotations to test/unmodifiable_collection_test.dart to get the necessary inference. Update dependency on SDK to allow using the new `Invocation` constructor. --- pkgs/collection/CHANGELOG.md | 7 +- pkgs/collection/pubspec.yaml | 4 +- .../test/unmodifiable_collection_test.dart | 45 +-- pkgs/collection/test/wrapper_test.dart | 346 +++++++++--------- 4 files changed, 194 insertions(+), 208 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 10d5842a..3af6a93d 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,6 +1,7 @@ ## 1.14.10 -* Fix the parameter names in overridden methods to match the source. +* Fix the parameter names in overridden methods to match the source. +* Make tests Dart 2 type-safe. ## 1.14.9 @@ -13,7 +14,7 @@ * Deprecated `Delegating{Name}.typed` static methods in favor of the new Dart 2 `cast` methods. For example, `DelegatingList.typed(list)` can now be - written as `list.cast()`. + written as `list.cast()`. ## 1.14.7 @@ -37,7 +38,7 @@ ## 1.14.4 * Add implementation stubs of upcoming Dart 2.0 core library methods, namely - new methods for classes that implement `Iterable`, `List`, `Map`, `Queue`, + new methods for classes that implement `Iterable`, `List`, `Map`, `Queue`, and `Set`. ## 1.14.3 diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index d3bec8b2..06f183e9 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -6,10 +6,10 @@ homepage: https://www.github.com/dart-lang/collection environment: # Required for Dart 2.0 collection changes. - sdk: '>=2.0.0-dev.36.0 <2.0.0' + sdk: '>=2.0.0-dev.49.0 <2.0.0' dev_dependencies: build_runner: ^0.8.0 build_test: ^0.10.0 build_web_compilers: ^0.3.1 - test: ^0.12.0 + test: ^0.12.35 diff --git a/pkgs/collection/test/unmodifiable_collection_test.dart b/pkgs/collection/test/unmodifiable_collection_test.dart index a6705f62..c7b539f1 100644 --- a/pkgs/collection/test/unmodifiable_collection_test.dart +++ b/pkgs/collection/test/unmodifiable_collection_test.dart @@ -37,13 +37,13 @@ main() { testUnmodifiableSet(aSet, new UnmodifiableSetView(aSet), "empty"); aSet = new Set(); testUnmodifiableSet(aSet, const UnmodifiableSetView.empty(), "const empty"); - aSet = new Set.from([42]); + aSet = new Set.of([42]); testUnmodifiableSet(aSet, new UnmodifiableSetView(aSet), "single-42"); - aSet = new Set.from([7]); + aSet = new Set.of([7]); testUnmodifiableSet(aSet, new UnmodifiableSetView(aSet), "single!42"); - aSet = new Set.from([1, 42, 10]); + aSet = new Set.of([1, 42, 10]); testUnmodifiableSet(aSet, new UnmodifiableSetView(aSet), "three-42"); - aSet = new Set.from([1, 7, 10]); + aSet = new Set.of([1, 7, 10]); testUnmodifiableSet(aSet, new UnmodifiableSetView(aSet), "three!42"); } @@ -311,8 +311,8 @@ void testReadList(List original, List wrapped, String name) { }); } -void testNoWriteList(List original, List wrapped, String name) { - List copy = new List.from(original); +void testNoWriteList(List original, List wrapped, String name) { + var copy = new List.of(original); testThrows(name, thunk) { test(name, () { @@ -345,7 +345,7 @@ void testNoWriteList(List original, List wrapped, String name) { } void testWriteList(List original, List wrapped, String name) { - var copy = new List.from(original); + var copy = new List.of(original); test("$name - []=", () { if (original.isNotEmpty) { @@ -361,7 +361,7 @@ void testWriteList(List original, List wrapped, String name) { }); test("$name - sort", () { - List sortCopy = new List.from(original); + List sortCopy = new List.of(original); sortCopy.sort(); wrapped.sort(); expect(original, orderedEquals(sortCopy)); @@ -391,8 +391,9 @@ void testWriteList(List original, List wrapped, String name) { }); } -void testNoChangeLengthList(List original, List wrapped, String name) { - List copy = new List.from(original); +void testNoChangeLengthList( + List original, List wrapped, String name) { + var copy = new List.of(original); void testThrows(String name, thunk) { test(name, () { @@ -455,8 +456,8 @@ void testNoChangeLengthList(List original, List wrapped, String name) { }); } -void testReadSet(Set original, Set wrapped, String name) { - Set copy = new Set.from(original); +void testReadSet(Set original, Set wrapped, String name) { + var copy = new Set.of(original); test("$name - containsAll", () { expect(wrapped.containsAll(copy), isTrue); @@ -468,27 +469,27 @@ void testReadSet(Set original, Set wrapped, String name) { test("$name - intersection", () { expect(wrapped.intersection(new Set()), isEmpty); expect(wrapped.intersection(copy), unorderedEquals(original)); - expect(wrapped.intersection(new Set.from([42])), - new Set.from(original.contains(42) ? [42] : [])); + expect(wrapped.intersection(new Set.of([42])), + new Set.of(original.contains(42) ? [42] : [])); }); test("$name - union", () { expect(wrapped.union(new Set()), unorderedEquals(original)); expect(wrapped.union(copy), unorderedEquals(original)); - expect(wrapped.union(new Set.from([42])), - equals(original.union(new Set.from([42])))); + expect(wrapped.union(new Set.of([42])), + equals(original.union(new Set.of([42])))); }); test("$name - difference", () { expect(wrapped.difference(new Set()), unorderedEquals(original)); expect(wrapped.difference(copy), isEmpty); - expect(wrapped.difference(new Set.from([42])), - equals(original.difference(new Set.from([42])))); + expect(wrapped.difference(new Set.of([42])), + equals(original.difference(new Set.of([42])))); }); } -void testNoChangeSet(Set original, Set wrapped, String name) { - List originalElements = original.toList(); +void testNoChangeSet(Set original, Set wrapped, String name) { + var originalElements = original.toList(); testThrows(name, thunk) { test(name, () { @@ -588,8 +589,8 @@ void testReadMap(Map original, Map wrapped, String name) { }); } -testNoChangeMap(Map original, Map wrapped, String name) { - Map copy = new Map.from(original); +testNoChangeMap(Map original, Map wrapped, String name) { + var copy = new Map.of(original); testThrows(name, thunk) { test(name, () { diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index 0df053ca..bb8f90f6 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -25,253 +25,237 @@ void testInvocations(Invocation i1, Invocation i2) { /// Utility class to record a member access and a member access on a wrapped /// object, and compare them for equality. +/// +/// Use as `(expector..someAccess()).equals.someAccess();`. +/// Alle the intercepted member accesses returns `null`. abstract class Expector { - getWrappedObject(action(Invocation i)); - // Hack to test assignment ([]=) because it doesn't return the result - // of the member call. Instead use (expect..[4]=5).equal[4]=5 where - // you would normally use expect[4].equals[4] for non-assignments. + wrappedChecker(Invocation i); + // After calling any member on the Expector, equals is an object that expects + // the *same* invocation on the wrapped object. var equals; - noSuchMethod(Invocation m) => new _Equals(equals = getWrappedObject((m2) { - testInvocations(m, m2); - })); - - // dartanalyzer complains if this method is named `toString()`, since, if it - // truly overrides Object's `toString()`, it should return a String. - asString() => new _Equals(equals = getWrappedObject((m2) { - testInvocations(TO_STRING_INVOCATION, m2); - })); -} + noSuchMethod(Invocation i) { + equals = wrappedChecker(i); + return null; + } -// An object with a field called "equals", only introduced into the -// flow to allow writing expect.xxx.equals.xxx. -class _Equals { - final equals; - _Equals(this.equals); + toString() { + // Cannot return an _Equals object since toString must return a String. + // Just set equals and return a string. + equals = wrappedChecker(toStringInvocation); + return ""; + } } -class SyntheticInvocation implements Invocation { - static const int METHOD = 0x00; - static const int GETTER = 0x01; - static const int SETTER = 0x02; - final Symbol memberName; - final List positionalArguments; - final Map namedArguments; - final int _type; - const SyntheticInvocation(this.memberName, this.positionalArguments, - this.namedArguments, this._type); - - List get typeArguments => const []; - - bool get isMethod => _type == METHOD; +// Parameterization of noSuchMethod. Calls [_action] on every +// member invocation. +class InvocationChecker { + Invocation _expected; + InvocationChecker(this._expected); + noSuchMethod(Invocation actual) { + testInvocations(_expected, actual); + return null; + } - bool get isGetter => _type == GETTER; + toString() { + testInvocations(_expected, toStringInvocation); + return ""; + } + // Could also handle runtimeType, hashCode and == the same way as + // toString, but we are not testing them since collections generally + // don't override those and so the wrappers don't forward those. +} - bool get isSetter => _type == SETTER; +final toStringInvocation = new Invocation.method(#toString, const []); - bool get isAccessor => isGetter || isSetter; +// InvocationCheckers with types Queue, Set, List or Iterable to allow them as +// argument to DelegatingIterable/Set/List/Queue. +class IterableInvocationChecker extends InvocationChecker + implements Iterable { + IterableInvocationChecker(Invocation expected) : super(expected); } -// Parameterization of noSuchMethod. -class NSM { - Function _action; - NSM(this._action); - noSuchMethod(Invocation i) => _action(i); +class ListInvocationChecker extends InvocationChecker implements List { + ListInvocationChecker(Invocation expected) : super(expected); } -const TO_STRING_INVOCATION = const SyntheticInvocation( - #toString, const [], const {}, SyntheticInvocation.METHOD); +class SetInvocationChecker extends InvocationChecker implements Set { + SetInvocationChecker(Invocation expected) : super(expected); +} -// LikeNSM, but has types Iterable, Set and List to allow it as -// argument to DelegatingIterable/Set/List. -class IterableNSM extends NSM implements Iterable, Set, List, Queue { - IterableNSM(action(Invocation i)) : super(action); - toString() => super.noSuchMethod(TO_STRING_INVOCATION) as String; +class QueueInvocationChecker extends InvocationChecker implements Queue { + QueueInvocationChecker(Invocation expected) : super(expected); +} - Null cast(); - Null retype(); +class MapInvocationChecker extends InvocationChecker + implements Map { + MapInvocationChecker(Invocation expected) : super(expected); } // Expector that wraps in DelegatingIterable. -class IterableExpector extends Expector { - getWrappedObject(void action(Invocation i)) { - return new DelegatingIterable(new IterableNSM(action)); - } +class IterableExpector extends Expector implements Iterable { + wrappedChecker(Invocation i) => + new DelegatingIterable(new IterableInvocationChecker(i)); } // Expector that wraps in DelegatingList. -class ListExpector extends Expector { - getWrappedObject(void action(Invocation i)) { - return new DelegatingList(new IterableNSM(action)); - } +class ListExpector extends Expector implements List { + wrappedChecker(Invocation i) => + new DelegatingList(new ListInvocationChecker(i)); } // Expector that wraps in DelegatingSet. -class SetExpector extends Expector { - getWrappedObject(void action(Invocation i)) { - return new DelegatingSet(new IterableNSM(action)); - } +class SetExpector extends Expector implements Set { + wrappedChecker(Invocation i) => + new DelegatingSet(new SetInvocationChecker(i)); } // Expector that wraps in DelegatingSet. -class QueueExpector extends Expector { - getWrappedObject(void action(Invocation i)) { - return new DelegatingQueue(new IterableNSM(action)); - } -} - -// Like NSM but implements Map to allow as argument for DelegatingMap. -class MapNSM extends NSM implements Map { - MapNSM(action(Invocation i)) : super(action); - toString() => super.noSuchMethod(TO_STRING_INVOCATION) as String; +class QueueExpector extends Expector implements Queue { + wrappedChecker(Invocation i) => + new DelegatingQueue(new QueueInvocationChecker(i)); } // Expector that wraps in DelegatingMap. -class MapExpector extends Expector { - getWrappedObject(void action(Invocation i)) { - return new DelegatingMap(new MapNSM(action)); - } +class MapExpector extends Expector implements Map { + wrappedChecker(Invocation i) => + new DelegatingMap(new MapInvocationChecker(i)); } // Utility values to use as arguments in calls. -func0() {} -func1(x) {} -func2(x, y) {} +Null func0() => null; +Null func1(Object x) => null; +Null func2(Object x, Object y) => null; var val = new Object(); void main() { testIterable(var expect) { - expect.any(func1).equals.any(func1); - expect.contains(val).equals.contains(val); - expect.elementAt(0).equals.elementAt(0); - expect.every(func1).equals.every(func1); - expect.expand(func1).equals.expand(func1); - expect.first.equals.first; + (expect..any(func1)).equals.any(func1); + (expect..contains(val)).equals.contains(val); + (expect..elementAt(0)).equals.elementAt(0); + (expect..every(func1)).equals.every(func1); + (expect..expand(func1)).equals.expand(func1); + (expect..first).equals.first; // Default values of the Iterable interface will be added in the // second call to firstWhere, so we must record them in our // expectation (which doesn't have the interface implemented or // its default values). - expect.firstWhere(func1, orElse: null).equals.firstWhere(func1); - expect - .firstWhere(func1, orElse: func0) + (expect..firstWhere(func1, orElse: null)).equals.firstWhere(func1); + (expect..firstWhere(func1, orElse: func0)) .equals .firstWhere(func1, orElse: func0); - expect.fold(null, func2).equals.fold(null, func2); - expect.forEach(func1).equals.forEach(func1); - expect.isEmpty.equals.isEmpty; - expect.isNotEmpty.equals.isNotEmpty; - expect.iterator.equals.iterator; - expect.join('').equals.join(); - expect.join("X").equals.join("X"); - expect.last.equals.last; - expect.lastWhere(func1, orElse: null).equals.lastWhere(func1); - expect - .lastWhere(func1, orElse: func0) + (expect..fold(null, func2)).equals.fold(null, func2); + (expect..forEach(func1)).equals.forEach(func1); + (expect..isEmpty).equals.isEmpty; + (expect..isNotEmpty).equals.isNotEmpty; + (expect..iterator).equals.iterator; + (expect..join('')).equals.join(); + (expect..join("X")).equals.join("X"); + (expect..last).equals.last; + (expect..lastWhere(func1, orElse: null)).equals.lastWhere(func1); + (expect..lastWhere(func1, orElse: func0)) .equals .lastWhere(func1, orElse: func0); - expect.length.equals.length; - expect.map(func1).equals.map(func1); - expect.reduce(func2).equals.reduce(func2); - expect.single.equals.single; - - // TODO: This currently fails because of the named parameter. - // expect.singleWhere(func1).equals.singleWhere(func1); - - expect.skip(5).equals.skip(5); - expect.skipWhile(func1).equals.skipWhile(func1); - expect.take(5).equals.take(5); - expect.takeWhile(func1).equals.takeWhile(func1); - expect.toList(growable: true).equals.toList(); - expect.toList(growable: true).equals.toList(growable: true); - expect.toList(growable: false).equals.toList(growable: false); - expect.toSet().equals.toSet(); - expect.asString().equals.toString(); - expect.where(func1).equals.where(func1); + (expect..length).equals.length; + (expect..map(func1)).equals.map(func1); + (expect..reduce(func2)).equals.reduce(func2); + (expect..single).equals.single; + (expect..singleWhere(func1, orElse: null)).equals.singleWhere(func1); + (expect..skip(5)).equals.skip(5); + (expect..skipWhile(func1)).equals.skipWhile(func1); + (expect..take(5)).equals.take(5); + (expect..takeWhile(func1)).equals.takeWhile(func1); + (expect..toList(growable: true)).equals.toList(); + (expect..toList(growable: true)).equals.toList(growable: true); + (expect..toList(growable: false)).equals.toList(growable: false); + (expect..toSet()).equals.toSet(); + (expect..toString()).equals.toString(); + (expect..where(func1)).equals.where(func1); } void testList(var expect) { testIterable(expect); - expect[4].equals[4]; + (expect..[4]).equals[4]; (expect..[4] = 5).equals[4] = 5; - expect.add(val).equals.add(val); - expect.addAll([val]).equals.addAll([val]); - expect.asMap().equals.asMap(); - expect.clear().equals.clear(); - expect.fillRange(4, 5, null).equals.fillRange(4, 5); - expect.fillRange(4, 5, val).equals.fillRange(4, 5, val); - expect.getRange(4, 5).equals.getRange(4, 5); - expect.indexOf(val, 0).equals.indexOf(val); - expect.indexOf(val, 4).equals.indexOf(val, 4); - expect.insert(4, val).equals.insert(4, val); - expect.insertAll(4, [val]).equals.insertAll(4, [val]); - expect.lastIndexOf(val, null).equals.lastIndexOf(val); - expect.lastIndexOf(val, 4).equals.lastIndexOf(val, 4); + (expect..add(val)).equals.add(val); + (expect..addAll([val])).equals.addAll([val]); + (expect..asMap()).equals.asMap(); + (expect..clear()).equals.clear(); + (expect..fillRange(4, 5, null)).equals.fillRange(4, 5); + (expect..fillRange(4, 5, val)).equals.fillRange(4, 5, val); + (expect..getRange(4, 5)).equals.getRange(4, 5); + (expect..indexOf(val, 0)).equals.indexOf(val); + (expect..indexOf(val, 4)).equals.indexOf(val, 4); + (expect..insert(4, val)).equals.insert(4, val); + (expect..insertAll(4, [val])).equals.insertAll(4, [val]); + (expect..lastIndexOf(val, null)).equals.lastIndexOf(val); + (expect..lastIndexOf(val, 4)).equals.lastIndexOf(val, 4); (expect..length = 4).equals.length = 4; - expect.remove(val).equals.remove(val); - expect.removeAt(4).equals.removeAt(4); - expect.removeLast().equals.removeLast(); - expect.removeRange(4, 5).equals.removeRange(4, 5); - expect.removeWhere(func1).equals.removeWhere(func1); - expect.replaceRange(4, 5, [val]).equals.replaceRange(4, 5, [val]); - expect.retainWhere(func1).equals.retainWhere(func1); - expect.reversed.equals.reversed; - expect.setAll(4, [val]).equals.setAll(4, [val]); - expect.setRange(4, 5, [val], 0).equals.setRange(4, 5, [val]); - expect.setRange(4, 5, [val], 3).equals.setRange(4, 5, [val], 3); - expect.sort(null).equals.sort(); - expect.sort(func2).equals.sort(func2); - expect.sublist(4, null).equals.sublist(4); - expect.sublist(4, 5).equals.sublist(4, 5); + (expect..remove(val)).equals.remove(val); + (expect..removeAt(4)).equals.removeAt(4); + (expect..removeLast()).equals.removeLast(); + (expect..removeRange(4, 5)).equals.removeRange(4, 5); + (expect..removeWhere(func1)).equals.removeWhere(func1); + (expect..replaceRange(4, 5, [val])).equals.replaceRange(4, 5, [val]); + (expect..retainWhere(func1)).equals.retainWhere(func1); + (expect..reversed).equals.reversed; + (expect..setAll(4, [val])).equals.setAll(4, [val]); + (expect..setRange(4, 5, [val], 0)).equals.setRange(4, 5, [val]); + (expect..setRange(4, 5, [val], 3)).equals.setRange(4, 5, [val], 3); + (expect..sort(null)).equals.sort(); + (expect..sort(func2)).equals.sort(func2); + (expect..sublist(4, null)).equals.sublist(4); + (expect..sublist(4, 5)).equals.sublist(4, 5); } void testSet(var expect) { testIterable(expect); Set set = new Set(); - expect.add(val).equals.add(val); - expect.addAll([val]).equals.addAll([val]); - expect.clear().equals.clear(); - expect.containsAll([val]).equals.containsAll([val]); - expect.difference(set).equals.difference(set); - expect.intersection(set).equals.intersection(set); - expect.remove(val).equals.remove(val); - expect.removeAll([val]).equals.removeAll([val]); - expect.removeWhere(func1).equals.removeWhere(func1); - expect.retainAll([val]).equals.retainAll([val]); - expect.retainWhere(func1).equals.retainWhere(func1); - expect.union(set).equals.union(set); + (expect..add(val)).equals.add(val); + (expect..addAll([val])).equals.addAll([val]); + (expect..clear()).equals.clear(); + (expect..containsAll([val])).equals.containsAll([val]); + (expect..difference(set)).equals.difference(set); + (expect..intersection(set)).equals.intersection(set); + (expect..remove(val)).equals.remove(val); + (expect..removeAll([val])).equals.removeAll([val]); + (expect..removeWhere(func1)).equals.removeWhere(func1); + (expect..retainAll([val])).equals.retainAll([val]); + (expect..retainWhere(func1)).equals.retainWhere(func1); + (expect..union(set)).equals.union(set); } void testQueue(var expect) { testIterable(expect); - expect.add(val).equals.add(val); - expect.addAll([val]).equals.addAll([val]); - expect.addFirst(val).equals.addFirst(val); - expect.addLast(val).equals.addLast(val); - expect.clear().equals.clear(); - expect.remove(val).equals.remove(val); - expect.removeFirst().equals.removeFirst(); - expect.removeLast().equals.removeLast(); + (expect..add(val)).equals.add(val); + (expect..addAll([val])).equals.addAll([val]); + (expect..addFirst(val)).equals.addFirst(val); + (expect..addLast(val)).equals.addLast(val); + (expect..clear()).equals.clear(); + (expect..remove(val)).equals.remove(val); + (expect..removeFirst()).equals.removeFirst(); + (expect..removeLast()).equals.removeLast(); } void testMap(var expect) { Map map = new Map(); - expect[val].equals[val]; + (expect..[val]).equals[val]; (expect..[val] = val).equals[val] = val; - expect.addAll(map).equals.addAll(map); - expect.clear().equals.clear(); - expect.containsKey(val).equals.containsKey(val); - expect.containsValue(val).equals.containsValue(val); - expect.forEach(func2).equals.forEach(func2); - expect.isEmpty.equals.isEmpty; - expect.isNotEmpty.equals.isNotEmpty; - expect.keys.equals.keys; - expect.length.equals.length; - expect.putIfAbsent(val, func0).equals.putIfAbsent(val, func0); - expect.remove(val).equals.remove(val); - expect.values.equals.values; - expect.asString().equals.toString(); + (expect..addAll(map)).equals.addAll(map); + (expect..clear()).equals.clear(); + (expect..containsKey(val)).equals.containsKey(val); + (expect..containsValue(val)).equals.containsValue(val); + (expect..forEach(func2)).equals.forEach(func2); + (expect..isEmpty).equals.isEmpty; + (expect..isNotEmpty).equals.isNotEmpty; + (expect..keys).equals.keys; + (expect..length).equals.length; + (expect..putIfAbsent(val, func0)).equals.putIfAbsent(val, func0); + (expect..remove(val)).equals.remove(val); + (expect..values).equals.values; + (expect..toString()).equals.toString(); } // Runs tests of Set behavior. @@ -279,7 +263,7 @@ void main() { // [setUpSet] should return a set with two elements: "foo" and "bar". void testTwoElementSet(Set setUpSet()) { group("with two elements", () { - var set; + Set set; setUp(() => set = setUpSet()); test(".any", () { From aa07c77935c0a0e8af5ce7d556323e028d02ff50 Mon Sep 17 00:00:00 2001 From: "Lasse R.H. Nielsen" Date: Tue, 12 Jun 2018 15:38:49 +0200 Subject: [PATCH 100/235] Remove uses of `retype` (dart-lang/collection#95) * Remove uses of `retype` --- pkgs/collection/CHANGELOG.md | 1 + pkgs/collection/lib/src/canonicalized_map.dart | 3 ++- .../lib/src/empty_unmodifiable_set.dart | 1 + pkgs/collection/lib/src/queue_list.dart | 11 +++-------- pkgs/collection/lib/src/wrappers.dart | 17 ++++++++++++----- pkgs/collection/pubspec.yaml | 4 ++-- .../collection/test/canonicalized_map_test.dart | 4 ++-- pkgs/collection/test/queue_list_test.dart | 9 ++------- 8 files changed, 25 insertions(+), 25 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 3af6a93d..3c9d4dd9 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -2,6 +2,7 @@ * Fix the parameter names in overridden methods to match the source. * Make tests Dart 2 type-safe. +* Stop depending on SDK `retype` and deprecate methods. ## 1.14.9 diff --git a/pkgs/collection/lib/src/canonicalized_map.dart b/pkgs/collection/lib/src/canonicalized_map.dart index b28c6cc6..9e1d5cf0 100644 --- a/pkgs/collection/lib/src/canonicalized_map.dart +++ b/pkgs/collection/lib/src/canonicalized_map.dart @@ -120,7 +120,8 @@ class CanonicalizedMap implements Map { void removeWhere(bool test(K key, V value)) => _base.removeWhere((_, pair) => test(pair.first, pair.last)); - Map retype() => _base.retype(); + @deprecated + Map retype() => cast(); V update(K key, V update(V value), {V ifAbsent()}) => _base .update(_canonicalize(key), (pair) => new Pair(key, update(pair.last)), diff --git a/pkgs/collection/lib/src/empty_unmodifiable_set.dart b/pkgs/collection/lib/src/empty_unmodifiable_set.dart index 436e88df..997619d6 100644 --- a/pkgs/collection/lib/src/empty_unmodifiable_set.dart +++ b/pkgs/collection/lib/src/empty_unmodifiable_set.dart @@ -25,6 +25,7 @@ class EmptyUnmodifiableSet extends IterableBase bool containsAll(Iterable other) => other.isEmpty; Iterable followedBy(Iterable other) => new Set.from(other); E lookup(Object element) => null; + @deprecated EmptyUnmodifiableSet retype() => new EmptyUnmodifiableSet(); E singleWhere(bool test(E element), {E orElse()}) => super.singleWhere(test); Iterable whereType() => new EmptyUnmodifiableSet(); diff --git a/pkgs/collection/lib/src/queue_list.dart b/pkgs/collection/lib/src/queue_list.dart index 8b68cc85..8b706bf8 100644 --- a/pkgs/collection/lib/src/queue_list.dart +++ b/pkgs/collection/lib/src/queue_list.dart @@ -98,15 +98,10 @@ class QueueList extends Object with ListMixin implements Queue { } } - QueueList cast() { - QueueList self = this; - if (self is QueueList) { - return self; - } - return retype(); - } + QueueList cast() => QueueList._castFrom(this); - QueueList retype() => QueueList._castFrom(this); + @deprecated + QueueList retype() => cast(); String toString() => IterableBase.iterableToFullString(this, "{", "}"); diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index cead5012..f7fe5783 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -61,7 +61,8 @@ abstract class _DelegatingIterableBase implements Iterable { E reduce(E combine(E value, E element)) => _base.reduce(combine); - Iterable retype() => _base.retype(); + @deprecated + Iterable retype() => cast(); E get single => _base.single; @@ -221,7 +222,8 @@ class DelegatingList extends DelegatingIterable implements List { _listBase.retainWhere(test); } - List retype() => _listBase.retype(); + @deprecated + List retype() => cast(); Iterable get reversed => _listBase.reversed; @@ -301,7 +303,8 @@ class DelegatingSet extends DelegatingIterable implements Set { _setBase.retainAll(elements); } - Set retype() => _setBase.retype(); + @deprecated + Set retype() => cast(); void retainWhere(bool test(E element)) { _setBase.retainWhere(test); @@ -368,7 +371,8 @@ class DelegatingQueue extends DelegatingIterable implements Queue { _baseQueue.retainWhere(test); } - Queue retype() => _baseQueue.retype(); + @deprecated + Queue retype() => cast(); E removeFirst() => _baseQueue.removeFirst(); @@ -446,7 +450,8 @@ class DelegatingMap implements Map { void removeWhere(bool test(K key, V value)) => _base.removeWhere(test); - Map retype() => _base.retype(); + @deprecated + Map retype() => cast(); Iterable get values => _base.values; @@ -518,6 +523,7 @@ class MapKeySet extends _DelegatingIterableBase E lookup(Object element) => throw new UnsupportedError("MapKeySet doesn't support lookup()."); + @deprecated Set retype() => Set.castFrom(this); /// Returns a new set which contains all the elements of [this] and [other]. @@ -669,6 +675,7 @@ class MapValueSet extends _DelegatingIterableBase implements Set { void retainWhere(bool test(V element)) => removeWhere((element) => !test(element)); + @deprecated Set retype() => Set.castFrom(this); /// Returns a new set which contains all the elements of [this] and [other]. diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 06f183e9..323f039e 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,12 +1,12 @@ name: collection -version: 1.14.10-dev +version: 1.14.10 author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection environment: # Required for Dart 2.0 collection changes. - sdk: '>=2.0.0-dev.49.0 <2.0.0' + sdk: '>=2.0.0-dev.55.0 <2.0.0' dev_dependencies: build_runner: ^0.8.0 diff --git a/pkgs/collection/test/canonicalized_map_test.dart b/pkgs/collection/test/canonicalized_map_test.dart index 4049d857..078e57c0 100644 --- a/pkgs/collection/test/canonicalized_map_test.dart +++ b/pkgs/collection/test/canonicalized_map_test.dart @@ -155,8 +155,8 @@ void main() { expect(map, {"01": "value 01", "2": "value 2"}); }); - test("retype returns a new map instance", () { - expect(map.retype(), isNot(same(map))); + test("cast returns a new map instance", () { + expect(map.cast(), isNot(same(map))); }); }); diff --git a/pkgs/collection/test/queue_list_test.dart b/pkgs/collection/test/queue_list_test.dart index ed26a65c..639eb68a 100644 --- a/pkgs/collection/test/queue_list_test.dart +++ b/pkgs/collection/test/queue_list_test.dart @@ -253,11 +253,6 @@ void main() { }); }); - test("cast uses the same QueueList if possible", () { - var queue = new QueueList(); - expect(queue.cast(), same(queue)); - }, skip: isDart2 ? false : 'Requires a Dart2 runtime'); - test("cast does not throw on mutation when the type is valid", () { var patternQueue = new QueueList()..addAll(['a', 'b']); var stringQueue = patternQueue.cast(); @@ -294,9 +289,9 @@ void main() { ); }); - test("retype returns a new QueueList", () { + test("cast returns a new QueueList", () { var queue = new QueueList(); - expect(queue.retype(), isNot(same(queue))); + expect(queue.cast(), isNot(same(queue))); }); } From 9e1e1406c267e547b1a59242a5f1e314d8f26258 Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Wed, 13 Jun 2018 07:34:38 -0700 Subject: [PATCH 101/235] misc(test): support latest build_web_compilers (dart-lang/collection#96) --- pkgs/collection/pubspec.yaml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 323f039e..d082af0e 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.14.10 +version: 1.14.11-dev author: Dart Team description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection @@ -11,5 +11,5 @@ environment: dev_dependencies: build_runner: ^0.8.0 build_test: ^0.10.0 - build_web_compilers: ^0.3.1 + build_web_compilers: ^0.4.0 test: ^0.12.35 From 613c5fa60357e6856484ccae88f6797a1a9edcbf Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Tue, 26 Jun 2018 09:56:14 -0700 Subject: [PATCH 102/235] misc: update dev_dependencies (dart-lang/collection#98) --- pkgs/collection/pubspec.yaml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index d082af0e..e894bae7 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -9,7 +9,7 @@ environment: sdk: '>=2.0.0-dev.55.0 <2.0.0' dev_dependencies: - build_runner: ^0.8.0 + build_runner: ^0.9.0 build_test: ^0.10.0 build_web_compilers: ^0.4.0 - test: ^0.12.35 + test: ^1.0.0 From 309c116f65451606618549d7f63765179bb1fcdc Mon Sep 17 00:00:00 2001 From: Patrice Chalin Date: Wed, 18 Jul 2018 19:30:35 -0400 Subject: [PATCH 103/235] Allow SDK versions to <3.0.0 (dart-lang/collection#99) Fix some deprecated usages in tests. --- pkgs/collection/CHANGELOG.md | 4 ++++ pkgs/collection/analysis_options.yaml | 1 - pkgs/collection/pubspec.yaml | 7 ++++--- pkgs/collection/test/priority_queue_test.dart | 3 +-- pkgs/collection/test/queue_list_test.dart | 6 +++--- pkgs/collection/test/utils.dart | 2 +- 6 files changed, 13 insertions(+), 10 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 3c9d4dd9..f806f93c 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.14.11 + +* Set max SDK version to `<3.0.0`. + ## 1.14.10 * Fix the parameter names in overridden methods to match the source. diff --git a/pkgs/collection/analysis_options.yaml b/pkgs/collection/analysis_options.yaml index 705910c7..d8300efd 100644 --- a/pkgs/collection/analysis_options.yaml +++ b/pkgs/collection/analysis_options.yaml @@ -1,5 +1,4 @@ analyzer: - strong-mode: true errors: unused_element: error unused_import: error diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index e894bae7..c1441de0 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,12 +1,13 @@ name: collection -version: 1.14.11-dev -author: Dart Team +version: 1.14.11 + description: Collections and utilities functions and classes related to collections. +author: Dart Team homepage: https://www.github.com/dart-lang/collection environment: # Required for Dart 2.0 collection changes. - sdk: '>=2.0.0-dev.55.0 <2.0.0' + sdk: '>=2.0.0-dev.55.0 <3.0.0' dev_dependencies: build_runner: ^0.9.0 diff --git a/pkgs/collection/test/priority_queue_test.dart b/pkgs/collection/test/priority_queue_test.dart index bcb892f8..92b6d330 100644 --- a/pkgs/collection/test/priority_queue_test.dart +++ b/pkgs/collection/test/priority_queue_test.dart @@ -16,8 +16,7 @@ void main() { void testDefault() { test('new PriorityQueue() returns a HeapPriorityQueue', () { - expect( - new PriorityQueue(), new isInstanceOf>()); + expect(new PriorityQueue(), new TypeMatcher>()); }); testInt(() => new PriorityQueue()); testCustom((comparator) => new PriorityQueue(comparator)); diff --git a/pkgs/collection/test/queue_list_test.dart b/pkgs/collection/test/queue_list_test.dart index 639eb68a..543cbae4 100644 --- a/pkgs/collection/test/queue_list_test.dart +++ b/pkgs/collection/test/queue_list_test.dart @@ -259,7 +259,7 @@ void main() { stringQueue.addAll(['c', 'd']); expect( stringQueue, - const isInstanceOf>(), + const TypeMatcher>(), reason: 'Expected QueueList, got ${stringQueue.runtimeType}', skip: isDart2 ? false : 'Cast does nothing in Dart1', ); @@ -278,7 +278,7 @@ void main() { var numQueue = stringQueue.cast(); expect( numQueue, - const isInstanceOf>(), + const TypeMatcher>(), reason: 'Expected QueueList, got ${numQueue.runtimeType}', skip: isDart2 ? false : 'Cast does nothing in Dart1', ); @@ -318,4 +318,4 @@ QueueList withInternalGap() { /// Returns a matcher that expects that a closure throws a /// [ConcurrentModificationError]. final throwsConcurrentModificationError = - throwsA(new isInstanceOf()); + throwsA(new TypeMatcher()); diff --git a/pkgs/collection/test/utils.dart b/pkgs/collection/test/utils.dart index 73926a32..a97275eb 100644 --- a/pkgs/collection/test/utils.dart +++ b/pkgs/collection/test/utils.dart @@ -4,7 +4,7 @@ import "package:test/test.dart"; -final Matcher throwsCastError = throwsA(new isInstanceOf()); +final Matcher throwsCastError = throwsA(new TypeMatcher()); /// A hack to determine whether we are running in a Dart 2 runtime. final bool isDart2 = _isTypeArgString(''); From 2b6dabc90bd98195bd56c3f422123f8c18841350 Mon Sep 17 00:00:00 2001 From: Steve Alexander Date: Tue, 21 Aug 2018 02:04:21 +0100 Subject: [PATCH 104/235] Correctly describe this as a Set not a Map in docs (dart-lang/collection#100) --- pkgs/collection/lib/src/equality_set.dart | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/pkgs/collection/lib/src/equality_set.dart b/pkgs/collection/lib/src/equality_set.dart index 6f6a4267..f4abec60 100644 --- a/pkgs/collection/lib/src/equality_set.dart +++ b/pkgs/collection/lib/src/equality_set.dart @@ -7,7 +7,7 @@ import 'dart:collection'; import 'equality.dart'; import 'wrappers.dart'; -/// A [Map] whose key equality is determined by an [Equality] object. +/// A [Set] whose key equality is determined by an [Equality] object. class EqualitySet extends DelegatingSet { /// Creates a set with equality based on [equality]. EqualitySet(Equality equality) From a1534f450a18fb2694c15692e7f2ad92f5922af2 Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Mon, 8 Oct 2018 13:26:50 -0700 Subject: [PATCH 105/235] Support the latest build_runner (dart-lang/collection#101) --- pkgs/collection/pubspec.yaml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index c1441de0..9734515f 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.14.11 +version: 1.14.12-dev description: Collections and utilities functions and classes related to collections. author: Dart Team @@ -10,7 +10,7 @@ environment: sdk: '>=2.0.0-dev.55.0 <3.0.0' dev_dependencies: - build_runner: ^0.9.0 + build_runner: ^1.0.0 build_test: ^0.10.0 build_web_compilers: ^0.4.0 test: ^1.0.0 From a86246f562bcbadf2d443d73640a26a66703e950 Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Mon, 10 Dec 2018 19:38:00 -0800 Subject: [PATCH 106/235] dev dep: latest build_web_compilers (dart-lang/collection#102) --- pkgs/collection/pubspec.yaml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 9734515f..23587a78 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -12,5 +12,5 @@ environment: dev_dependencies: build_runner: ^1.0.0 build_test: ^0.10.0 - build_web_compilers: ^0.4.0 + build_web_compilers: ^1.0.0 test: ^1.0.0 From 12b359832c6fe016d39e2626b955109d9f972673 Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Wed, 3 Apr 2019 13:58:14 -0700 Subject: [PATCH 107/235] Travis: test oldest support SDK (dart-lang/collection#103) * Drop web tests * Drop unused files * Delete travis.sh --- pkgs/collection/.travis.yml | 57 +++++++------------------ pkgs/collection/codereview.settings | 3 -- pkgs/collection/pubspec.yaml | 2 +- pkgs/collection/tool/travis.sh | 65 ----------------------------- 4 files changed, 17 insertions(+), 110 deletions(-) delete mode 100644 pkgs/collection/codereview.settings delete mode 100755 pkgs/collection/tool/travis.sh diff --git a/pkgs/collection/.travis.yml b/pkgs/collection/.travis.yml index b4d1316d..433c12e9 100644 --- a/pkgs/collection/.travis.yml +++ b/pkgs/collection/.travis.yml @@ -1,41 +1,23 @@ - language: dart -# Gives more resources on Travis (8GB Ram, 2 CPUs). -# Do not remove without verifying w/ Travis. -sudo: required -addons: - chrome: stable +dart: +- 2.0.0 +- dev -# Build stages: https://docs.travis-ci.com/user/build-stages/. -stages: - - presubmit - - build - - testing +dart_task: +- test -# 1. Run dartfmt, dartanalyzer, pub run test (VM). -# 2. Then run a build. -# 3. Then run tests compiled via dartdevc and dart2js. -jobs: +matrix: include: - - stage: presubmit - script: ./tool/travis.sh dartfmt - dart: dev - - stage: presubmit - script: ./tool/travis.sh dartanalyzer - dart: dev - - stage: build - script: ./tool/travis.sh dartdevc_build - dart: dev - - stage: testing - script: ./tool/travis.sh vm_test - dart: dev - - stage: testing - script: ./tool/travis.sh dartdevc_test - dart: dev - - stage: testing - script: ./tool/travis.sh dart2js_test - dart: dev + # Only validate formatting using the dev release + - dart: dev + dart_task: dartfmt + - dart: dev + dart_task: + dartanalyzer: --fatal-infos --fatal-warnings . + - dart: 2.0.0 + dart_task: + dartanalyzer: --fatal-warnings . # Only building master means that we don't run two builds for each pull request. branches: @@ -44,11 +26,4 @@ branches: # Incremental pub cache and builds. cache: directories: - - $HOME/.pub-cache - - .dart_tool - -# Necessary for Chrome and Firefox to run -before_install: - - export DISPLAY=:99.0 - - sh -e /etc/init.d/xvfb start - - "t=0; until (xdpyinfo -display :99 &> /dev/null || test $t -gt 10); do sleep 1; let t=$t+1; done" + - $HOME/.pub-cache diff --git a/pkgs/collection/codereview.settings b/pkgs/collection/codereview.settings deleted file mode 100644 index 4afc2cf6..00000000 --- a/pkgs/collection/codereview.settings +++ /dev/null @@ -1,3 +0,0 @@ -CODE_REVIEW_SERVER: http://codereview.chromium.org/ -VIEW_VC: https://github.com/dart-lang/collection/commit/ -CC_LIST: reviews@dartlang.org diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 23587a78..615838a2 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -7,7 +7,7 @@ homepage: https://www.github.com/dart-lang/collection environment: # Required for Dart 2.0 collection changes. - sdk: '>=2.0.0-dev.55.0 <3.0.0' + sdk: '>=2.0.0 <3.0.0' dev_dependencies: build_runner: ^1.0.0 diff --git a/pkgs/collection/tool/travis.sh b/pkgs/collection/tool/travis.sh deleted file mode 100755 index 0e584b9e..00000000 --- a/pkgs/collection/tool/travis.sh +++ /dev/null @@ -1,65 +0,0 @@ -# Copyright 2018 the Dart project authors. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - -#!/bin/bash - -if [ "$#" == "0" ]; then - echo -e '\033[31mAt least one task argument must be provided!\033[0m' - exit 1 -fi - -EXIT_CODE=0 - -while (( "$#" )); do - TASK=$1 - case $TASK in - dartfmt) echo - echo -e '\033[1mTASK: dartfmt\033[22m' - echo -e 'dartfmt -n --set-exit-if-changed .' - dartfmt -n --set-exit-if-changed . || EXIT_CODE=$? - ;; - dartanalyzer) echo - echo -e '\033[1mTASK: dartanalyzer\033[22m' - echo -e 'dartanalyzer --fatal-warnings .' - dartanalyzer --fatal-warnings . || EXIT_CODE=$? - ;; - vm_test) echo - echo -e '\033[1mTASK: vm_test\033[22m' - echo -e 'pub run test -P travis -p vm -x requires-dart2' - pub run test -p vm || EXIT_CODE=$? - ;; - dartdevc_build) echo - echo -e '\033[1mTASK: build\033[22m' - echo -e 'pub run build_runner build --fail-on-severe' - pub run build_runner build --fail-on-severe || EXIT_CODE=$? - ;; - dartdevc_test) echo - echo -e '\033[1mTASK: dartdevc_test\033[22m' - echo -e 'pub run build_runner test -- -P travis -p chrome' - pub run build_runner test -- -p chrome || EXIT_CODE=$? - ;; - dart2js_test) echo - echo -e '\033[1mTASK: dart2js_test\033[22m' - echo -e 'pub run test -P travis -p chrome -x requires-dart2' - pub run test -p chrome || EXIT_CODE=$? - ;; - *) echo -e "\033[31mNot expecting TASK '${TASK}'. Error!\033[0m" - EXIT_CODE=1 - ;; - esac - - shift -done - -exit $EXIT_CODE From 32a58ab4ea6108d049e5caa950ae112ec84b1dd6 Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Wed, 3 Apr 2019 13:59:43 -0700 Subject: [PATCH 108/235] remove dart_test.yaml --- pkgs/collection/dart_test.yaml | 22 ---------------------- 1 file changed, 22 deletions(-) delete mode 100644 pkgs/collection/dart_test.yaml diff --git a/pkgs/collection/dart_test.yaml b/pkgs/collection/dart_test.yaml deleted file mode 100644 index d2b9d1d5..00000000 --- a/pkgs/collection/dart_test.yaml +++ /dev/null @@ -1,22 +0,0 @@ -presets: - # When run with -P travis, we have different settings/options. - # - # 1: We don't use Chrome --headless: - # 2: We use --reporter expanded - # 3: We skip anything tagged "fails-on-travis". - travis: - # TODO(https://github.com/dart-lang/test/issues/772) - override_platforms: - chrome: - settings: - headless: false - - # Don't run any tests that are tagged ["fails-on-travis"]. - exclude_tags: "fails-on-travis" - - # https://github.com/dart-lang/test/blob/master/doc/configuration.md#reporter - reporter: expanded - -platforms: - - chrome - - vm From 1b2219a7b50418766f4d32565119b0710d79daa9 Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Wed, 1 May 2019 13:49:41 -0700 Subject: [PATCH 109/235] Removed unused build dev_dependencies --- pkgs/collection/pubspec.yaml | 3 --- 1 file changed, 3 deletions(-) diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 615838a2..983f3f42 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -10,7 +10,4 @@ environment: sdk: '>=2.0.0 <3.0.0' dev_dependencies: - build_runner: ^1.0.0 - build_test: ^0.10.0 - build_web_compilers: ^1.0.0 test: ^1.0.0 From 4d44135df756cb576e6b64c3caa7b1a4acd1d922 Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Wed, 1 May 2019 13:52:49 -0700 Subject: [PATCH 110/235] Enable and fix pedantic and dartfmt lints --- pkgs/collection/analysis_options.yaml | 5 ++ pkgs/collection/lib/src/algorithms.dart | 8 +- .../collection/lib/src/canonicalized_map.dart | 27 +++--- .../combined_wrappers/combined_iterable.dart | 2 +- .../src/combined_wrappers/combined_list.dart | 4 +- .../src/combined_wrappers/combined_map.dart | 2 +- .../lib/src/empty_unmodifiable_set.dart | 20 ++--- pkgs/collection/lib/src/equality.dart | 36 ++++---- pkgs/collection/lib/src/equality_map.dart | 4 +- pkgs/collection/lib/src/equality_set.dart | 4 +- pkgs/collection/lib/src/functions.dart | 12 +-- pkgs/collection/lib/src/iterable_zip.dart | 4 +- pkgs/collection/lib/src/priority_queue.dart | 12 +-- pkgs/collection/lib/src/queue_list.dart | 22 ++--- pkgs/collection/lib/src/union_set.dart | 8 +- .../lib/src/union_set_controller.dart | 6 +- .../lib/src/unmodifiable_wrappers.dart | 7 +- pkgs/collection/lib/src/wrappers.dart | 14 +-- pkgs/collection/pubspec.yaml | 1 + pkgs/collection/test/algorithms_test.dart | 90 +++++++++---------- .../test/canonicalized_map_test.dart | 20 ++--- .../test/combined_wrapper/iterable_test.dart | 18 ++-- .../test/combined_wrapper/list_test.dart | 14 +-- .../test/combined_wrapper/map_test.dart | 16 ++-- pkgs/collection/test/comparators_test.dart | 6 +- pkgs/collection/test/equality_map_test.dart | 4 +- pkgs/collection/test/equality_set_test.dart | 4 +- pkgs/collection/test/equality_test.dart | 77 ++++++++-------- pkgs/collection/test/functions_test.dart | 40 ++++----- pkgs/collection/test/iterable_zip_test.dart | 41 +++++---- pkgs/collection/test/priority_queue_test.dart | 19 ++-- pkgs/collection/test/queue_list_test.dart | 54 +++++------ .../test/union_set_controller_test.dart | 8 +- pkgs/collection/test/union_set_test.dart | 54 +++++------ .../test/unmodifiable_collection_test.dart | 79 ++++++++-------- pkgs/collection/test/utils.dart | 2 +- pkgs/collection/test/wrapper_test.dart | 59 ++++++------ 37 files changed, 397 insertions(+), 406 deletions(-) diff --git a/pkgs/collection/analysis_options.yaml b/pkgs/collection/analysis_options.yaml index d8300efd..c5a2a271 100644 --- a/pkgs/collection/analysis_options.yaml +++ b/pkgs/collection/analysis_options.yaml @@ -1,3 +1,4 @@ +include: package:pedantic/analysis_options.yaml analyzer: errors: unused_element: error @@ -30,7 +31,11 @@ linter: - library_prefixes - non_constant_identifier_names - only_throw_errors + - prefer_equal_for_default_values - prefer_final_fields + - prefer_generic_function_type_aliases - prefer_is_not_empty - slash_for_doc_comments - type_init_formals + - unnecessary_const + - unnecessary_new diff --git a/pkgs/collection/lib/src/algorithms.dart b/pkgs/collection/lib/src/algorithms.dart index 0d37d644..9a9e3712 100644 --- a/pkgs/collection/lib/src/algorithms.dart +++ b/pkgs/collection/lib/src/algorithms.dart @@ -65,7 +65,7 @@ int lowerBound(List sortedList, T value, {int compare(T a, T b)}) { /// /// A sub-range of a list can be shuffled by providing [start] and [end]. void shuffle(List list, [int start = 0, int end]) { - var random = new math.Random(); + var random = math.Random(); if (end == null) end = list.length; int length = end - start; while (length > 1) { @@ -108,7 +108,7 @@ void _reverse(List list, int start, int end) { /// This insertion sort is stable: Equal elements end up in the same order /// as they started in. void insertionSort(List list, - {int compare(T a, T b), int start: 0, int end}) { + {int compare(T a, T b), int start = 0, int end}) { // If the same method could have both positional and named optional // parameters, this should be (list, [start, end], {compare}). compare ??= defaultCompare(); @@ -151,7 +151,7 @@ const int _MERGE_SORT_LIMIT = 32; /// This merge sort is stable: Equal elements end up in the same order /// as they started in. void mergeSort(List list, - {int start: 0, int end, int compare(T a, T b)}) { + {int start = 0, int end, int compare(T a, T b)}) { end ??= list.length; compare ??= defaultCompare(); @@ -171,7 +171,7 @@ void mergeSort(List list, int firstLength = middle - start; int secondLength = end - middle; // secondLength is always the same as firstLength, or one greater. - var scratchSpace = new List(secondLength); + var scratchSpace = List(secondLength); _mergeSort(list, compare, middle, end, scratchSpace, 0); int firstTarget = end - firstLength; _mergeSort(list, compare, start, middle, list, firstTarget); diff --git a/pkgs/collection/lib/src/canonicalized_map.dart b/pkgs/collection/lib/src/canonicalized_map.dart index 9e1d5cf0..80324b2b 100644 --- a/pkgs/collection/lib/src/canonicalized_map.dart +++ b/pkgs/collection/lib/src/canonicalized_map.dart @@ -6,9 +6,9 @@ import 'dart:collection'; import 'utils.dart'; -typedef C _Canonicalize(K key); +typedef _Canonicalize = C Function(K key); -typedef bool _IsValidKey(Object key); +typedef _IsValidKey = bool Function(Object key); /// A map whose keys are converted to canonical values of type `C`. /// @@ -24,7 +24,7 @@ class CanonicalizedMap implements Map { final _IsValidKey _isValidKeyFn; - final _base = new Map>(); + final _base = Map>(); /// Creates an empty canonicalized map. /// @@ -62,16 +62,15 @@ class CanonicalizedMap implements Map { void operator []=(K key, V value) { if (!_isValidKey(key)) return; - _base[_canonicalize(key)] = new Pair(key, value); + _base[_canonicalize(key)] = Pair(key, value); } void addAll(Map other) { other.forEach((key, value) => this[key] = value); } - void addEntries(Iterable> entries) => - _base.addEntries(entries.map( - (e) => new MapEntry(_canonicalize(e.key), new Pair(e.key, e.value)))); + void addEntries(Iterable> entries) => _base.addEntries( + entries.map((e) => MapEntry(_canonicalize(e.key), Pair(e.key, e.value)))); Map cast() => _base.cast(); @@ -88,7 +87,7 @@ class CanonicalizedMap implements Map { _base.values.any((pair) => pair.last == value); Iterable> get entries => - _base.entries.map((e) => new MapEntry(e.value.first, e.value.last)); + _base.entries.map((e) => MapEntry(e.value.first, e.value.last)); void forEach(void f(K key, V value)) { _base.forEach((key, pair) => f(pair.first, pair.last)); @@ -107,7 +106,7 @@ class CanonicalizedMap implements Map { V putIfAbsent(K key, V ifAbsent()) { return _base - .putIfAbsent(_canonicalize(key), () => new Pair(key, ifAbsent())) + .putIfAbsent(_canonicalize(key), () => Pair(key, ifAbsent())) .last; } @@ -124,12 +123,12 @@ class CanonicalizedMap implements Map { Map retype() => cast(); V update(K key, V update(V value), {V ifAbsent()}) => _base - .update(_canonicalize(key), (pair) => new Pair(key, update(pair.last)), - ifAbsent: ifAbsent == null ? null : () => new Pair(key, ifAbsent())) + .update(_canonicalize(key), (pair) => Pair(key, update(pair.last)), + ifAbsent: ifAbsent == null ? null : () => Pair(key, ifAbsent())) .last; - void updateAll(V update(K key, V value)) => _base.updateAll( - (_, pair) => new Pair(pair.first, update(pair.first, pair.last))); + void updateAll(V update(K key, V value)) => _base + .updateAll((_, pair) => Pair(pair.first, update(pair.first, pair.last))); Iterable get values => _base.values.map((pair) => pair.last); @@ -139,7 +138,7 @@ class CanonicalizedMap implements Map { return '{...}'; } - var result = new StringBuffer(); + var result = StringBuffer(); try { _toStringVisiting.add(this); result.write('{'); diff --git a/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart b/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart index 511876ed..3df5e820 100644 --- a/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart +++ b/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart @@ -19,7 +19,7 @@ class CombinedIterableView extends IterableBase { const CombinedIterableView(this._iterables); Iterator get iterator => - new _CombinedIterator(_iterables.map((i) => i.iterator).iterator); + _CombinedIterator(_iterables.map((i) => i.iterator).iterator); // Special cased contains/isEmpty/length since many iterables have an // efficient implementation instead of running through the entire iterator. diff --git a/pkgs/collection/lib/src/combined_wrappers/combined_list.dart b/pkgs/collection/lib/src/combined_wrappers/combined_list.dart index 21a68f6b..593490ea 100644 --- a/pkgs/collection/lib/src/combined_wrappers/combined_list.dart +++ b/pkgs/collection/lib/src/combined_wrappers/combined_list.dart @@ -16,7 +16,7 @@ import 'dart:collection'; class CombinedListView extends ListBase implements UnmodifiableListView { static void _throw() { - throw new UnsupportedError('Cannot modify an unmodifiable List'); + throw UnsupportedError('Cannot modify an unmodifiable List'); } /// The lists that this combines. @@ -40,7 +40,7 @@ class CombinedListView extends ListBase } index -= list.length; } - throw new RangeError.index(initialIndex, this, 'index', null, length); + throw RangeError.index(initialIndex, this, 'index', null, length); } void operator []=(int index, T value) { diff --git a/pkgs/collection/lib/src/combined_wrappers/combined_map.dart b/pkgs/collection/lib/src/combined_wrappers/combined_map.dart index 8c2760b7..aa86b5db 100644 --- a/pkgs/collection/lib/src/combined_wrappers/combined_map.dart +++ b/pkgs/collection/lib/src/combined_wrappers/combined_map.dart @@ -48,5 +48,5 @@ class CombinedMapView extends UnmodifiableMapBase { /// Unlike most [Map] implementations, modifying an individual map while /// iterating the keys will _sometimes_ throw. This behavior may change in /// the future. - Iterable get keys => new CombinedIterableView(_maps.map((m) => m.keys)); + Iterable get keys => CombinedIterableView(_maps.map((m) => m.keys)); } diff --git a/pkgs/collection/lib/src/empty_unmodifiable_set.dart b/pkgs/collection/lib/src/empty_unmodifiable_set.dart index 997619d6..2c9ed301 100644 --- a/pkgs/collection/lib/src/empty_unmodifiable_set.dart +++ b/pkgs/collection/lib/src/empty_unmodifiable_set.dart @@ -12,27 +12,27 @@ import 'unmodifiable_wrappers.dart'; class EmptyUnmodifiableSet extends IterableBase implements UnmodifiableSetView { static T _throw() { - throw new UnsupportedError("Cannot modify an unmodifiable Set"); + throw UnsupportedError("Cannot modify an unmodifiable Set"); } - Iterator get iterator => new Iterable.empty().iterator; + Iterator get iterator => Iterable.empty().iterator; int get length => 0; const EmptyUnmodifiableSet(); - EmptyUnmodifiableSet cast() => new EmptyUnmodifiableSet(); + EmptyUnmodifiableSet cast() => EmptyUnmodifiableSet(); bool contains(Object element) => false; bool containsAll(Iterable other) => other.isEmpty; - Iterable followedBy(Iterable other) => new Set.from(other); + Iterable followedBy(Iterable other) => Set.from(other); E lookup(Object element) => null; @deprecated - EmptyUnmodifiableSet retype() => new EmptyUnmodifiableSet(); + EmptyUnmodifiableSet retype() => EmptyUnmodifiableSet(); E singleWhere(bool test(E element), {E orElse()}) => super.singleWhere(test); - Iterable whereType() => new EmptyUnmodifiableSet(); - Set toSet() => new Set(); - Set union(Set other) => new Set.from(other); - Set intersection(Set other) => new Set(); - Set difference(Set other) => new Set(); + Iterable whereType() => EmptyUnmodifiableSet(); + Set toSet() => Set(); + Set union(Set other) => Set.from(other); + Set intersection(Set other) => Set(); + Set difference(Set other) => Set(); bool add(E value) => _throw(); void addAll(Iterable elements) => _throw(); diff --git a/pkgs/collection/lib/src/equality.dart b/pkgs/collection/lib/src/equality.dart index 855503e1..5f4038ad 100644 --- a/pkgs/collection/lib/src/equality.dart +++ b/pkgs/collection/lib/src/equality.dart @@ -30,7 +30,7 @@ abstract class Equality { bool isValidKey(Object o); } -typedef F _GetKey(E object); +typedef _GetKey = F Function(E object); /// Equality of objects based on derived values. /// @@ -197,7 +197,7 @@ abstract class _UnorderedEquality> bool equals(T elements1, T elements2) { if (identical(elements1, elements2)) return true; if (elements1 == null || elements2 == null) return false; - HashMap counts = new HashMap( + HashMap counts = HashMap( equals: _elementEquality.equals, hashCode: _elementEquality.hash, isValidKey: _elementEquality.isValidKey); @@ -296,8 +296,8 @@ class MapEquality implements Equality> { final Equality _keyEquality; final Equality _valueEquality; const MapEquality( - {Equality keys: const DefaultEquality(), - Equality values: const DefaultEquality()}) + {Equality keys = const DefaultEquality(), + Equality values = const DefaultEquality()}) : _keyEquality = keys, _valueEquality = values; @@ -306,15 +306,15 @@ class MapEquality implements Equality> { if (map1 == null || map2 == null) return false; int length = map1.length; if (length != map2.length) return false; - Map<_MapEntry, int> equalElementCounts = new HashMap(); + Map<_MapEntry, int> equalElementCounts = HashMap(); for (K key in map1.keys) { - _MapEntry entry = new _MapEntry(this, key, map1[key]); + _MapEntry entry = _MapEntry(this, key, map1[key]); int count = equalElementCounts[entry]; if (count == null) count = 0; equalElementCounts[entry] = count + 1; } for (K key in map2.keys) { - _MapEntry entry = new _MapEntry(this, key, map2[key]); + _MapEntry entry = _MapEntry(this, key, map2[key]); int count = equalElementCounts[entry]; if (count == null || count == 0) return false; equalElementCounts[entry] = count - 1; @@ -413,35 +413,33 @@ class DeepCollectionEquality implements Equality { bool equals(e1, e2) { if (e1 is Set) { - return e2 is Set && new SetEquality(this).equals(e1, e2); + return e2 is Set && SetEquality(this).equals(e1, e2); } if (e1 is Map) { - return e2 is Map && - new MapEquality(keys: this, values: this).equals(e1, e2); + return e2 is Map && MapEquality(keys: this, values: this).equals(e1, e2); } if (!_unordered) { if (e1 is List) { - return e2 is List && new ListEquality(this).equals(e1, e2); + return e2 is List && ListEquality(this).equals(e1, e2); } if (e1 is Iterable) { - return e2 is Iterable && new IterableEquality(this).equals(e1, e2); + return e2 is Iterable && IterableEquality(this).equals(e1, e2); } } else if (e1 is Iterable) { if (e1 is List != e2 is List) return false; - return e2 is Iterable && - new UnorderedIterableEquality(this).equals(e1, e2); + return e2 is Iterable && UnorderedIterableEquality(this).equals(e1, e2); } return _base.equals(e1, e2); } int hash(Object o) { - if (o is Set) return new SetEquality(this).hash(o); - if (o is Map) return new MapEquality(keys: this, values: this).hash(o); + if (o is Set) return SetEquality(this).hash(o); + if (o is Map) return MapEquality(keys: this, values: this).hash(o); if (!_unordered) { - if (o is List) return new ListEquality(this).hash(o); - if (o is Iterable) return new IterableEquality(this).hash(o); + if (o is List) return ListEquality(this).hash(o); + if (o is Iterable) return IterableEquality(this).hash(o); } else if (o is Iterable) { - return new UnorderedIterableEquality(this).hash(o); + return UnorderedIterableEquality(this).hash(o); } return _base.hash(o); } diff --git a/pkgs/collection/lib/src/equality_map.dart b/pkgs/collection/lib/src/equality_map.dart index 14f074c6..542977f6 100644 --- a/pkgs/collection/lib/src/equality_map.dart +++ b/pkgs/collection/lib/src/equality_map.dart @@ -11,7 +11,7 @@ import 'wrappers.dart'; class EqualityMap extends DelegatingMap { /// Creates a map with equality based on [equality]. EqualityMap(Equality equality) - : super(new LinkedHashMap( + : super(LinkedHashMap( equals: equality.equals, hashCode: equality.hash, isValidKey: equality.isValidKey)); @@ -22,7 +22,7 @@ class EqualityMap extends DelegatingMap { /// If [other] has multiple keys that are equivalent according to [equality], /// the last one reached during iteration takes precedence. EqualityMap.from(Equality equality, Map other) - : super(new LinkedHashMap( + : super(LinkedHashMap( equals: equality.equals, hashCode: equality.hash, isValidKey: equality.isValidKey)) { diff --git a/pkgs/collection/lib/src/equality_set.dart b/pkgs/collection/lib/src/equality_set.dart index f4abec60..8edbba5b 100644 --- a/pkgs/collection/lib/src/equality_set.dart +++ b/pkgs/collection/lib/src/equality_set.dart @@ -11,7 +11,7 @@ import 'wrappers.dart'; class EqualitySet extends DelegatingSet { /// Creates a set with equality based on [equality]. EqualitySet(Equality equality) - : super(new LinkedHashSet( + : super(LinkedHashSet( equals: equality.equals, hashCode: equality.hash, isValidKey: equality.isValidKey)); @@ -22,7 +22,7 @@ class EqualitySet extends DelegatingSet { /// If [other] has multiple values that are equivalent according to /// [equality], the first one reached during iteration takes precedence. EqualitySet.from(Equality equality, Iterable other) - : super(new LinkedHashSet( + : super(LinkedHashSet( equals: equality.equals, hashCode: equality.hash, isValidKey: equality.isValidKey)) { diff --git a/pkgs/collection/lib/src/functions.dart b/pkgs/collection/lib/src/functions.dart index b4ff9a9d..83e0493a 100644 --- a/pkgs/collection/lib/src/functions.dart +++ b/pkgs/collection/lib/src/functions.dart @@ -32,7 +32,7 @@ Map mapMap(Map map, /// values. If [value] is omitted, the value from [map2] is used. Map mergeMaps(Map map1, Map map2, {V value(V value1, V value2)}) { - var result = new Map.from(map1); + var result = Map.from(map1); if (value == null) return result..addAll(map2); map2.forEach((key, mapValue) { @@ -118,7 +118,7 @@ Map> transitiveClosure(Map> graph) { // [Warshall's algorithm]: https://en.wikipedia.org/wiki/Floyd%E2%80%93Warshall_algorithm#Applications_and_generalizations. var result = >{}; graph.forEach((vertex, edges) { - result[vertex] = new Set.from(edges); + result[vertex] = Set.from(edges); }); // Lists are faster to iterate than maps, so we create a list since we're @@ -160,9 +160,9 @@ List> stronglyConnectedComponents(Map> graph) { // The order of these doesn't matter, so we use un-linked implementations to // avoid unnecessary overhead. - var indices = new HashMap(); - var lowLinks = new HashMap(); - var onStack = new HashSet(); + var indices = HashMap(); + var lowLinks = HashMap(); + var onStack = HashSet(); strongConnect(T vertex) { indices[vertex] = index; @@ -182,7 +182,7 @@ List> stronglyConnectedComponents(Map> graph) { } if (lowLinks[vertex] == indices[vertex]) { - var component = new Set(); + var component = Set(); T neighbor; do { neighbor = stack.removeLast(); diff --git a/pkgs/collection/lib/src/iterable_zip.dart b/pkgs/collection/lib/src/iterable_zip.dart index b9834370..c2de80c7 100644 --- a/pkgs/collection/lib/src/iterable_zip.dart +++ b/pkgs/collection/lib/src/iterable_zip.dart @@ -23,7 +23,7 @@ class IterableZip extends IterableBase> { Iterator> get iterator { var iterators = _iterables.map((x) => x.iterator).toList(growable: false); // TODO(lrn): Return an empty iterator directly if iterators is empty? - return new _IteratorZip(iterators); + return _IteratorZip(iterators); } } @@ -41,7 +41,7 @@ class _IteratorZip implements Iterator> { return false; } } - _current = new List(_iterators.length); + _current = List(_iterators.length); for (int i = 0; i < _iterators.length; i++) { _current[i] = _iterators[i].current; } diff --git a/pkgs/collection/lib/src/priority_queue.dart b/pkgs/collection/lib/src/priority_queue.dart index 89c3128e..ec2478b2 100644 --- a/pkgs/collection/lib/src/priority_queue.dart +++ b/pkgs/collection/lib/src/priority_queue.dart @@ -128,7 +128,7 @@ class HeapPriorityQueue implements PriorityQueue { final Comparator comparison; /// List implementation of a heap. - List _queue = new List(_INITIAL_CAPACITY); + List _queue = List(_INITIAL_CAPACITY); /// Number of elements in queue. /// @@ -167,7 +167,7 @@ class HeapPriorityQueue implements PriorityQueue { } E get first { - if (_length == 0) throw new StateError("No such element"); + if (_length == 0) throw StateError("No such element"); return _queue[0]; } @@ -201,7 +201,7 @@ class HeapPriorityQueue implements PriorityQueue { } E removeFirst() { - if (_length == 0) throw new StateError("No such element"); + if (_length == 0) throw StateError("No such element"); E result = _queue[0]; E last = _removeLast(); if (_length > 0) { @@ -211,14 +211,14 @@ class HeapPriorityQueue implements PriorityQueue { } List toList() { - List list = new List()..length = _length; + List list = List()..length = _length; list.setRange(0, _length, _queue); list.sort(comparison); return list; } Set toSet() { - Set set = new SplayTreeSet(comparison); + Set set = SplayTreeSet(comparison); for (int i = 0; i < _length; i++) { set.add(_queue[i]); } @@ -353,7 +353,7 @@ class HeapPriorityQueue implements PriorityQueue { void _grow() { int newCapacity = _queue.length * 2 + 1; if (newCapacity < _INITIAL_CAPACITY) newCapacity = _INITIAL_CAPACITY; - List newQueue = new List(newCapacity); + List newQueue = List(newCapacity); newQueue.setRange(0, _length, _queue); _queue = newQueue; } diff --git a/pkgs/collection/lib/src/queue_list.dart b/pkgs/collection/lib/src/queue_list.dart index 8b706bf8..7bf307b3 100644 --- a/pkgs/collection/lib/src/queue_list.dart +++ b/pkgs/collection/lib/src/queue_list.dart @@ -22,7 +22,7 @@ class QueueList extends Object with ListMixin implements Queue { /// all elements stored in the returned are actually instance of [S], /// then the returned instance can be used as a `QueueList`. static QueueList _castFrom(QueueList source) { - return new _CastQueueList(source); + return _CastQueueList(source); } static const int _INITIAL_CAPACITY = 8; @@ -43,7 +43,7 @@ class QueueList extends Object with ListMixin implements Queue { initialCapacity = _nextPowerOf2(initialCapacity); } assert(_isPowerOf2(initialCapacity)); - _table = new List(initialCapacity); + _table = List(initialCapacity); } // An internal constructor for use by _CastQueueList. @@ -53,14 +53,14 @@ class QueueList extends Object with ListMixin implements Queue { factory QueueList.from(Iterable source) { if (source is List) { int length = source.length; - QueueList queue = new QueueList(length + 1); + QueueList queue = QueueList(length + 1); assert(queue._table.length > length); var sourceList = source; queue._table.setRange(0, length, sourceList, 0); queue._tail = length; return queue; } else { - return new QueueList()..addAll(source); + return QueueList()..addAll(source); } } @@ -118,7 +118,7 @@ class QueueList extends Object with ListMixin implements Queue { } E removeFirst() { - if (_head == _tail) throw new StateError("No element"); + if (_head == _tail) throw StateError("No element"); E result = _table[_head]; _table[_head] = null; _head = (_head + 1) & (_table.length - 1); @@ -126,7 +126,7 @@ class QueueList extends Object with ListMixin implements Queue { } E removeLast() { - if (_head == _tail) throw new StateError("No element"); + if (_head == _tail) throw StateError("No element"); _tail = (_tail - 1) & (_table.length - 1); E result = _table[_tail]; _table[_tail] = null; @@ -138,7 +138,7 @@ class QueueList extends Object with ListMixin implements Queue { int get length => (_tail - _head) & (_table.length - 1); set length(int value) { - if (value < 0) throw new RangeError("Length $value may not be negative."); + if (value < 0) throw RangeError("Length $value may not be negative."); int delta = value - length; if (delta >= 0) { @@ -162,7 +162,7 @@ class QueueList extends Object with ListMixin implements Queue { E operator [](int index) { if (index < 0 || index >= length) { - throw new RangeError("Index $index must be in the range [0..$length)."); + throw RangeError("Index $index must be in the range [0..$length)."); } return _table[(_head + index) & (_table.length - 1)]; @@ -170,7 +170,7 @@ class QueueList extends Object with ListMixin implements Queue { void operator []=(int index, E value) { if (index < 0 || index >= length) { - throw new RangeError("Index $index must be in the range [0..$length)."); + throw RangeError("Index $index must be in the range [0..$length)."); } _table[(_head + index) & (_table.length - 1)] = value; @@ -207,7 +207,7 @@ class QueueList extends Object with ListMixin implements Queue { /// Grow the table when full. void _grow() { - List newTable = new List(_table.length * 2); + List newTable = List(_table.length * 2); int split = _table.length - _head; newTable.setRange(0, split, _table, _head); newTable.setRange(split, split + _head, _table, 0); @@ -238,7 +238,7 @@ class QueueList extends Object with ListMixin implements Queue { // expansion. newElementCount += newElementCount >> 1; int newCapacity = _nextPowerOf2(newElementCount); - List newTable = new List(newCapacity); + List newTable = List(newCapacity); _tail = _writeToList(newTable); _table = newTable; _head = 0; diff --git a/pkgs/collection/lib/src/union_set.dart b/pkgs/collection/lib/src/union_set.dart index 5d88b6bc..35ec4101 100644 --- a/pkgs/collection/lib/src/union_set.dart +++ b/pkgs/collection/lib/src/union_set.dart @@ -29,7 +29,7 @@ class UnionSet extends SetBase with UnmodifiableSetMixin { /// is, that they contain no elements in common. This makes many operations /// including [length] more efficient. If the component sets turn out not to /// be disjoint, some operations may behave inconsistently. - UnionSet(this._sets, {bool disjoint: false}) : _disjoint = disjoint; + UnionSet(this._sets, {bool disjoint = false}) : _disjoint = disjoint; /// Creates a new set that's a view of the union of all sets in [sets]. /// @@ -41,7 +41,7 @@ class UnionSet extends SetBase with UnmodifiableSetMixin { /// is, that they contain no elements in common. This makes many operations /// including [length] more efficient. If the component sets turn out not to /// be disjoint, some operations may behave inconsistently. - UnionSet.from(Iterable> sets, {bool disjoint: false}) + UnionSet.from(Iterable> sets, {bool disjoint = false}) : this(sets.toSet(), disjoint: disjoint); int get length => _disjoint @@ -60,7 +60,7 @@ class UnionSet extends SetBase with UnmodifiableSetMixin { /// If the sets aren't guaranteed to be disjoint, this keeps track of the /// elements we've already emitted so that we can de-duplicate them. Iterable get _dedupIterable { - var seen = new Set(); + var seen = Set(); return _sets.expand((set) => set).where((element) { if (seen.contains(element)) return false; seen.add(element); @@ -79,7 +79,7 @@ class UnionSet extends SetBase with UnmodifiableSetMixin { } Set toSet() { - var result = new Set(); + var result = Set(); for (var set in _sets) { result.addAll(set); } diff --git a/pkgs/collection/lib/src/union_set_controller.dart b/pkgs/collection/lib/src/union_set_controller.dart index 1d0eb743..8253f708 100644 --- a/pkgs/collection/lib/src/union_set_controller.dart +++ b/pkgs/collection/lib/src/union_set_controller.dart @@ -27,15 +27,15 @@ class UnionSetController { UnionSet _set; /// The sets whose union is exposed through [set]. - final _sets = new Set>(); + final _sets = Set>(); /// Creates a set of sets that provides a view of the union of those sets. /// /// If [disjoint] is `true`, this assumes that all component sets are /// disjoint—that is, that they contain no elements in common. This makes /// many operations including [length] more efficient. - UnionSetController({bool disjoint: false}) { - _set = new UnionSet(_sets, disjoint: disjoint); + UnionSetController({bool disjoint = false}) { + _set = UnionSet(_sets, disjoint: disjoint); } /// Adds the contents of [component] to [set]. diff --git a/pkgs/collection/lib/src/unmodifiable_wrappers.dart b/pkgs/collection/lib/src/unmodifiable_wrappers.dart index b0b54408..0e5c28c1 100644 --- a/pkgs/collection/lib/src/unmodifiable_wrappers.dart +++ b/pkgs/collection/lib/src/unmodifiable_wrappers.dart @@ -27,8 +27,7 @@ class NonGrowableListView extends DelegatingList /// change the List's length. abstract class NonGrowableListMixin implements List { static T _throw() { - throw new UnsupportedError( - "Cannot change the length of a fixed-length list"); + throw UnsupportedError("Cannot change the length of a fixed-length list"); } /// Throws an [UnsupportedError]; @@ -106,7 +105,7 @@ class UnmodifiableSetView extends DelegatingSet /// change the Set. abstract class UnmodifiableSetMixin implements Set { static T _throw() { - throw new UnsupportedError("Cannot modify an unmodifiable Set"); + throw UnsupportedError("Cannot modify an unmodifiable Set"); } /// Throws an [UnsupportedError]; @@ -146,7 +145,7 @@ abstract class UnmodifiableSetMixin implements Set { /// change the Map. abstract class UnmodifiableMapMixin implements Map { static T _throw() { - throw new UnsupportedError("Cannot modify an unmodifiable Map"); + throw UnsupportedError("Cannot modify an unmodifiable Map"); } /// Throws an [UnsupportedError]; diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index f7fe5783..236a2c97 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -7,7 +7,7 @@ import "dart:math" as math; import "unmodifiable_wrappers.dart"; -typedef K _KeyForValue(V value); +typedef _KeyForValue = K Function(V value); /// A base class for delegating iterables. /// @@ -78,7 +78,7 @@ abstract class _DelegatingIterableBase implements Iterable { Iterable takeWhile(bool test(E value)) => _base.takeWhile(test); - List toList({bool growable: true}) => _base.toList(growable: growable); + List toList({bool growable = true}) => _base.toList(growable: growable); Set toSet() => _base.toSet(); @@ -166,7 +166,7 @@ class DelegatingList extends DelegatingIterable implements List { } set first(E value) { - if (this.isEmpty) throw new RangeError.index(0, this); + if (this.isEmpty) throw RangeError.index(0, this); this[0] = value; } @@ -186,7 +186,7 @@ class DelegatingList extends DelegatingIterable implements List { } set last(E value) { - if (this.isEmpty) throw new RangeError.index(0, this); + if (this.isEmpty) throw RangeError.index(0, this); this[this.length - 1] = value; } @@ -312,7 +312,7 @@ class DelegatingSet extends DelegatingIterable implements Set { Set union(Set other) => _setBase.union(other); - Set toSet() => new DelegatingSet(_setBase.toSet()); + Set toSet() => DelegatingSet(_setBase.toSet()); } /// A [Queue] that delegates all operations to a base queue. @@ -521,7 +521,7 @@ class MapKeySet extends _DelegatingIterableBase /// Throws an [UnsupportedError] since there's no corresponding method for /// [Map]s. E lookup(Object element) => - throw new UnsupportedError("MapKeySet doesn't support lookup()."); + throw UnsupportedError("MapKeySet doesn't support lookup()."); @deprecated Set retype() => Set.castFrom(this); @@ -656,7 +656,7 @@ class MapValueSet extends _DelegatingIterableBase implements Set { } void retainAll(Iterable elements) { - var valuesToRetain = new Set.identity(); + var valuesToRetain = Set.identity(); for (var element in elements) { if (element != null && element is! V) continue; var key = _keyForValue(element as V); diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 983f3f42..926b5c40 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -10,4 +10,5 @@ environment: sdk: '>=2.0.0 <3.0.0' dev_dependencies: + pedantic: ^1.0.0 test: ^1.0.0 diff --git a/pkgs/collection/test/algorithms_test.dart b/pkgs/collection/test/algorithms_test.dart index c7f5af1e..0ae0916a 100644 --- a/pkgs/collection/test/algorithms_test.dart +++ b/pkgs/collection/test/algorithms_test.dart @@ -12,7 +12,7 @@ void main() { void testShuffle(List list) { List copy = list.toList(); shuffle(list); - expect(new UnorderedIterableEquality().equals(list, copy), isTrue); + expect(UnorderedIterableEquality().equals(list, copy), isTrue); } test("Shuffle 0", () { @@ -79,25 +79,25 @@ void main() { }); test("binsearchCompare0", () { - expect(binarySearch([], new C(2), compare: compareC), equals(-1)); + expect(binarySearch([], C(2), compare: compareC), equals(-1)); }); test("binsearchCompare1", () { - var l1 = [new C(5)]; - expect(binarySearch(l1, new C(2), compare: compareC), equals(-1)); - expect(binarySearch(l1, new C(5), compare: compareC), equals(0)); - expect(binarySearch(l1, new C(7), compare: compareC), equals(-1)); + var l1 = [C(5)]; + expect(binarySearch(l1, C(2), compare: compareC), equals(-1)); + expect(binarySearch(l1, C(5), compare: compareC), equals(0)); + expect(binarySearch(l1, C(7), compare: compareC), equals(-1)); }); test("binsearchCompare3", () { - var l3 = [new C(0), new C(5), new C(10)]; - expect(binarySearch(l3, new C(-1), compare: compareC), equals(-1)); - expect(binarySearch(l3, new C(0), compare: compareC), equals(0)); - expect(binarySearch(l3, new C(2), compare: compareC), equals(-1)); - expect(binarySearch(l3, new C(5), compare: compareC), equals(1)); - expect(binarySearch(l3, new C(7), compare: compareC), equals(-1)); - expect(binarySearch(l3, new C(10), compare: compareC), equals(2)); - expect(binarySearch(l3, new C(12), compare: compareC), equals(-1)); + var l3 = [C(0), C(5), C(10)]; + expect(binarySearch(l3, C(-1), compare: compareC), equals(-1)); + expect(binarySearch(l3, C(0), compare: compareC), equals(0)); + expect(binarySearch(l3, C(2), compare: compareC), equals(-1)); + expect(binarySearch(l3, C(5), compare: compareC), equals(1)); + expect(binarySearch(l3, C(7), compare: compareC), equals(-1)); + expect(binarySearch(l3, C(10), compare: compareC), equals(2)); + expect(binarySearch(l3, C(12), compare: compareC), equals(-1)); }); test("lowerbound0", () { @@ -126,38 +126,38 @@ void main() { }); test("lowerboundCompare0", () { - expect(lowerBound([], new C(2), compare: compareC), equals(0)); + expect(lowerBound([], C(2), compare: compareC), equals(0)); }); test("lowerboundCompare1", () { - var l1 = [new C(5)]; - expect(lowerBound(l1, new C(2), compare: compareC), equals(0)); - expect(lowerBound(l1, new C(5), compare: compareC), equals(0)); - expect(lowerBound(l1, new C(7), compare: compareC), equals(1)); + var l1 = [C(5)]; + expect(lowerBound(l1, C(2), compare: compareC), equals(0)); + expect(lowerBound(l1, C(5), compare: compareC), equals(0)); + expect(lowerBound(l1, C(7), compare: compareC), equals(1)); }); test("lowerboundCompare3", () { - var l3 = [new C(0), new C(5), new C(10)]; - expect(lowerBound(l3, new C(-1), compare: compareC), equals(0)); - expect(lowerBound(l3, new C(0), compare: compareC), equals(0)); - expect(lowerBound(l3, new C(2), compare: compareC), equals(1)); - expect(lowerBound(l3, new C(5), compare: compareC), equals(1)); - expect(lowerBound(l3, new C(7), compare: compareC), equals(2)); - expect(lowerBound(l3, new C(10), compare: compareC), equals(2)); - expect(lowerBound(l3, new C(12), compare: compareC), equals(3)); + var l3 = [C(0), C(5), C(10)]; + expect(lowerBound(l3, C(-1), compare: compareC), equals(0)); + expect(lowerBound(l3, C(0), compare: compareC), equals(0)); + expect(lowerBound(l3, C(2), compare: compareC), equals(1)); + expect(lowerBound(l3, C(5), compare: compareC), equals(1)); + expect(lowerBound(l3, C(7), compare: compareC), equals(2)); + expect(lowerBound(l3, C(10), compare: compareC), equals(2)); + expect(lowerBound(l3, C(12), compare: compareC), equals(3)); }); test("lowerboundCompareRepeat", () { - var l1 = [new C(5), new C(5), new C(5)]; - var l2 = [new C(0), new C(5), new C(5), new C(5), new C(10)]; - expect(lowerBound(l1, new C(5), compare: compareC), equals(0)); - expect(lowerBound(l2, new C(5), compare: compareC), equals(1)); + var l1 = [C(5), C(5), C(5)]; + var l2 = [C(0), C(5), C(5), C(5), C(10)]; + expect(lowerBound(l1, C(5), compare: compareC), equals(0)); + expect(lowerBound(l2, C(5), compare: compareC), equals(1)); }); test("insertionSortRandom", () { - Random random = new Random(); + Random random = Random(); for (int i = 0; i < 25; i++) { - List list = new List(i); + List list = List(i); for (int j = 0; j < i; j++) { list[j] = random.nextInt(25); // Expect some equal elements. } @@ -193,9 +193,9 @@ void main() { }); test("MergeSortRandom", () { - Random random = new Random(); + Random random = Random(); for (int i = 0; i < 250; i += 1) { - List list = new List(i); + List list = List(i); for (int j = 0; j < i; j++) { list[j] = random.nextInt(i); // Expect some equal elements. } @@ -207,18 +207,18 @@ void main() { }); test("MergeSortPreservesOrder", () { - Random random = new Random(); + Random random = Random(); // Small case where only insertion call is called, // larger case where the internal moving insertion sort is used // larger cases with multiple splittings, numbers just around a power of 2. for (int size in [8, 50, 511, 512, 513]) { - var list = new List(size); + var list = List(size); // Class OC compares using id. // With size elements with id's in the range 0..size/4, a number of // collisions are guaranteed. These should be sorted so that the "order" // part of the objects are still in order. for (int i = 0; i < size; i++) { - list[i] = new OC(random.nextInt(size >> 2), i); + list[i] = OC(random.nextInt(size >> 2), i); } mergeSort(list); OC prev = list[0]; @@ -255,18 +255,18 @@ void main() { test("MergeSortSpecialCases", () { for (int size in [511, 512, 513]) { // All equal. - List list = new List(size); + List list = List(size); for (int i = 0; i < size; i++) { - list[i] = new OC(0, i); + list[i] = OC(0, i); } mergeSort(list); for (int i = 0; i < size; i++) { expect(list[i].order, equals(i)); } // All but one equal, first. - list[0] = new OC(1, 0); + list[0] = OC(1, 0); for (int i = 1; i < size; i++) { - list[i] = new OC(0, i); + list[i] = OC(0, i); } mergeSort(list); for (int i = 0; i < size - 1; i++) { @@ -276,9 +276,9 @@ void main() { // All but one equal, last. for (int i = 0; i < size - 1; i++) { - list[i] = new OC(0, i); + list[i] = OC(0, i); } - list[size - 1] = new OC(-1, size - 1); + list[size - 1] = OC(-1, size - 1); mergeSort(list); expect(list[0].order, equals(size - 1)); for (int i = 1; i < size; i++) { @@ -287,7 +287,7 @@ void main() { // Reversed. for (int i = 0; i < size; i++) { - list[i] = new OC(size - 1 - i, i); + list[i] = OC(size - 1 - i, i); } mergeSort(list); for (int i = 0; i < size; i++) { diff --git a/pkgs/collection/test/canonicalized_map_test.dart b/pkgs/collection/test/canonicalized_map_test.dart index 078e57c0..4ec00546 100644 --- a/pkgs/collection/test/canonicalized_map_test.dart +++ b/pkgs/collection/test/canonicalized_map_test.dart @@ -10,8 +10,8 @@ void main() { CanonicalizedMap map; setUp(() { - map = new CanonicalizedMap(int.parse, - isValidKey: (s) => new RegExp(r"^\d+$").hasMatch(s as String)); + map = CanonicalizedMap(int.parse, + isValidKey: (s) => RegExp(r"^\d+$").hasMatch(s as String)); }); test("canonicalizes keys on set and get", () { @@ -62,7 +62,7 @@ void main() { test("canonicalizes keys for putIfAbsent", () { map["1"] = "value"; - expect(map.putIfAbsent("01", () => throw new Exception("shouldn't run")), + expect(map.putIfAbsent("01", () => throw Exception("shouldn't run")), equals("value")); expect(map.putIfAbsent("2", () => "new value"), equals("new value")); }); @@ -148,9 +148,9 @@ void main() { test("addEntries adds key-value pairs to the map", () { map.addEntries([ - new MapEntry("1", "value 1"), - new MapEntry("01", "value 01"), - new MapEntry("2", "value 2"), + MapEntry("1", "value 1"), + MapEntry("01", "value 01"), + MapEntry("2", "value 2"), ]); expect(map, {"01": "value 01", "2": "value 2"}); }); @@ -163,8 +163,8 @@ void main() { group("CanonicalizedMap builds an informative string representation", () { var map; setUp(() { - map = new CanonicalizedMap(int.parse, - isValidKey: (s) => new RegExp(r"^\d+$").hasMatch(s as String)); + map = CanonicalizedMap(int.parse, + isValidKey: (s) => RegExp(r"^\d+$").hasMatch(s as String)); }); test("for an empty map", () { @@ -191,7 +191,7 @@ void main() { group("CanonicalizedMap.from", () { test("canonicalizes its keys", () { - var map = new CanonicalizedMap.from( + var map = CanonicalizedMap.from( {"1": "value 1", "2": "value 2", "3": "value 3"}, int.parse); expect(map["01"], equals("value 1")); expect(map["02"], equals("value 2")); @@ -199,7 +199,7 @@ void main() { }); test("uses the final value for collisions", () { - var map = new CanonicalizedMap.from( + var map = CanonicalizedMap.from( {"1": "value 1", "01": "value 2", "001": "value 3"}, int.parse); expect(map.length, equals(1)); expect(map["0001"], equals("value 3")); diff --git a/pkgs/collection/test/combined_wrapper/iterable_test.dart b/pkgs/collection/test/combined_wrapper/iterable_test.dart index 33018212..9fb9e390 100644 --- a/pkgs/collection/test/combined_wrapper/iterable_test.dart +++ b/pkgs/collection/test/combined_wrapper/iterable_test.dart @@ -6,35 +6,35 @@ import 'package:collection/collection.dart'; import 'package:test/test.dart'; void main() { - var iterable1 = new Iterable.generate(3); - var iterable2 = new Iterable.generate(3, (i) => i + 3); - var iterable3 = new Iterable.generate(3, (i) => i + 6); + var iterable1 = Iterable.generate(3); + var iterable2 = Iterable.generate(3, (i) => i + 3); + var iterable3 = Iterable.generate(3, (i) => i + 6); test('should combine multiple iterables when iterating', () { - var combined = new CombinedIterableView([iterable1, iterable2, iterable3]); + var combined = CombinedIterableView([iterable1, iterable2, iterable3]); expect(combined, [0, 1, 2, 3, 4, 5, 6, 7, 8]); }); test('should combine multiple iterables with some empty ones', () { var combined = - new CombinedIterableView([iterable1, [], iterable2, [], iterable3, []]); + CombinedIterableView([iterable1, [], iterable2, [], iterable3, []]); expect(combined, [0, 1, 2, 3, 4, 5, 6, 7, 8]); }); test('should function as an empty iterable when no iterables are passed', () { - var empty = new CombinedIterableView([]); + var empty = CombinedIterableView([]); expect(empty, isEmpty); }); test('should function as an empty iterable with all empty iterables', () { - var empty = new CombinedIterableView([[], [], []]); + var empty = CombinedIterableView([[], [], []]); expect(empty, isEmpty); }); test('should reflect changes from the underlying iterables', () { var list1 = []; var list2 = []; - var combined = new CombinedIterableView([list1, list2]); + var combined = CombinedIterableView([list1, list2]); expect(combined, isEmpty); list1.addAll([1, 2]); list2.addAll([3, 4]); @@ -45,7 +45,7 @@ void main() { test('should reflect changes from the iterable of iterables', () { var iterables = []; - var combined = new CombinedIterableView(iterables); + var combined = CombinedIterableView(iterables); expect(combined, isEmpty); expect(combined, hasLength(0)); diff --git a/pkgs/collection/test/combined_wrapper/list_test.dart b/pkgs/collection/test/combined_wrapper/list_test.dart index 9e909255..5bb0cb1b 100644 --- a/pkgs/collection/test/combined_wrapper/list_test.dart +++ b/pkgs/collection/test/combined_wrapper/list_test.dart @@ -15,20 +15,20 @@ void main() { // In every way possible this should test the same as an UnmodifiableListView. common.testUnmodifiableList( - concat, new CombinedListView([list1, list2, list3]), 'combineLists'); + concat, CombinedListView([list1, list2, list3]), 'combineLists'); common.testUnmodifiableList(concat, - new CombinedListView([list1, [], list2, [], list3, []]), 'combineLists'); + CombinedListView([list1, [], list2, [], list3, []]), 'combineLists'); test('should function as an empty list when no lists are passed', () { - var empty = new CombinedListView([]); + var empty = CombinedListView([]); expect(empty, isEmpty); expect(empty.length, 0); expect(() => empty[0], throwsRangeError); }); test('should function as an empty list when only empty lists are passed', () { - var empty = new CombinedListView([[], [], []]); + var empty = CombinedListView([[], [], []]); expect(empty, isEmpty); expect(empty.length, 0); expect(() => empty[0], throwsRangeError); @@ -37,7 +37,7 @@ void main() { test('should reflect underlying changes back to the combined list', () { var backing1 = []; var backing2 = []; - var combined = new CombinedListView([backing1, backing2]); + var combined = CombinedListView([backing1, backing2]); expect(combined, isEmpty); backing1.addAll(list1); expect(combined, list1); @@ -47,7 +47,7 @@ void main() { test('should reflect underlying changes from the list of lists', () { var listOfLists = >[]; - var combined = new CombinedListView(listOfLists); + var combined = CombinedListView(listOfLists); expect(combined, isEmpty); listOfLists.add(list1); expect(combined, list1); @@ -59,7 +59,7 @@ void main() { test('should reflect underlying changes with a single list', () { var backing1 = []; - var combined = new CombinedListView([backing1]); + var combined = CombinedListView([backing1]); expect(combined, isEmpty); backing1.addAll(list1); expect(combined, list1); diff --git a/pkgs/collection/test/combined_wrapper/map_test.dart b/pkgs/collection/test/combined_wrapper/map_test.dart index ecafb4b9..605c0be2 100644 --- a/pkgs/collection/test/combined_wrapper/map_test.dart +++ b/pkgs/collection/test/combined_wrapper/map_test.dart @@ -15,21 +15,19 @@ void main() { // In every way possible this should test the same as an UnmodifiableMapView. common.testReadMap( - concat, new CombinedMapView([map1, map2, map3]), 'CombinedMapView'); + concat, CombinedMapView([map1, map2, map3]), 'CombinedMapView'); - common.testReadMap( - concat, - new CombinedMapView([map1, {}, map2, {}, map3, {}]), + common.testReadMap(concat, CombinedMapView([map1, {}, map2, {}, map3, {}]), 'CombinedMapView (some empty)'); test('should function as an empty map when no maps are passed', () { - var empty = new CombinedMapView([]); + var empty = CombinedMapView([]); expect(empty, isEmpty); expect(empty.length, 0); }); test('should function as an empty map when only empty maps are passed', () { - var empty = new CombinedMapView([{}, {}, {}]); + var empty = CombinedMapView([{}, {}, {}]); expect(empty, isEmpty); expect(empty.length, 0); }); @@ -37,17 +35,17 @@ void main() { test('should reflect underlying changes back to the combined map', () { var backing1 = {}; var backing2 = {}; - var combined = new CombinedMapView([backing1, backing2]); + var combined = CombinedMapView([backing1, backing2]); expect(combined, isEmpty); backing1.addAll(map1); expect(combined, map1); backing2.addAll(map2); - expect(combined, new Map.from(backing1)..addAll(backing2)); + expect(combined, Map.from(backing1)..addAll(backing2)); }); test('should reflect underlying changes with a single map', () { var backing1 = {}; - var combined = new CombinedMapView([backing1]); + var combined = CombinedMapView([backing1]); expect(combined, isEmpty); backing1.addAll(map1); expect(combined, map1); diff --git a/pkgs/collection/test/comparators_test.dart b/pkgs/collection/test/comparators_test.dart index 3df0812b..6a5cce83 100644 --- a/pkgs/collection/test/comparators_test.dart +++ b/pkgs/collection/test/comparators_test.dart @@ -85,11 +85,9 @@ void main() { // This will sort alphabetically (by charcode) the way digits sort // numerically, and the leading 0 means it sorts like a digit // compared to non-digits. - replaceNumbers(String string) => - string.replaceAllMapped(new RegExp(r"\d+"), (m) { + replaceNumbers(String string) => string.replaceAllMapped(RegExp(r"\d+"), (m) { var digits = m[0]; - return new String.fromCharCodes( - [0x30, int.parse(digits), digits.length]); + return String.fromCharCodes([0x30, int.parse(digits), digits.length]); }); test("compareNatural", () { diff --git a/pkgs/collection/test/equality_map_test.dart b/pkgs/collection/test/equality_map_test.dart index 8225efd7..64344fe4 100644 --- a/pkgs/collection/test/equality_map_test.dart +++ b/pkgs/collection/test/equality_map_test.dart @@ -7,7 +7,7 @@ import 'package:test/test.dart'; void main() { test("uses the given equality", () { - var map = new EqualityMap(const IterableEquality()); + var map = EqualityMap(const IterableEquality()); expect(map, isEmpty); map[[1, 2, 3]] = 1; @@ -22,7 +22,7 @@ void main() { }); test("EqualityMap.from() prefers the lattermost equivalent key", () { - var map = new EqualityMap.from(const IterableEquality(), { + var map = EqualityMap.from(const IterableEquality(), { [1, 2, 3]: 1, [2, 3, 4]: 2, [1, 2, 3]: 3, diff --git a/pkgs/collection/test/equality_set_test.dart b/pkgs/collection/test/equality_set_test.dart index a326b31a..a99fe1f1 100644 --- a/pkgs/collection/test/equality_set_test.dart +++ b/pkgs/collection/test/equality_set_test.dart @@ -7,7 +7,7 @@ import 'package:test/test.dart'; void main() { test("uses the given equality", () { - var set = new EqualitySet(const IterableEquality()); + var set = EqualitySet(const IterableEquality()); expect(set, isEmpty); var list1 = [1, 2, 3]; @@ -35,7 +35,7 @@ void main() { var list5 = [1, 2, 3]; var list6 = [1, 2, 3]; - var set = new EqualitySet.from( + var set = EqualitySet.from( const IterableEquality(), [list1, list2, list3, list4, list5, list6]); expect(set, contains(same(list1))); diff --git a/pkgs/collection/test/equality_test.dart b/pkgs/collection/test/equality_test.dart index ffc86551..2b3a229c 100644 --- a/pkgs/collection/test/equality_test.dart +++ b/pkgs/collection/test/equality_test.dart @@ -9,7 +9,7 @@ import "package:collection/collection.dart"; import "package:test/test.dart"; main() { - o(Comparable id) => new Element(id); + o(Comparable id) => Element(id); // Lists that are point-wise equal, but not identical. var list1 = [o(1), o(2), o(3), o(4), o(5)]; @@ -19,42 +19,41 @@ main() { test("IterableEquality - List", () { expect(const IterableEquality().equals(list1, list2), isTrue); - Equality iterId = const IterableEquality(const IdentityEquality()); + Equality iterId = const IterableEquality(IdentityEquality()); expect(iterId.equals(list1, list2), isFalse); }); test("IterableEquality - LinkedSet", () { - var l1 = new LinkedHashSet.from(list1); - var l2 = new LinkedHashSet.from(list2); + var l1 = LinkedHashSet.from(list1); + var l2 = LinkedHashSet.from(list2); expect(const IterableEquality().equals(l1, l2), isTrue); - Equality iterId = const IterableEquality(const IdentityEquality()); + Equality iterId = const IterableEquality(IdentityEquality()); expect(iterId.equals(l1, l2), isFalse); }); test("ListEquality", () { expect(const ListEquality().equals(list1, list2), isTrue); - Equality listId = const ListEquality(const IdentityEquality()); + Equality listId = const ListEquality(IdentityEquality()); expect(listId.equals(list1, list2), isFalse); }); test("ListInequality length", () { var list4 = [o(1), o(2), o(3), o(4), o(5), o(6)]; expect(const ListEquality().equals(list1, list4), isFalse); - expect(const ListEquality(const IdentityEquality()).equals(list1, list4), - isFalse); + expect( + const ListEquality(IdentityEquality()).equals(list1, list4), isFalse); }); test("ListInequality value", () { var list5 = [o(1), o(2), o(3), o(4), o(6)]; expect(const ListEquality().equals(list1, list5), isFalse); - expect(const ListEquality(const IdentityEquality()).equals(list1, list5), - isFalse); + expect( + const ListEquality(IdentityEquality()).equals(list1, list5), isFalse); }); test("UnorderedIterableEquality", () { expect(const UnorderedIterableEquality().equals(list1, list3), isTrue); - Equality uniterId = - const UnorderedIterableEquality(const IdentityEquality()); + Equality uniterId = const UnorderedIterableEquality(IdentityEquality()); expect(uniterId.equals(list1, list3), isFalse); }); @@ -62,7 +61,7 @@ main() { var list6 = [o(1), o(3), o(5), o(4), o(2), o(1)]; expect(const UnorderedIterableEquality().equals(list1, list6), isFalse); expect( - const UnorderedIterableEquality(const IdentityEquality()) + const UnorderedIterableEquality(IdentityEquality()) .equals(list1, list6), isFalse); }); @@ -71,35 +70,33 @@ main() { var list7 = [o(1), o(3), o(5), o(4), o(6)]; expect(const UnorderedIterableEquality().equals(list1, list7), isFalse); expect( - const UnorderedIterableEquality(const IdentityEquality()) + const UnorderedIterableEquality(IdentityEquality()) .equals(list1, list7), isFalse); }); test("SetEquality", () { - var set1 = new HashSet.from(list1); - var set2 = new LinkedHashSet.from(list3); + var set1 = HashSet.from(list1); + var set2 = LinkedHashSet.from(list3); expect(const SetEquality().equals(set1, set2), isTrue); - Equality setId = const SetEquality(const IdentityEquality()); + Equality setId = const SetEquality(IdentityEquality()); expect(setId.equals(set1, set2), isFalse); }); test("SetInequality length", () { var list8 = [o(1), o(3), o(5), o(4), o(2), o(6)]; - var set1 = new HashSet.from(list1); - var set2 = new LinkedHashSet.from(list8); + var set1 = HashSet.from(list1); + var set2 = LinkedHashSet.from(list8); expect(const SetEquality().equals(set1, set2), isFalse); - expect(const SetEquality(const IdentityEquality()).equals(set1, set2), - isFalse); + expect(const SetEquality(IdentityEquality()).equals(set1, set2), isFalse); }); test("SetInequality value", () { var list7 = [o(1), o(3), o(5), o(4), o(6)]; - var set1 = new HashSet.from(list1); - var set2 = new LinkedHashSet.from(list7); + var set1 = HashSet.from(list1); + var set2 = LinkedHashSet.from(list7); expect(const SetEquality().equals(set1, set2), isFalse); - expect(const SetEquality(const IdentityEquality()).equals(set1, set2), - isFalse); + expect(const SetEquality(IdentityEquality()).equals(set1, set2), isFalse); }); var map1a = { @@ -120,21 +117,21 @@ main() { }; var l1 = [map1a, map1b]; var l2 = [map2a, map2b]; - var s1 = new Set.from(l1); - var s2 = new Set.from([map2b, map2a]); + var s1 = Set.from(l1); + var s2 = Set.from([map2b, map2a]); test("RecursiveEquality", () { - const unordered = const UnorderedIterableEquality(); + const unordered = UnorderedIterableEquality(); expect(unordered.equals(map1a["x"], map2a["x"]), isTrue); expect(unordered.equals(map1a["y"], map2a["y"]), isTrue); expect(unordered.equals(map1b["x"], map2b["x"]), isTrue); expect(unordered.equals(map1b["y"], map2b["y"]), isTrue); - const mapval = const MapEquality(values: unordered); + const mapval = MapEquality(values: unordered); expect(mapval.equals(map1a, map2a), isTrue); expect(mapval.equals(map1b, map2b), isTrue); - const listmapval = const ListEquality(mapval); + const listmapval = ListEquality(mapval); expect(listmapval.equals(l1, l2), isTrue); - const setmapval = const SetEquality(mapval); + const setmapval = SetEquality(mapval); expect(setmapval.equals(s1, s2), isTrue); }); @@ -166,10 +163,10 @@ main() { }); group("EqualityBy should use a derived value for ", () { - var firstEquality = new EqualityBy, String>((e) => e.first); - var firstInsensitiveEquality = new EqualityBy, String>( + var firstEquality = EqualityBy, String>((e) => e.first); + var firstInsensitiveEquality = EqualityBy, String>( (e) => e.first, const CaseInsensitiveEquality()); - var firstObjectEquality = new EqualityBy, Object>( + var firstObjectEquality = EqualityBy, Object>( (e) => e.first, const IterableEquality()); test("equality", () { @@ -204,10 +201,10 @@ main() { }); test("Equality accepts null", () { - var ie = new IterableEquality(); - var le = new ListEquality(); - var se = new SetEquality(); - var me = new MapEquality(); + var ie = IterableEquality(); + var le = ListEquality(); + var se = SetEquality(); + var me = MapEquality(); expect(ie.equals(null, null), true); expect(ie.equals([], null), false); expect(ie.equals(null, []), false); @@ -219,8 +216,8 @@ main() { expect(le.hash(null), null.hashCode); expect(se.equals(null, null), true); - expect(se.equals(new Set(), null), false); - expect(se.equals(null, new Set()), false); + expect(se.equals(Set(), null), false); + expect(se.equals(null, Set()), false); expect(se.hash(null), null.hashCode); expect(me.equals(null, null), true); diff --git a/pkgs/collection/test/functions_test.dart b/pkgs/collection/test/functions_test.dart index a1e8f084..809d486c 100644 --- a/pkgs/collection/test/functions_test.dart +++ b/pkgs/collection/test/functions_test.dart @@ -220,7 +220,7 @@ void main() { expect( stronglyConnectedComponents({"a": []}), equals([ - new Set.from(["a"]) + Set.from(["a"]) ])); }); @@ -231,8 +231,8 @@ void main() { "b": [] }), equals([ - new Set.from(["a"]), - new Set.from(["b"]) + Set.from(["a"]), + Set.from(["b"]) ])); }); @@ -243,7 +243,7 @@ void main() { "b": ["a"] }), equals([ - new Set.from(["a", "b"]) + Set.from(["a", "b"]) ])); }); @@ -261,12 +261,12 @@ void main() { // This is expected to return *a* topological ordering, but this isn't // the only valid one. If the function implementation changes in the // future, this test may need to be updated. - new Set.from(["foo"]), - new Set.from(["bar"]), - new Set.from(["bang"]), - new Set.from(["zap"]), - new Set.from(["baz"]), - new Set.from(["qux"]) + Set.from(["foo"]), + Set.from(["bar"]), + Set.from(["bang"]), + Set.from(["zap"]), + Set.from(["baz"]), + Set.from(["qux"]) ])); }); @@ -279,7 +279,7 @@ void main() { "bang": ["foo"] }), equals([ - new Set.from(["foo", "bar", "baz", "bang"]) + Set.from(["foo", "bar", "baz", "bang"]) ])); }); @@ -300,9 +300,9 @@ void main() { // This is expected to return *a* topological ordering, but this isn't // the only valid one. If the function implementation changes in the // future, this test may need to be updated. - new Set.from(["a", "b", "e"]), - new Set.from(["c", "d", "h"]), - new Set.from(["f", "g"]), + Set.from(["a", "b", "e"]), + Set.from(["c", "d", "h"]), + Set.from(["f", "g"]), ])); }); @@ -320,12 +320,12 @@ void main() { // This is expected to return *a* topological ordering, but this isn't // the only valid one. If the function implementation changes in the // future, this test may need to be updated. - new Set.from(["foo"]), - new Set.from(["bar"]), - new Set.from(["bang"]), - new Set.from(["zap"]), - new Set.from(["baz"]), - new Set.from(["qux"]) + Set.from(["foo"]), + Set.from(["bar"]), + Set.from(["bang"]), + Set.from(["zap"]), + Set.from(["baz"]), + Set.from(["qux"]) ])); }); }); diff --git a/pkgs/collection/test/iterable_zip_test.dart b/pkgs/collection/test/iterable_zip_test.dart index 7b6db73b..75a448d3 100644 --- a/pkgs/collection/test/iterable_zip_test.dart +++ b/pkgs/collection/test/iterable_zip_test.dart @@ -17,7 +17,7 @@ Iterable iterError(Iterable base, int errorValue) { main() { test("Basic", () { expect( - new IterableZip([ + IterableZip([ [1, 2, 3], [4, 5, 6], [7, 8, 9] @@ -31,7 +31,7 @@ main() { test("Uneven length 1", () { expect( - new IterableZip([ + IterableZip([ [1, 2, 3, 99, 100], [4, 5, 6], [7, 8, 9] @@ -45,7 +45,7 @@ main() { test("Uneven length 2", () { expect( - new IterableZip([ + IterableZip([ [1, 2, 3], [4, 5, 6, 99, 100], [7, 8, 9] @@ -59,7 +59,7 @@ main() { test("Uneven length 3", () { expect( - new IterableZip([ + IterableZip([ [1, 2, 3], [4, 5, 6], [7, 8, 9, 99, 100] @@ -73,7 +73,7 @@ main() { test("Uneven length 3", () { expect( - new IterableZip([ + IterableZip([ [1, 2, 3, 98], [4, 5, 6], [7, 8, 9, 99, 100] @@ -87,7 +87,7 @@ main() { test("Empty 1", () { expect( - new IterableZip([ + IterableZip([ [], [4, 5, 6], [7, 8, 9] @@ -97,7 +97,7 @@ main() { test("Empty 2", () { expect( - new IterableZip([ + IterableZip([ [1, 2, 3], [], [7, 8, 9] @@ -107,7 +107,7 @@ main() { test("Empty 3", () { expect( - new IterableZip([ + IterableZip([ [1, 2, 3], [4, 5, 6], [] @@ -116,12 +116,12 @@ main() { }); test("Empty source", () { - expect(new IterableZip([]), equals([])); + expect(IterableZip([]), equals([])); }); test("Single Source", () { expect( - new IterableZip([ + IterableZip([ [1, 2, 3] ]), equals([ @@ -134,16 +134,15 @@ main() { test("Not-lists", () { // Use other iterables than list literals. Iterable it1 = [1, 2, 3, 4, 5, 6].where((x) => x < 4); - Set it2 = new LinkedHashSet()..add(4)..add(5)..add(6); - Iterable it3 = (new LinkedHashMap() + Set it2 = LinkedHashSet()..add(4)..add(5)..add(6); + Iterable it3 = (LinkedHashMap() ..[7] = 0 ..[8] = 0 ..[9] = 0) .keys; - Iterable allIts = - new Iterable.generate(3, (i) => [it1, it2, it3][i]); + Iterable allIts = Iterable.generate(3, (i) => [it1, it2, it3][i]); expect( - new IterableZip(allIts), + IterableZip(allIts), equals([ [1, 4, 7], [2, 5, 8], @@ -153,7 +152,7 @@ main() { test("Error 1", () { expect( - () => new IterableZip([ + () => IterableZip([ iterError([1, 2, 3], 2), [4, 5, 6], [7, 8, 9] @@ -163,7 +162,7 @@ main() { test("Error 2", () { expect( - () => new IterableZip([ + () => IterableZip([ [1, 2, 3], iterError([4, 5, 6], 5), [7, 8, 9] @@ -173,7 +172,7 @@ main() { test("Error 3", () { expect( - () => new IterableZip([ + () => IterableZip([ [1, 2, 3], [4, 5, 6], iterError([7, 8, 9], 8) @@ -183,7 +182,7 @@ main() { test("Error at end", () { expect( - () => new IterableZip([ + () => IterableZip([ [1, 2, 3], iterError([4, 5, 6], 6), [7, 8, 9] @@ -193,7 +192,7 @@ main() { test("Error before first end", () { expect( - () => new IterableZip([ + () => IterableZip([ iterError([1, 2, 3, 4], 4), [4, 5, 6], [7, 8, 9] @@ -203,7 +202,7 @@ main() { test("Error after first end", () { expect( - new IterableZip([ + IterableZip([ [1, 2, 3], [4, 5, 6], iterError([7, 8, 9, 10], 10) diff --git a/pkgs/collection/test/priority_queue_test.dart b/pkgs/collection/test/priority_queue_test.dart index 92b6d330..aefd346d 100644 --- a/pkgs/collection/test/priority_queue_test.dart +++ b/pkgs/collection/test/priority_queue_test.dart @@ -10,33 +10,32 @@ import "package:collection/src/priority_queue.dart"; void main() { testDefault(); - testInt(() => new HeapPriorityQueue()); - testCustom((comparator) => new HeapPriorityQueue(comparator)); + testInt(() => HeapPriorityQueue()); + testCustom((comparator) => HeapPriorityQueue(comparator)); } void testDefault() { test('new PriorityQueue() returns a HeapPriorityQueue', () { - expect(new PriorityQueue(), new TypeMatcher>()); + expect(PriorityQueue(), TypeMatcher>()); }); - testInt(() => new PriorityQueue()); - testCustom((comparator) => new PriorityQueue(comparator)); + testInt(() => PriorityQueue()); + testCustom((comparator) => PriorityQueue(comparator)); } void testInt(PriorityQueue create()) { for (int count in [1, 5, 127, 128]) { - testQueue( - "int:$count", create, new List.generate(count, (x) => x), count); + testQueue("int:$count", create, List.generate(count, (x) => x), count); } } void testCustom(PriorityQueue create(int comparator(C a, C b))) { for (int count in [1, 5, 127, 128]) { testQueue("Custom:$count/null", () => create(null), - new List.generate(count, (x) => new C(x)), new C(count)); + List.generate(count, (x) => C(x)), C(count)); testQueue("Custom:$count/compare", () => create(compare), - new List.generate(count, (x) => new C(x)), new C(count)); + List.generate(count, (x) => C(x)), C(count)); testQueue("Custom:$count/compareNeg", () => create(compareNeg), - new List.generate(count, (x) => new C(count - x)), new C(0)); + List.generate(count, (x) => C(count - x)), C(0)); } } diff --git a/pkgs/collection/test/queue_list_test.dart b/pkgs/collection/test/queue_list_test.dart index 543cbae4..9522a391 100644 --- a/pkgs/collection/test/queue_list_test.dart +++ b/pkgs/collection/test/queue_list_test.dart @@ -10,21 +10,21 @@ import "utils.dart"; void main() { group("new QueueList()", () { test("creates an empty QueueList", () { - expect(new QueueList(), isEmpty); + expect(QueueList(), isEmpty); }); test("takes an initial capacity", () { - expect(new QueueList(100), isEmpty); + expect(QueueList(100), isEmpty); }); }); test("new QueueList.from() copies the contents of an iterable", () { - expect(new QueueList.from([1, 2, 3].skip(1)), equals([2, 3])); + expect(QueueList.from([1, 2, 3].skip(1)), equals([2, 3])); }); group("add()", () { test("adds an element to the end of the queue", () { - var queue = new QueueList.from([1, 2, 3]); + var queue = QueueList.from([1, 2, 3]); queue.add(4); expect(queue, equals([1, 2, 3, 4])); }); @@ -38,7 +38,7 @@ void main() { group("addAll()", () { test("adds elements to the end of the queue", () { - var queue = new QueueList.from([1, 2, 3]); + var queue = QueueList.from([1, 2, 3]); queue.addAll([4, 5, 6]); expect(queue, equals([1, 2, 3, 4, 5, 6])); }); @@ -52,7 +52,7 @@ void main() { group("addFirst()", () { test("adds an element to the beginning of the queue", () { - var queue = new QueueList.from([1, 2, 3]); + var queue = QueueList.from([1, 2, 3]); queue.addFirst(0); expect(queue, equals([0, 1, 2, 3])); }); @@ -66,7 +66,7 @@ void main() { group("removeFirst()", () { test("removes an element from the beginning of the queue", () { - var queue = new QueueList.from([1, 2, 3]); + var queue = QueueList.from([1, 2, 3]); expect(queue.removeFirst(), equals(1)); expect(queue, equals([2, 3])); }); @@ -86,13 +86,13 @@ void main() { }); test("throws a StateError for an empty queue", () { - expect(new QueueList().removeFirst, throwsStateError); + expect(QueueList().removeFirst, throwsStateError); }); }); group("removeLast()", () { test("removes an element from the end of the queue", () { - var queue = new QueueList.from([1, 2, 3]); + var queue = QueueList.from([1, 2, 3]); expect(queue.removeLast(), equals(3)); expect(queue, equals([1, 2])); }); @@ -110,13 +110,13 @@ void main() { }); test("throws a StateError for an empty queue", () { - expect(new QueueList().removeLast, throwsStateError); + expect(QueueList().removeLast, throwsStateError); }); }); group("length", () { test("returns the length of a queue", () { - expect(new QueueList.from([1, 2, 3]).length, equals(3)); + expect(QueueList.from([1, 2, 3]).length, equals(3)); }); test("returns the length of a queue with an internal gap", () { @@ -130,25 +130,25 @@ void main() { group("length=", () { test("shrinks a larger queue", () { - var queue = new QueueList.from([1, 2, 3]); + var queue = QueueList.from([1, 2, 3]); queue.length = 1; expect(queue, equals([1])); }); test("grows a smaller queue", () { - var queue = new QueueList.from([1, 2, 3]); + var queue = QueueList.from([1, 2, 3]); queue.length = 5; expect(queue, equals([1, 2, 3, null, null])); }); test("throws a RangeError if length is less than 0", () { - expect(() => new QueueList().length = -1, throwsRangeError); + expect(() => QueueList().length = -1, throwsRangeError); }); }); group("[]", () { test("returns individual entries in the queue", () { - var queue = new QueueList.from([1, 2, 3]); + var queue = QueueList.from([1, 2, 3]); expect(queue[0], equals(1)); expect(queue[1], equals(2)); expect(queue[2], equals(3)); @@ -166,21 +166,21 @@ void main() { }); test("throws a RangeError if the index is less than 0", () { - var queue = new QueueList.from([1, 2, 3]); + var queue = QueueList.from([1, 2, 3]); expect(() => queue[-1], throwsRangeError); }); test( "throws a RangeError if the index is greater than or equal to the " "length", () { - var queue = new QueueList.from([1, 2, 3]); + var queue = QueueList.from([1, 2, 3]); expect(() => queue[3], throwsRangeError); }); }); group("[]=", () { test("sets individual entries in the queue", () { - var queue = new QueueList.from([1, 2, 3]); + var queue = QueueList.from([1, 2, 3]); queue[0] = "a"; queue[1] = "b"; queue[2] = "c"; @@ -200,7 +200,7 @@ void main() { }); test("throws a RangeError if the index is less than 0", () { - var queue = new QueueList.from([1, 2, 3]); + var queue = QueueList.from([1, 2, 3]); expect(() { queue[-1] = 0; }, throwsRangeError); @@ -209,7 +209,7 @@ void main() { test( "throws a RangeError if the index is greater than or equal to the " "length", () { - var queue = new QueueList.from([1, 2, 3]); + var queue = QueueList.from([1, 2, 3]); expect(() { queue[3] = 4; }, throwsRangeError); @@ -219,7 +219,7 @@ void main() { group("throws a modification error for", () { var queue; setUp(() { - queue = new QueueList.from([1, 2, 3]); + queue = QueueList.from([1, 2, 3]); }); test("add", () { @@ -254,7 +254,7 @@ void main() { }); test("cast does not throw on mutation when the type is valid", () { - var patternQueue = new QueueList()..addAll(['a', 'b']); + var patternQueue = QueueList()..addAll(['a', 'b']); var stringQueue = patternQueue.cast(); stringQueue.addAll(['c', 'd']); expect( @@ -274,7 +274,7 @@ void main() { }); test("cast throws on mutation when the type is not valid", () { - QueueList stringQueue = new QueueList(); + QueueList stringQueue = QueueList(); var numQueue = stringQueue.cast(); expect( numQueue, @@ -290,7 +290,7 @@ void main() { }); test("cast returns a new QueueList", () { - var queue = new QueueList(); + var queue = QueueList(); expect(queue.cast(), isNot(same(queue))); }); } @@ -300,12 +300,12 @@ void main() { QueueList atCapacity() { // Use addAll because [new QueueList.from(List)] won't use the default initial // capacity of 8. - return new QueueList()..addAll([1, 2, 3, 4, 5, 6, 7]); + return QueueList()..addAll([1, 2, 3, 4, 5, 6, 7]); } /// Returns a queue whose internal tail has a lower index than its head. QueueList withInternalGap() { - var queue = new QueueList.from([null, null, null, null, 1, 2, 3, 4]); + var queue = QueueList.from([null, null, null, null, 1, 2, 3, 4]); for (var i = 0; i < 4; i++) { queue.removeFirst(); } @@ -318,4 +318,4 @@ QueueList withInternalGap() { /// Returns a matcher that expects that a closure throws a /// [ConcurrentModificationError]. final throwsConcurrentModificationError = - throwsA(new TypeMatcher()); + throwsA(TypeMatcher()); diff --git a/pkgs/collection/test/union_set_controller_test.dart b/pkgs/collection/test/union_set_controller_test.dart index 8c561d35..ff8c95a7 100644 --- a/pkgs/collection/test/union_set_controller_test.dart +++ b/pkgs/collection/test/union_set_controller_test.dart @@ -10,14 +10,14 @@ void main() { UnionSetController controller; Set innerSet; setUp(() { - innerSet = new Set.from([1, 2, 3]); - controller = new UnionSetController()..add(innerSet); + innerSet = Set.from([1, 2, 3]); + controller = UnionSetController()..add(innerSet); }); test("exposes a union set", () { expect(controller.set, unorderedEquals([1, 2, 3])); - controller.add(new Set.from([3, 4, 5])); + controller.add(Set.from([3, 4, 5])); expect(controller.set, unorderedEquals([1, 2, 3, 4, 5])); controller.remove(innerSet); @@ -27,7 +27,7 @@ void main() { test("exposes a disjoint union set", () { expect(controller.set, unorderedEquals([1, 2, 3])); - controller.add(new Set.from([4, 5, 6])); + controller.add(Set.from([4, 5, 6])); expect(controller.set, unorderedEquals([1, 2, 3, 4, 5, 6])); controller.remove(innerSet); diff --git a/pkgs/collection/test/union_set_test.dart b/pkgs/collection/test/union_set_test.dart index d0437ff7..6624e5f8 100644 --- a/pkgs/collection/test/union_set_test.dart +++ b/pkgs/collection/test/union_set_test.dart @@ -10,7 +10,7 @@ void main() { group("with an empty outer set", () { var set; setUp(() { - set = new UnionSet(new Set()); + set = UnionSet(Set()); }); test("length returns 0", () { @@ -42,11 +42,11 @@ void main() { group("with multiple disjoint sets", () { var set; setUp(() { - set = new UnionSet.from([ - new Set.of([1, 2]), - new Set.of([3, 4]), - new Set.of([5]), - new Set() + set = UnionSet.from([ + Set.of([1, 2]), + Set.of([3, 4]), + Set.of([5]), + Set() ], disjoint: true); }); @@ -81,11 +81,11 @@ void main() { group("with multiple overlapping sets", () { var set; setUp(() { - set = new UnionSet.from([ - new Set.of([1, 2, 3]), - new Set.of([3, 4]), - new Set.of([5, 1]), - new Set() + set = UnionSet.from([ + Set.of([1, 2, 3]), + Set.of([3, 4]), + Set.of([5, 1]), + Set() ]); }); @@ -108,17 +108,17 @@ void main() { }); test("lookup() returns the first element in an ordered context", () { - var duration1 = new Duration(seconds: 0); - var duration2 = new Duration(seconds: 0); + var duration1 = Duration(seconds: 0); + var duration2 = Duration(seconds: 0); expect(duration1, equals(duration2)); expect(duration1, isNot(same(duration2))); - var set = new UnionSet.from([ - new Set.of([duration1]), - new Set.of([duration2]) + var set = UnionSet.from([ + Set.of([duration1]), + Set.of([duration2]) ]); - expect(set.lookup(new Duration(seconds: 0)), same(duration1)); + expect(set.lookup(Duration(seconds: 0)), same(duration1)); }); test("toSet() returns the union of all the sets", () { @@ -134,10 +134,10 @@ void main() { group("after an inner set was modified", () { var set; setUp(() { - var innerSet = new Set.of([3, 7]); - set = new UnionSet.from([ - new Set.of([1, 2]), - new Set.of([5]), + var innerSet = Set.of([3, 7]); + set = UnionSet.from([ + Set.of([1, 2]), + Set.of([5]), innerSet ]); @@ -178,16 +178,16 @@ void main() { group("after the outer set was modified", () { var set; setUp(() { - var innerSet = new Set.of([6]); - var outerSet = new Set.of([ - new Set.of([1, 2]), - new Set.of([5]), + var innerSet = Set.of([6]); + var outerSet = Set.of([ + Set.of([1, 2]), + Set.of([5]), innerSet ]); - set = new UnionSet(outerSet); + set = UnionSet(outerSet); outerSet.remove(innerSet); - outerSet.add(new Set.of([3, 4])); + outerSet.add(Set.of([3, 4])); }); test("length returns the total length", () { diff --git a/pkgs/collection/test/unmodifiable_collection_test.dart b/pkgs/collection/test/unmodifiable_collection_test.dart index c7b539f1..dcc0f3be 100644 --- a/pkgs/collection/test/unmodifiable_collection_test.dart +++ b/pkgs/collection/test/unmodifiable_collection_test.dart @@ -12,39 +12,39 @@ import "package:collection/collection.dart"; main() { var list = []; - testUnmodifiableList(list, new UnmodifiableListView(list), "empty"); + testUnmodifiableList(list, UnmodifiableListView(list), "empty"); list = [42]; - testUnmodifiableList(list, new UnmodifiableListView(list), "single-42"); + testUnmodifiableList(list, UnmodifiableListView(list), "single-42"); list = [7]; - testUnmodifiableList(list, new UnmodifiableListView(list), "single!42"); + testUnmodifiableList(list, UnmodifiableListView(list), "single!42"); list = [1, 42, 10]; - testUnmodifiableList(list, new UnmodifiableListView(list), "three-42"); + testUnmodifiableList(list, UnmodifiableListView(list), "three-42"); list = [1, 7, 10]; - testUnmodifiableList(list, new UnmodifiableListView(list), "three!42"); + testUnmodifiableList(list, UnmodifiableListView(list), "three!42"); list = []; - testNonGrowableList(list, new NonGrowableListView(list), "empty"); + testNonGrowableList(list, NonGrowableListView(list), "empty"); list = [42]; - testNonGrowableList(list, new NonGrowableListView(list), "single-42"); + testNonGrowableList(list, NonGrowableListView(list), "single-42"); list = [7]; - testNonGrowableList(list, new NonGrowableListView(list), "single!42"); + testNonGrowableList(list, NonGrowableListView(list), "single!42"); list = [1, 42, 10]; - testNonGrowableList(list, new NonGrowableListView(list), "three-42"); + testNonGrowableList(list, NonGrowableListView(list), "three-42"); list = [1, 7, 10]; - testNonGrowableList(list, new NonGrowableListView(list), "three!42"); + testNonGrowableList(list, NonGrowableListView(list), "three!42"); - var aSet = new Set(); - testUnmodifiableSet(aSet, new UnmodifiableSetView(aSet), "empty"); - aSet = new Set(); + var aSet = Set(); + testUnmodifiableSet(aSet, UnmodifiableSetView(aSet), "empty"); + aSet = Set(); testUnmodifiableSet(aSet, const UnmodifiableSetView.empty(), "const empty"); - aSet = new Set.of([42]); - testUnmodifiableSet(aSet, new UnmodifiableSetView(aSet), "single-42"); - aSet = new Set.of([7]); - testUnmodifiableSet(aSet, new UnmodifiableSetView(aSet), "single!42"); - aSet = new Set.of([1, 42, 10]); - testUnmodifiableSet(aSet, new UnmodifiableSetView(aSet), "three-42"); - aSet = new Set.of([1, 7, 10]); - testUnmodifiableSet(aSet, new UnmodifiableSetView(aSet), "three!42"); + aSet = Set.of([42]); + testUnmodifiableSet(aSet, UnmodifiableSetView(aSet), "single-42"); + aSet = Set.of([7]); + testUnmodifiableSet(aSet, UnmodifiableSetView(aSet), "single!42"); + aSet = Set.of([1, 42, 10]); + testUnmodifiableSet(aSet, UnmodifiableSetView(aSet), "three-42"); + aSet = Set.of([1, 7, 10]); + testUnmodifiableSet(aSet, UnmodifiableSetView(aSet), "three!42"); } void testUnmodifiableList(List original, List wrapped, String name) { @@ -312,7 +312,7 @@ void testReadList(List original, List wrapped, String name) { } void testNoWriteList(List original, List wrapped, String name) { - var copy = new List.of(original); + var copy = List.of(original); testThrows(name, thunk) { test(name, () { @@ -336,16 +336,16 @@ void testNoWriteList(List original, List wrapped, String name) { testThrows("$name - setRange throws", () { wrapped.setRange( - 0, wrapped.length, new Iterable.generate(wrapped.length, (i) => i)); + 0, wrapped.length, Iterable.generate(wrapped.length, (i) => i)); }); testThrows("$name - setAll throws", () { - wrapped.setAll(0, new Iterable.generate(wrapped.length, (i) => i)); + wrapped.setAll(0, Iterable.generate(wrapped.length, (i) => i)); }); } void testWriteList(List original, List wrapped, String name) { - var copy = new List.of(original); + var copy = List.of(original); test("$name - []=", () { if (original.isNotEmpty) { @@ -361,7 +361,7 @@ void testWriteList(List original, List wrapped, String name) { }); test("$name - sort", () { - List sortCopy = new List.of(original); + List sortCopy = List.of(original); sortCopy.sort(); wrapped.sort(); expect(original, orderedEquals(sortCopy)); @@ -393,7 +393,7 @@ void testWriteList(List original, List wrapped, String name) { void testNoChangeLengthList( List original, List wrapped, String name) { - var copy = new List.of(original); + var copy = List.of(original); void testThrows(String name, thunk) { test(name, () { @@ -457,7 +457,7 @@ void testNoChangeLengthList( } void testReadSet(Set original, Set wrapped, String name) { - var copy = new Set.of(original); + var copy = Set.of(original); test("$name - containsAll", () { expect(wrapped.containsAll(copy), isTrue); @@ -467,24 +467,23 @@ void testReadSet(Set original, Set wrapped, String name) { }); test("$name - intersection", () { - expect(wrapped.intersection(new Set()), isEmpty); + expect(wrapped.intersection(Set()), isEmpty); expect(wrapped.intersection(copy), unorderedEquals(original)); - expect(wrapped.intersection(new Set.of([42])), - new Set.of(original.contains(42) ? [42] : [])); + expect(wrapped.intersection(Set.of([42])), + Set.of(original.contains(42) ? [42] : [])); }); test("$name - union", () { - expect(wrapped.union(new Set()), unorderedEquals(original)); + expect(wrapped.union(Set()), unorderedEquals(original)); expect(wrapped.union(copy), unorderedEquals(original)); - expect(wrapped.union(new Set.of([42])), - equals(original.union(new Set.of([42])))); + expect(wrapped.union(Set.of([42])), equals(original.union(Set.of([42])))); }); test("$name - difference", () { - expect(wrapped.difference(new Set()), unorderedEquals(original)); + expect(wrapped.difference(Set()), unorderedEquals(original)); expect(wrapped.difference(copy), isEmpty); - expect(wrapped.difference(new Set.of([42])), - equals(original.difference(new Set.of([42])))); + expect(wrapped.difference(Set.of([42])), + equals(original.difference(Set.of([42])))); }); } @@ -590,7 +589,7 @@ void testReadMap(Map original, Map wrapped, String name) { } testNoChangeMap(Map original, Map wrapped, String name) { - var copy = new Map.of(original); + var copy = Map.of(original); testThrows(name, thunk) { test(name, () { @@ -609,11 +608,11 @@ testNoChangeMap(Map original, Map wrapped, String name) { }); testThrows("$name addAll throws", () { - wrapped.addAll(new Map()..[42] = 42); + wrapped.addAll(Map()..[42] = 42); }); testThrows("$name addAll empty throws", () { - wrapped.addAll(new Map()); + wrapped.addAll(Map()); }); testThrows("$name remove throws", () { diff --git a/pkgs/collection/test/utils.dart b/pkgs/collection/test/utils.dart index a97275eb..dbeadc76 100644 --- a/pkgs/collection/test/utils.dart +++ b/pkgs/collection/test/utils.dart @@ -4,7 +4,7 @@ import "package:test/test.dart"; -final Matcher throwsCastError = throwsA(new TypeMatcher()); +final Matcher throwsCastError = throwsA(TypeMatcher()); /// A hack to determine whether we are running in a Dart 2 runtime. final bool isDart2 = _isTypeArgString(''); diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index bb8f90f6..643c4417 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -66,7 +66,7 @@ class InvocationChecker { // don't override those and so the wrappers don't forward those. } -final toStringInvocation = new Invocation.method(#toString, const []); +final toStringInvocation = Invocation.method(#toString, const []); // InvocationCheckers with types Queue, Set, List or Iterable to allow them as // argument to DelegatingIterable/Set/List/Queue. @@ -95,38 +95,37 @@ class MapInvocationChecker extends InvocationChecker // Expector that wraps in DelegatingIterable. class IterableExpector extends Expector implements Iterable { wrappedChecker(Invocation i) => - new DelegatingIterable(new IterableInvocationChecker(i)); + DelegatingIterable(IterableInvocationChecker(i)); } // Expector that wraps in DelegatingList. class ListExpector extends Expector implements List { wrappedChecker(Invocation i) => - new DelegatingList(new ListInvocationChecker(i)); + DelegatingList(ListInvocationChecker(i)); } // Expector that wraps in DelegatingSet. class SetExpector extends Expector implements Set { - wrappedChecker(Invocation i) => - new DelegatingSet(new SetInvocationChecker(i)); + wrappedChecker(Invocation i) => DelegatingSet(SetInvocationChecker(i)); } // Expector that wraps in DelegatingSet. class QueueExpector extends Expector implements Queue { wrappedChecker(Invocation i) => - new DelegatingQueue(new QueueInvocationChecker(i)); + DelegatingQueue(QueueInvocationChecker(i)); } // Expector that wraps in DelegatingMap. class MapExpector extends Expector implements Map { wrappedChecker(Invocation i) => - new DelegatingMap(new MapInvocationChecker(i)); + DelegatingMap(MapInvocationChecker(i)); } // Utility values to use as arguments in calls. Null func0() => null; Null func1(Object x) => null; Null func2(Object x, Object y) => null; -var val = new Object(); +var val = Object(); void main() { testIterable(var expect) { @@ -212,7 +211,7 @@ void main() { void testSet(var expect) { testIterable(expect); - Set set = new Set(); + Set set = Set(); (expect..add(val)).equals.add(val); (expect..addAll([val])).equals.addAll([val]); (expect..clear()).equals.clear(); @@ -240,7 +239,7 @@ void main() { } void testMap(var expect) { - Map map = new Map(); + Map map = Map(); (expect..[val]).equals[val]; (expect..[val] = val).equals[val] = val; (expect..addAll(map)).equals.addAll(map); @@ -393,7 +392,7 @@ void main() { }); test(".toSet", () { - expect(set.toSet(), equals(new Set.from(["foo", "bar"]))); + expect(set.toSet(), equals(Set.from(["foo", "bar"]))); }); test(".where", () { @@ -411,40 +410,40 @@ void main() { }); test(".difference", () { - expect(set.difference(new Set.from(["foo", "baz"])), - equals(new Set.from(["bar"]))); + expect(set.difference(Set.from(["foo", "baz"])), + equals(Set.from(["bar"]))); }); test(".intersection", () { - expect(set.intersection(new Set.from(["foo", "baz"])), - equals(new Set.from(["foo"]))); + expect(set.intersection(Set.from(["foo", "baz"])), + equals(Set.from(["foo"]))); }); test(".union", () { - expect(set.union(new Set.from(["foo", "baz"])), - equals(new Set.from(["foo", "bar", "baz"]))); + expect(set.union(Set.from(["foo", "baz"])), + equals(Set.from(["foo", "bar", "baz"]))); }); }); } test("Iterable", () { - testIterable(new IterableExpector()); + testIterable(IterableExpector()); }); test("List", () { - testList(new ListExpector()); + testList(ListExpector()); }); test("Set", () { - testSet(new SetExpector()); + testSet(SetExpector()); }); test("Queue", () { - testQueue(new QueueExpector()); + testQueue(QueueExpector()); }); test("Map", () { - testMap(new MapExpector()); + testMap(MapExpector()); }); group("MapKeySet", () { @@ -452,8 +451,8 @@ void main() { Set set; setUp(() { - map = new Map(); - set = new MapKeySet(map); + map = Map(); + set = MapKeySet(map); }); testTwoElementSet(() { @@ -520,9 +519,9 @@ void main() { Set set; setUp(() { - map = new Map(); - set = new MapValueSet( - map, (string) => string.substring(0, 1)); + map = Map(); + set = + MapValueSet(map, (string) => string.substring(0, 1)); }); testTwoElementSet(() { @@ -629,12 +628,12 @@ void main() { }); test(".retainAll respects an unusual notion of equality", () { - map = new HashMap( + map = HashMap( equals: (value1, value2) => value1.toLowerCase() == value2.toLowerCase(), hashCode: (value) => value.toLowerCase().hashCode); - set = new MapValueSet( - map, (string) => string.substring(0, 1)); + set = + MapValueSet(map, (string) => string.substring(0, 1)); map["f"] = "foo"; map["B"] = "bar"; From 7c150b7f5e333ce51afae510591b06f0d2de05a1 Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Tue, 7 May 2019 21:20:26 -0700 Subject: [PATCH 111/235] fix new pedantic lint (dart-lang/collection#105) --- pkgs/collection/lib/src/queue_list.dart | 6 +++++- pkgs/collection/pubspec.yaml | 1 - 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/lib/src/queue_list.dart b/pkgs/collection/lib/src/queue_list.dart index 7bf307b3..b2861d6c 100644 --- a/pkgs/collection/lib/src/queue_list.dart +++ b/pkgs/collection/lib/src/queue_list.dart @@ -94,7 +94,9 @@ class QueueList extends Object with ListMixin implements Queue { } } } else { - for (E element in iterable) _add(element); + for (E element in iterable) { + _add(element); + } } } @@ -253,8 +255,10 @@ class _CastQueueList extends QueueList { } int get _head => _delegate._head; + set _head(int value) => _delegate._head = value; int get _tail => _delegate._tail; + set _tail(int value) => _delegate._tail = value; } diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 926b5c40..d8775b22 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -6,7 +6,6 @@ author: Dart Team homepage: https://www.github.com/dart-lang/collection environment: - # Required for Dart 2.0 collection changes. sdk: '>=2.0.0 <3.0.0' dev_dependencies: From fd349d21b9b5a5dde73e4450de8fa8058bd79f62 Mon Sep 17 00:00:00 2001 From: Sam Rawlins Date: Thu, 23 May 2019 11:26:22 -0700 Subject: [PATCH 112/235] Fix missing_return violation newly enforced in Dart ~2.3.2-dev.0.1 (dart-lang/collection#106) --- pkgs/collection/test/functions_test.dart | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/test/functions_test.dart b/pkgs/collection/test/functions_test.dart index 809d486c..e754d541 100644 --- a/pkgs/collection/test/functions_test.dart +++ b/pkgs/collection/test/functions_test.dart @@ -89,7 +89,7 @@ void main() { test("returns null for an empty iterable", () { expect( minBy([], expectAsync1((_) {}, count: 0), - compare: expectAsync2((_, __) {}, count: 0)), + compare: expectAsync2((_, __) => null, count: 0)), isNull); }); @@ -125,7 +125,7 @@ void main() { test("returns null for an empty iterable", () { expect( maxBy([], expectAsync1((_) {}, count: 0), - compare: expectAsync2((_, __) {}, count: 0)), + compare: expectAsync2((_, __) => null, count: 0)), isNull); }); From 75843cd58fa934cd5f8bf0aa8db8f9aaecda2366 Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Wed, 10 Jul 2019 10:41:37 -0700 Subject: [PATCH 113/235] Fix lints (dart-lang/collection#108) --- pkgs/collection/test/wrapper_test.dart | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index 643c4417..3270def2 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -50,7 +50,7 @@ abstract class Expector { // Parameterization of noSuchMethod. Calls [_action] on every // member invocation. class InvocationChecker { - Invocation _expected; + final Invocation _expected; InvocationChecker(this._expected); noSuchMethod(Invocation actual) { testInvocations(_expected, actual); @@ -399,8 +399,7 @@ void main() { expect( set.where((element) => element.startsWith("f")), equals(["foo"])); expect(set.where((element) => element.startsWith("z")), equals([])); - expect( - set.where((element) => element is String), equals(["foo", "bar"])); + expect(set.whereType(), equals(["foo", "bar"])); }); test(".containsAll", () { From 51f77a27ba8f4db8524439a06a8424175b189641 Mon Sep 17 00:00:00 2001 From: Jacob MacDonald Date: Fri, 16 Aug 2019 09:07:15 -0700 Subject: [PATCH 114/235] CombinedMapView.keys fix (dart-lang/collection#110) Fixes https://github.com/dart-lang/collection/issues/109 Adds a custom iterable/iterator that can filter out duplicates and use that for the `CombineMapView.keys` getter. Updates tests to contain duplicates in maps, and ensure the keys/values from the earlier maps are the ones that are returned. Updates the changelog and docs to no longer claim `O(maps)` for the length getter. This now requires iteration of all items and is `O(total map entries)`. Prepare to publish as 1.14.12 --- pkgs/collection/CHANGELOG.md | 9 +++ .../src/combined_wrappers/combined_map.dart | 61 ++++++++++++++++--- pkgs/collection/pubspec.yaml | 2 +- .../test/combined_wrapper/map_test.dart | 24 +++++++- 4 files changed, 84 insertions(+), 12 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index f806f93c..b5db9910 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,12 @@ +## 1.14.12 + +* Fix `CombinedMapView.keys`, `CombinedMapView.length`, + `CombinedMapView.forEach`, and `CombinedMapView.values` to work as specified + and not repeat duplicate items from the maps. + * As a result of this fix the `length` getter now must iterate all maps in + order to remove duplicates and return an accurate length, so it is no + longer `O(maps)`. + ## 1.14.11 * Set max SDK version to `<3.0.0`. diff --git a/pkgs/collection/lib/src/combined_wrappers/combined_map.dart b/pkgs/collection/lib/src/combined_wrappers/combined_map.dart index aa86b5db..386a6ded 100644 --- a/pkgs/collection/lib/src/combined_wrappers/combined_map.dart +++ b/pkgs/collection/lib/src/combined_wrappers/combined_map.dart @@ -13,14 +13,16 @@ import 'combined_iterable.dart'; /// accessing individual map instances. In the occasion where a key occurs in /// multiple maps the first value is returned. /// -/// The resulting map has an index operator (`[]`) and `length` property that -/// are both `O(maps)`, rather than `O(1)`, and the map is unmodifiable - but -/// underlying changes to these maps are still accessible from the resulting -/// map. +/// The resulting map has an index operator (`[]`) that is `O(maps)`, rather +/// than `O(1)`, and the map is unmodifiable, but underlying changes to these +/// maps are still accessible from the resulting map. +/// +/// The `length` getter is `O(M)` where M is the total number of entries in +/// all maps, since it has to remove duplicate entries. class CombinedMapView extends UnmodifiableMapBase { final Iterable> _maps; - /// Create a new combined view into multiple maps. + /// Create a new combined view of multiple maps. /// /// The iterable is accessed lazily so it should be collection type like /// [List] or [Set] rather than a lazy iterable produced by `map()` et al. @@ -39,8 +41,11 @@ class CombinedMapView extends UnmodifiableMapBase { /// The keys of [this]. /// - /// The returned iterable has efficient `length` and `contains` operations, - /// based on [length] and [containsKey] of the individual maps. + /// The returned iterable has efficient `contains` operations, assuming the + /// iterables returned by the wrapped maps have efficient `contains` operations + /// for their `keys` iterables. + /// + /// The `length` must do deduplication and thus is not optimized. /// /// The order of iteration is defined by the individual `Map` implementations, /// but must be consistent between changes to the maps. @@ -48,5 +53,45 @@ class CombinedMapView extends UnmodifiableMapBase { /// Unlike most [Map] implementations, modifying an individual map while /// iterating the keys will _sometimes_ throw. This behavior may change in /// the future. - Iterable get keys => CombinedIterableView(_maps.map((m) => m.keys)); + Iterable get keys => _DeduplicatingIterableView( + CombinedIterableView(_maps.map((m) => m.keys))); +} + +/// A view of an iterable that skips any duplicate entries. +class _DeduplicatingIterableView extends IterableBase { + final Iterable _iterable; + + const _DeduplicatingIterableView(this._iterable); + + Iterator get iterator => _DeduplicatingIterator(_iterable.iterator); + + // Special cased contains/isEmpty since many iterables have an efficient + // implementation instead of running through the entire iterator. + // + // Note: We do not do this for `length` because we have to remove the + // duplicates. + + bool contains(Object element) => _iterable.contains(element); + + bool get isEmpty => _iterable.isEmpty; +} + +/// An iterator that wraps another iterator and skips duplicate values. +class _DeduplicatingIterator implements Iterator { + final Iterator _iterator; + + final _emitted = HashSet(); + + _DeduplicatingIterator(this._iterator); + + T get current => _iterator.current; + + bool moveNext() { + while (_iterator.moveNext()) { + if (_emitted.add(current)) { + return true; + } + } + return false; + } } diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index d8775b22..95759b86 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.14.12-dev +version: 1.14.12 description: Collections and utilities functions and classes related to collections. author: Dart Team diff --git a/pkgs/collection/test/combined_wrapper/map_test.dart b/pkgs/collection/test/combined_wrapper/map_test.dart index 605c0be2..ad6ccc20 100644 --- a/pkgs/collection/test/combined_wrapper/map_test.dart +++ b/pkgs/collection/test/combined_wrapper/map_test.dart @@ -2,6 +2,8 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. +import 'dart:collection'; + import 'package:collection/collection.dart'; import 'package:test/test.dart'; @@ -11,13 +13,23 @@ void main() { var map1 = const {1: 1, 2: 2, 3: 3}; var map2 = const {4: 4, 5: 5, 6: 6}; var map3 = const {7: 7, 8: 8, 9: 9}; - var concat = {}..addAll(map1)..addAll(map2)..addAll(map3); + var map4 = const {1: -1, 2: -2, 3: -3}; + var concat = SplayTreeMap() + // The duplicates map appears first here but last in the CombinedMapView + // which has the opposite semantics of `concat`. Keys/values should be + // returned from the first map that contains them. + ..addAll(map4) + ..addAll(map1) + ..addAll(map2) + ..addAll(map3); // In every way possible this should test the same as an UnmodifiableMapView. common.testReadMap( - concat, CombinedMapView([map1, map2, map3]), 'CombinedMapView'); + concat, CombinedMapView([map1, map2, map3, map4]), 'CombinedMapView'); - common.testReadMap(concat, CombinedMapView([map1, {}, map2, {}, map3, {}]), + common.testReadMap( + concat, + CombinedMapView([map1, {}, map2, {}, map3, {}, map4, {}]), 'CombinedMapView (some empty)'); test('should function as an empty map when no maps are passed', () { @@ -50,4 +62,10 @@ void main() { backing1.addAll(map1); expect(combined, map1); }); + + test('re-iterating keys produces same result', () { + var combined = CombinedMapView([map1, map2, map3, map4]); + var keys = combined.keys; + expect(keys.toList(), keys.toList()); + }); } From 6abc1dbb2020d66d3dbdccb8f99e11ad31ab57e3 Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Fri, 6 Dec 2019 10:46:24 -0800 Subject: [PATCH 115/235] Fix newly enforced package:pedantic lints (dart-lang/collection#112) - always_declare_return_types - annotate_overrides - omit_local_variable_types - prefer_collection_literals - prefer_conditional_assignment - prefer_single_quotes - prefer_spread_collections - unnecessary_this - use_function_type_syntax_for_parameters Bump minimum SDK to 2.3.0 for Set literals and collection spread elements. Convert from windows to unix line endings in `comparator.dart`. --- pkgs/collection/.travis.yml | 4 +- pkgs/collection/lib/algorithms.dart | 4 +- pkgs/collection/lib/collection.dart | 34 +- pkgs/collection/lib/equality.dart | 4 +- pkgs/collection/lib/iterable_zip.dart | 4 +- pkgs/collection/lib/priority_queue.dart | 4 +- pkgs/collection/lib/src/algorithms.dart | 90 +- .../collection/lib/src/canonicalized_map.dart | 45 +- .../combined_wrappers/combined_iterable.dart | 6 + .../src/combined_wrappers/combined_list.dart | 12 +- .../src/combined_wrappers/combined_map.dart | 7 + pkgs/collection/lib/src/comparators.dart | 786 +++++++++--------- .../lib/src/empty_unmodifiable_set.dart | 37 +- pkgs/collection/lib/src/equality.dart | 100 ++- pkgs/collection/lib/src/functions.dart | 18 +- pkgs/collection/lib/src/iterable_zip.dart | 11 +- pkgs/collection/lib/src/priority_queue.dart | 91 +- pkgs/collection/lib/src/queue_list.dart | 63 +- pkgs/collection/lib/src/union_set.dart | 9 +- .../lib/src/union_set_controller.dart | 2 +- .../lib/src/unmodifiable_wrappers.dart | 44 +- pkgs/collection/lib/src/wrappers.dart | 232 +++++- pkgs/collection/lib/wrappers.dart | 8 +- pkgs/collection/pubspec.yaml | 4 +- pkgs/collection/test/algorithms_test.dart | 144 ++-- .../test/canonicalized_map_test.dart | 192 ++--- .../test/combined_wrapper/list_test.dart | 4 +- pkgs/collection/test/comparators_test.dart | 132 +-- pkgs/collection/test/equality_map_test.dart | 4 +- pkgs/collection/test/equality_set_test.dart | 4 +- pkgs/collection/test/equality_test.dart | 134 +-- pkgs/collection/test/functions_test.dart | 314 +++---- .../test/ignore_ascii_case_test.dart | 54 +- pkgs/collection/test/iterable_zip_test.dart | 66 +- pkgs/collection/test/priority_queue_test.dart | 52 +- pkgs/collection/test/queue_list_test.dart | 138 +-- .../test/union_set_controller_test.dart | 14 +- pkgs/collection/test/union_set_test.dart | 112 +-- .../test/unmodifiable_collection_test.dart | 286 +++---- pkgs/collection/test/utils.dart | 2 +- pkgs/collection/test/wrapper_test.dart | 432 +++++----- 41 files changed, 2016 insertions(+), 1687 deletions(-) diff --git a/pkgs/collection/.travis.yml b/pkgs/collection/.travis.yml index 433c12e9..96ba17a0 100644 --- a/pkgs/collection/.travis.yml +++ b/pkgs/collection/.travis.yml @@ -1,7 +1,7 @@ language: dart dart: -- 2.0.0 +- 2.3.0 - dev dart_task: @@ -15,7 +15,7 @@ matrix: - dart: dev dart_task: dartanalyzer: --fatal-infos --fatal-warnings . - - dart: 2.0.0 + - dart: 2.3.0 dart_task: dartanalyzer: --fatal-warnings . diff --git a/pkgs/collection/lib/algorithms.dart b/pkgs/collection/lib/algorithms.dart index 4d3ae8b5..df0d712f 100644 --- a/pkgs/collection/lib/algorithms.dart +++ b/pkgs/collection/lib/algorithms.dart @@ -3,7 +3,7 @@ // BSD-style license that can be found in the LICENSE file. /// Import `collection.dart` instead. -@Deprecated("Will be removed in collection 2.0.0.") +@Deprecated('Will be removed in collection 2.0.0.') library dart.pkg.collection.algorithms; -export "src/algorithms.dart"; +export 'src/algorithms.dart'; diff --git a/pkgs/collection/lib/collection.dart b/pkgs/collection/lib/collection.dart index 70f9fbcf..282d60fc 100644 --- a/pkgs/collection/lib/collection.dart +++ b/pkgs/collection/lib/collection.dart @@ -2,20 +2,20 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -export "src/algorithms.dart"; -export "src/canonicalized_map.dart"; -export "src/combined_wrappers/combined_iterable.dart"; -export "src/combined_wrappers/combined_list.dart"; -export "src/combined_wrappers/combined_map.dart"; -export "src/comparators.dart"; -export "src/equality.dart"; -export "src/equality_map.dart"; -export "src/equality_set.dart"; -export "src/functions.dart"; -export "src/iterable_zip.dart"; -export "src/priority_queue.dart"; -export "src/queue_list.dart"; -export "src/union_set.dart"; -export "src/union_set_controller.dart"; -export "src/unmodifiable_wrappers.dart"; -export "src/wrappers.dart"; +export 'src/algorithms.dart'; +export 'src/canonicalized_map.dart'; +export 'src/combined_wrappers/combined_iterable.dart'; +export 'src/combined_wrappers/combined_list.dart'; +export 'src/combined_wrappers/combined_map.dart'; +export 'src/comparators.dart'; +export 'src/equality.dart'; +export 'src/equality_map.dart'; +export 'src/equality_set.dart'; +export 'src/functions.dart'; +export 'src/iterable_zip.dart'; +export 'src/priority_queue.dart'; +export 'src/queue_list.dart'; +export 'src/union_set.dart'; +export 'src/union_set_controller.dart'; +export 'src/unmodifiable_wrappers.dart'; +export 'src/wrappers.dart'; diff --git a/pkgs/collection/lib/equality.dart b/pkgs/collection/lib/equality.dart index 0f5b51dc..021430ba 100644 --- a/pkgs/collection/lib/equality.dart +++ b/pkgs/collection/lib/equality.dart @@ -3,7 +3,7 @@ // BSD-style license that can be found in the LICENSE file. /// Import `collection.dart` instead. -@Deprecated("Will be removed in collection 2.0.0.") +@Deprecated('Will be removed in collection 2.0.0.') library dart.pkg.collection.equality; -export "src/equality.dart"; +export 'src/equality.dart'; diff --git a/pkgs/collection/lib/iterable_zip.dart b/pkgs/collection/lib/iterable_zip.dart index 34e18ef7..1ef55952 100644 --- a/pkgs/collection/lib/iterable_zip.dart +++ b/pkgs/collection/lib/iterable_zip.dart @@ -3,7 +3,7 @@ // BSD-style license that can be found in the LICENSE file. /// Import `collection.dart` instead. -@Deprecated("Will be removed in collection 2.0.0.") +@Deprecated('Will be removed in collection 2.0.0.') library dart.pkg.collection.iterable_zip; -export "src/iterable_zip.dart"; +export 'src/iterable_zip.dart'; diff --git a/pkgs/collection/lib/priority_queue.dart b/pkgs/collection/lib/priority_queue.dart index f2a4703e..9ed8be80 100644 --- a/pkgs/collection/lib/priority_queue.dart +++ b/pkgs/collection/lib/priority_queue.dart @@ -3,7 +3,7 @@ // BSD-style license that can be found in the LICENSE file. /// Import `collection.dart` instead. -@Deprecated("Will be removed in collection 2.0.0.") +@Deprecated('Will be removed in collection 2.0.0.') library dart.pkg.collection.priority_queue; -export "src/priority_queue.dart"; +export 'src/priority_queue.dart'; diff --git a/pkgs/collection/lib/src/algorithms.dart b/pkgs/collection/lib/src/algorithms.dart index 9a9e3712..9722b776 100644 --- a/pkgs/collection/lib/src/algorithms.dart +++ b/pkgs/collection/lib/src/algorithms.dart @@ -2,9 +2,9 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import "dart:math" as math; +import 'dart:math' as math; -import "utils.dart"; +import 'utils.dart'; /// Returns a position of the [value] in [sortedList], if it is there. /// @@ -15,14 +15,14 @@ import "utils.dart"; /// the objects. If any object is not [Comparable], this throws a [CastError]. /// /// Returns -1 if [value] is not in the list by default. -int binarySearch(List sortedList, T value, {int compare(T a, T b)}) { +int binarySearch(List sortedList, T value, {int Function(T, T) compare}) { compare ??= defaultCompare(); - int min = 0; - int max = sortedList.length; + var min = 0; + var max = sortedList.length; while (min < max) { - int mid = min + ((max - min) >> 1); + var mid = min + ((max - min) >> 1); var element = sortedList[mid]; - int comp = compare(element, value); + var comp = compare(element, value); if (comp == 0) return mid; if (comp < 0) { min = mid + 1; @@ -44,14 +44,14 @@ int binarySearch(List sortedList, T value, {int compare(T a, T b)}) { /// /// Returns [sortedList.length] if all the items in [sortedList] compare less /// than [value]. -int lowerBound(List sortedList, T value, {int compare(T a, T b)}) { +int lowerBound(List sortedList, T value, {int Function(T, T) compare}) { compare ??= defaultCompare(); - int min = 0; - int max = sortedList.length; + var min = 0; + var max = sortedList.length; while (min < max) { - int mid = min + ((max - min) >> 1); + var mid = min + ((max - min) >> 1); var element = sortedList[mid]; - int comp = compare(element, value); + var comp = compare(element, value); if (comp < 0) { min = mid + 1; } else { @@ -66,10 +66,10 @@ int lowerBound(List sortedList, T value, {int compare(T a, T b)}) { /// A sub-range of a list can be shuffled by providing [start] and [end]. void shuffle(List list, [int start = 0, int end]) { var random = math.Random(); - if (end == null) end = list.length; - int length = end - start; + end ??= list.length; + var length = end - start; while (length > 1) { - int pos = random.nextInt(length); + var pos = random.nextInt(length); length--; var tmp1 = list[start + pos]; list[start + pos] = list[start + length]; @@ -79,13 +79,13 @@ void shuffle(List list, [int start = 0, int end]) { /// Reverses a list, or a part of a list, in-place. void reverse(List list, [int start = 0, int end]) { - if (end == null) end = list.length; + end ??= list.length; _reverse(list, start, end); } /// Internal helper function that assumes valid arguments. void _reverse(List list, int start, int end) { - for (int i = start, j = end - 1; i < j; i++, j--) { + for (var i = start, j = end - 1; i < j; i++, j--) { var tmp = list[i]; list[i] = list[j]; list[j] = tmp; @@ -108,19 +108,19 @@ void _reverse(List list, int start, int end) { /// This insertion sort is stable: Equal elements end up in the same order /// as they started in. void insertionSort(List list, - {int compare(T a, T b), int start = 0, int end}) { + {int Function(T, T) compare, int start = 0, int end}) { // If the same method could have both positional and named optional // parameters, this should be (list, [start, end], {compare}). compare ??= defaultCompare(); end ??= list.length; - for (int pos = start + 1; pos < end; pos++) { - int min = start; - int max = pos; + for (var pos = start + 1; pos < end; pos++) { + var min = start; + var max = pos; var element = list[pos]; while (min < max) { - int mid = min + ((max - min) >> 1); - int comparison = compare(element, list[mid]); + var mid = min + ((max - min) >> 1); + var comparison = compare(element, list[mid]); if (comparison < 0) { max = mid; } else { @@ -151,11 +151,11 @@ const int _MERGE_SORT_LIMIT = 32; /// This merge sort is stable: Equal elements end up in the same order /// as they started in. void mergeSort(List list, - {int start = 0, int end, int compare(T a, T b)}) { + {int start = 0, int end, int Function(T, T) compare}) { end ??= list.length; compare ??= defaultCompare(); - int length = end - start; + var length = end - start; if (length < 2) return; if (length < _MERGE_SORT_LIMIT) { insertionSort(list, compare: compare, start: start, end: end); @@ -167,13 +167,13 @@ void mergeSort(List list, // of the same size as the list to sort. // This split allows us to have only half as much extra space, // and it ends up in the original place. - int middle = start + ((end - start) >> 1); - int firstLength = middle - start; - int secondLength = end - middle; + var middle = start + ((end - start) >> 1); + var firstLength = middle - start; + var secondLength = end - middle; // secondLength is always the same as firstLength, or one greater. var scratchSpace = List(secondLength); _mergeSort(list, compare, middle, end, scratchSpace, 0); - int firstTarget = end - firstLength; + var firstTarget = end - firstLength; _mergeSort(list, compare, start, middle, list, firstTarget); _merge(compare, list, firstTarget, end, scratchSpace, 0, secondLength, list, start); @@ -183,17 +183,17 @@ void mergeSort(List list, /// one containing the original values. /// /// It will work in-place as well. -void _movingInsertionSort(List list, int compare(T a, T b), int start, - int end, List target, int targetOffset) { - int length = end - start; +void _movingInsertionSort(List list, int Function(T, T) compare, + int start, int end, List target, int targetOffset) { + var length = end - start; if (length == 0) return; target[targetOffset] = list[start]; - for (int i = 1; i < length; i++) { + for (var i = 1; i < length; i++) { var element = list[start + i]; - int min = targetOffset; - int max = targetOffset + i; + var min = targetOffset; + var max = targetOffset + i; while (min < max) { - int mid = min + ((max - min) >> 1); + var mid = min + ((max - min) >> 1); if (compare(element, target[mid]) < 0) { max = mid; } else { @@ -212,18 +212,18 @@ void _movingInsertionSort(List list, int compare(T a, T b), int start, /// /// Allows target to be the same list as [list], as long as it's not /// overlapping the `start..end` range. -void _mergeSort(List list, int compare(T a, T b), int start, int end, +void _mergeSort(List list, int Function(T, T) compare, int start, int end, List target, int targetOffset) { - int length = end - start; + var length = end - start; if (length < _MERGE_SORT_LIMIT) { _movingInsertionSort(list, compare, start, end, target, targetOffset); return; } - int middle = start + (length >> 1); - int firstLength = middle - start; - int secondLength = end - middle; + var middle = start + (length >> 1); + var firstLength = middle - start; + var secondLength = end - middle; // Here secondLength >= firstLength (differs by at most one). - int targetMiddle = targetOffset + firstLength; + var targetMiddle = targetOffset + firstLength; // Sort the second half into the end of the target area. _mergeSort(list, compare, middle, end, target, targetMiddle); // Sort the first half into the end of the source area. @@ -242,7 +242,7 @@ void _mergeSort(List list, int compare(T a, T b), int start, int end, /// This allows the merge to be stable if the first list contains elements /// that started out earlier than the ones in [secondList] void _merge( - int compare(T a, T b), + int Function(T, T) compare, List firstList, int firstStart, int firstEnd, @@ -254,8 +254,8 @@ void _merge( // No empty lists reaches here. assert(firstStart < firstEnd); assert(secondStart < secondEnd); - int cursor1 = firstStart; - int cursor2 = secondStart; + var cursor1 = firstStart; + var cursor2 = secondStart; var firstElement = firstList[cursor1++]; var secondElement = secondList[cursor2++]; while (true) { diff --git a/pkgs/collection/lib/src/canonicalized_map.dart b/pkgs/collection/lib/src/canonicalized_map.dart index 80324b2b..383c18f6 100644 --- a/pkgs/collection/lib/src/canonicalized_map.dart +++ b/pkgs/collection/lib/src/canonicalized_map.dart @@ -24,7 +24,7 @@ class CanonicalizedMap implements Map { final _IsValidKey _isValidKeyFn; - final _base = Map>(); + final _base = >{}; /// Creates an empty canonicalized map. /// @@ -34,7 +34,8 @@ class CanonicalizedMap implements Map { /// The [isValidKey] function is called before calling [canonicalize] for /// methods that take arbitrary objects. It can be used to filter out keys /// that can't be canonicalized. - CanonicalizedMap(C canonicalize(K key), {bool isValidKey(Object key)}) + CanonicalizedMap(C Function(K key) canonicalize, + {bool Function(Object key) isValidKey}) : _canonicalize = canonicalize, _isValidKeyFn = isValidKey; @@ -47,91 +48,113 @@ class CanonicalizedMap implements Map { /// The [isValidKey] function is called before calling [canonicalize] for /// methods that take arbitrary objects. It can be used to filter out keys /// that can't be canonicalized. - CanonicalizedMap.from(Map other, C canonicalize(K key), - {bool isValidKey(Object key)}) + CanonicalizedMap.from(Map other, C Function(K key) canonicalize, + {bool Function(Object key) isValidKey}) : _canonicalize = canonicalize, _isValidKeyFn = isValidKey { addAll(other); } + @override V operator [](Object key) { if (!_isValidKey(key)) return null; var pair = _base[_canonicalize(key as K)]; return pair == null ? null : pair.last; } + @override void operator []=(K key, V value) { if (!_isValidKey(key)) return; _base[_canonicalize(key)] = Pair(key, value); } + @override void addAll(Map other) { other.forEach((key, value) => this[key] = value); } + @override void addEntries(Iterable> entries) => _base.addEntries( entries.map((e) => MapEntry(_canonicalize(e.key), Pair(e.key, e.value)))); + @override Map cast() => _base.cast(); + @override void clear() { _base.clear(); } + @override bool containsKey(Object key) { if (!_isValidKey(key)) return false; return _base.containsKey(_canonicalize(key as K)); } + @override bool containsValue(Object value) => _base.values.any((pair) => pair.last == value); + @override Iterable> get entries => _base.entries.map((e) => MapEntry(e.value.first, e.value.last)); - void forEach(void f(K key, V value)) { + @override + void forEach(void Function(K, V) f) { _base.forEach((key, pair) => f(pair.first, pair.last)); } + @override bool get isEmpty => _base.isEmpty; + @override bool get isNotEmpty => _base.isNotEmpty; + @override Iterable get keys => _base.values.map((pair) => pair.first); + @override int get length => _base.length; - Map map(MapEntry transform(K key, V value)) => + @override + Map map(MapEntry Function(K, V) transform) => _base.map((_, pair) => transform(pair.first, pair.last)); - V putIfAbsent(K key, V ifAbsent()) { + @override + V putIfAbsent(K key, V Function() ifAbsent) { return _base .putIfAbsent(_canonicalize(key), () => Pair(key, ifAbsent())) .last; } + @override V remove(Object key) { if (!_isValidKey(key)) return null; var pair = _base.remove(_canonicalize(key as K)); return pair == null ? null : pair.last; } - void removeWhere(bool test(K key, V value)) => + @override + void removeWhere(bool Function(K key, V value) test) => _base.removeWhere((_, pair) => test(pair.first, pair.last)); @deprecated Map retype() => cast(); - V update(K key, V update(V value), {V ifAbsent()}) => _base + @override + V update(K key, V Function(V) update, {V Function() ifAbsent}) => _base .update(_canonicalize(key), (pair) => Pair(key, update(pair.last)), ifAbsent: ifAbsent == null ? null : () => Pair(key, ifAbsent())) .last; - void updateAll(V update(K key, V value)) => _base + @override + void updateAll(V Function(K key, V value) update) => _base .updateAll((_, pair) => Pair(pair.first, update(pair.first, pair.last))); + @override Iterable get values => _base.values.map((pair) => pair.last); + @override String toString() { // Detect toString() cycles. if (_isToStringVisiting(this)) { @@ -142,7 +165,7 @@ class CanonicalizedMap implements Map { try { _toStringVisiting.add(this); result.write('{'); - bool first = true; + var first = true; forEach((k, v) { if (!first) { result.write(', '); diff --git a/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart b/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart index 3df5e820..ce19c209 100644 --- a/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart +++ b/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart @@ -18,16 +18,20 @@ class CombinedIterableView extends IterableBase { /// Creates a combined view of [iterables]. const CombinedIterableView(this._iterables); + @override Iterator get iterator => _CombinedIterator(_iterables.map((i) => i.iterator).iterator); // Special cased contains/isEmpty/length since many iterables have an // efficient implementation instead of running through the entire iterator. + @override bool contains(Object element) => _iterables.any((i) => i.contains(element)); + @override bool get isEmpty => _iterables.every((i) => i.isEmpty); + @override int get length => _iterables.fold(0, (length, i) => length + i.length); } @@ -43,8 +47,10 @@ class _CombinedIterator implements Iterator { _CombinedIterator(this._iterators); + @override T get current => _iterators.current?.current; + @override bool moveNext() { var current = _iterators.current; if (current != null && current.moveNext()) { diff --git a/pkgs/collection/lib/src/combined_wrappers/combined_list.dart b/pkgs/collection/lib/src/combined_wrappers/combined_list.dart index 593490ea..961ea422 100644 --- a/pkgs/collection/lib/src/combined_wrappers/combined_list.dart +++ b/pkgs/collection/lib/src/combined_wrappers/combined_list.dart @@ -25,12 +25,15 @@ class CombinedListView extends ListBase /// Creates a combined view of [lists]. CombinedListView(this._lists); + @override set length(int length) { _throw(); } + @override int get length => _lists.fold(0, (length, list) => length + list.length); + @override T operator [](int index) { var initialIndex = index; for (var i = 0; i < _lists.length; i++) { @@ -43,24 +46,29 @@ class CombinedListView extends ListBase throw RangeError.index(initialIndex, this, 'index', null, length); } + @override void operator []=(int index, T value) { _throw(); } + @override void clear() { _throw(); } + @override bool remove(Object element) { _throw(); return null; } - void removeWhere(bool test(T element)) { + @override + void removeWhere(bool Function(T) test) { _throw(); } - void retainWhere(bool test(T element)) { + @override + void retainWhere(bool Function(T) test) { _throw(); } } diff --git a/pkgs/collection/lib/src/combined_wrappers/combined_map.dart b/pkgs/collection/lib/src/combined_wrappers/combined_map.dart index 386a6ded..8e2f7292 100644 --- a/pkgs/collection/lib/src/combined_wrappers/combined_map.dart +++ b/pkgs/collection/lib/src/combined_wrappers/combined_map.dart @@ -28,6 +28,7 @@ class CombinedMapView extends UnmodifiableMapBase { /// [List] or [Set] rather than a lazy iterable produced by `map()` et al. CombinedMapView(this._maps); + @override V operator [](Object key) { for (var map in _maps) { // Avoid two hash lookups on a positive hit. @@ -53,6 +54,7 @@ class CombinedMapView extends UnmodifiableMapBase { /// Unlike most [Map] implementations, modifying an individual map while /// iterating the keys will _sometimes_ throw. This behavior may change in /// the future. + @override Iterable get keys => _DeduplicatingIterableView( CombinedIterableView(_maps.map((m) => m.keys))); } @@ -63,6 +65,7 @@ class _DeduplicatingIterableView extends IterableBase { const _DeduplicatingIterableView(this._iterable); + @override Iterator get iterator => _DeduplicatingIterator(_iterable.iterator); // Special cased contains/isEmpty since many iterables have an efficient @@ -71,8 +74,10 @@ class _DeduplicatingIterableView extends IterableBase { // Note: We do not do this for `length` because we have to remove the // duplicates. + @override bool contains(Object element) => _iterable.contains(element); + @override bool get isEmpty => _iterable.isEmpty; } @@ -84,8 +89,10 @@ class _DeduplicatingIterator implements Iterator { _DeduplicatingIterator(this._iterator); + @override T get current => _iterator.current; + @override bool moveNext() { while (_iterator.moveNext()) { if (_emitted.add(current)) { diff --git a/pkgs/collection/lib/src/comparators.dart b/pkgs/collection/lib/src/comparators.dart index 5fc55b2e..0d223c9f 100644 --- a/pkgs/collection/lib/src/comparators.dart +++ b/pkgs/collection/lib/src/comparators.dart @@ -1,393 +1,393 @@ -// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file -// for details. All rights reserved. Use of this source code is governed by a -// BSD-style license that can be found in the LICENSE file. - -// Character constants. -const int _zero = 0x30; -const int _upperCaseA = 0x41; -const int _upperCaseZ = 0x5a; -const int _lowerCaseA = 0x61; -const int _lowerCaseZ = 0x7a; -const int _asciiCaseBit = 0x20; - -/// Checks if strings [a] and [b] differ only on the case of ASCII letters. -/// -/// Strings are equal if they have the same length, and the characters at -/// each index are the same, or they are ASCII letters where one is upper-case -/// and the other is the lower-case version of the same letter. -/// -/// The comparison does not ignore the case of non-ASCII letters, so -/// an upper-case ae-ligature (Æ) is different from -/// a lower case ae-ligature (æ). -/// -/// Ignoring non-ASCII letters is not generally a good idea, but it makes sense -/// for situations where the strings are known to be ASCII. Examples could -/// be Dart identifiers, base-64 or hex encoded strings, GUIDs or similar -/// strings with a known structure. -bool equalsIgnoreAsciiCase(String a, String b) { - if (a.length != b.length) return false; - for (int i = 0; i < a.length; i++) { - var aChar = a.codeUnitAt(i); - var bChar = b.codeUnitAt(i); - if (aChar == bChar) continue; - // Quick-check for whether this may be different cases of the same letter. - if (aChar ^ bChar != _asciiCaseBit) return false; - // If it's possible, then check if either character is actually an ASCII - // letter. - int aCharLowerCase = aChar | _asciiCaseBit; - if (_lowerCaseA <= aCharLowerCase && aCharLowerCase <= _lowerCaseZ) { - continue; - } - return false; - } - return true; -} - -/// Hash code for a string which is compatible with [equalsIgnoreAsciiCase]. -/// -/// The hash code is unaffected by changing the case of ASCII letters, but -/// the case of non-ASCII letters do affect the result. -int hashIgnoreAsciiCase(String string) { - // Jenkins hash code ( http://en.wikipedia.org/wiki/Jenkins_hash_function). - // adapted to smi values. - // Same hash used by dart2js for strings, modified to ignore ASCII letter - // case. - int hash = 0; - for (int i = 0; i < string.length; i++) { - int char = string.codeUnitAt(i); - // Convert lower-case ASCII letters to upper case.upper - // This ensures that strings that differ only in case will have the - // same hash code. - if (_lowerCaseA <= char && char <= _lowerCaseZ) char -= _asciiCaseBit; - hash = 0x1fffffff & (hash + char); - hash = 0x1fffffff & (hash + ((0x0007ffff & hash) << 10)); - hash >>= 6; - } - hash = 0x1fffffff & (hash + ((0x03ffffff & hash) << 3)); - hash >>= 11; - return 0x1fffffff & (hash + ((0x00003fff & hash) << 15)); -} - -/// Compares [a] and [b] lexically, converting ASCII letters to upper case. -/// -/// Comparison treats all lower-case ASCII letters as upper-case letters, -/// but does no case conversion for non-ASCII letters. -/// -/// If two strings differ only on the case of ASCII letters, the one with the -/// capital letter at the first difference will compare as less than the other -/// string. This tie-breaking ensures that the comparison is a total ordering -/// on strings and is compatible with equality. -/// -/// Ignoring non-ASCII letters is not generally a good idea, but it makes sense -/// for situations where the strings are known to be ASCII. Examples could -/// be Dart identifiers, base-64 or hex encoded strings, GUIDs or similar -/// strings with a known structure. -int compareAsciiUpperCase(String a, String b) { - int defaultResult = 0; // Returned if no difference found. - for (int i = 0; i < a.length; i++) { - if (i >= b.length) return 1; - var aChar = a.codeUnitAt(i); - var bChar = b.codeUnitAt(i); - if (aChar == bChar) continue; - // Upper-case if letters. - int aUpperCase = aChar; - int bUpperCase = bChar; - if (_lowerCaseA <= aChar && aChar <= _lowerCaseZ) { - aUpperCase -= _asciiCaseBit; - } - if (_lowerCaseA <= bChar && bChar <= _lowerCaseZ) { - bUpperCase -= _asciiCaseBit; - } - if (aUpperCase != bUpperCase) return (aUpperCase - bUpperCase).sign; - if (defaultResult == 0) defaultResult = (aChar - bChar); - } - if (b.length > a.length) return -1; - return defaultResult.sign; -} - -/// Compares [a] and [b] lexically, converting ASCII letters to lower case. -/// -/// Comparison treats all upper-case ASCII letters as lower-case letters, -/// but does no case conversion for non-ASCII letters. -/// -/// If two strings differ only on the case of ASCII letters, the one with the -/// capital letter at the first difference will compare as less than the other -/// string. This tie-breaking ensures that the comparison is a total ordering -/// on strings. -/// -/// Ignoring non-ASCII letters is not generally a good idea, but it makes sense -/// for situations where the strings are known to be ASCII. Examples could -/// be Dart identifiers, base-64 or hex encoded strings, GUIDs or similar -/// strings with a known structure. -int compareAsciiLowerCase(String a, String b) { - int defaultResult = 0; - for (int i = 0; i < a.length; i++) { - if (i >= b.length) return 1; - var aChar = a.codeUnitAt(i); - var bChar = b.codeUnitAt(i); - if (aChar == bChar) continue; - int aLowerCase = aChar; - int bLowerCase = bChar; - // Upper case if ASCII letters. - if (_upperCaseA <= bChar && bChar <= _upperCaseZ) { - bLowerCase += _asciiCaseBit; - } - if (_upperCaseA <= aChar && aChar <= _upperCaseZ) { - aLowerCase += _asciiCaseBit; - } - if (aLowerCase != bLowerCase) return (aLowerCase - bLowerCase).sign; - if (defaultResult == 0) defaultResult = aChar - bChar; - } - if (b.length > a.length) return -1; - return defaultResult.sign; -} - -/// Compares strings [a] and [b] according to [natural sort ordering][]. -/// -/// A natural sort ordering is a lexical ordering where embedded -/// numerals (digit sequences) are treated as a single unit and ordered by -/// numerical value. -/// This means that `"a10b"` will be ordered after `"a7b"` in natural -/// ordering, where lexical ordering would put the `1` before the `7`, ignoring -/// that the `1` is part of a larger number. -/// -/// Example: -/// The following strings are in the order they would be sorted by using this -/// comparison function: -/// -/// "a", "a0", "a0b", "a1", "a01", "a9", "a10", "a100", "a100b", "aa" -/// -/// [natural sort ordering]: https://en.wikipedia.org/wiki/Natural_sort_order -int compareNatural(String a, String b) { - for (int i = 0; i < a.length; i++) { - if (i >= b.length) return 1; - var aChar = a.codeUnitAt(i); - var bChar = b.codeUnitAt(i); - if (aChar != bChar) { - return _compareNaturally(a, b, i, aChar, bChar); - } - } - if (b.length > a.length) return -1; - return 0; -} - -/// Compares strings [a] and [b] according to lower-case -/// [natural sort ordering][]. -/// -/// ASCII letters are converted to lower case before being compared, like -/// for [compareAsciiLowerCase], then the result is compared like for -/// [compareNatural]. -/// -/// If two strings differ only on the case of ASCII letters, the one with the -/// capital letter at the first difference will compare as less than the other -/// string. This tie-breaking ensures that the comparison is a total ordering -/// on strings. -/// -/// [natural sort ordering]: https://en.wikipedia.org/wiki/Natural_sort_order -int compareAsciiLowerCaseNatural(String a, String b) { - int defaultResult = 0; // Returned if no difference found. - for (int i = 0; i < a.length; i++) { - if (i >= b.length) return 1; - var aChar = a.codeUnitAt(i); - var bChar = b.codeUnitAt(i); - if (aChar == bChar) continue; - int aLowerCase = aChar; - int bLowerCase = bChar; - if (_upperCaseA <= aChar && aChar <= _upperCaseZ) { - aLowerCase += _asciiCaseBit; - } - if (_upperCaseA <= bChar && bChar <= _upperCaseZ) { - bLowerCase += _asciiCaseBit; - } - if (aLowerCase != bLowerCase) { - return _compareNaturally(a, b, i, aLowerCase, bLowerCase); - } - if (defaultResult == 0) defaultResult = aChar - bChar; - } - if (b.length > a.length) return -1; - return defaultResult.sign; -} - -/// Compares strings [a] and [b] according to upper-case -/// [natural sort ordering][]. -/// -/// ASCII letters are converted to upper case before being compared, like -/// for [compareAsciiUpperCase], then the result is compared like for -/// [compareNatural]. -/// -/// If two strings differ only on the case of ASCII letters, the one with the -/// capital letter at the first difference will compare as less than the other -/// string. This tie-breaking ensures that the comparison is a total ordering -/// on strings -/// -/// [natural sort ordering]: https://en.wikipedia.org/wiki/Natural_sort_order -int compareAsciiUpperCaseNatural(String a, String b) { - int defaultResult = 0; - for (int i = 0; i < a.length; i++) { - if (i >= b.length) return 1; - var aChar = a.codeUnitAt(i); - var bChar = b.codeUnitAt(i); - if (aChar == bChar) continue; - int aUpperCase = aChar; - int bUpperCase = bChar; - if (_lowerCaseA <= aChar && aChar <= _lowerCaseZ) { - aUpperCase -= _asciiCaseBit; - } - if (_lowerCaseA <= bChar && bChar <= _lowerCaseZ) { - bUpperCase -= _asciiCaseBit; - } - if (aUpperCase != bUpperCase) { - return _compareNaturally(a, b, i, aUpperCase, bUpperCase); - } - if (defaultResult == 0) defaultResult = aChar - bChar; - } - if (b.length > a.length) return -1; - return defaultResult.sign; -} - -/// Check for numbers overlapping the current mismatched characters. -/// -/// If both [aChar] and [bChar] are digits, use numerical comparison. -/// Check if the previous characters is a non-zero number, and if not, -/// skip - but count - leading zeros before comparing numbers. -/// -/// If one is a digit and the other isn't, check if the previous character -/// is a digit, and if so, the the one with the digit is the greater number. -/// -/// Otherwise just returns the difference between [aChar] and [bChar]. -int _compareNaturally(String a, String b, int index, int aChar, int bChar) { - assert(aChar != bChar); - var aIsDigit = _isDigit(aChar); - var bIsDigit = _isDigit(bChar); - if (aIsDigit) { - if (bIsDigit) { - return _compareNumerically(a, b, aChar, bChar, index); - } else if (index > 0 && _isDigit(a.codeUnitAt(index - 1))) { - // aChar is the continuation of a longer number. - return 1; - } - } else if (bIsDigit && index > 0 && _isDigit(b.codeUnitAt(index - 1))) { - // bChar is the continuation of a longer number. - return -1; - } - // Characters are both non-digits, or not continuation of earlier number. - return (aChar - bChar).sign; -} - -/// Compare numbers overlapping [aChar] and [bChar] numerically. -/// -/// If the numbers have the same numerical value, but one has more leading -/// zeros, the longer number is considered greater than the shorter one. -/// -/// This ensures a total ordering on strings compatible with equality. -int _compareNumerically(String a, String b, int aChar, int bChar, int index) { - // Both are digits. Find the first significant different digit, then find - // the length of the numbers. - if (_isNonZeroNumberSuffix(a, index)) { - // Part of a longer number, differs at this index, just count the length. - int result = _compareDigitCount(a, b, index, index); - if (result != 0) return result; - // If same length, the current character is the most significant differing - // digit. - return (aChar - bChar).sign; - } - // Not part of larger (non-zero) number, so skip leading zeros before - // comparing numbers. - int aIndex = index; - int bIndex = index; - if (aChar == _zero) { - do { - aIndex++; - if (aIndex == a.length) return -1; // number in a is zero, b is not. - aChar = a.codeUnitAt(aIndex); - } while (aChar == _zero); - if (!_isDigit(aChar)) return -1; - } else if (bChar == _zero) { - do { - bIndex++; - if (bIndex == b.length) return 1; // number in b is zero, a is not. - bChar = b.codeUnitAt(bIndex); - } while (bChar == _zero); - if (!_isDigit(bChar)) return 1; - } - if (aChar != bChar) { - int result = _compareDigitCount(a, b, aIndex, bIndex); - if (result != 0) return result; - return (aChar - bChar).sign; - } - // Same leading digit, one had more leading zeros. - // Compare digits until reaching a difference. - while (true) { - var aIsDigit = false; - var bIsDigit = false; - aChar = 0; - bChar = 0; - if (++aIndex < a.length) { - aChar = a.codeUnitAt(aIndex); - aIsDigit = _isDigit(aChar); - } - if (++bIndex < b.length) { - bChar = b.codeUnitAt(bIndex); - bIsDigit = _isDigit(bChar); - } - if (aIsDigit) { - if (bIsDigit) { - if (aChar == bChar) continue; - // First different digit found. - break; - } - // bChar is non-digit, so a has longer number. - return 1; - } else if (bIsDigit) { - return -1; // b has longer number. - } else { - // Neither is digit, so numbers had same numerical value. - // Fall back on number of leading zeros - // (reflected by difference in indices). - return (aIndex - bIndex).sign; - } - } - // At first differing digits. - int result = _compareDigitCount(a, b, aIndex, bIndex); - if (result != 0) return result; - return (aChar - bChar).sign; -} - -/// Checks which of [a] and [b] has the longest sequence of digits. -/// -/// Starts counting from `i + 1` and `j + 1` (assumes that `a[i]` and `b[j]` are -/// both already known to be digits). -int _compareDigitCount(String a, String b, int i, int j) { - while (++i < a.length) { - bool aIsDigit = _isDigit(a.codeUnitAt(i)); - if (++j == b.length) return aIsDigit ? 1 : 0; - bool bIsDigit = _isDigit(b.codeUnitAt(j)); - if (aIsDigit) { - if (bIsDigit) continue; - return 1; - } else if (bIsDigit) { - return -1; - } else { - return 0; - } - } - if (++j < b.length && _isDigit(b.codeUnitAt(j))) { - return -1; - } - return 0; -} - -bool _isDigit(int charCode) => (charCode ^ _zero) <= 9; - -/// Check if the digit at [index] is continuing a non-zero number. -/// -/// If there is no non-zero digits before, then leading zeros at [index] -/// are also ignored when comparing numerically. If there is a non-zero digit -/// before, then zeros at [index] are significant. -bool _isNonZeroNumberSuffix(String string, int index) { - while (--index >= 0) { - int char = string.codeUnitAt(index); - if (char != _zero) return _isDigit(char); - } - return false; -} +// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +// Character constants. +const int _zero = 0x30; +const int _upperCaseA = 0x41; +const int _upperCaseZ = 0x5a; +const int _lowerCaseA = 0x61; +const int _lowerCaseZ = 0x7a; +const int _asciiCaseBit = 0x20; + +/// Checks if strings [a] and [b] differ only on the case of ASCII letters. +/// +/// Strings are equal if they have the same length, and the characters at +/// each index are the same, or they are ASCII letters where one is upper-case +/// and the other is the lower-case version of the same letter. +/// +/// The comparison does not ignore the case of non-ASCII letters, so +/// an upper-case ae-ligature (Æ) is different from +/// a lower case ae-ligature (æ). +/// +/// Ignoring non-ASCII letters is not generally a good idea, but it makes sense +/// for situations where the strings are known to be ASCII. Examples could +/// be Dart identifiers, base-64 or hex encoded strings, GUIDs or similar +/// strings with a known structure. +bool equalsIgnoreAsciiCase(String a, String b) { + if (a.length != b.length) return false; + for (var i = 0; i < a.length; i++) { + var aChar = a.codeUnitAt(i); + var bChar = b.codeUnitAt(i); + if (aChar == bChar) continue; + // Quick-check for whether this may be different cases of the same letter. + if (aChar ^ bChar != _asciiCaseBit) return false; + // If it's possible, then check if either character is actually an ASCII + // letter. + var aCharLowerCase = aChar | _asciiCaseBit; + if (_lowerCaseA <= aCharLowerCase && aCharLowerCase <= _lowerCaseZ) { + continue; + } + return false; + } + return true; +} + +/// Hash code for a string which is compatible with [equalsIgnoreAsciiCase]. +/// +/// The hash code is unaffected by changing the case of ASCII letters, but +/// the case of non-ASCII letters do affect the result. +int hashIgnoreAsciiCase(String string) { + // Jenkins hash code ( http://en.wikipedia.org/wiki/Jenkins_hash_function). + // adapted to smi values. + // Same hash used by dart2js for strings, modified to ignore ASCII letter + // case. + var hash = 0; + for (var i = 0; i < string.length; i++) { + var char = string.codeUnitAt(i); + // Convert lower-case ASCII letters to upper case.upper + // This ensures that strings that differ only in case will have the + // same hash code. + if (_lowerCaseA <= char && char <= _lowerCaseZ) char -= _asciiCaseBit; + hash = 0x1fffffff & (hash + char); + hash = 0x1fffffff & (hash + ((0x0007ffff & hash) << 10)); + hash >>= 6; + } + hash = 0x1fffffff & (hash + ((0x03ffffff & hash) << 3)); + hash >>= 11; + return 0x1fffffff & (hash + ((0x00003fff & hash) << 15)); +} + +/// Compares [a] and [b] lexically, converting ASCII letters to upper case. +/// +/// Comparison treats all lower-case ASCII letters as upper-case letters, +/// but does no case conversion for non-ASCII letters. +/// +/// If two strings differ only on the case of ASCII letters, the one with the +/// capital letter at the first difference will compare as less than the other +/// string. This tie-breaking ensures that the comparison is a total ordering +/// on strings and is compatible with equality. +/// +/// Ignoring non-ASCII letters is not generally a good idea, but it makes sense +/// for situations where the strings are known to be ASCII. Examples could +/// be Dart identifiers, base-64 or hex encoded strings, GUIDs or similar +/// strings with a known structure. +int compareAsciiUpperCase(String a, String b) { + var defaultResult = 0; // Returned if no difference found. + for (var i = 0; i < a.length; i++) { + if (i >= b.length) return 1; + var aChar = a.codeUnitAt(i); + var bChar = b.codeUnitAt(i); + if (aChar == bChar) continue; + // Upper-case if letters. + var aUpperCase = aChar; + var bUpperCase = bChar; + if (_lowerCaseA <= aChar && aChar <= _lowerCaseZ) { + aUpperCase -= _asciiCaseBit; + } + if (_lowerCaseA <= bChar && bChar <= _lowerCaseZ) { + bUpperCase -= _asciiCaseBit; + } + if (aUpperCase != bUpperCase) return (aUpperCase - bUpperCase).sign; + if (defaultResult == 0) defaultResult = (aChar - bChar); + } + if (b.length > a.length) return -1; + return defaultResult.sign; +} + +/// Compares [a] and [b] lexically, converting ASCII letters to lower case. +/// +/// Comparison treats all upper-case ASCII letters as lower-case letters, +/// but does no case conversion for non-ASCII letters. +/// +/// If two strings differ only on the case of ASCII letters, the one with the +/// capital letter at the first difference will compare as less than the other +/// string. This tie-breaking ensures that the comparison is a total ordering +/// on strings. +/// +/// Ignoring non-ASCII letters is not generally a good idea, but it makes sense +/// for situations where the strings are known to be ASCII. Examples could +/// be Dart identifiers, base-64 or hex encoded strings, GUIDs or similar +/// strings with a known structure. +int compareAsciiLowerCase(String a, String b) { + var defaultResult = 0; + for (var i = 0; i < a.length; i++) { + if (i >= b.length) return 1; + var aChar = a.codeUnitAt(i); + var bChar = b.codeUnitAt(i); + if (aChar == bChar) continue; + var aLowerCase = aChar; + var bLowerCase = bChar; + // Upper case if ASCII letters. + if (_upperCaseA <= bChar && bChar <= _upperCaseZ) { + bLowerCase += _asciiCaseBit; + } + if (_upperCaseA <= aChar && aChar <= _upperCaseZ) { + aLowerCase += _asciiCaseBit; + } + if (aLowerCase != bLowerCase) return (aLowerCase - bLowerCase).sign; + if (defaultResult == 0) defaultResult = aChar - bChar; + } + if (b.length > a.length) return -1; + return defaultResult.sign; +} + +/// Compares strings [a] and [b] according to [natural sort ordering][]. +/// +/// A natural sort ordering is a lexical ordering where embedded +/// numerals (digit sequences) are treated as a single unit and ordered by +/// numerical value. +/// This means that `"a10b"` will be ordered after `"a7b"` in natural +/// ordering, where lexical ordering would put the `1` before the `7`, ignoring +/// that the `1` is part of a larger number. +/// +/// Example: +/// The following strings are in the order they would be sorted by using this +/// comparison function: +/// +/// "a", "a0", "a0b", "a1", "a01", "a9", "a10", "a100", "a100b", "aa" +/// +/// [natural sort ordering]: https://en.wikipedia.org/wiki/Natural_sort_order +int compareNatural(String a, String b) { + for (var i = 0; i < a.length; i++) { + if (i >= b.length) return 1; + var aChar = a.codeUnitAt(i); + var bChar = b.codeUnitAt(i); + if (aChar != bChar) { + return _compareNaturally(a, b, i, aChar, bChar); + } + } + if (b.length > a.length) return -1; + return 0; +} + +/// Compares strings [a] and [b] according to lower-case +/// [natural sort ordering][]. +/// +/// ASCII letters are converted to lower case before being compared, like +/// for [compareAsciiLowerCase], then the result is compared like for +/// [compareNatural]. +/// +/// If two strings differ only on the case of ASCII letters, the one with the +/// capital letter at the first difference will compare as less than the other +/// string. This tie-breaking ensures that the comparison is a total ordering +/// on strings. +/// +/// [natural sort ordering]: https://en.wikipedia.org/wiki/Natural_sort_order +int compareAsciiLowerCaseNatural(String a, String b) { + var defaultResult = 0; // Returned if no difference found. + for (var i = 0; i < a.length; i++) { + if (i >= b.length) return 1; + var aChar = a.codeUnitAt(i); + var bChar = b.codeUnitAt(i); + if (aChar == bChar) continue; + var aLowerCase = aChar; + var bLowerCase = bChar; + if (_upperCaseA <= aChar && aChar <= _upperCaseZ) { + aLowerCase += _asciiCaseBit; + } + if (_upperCaseA <= bChar && bChar <= _upperCaseZ) { + bLowerCase += _asciiCaseBit; + } + if (aLowerCase != bLowerCase) { + return _compareNaturally(a, b, i, aLowerCase, bLowerCase); + } + if (defaultResult == 0) defaultResult = aChar - bChar; + } + if (b.length > a.length) return -1; + return defaultResult.sign; +} + +/// Compares strings [a] and [b] according to upper-case +/// [natural sort ordering][]. +/// +/// ASCII letters are converted to upper case before being compared, like +/// for [compareAsciiUpperCase], then the result is compared like for +/// [compareNatural]. +/// +/// If two strings differ only on the case of ASCII letters, the one with the +/// capital letter at the first difference will compare as less than the other +/// string. This tie-breaking ensures that the comparison is a total ordering +/// on strings +/// +/// [natural sort ordering]: https://en.wikipedia.org/wiki/Natural_sort_order +int compareAsciiUpperCaseNatural(String a, String b) { + var defaultResult = 0; + for (var i = 0; i < a.length; i++) { + if (i >= b.length) return 1; + var aChar = a.codeUnitAt(i); + var bChar = b.codeUnitAt(i); + if (aChar == bChar) continue; + var aUpperCase = aChar; + var bUpperCase = bChar; + if (_lowerCaseA <= aChar && aChar <= _lowerCaseZ) { + aUpperCase -= _asciiCaseBit; + } + if (_lowerCaseA <= bChar && bChar <= _lowerCaseZ) { + bUpperCase -= _asciiCaseBit; + } + if (aUpperCase != bUpperCase) { + return _compareNaturally(a, b, i, aUpperCase, bUpperCase); + } + if (defaultResult == 0) defaultResult = aChar - bChar; + } + if (b.length > a.length) return -1; + return defaultResult.sign; +} + +/// Check for numbers overlapping the current mismatched characters. +/// +/// If both [aChar] and [bChar] are digits, use numerical comparison. +/// Check if the previous characters is a non-zero number, and if not, +/// skip - but count - leading zeros before comparing numbers. +/// +/// If one is a digit and the other isn't, check if the previous character +/// is a digit, and if so, the the one with the digit is the greater number. +/// +/// Otherwise just returns the difference between [aChar] and [bChar]. +int _compareNaturally(String a, String b, int index, int aChar, int bChar) { + assert(aChar != bChar); + var aIsDigit = _isDigit(aChar); + var bIsDigit = _isDigit(bChar); + if (aIsDigit) { + if (bIsDigit) { + return _compareNumerically(a, b, aChar, bChar, index); + } else if (index > 0 && _isDigit(a.codeUnitAt(index - 1))) { + // aChar is the continuation of a longer number. + return 1; + } + } else if (bIsDigit && index > 0 && _isDigit(b.codeUnitAt(index - 1))) { + // bChar is the continuation of a longer number. + return -1; + } + // Characters are both non-digits, or not continuation of earlier number. + return (aChar - bChar).sign; +} + +/// Compare numbers overlapping [aChar] and [bChar] numerically. +/// +/// If the numbers have the same numerical value, but one has more leading +/// zeros, the longer number is considered greater than the shorter one. +/// +/// This ensures a total ordering on strings compatible with equality. +int _compareNumerically(String a, String b, int aChar, int bChar, int index) { + // Both are digits. Find the first significant different digit, then find + // the length of the numbers. + if (_isNonZeroNumberSuffix(a, index)) { + // Part of a longer number, differs at this index, just count the length. + var result = _compareDigitCount(a, b, index, index); + if (result != 0) return result; + // If same length, the current character is the most significant differing + // digit. + return (aChar - bChar).sign; + } + // Not part of larger (non-zero) number, so skip leading zeros before + // comparing numbers. + var aIndex = index; + var bIndex = index; + if (aChar == _zero) { + do { + aIndex++; + if (aIndex == a.length) return -1; // number in a is zero, b is not. + aChar = a.codeUnitAt(aIndex); + } while (aChar == _zero); + if (!_isDigit(aChar)) return -1; + } else if (bChar == _zero) { + do { + bIndex++; + if (bIndex == b.length) return 1; // number in b is zero, a is not. + bChar = b.codeUnitAt(bIndex); + } while (bChar == _zero); + if (!_isDigit(bChar)) return 1; + } + if (aChar != bChar) { + var result = _compareDigitCount(a, b, aIndex, bIndex); + if (result != 0) return result; + return (aChar - bChar).sign; + } + // Same leading digit, one had more leading zeros. + // Compare digits until reaching a difference. + while (true) { + var aIsDigit = false; + var bIsDigit = false; + aChar = 0; + bChar = 0; + if (++aIndex < a.length) { + aChar = a.codeUnitAt(aIndex); + aIsDigit = _isDigit(aChar); + } + if (++bIndex < b.length) { + bChar = b.codeUnitAt(bIndex); + bIsDigit = _isDigit(bChar); + } + if (aIsDigit) { + if (bIsDigit) { + if (aChar == bChar) continue; + // First different digit found. + break; + } + // bChar is non-digit, so a has longer number. + return 1; + } else if (bIsDigit) { + return -1; // b has longer number. + } else { + // Neither is digit, so numbers had same numerical value. + // Fall back on number of leading zeros + // (reflected by difference in indices). + return (aIndex - bIndex).sign; + } + } + // At first differing digits. + var result = _compareDigitCount(a, b, aIndex, bIndex); + if (result != 0) return result; + return (aChar - bChar).sign; +} + +/// Checks which of [a] and [b] has the longest sequence of digits. +/// +/// Starts counting from `i + 1` and `j + 1` (assumes that `a[i]` and `b[j]` are +/// both already known to be digits). +int _compareDigitCount(String a, String b, int i, int j) { + while (++i < a.length) { + var aIsDigit = _isDigit(a.codeUnitAt(i)); + if (++j == b.length) return aIsDigit ? 1 : 0; + var bIsDigit = _isDigit(b.codeUnitAt(j)); + if (aIsDigit) { + if (bIsDigit) continue; + return 1; + } else if (bIsDigit) { + return -1; + } else { + return 0; + } + } + if (++j < b.length && _isDigit(b.codeUnitAt(j))) { + return -1; + } + return 0; +} + +bool _isDigit(int charCode) => (charCode ^ _zero) <= 9; + +/// Check if the digit at [index] is continuing a non-zero number. +/// +/// If there is no non-zero digits before, then leading zeros at [index] +/// are also ignored when comparing numerically. If there is a non-zero digit +/// before, then zeros at [index] are significant. +bool _isNonZeroNumberSuffix(String string, int index) { + while (--index >= 0) { + var char = string.codeUnitAt(index); + if (char != _zero) return _isDigit(char); + } + return false; +} diff --git a/pkgs/collection/lib/src/empty_unmodifiable_set.dart b/pkgs/collection/lib/src/empty_unmodifiable_set.dart index 2c9ed301..86cbbb42 100644 --- a/pkgs/collection/lib/src/empty_unmodifiable_set.dart +++ b/pkgs/collection/lib/src/empty_unmodifiable_set.dart @@ -12,34 +12,57 @@ import 'unmodifiable_wrappers.dart'; class EmptyUnmodifiableSet extends IterableBase implements UnmodifiableSetView { static T _throw() { - throw UnsupportedError("Cannot modify an unmodifiable Set"); + throw UnsupportedError('Cannot modify an unmodifiable Set'); } + @override Iterator get iterator => Iterable.empty().iterator; + @override int get length => 0; const EmptyUnmodifiableSet(); + @override EmptyUnmodifiableSet cast() => EmptyUnmodifiableSet(); + @override bool contains(Object element) => false; + @override bool containsAll(Iterable other) => other.isEmpty; + @override Iterable followedBy(Iterable other) => Set.from(other); + @override E lookup(Object element) => null; @deprecated + @override EmptyUnmodifiableSet retype() => EmptyUnmodifiableSet(); - E singleWhere(bool test(E element), {E orElse()}) => super.singleWhere(test); + @override + E singleWhere(bool Function(E) test, {E Function() orElse}) => + super.singleWhere(test); + @override Iterable whereType() => EmptyUnmodifiableSet(); - Set toSet() => Set(); + @override + Set toSet() => {}; + @override Set union(Set other) => Set.from(other); - Set intersection(Set other) => Set(); - Set difference(Set other) => Set(); + @override + Set intersection(Set other) => {}; + @override + Set difference(Set other) => {}; + @override bool add(E value) => _throw(); + @override void addAll(Iterable elements) => _throw(); + @override void clear() => _throw(); + @override bool remove(Object element) => _throw(); + @override void removeAll(Iterable elements) => _throw(); - void removeWhere(bool test(E element)) => _throw(); - void retainWhere(bool test(E element)) => _throw(); + @override + void removeWhere(bool Function(E) test) => _throw(); + @override + void retainWhere(bool Function(E) test) => _throw(); + @override void retainAll(Iterable elements) => _throw(); } diff --git a/pkgs/collection/lib/src/equality.dart b/pkgs/collection/lib/src/equality.dart index 5f4038ad..439d5268 100644 --- a/pkgs/collection/lib/src/equality.dart +++ b/pkgs/collection/lib/src/equality.dart @@ -2,9 +2,9 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import "dart:collection"; +import 'dart:collection'; -import "comparators.dart"; +import 'comparators.dart'; const int _HASH_MASK = 0x7fffffff; @@ -55,14 +55,18 @@ class EqualityBy implements Equality { // Determines equality between two values of F. final Equality _inner; - EqualityBy(F getKey(E object), [Equality inner = const DefaultEquality()]) + EqualityBy(F Function(E) getKey, + [Equality inner = const DefaultEquality()]) : _getKey = getKey, _inner = inner; + @override bool equals(E e1, E e2) => _inner.equals(_getKey(e1), _getKey(e2)); + @override int hash(E e) => _inner.hash(_getKey(e)); + @override bool isValidKey(Object o) { if (o is E) { final value = _getKey(o); @@ -82,16 +86,22 @@ class EqualityBy implements Equality { /// compile-time constant, while still allowing the class to be used at runtime. class DefaultEquality implements Equality { const DefaultEquality(); + @override bool equals(Object e1, Object e2) => e1 == e2; + @override int hash(Object e) => e.hashCode; + @override bool isValidKey(Object o) => true; } /// Equality of objects that compares only the identity of the objects. class IdentityEquality implements Equality { const IdentityEquality(); + @override bool equals(E e1, E e2) => identical(e1, e2); + @override int hash(E e) => identityHashCode(e); + @override bool isValidKey(Object o) => true; } @@ -108,25 +118,27 @@ class IterableEquality implements Equality> { [Equality elementEquality = const DefaultEquality()]) : _elementEquality = elementEquality; + @override bool equals(Iterable elements1, Iterable elements2) { if (identical(elements1, elements2)) return true; if (elements1 == null || elements2 == null) return false; var it1 = elements1.iterator; var it2 = elements2.iterator; while (true) { - bool hasNext = it1.moveNext(); + var hasNext = it1.moveNext(); if (hasNext != it2.moveNext()) return false; if (!hasNext) return true; if (!_elementEquality.equals(it1.current, it2.current)) return false; } } + @override int hash(Iterable elements) { if (elements == null) return null.hashCode; // Jenkins's one-at-a-time hash function. - int hash = 0; - for (E element in elements) { - int c = _elementEquality.hash(element); + var hash = 0; + for (var element in elements) { + var c = _elementEquality.hash(element); hash = (hash + c) & _HASH_MASK; hash = (hash + (hash << 10)) & _HASH_MASK; hash ^= (hash >> 6); @@ -137,6 +149,7 @@ class IterableEquality implements Equality> { return hash; } + @override bool isValidKey(Object o) => o is Iterable; } @@ -156,25 +169,27 @@ class ListEquality implements Equality> { const ListEquality([Equality elementEquality = const DefaultEquality()]) : _elementEquality = elementEquality; + @override bool equals(List list1, List list2) { if (identical(list1, list2)) return true; if (list1 == null || list2 == null) return false; - int length = list1.length; + var length = list1.length; if (length != list2.length) return false; - for (int i = 0; i < length; i++) { + for (var i = 0; i < length; i++) { if (!_elementEquality.equals(list1[i], list2[i])) return false; } return true; } + @override int hash(List list) { if (list == null) return null.hashCode; // Jenkins's one-at-a-time hash function. // This code is almost identical to the one in IterableEquality, except // that it uses indexing instead of iterating to get the elements. - int hash = 0; - for (int i = 0; i < list.length; i++) { - int c = _elementEquality.hash(list[i]); + var hash = 0; + for (var i = 0; i < list.length; i++) { + var c = _elementEquality.hash(list[i]); hash = (hash + c) & _HASH_MASK; hash = (hash + (hash << 10)) & _HASH_MASK; hash ^= (hash >> 6); @@ -185,6 +200,7 @@ class ListEquality implements Equality> { return hash; } + @override bool isValidKey(Object o) => o is List; } @@ -194,22 +210,22 @@ abstract class _UnorderedEquality> const _UnorderedEquality(this._elementEquality); + @override bool equals(T elements1, T elements2) { if (identical(elements1, elements2)) return true; if (elements1 == null || elements2 == null) return false; - HashMap counts = HashMap( + var counts = HashMap( equals: _elementEquality.equals, hashCode: _elementEquality.hash, isValidKey: _elementEquality.isValidKey); - int length = 0; + var length = 0; for (var e in elements1) { - int count = counts[e]; - if (count == null) count = 0; + var count = counts[e] ?? 0; counts[e] = count + 1; length++; } for (var e in elements2) { - int count = counts[e]; + var count = counts[e]; if (count == null || count == 0) return false; counts[e] = count - 1; length--; @@ -217,11 +233,12 @@ abstract class _UnorderedEquality> return length == 0; } + @override int hash(T elements) { if (elements == null) return null.hashCode; - int hash = 0; + var hash = 0; for (E element in elements) { - int c = _elementEquality.hash(element); + var c = _elementEquality.hash(element); hash = (hash + c) & _HASH_MASK; } hash = (hash + (hash << 3)) & _HASH_MASK; @@ -241,6 +258,7 @@ class UnorderedIterableEquality extends _UnorderedEquality> { [Equality elementEquality = const DefaultEquality()]) : super(elementEquality); + @override bool isValidKey(Object o) => o is Iterable; } @@ -260,6 +278,7 @@ class SetEquality extends _UnorderedEquality> { const SetEquality([Equality elementEquality = const DefaultEquality()]) : super(elementEquality); + @override bool isValidKey(Object o) => o is Set; } @@ -273,11 +292,13 @@ class _MapEntry { final value; _MapEntry(this.equality, this.key, this.value); + @override int get hashCode => (3 * equality._keyEquality.hash(key) + 7 * equality._valueEquality.hash(value)) & _HASH_MASK; + @override bool operator ==(Object other) => other is _MapEntry && equality._keyEquality.equals(key, other.key) && @@ -301,33 +322,34 @@ class MapEquality implements Equality> { : _keyEquality = keys, _valueEquality = values; + @override bool equals(Map map1, Map map2) { if (identical(map1, map2)) return true; if (map1 == null || map2 == null) return false; - int length = map1.length; + var length = map1.length; if (length != map2.length) return false; Map<_MapEntry, int> equalElementCounts = HashMap(); - for (K key in map1.keys) { - _MapEntry entry = _MapEntry(this, key, map1[key]); - int count = equalElementCounts[entry]; - if (count == null) count = 0; + for (var key in map1.keys) { + var entry = _MapEntry(this, key, map1[key]); + var count = equalElementCounts[entry] ?? 0; equalElementCounts[entry] = count + 1; } - for (K key in map2.keys) { - _MapEntry entry = _MapEntry(this, key, map2[key]); - int count = equalElementCounts[entry]; + for (var key in map2.keys) { + var entry = _MapEntry(this, key, map2[key]); + var count = equalElementCounts[entry]; if (count == null || count == 0) return false; equalElementCounts[entry] = count - 1; } return true; } + @override int hash(Map map) { if (map == null) return null.hashCode; - int hash = 0; - for (K key in map.keys) { - int keyHash = _keyEquality.hash(key); - int valueHash = _valueEquality.hash(map[key]); + var hash = 0; + for (var key in map.keys) { + var keyHash = _keyEquality.hash(key); + var valueHash = _valueEquality.hash(map[key]); hash = (hash + 3 * keyHash + 7 * valueHash) & _HASH_MASK; } hash = (hash + (hash << 3)) & _HASH_MASK; @@ -336,6 +358,7 @@ class MapEquality implements Equality> { return hash; } + @override bool isValidKey(Object o) => o is Map; } @@ -359,22 +382,25 @@ class MultiEquality implements Equality { const MultiEquality(Iterable> equalities) : _equalities = equalities; + @override bool equals(E e1, E e2) { - for (Equality eq in _equalities) { + for (var eq in _equalities) { if (eq.isValidKey(e1)) return eq.isValidKey(e2) && eq.equals(e1, e2); } return false; } + @override int hash(E e) { - for (Equality eq in _equalities) { + for (var eq in _equalities) { if (eq.isValidKey(e)) return eq.hash(e); } return 0; } + @override bool isValidKey(Object o) { - for (Equality eq in _equalities) { + for (var eq in _equalities) { if (eq.isValidKey(o)) return true; } return false; @@ -411,6 +437,7 @@ class DeepCollectionEquality implements Equality { : _base = base, _unordered = true; + @override bool equals(e1, e2) { if (e1 is Set) { return e2 is Set && SetEquality(this).equals(e1, e2); @@ -432,6 +459,7 @@ class DeepCollectionEquality implements Equality { return _base.equals(e1, e2); } + @override int hash(Object o) { if (o is Set) return SetEquality(this).hash(o); if (o is Map) return MapEquality(keys: this, values: this).hash(o); @@ -444,6 +472,7 @@ class DeepCollectionEquality implements Equality { return _base.hash(o); } + @override bool isValidKey(Object o) => o is Iterable || o is Map || _base.isValidKey(o); } @@ -453,10 +482,13 @@ class DeepCollectionEquality implements Equality { class CaseInsensitiveEquality implements Equality { const CaseInsensitiveEquality(); + @override bool equals(String string1, String string2) => equalsIgnoreAsciiCase(string1, string2); + @override int hash(String string) => hashIgnoreAsciiCase(string); + @override bool isValidKey(Object object) => object is String; } diff --git a/pkgs/collection/lib/src/functions.dart b/pkgs/collection/lib/src/functions.dart index 83e0493a..d200a0bb 100644 --- a/pkgs/collection/lib/src/functions.dart +++ b/pkgs/collection/lib/src/functions.dart @@ -14,7 +14,7 @@ import 'utils.dart'; /// The return values of [key] are used as the keys and the return values of /// [value] are used as the values for the new map. Map mapMap(Map map, - {K2 key(K1 key, V1 value), V2 value(K1 key, V1 value)}) { + {K2 Function(K1, V1) key, V2 Function(K1, V1) value}) { key ??= (mapKey, _) => mapKey as K2; value ??= (_, mapValue) => mapValue as V2; @@ -31,7 +31,7 @@ Map mapMap(Map map, /// select the value that goes into the resulting map based on the two original /// values. If [value] is omitted, the value from [map2] is used. Map mergeMaps(Map map1, Map map2, - {V value(V value1, V value2)}) { + {V Function(V, V) value}) { var result = Map.from(map1); if (value == null) return result..addAll(map2); @@ -47,7 +47,7 @@ Map mergeMaps(Map map1, Map map2, /// Returns a map from keys computed by [key] to a list of all values for which /// [key] returns that key. The values appear in the list in the same relative /// order as in [values]. -Map> groupBy(Iterable values, T key(S element)) { +Map> groupBy(Iterable values, T Function(S) key) { var map = >{}; for (var element in values) { var list = map.putIfAbsent(key(element), () => []); @@ -62,8 +62,8 @@ Map> groupBy(Iterable values, T key(S element)) { /// The values returned by [orderBy] are compared using the [compare] function. /// If [compare] is omitted, values must implement [Comparable] and they are /// compared using their [Comparable.compareTo]. -S minBy(Iterable values, T orderBy(S element), - {int compare(T value1, T value2)}) { +S minBy(Iterable values, T Function(S) orderBy, + {int Function(T, T) compare}) { compare ??= defaultCompare(); S minValue; @@ -84,8 +84,8 @@ S minBy(Iterable values, T orderBy(S element), /// The values returned by [orderBy] are compared using the [compare] function. /// If [compare] is omitted, values must implement [Comparable] and they are /// compared using their [Comparable.compareTo]. -S maxBy(Iterable values, T orderBy(S element), - {int compare(T value1, T value2)}) { +S maxBy(Iterable values, T Function(S) orderBy, + {int Function(T, T) compare}) { compare ??= defaultCompare(); S maxValue; @@ -164,7 +164,7 @@ List> stronglyConnectedComponents(Map> graph) { var lowLinks = HashMap(); var onStack = HashSet(); - strongConnect(T vertex) { + void strongConnect(T vertex) { indices[vertex] = index; lowLinks[vertex] = index; index++; @@ -182,7 +182,7 @@ List> stronglyConnectedComponents(Map> graph) { } if (lowLinks[vertex] == indices[vertex]) { - var component = Set(); + var component = {}; T neighbor; do { neighbor = stack.removeLast(); diff --git a/pkgs/collection/lib/src/iterable_zip.dart b/pkgs/collection/lib/src/iterable_zip.dart index c2de80c7..db382537 100644 --- a/pkgs/collection/lib/src/iterable_zip.dart +++ b/pkgs/collection/lib/src/iterable_zip.dart @@ -2,7 +2,7 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import "dart:collection"; +import 'dart:collection'; /// Iterable that iterates over lists of values from other iterables. /// @@ -16,10 +16,11 @@ import "dart:collection"; class IterableZip extends IterableBase> { final Iterable> _iterables; - IterableZip(Iterable> iterables) : this._iterables = iterables; + IterableZip(Iterable> iterables) : _iterables = iterables; /// Returns an iterator that combines values of the iterables' iterators /// as long as they all have values. + @override Iterator> get iterator { var iterators = _iterables.map((x) => x.iterator).toList(growable: false); // TODO(lrn): Return an empty iterator directly if iterators is empty? @@ -33,20 +34,22 @@ class _IteratorZip implements Iterator> { _IteratorZip(List> iterators) : _iterators = iterators; + @override bool moveNext() { if (_iterators.isEmpty) return false; - for (int i = 0; i < _iterators.length; i++) { + for (var i = 0; i < _iterators.length; i++) { if (!_iterators[i].moveNext()) { _current = null; return false; } } _current = List(_iterators.length); - for (int i = 0; i < _iterators.length; i++) { + for (var i = 0; i < _iterators.length; i++) { _current[i] = _iterators[i].current; } return true; } + @override List get current => _current; } diff --git a/pkgs/collection/lib/src/priority_queue.dart b/pkgs/collection/lib/src/priority_queue.dart index ec2478b2..31ff828f 100644 --- a/pkgs/collection/lib/src/priority_queue.dart +++ b/pkgs/collection/lib/src/priority_queue.dart @@ -2,9 +2,9 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import "dart:collection"; +import 'dart:collection'; -import "utils.dart"; +import 'utils.dart'; /// A priority queue is a priority based work-list of elements. /// @@ -21,7 +21,7 @@ abstract class PriorityQueue { /// If [comparison] is omitted, it defaults to [Comparable.compare]. If this /// is the case, `E` must implement [Comparable], and this is checked at /// runtime for every comparison. - factory PriorityQueue([int comparison(E e1, E e2)]) = HeapPriorityQueue; + factory PriorityQueue([int Function(E, E) comparison]) = HeapPriorityQueue; /// Number of elements in the queue. int get length; @@ -144,45 +144,54 @@ class HeapPriorityQueue implements PriorityQueue { /// If [comparison] is omitted, it defaults to [Comparable.compare]. If this /// is the case, `E` must implement [Comparable], and this is checked at /// runtime for every comparison. - HeapPriorityQueue([int comparison(E e1, E e2)]) + HeapPriorityQueue([int Function(E, E) comparison]) : comparison = comparison ?? defaultCompare(); + @override void add(E element) { _add(element); } + @override void addAll(Iterable elements) { - for (E element in elements) { + for (var element in elements) { _add(element); } } + @override void clear() { _queue = const []; _length = 0; } + @override bool contains(E object) { return _locate(object) >= 0; } + @override E get first { - if (_length == 0) throw StateError("No such element"); + if (_length == 0) throw StateError('No such element'); return _queue[0]; } + @override bool get isEmpty => _length == 0; + @override bool get isNotEmpty => _length != 0; + @override int get length => _length; + @override bool remove(E element) { - int index = _locate(element); + var index = _locate(element); if (index < 0) return false; - E last = _removeLast(); + var last = _removeLast(); if (index < _length) { - int comp = comparison(last, element); + var comp = comparison(last, element); if (comp <= 0) { _bubbleUp(last, index); } else { @@ -192,34 +201,39 @@ class HeapPriorityQueue implements PriorityQueue { return true; } + @override Iterable removeAll() { - List result = _queue; - int length = _length; + var result = _queue; + var length = _length; _queue = const []; _length = 0; return result.take(length); } + @override E removeFirst() { - if (_length == 0) throw StateError("No such element"); - E result = _queue[0]; - E last = _removeLast(); + if (_length == 0) throw StateError('No such element'); + var result = _queue[0]; + var last = _removeLast(); if (_length > 0) { _bubbleDown(last, 0); } return result; } + @override List toList() { - List list = List()..length = _length; - list.setRange(0, _length, _queue); - list.sort(comparison); + var list = [] + ..length = _length + ..setRange(0, _length, _queue) + ..sort(comparison); return list; } + @override Set toSet() { Set set = SplayTreeSet(comparison); - for (int i = 0; i < _length; i++) { + for (var i = 0; i < _length; i++) { set.add(_queue[i]); } return set; @@ -228,6 +242,7 @@ class HeapPriorityQueue implements PriorityQueue { /// Returns some representation of the queue. /// /// The format isn't significant, and may change in the future. + @override String toString() { return _queue.take(_length).toString(); } @@ -250,19 +265,19 @@ class HeapPriorityQueue implements PriorityQueue { // their left sibling is even, and the parent is found by shifting // right by one. // Valid range for position is [1.._length], inclusive. - int position = 1; + var position = 1; // Pre-order depth first search, omit child nodes if the current // node has lower priority than [object], because all nodes lower // in the heap will also have lower priority. do { - int index = position - 1; - E element = _queue[index]; - int comp = comparison(element, object); + var index = position - 1; + var element = _queue[index]; + var comp = comparison(element, object); if (comp == 0) return index; if (comp < 0) { // Element may be in subtree. // Continue with the left child, if it is there. - int leftChildPosition = position * 2; + var leftChildPosition = position * 2; if (leftChildPosition <= _length) { position = leftChildPosition; continue; @@ -282,8 +297,8 @@ class HeapPriorityQueue implements PriorityQueue { } E _removeLast() { - int newLength = _length - 1; - E last = _queue[newLength]; + var newLength = _length - 1; + var last = _queue[newLength]; _queue[newLength] = null; _length = newLength; return last; @@ -296,8 +311,8 @@ class HeapPriorityQueue implements PriorityQueue { /// parent, swap it with the parent. void _bubbleUp(E element, int index) { while (index > 0) { - int parentIndex = (index - 1) ~/ 2; - E parent = _queue[parentIndex]; + var parentIndex = (index - 1) ~/ 2; + var parent = _queue[parentIndex]; if (comparison(element, parent) > 0) break; _queue[index] = parent; index = parentIndex; @@ -311,13 +326,13 @@ class HeapPriorityQueue implements PriorityQueue { /// While the `element` has lower priority than either child, /// swap it with the highest priority child. void _bubbleDown(E element, int index) { - int rightChildIndex = index * 2 + 2; + var rightChildIndex = index * 2 + 2; while (rightChildIndex < _length) { - int leftChildIndex = rightChildIndex - 1; - E leftChild = _queue[leftChildIndex]; - E rightChild = _queue[rightChildIndex]; - int comp = comparison(leftChild, rightChild); - int minChildIndex; + var leftChildIndex = rightChildIndex - 1; + var leftChild = _queue[leftChildIndex]; + var rightChild = _queue[rightChildIndex]; + var comp = comparison(leftChild, rightChild); + var minChildIndex; E minChild; if (comp < 0) { minChild = leftChild; @@ -335,10 +350,10 @@ class HeapPriorityQueue implements PriorityQueue { index = minChildIndex; rightChildIndex = index * 2 + 2; } - int leftChildIndex = rightChildIndex - 1; + var leftChildIndex = rightChildIndex - 1; if (leftChildIndex < _length) { - E child = _queue[leftChildIndex]; - int comp = comparison(element, child); + var child = _queue[leftChildIndex]; + var comp = comparison(element, child); if (comp > 0) { _queue[index] = child; index = leftChildIndex; @@ -351,9 +366,9 @@ class HeapPriorityQueue implements PriorityQueue { /// /// Called when the list is full. void _grow() { - int newCapacity = _queue.length * 2 + 1; + var newCapacity = _queue.length * 2 + 1; if (newCapacity < _INITIAL_CAPACITY) newCapacity = _INITIAL_CAPACITY; - List newQueue = List(newCapacity); + var newQueue = List(newCapacity); newQueue.setRange(0, _length, _queue); _queue = newQueue; } diff --git a/pkgs/collection/lib/src/queue_list.dart b/pkgs/collection/lib/src/queue_list.dart index b2861d6c..eb80cbe6 100644 --- a/pkgs/collection/lib/src/queue_list.dart +++ b/pkgs/collection/lib/src/queue_list.dart @@ -52,8 +52,8 @@ class QueueList extends Object with ListMixin implements Queue { /// Create a queue initially containing the elements of [source]. factory QueueList.from(Iterable source) { if (source is List) { - int length = source.length; - QueueList queue = QueueList(length + 1); + var length = source.length; + var queue = QueueList(length + 1); assert(queue._table.length > length); var sourceList = source; queue._table.setRange(0, length, sourceList, 0); @@ -66,15 +66,17 @@ class QueueList extends Object with ListMixin implements Queue { // Collection interface. + @override void add(E element) { _add(element); } + @override void addAll(Iterable iterable) { if (iterable is List) { var list = iterable; - int addCount = list.length; - int length = this.length; + var addCount = list.length; + var length = this.length; if (length + addCount >= _table.length) { _preGrow(length + addCount); // After preGrow, all elements are at the start of the list. @@ -82,19 +84,19 @@ class QueueList extends Object with ListMixin implements Queue { _tail += addCount; } else { // Adding addCount elements won't reach _head. - int endSpace = _table.length - _tail; + var endSpace = _table.length - _tail; if (addCount < endSpace) { _table.setRange(_tail, _tail + addCount, list, 0); _tail += addCount; } else { - int preSpace = addCount - endSpace; + var preSpace = addCount - endSpace; _table.setRange(_tail, _tail + endSpace, list, 0); _table.setRange(0, preSpace, list, endSpace); _tail = preSpace; } } } else { - for (E element in iterable) { + for (var element in iterable) { _add(element); } } @@ -105,44 +107,51 @@ class QueueList extends Object with ListMixin implements Queue { @deprecated QueueList retype() => cast(); - String toString() => IterableBase.iterableToFullString(this, "{", "}"); + @override + String toString() => IterableBase.iterableToFullString(this, '{', '}'); // Queue interface. + @override void addLast(E element) { _add(element); } + @override void addFirst(E element) { _head = (_head - 1) & (_table.length - 1); _table[_head] = element; if (_head == _tail) _grow(); } + @override E removeFirst() { - if (_head == _tail) throw StateError("No element"); - E result = _table[_head]; + if (_head == _tail) throw StateError('No element'); + var result = _table[_head]; _table[_head] = null; _head = (_head + 1) & (_table.length - 1); return result; } + @override E removeLast() { - if (_head == _tail) throw StateError("No element"); + if (_head == _tail) throw StateError('No element'); _tail = (_tail - 1) & (_table.length - 1); - E result = _table[_tail]; + var result = _table[_tail]; _table[_tail] = null; return result; } // List interface. + @override int get length => (_tail - _head) & (_table.length - 1); + @override set length(int value) { - if (value < 0) throw RangeError("Length $value may not be negative."); + if (value < 0) throw RangeError('Length $value may not be negative.'); - int delta = value - length; + var delta = value - length; if (delta >= 0) { if (_table.length <= value) { _preGrow(value); @@ -151,7 +160,7 @@ class QueueList extends Object with ListMixin implements Queue { return; } - int newTail = _tail + delta; // [delta] is negative. + var newTail = _tail + delta; // [delta] is negative. if (newTail >= 0) { _table.fillRange(newTail, _tail, null); } else { @@ -162,17 +171,19 @@ class QueueList extends Object with ListMixin implements Queue { _tail = newTail; } + @override E operator [](int index) { if (index < 0 || index >= length) { - throw RangeError("Index $index must be in the range [0..$length)."); + throw RangeError('Index $index must be in the range [0..$length).'); } return _table[(_head + index) & (_table.length - 1)]; } + @override void operator []=(int index, E value) { if (index < 0 || index >= length) { - throw RangeError("Index $index must be in the range [0..$length)."); + throw RangeError('Index $index must be in the range [0..$length).'); } _table[(_head + index) & (_table.length - 1)] = value; @@ -194,7 +205,7 @@ class QueueList extends Object with ListMixin implements Queue { assert(number > 0); number = (number << 1) - 1; for (;;) { - int nextNumber = number & (number - 1); + var nextNumber = number & (number - 1); if (nextNumber == 0) return number; number = nextNumber; } @@ -209,8 +220,8 @@ class QueueList extends Object with ListMixin implements Queue { /// Grow the table when full. void _grow() { - List newTable = List(_table.length * 2); - int split = _table.length - _head; + var newTable = List(_table.length * 2); + var split = _table.length - _head; newTable.setRange(0, split, _table, _head); newTable.setRange(split, split + _head, _table, 0); _head = 0; @@ -221,11 +232,11 @@ class QueueList extends Object with ListMixin implements Queue { int _writeToList(List target) { assert(target.length >= length); if (_head <= _tail) { - int length = _tail - _head; + var length = _tail - _head; target.setRange(0, length, _table, _head); return length; } else { - int firstPartSize = _table.length - _head; + var firstPartSize = _table.length - _head; target.setRange(0, firstPartSize, _table, _head); target.setRange(firstPartSize, firstPartSize + _tail, _table, 0); return _tail + firstPartSize; @@ -239,8 +250,8 @@ class QueueList extends Object with ListMixin implements Queue { // Add 1.5x extra room to ensure that there's room for more elements after // expansion. newElementCount += newElementCount >> 1; - int newCapacity = _nextPowerOf2(newElementCount); - List newTable = List(newCapacity); + var newCapacity = _nextPowerOf2(newElementCount); + var newTable = List(newCapacity); _tail = _writeToList(newTable); _table = newTable; _head = 0; @@ -254,11 +265,15 @@ class _CastQueueList extends QueueList { _table = _delegate._table.cast(); } + @override int get _head => _delegate._head; + @override set _head(int value) => _delegate._head = value; + @override int get _tail => _delegate._tail; + @override set _tail(int value) => _delegate._tail = value; } diff --git a/pkgs/collection/lib/src/union_set.dart b/pkgs/collection/lib/src/union_set.dart index 35ec4101..09fa6cd6 100644 --- a/pkgs/collection/lib/src/union_set.dart +++ b/pkgs/collection/lib/src/union_set.dart @@ -44,10 +44,12 @@ class UnionSet extends SetBase with UnmodifiableSetMixin { UnionSet.from(Iterable> sets, {bool disjoint = false}) : this(sets.toSet(), disjoint: disjoint); + @override int get length => _disjoint ? _sets.fold(0, (length, set) => length + set.length) : _iterable.length; + @override Iterator get iterator => _iterable.iterator; /// Returns an iterable over the contents of all the sets in [this]. @@ -60,7 +62,7 @@ class UnionSet extends SetBase with UnmodifiableSetMixin { /// If the sets aren't guaranteed to be disjoint, this keeps track of the /// elements we've already emitted so that we can de-duplicate them. Iterable get _dedupIterable { - var seen = Set(); + var seen = {}; return _sets.expand((set) => set).where((element) { if (seen.contains(element)) return false; seen.add(element); @@ -68,8 +70,10 @@ class UnionSet extends SetBase with UnmodifiableSetMixin { }); } + @override bool contains(Object element) => _sets.any((set) => set.contains(element)); + @override E lookup(Object element) { if (element == null) return null; @@ -78,8 +82,9 @@ class UnionSet extends SetBase with UnmodifiableSetMixin { .firstWhere((result) => result != null, orElse: () => null); } + @override Set toSet() { - var result = Set(); + var result = {}; for (var set in _sets) { result.addAll(set); } diff --git a/pkgs/collection/lib/src/union_set_controller.dart b/pkgs/collection/lib/src/union_set_controller.dart index 8253f708..b1845303 100644 --- a/pkgs/collection/lib/src/union_set_controller.dart +++ b/pkgs/collection/lib/src/union_set_controller.dart @@ -27,7 +27,7 @@ class UnionSetController { UnionSet _set; /// The sets whose union is exposed through [set]. - final _sets = Set>(); + final _sets = >{}; /// Creates a set of sets that provides a view of the union of those sets. /// diff --git a/pkgs/collection/lib/src/unmodifiable_wrappers.dart b/pkgs/collection/lib/src/unmodifiable_wrappers.dart index 0e5c28c1..ebac05fb 100644 --- a/pkgs/collection/lib/src/unmodifiable_wrappers.dart +++ b/pkgs/collection/lib/src/unmodifiable_wrappers.dart @@ -5,7 +5,7 @@ import 'empty_unmodifiable_set.dart'; import 'wrappers.dart'; -export "dart:collection" show UnmodifiableListView, UnmodifiableMapView; +export 'dart:collection' show UnmodifiableListView, UnmodifiableMapView; /// A fixed-length list. /// @@ -27,59 +27,72 @@ class NonGrowableListView extends DelegatingList /// change the List's length. abstract class NonGrowableListMixin implements List { static T _throw() { - throw UnsupportedError("Cannot change the length of a fixed-length list"); + throw UnsupportedError('Cannot change the length of a fixed-length list'); } /// Throws an [UnsupportedError]; /// operations that change the length of the list are disallowed. + @override set length(int newLength) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the length of the list are disallowed. + @override bool add(E value) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the length of the list are disallowed. + @override void addAll(Iterable iterable) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the length of the list are disallowed. + @override void insert(int index, E element) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the length of the list are disallowed. + @override void insertAll(int index, Iterable iterable) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the length of the list are disallowed. + @override bool remove(Object value) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the length of the list are disallowed. + @override E removeAt(int index) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the length of the list are disallowed. + @override E removeLast() => _throw(); /// Throws an [UnsupportedError]; /// operations that change the length of the list are disallowed. - void removeWhere(bool test(E element)) => _throw(); + @override + void removeWhere(bool Function(E) test) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the length of the list are disallowed. - void retainWhere(bool test(E element)) => _throw(); + @override + void retainWhere(bool Function(E) test) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the length of the list are disallowed. + @override void removeRange(int start, int end) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the length of the list are disallowed. + @override void replaceRange(int start, int end, Iterable iterable) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the length of the list are disallowed. + @override void clear() => _throw(); } @@ -105,39 +118,47 @@ class UnmodifiableSetView extends DelegatingSet /// change the Set. abstract class UnmodifiableSetMixin implements Set { static T _throw() { - throw UnsupportedError("Cannot modify an unmodifiable Set"); + throw UnsupportedError('Cannot modify an unmodifiable Set'); } /// Throws an [UnsupportedError]; /// operations that change the set are disallowed. + @override bool add(E value) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the set are disallowed. + @override void addAll(Iterable elements) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the set are disallowed. + @override bool remove(Object value) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the set are disallowed. + @override void removeAll(Iterable elements) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the set are disallowed. + @override void retainAll(Iterable elements) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the set are disallowed. - void removeWhere(bool test(E element)) => _throw(); + @override + void removeWhere(bool Function(E) test) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the set are disallowed. - void retainWhere(bool test(E element)) => _throw(); + @override + void retainWhere(bool Function(E) test) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the set are disallowed. + @override void clear() => _throw(); } @@ -145,27 +166,32 @@ abstract class UnmodifiableSetMixin implements Set { /// change the Map. abstract class UnmodifiableMapMixin implements Map { static T _throw() { - throw UnsupportedError("Cannot modify an unmodifiable Map"); + throw UnsupportedError('Cannot modify an unmodifiable Map'); } /// Throws an [UnsupportedError]; /// operations that change the map are disallowed. + @override void operator []=(K key, V value) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the map are disallowed. - V putIfAbsent(K key, V ifAbsent()) => _throw(); + @override + V putIfAbsent(K key, V Function() ifAbsent) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the map are disallowed. + @override void addAll(Map other) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the map are disallowed. + @override V remove(Object key) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the map are disallowed. + @override void clear() => _throw(); /// Throws an [UnsupportedError]; diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index 236a2c97..0e9e2ba6 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -2,10 +2,10 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import "dart:collection"; -import "dart:math" as math; +import 'dart:collection'; +import 'dart:math' as math; -import "unmodifiable_wrappers.dart"; +import 'unmodifiable_wrappers.dart'; typedef _KeyForValue = K Function(V value); @@ -18,74 +18,105 @@ abstract class _DelegatingIterableBase implements Iterable { const _DelegatingIterableBase(); - bool any(bool test(E element)) => _base.any(test); + @override + bool any(bool Function(E) test) => _base.any(test); + @override Iterable cast() => _base.cast(); + @override bool contains(Object element) => _base.contains(element); + @override E elementAt(int index) => _base.elementAt(index); - bool every(bool test(E element)) => _base.every(test); + @override + bool every(bool Function(E) test) => _base.every(test); - Iterable expand(Iterable f(E element)) => _base.expand(f); + @override + Iterable expand(Iterable Function(E) f) => _base.expand(f); + @override E get first => _base.first; - E firstWhere(bool test(E element), {E orElse()}) => + @override + E firstWhere(bool Function(E) test, {E Function() orElse}) => _base.firstWhere(test, orElse: orElse); - T fold(T initialValue, T combine(T previousValue, E element)) => + @override + T fold(T initialValue, T Function(T previousValue, E element) combine) => _base.fold(initialValue, combine); + @override Iterable followedBy(Iterable other) => _base.followedBy(other); - void forEach(void f(E element)) => _base.forEach(f); + @override + void forEach(void Function(E) f) => _base.forEach(f); + @override bool get isEmpty => _base.isEmpty; + @override bool get isNotEmpty => _base.isNotEmpty; + @override Iterator get iterator => _base.iterator; - String join([String separator = ""]) => _base.join(separator); + @override + String join([String separator = '']) => _base.join(separator); + @override E get last => _base.last; - E lastWhere(bool test(E element), {E orElse()}) => + @override + E lastWhere(bool Function(E) test, {E Function() orElse}) => _base.lastWhere(test, orElse: orElse); + @override int get length => _base.length; - Iterable map(T f(E element)) => _base.map(f); + @override + Iterable map(T Function(E) f) => _base.map(f); - E reduce(E combine(E value, E element)) => _base.reduce(combine); + @override + E reduce(E Function(E value, E element) combine) => _base.reduce(combine); @deprecated Iterable retype() => cast(); + @override E get single => _base.single; - E singleWhere(bool test(E element), {E orElse()}) { + @override + E singleWhere(bool Function(E) test, {E Function() orElse}) { return _base.singleWhere(test, orElse: orElse); } + @override Iterable skip(int n) => _base.skip(n); - Iterable skipWhile(bool test(E value)) => _base.skipWhile(test); + @override + Iterable skipWhile(bool Function(E) test) => _base.skipWhile(test); + @override Iterable take(int n) => _base.take(n); - Iterable takeWhile(bool test(E value)) => _base.takeWhile(test); + @override + Iterable takeWhile(bool Function(E) test) => _base.takeWhile(test); + @override List toList({bool growable = true}) => _base.toList(growable: growable); + @override Set toSet() => _base.toSet(); - Iterable where(bool test(E element)) => _base.where(test); + @override + Iterable where(bool Function(E) test) => _base.where(test); + @override Iterable whereType() => _base.whereType(); + @override String toString() => _base.toString(); } @@ -95,6 +126,7 @@ abstract class _DelegatingIterableBase implements Iterable { /// or it can be extended to add extra functionality on top of an existing /// iterable object. class DelegatingIterable extends _DelegatingIterableBase { + @override final Iterable _base; /// Creates a wrapper that forwards operations to [base]. @@ -137,112 +169,145 @@ class DelegatingList extends DelegatingIterable implements List { List get _listBase => _base; + @override E operator [](int index) => _listBase[index]; + @override void operator []=(int index, E value) { _listBase[index] = value; } + @override List operator +(List other) => _listBase + other; + @override void add(E value) { _listBase.add(value); } + @override void addAll(Iterable iterable) { _listBase.addAll(iterable); } + @override Map asMap() => _listBase.asMap(); + @override List cast() => _listBase.cast(); + @override void clear() { _listBase.clear(); } + @override void fillRange(int start, int end, [E fillValue]) { _listBase.fillRange(start, end, fillValue); } + @override set first(E value) { - if (this.isEmpty) throw RangeError.index(0, this); + if (isEmpty) throw RangeError.index(0, this); this[0] = value; } + @override Iterable getRange(int start, int end) => _listBase.getRange(start, end); + @override int indexOf(E element, [int start = 0]) => _listBase.indexOf(element, start); - int indexWhere(bool test(E element), [int start = 0]) => + @override + int indexWhere(bool Function(E) test, [int start = 0]) => _listBase.indexWhere(test, start); + @override void insert(int index, E element) { _listBase.insert(index, element); } - insertAll(int index, Iterable iterable) { + @override + void insertAll(int index, Iterable iterable) { _listBase.insertAll(index, iterable); } + @override set last(E value) { - if (this.isEmpty) throw RangeError.index(0, this); - this[this.length - 1] = value; + if (isEmpty) throw RangeError.index(0, this); + this[length - 1] = value; } + @override int lastIndexOf(E element, [int start]) => _listBase.lastIndexOf(element, start); - int lastIndexWhere(bool test(E element), [int start]) => + @override + int lastIndexWhere(bool Function(E) test, [int start]) => _listBase.lastIndexWhere(test, start); + @override set length(int newLength) { _listBase.length = newLength; } + @override bool remove(Object value) => _listBase.remove(value); + @override E removeAt(int index) => _listBase.removeAt(index); + @override E removeLast() => _listBase.removeLast(); + @override void removeRange(int start, int end) { _listBase.removeRange(start, end); } - void removeWhere(bool test(E element)) { + @override + void removeWhere(bool Function(E) test) { _listBase.removeWhere(test); } + @override void replaceRange(int start, int end, Iterable iterable) { _listBase.replaceRange(start, end, iterable); } - void retainWhere(bool test(E element)) { + @override + void retainWhere(bool Function(E) test) { _listBase.retainWhere(test); } @deprecated + @override List retype() => cast(); + @override Iterable get reversed => _listBase.reversed; + @override void setAll(int index, Iterable iterable) { _listBase.setAll(index, iterable); } + @override void setRange(int start, int end, Iterable iterable, [int skipCount = 0]) { _listBase.setRange(start, end, iterable, skipCount); } + @override void shuffle([math.Random random]) { _listBase.shuffle(random); } - void sort([int compare(E a, E b)]) { + @override + void sort([int Function(E, E) compare]) { _listBase.sort(compare); } + @override List sublist(int start, [int end]) => _listBase.sublist(start, end); } @@ -269,49 +334,65 @@ class DelegatingSet extends DelegatingIterable implements Set { Set get _setBase => _base; + @override bool add(E value) => _setBase.add(value); + @override void addAll(Iterable elements) { _setBase.addAll(elements); } + @override Set cast() => _setBase.cast(); + @override void clear() { _setBase.clear(); } + @override bool containsAll(Iterable other) => _setBase.containsAll(other); + @override Set difference(Set other) => _setBase.difference(other); + @override Set intersection(Set other) => _setBase.intersection(other); + @override E lookup(Object element) => _setBase.lookup(element); + @override bool remove(Object value) => _setBase.remove(value); + @override void removeAll(Iterable elements) { _setBase.removeAll(elements); } - void removeWhere(bool test(E element)) { + @override + void removeWhere(bool Function(E) test) { _setBase.removeWhere(test); } + @override void retainAll(Iterable elements) { _setBase.retainAll(elements); } @deprecated + @override Set retype() => cast(); - void retainWhere(bool test(E element)) { + @override + void retainWhere(bool Function(E) test) { _setBase.retainWhere(test); } + @override Set union(Set other) => _setBase.union(other); + @override Set toSet() => DelegatingSet(_setBase.toSet()); } @@ -339,43 +420,55 @@ class DelegatingQueue extends DelegatingIterable implements Queue { Queue get _baseQueue => _base; + @override void add(E value) { _baseQueue.add(value); } + @override void addAll(Iterable iterable) { _baseQueue.addAll(iterable); } + @override void addFirst(E value) { _baseQueue.addFirst(value); } + @override void addLast(E value) { _baseQueue.addLast(value); } + @override Queue cast() => _baseQueue.cast(); + @override void clear() { _baseQueue.clear(); } + @override bool remove(Object object) => _baseQueue.remove(object); - void removeWhere(bool test(E element)) { + @override + void removeWhere(bool Function(E) test) { _baseQueue.removeWhere(test); } - void retainWhere(bool test(E element)) { + @override + void retainWhere(bool Function(E) test) { _baseQueue.retainWhere(test); } @deprecated + @override Queue retype() => cast(); + @override E removeFirst() => _baseQueue.removeFirst(); + @override E removeLast() => _baseQueue.removeLast(); } @@ -403,64 +496,87 @@ class DelegatingMap implements Map { @Deprecated('Use map.cast instead.') static Map typed(Map base) => base.cast(); + @override V operator [](Object key) => _base[key]; + @override void operator []=(K key, V value) { _base[key] = value; } + @override void addAll(Map other) { _base.addAll(other); } + @override void addEntries(Iterable> entries) { _base.addEntries(entries); } + @override void clear() { _base.clear(); } + @override Map cast() => _base.cast(); + @override bool containsKey(Object key) => _base.containsKey(key); + @override bool containsValue(Object value) => _base.containsValue(value); + @override Iterable> get entries => _base.entries; - void forEach(void f(K key, V value)) { + @override + void forEach(void Function(K, V) f) { _base.forEach(f); } + @override bool get isEmpty => _base.isEmpty; + @override bool get isNotEmpty => _base.isNotEmpty; + @override Iterable get keys => _base.keys; + @override int get length => _base.length; - Map map(MapEntry transform(K key, V value)) => + @override + Map map(MapEntry Function(K, V) transform) => _base.map(transform); - V putIfAbsent(K key, V ifAbsent()) => _base.putIfAbsent(key, ifAbsent); + @override + V putIfAbsent(K key, V Function() ifAbsent) => + _base.putIfAbsent(key, ifAbsent); + @override V remove(Object key) => _base.remove(key); - void removeWhere(bool test(K key, V value)) => _base.removeWhere(test); + @override + void removeWhere(bool Function(K, V) test) => _base.removeWhere(test); @deprecated Map retype() => cast(); + @override Iterable get values => _base.values; + @override String toString() => _base.toString(); - V update(K key, V update(V value), {V ifAbsent()}) => + @override + V update(K key, V Function(V) update, {V Function() ifAbsent}) => _base.update(key, update, ifAbsent: ifAbsent); - void updateAll(V update(K key, V value)) => _base.updateAll(update); + @override + void updateAll(V Function(K, V) update) => _base.updateAll(update); } /// An unmodifiable [Set] view of the keys of a [Map]. @@ -478,8 +594,10 @@ class MapKeySet extends _DelegatingIterableBase MapKeySet(Map base) : _baseMap = base; + @override Iterable get _base => _baseMap.keys; + @override Set cast() { if (this is MapKeySet) { return this as MapKeySet; @@ -487,16 +605,22 @@ class MapKeySet extends _DelegatingIterableBase return Set.castFrom(this); } + @override bool contains(Object element) => _baseMap.containsKey(element); + @override bool get isEmpty => _baseMap.isEmpty; + @override bool get isNotEmpty => _baseMap.isNotEmpty; + @override int get length => _baseMap.length; + @override String toString() => "{${_base.join(', ')}}"; + @override bool containsAll(Iterable other) => other.every(contains); /// Returns a new set with the the elements of [this] that are not in [other]. @@ -506,6 +630,7 @@ class MapKeySet extends _DelegatingIterableBase /// /// Note that the returned set will use the default equality operation, which /// may be different than the equality operation [this] uses. + @override Set difference(Set other) => where((element) => !other.contains(element)).toSet(); @@ -516,14 +641,17 @@ class MapKeySet extends _DelegatingIterableBase /// /// Note that the returned set will use the default equality operation, which /// may be different than the equality operation [this] uses. + @override Set intersection(Set other) => where(other.contains).toSet(); /// Throws an [UnsupportedError] since there's no corresponding method for /// [Map]s. + @override E lookup(Object element) => throw UnsupportedError("MapKeySet doesn't support lookup()."); @deprecated + @override Set retype() => Set.castFrom(this); /// Returns a new set which contains all the elements of [this] and [other]. @@ -533,6 +661,7 @@ class MapKeySet extends _DelegatingIterableBase /// /// Note that the returned set will use the default equality operation, which /// may be different than the equality operation [this] uses. + @override Set union(Set other) => toSet()..addAll(other); } @@ -566,12 +695,14 @@ class MapValueSet extends _DelegatingIterableBase implements Set { /// [keyForValue] returns the key in the map that should be associated with /// the given value. The set's notion of equality is identical to the equality /// of the return values of [keyForValue]. - MapValueSet(Map base, K keyForValue(V value)) + MapValueSet(Map base, K Function(V) keyForValue) : _baseMap = base, _keyForValue = keyForValue; + @override Iterable get _base => _baseMap.values; + @override Set cast() { if (this is Set) { return this as Set; @@ -579,6 +710,7 @@ class MapValueSet extends _DelegatingIterableBase implements Set { return Set.castFrom(this); } + @override bool contains(Object element) { if (element != null && element is! V) return false; var key = _keyForValue(element as V); @@ -586,17 +718,22 @@ class MapValueSet extends _DelegatingIterableBase implements Set { return _baseMap.containsKey(key); } + @override bool get isEmpty => _baseMap.isEmpty; + @override bool get isNotEmpty => _baseMap.isNotEmpty; + @override int get length => _baseMap.length; + @override String toString() => toSet().toString(); + @override bool add(V value) { - K key = _keyForValue(value); - bool result = false; + var key = _keyForValue(value); + var result = false; _baseMap.putIfAbsent(key, () { result = true; return value; @@ -604,10 +741,13 @@ class MapValueSet extends _DelegatingIterableBase implements Set { return result; } + @override void addAll(Iterable elements) => elements.forEach(add); + @override void clear() => _baseMap.clear(); + @override bool containsAll(Iterable other) => other.every(contains); /// Returns a new set with the the elements of [this] that are not in [other]. @@ -617,6 +757,7 @@ class MapValueSet extends _DelegatingIterableBase implements Set { /// /// Note that the returned set will use the default equality operation, which /// may be different than the equality operation [this] uses. + @override Set difference(Set other) => where((element) => !other.contains(element)).toSet(); @@ -627,8 +768,10 @@ class MapValueSet extends _DelegatingIterableBase implements Set { /// /// Note that the returned set will use the default equality operation, which /// may be different than the equality operation [this] uses. + @override Set intersection(Set other) => where(other.contains).toSet(); + @override V lookup(Object element) { if (element != null && element is! V) return null; var key = _keyForValue(element as V); @@ -636,6 +779,7 @@ class MapValueSet extends _DelegatingIterableBase implements Set { return _baseMap[key]; } + @override bool remove(Object element) { if (element != null && element is! V) return false; var key = _keyForValue(element as V); @@ -645,9 +789,11 @@ class MapValueSet extends _DelegatingIterableBase implements Set { return true; } + @override void removeAll(Iterable elements) => elements.forEach(remove); - void removeWhere(bool test(V element)) { + @override + void removeWhere(bool Function(V) test) { var toRemove = []; _baseMap.forEach((key, value) { if (test(value)) toRemove.add(key); @@ -655,6 +801,7 @@ class MapValueSet extends _DelegatingIterableBase implements Set { toRemove.forEach(_baseMap.remove); } + @override void retainAll(Iterable elements) { var valuesToRetain = Set.identity(); for (var element in elements) { @@ -672,10 +819,12 @@ class MapValueSet extends _DelegatingIterableBase implements Set { keysToRemove.forEach(_baseMap.remove); } - void retainWhere(bool test(V element)) => + @override + void retainWhere(bool Function(V) test) => removeWhere((element) => !test(element)); @deprecated + @override Set retype() => Set.castFrom(this); /// Returns a new set which contains all the elements of [this] and [other]. @@ -685,5 +834,6 @@ class MapValueSet extends _DelegatingIterableBase implements Set { /// /// Note that the returned set will use the default equality operation, which /// may be different than the equality operation [this] uses. + @override Set union(Set other) => toSet()..addAll(other); } diff --git a/pkgs/collection/lib/wrappers.dart b/pkgs/collection/lib/wrappers.dart index 13031f51..d3a2ff65 100644 --- a/pkgs/collection/lib/wrappers.dart +++ b/pkgs/collection/lib/wrappers.dart @@ -3,9 +3,9 @@ // BSD-style license that can be found in the LICENSE file. /// Import `collection.dart` instead. -@Deprecated("Will be removed in collection 2.0.0.") +@Deprecated('Will be removed in collection 2.0.0.') library dart.pkg.collection.wrappers; -export "src/canonicalized_map.dart"; -export "src/unmodifiable_wrappers.dart"; -export "src/wrappers.dart"; +export 'src/canonicalized_map.dart'; +export 'src/unmodifiable_wrappers.dart'; +export 'src/wrappers.dart'; diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 95759b86..48413daa 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,12 +1,12 @@ name: collection -version: 1.14.12 +version: 1.14.13-dev description: Collections and utilities functions and classes related to collections. author: Dart Team homepage: https://www.github.com/dart-lang/collection environment: - sdk: '>=2.0.0 <3.0.0' + sdk: '>=2.3.0 <3.0.0' dev_dependencies: pedantic: ^1.0.0 diff --git a/pkgs/collection/test/algorithms_test.dart b/pkgs/collection/test/algorithms_test.dart index 0ae0916a..0d0d4143 100644 --- a/pkgs/collection/test/algorithms_test.dart +++ b/pkgs/collection/test/algorithms_test.dart @@ -5,32 +5,32 @@ /// Tests algorithm utilities. import 'dart:math'; -import "package:collection/collection.dart"; -import "package:test/test.dart"; +import 'package:collection/collection.dart'; +import 'package:test/test.dart'; void main() { void testShuffle(List list) { - List copy = list.toList(); + var copy = list.toList(); shuffle(list); expect(UnorderedIterableEquality().equals(list, copy), isTrue); } - test("Shuffle 0", () { + test('Shuffle 0', () { testShuffle([]); }); - test("Shuffle 1", () { + test('Shuffle 1', () { testShuffle([1]); }); - test("Shuffle 3", () { + test('Shuffle 3', () { testShuffle([1, 2, 3]); }); - test("Shuffle 10", () { + test('Shuffle 10', () { testShuffle([1, 2, 3, 4, 5, 1, 3, 5, 7, 9]); }); - test("Shuffle shuffles", () { - List l = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]; - List c = l.toList(); - int count = 0; + test('Shuffle shuffles', () { + var l = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]; + var c = l.toList(); + var count = 0; do { shuffle(l); if (!const ListEquality().equals(c, l)) return; @@ -39,13 +39,13 @@ void main() { // same result every time is disappearingly tiny. count++; // If this happens even once, it's ok to report it. - print("Failed shuffle $count times"); + print('Failed shuffle $count times'); if (count == 10) fail("Shuffle didn't change order."); } while (true); }); - test("Shuffle sublist", () { - List l = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]; - List c = l.toList(); + test('Shuffle sublist', () { + var l = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]; + var c = l.toList(); shuffle(l, 4, 12); expect(const IterableEquality().equals(l.getRange(0, 4), c.getRange(0, 4)), isTrue); @@ -58,17 +58,17 @@ void main() { isTrue); }); - test("binsearch0", () { + test('binsearch0', () { expect(binarySearch([], 2), equals(-1)); }); - test("binsearch1", () { + test('binsearch1', () { expect(binarySearch([5], 2), equals(-1)); expect(binarySearch([5], 5), equals(0)); expect(binarySearch([5], 7), equals(-1)); }); - test("binsearch3", () { + test('binsearch3', () { expect(binarySearch([0, 5, 10], -1), equals(-1)); expect(binarySearch([0, 5, 10], 0), equals(0)); expect(binarySearch([0, 5, 10], 2), equals(-1)); @@ -78,18 +78,18 @@ void main() { expect(binarySearch([0, 5, 10], 12), equals(-1)); }); - test("binsearchCompare0", () { + test('binsearchCompare0', () { expect(binarySearch([], C(2), compare: compareC), equals(-1)); }); - test("binsearchCompare1", () { + test('binsearchCompare1', () { var l1 = [C(5)]; expect(binarySearch(l1, C(2), compare: compareC), equals(-1)); expect(binarySearch(l1, C(5), compare: compareC), equals(0)); expect(binarySearch(l1, C(7), compare: compareC), equals(-1)); }); - test("binsearchCompare3", () { + test('binsearchCompare3', () { var l3 = [C(0), C(5), C(10)]; expect(binarySearch(l3, C(-1), compare: compareC), equals(-1)); expect(binarySearch(l3, C(0), compare: compareC), equals(0)); @@ -100,17 +100,17 @@ void main() { expect(binarySearch(l3, C(12), compare: compareC), equals(-1)); }); - test("lowerbound0", () { + test('lowerbound0', () { expect(lowerBound([], 2), equals(0)); }); - test("lowerbound1", () { + test('lowerbound1', () { expect(lowerBound([5], 2), equals(0)); expect(lowerBound([5], 5), equals(0)); expect(lowerBound([5], 7), equals(1)); }); - test("lowerbound3", () { + test('lowerbound3', () { expect(lowerBound([0, 5, 10], -1), equals(0)); expect(lowerBound([0, 5, 10], 0), equals(0)); expect(lowerBound([0, 5, 10], 2), equals(1)); @@ -120,23 +120,23 @@ void main() { expect(lowerBound([0, 5, 10], 12), equals(3)); }); - test("lowerboundRepeat", () { + test('lowerboundRepeat', () { expect(lowerBound([5, 5, 5], 5), equals(0)); expect(lowerBound([0, 5, 5, 5, 10], 5), equals(1)); }); - test("lowerboundCompare0", () { + test('lowerboundCompare0', () { expect(lowerBound([], C(2), compare: compareC), equals(0)); }); - test("lowerboundCompare1", () { + test('lowerboundCompare1', () { var l1 = [C(5)]; expect(lowerBound(l1, C(2), compare: compareC), equals(0)); expect(lowerBound(l1, C(5), compare: compareC), equals(0)); expect(lowerBound(l1, C(7), compare: compareC), equals(1)); }); - test("lowerboundCompare3", () { + test('lowerboundCompare3', () { var l3 = [C(0), C(5), C(10)]; expect(lowerBound(l3, C(-1), compare: compareC), equals(0)); expect(lowerBound(l3, C(0), compare: compareC), equals(0)); @@ -147,29 +147,29 @@ void main() { expect(lowerBound(l3, C(12), compare: compareC), equals(3)); }); - test("lowerboundCompareRepeat", () { + test('lowerboundCompareRepeat', () { var l1 = [C(5), C(5), C(5)]; var l2 = [C(0), C(5), C(5), C(5), C(10)]; expect(lowerBound(l1, C(5), compare: compareC), equals(0)); expect(lowerBound(l2, C(5), compare: compareC), equals(1)); }); - test("insertionSortRandom", () { - Random random = Random(); - for (int i = 0; i < 25; i++) { - List list = List(i); - for (int j = 0; j < i; j++) { + test('insertionSortRandom', () { + var random = Random(); + for (var i = 0; i < 25; i++) { + var list = List(i); + for (var j = 0; j < i; j++) { list[j] = random.nextInt(25); // Expect some equal elements. } insertionSort(list); - for (int j = 1; j < i; j++) { + for (var j = 1; j < i; j++) { expect(list[j - 1], lessThanOrEqualTo(list[j])); } } }); - test("insertionSortSubRanges", () { - List l = [6, 5, 4, 3, 2, 1]; + test('insertionSortSubRanges', () { + var l = [6, 5, 4, 3, 2, 1]; insertionSort(l, start: 2, end: 4); expect(l, equals([6, 5, 3, 4, 2, 1])); insertionSort(l, start: 1, end: 1); @@ -182,8 +182,8 @@ void main() { expect(l, equals([1, 2, 3, 4, 5, 6])); }); - test("insertionSortSpecialCases", () { - List l = [6, 6, 6, 6, 6, 6]; + test('insertionSortSpecialCases', () { + var l = [6, 6, 6, 6, 6, 6]; insertionSort(l); expect(l, equals([6, 6, 6, 6, 6, 6])); @@ -192,38 +192,38 @@ void main() { expect(l, equals([0, 0, 3, 3, 6, 6])); }); - test("MergeSortRandom", () { - Random random = Random(); - for (int i = 0; i < 250; i += 1) { - List list = List(i); - for (int j = 0; j < i; j++) { + test('MergeSortRandom', () { + var random = Random(); + for (var i = 0; i < 250; i += 1) { + var list = List(i); + for (var j = 0; j < i; j++) { list[j] = random.nextInt(i); // Expect some equal elements. } mergeSort(list); - for (int j = 1; j < i; j++) { + for (var j = 1; j < i; j++) { expect(list[j - 1], lessThanOrEqualTo(list[j])); } } }); - test("MergeSortPreservesOrder", () { - Random random = Random(); + test('MergeSortPreservesOrder', () { + var random = Random(); // Small case where only insertion call is called, // larger case where the internal moving insertion sort is used // larger cases with multiple splittings, numbers just around a power of 2. - for (int size in [8, 50, 511, 512, 513]) { + for (var size in [8, 50, 511, 512, 513]) { var list = List(size); // Class OC compares using id. // With size elements with id's in the range 0..size/4, a number of - // collisions are guaranteed. These should be sorted so that the "order" + // collisions are guaranteed. These should be sorted so that the 'order' // part of the objects are still in order. - for (int i = 0; i < size; i++) { + for (var i = 0; i < size; i++) { list[i] = OC(random.nextInt(size >> 2), i); } mergeSort(list); - OC prev = list[0]; - for (int i = 1; i < size; i++) { - OC next = list[i]; + var prev = list[0]; + for (var i = 1; i < size; i++) { + var next = list[i]; expect(prev.id, lessThanOrEqualTo(next.id)); if (next.id == prev.id) { expect(prev.order, lessThanOrEqualTo(next.order)); @@ -232,13 +232,13 @@ void main() { } // Reverse compare on part of list. List copy = list.toList(); - int min = size >> 2; - int max = size - min; + var min = size >> 2; + var max = size - min; mergeSort(list, start: min, end: max, compare: (a, b) => b.compareTo(a)); prev = list[min]; - for (int i = min + 1; i < max; i++) { - OC next = list[i]; + for (var i = min + 1; i < max; i++) { + var next = list[i]; expect(prev.id, greaterThanOrEqualTo(next.id)); if (next.id == prev.id) { expect(prev.order, lessThanOrEqualTo(next.order)); @@ -252,53 +252,53 @@ void main() { } }); - test("MergeSortSpecialCases", () { - for (int size in [511, 512, 513]) { + test('MergeSortSpecialCases', () { + for (var size in [511, 512, 513]) { // All equal. - List list = List(size); - for (int i = 0; i < size; i++) { + var list = List(size); + for (var i = 0; i < size; i++) { list[i] = OC(0, i); } mergeSort(list); - for (int i = 0; i < size; i++) { + for (var i = 0; i < size; i++) { expect(list[i].order, equals(i)); } // All but one equal, first. list[0] = OC(1, 0); - for (int i = 1; i < size; i++) { + for (var i = 1; i < size; i++) { list[i] = OC(0, i); } mergeSort(list); - for (int i = 0; i < size - 1; i++) { + for (var i = 0; i < size - 1; i++) { expect(list[i].order, equals(i + 1)); } expect(list[size - 1].order, equals(0)); // All but one equal, last. - for (int i = 0; i < size - 1; i++) { + for (var i = 0; i < size - 1; i++) { list[i] = OC(0, i); } list[size - 1] = OC(-1, size - 1); mergeSort(list); expect(list[0].order, equals(size - 1)); - for (int i = 1; i < size; i++) { + for (var i = 1; i < size; i++) { expect(list[i].order, equals(i - 1)); } // Reversed. - for (int i = 0; i < size; i++) { + for (var i = 0; i < size; i++) { list[i] = OC(size - 1 - i, i); } mergeSort(list); - for (int i = 0; i < size; i++) { + for (var i = 0; i < size; i++) { expect(list[i].id, equals(i)); expect(list[i].order, equals(size - 1 - i)); } } }); - test("Reverse", () { - List l = [6, 5, 4, 3, 2, 1]; + test('Reverse', () { + var l = [6, 5, 4, 3, 2, 1]; reverse(l, 2, 4); expect(l, equals([6, 5, 3, 4, 2, 1])); reverse(l, 1, 1); @@ -323,6 +323,8 @@ class OC implements Comparable { final int id; final int order; OC(this.id, this.order); + @override int compareTo(OC other) => id - other.id; - String toString() => "OC[$id,$order]"; + @override + String toString() => 'OC[$id,$order]'; } diff --git a/pkgs/collection/test/canonicalized_map_test.dart b/pkgs/collection/test/canonicalized_map_test.dart index 4ec00546..2d42b09f 100644 --- a/pkgs/collection/test/canonicalized_map_test.dart +++ b/pkgs/collection/test/canonicalized_map_test.dart @@ -2,207 +2,207 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import "package:collection/collection.dart"; -import "package:test/test.dart"; +import 'package:collection/collection.dart'; +import 'package:test/test.dart'; void main() { - group("with an empty canonicalized map", () { + group('with an empty canonicalized map', () { CanonicalizedMap map; setUp(() { map = CanonicalizedMap(int.parse, - isValidKey: (s) => RegExp(r"^\d+$").hasMatch(s as String)); + isValidKey: (s) => RegExp(r'^\d+$').hasMatch(s as String)); }); - test("canonicalizes keys on set and get", () { - map["1"] = "value"; - expect(map["01"], equals("value")); + test('canonicalizes keys on set and get', () { + map['1'] = 'value'; + expect(map['01'], equals('value')); }); - test("get returns null for uncanonicalizable key", () { - expect(map["foo"], isNull); + test('get returns null for uncanonicalizable key', () { + expect(map['foo'], isNull); }); - test("set affects nothing for uncanonicalizable key", () { - map["foo"] = "value"; - expect(map["foo"], isNull); - expect(map.containsKey("foo"), isFalse); + test('set affects nothing for uncanonicalizable key', () { + map['foo'] = 'value'; + expect(map['foo'], isNull); + expect(map.containsKey('foo'), isFalse); expect(map.length, equals(0)); }); - test("canonicalizes keys for addAll", () { - map.addAll({"1": "value 1", "2": "value 2", "3": "value 3"}); - expect(map["01"], equals("value 1")); - expect(map["02"], equals("value 2")); - expect(map["03"], equals("value 3")); + test('canonicalizes keys for addAll', () { + map.addAll({'1': 'value 1', '2': 'value 2', '3': 'value 3'}); + expect(map['01'], equals('value 1')); + expect(map['02'], equals('value 2')); + expect(map['03'], equals('value 3')); }); - test("uses the final value for addAll collisions", () { - map.addAll({"1": "value 1", "01": "value 2", "001": "value 3"}); + test('uses the final value for addAll collisions', () { + map.addAll({'1': 'value 1', '01': 'value 2', '001': 'value 3'}); expect(map.length, equals(1)); - expect(map["0001"], equals("value 3")); + expect(map['0001'], equals('value 3')); }); - test("clear clears the map", () { - map.addAll({"1": "value 1", "2": "value 2", "3": "value 3"}); + test('clear clears the map', () { + map.addAll({'1': 'value 1', '2': 'value 2', '3': 'value 3'}); expect(map, isNot(isEmpty)); map.clear(); expect(map, isEmpty); }); - test("canonicalizes keys for containsKey", () { - map["1"] = "value"; - expect(map.containsKey("01"), isTrue); - expect(map.containsKey("2"), isFalse); + test('canonicalizes keys for containsKey', () { + map['1'] = 'value'; + expect(map.containsKey('01'), isTrue); + expect(map.containsKey('2'), isFalse); }); - test("containsKey returns false for uncanonicalizable key", () { - expect(map.containsKey("foo"), isFalse); + test('containsKey returns false for uncanonicalizable key', () { + expect(map.containsKey('foo'), isFalse); }); - test("canonicalizes keys for putIfAbsent", () { - map["1"] = "value"; - expect(map.putIfAbsent("01", () => throw Exception("shouldn't run")), - equals("value")); - expect(map.putIfAbsent("2", () => "new value"), equals("new value")); + test('canonicalizes keys for putIfAbsent', () { + map['1'] = 'value'; + expect(map.putIfAbsent('01', () => throw Exception("shouldn't run")), + equals('value')); + expect(map.putIfAbsent('2', () => 'new value'), equals('new value')); }); - test("canonicalizes keys for remove", () { - map["1"] = "value"; - expect(map.remove("2"), isNull); - expect(map.remove("01"), equals("value")); + test('canonicalizes keys for remove', () { + map['1'] = 'value'; + expect(map.remove('2'), isNull); + expect(map.remove('01'), equals('value')); expect(map, isEmpty); }); - test("remove returns null for uncanonicalizable key", () { - expect(map.remove("foo"), isNull); + test('remove returns null for uncanonicalizable key', () { + expect(map.remove('foo'), isNull); }); - test("containsValue returns whether a value is in the map", () { - map["1"] = "value"; - expect(map.containsValue("value"), isTrue); - expect(map.containsValue("not value"), isFalse); + test('containsValue returns whether a value is in the map', () { + map['1'] = 'value'; + expect(map.containsValue('value'), isTrue); + expect(map.containsValue('not value'), isFalse); }); - test("isEmpty returns whether the map is empty", () { + test('isEmpty returns whether the map is empty', () { expect(map.isEmpty, isTrue); - map["1"] = "value"; + map['1'] = 'value'; expect(map.isEmpty, isFalse); - map.remove("01"); + map.remove('01'); expect(map.isEmpty, isTrue); }); test("isNotEmpty returns whether the map isn't empty", () { expect(map.isNotEmpty, isFalse); - map["1"] = "value"; + map['1'] = 'value'; expect(map.isNotEmpty, isTrue); - map.remove("01"); + map.remove('01'); expect(map.isNotEmpty, isFalse); }); - test("length returns the number of pairs in the map", () { + test('length returns the number of pairs in the map', () { expect(map.length, equals(0)); - map["1"] = "value 1"; + map['1'] = 'value 1'; expect(map.length, equals(1)); - map["01"] = "value 01"; + map['01'] = 'value 01'; expect(map.length, equals(1)); - map["02"] = "value 02"; + map['02'] = 'value 02'; expect(map.length, equals(2)); }); - test("uses original keys for keys", () { - map["001"] = "value 1"; - map["02"] = "value 2"; - expect(map.keys, equals(["001", "02"])); + test('uses original keys for keys', () { + map['001'] = 'value 1'; + map['02'] = 'value 2'; + expect(map.keys, equals(['001', '02'])); }); - test("uses original keys for forEach", () { - map["001"] = "value 1"; - map["02"] = "value 2"; + test('uses original keys for forEach', () { + map['001'] = 'value 1'; + map['02'] = 'value 2'; var keys = []; map.forEach((key, value) => keys.add(key)); - expect(keys, equals(["001", "02"])); + expect(keys, equals(['001', '02'])); }); - test("values returns all values in the map", () { + test('values returns all values in the map', () { map.addAll( - {"1": "value 1", "01": "value 01", "2": "value 2", "03": "value 03"}); + {'1': 'value 1', '01': 'value 01', '2': 'value 2', '03': 'value 03'}); - expect(map.values, equals(["value 01", "value 2", "value 03"])); + expect(map.values, equals(['value 01', 'value 2', 'value 03'])); }); - test("entries returns all key-value pairs in the map", () { + test('entries returns all key-value pairs in the map', () { map.addAll({ - "1": "value 1", - "01": "value 01", - "2": "value 2", + '1': 'value 1', + '01': 'value 01', + '2': 'value 2', }); var entries = map.entries.toList(); - expect(entries[0].key, "01"); - expect(entries[0].value, "value 01"); - expect(entries[1].key, "2"); - expect(entries[1].value, "value 2"); + expect(entries[0].key, '01'); + expect(entries[0].value, 'value 01'); + expect(entries[1].key, '2'); + expect(entries[1].value, 'value 2'); }); - test("addEntries adds key-value pairs to the map", () { + test('addEntries adds key-value pairs to the map', () { map.addEntries([ - MapEntry("1", "value 1"), - MapEntry("01", "value 01"), - MapEntry("2", "value 2"), + MapEntry('1', 'value 1'), + MapEntry('01', 'value 01'), + MapEntry('2', 'value 2'), ]); - expect(map, {"01": "value 01", "2": "value 2"}); + expect(map, {'01': 'value 01', '2': 'value 2'}); }); - test("cast returns a new map instance", () { + test('cast returns a new map instance', () { expect(map.cast(), isNot(same(map))); }); }); - group("CanonicalizedMap builds an informative string representation", () { + group('CanonicalizedMap builds an informative string representation', () { var map; setUp(() { map = CanonicalizedMap(int.parse, - isValidKey: (s) => RegExp(r"^\d+$").hasMatch(s as String)); + isValidKey: (s) => RegExp(r'^\d+$').hasMatch(s as String)); }); - test("for an empty map", () { + test('for an empty map', () { expect(map.toString(), equals('{}')); }); - test("for a map with one value", () { - map.addAll({"1": "value 1"}); + test('for a map with one value', () { + map.addAll({'1': 'value 1'}); expect(map.toString(), equals('{1: value 1}')); }); - test("for a map with multiple values", () { + test('for a map with multiple values', () { map.addAll( - {"1": "value 1", "01": "value 01", "2": "value 2", "03": "value 03"}); + {'1': 'value 1', '01': 'value 01', '2': 'value 2', '03': 'value 03'}); expect( map.toString(), equals('{01: value 01, 2: value 2, 03: value 03}')); }); - test("for a map with a loop", () { - map.addAll({"1": "value 1", "2": map}); + test('for a map with a loop', () { + map.addAll({'1': 'value 1', '2': map}); expect(map.toString(), equals('{1: value 1, 2: {...}}')); }); }); - group("CanonicalizedMap.from", () { - test("canonicalizes its keys", () { + group('CanonicalizedMap.from', () { + test('canonicalizes its keys', () { var map = CanonicalizedMap.from( - {"1": "value 1", "2": "value 2", "3": "value 3"}, int.parse); - expect(map["01"], equals("value 1")); - expect(map["02"], equals("value 2")); - expect(map["03"], equals("value 3")); + {'1': 'value 1', '2': 'value 2', '3': 'value 3'}, int.parse); + expect(map['01'], equals('value 1')); + expect(map['02'], equals('value 2')); + expect(map['03'], equals('value 3')); }); - test("uses the final value for collisions", () { + test('uses the final value for collisions', () { var map = CanonicalizedMap.from( - {"1": "value 1", "01": "value 2", "001": "value 3"}, int.parse); + {'1': 'value 1', '01': 'value 2', '001': 'value 3'}, int.parse); expect(map.length, equals(1)); - expect(map["0001"], equals("value 3")); + expect(map['0001'], equals('value 3')); }); }); } diff --git a/pkgs/collection/test/combined_wrapper/list_test.dart b/pkgs/collection/test/combined_wrapper/list_test.dart index 5bb0cb1b..2705e391 100644 --- a/pkgs/collection/test/combined_wrapper/list_test.dart +++ b/pkgs/collection/test/combined_wrapper/list_test.dart @@ -11,7 +11,7 @@ void main() { var list1 = [1, 2, 3]; var list2 = [4, 5, 6]; var list3 = [7, 8, 9]; - var concat = []..addAll(list1)..addAll(list2)..addAll(list3); + var concat = [...list1, ...list2, ...list3]; // In every way possible this should test the same as an UnmodifiableListView. common.testUnmodifiableList( @@ -52,7 +52,7 @@ void main() { listOfLists.add(list1); expect(combined, list1); listOfLists.add(list2); - expect(combined, []..addAll(list1)..addAll(list2)); + expect(combined, [...list1, ...list2]); listOfLists.clear(); expect(combined, isEmpty); }); diff --git a/pkgs/collection/test/comparators_test.dart b/pkgs/collection/test/comparators_test.dart index 6a5cce83..b8dcb3e9 100644 --- a/pkgs/collection/test/comparators_test.dart +++ b/pkgs/collection/test/comparators_test.dart @@ -2,79 +2,80 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import "package:collection/collection.dart"; -import "package:test/test.dart"; +import 'package:collection/collection.dart'; +import 'package:test/test.dart'; void main() { - List strings = [ - "", - "\x00", - " ", - "+", - "/", - "0", - "00", - "000", - "001", - "01", - "011", - "1", - "100", - "11", - "110", - "9", - ":", - "=", - "@", - "A", - "A0", - "A000A", - "A001A", - "A00A", - "A01A", - "A0A", - "A1A", - "AA", - "AAB", - "AB", - "Z", - "[", - "_", - "`", - "a", - "a0", - "a000a", - "a001a", - "a00a", - "a01a", - "a0a", - "a1a", - "aa", - "aab", - "ab", - "z", - "{", - "~" + var strings = [ + '', + '\x00', + ' ', + '+', + '/', + '0', + '00', + '000', + '001', + '01', + '011', + '1', + '100', + '11', + '110', + '9', + ':', + '=', + '@', + 'A', + 'A0', + 'A000A', + 'A001A', + 'A00A', + 'A01A', + 'A0A', + 'A1A', + 'AA', + 'AAB', + 'AB', + 'Z', + '[', + '_', + '`', + 'a', + 'a0', + 'a000a', + 'a001a', + 'a00a', + 'a01a', + 'a0a', + 'a1a', + 'aa', + 'aab', + 'ab', + 'z', + '{', + '~' ]; - List sortedBy(int compare(String a, String b)) => strings.toList() - ..shuffle() - ..sort(compare); + List sortedBy(int Function(String, String) compare) => + strings.toList() + ..shuffle() + ..sort(compare); - test("String.compareTo", () { + test('String.compareTo', () { expect(sortedBy(null), strings); }); - test("compareAsciiLowerCase", () { + test('compareAsciiLowerCase', () { expect(sortedBy(compareAsciiLowerCase), sortedBy((a, b) { - int delta = a.toLowerCase().compareTo(b.toLowerCase()); + var delta = a.toLowerCase().compareTo(b.toLowerCase()); if (delta != 0) return delta; if (a == b) return 0; return a.compareTo(b); })); }); - test("compareAsciiUpperCase", () { + test('compareAsciiUpperCase', () { expect(sortedBy(compareAsciiUpperCase), sortedBy((a, b) { - int delta = a.toUpperCase().compareTo(b.toUpperCase()); + var delta = a.toUpperCase().compareTo(b.toUpperCase()); if (delta != 0) return delta; if (a == b) return 0; return a.compareTo(b); @@ -85,19 +86,20 @@ void main() { // This will sort alphabetically (by charcode) the way digits sort // numerically, and the leading 0 means it sorts like a digit // compared to non-digits. - replaceNumbers(String string) => string.replaceAllMapped(RegExp(r"\d+"), (m) { + String replaceNumbers(String string) => + string.replaceAllMapped(RegExp(r'\d+'), (m) { var digits = m[0]; return String.fromCharCodes([0x30, int.parse(digits), digits.length]); }); - test("compareNatural", () { + test('compareNatural', () { expect(sortedBy(compareNatural), sortedBy((a, b) => replaceNumbers(a).compareTo(replaceNumbers(b)))); }); - test("compareAsciiLowerCaseNatural", () { + test('compareAsciiLowerCaseNatural', () { expect(sortedBy(compareAsciiLowerCaseNatural), sortedBy((a, b) { - int delta = replaceNumbers(a.toLowerCase()) + var delta = replaceNumbers(a.toLowerCase()) .compareTo(replaceNumbers(b.toLowerCase())); if (delta != 0) return delta; if (a == b) return 0; @@ -105,9 +107,9 @@ void main() { })); }); - test("compareAsciiUpperCaseNatural", () { + test('compareAsciiUpperCaseNatural', () { expect(sortedBy(compareAsciiUpperCaseNatural), sortedBy((a, b) { - int delta = replaceNumbers(a.toUpperCase()) + var delta = replaceNumbers(a.toUpperCase()) .compareTo(replaceNumbers(b.toUpperCase())); if (delta != 0) return delta; if (a == b) return 0; diff --git a/pkgs/collection/test/equality_map_test.dart b/pkgs/collection/test/equality_map_test.dart index 64344fe4..d3aa9fc9 100644 --- a/pkgs/collection/test/equality_map_test.dart +++ b/pkgs/collection/test/equality_map_test.dart @@ -6,7 +6,7 @@ import 'package:collection/collection.dart'; import 'package:test/test.dart'; void main() { - test("uses the given equality", () { + test('uses the given equality', () { var map = EqualityMap(const IterableEquality()); expect(map, isEmpty); @@ -21,7 +21,7 @@ void main() { expect(map, containsPair([2, 3, 4], 3)); }); - test("EqualityMap.from() prefers the lattermost equivalent key", () { + test('EqualityMap.from() prefers the lattermost equivalent key', () { var map = EqualityMap.from(const IterableEquality(), { [1, 2, 3]: 1, [2, 3, 4]: 2, diff --git a/pkgs/collection/test/equality_set_test.dart b/pkgs/collection/test/equality_set_test.dart index a99fe1f1..1022726b 100644 --- a/pkgs/collection/test/equality_set_test.dart +++ b/pkgs/collection/test/equality_set_test.dart @@ -6,7 +6,7 @@ import 'package:collection/collection.dart'; import 'package:test/test.dart'; void main() { - test("uses the given equality", () { + test('uses the given equality', () { var set = EqualitySet(const IterableEquality()); expect(set, isEmpty); @@ -27,7 +27,7 @@ void main() { expect(set, contains(same(list3))); }); - test("EqualitySet.from() prefers the lattermost equivalent value", () { + test('EqualitySet.from() prefers the lattermost equivalent value', () { var list1 = [1, 2, 3]; var list2 = [2, 3, 4]; var list3 = [1, 2, 3]; diff --git a/pkgs/collection/test/equality_test.dart b/pkgs/collection/test/equality_test.dart index 2b3a229c..b2109b6d 100644 --- a/pkgs/collection/test/equality_test.dart +++ b/pkgs/collection/test/equality_test.dart @@ -4,12 +4,13 @@ // Tests equality utilities. -import "dart:collection"; -import "package:collection/collection.dart"; -import "package:test/test.dart"; +import 'dart:collection'; -main() { - o(Comparable id) => Element(id); +import 'package:collection/collection.dart'; +import 'package:test/test.dart'; + +void main() { + Element o(Comparable id) => Element(id); // Lists that are point-wise equal, but not identical. var list1 = [o(1), o(2), o(3), o(4), o(5)]; @@ -17,13 +18,13 @@ main() { // Similar length list with equal elements in different order. var list3 = [o(1), o(3), o(5), o(4), o(2)]; - test("IterableEquality - List", () { + test('IterableEquality - List', () { expect(const IterableEquality().equals(list1, list2), isTrue); Equality iterId = const IterableEquality(IdentityEquality()); expect(iterId.equals(list1, list2), isFalse); }); - test("IterableEquality - LinkedSet", () { + test('IterableEquality - LinkedSet', () { var l1 = LinkedHashSet.from(list1); var l2 = LinkedHashSet.from(list2); expect(const IterableEquality().equals(l1, l2), isTrue); @@ -31,33 +32,33 @@ main() { expect(iterId.equals(l1, l2), isFalse); }); - test("ListEquality", () { + test('ListEquality', () { expect(const ListEquality().equals(list1, list2), isTrue); Equality listId = const ListEquality(IdentityEquality()); expect(listId.equals(list1, list2), isFalse); }); - test("ListInequality length", () { + test('ListInequality length', () { var list4 = [o(1), o(2), o(3), o(4), o(5), o(6)]; expect(const ListEquality().equals(list1, list4), isFalse); expect( const ListEquality(IdentityEquality()).equals(list1, list4), isFalse); }); - test("ListInequality value", () { + test('ListInequality value', () { var list5 = [o(1), o(2), o(3), o(4), o(6)]; expect(const ListEquality().equals(list1, list5), isFalse); expect( const ListEquality(IdentityEquality()).equals(list1, list5), isFalse); }); - test("UnorderedIterableEquality", () { + test('UnorderedIterableEquality', () { expect(const UnorderedIterableEquality().equals(list1, list3), isTrue); Equality uniterId = const UnorderedIterableEquality(IdentityEquality()); expect(uniterId.equals(list1, list3), isFalse); }); - test("UnorderedIterableInequality length", () { + test('UnorderedIterableInequality length', () { var list6 = [o(1), o(3), o(5), o(4), o(2), o(1)]; expect(const UnorderedIterableEquality().equals(list1, list6), isFalse); expect( @@ -66,7 +67,7 @@ main() { isFalse); }); - test("UnorderedIterableInequality values", () { + test('UnorderedIterableInequality values', () { var list7 = [o(1), o(3), o(5), o(4), o(6)]; expect(const UnorderedIterableEquality().equals(list1, list7), isFalse); expect( @@ -75,7 +76,7 @@ main() { isFalse); }); - test("SetEquality", () { + test('SetEquality', () { var set1 = HashSet.from(list1); var set2 = LinkedHashSet.from(list3); expect(const SetEquality().equals(set1, set2), isTrue); @@ -83,7 +84,7 @@ main() { expect(setId.equals(set1, set2), isFalse); }); - test("SetInequality length", () { + test('SetInequality length', () { var list8 = [o(1), o(3), o(5), o(4), o(2), o(6)]; var set1 = HashSet.from(list1); var set2 = LinkedHashSet.from(list8); @@ -91,7 +92,7 @@ main() { expect(const SetEquality(IdentityEquality()).equals(set1, set2), isFalse); }); - test("SetInequality value", () { + test('SetInequality value', () { var list7 = [o(1), o(3), o(5), o(4), o(6)]; var set1 = HashSet.from(list1); var set2 = LinkedHashSet.from(list7); @@ -100,32 +101,32 @@ main() { }); var map1a = { - "x": [o(1), o(2), o(3)], - "y": [true, false, null] + 'x': [o(1), o(2), o(3)], + 'y': [true, false, null] }; var map1b = { - "x": [o(4), o(5), o(6)], - "y": [false, true, null] + 'x': [o(4), o(5), o(6)], + 'y': [false, true, null] }; var map2a = { - "x": [o(3), o(2), o(1)], - "y": [false, true, null] + 'x': [o(3), o(2), o(1)], + 'y': [false, true, null] }; var map2b = { - "x": [o(6), o(5), o(4)], - "y": [null, false, true] + 'x': [o(6), o(5), o(4)], + 'y': [null, false, true] }; var l1 = [map1a, map1b]; var l2 = [map2a, map2b]; - var s1 = Set.from(l1); - var s2 = Set.from([map2b, map2a]); + var s1 = {...l1}; + var s2 = {map2b, map2a}; - test("RecursiveEquality", () { + test('RecursiveEquality', () { const unordered = UnorderedIterableEquality(); - expect(unordered.equals(map1a["x"], map2a["x"]), isTrue); - expect(unordered.equals(map1a["y"], map2a["y"]), isTrue); - expect(unordered.equals(map1b["x"], map2b["x"]), isTrue); - expect(unordered.equals(map1b["y"], map2b["y"]), isTrue); + expect(unordered.equals(map1a['x'], map2a['x']), isTrue); + expect(unordered.equals(map1a['y'], map2a['y']), isTrue); + expect(unordered.equals(map1b['x'], map2b['x']), isTrue); + expect(unordered.equals(map1b['y'], map2b['y']), isTrue); const mapval = MapEquality(values: unordered); expect(mapval.equals(map1a, map2a), isTrue); expect(mapval.equals(map1b, map2b), isTrue); @@ -135,62 +136,62 @@ main() { expect(setmapval.equals(s1, s2), isTrue); }); - test("DeepEquality", () { + test('DeepEquality', () { var colleq = const DeepCollectionEquality.unordered(); - expect(colleq.equals(map1a["x"], map2a["x"]), isTrue); - expect(colleq.equals(map1a["y"], map2a["y"]), isTrue); - expect(colleq.equals(map1b["x"], map2b["x"]), isTrue); - expect(colleq.equals(map1b["y"], map2b["y"]), isTrue); + expect(colleq.equals(map1a['x'], map2a['x']), isTrue); + expect(colleq.equals(map1a['y'], map2a['y']), isTrue); + expect(colleq.equals(map1b['x'], map2b['x']), isTrue); + expect(colleq.equals(map1b['y'], map2b['y']), isTrue); expect(colleq.equals(map1a, map2a), isTrue); expect(colleq.equals(map1b, map2b), isTrue); expect(colleq.equals(l1, l2), isTrue); expect(colleq.equals(s1, s2), isTrue); }); - test("CaseInsensitiveEquality", () { + test('CaseInsensitiveEquality', () { var equality = const CaseInsensitiveEquality(); - expect(equality.equals("foo", "foo"), isTrue); - expect(equality.equals("fOo", "FoO"), isTrue); - expect(equality.equals("FoO", "fOo"), isTrue); - expect(equality.equals("foo", "bar"), isFalse); - expect(equality.equals("fÕÕ", "fõõ"), isFalse); + expect(equality.equals('foo', 'foo'), isTrue); + expect(equality.equals('fOo', 'FoO'), isTrue); + expect(equality.equals('FoO', 'fOo'), isTrue); + expect(equality.equals('foo', 'bar'), isFalse); + expect(equality.equals('fÕÕ', 'fõõ'), isFalse); - expect(equality.hash("foo"), equals(equality.hash("foo"))); - expect(equality.hash("fOo"), equals(equality.hash("FoO"))); - expect(equality.hash("FoO"), equals(equality.hash("fOo"))); - expect(equality.hash("foo"), isNot(equals(equality.hash("bar")))); - expect(equality.hash("fÕÕ"), isNot(equals(equality.hash("fõõ")))); + expect(equality.hash('foo'), equals(equality.hash('foo'))); + expect(equality.hash('fOo'), equals(equality.hash('FoO'))); + expect(equality.hash('FoO'), equals(equality.hash('fOo'))); + expect(equality.hash('foo'), isNot(equals(equality.hash('bar')))); + expect(equality.hash('fÕÕ'), isNot(equals(equality.hash('fõõ')))); }); - group("EqualityBy should use a derived value for ", () { + group('EqualityBy should use a derived value for ', () { var firstEquality = EqualityBy, String>((e) => e.first); var firstInsensitiveEquality = EqualityBy, String>( (e) => e.first, const CaseInsensitiveEquality()); var firstObjectEquality = EqualityBy, Object>( (e) => e.first, const IterableEquality()); - test("equality", () { - expect(firstEquality.equals(["foo", "foo"], ["foo", "bar"]), isTrue); - expect(firstEquality.equals(["foo", "foo"], ["bar", "bar"]), isFalse); + test('equality', () { + expect(firstEquality.equals(['foo', 'foo'], ['foo', 'bar']), isTrue); + expect(firstEquality.equals(['foo', 'foo'], ['bar', 'bar']), isFalse); }); - test("equality with an inner equality", () { - expect(firstInsensitiveEquality.equals(["fOo"], ["FoO"]), isTrue); - expect(firstInsensitiveEquality.equals(["foo"], ["ffõõ"]), isFalse); + test('equality with an inner equality', () { + expect(firstInsensitiveEquality.equals(['fOo'], ['FoO']), isTrue); + expect(firstInsensitiveEquality.equals(['foo'], ['ffõõ']), isFalse); }); - test("hash", () { - expect(firstEquality.hash(["foo", "bar"]), "foo".hashCode); + test('hash', () { + expect(firstEquality.hash(['foo', 'bar']), 'foo'.hashCode); }); - test("hash with an inner equality", () { - expect(firstInsensitiveEquality.hash(["fOo"]), - const CaseInsensitiveEquality().hash("foo")); + test('hash with an inner equality', () { + expect(firstInsensitiveEquality.hash(['fOo']), + const CaseInsensitiveEquality().hash('foo')); }); - test("isValidKey", () { - expect(firstEquality.isValidKey(["foo"]), isTrue); - expect(firstEquality.isValidKey("foo"), isFalse); + test('isValidKey', () { + expect(firstEquality.isValidKey(['foo']), isTrue); + expect(firstEquality.isValidKey('foo'), isFalse); expect(firstEquality.isValidKey([1]), isFalse); }); @@ -200,7 +201,7 @@ main() { }); }); - test("Equality accepts null", () { + test('Equality accepts null', () { var ie = IterableEquality(); var le = ListEquality(); var se = SetEquality(); @@ -216,8 +217,8 @@ main() { expect(le.hash(null), null.hashCode); expect(se.equals(null, null), true); - expect(se.equals(Set(), null), false); - expect(se.equals(null, Set()), false); + expect(se.equals({}, null), false); + expect(se.equals(null, {}), false); expect(se.hash(null), null.hashCode); expect(me.equals(null, null), true); @@ -234,7 +235,10 @@ main() { class Element implements Comparable { final Comparable id; const Element(this.id); + @override int get hashCode => id.hashCode; + @override bool operator ==(Object other) => other is Element && id == other.id; + @override int compareTo(other) => id.compareTo(other.id); } diff --git a/pkgs/collection/test/functions_test.dart b/pkgs/collection/test/functions_test.dart index e754d541..f18ec2fe 100644 --- a/pkgs/collection/test/functions_test.dart +++ b/pkgs/collection/test/functions_test.dart @@ -2,13 +2,13 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import "package:test/test.dart"; +import 'package:test/test.dart'; -import "package:collection/collection.dart"; +import 'package:collection/collection.dart'; void main() { - group("mapMap()", () { - test("with an empty map returns an empty map", () { + group('mapMap()', () { + test('with an empty map returns an empty map', () { expect( mapMap({}, key: expectAsync2((_, __) {}, count: 0), @@ -16,77 +16,77 @@ void main() { isEmpty); }); - test("with no callbacks, returns a copy of the map", () { - var map = {"foo": 1, "bar": 2}; + test('with no callbacks, returns a copy of the map', () { + var map = {'foo': 1, 'bar': 2}; var result = mapMap(map); - expect(result, equals({"foo": 1, "bar": 2})); + expect(result, equals({'foo': 1, 'bar': 2})); // The resulting map should be a copy. - result["foo"] = 3; - expect(map, equals({"foo": 1, "bar": 2})); + result['foo'] = 3; + expect(map, equals({'foo': 1, 'bar': 2})); }); test("maps the map's keys", () { - expect(mapMap({"foo": 1, "bar": 2}, key: (key, value) => key[value]), - equals({"o": 1, "r": 2})); + expect(mapMap({'foo': 1, 'bar': 2}, key: (key, value) => key[value]), + equals({'o': 1, 'r': 2})); }); test("maps the map's values", () { - expect(mapMap({"foo": 1, "bar": 2}, value: (key, value) => key[value]), - equals({"foo": "o", "bar": "r"})); + expect(mapMap({'foo': 1, 'bar': 2}, value: (key, value) => key[value]), + equals({'foo': 'o', 'bar': 'r'})); }); test("maps both the map's keys and values", () { expect( - mapMap({"foo": 1, "bar": 2}, - key: (key, value) => "$key$value", + mapMap({'foo': 1, 'bar': 2}, + key: (key, value) => '$key$value', value: (key, value) => key[value]), - equals({"foo1": "o", "bar2": "r"})); + equals({'foo1': 'o', 'bar2': 'r'})); }); }); - group("mergeMaps()", () { - test("with empty maps returns an empty map", () { + group('mergeMaps()', () { + test('with empty maps returns an empty map', () { expect(mergeMaps({}, {}, value: expectAsync2((_, __) {}, count: 0)), isEmpty); }); - test("returns a map with all values in both input maps", () { - expect(mergeMaps({"foo": 1, "bar": 2}, {"baz": 3, "qux": 4}), - equals({"foo": 1, "bar": 2, "baz": 3, "qux": 4})); + test('returns a map with all values in both input maps', () { + expect(mergeMaps({'foo': 1, 'bar': 2}, {'baz': 3, 'qux': 4}), + equals({'foo': 1, 'bar': 2, 'baz': 3, 'qux': 4})); }); test("the second map's values win by default", () { - expect(mergeMaps({"foo": 1, "bar": 2}, {"bar": 3, "baz": 4}), - equals({"foo": 1, "bar": 3, "baz": 4})); + expect(mergeMaps({'foo': 1, 'bar': 2}, {'bar': 3, 'baz': 4}), + equals({'foo': 1, 'bar': 3, 'baz': 4})); }); - test("uses the callback to merge values", () { + test('uses the callback to merge values', () { expect( - mergeMaps({"foo": 1, "bar": 2}, {"bar": 3, "baz": 4}, + mergeMaps({'foo': 1, 'bar': 2}, {'bar': 3, 'baz': 4}, value: (value1, value2) => value1 + value2), - equals({"foo": 1, "bar": 5, "baz": 4})); + equals({'foo': 1, 'bar': 5, 'baz': 4})); }); }); - group("groupBy()", () { - test("returns an empty map for an empty iterable", () { + group('groupBy()', () { + test('returns an empty map for an empty iterable', () { expect(groupBy([], expectAsync1((_) {}, count: 0)), isEmpty); }); test("groups elements by the function's return value", () { expect( - groupBy(["foo", "bar", "baz", "bop", "qux"], (string) => string[1]), + groupBy(['foo', 'bar', 'baz', 'bop', 'qux'], (string) => string[1]), equals({ - "o": ["foo", "bop"], - "a": ["bar", "baz"], - "u": ["qux"] + 'o': ['foo', 'bop'], + 'a': ['bar', 'baz'], + 'u': ['qux'] })); }); }); - group("minBy()", () { - test("returns null for an empty iterable", () { + group('minBy()', () { + test('returns null for an empty iterable', () { expect( minBy([], expectAsync1((_) {}, count: 0), compare: expectAsync2((_, __) => null, count: 0)), @@ -94,35 +94,35 @@ void main() { }); test( - "returns the element for which the ordering function returns the " - "smallest value", () { + 'returns the element for which the ordering function returns the ' + 'smallest value', () { expect( minBy([ - {"foo": 3}, - {"foo": 5}, - {"foo": 4}, - {"foo": 1}, - {"foo": 2} - ], (map) => map["foo"]), - equals({"foo": 1})); + {'foo': 3}, + {'foo': 5}, + {'foo': 4}, + {'foo': 1}, + {'foo': 2} + ], (map) => map['foo']), + equals({'foo': 1})); }); - test("uses a custom comparator if provided", () { + test('uses a custom comparator if provided', () { expect( minBy, Map>([ - {"foo": 3}, - {"foo": 5}, - {"foo": 4}, - {"foo": 1}, - {"foo": 2} + {'foo': 3}, + {'foo': 5}, + {'foo': 4}, + {'foo': 1}, + {'foo': 2} ], (map) => map, - compare: (map1, map2) => map1["foo"].compareTo(map2["foo"])), - equals({"foo": 1})); + compare: (map1, map2) => map1['foo'].compareTo(map2['foo'])), + equals({'foo': 1})); }); }); - group("maxBy()", () { - test("returns null for an empty iterable", () { + group('maxBy()', () { + test('returns null for an empty iterable', () { expect( maxBy([], expectAsync1((_) {}, count: 0), compare: expectAsync2((_, __) => null, count: 0)), @@ -130,202 +130,202 @@ void main() { }); test( - "returns the element for which the ordering function returns the " - "largest value", () { + 'returns the element for which the ordering function returns the ' + 'largest value', () { expect( maxBy([ - {"foo": 3}, - {"foo": 5}, - {"foo": 4}, - {"foo": 1}, - {"foo": 2} - ], (map) => map["foo"]), - equals({"foo": 5})); + {'foo': 3}, + {'foo': 5}, + {'foo': 4}, + {'foo': 1}, + {'foo': 2} + ], (map) => map['foo']), + equals({'foo': 5})); }); - test("uses a custom comparator if provided", () { + test('uses a custom comparator if provided', () { expect( maxBy, Map>([ - {"foo": 3}, - {"foo": 5}, - {"foo": 4}, - {"foo": 1}, - {"foo": 2} + {'foo': 3}, + {'foo': 5}, + {'foo': 4}, + {'foo': 1}, + {'foo': 2} ], (map) => map, - compare: (map1, map2) => map1["foo"].compareTo(map2["foo"])), - equals({"foo": 5})); + compare: (map1, map2) => map1['foo'].compareTo(map2['foo'])), + equals({'foo': 5})); }); }); - group("transitiveClosure()", () { - test("returns an empty map for an empty graph", () { + group('transitiveClosure()', () { + test('returns an empty map for an empty graph', () { expect(transitiveClosure({}), isEmpty); }); - test("returns the input when there are no transitive connections", () { + test('returns the input when there are no transitive connections', () { expect( transitiveClosure({ - "foo": ["bar"], - "bar": [], - "bang": ["qux", "zap"], - "qux": [], - "zap": [] + 'foo': ['bar'], + 'bar': [], + 'bang': ['qux', 'zap'], + 'qux': [], + 'zap': [] }), equals({ - "foo": ["bar"], - "bar": [], - "bang": ["qux", "zap"], - "qux": [], - "zap": [] + 'foo': ['bar'], + 'bar': [], + 'bang': ['qux', 'zap'], + 'qux': [], + 'zap': [] })); }); - test("flattens transitive connections", () { + test('flattens transitive connections', () { expect( transitiveClosure({ - "qux": [], - "bar": ["baz"], - "baz": ["qux"], - "foo": ["bar"] + 'qux': [], + 'bar': ['baz'], + 'baz': ['qux'], + 'foo': ['bar'] }), equals({ - "foo": ["bar", "baz", "qux"], - "bar": ["baz", "qux"], - "baz": ["qux"], - "qux": [] + 'foo': ['bar', 'baz', 'qux'], + 'bar': ['baz', 'qux'], + 'baz': ['qux'], + 'qux': [] })); }); - test("handles loops", () { + test('handles loops', () { expect( transitiveClosure({ - "foo": ["bar"], - "bar": ["baz"], - "baz": ["foo"] + 'foo': ['bar'], + 'bar': ['baz'], + 'baz': ['foo'] }), equals({ - "foo": ["bar", "baz", "foo"], - "bar": ["baz", "foo", "bar"], - "baz": ["foo", "bar", "baz"] + 'foo': ['bar', 'baz', 'foo'], + 'bar': ['baz', 'foo', 'bar'], + 'baz': ['foo', 'bar', 'baz'] })); }); }); - group("stronglyConnectedComponents()", () { - test("returns an empty list for an empty graph", () { + group('stronglyConnectedComponents()', () { + test('returns an empty list for an empty graph', () { expect(stronglyConnectedComponents({}), isEmpty); }); - test("returns one set for a singleton graph", () { + test('returns one set for a singleton graph', () { expect( - stronglyConnectedComponents({"a": []}), + stronglyConnectedComponents({'a': []}), equals([ - Set.from(["a"]) + {'a'} ])); }); - test("returns two sets for a two-element tree", () { + test('returns two sets for a two-element tree', () { expect( stronglyConnectedComponents({ - "a": ["b"], - "b": [] + 'a': ['b'], + 'b': [] }), equals([ - Set.from(["a"]), - Set.from(["b"]) + {'a'}, + {'b'} ])); }); - test("returns one set for a two-element loop", () { + test('returns one set for a two-element loop', () { expect( stronglyConnectedComponents({ - "a": ["b"], - "b": ["a"] + 'a': ['b'], + 'b': ['a'] }), equals([ - Set.from(["a", "b"]) + {'a', 'b'} ])); }); - test("returns individual vertices for a tree", () { + test('returns individual vertices for a tree', () { expect( stronglyConnectedComponents({ - "foo": ["bar"], - "bar": ["baz", "bang"], - "baz": ["qux"], - "bang": ["zap"], - "qux": [], - "zap": [] + 'foo': ['bar'], + 'bar': ['baz', 'bang'], + 'baz': ['qux'], + 'bang': ['zap'], + 'qux': [], + 'zap': [] }), equals([ // This is expected to return *a* topological ordering, but this isn't // the only valid one. If the function implementation changes in the // future, this test may need to be updated. - Set.from(["foo"]), - Set.from(["bar"]), - Set.from(["bang"]), - Set.from(["zap"]), - Set.from(["baz"]), - Set.from(["qux"]) + {'foo'}, + {'bar'}, + {'bang'}, + {'zap'}, + {'baz'}, + {'qux'} ])); }); - test("returns a single set for a fully cyclic graph", () { + test('returns a single set for a fully cyclic graph', () { expect( stronglyConnectedComponents({ - "foo": ["bar"], - "bar": ["baz"], - "baz": ["bang"], - "bang": ["foo"] + 'foo': ['bar'], + 'bar': ['baz'], + 'baz': ['bang'], + 'bang': ['foo'] }), equals([ - Set.from(["foo", "bar", "baz", "bang"]) + {'foo', 'bar', 'baz', 'bang'} ])); }); - test("returns separate sets for each strongly connected component", () { + test('returns separate sets for each strongly connected component', () { // https://en.wikipedia.org/wiki/Strongly_connected_component#/media/File:Scc.png expect( stronglyConnectedComponents({ - "a": ["b"], - "b": ["c", "e", "f"], - "c": ["d", "g"], - "d": ["c", "h"], - "e": ["a", "f"], - "f": ["g"], - "g": ["f"], - "h": ["g", "d"] + 'a': ['b'], + 'b': ['c', 'e', 'f'], + 'c': ['d', 'g'], + 'd': ['c', 'h'], + 'e': ['a', 'f'], + 'f': ['g'], + 'g': ['f'], + 'h': ['g', 'd'] }), equals([ // This is expected to return *a* topological ordering, but this isn't // the only valid one. If the function implementation changes in the // future, this test may need to be updated. - Set.from(["a", "b", "e"]), - Set.from(["c", "d", "h"]), - Set.from(["f", "g"]), + {'a', 'b', 'e'}, + {'c', 'd', 'h'}, + {'f', 'g'}, ])); }); - test("always returns components in topological order", () { + test('always returns components in topological order', () { expect( stronglyConnectedComponents({ - "bar": ["baz", "bang"], - "zap": [], - "baz": ["qux"], - "qux": [], - "foo": ["bar"], - "bang": ["zap"] + 'bar': ['baz', 'bang'], + 'zap': [], + 'baz': ['qux'], + 'qux': [], + 'foo': ['bar'], + 'bang': ['zap'] }), equals([ // This is expected to return *a* topological ordering, but this isn't // the only valid one. If the function implementation changes in the // future, this test may need to be updated. - Set.from(["foo"]), - Set.from(["bar"]), - Set.from(["bang"]), - Set.from(["zap"]), - Set.from(["baz"]), - Set.from(["qux"]) + {'foo'}, + {'bar'}, + {'bang'}, + {'zap'}, + {'baz'}, + {'qux'} ])); }); }); diff --git a/pkgs/collection/test/ignore_ascii_case_test.dart b/pkgs/collection/test/ignore_ascii_case_test.dart index 5e3ee4fd..20ad70f5 100644 --- a/pkgs/collection/test/ignore_ascii_case_test.dart +++ b/pkgs/collection/test/ignore_ascii_case_test.dart @@ -4,51 +4,51 @@ /// Tests case-ignoring compare and equality. -import "package:collection/collection.dart"; -import "package:test/test.dart"; +import 'package:collection/collection.dart'; +import 'package:test/test.dart'; -main() { - test("equality ignore ASCII case", () { +void main() { + test('equality ignore ASCII case', () { var strings = [ - "0@`aopz[{", - "0@`aopz[{", - "0@`Aopz[{", - "0@`aOpz[{", - "0@`AOpz[{", - "0@`aoPz[{", - "0@`AoPz[{", - "0@`aOPz[{", - "0@`AOPz[{", - "0@`aopZ[{", - "0@`AopZ[{", - "0@`aOpZ[{", - "0@`AOpZ[{", - "0@`aoPZ[{", - "0@`AoPZ[{", - "0@`aOPZ[{", - "0@`AOPZ[{", + '0@`aopz[{', + '0@`aopz[{', + '0@`Aopz[{', + '0@`aOpz[{', + '0@`AOpz[{', + '0@`aoPz[{', + '0@`AoPz[{', + '0@`aOPz[{', + '0@`AOPz[{', + '0@`aopZ[{', + '0@`AopZ[{', + '0@`aOpZ[{', + '0@`AOpZ[{', + '0@`aoPZ[{', + '0@`AoPZ[{', + '0@`aOPZ[{', + '0@`AOPZ[{', ]; for (var s1 in strings) { for (var s2 in strings) { - var reason = "$s1 =?= $s2"; + var reason = '$s1 =?= $s2'; expect(equalsIgnoreAsciiCase(s1, s2), true, reason: reason); expect(hashIgnoreAsciiCase(s1), hashIgnoreAsciiCase(s2), reason: reason); } } - var upperCaseLetters = "@`abcdefghijklmnopqrstuvwxyz[{åÅ"; - var lowerCaseLetters = "@`ABCDEFGHIJKLMNOPQRSTUVWXYZ[{åÅ"; + var upperCaseLetters = '@`abcdefghijklmnopqrstuvwxyz[{åÅ'; + var lowerCaseLetters = '@`ABCDEFGHIJKLMNOPQRSTUVWXYZ[{åÅ'; expect(equalsIgnoreAsciiCase(upperCaseLetters, lowerCaseLetters), true); - testChars(String char1, String char2, bool areEqual) { + void testChars(String char1, String char2, bool areEqual) { expect(equalsIgnoreAsciiCase(char1, char2), areEqual, reason: "$char1 ${areEqual ? "=" : "!"}= $char2"); } - for (int i = 0; i < upperCaseLetters.length; i++) { - for (int j = 0; i < upperCaseLetters.length; i++) { + for (var i = 0; i < upperCaseLetters.length; i++) { + for (var j = 0; i < upperCaseLetters.length; i++) { testChars(upperCaseLetters[i], upperCaseLetters[j], i == j); testChars(lowerCaseLetters[i], upperCaseLetters[j], i == j); testChars(upperCaseLetters[i], lowerCaseLetters[j], i == j); diff --git a/pkgs/collection/test/iterable_zip_test.dart b/pkgs/collection/test/iterable_zip_test.dart index 75a448d3..991fedaa 100644 --- a/pkgs/collection/test/iterable_zip_test.dart +++ b/pkgs/collection/test/iterable_zip_test.dart @@ -2,20 +2,18 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import "dart:collection"; +import 'package:test/test.dart'; -import "package:test/test.dart"; - -import "package:collection/collection.dart"; +import 'package:collection/collection.dart'; /// Iterable like [base] except that it throws when value equals [errorValue]. Iterable iterError(Iterable base, int errorValue) { // ignore: only_throw_errors - return base.map((x) => x == errorValue ? throw "BAD" : x); + return base.map((x) => x == errorValue ? throw 'BAD' : x); } -main() { - test("Basic", () { +void main() { + test('Basic', () { expect( IterableZip([ [1, 2, 3], @@ -29,7 +27,7 @@ main() { ])); }); - test("Uneven length 1", () { + test('Uneven length 1', () { expect( IterableZip([ [1, 2, 3, 99, 100], @@ -43,7 +41,7 @@ main() { ])); }); - test("Uneven length 2", () { + test('Uneven length 2', () { expect( IterableZip([ [1, 2, 3], @@ -57,7 +55,7 @@ main() { ])); }); - test("Uneven length 3", () { + test('Uneven length 3', () { expect( IterableZip([ [1, 2, 3], @@ -71,7 +69,7 @@ main() { ])); }); - test("Uneven length 3", () { + test('Uneven length 3', () { expect( IterableZip([ [1, 2, 3, 98], @@ -85,7 +83,7 @@ main() { ])); }); - test("Empty 1", () { + test('Empty 1', () { expect( IterableZip([ [], @@ -95,7 +93,7 @@ main() { equals([])); }); - test("Empty 2", () { + test('Empty 2', () { expect( IterableZip([ [1, 2, 3], @@ -105,7 +103,7 @@ main() { equals([])); }); - test("Empty 3", () { + test('Empty 3', () { expect( IterableZip([ [1, 2, 3], @@ -115,11 +113,11 @@ main() { equals([])); }); - test("Empty source", () { + test('Empty source', () { expect(IterableZip([]), equals([])); }); - test("Single Source", () { + test('Single Source', () { expect( IterableZip([ [1, 2, 3] @@ -131,16 +129,12 @@ main() { ])); }); - test("Not-lists", () { + test('Not-lists', () { // Use other iterables than list literals. - Iterable it1 = [1, 2, 3, 4, 5, 6].where((x) => x < 4); - Set it2 = LinkedHashSet()..add(4)..add(5)..add(6); - Iterable it3 = (LinkedHashMap() - ..[7] = 0 - ..[8] = 0 - ..[9] = 0) - .keys; - Iterable allIts = Iterable.generate(3, (i) => [it1, it2, it3][i]); + var it1 = [1, 2, 3, 4, 5, 6].where((x) => x < 4); + var it2 = {4, 5, 6}; + var it3 = {7: 0, 8: 0, 9: 0}.keys; + var allIts = Iterable.generate(3, (i) => [it1, it2, it3][i]); expect( IterableZip(allIts), equals([ @@ -150,57 +144,57 @@ main() { ])); }); - test("Error 1", () { + test('Error 1', () { expect( () => IterableZip([ iterError([1, 2, 3], 2), [4, 5, 6], [7, 8, 9] ]).toList(), - throwsA(equals("BAD"))); + throwsA(equals('BAD'))); }); - test("Error 2", () { + test('Error 2', () { expect( () => IterableZip([ [1, 2, 3], iterError([4, 5, 6], 5), [7, 8, 9] ]).toList(), - throwsA(equals("BAD"))); + throwsA(equals('BAD'))); }); - test("Error 3", () { + test('Error 3', () { expect( () => IterableZip([ [1, 2, 3], [4, 5, 6], iterError([7, 8, 9], 8) ]).toList(), - throwsA(equals("BAD"))); + throwsA(equals('BAD'))); }); - test("Error at end", () { + test('Error at end', () { expect( () => IterableZip([ [1, 2, 3], iterError([4, 5, 6], 6), [7, 8, 9] ]).toList(), - throwsA(equals("BAD"))); + throwsA(equals('BAD'))); }); - test("Error before first end", () { + test('Error before first end', () { expect( () => IterableZip([ iterError([1, 2, 3, 4], 4), [4, 5, 6], [7, 8, 9] ]).toList(), - throwsA(equals("BAD"))); + throwsA(equals('BAD'))); }); - test("Error after first end", () { + test('Error after first end', () { expect( IterableZip([ [1, 2, 3], diff --git a/pkgs/collection/test/priority_queue_test.dart b/pkgs/collection/test/priority_queue_test.dart index aefd346d..03e22538 100644 --- a/pkgs/collection/test/priority_queue_test.dart +++ b/pkgs/collection/test/priority_queue_test.dart @@ -4,9 +4,9 @@ /// Tests priority queue implementations utilities. -import "package:test/test.dart"; +import 'package:test/test.dart'; -import "package:collection/src/priority_queue.dart"; +import 'package:collection/src/priority_queue.dart'; void main() { testDefault(); @@ -22,19 +22,20 @@ void testDefault() { testCustom((comparator) => PriorityQueue(comparator)); } -void testInt(PriorityQueue create()) { - for (int count in [1, 5, 127, 128]) { - testQueue("int:$count", create, List.generate(count, (x) => x), count); +void testInt(PriorityQueue Function() create) { + for (var count in [1, 5, 127, 128]) { + testQueue('int:$count', create, List.generate(count, (x) => x), count); } } -void testCustom(PriorityQueue create(int comparator(C a, C b))) { - for (int count in [1, 5, 127, 128]) { - testQueue("Custom:$count/null", () => create(null), +void testCustom( + PriorityQueue Function(int Function(C, C) comparator) create) { + for (var count in [1, 5, 127, 128]) { + testQueue('Custom:$count/null', () => create(null), List.generate(count, (x) => C(x)), C(count)); - testQueue("Custom:$count/compare", () => create(compare), + testQueue('Custom:$count/compare', () => create(compare), List.generate(count, (x) => C(x)), C(count)); - testQueue("Custom:$count/compareNeg", () => create(compareNeg), + testQueue('Custom:$count/compareNeg', () => create(compareNeg), List.generate(count, (x) => C(count - x)), C(0)); } } @@ -42,12 +43,13 @@ void testCustom(PriorityQueue create(int comparator(C a, C b))) { /// Test that a queue behaves correctly. /// /// The elements must be in priority order, from highest to lowest. -void testQueue(String name, PriorityQueue create(), List elements, notElement) { +void testQueue( + String name, PriorityQueue Function() create, List elements, notElement) { test(name, () => testQueueBody(create, elements, notElement)); } -void testQueueBody(PriorityQueue create(), List elements, notElement) { - PriorityQueue q = create(); +void testQueueBody(PriorityQueue Function() create, List elements, notElement) { + var q = create(); expect(q.isEmpty, isTrue); expect(q, hasLength(0)); expect(() { @@ -65,12 +67,12 @@ void testQueueBody(PriorityQueue create(), List elements, notElement) { expect(q.toList(), equals(elements)); expect(q.toSet().toList(), equals(elements)); - for (int i = 0; i < elements.length; i++) { + for (var i = 0; i < elements.length; i++) { expect(q.contains(elements[i]), isTrue); } expect(q.contains(notElement), isFalse); - List all = []; + var all = []; while (q.isNotEmpty) { var expected = q.first; var actual = q.removeFirst(); @@ -79,7 +81,7 @@ void testQueueBody(PriorityQueue create(), List elements, notElement) { } expect(all.length, elements.length); - for (int i = 0; i < all.length; i++) { + for (var i = 0; i < all.length; i++) { expect(all[i], same(elements[i])); } @@ -93,7 +95,7 @@ void testQueueBody(PriorityQueue create(), List elements, notElement) { testElements(); // Add elements in a non-linear order (gray order). - for (int i = 0, j = 0; i < elements.length; i++) { + for (var i = 0, j = 0; i < elements.length; i++) { int gray; do { gray = j ^ (j >> 1); @@ -106,7 +108,7 @@ void testQueueBody(PriorityQueue create(), List elements, notElement) { // Add elements by picking the middle element first, and then recursing // on each side. void addRec(int min, int max) { - int mid = min + ((max - min) >> 1); + var mid = min + ((max - min) >> 1); q.add(elements[mid]); if (mid + 1 < max) addRec(mid + 1, max); if (mid > min) addRec(min, mid); @@ -118,10 +120,10 @@ void testQueueBody(PriorityQueue create(), List elements, notElement) { // Test removeAll. q.addAll(elements); expect(q, hasLength(elements.length)); - Iterable all = q.removeAll(); + var all = q.removeAll(); expect(q.isEmpty, isTrue); expect(all, hasLength(elements.length)); - for (int i = 0; i < elements.length; i++) { + for (var i = 0; i < elements.length; i++) { expect(all, contains(elements[i])); } @@ -129,7 +131,7 @@ void testQueueBody(PriorityQueue create(), List elements, notElement) { q.addAll(elements); q.addAll(elements.reversed); expect(q, hasLength(elements.length * 2)); - for (int i = 0; i < elements.length; i++) { + for (var i = 0; i < elements.length; i++) { var element = elements[i]; expect(q.contains(element), isTrue); expect(q.removeFirst(), element); @@ -138,7 +140,7 @@ void testQueueBody(PriorityQueue create(), List elements, notElement) { // Test queue with all same element. var a = elements[0]; - for (int i = 0; i < elements.length; i++) { + for (var i = 0; i < elements.length; i++) { q.add(a); } expect(q, hasLength(elements.length)); @@ -162,8 +164,12 @@ int compareNeg(C c1, C c2) => c2.value - c1.value; class C implements Comparable { final int value; const C(this.value); + @override int get hashCode => value; + @override bool operator ==(Object other) => other is C && value == other.value; + @override int compareTo(C other) => value - other.value; - String toString() => "C($value)"; + @override + String toString() => 'C($value)'; } diff --git a/pkgs/collection/test/queue_list_test.dart b/pkgs/collection/test/queue_list_test.dart index 9522a391..4099308c 100644 --- a/pkgs/collection/test/queue_list_test.dart +++ b/pkgs/collection/test/queue_list_test.dart @@ -2,159 +2,159 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import "package:collection/collection.dart"; -import "package:test/test.dart"; +import 'package:collection/collection.dart'; +import 'package:test/test.dart'; -import "utils.dart"; +import 'utils.dart'; void main() { - group("new QueueList()", () { - test("creates an empty QueueList", () { + group('new QueueList()', () { + test('creates an empty QueueList', () { expect(QueueList(), isEmpty); }); - test("takes an initial capacity", () { + test('takes an initial capacity', () { expect(QueueList(100), isEmpty); }); }); - test("new QueueList.from() copies the contents of an iterable", () { + test('new QueueList.from() copies the contents of an iterable', () { expect(QueueList.from([1, 2, 3].skip(1)), equals([2, 3])); }); - group("add()", () { - test("adds an element to the end of the queue", () { + group('add()', () { + test('adds an element to the end of the queue', () { var queue = QueueList.from([1, 2, 3]); queue.add(4); expect(queue, equals([1, 2, 3, 4])); }); - test("expands a full queue", () { + test('expands a full queue', () { var queue = atCapacity(); queue.add(8); expect(queue, equals([1, 2, 3, 4, 5, 6, 7, 8])); }); }); - group("addAll()", () { - test("adds elements to the end of the queue", () { + group('addAll()', () { + test('adds elements to the end of the queue', () { var queue = QueueList.from([1, 2, 3]); queue.addAll([4, 5, 6]); expect(queue, equals([1, 2, 3, 4, 5, 6])); }); - test("expands a full queue", () { + test('expands a full queue', () { var queue = atCapacity(); queue.addAll([8, 9]); expect(queue, equals([1, 2, 3, 4, 5, 6, 7, 8, 9])); }); }); - group("addFirst()", () { - test("adds an element to the beginning of the queue", () { + group('addFirst()', () { + test('adds an element to the beginning of the queue', () { var queue = QueueList.from([1, 2, 3]); queue.addFirst(0); expect(queue, equals([0, 1, 2, 3])); }); - test("expands a full queue", () { + test('expands a full queue', () { var queue = atCapacity(); queue.addFirst(0); expect(queue, equals([0, 1, 2, 3, 4, 5, 6, 7])); }); }); - group("removeFirst()", () { - test("removes an element from the beginning of the queue", () { + group('removeFirst()', () { + test('removes an element from the beginning of the queue', () { var queue = QueueList.from([1, 2, 3]); expect(queue.removeFirst(), equals(1)); expect(queue, equals([2, 3])); }); test( - "removes an element from the beginning of a queue with an internal " - "gap", () { + 'removes an element from the beginning of a queue with an internal ' + 'gap', () { var queue = withInternalGap(); expect(queue.removeFirst(), equals(1)); expect(queue, equals([2, 3, 4, 5, 6, 7])); }); - test("removes an element from the beginning of a queue at capacity", () { + test('removes an element from the beginning of a queue at capacity', () { var queue = atCapacity(); expect(queue.removeFirst(), equals(1)); expect(queue, equals([2, 3, 4, 5, 6, 7])); }); - test("throws a StateError for an empty queue", () { + test('throws a StateError for an empty queue', () { expect(QueueList().removeFirst, throwsStateError); }); }); - group("removeLast()", () { - test("removes an element from the end of the queue", () { + group('removeLast()', () { + test('removes an element from the end of the queue', () { var queue = QueueList.from([1, 2, 3]); expect(queue.removeLast(), equals(3)); expect(queue, equals([1, 2])); }); - test("removes an element from the end of a queue with an internal gap", () { + test('removes an element from the end of a queue with an internal gap', () { var queue = withInternalGap(); expect(queue.removeLast(), equals(7)); expect(queue, equals([1, 2, 3, 4, 5, 6])); }); - test("removes an element from the end of a queue at capacity", () { + test('removes an element from the end of a queue at capacity', () { var queue = atCapacity(); expect(queue.removeLast(), equals(7)); expect(queue, equals([1, 2, 3, 4, 5, 6])); }); - test("throws a StateError for an empty queue", () { + test('throws a StateError for an empty queue', () { expect(QueueList().removeLast, throwsStateError); }); }); - group("length", () { - test("returns the length of a queue", () { + group('length', () { + test('returns the length of a queue', () { expect(QueueList.from([1, 2, 3]).length, equals(3)); }); - test("returns the length of a queue with an internal gap", () { + test('returns the length of a queue with an internal gap', () { expect(withInternalGap().length, equals(7)); }); - test("returns the length of a queue at capacity", () { + test('returns the length of a queue at capacity', () { expect(atCapacity().length, equals(7)); }); }); - group("length=", () { - test("shrinks a larger queue", () { + group('length=', () { + test('shrinks a larger queue', () { var queue = QueueList.from([1, 2, 3]); queue.length = 1; expect(queue, equals([1])); }); - test("grows a smaller queue", () { + test('grows a smaller queue', () { var queue = QueueList.from([1, 2, 3]); queue.length = 5; expect(queue, equals([1, 2, 3, null, null])); }); - test("throws a RangeError if length is less than 0", () { + test('throws a RangeError if length is less than 0', () { expect(() => QueueList().length = -1, throwsRangeError); }); }); - group("[]", () { - test("returns individual entries in the queue", () { + group('[]', () { + test('returns individual entries in the queue', () { var queue = QueueList.from([1, 2, 3]); expect(queue[0], equals(1)); expect(queue[1], equals(2)); expect(queue[2], equals(3)); }); - test("returns individual entries in a queue with an internal gap", () { + test('returns individual entries in a queue with an internal gap', () { var queue = withInternalGap(); expect(queue[0], equals(1)); expect(queue[1], equals(2)); @@ -165,41 +165,41 @@ void main() { expect(queue[6], equals(7)); }); - test("throws a RangeError if the index is less than 0", () { + test('throws a RangeError if the index is less than 0', () { var queue = QueueList.from([1, 2, 3]); expect(() => queue[-1], throwsRangeError); }); test( - "throws a RangeError if the index is greater than or equal to the " - "length", () { + 'throws a RangeError if the index is greater than or equal to the ' + 'length', () { var queue = QueueList.from([1, 2, 3]); expect(() => queue[3], throwsRangeError); }); }); - group("[]=", () { - test("sets individual entries in the queue", () { + group('[]=', () { + test('sets individual entries in the queue', () { var queue = QueueList.from([1, 2, 3]); - queue[0] = "a"; - queue[1] = "b"; - queue[2] = "c"; - expect(queue, equals(["a", "b", "c"])); + queue[0] = 'a'; + queue[1] = 'b'; + queue[2] = 'c'; + expect(queue, equals(['a', 'b', 'c'])); }); - test("sets individual entries in a queue with an internal gap", () { + test('sets individual entries in a queue with an internal gap', () { var queue = withInternalGap(); - queue[0] = "a"; - queue[1] = "b"; - queue[2] = "c"; - queue[3] = "d"; - queue[4] = "e"; - queue[5] = "f"; - queue[6] = "g"; - expect(queue, equals(["a", "b", "c", "d", "e", "f", "g"])); + queue[0] = 'a'; + queue[1] = 'b'; + queue[2] = 'c'; + queue[3] = 'd'; + queue[4] = 'e'; + queue[5] = 'f'; + queue[6] = 'g'; + expect(queue, equals(['a', 'b', 'c', 'd', 'e', 'f', 'g'])); }); - test("throws a RangeError if the index is less than 0", () { + test('throws a RangeError if the index is less than 0', () { var queue = QueueList.from([1, 2, 3]); expect(() { queue[-1] = 0; @@ -207,8 +207,8 @@ void main() { }); test( - "throws a RangeError if the index is greater than or equal to the " - "length", () { + 'throws a RangeError if the index is greater than or equal to the ' + 'length', () { var queue = QueueList.from([1, 2, 3]); expect(() { queue[3] = 4; @@ -216,44 +216,44 @@ void main() { }); }); - group("throws a modification error for", () { + group('throws a modification error for', () { var queue; setUp(() { queue = QueueList.from([1, 2, 3]); }); - test("add", () { + test('add', () { expect(() => queue.forEach((_) => queue.add(4)), throwsConcurrentModificationError); }); - test("addAll", () { + test('addAll', () { expect(() => queue.forEach((_) => queue.addAll([4, 5, 6])), throwsConcurrentModificationError); }); - test("addFirst", () { + test('addFirst', () { expect(() => queue.forEach((_) => queue.addFirst(0)), throwsConcurrentModificationError); }); - test("removeFirst", () { + test('removeFirst', () { expect(() => queue.forEach((_) => queue.removeFirst()), throwsConcurrentModificationError); }); - test("removeLast", () { + test('removeLast', () { expect(() => queue.forEach((_) => queue.removeLast()), throwsConcurrentModificationError); }); - test("length=", () { + test('length=', () { expect(() => queue.forEach((_) => queue.length = 1), throwsConcurrentModificationError); }); }); - test("cast does not throw on mutation when the type is valid", () { + test('cast does not throw on mutation when the type is valid', () { var patternQueue = QueueList()..addAll(['a', 'b']); var stringQueue = patternQueue.cast(); stringQueue.addAll(['c', 'd']); @@ -273,7 +273,7 @@ void main() { expect(patternQueue, stringQueue, reason: 'Should forward to original'); }); - test("cast throws on mutation when the type is not valid", () { + test('cast throws on mutation when the type is not valid', () { QueueList stringQueue = QueueList(); var numQueue = stringQueue.cast(); expect( @@ -289,7 +289,7 @@ void main() { ); }); - test("cast returns a new QueueList", () { + test('cast returns a new QueueList', () { var queue = QueueList(); expect(queue.cast(), isNot(same(queue))); }); diff --git a/pkgs/collection/test/union_set_controller_test.dart b/pkgs/collection/test/union_set_controller_test.dart index ff8c95a7..8f5ad831 100644 --- a/pkgs/collection/test/union_set_controller_test.dart +++ b/pkgs/collection/test/union_set_controller_test.dart @@ -2,32 +2,32 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import "package:test/test.dart"; +import 'package:test/test.dart'; -import "package:collection/collection.dart"; +import 'package:collection/collection.dart'; void main() { UnionSetController controller; Set innerSet; setUp(() { - innerSet = Set.from([1, 2, 3]); + innerSet = {1, 2, 3}; controller = UnionSetController()..add(innerSet); }); - test("exposes a union set", () { + test('exposes a union set', () { expect(controller.set, unorderedEquals([1, 2, 3])); - controller.add(Set.from([3, 4, 5])); + controller.add({3, 4, 5}); expect(controller.set, unorderedEquals([1, 2, 3, 4, 5])); controller.remove(innerSet); expect(controller.set, unorderedEquals([3, 4, 5])); }); - test("exposes a disjoint union set", () { + test('exposes a disjoint union set', () { expect(controller.set, unorderedEquals([1, 2, 3])); - controller.add(Set.from([4, 5, 6])); + controller.add({4, 5, 6}); expect(controller.set, unorderedEquals([1, 2, 3, 4, 5, 6])); controller.remove(innerSet); diff --git a/pkgs/collection/test/union_set_test.dart b/pkgs/collection/test/union_set_test.dart index 6624e5f8..795cf2b4 100644 --- a/pkgs/collection/test/union_set_test.dart +++ b/pkgs/collection/test/union_set_test.dart @@ -2,34 +2,34 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import "package:test/test.dart"; +import 'package:test/test.dart'; -import "package:collection/collection.dart"; +import 'package:collection/collection.dart'; void main() { - group("with an empty outer set", () { + group('with an empty outer set', () { var set; setUp(() { - set = UnionSet(Set()); + set = UnionSet({}); }); - test("length returns 0", () { + test('length returns 0', () { expect(set.length, equals(0)); }); - test("contains() returns false", () { + test('contains() returns false', () { expect(set.contains(0), isFalse); expect(set.contains(null), isFalse); - expect(set.contains("foo"), isFalse); + expect(set.contains('foo'), isFalse); }); - test("lookup() returns null", () { + test('lookup() returns null', () { expect(set.lookup(0), isNull); expect(set.lookup(null), isNull); - expect(set.lookup("foo"), isNull); + expect(set.lookup('foo'), isNull); }); - test("toSet() returns an empty set", () { + test('toSet() returns an empty set', () { expect(set.toSet(), isEmpty); expect(set.toSet(), isNot(same(set))); }); @@ -39,105 +39,105 @@ void main() { }); }); - group("with multiple disjoint sets", () { + group('with multiple disjoint sets', () { var set; setUp(() { set = UnionSet.from([ - Set.of([1, 2]), - Set.of([3, 4]), - Set.of([5]), - Set() + {1, 2}, + {3, 4}, + {5}, + {}, ], disjoint: true); }); - test("length returns the total length", () { + test('length returns the total length', () { expect(set.length, equals(5)); }); - test("contains() returns whether any set contains the element", () { + test('contains() returns whether any set contains the element', () { expect(set.contains(1), isTrue); expect(set.contains(4), isTrue); expect(set.contains(5), isTrue); expect(set.contains(6), isFalse); }); - test("lookup() returns elements that are in any set", () { + test('lookup() returns elements that are in any set', () { expect(set.lookup(1), equals(1)); expect(set.lookup(4), equals(4)); expect(set.lookup(5), equals(5)); expect(set.lookup(6), isNull); }); - test("toSet() returns the union of all the sets", () { + test('toSet() returns the union of all the sets', () { expect(set.toSet(), unorderedEquals([1, 2, 3, 4, 5])); expect(set.toSet(), isNot(same(set))); }); - test("map() maps the elements", () { + test('map() maps the elements', () { expect(set.map((i) => i * 2), unorderedEquals([2, 4, 6, 8, 10])); }); }); - group("with multiple overlapping sets", () { + group('with multiple overlapping sets', () { var set; setUp(() { set = UnionSet.from([ - Set.of([1, 2, 3]), - Set.of([3, 4]), - Set.of([5, 1]), - Set() + {1, 2, 3}, + {3, 4}, + {5, 1}, + {}, ]); }); - test("length returns the total length", () { + test('length returns the total length', () { expect(set.length, equals(5)); }); - test("contains() returns whether any set contains the element", () { + test('contains() returns whether any set contains the element', () { expect(set.contains(1), isTrue); expect(set.contains(4), isTrue); expect(set.contains(5), isTrue); expect(set.contains(6), isFalse); }); - test("lookup() returns elements that are in any set", () { + test('lookup() returns elements that are in any set', () { expect(set.lookup(1), equals(1)); expect(set.lookup(4), equals(4)); expect(set.lookup(5), equals(5)); expect(set.lookup(6), isNull); }); - test("lookup() returns the first element in an ordered context", () { + test('lookup() returns the first element in an ordered context', () { var duration1 = Duration(seconds: 0); var duration2 = Duration(seconds: 0); expect(duration1, equals(duration2)); expect(duration1, isNot(same(duration2))); var set = UnionSet.from([ - Set.of([duration1]), - Set.of([duration2]) + {duration1}, + {duration2} ]); expect(set.lookup(Duration(seconds: 0)), same(duration1)); }); - test("toSet() returns the union of all the sets", () { + test('toSet() returns the union of all the sets', () { expect(set.toSet(), unorderedEquals([1, 2, 3, 4, 5])); expect(set.toSet(), isNot(same(set))); }); - test("map() maps the elements", () { + test('map() maps the elements', () { expect(set.map((i) => i * 2), unorderedEquals([2, 4, 6, 8, 10])); }); }); - group("after an inner set was modified", () { + group('after an inner set was modified', () { var set; setUp(() { - var innerSet = Set.of([3, 7]); + var innerSet = {3, 7}; set = UnionSet.from([ - Set.of([1, 2]), - Set.of([5]), + {1, 2}, + {5}, innerSet ]); @@ -145,19 +145,19 @@ void main() { innerSet.remove(7); }); - test("length returns the total length", () { + test('length returns the total length', () { expect(set.length, equals(5)); }); - test("contains() returns true for a new element", () { + test('contains() returns true for a new element', () { expect(set.contains(4), isTrue); }); - test("contains() returns false for a removed element", () { + test('contains() returns false for a removed element', () { expect(set.contains(7), isFalse); }); - test("lookup() returns a new element", () { + test('lookup() returns a new element', () { expect(set.lookup(4), equals(4)); }); @@ -165,44 +165,44 @@ void main() { expect(set.lookup(7), isNull); }); - test("toSet() returns the union of all the sets", () { + test('toSet() returns the union of all the sets', () { expect(set.toSet(), unorderedEquals([1, 2, 3, 4, 5])); expect(set.toSet(), isNot(same(set))); }); - test("map() maps the elements", () { + test('map() maps the elements', () { expect(set.map((i) => i * 2), unorderedEquals([2, 4, 6, 8, 10])); }); }); - group("after the outer set was modified", () { + group('after the outer set was modified', () { var set; setUp(() { - var innerSet = Set.of([6]); - var outerSet = Set.of([ - Set.of([1, 2]), - Set.of([5]), + var innerSet = {6}; + var outerSet = { + {1, 2}, + {5}, innerSet - ]); + }; set = UnionSet(outerSet); outerSet.remove(innerSet); - outerSet.add(Set.of([3, 4])); + outerSet.add({3, 4}); }); - test("length returns the total length", () { + test('length returns the total length', () { expect(set.length, equals(5)); }); - test("contains() returns true for a new element", () { + test('contains() returns true for a new element', () { expect(set.contains(4), isTrue); }); - test("contains() returns false for a removed element", () { + test('contains() returns false for a removed element', () { expect(set.contains(6), isFalse); }); - test("lookup() returns a new element", () { + test('lookup() returns a new element', () { expect(set.lookup(4), equals(4)); }); @@ -210,12 +210,12 @@ void main() { expect(set.lookup(6), isNull); }); - test("toSet() returns the union of all the sets", () { + test('toSet() returns the union of all the sets', () { expect(set.toSet(), unorderedEquals([1, 2, 3, 4, 5])); expect(set.toSet(), isNot(same(set))); }); - test("map() maps the elements", () { + test('map() maps the elements', () { expect(set.map((i) => i * 2), unorderedEquals([2, 4, 6, 8, 10])); }); }); diff --git a/pkgs/collection/test/unmodifiable_collection_test.dart b/pkgs/collection/test/unmodifiable_collection_test.dart index dcc0f3be..a7abd89c 100644 --- a/pkgs/collection/test/unmodifiable_collection_test.dart +++ b/pkgs/collection/test/unmodifiable_collection_test.dart @@ -2,53 +2,53 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import "package:test/test.dart"; +import 'package:test/test.dart'; -import "package:collection/collection.dart"; +import 'package:collection/collection.dart'; // Test unmodifiable collection views. // The collections should pass through the operations that are allowed, // an throw on the ones that aren't without affecting the original. -main() { +void main() { var list = []; - testUnmodifiableList(list, UnmodifiableListView(list), "empty"); + testUnmodifiableList(list, UnmodifiableListView(list), 'empty'); list = [42]; - testUnmodifiableList(list, UnmodifiableListView(list), "single-42"); + testUnmodifiableList(list, UnmodifiableListView(list), 'single-42'); list = [7]; - testUnmodifiableList(list, UnmodifiableListView(list), "single!42"); + testUnmodifiableList(list, UnmodifiableListView(list), 'single!42'); list = [1, 42, 10]; - testUnmodifiableList(list, UnmodifiableListView(list), "three-42"); + testUnmodifiableList(list, UnmodifiableListView(list), 'three-42'); list = [1, 7, 10]; - testUnmodifiableList(list, UnmodifiableListView(list), "three!42"); + testUnmodifiableList(list, UnmodifiableListView(list), 'three!42'); list = []; - testNonGrowableList(list, NonGrowableListView(list), "empty"); + testNonGrowableList(list, NonGrowableListView(list), 'empty'); list = [42]; - testNonGrowableList(list, NonGrowableListView(list), "single-42"); + testNonGrowableList(list, NonGrowableListView(list), 'single-42'); list = [7]; - testNonGrowableList(list, NonGrowableListView(list), "single!42"); + testNonGrowableList(list, NonGrowableListView(list), 'single!42'); list = [1, 42, 10]; - testNonGrowableList(list, NonGrowableListView(list), "three-42"); + testNonGrowableList(list, NonGrowableListView(list), 'three-42'); list = [1, 7, 10]; - testNonGrowableList(list, NonGrowableListView(list), "three!42"); - - var aSet = Set(); - testUnmodifiableSet(aSet, UnmodifiableSetView(aSet), "empty"); - aSet = Set(); - testUnmodifiableSet(aSet, const UnmodifiableSetView.empty(), "const empty"); - aSet = Set.of([42]); - testUnmodifiableSet(aSet, UnmodifiableSetView(aSet), "single-42"); - aSet = Set.of([7]); - testUnmodifiableSet(aSet, UnmodifiableSetView(aSet), "single!42"); - aSet = Set.of([1, 42, 10]); - testUnmodifiableSet(aSet, UnmodifiableSetView(aSet), "three-42"); - aSet = Set.of([1, 7, 10]); - testUnmodifiableSet(aSet, UnmodifiableSetView(aSet), "three!42"); + testNonGrowableList(list, NonGrowableListView(list), 'three!42'); + + var aSet = {}; + testUnmodifiableSet(aSet, UnmodifiableSetView(aSet), 'empty'); + aSet = {}; + testUnmodifiableSet(aSet, const UnmodifiableSetView.empty(), 'const empty'); + aSet = {42}; + testUnmodifiableSet(aSet, UnmodifiableSetView(aSet), 'single-42'); + aSet = {7}; + testUnmodifiableSet(aSet, UnmodifiableSetView(aSet), 'single!42'); + aSet = {1, 42, 10}; + testUnmodifiableSet(aSet, UnmodifiableSetView(aSet), 'three-42'); + aSet = {1, 7, 10}; + testUnmodifiableSet(aSet, UnmodifiableSetView(aSet), 'three!42'); } void testUnmodifiableList(List original, List wrapped, String name) { - name = "unmodifiable-list-$name"; + name = 'unmodifiable-list-$name'; testIterable(original, wrapped, name); testReadList(original, wrapped, name); testNoWriteList(original, wrapped, name); @@ -56,7 +56,7 @@ void testUnmodifiableList(List original, List wrapped, String name) { } void testNonGrowableList(List original, List wrapped, String name) { - name = "nongrowable-list-$name"; + name = 'nongrowable-list-$name'; testIterable(original, wrapped, name); testReadList(original, wrapped, name); testWriteList(original, wrapped, name); @@ -64,23 +64,23 @@ void testNonGrowableList(List original, List wrapped, String name) { } void testUnmodifiableSet(Set original, Set wrapped, String name) { - name = "unmodifiable-set-$name"; + name = 'unmodifiable-set-$name'; testIterable(original, wrapped, name); testReadSet(original, wrapped, name); testNoChangeSet(original, wrapped, name); } void testIterable(Iterable original, Iterable wrapped, String name) { - test("$name - any", () { + test('$name - any', () { expect(wrapped.any((x) => true), equals(original.any((x) => true))); expect(wrapped.any((x) => false), equals(original.any((x) => false))); }); - test("$name - contains", () { + test('$name - contains', () { expect(wrapped.contains(0), equals(original.contains(0))); }); - test("$name - elementAt", () { + test('$name - elementAt', () { if (original.isEmpty) { expect(() => wrapped.elementAt(0), throwsRangeError); } else { @@ -88,17 +88,17 @@ void testIterable(Iterable original, Iterable wrapped, String name) { } }); - test("$name - every", () { + test('$name - every', () { expect(wrapped.every((x) => true), equals(original.every((x) => true))); expect(wrapped.every((x) => false), equals(original.every((x) => false))); }); - test("$name - expand", () { + test('$name - expand', () { expect( wrapped.expand((x) => [x, x]), equals(original.expand((x) => [x, x]))); }); - test("$name - first", () { + test('$name - first', () { if (original.isEmpty) { expect(() => wrapped.first, throwsStateError); } else { @@ -106,7 +106,7 @@ void testIterable(Iterable original, Iterable wrapped, String name) { } }); - test("$name - firstWhere", () { + test('$name - firstWhere', () { if (original.isEmpty) { expect(() => wrapped.firstWhere((_) => true), throwsStateError); } else { @@ -116,14 +116,14 @@ void testIterable(Iterable original, Iterable wrapped, String name) { expect(() => wrapped.firstWhere((_) => false), throwsStateError); }); - test("$name - fold", () { + test('$name - fold', () { expect(wrapped.fold(0, (x, y) => x + y), equals(original.fold(0, (x, y) => x + y))); }); - test("$name - forEach", () { - int wrapCtr = 0; - int origCtr = 0; + test('$name - forEach', () { + var wrapCtr = 0; + var origCtr = 0; wrapped.forEach((x) { wrapCtr += x; }); @@ -133,15 +133,15 @@ void testIterable(Iterable original, Iterable wrapped, String name) { expect(wrapCtr, equals(origCtr)); }); - test("$name - isEmpty", () { + test('$name - isEmpty', () { expect(wrapped.isEmpty, equals(original.isEmpty)); }); - test("$name - isNotEmpty", () { + test('$name - isNotEmpty', () { expect(wrapped.isNotEmpty, equals(original.isNotEmpty)); }); - test("$name - iterator", () { + test('$name - iterator', () { Iterator wrapIter = wrapped.iterator; Iterator origIter = original.iterator; while (origIter.moveNext()) { @@ -151,12 +151,12 @@ void testIterable(Iterable original, Iterable wrapped, String name) { expect(wrapIter.moveNext(), equals(false)); }); - test("$name - join", () { - expect(wrapped.join(""), equals(original.join(""))); - expect(wrapped.join("-"), equals(original.join("-"))); + test('$name - join', () { + expect(wrapped.join(''), equals(original.join(''))); + expect(wrapped.join('-'), equals(original.join('-'))); }); - test("$name - last", () { + test('$name - last', () { if (original.isEmpty) { expect(() => wrapped.last, throwsStateError); } else { @@ -164,7 +164,7 @@ void testIterable(Iterable original, Iterable wrapped, String name) { } }); - test("$name - lastWhere", () { + test('$name - lastWhere', () { if (original.isEmpty) { expect(() => wrapped.lastWhere((_) => true), throwsStateError); } else { @@ -174,15 +174,15 @@ void testIterable(Iterable original, Iterable wrapped, String name) { expect(() => wrapped.lastWhere((_) => false), throwsStateError); }); - test("$name - length", () { + test('$name - length', () { expect(wrapped.length, equals(original.length)); }); - test("$name - map", () { - expect(wrapped.map((x) => "[$x]"), equals(original.map((x) => "[$x]"))); + test('$name - map', () { + expect(wrapped.map((x) => '[$x]'), equals(original.map((x) => '[$x]'))); }); - test("$name - reduce", () { + test('$name - reduce', () { if (original.isEmpty) { expect(() => wrapped.reduce((x, y) => x + y), throwsStateError); } else { @@ -191,7 +191,7 @@ void testIterable(Iterable original, Iterable wrapped, String name) { } }); - test("$name - single", () { + test('$name - single', () { if (original.length != 1) { expect(() => wrapped.single, throwsStateError); } else { @@ -199,7 +199,7 @@ void testIterable(Iterable original, Iterable wrapped, String name) { } }); - test("$name - singleWhere", () { + test('$name - singleWhere', () { if (original.length != 1) { expect(() => wrapped.singleWhere((_) => true), throwsStateError); } else { @@ -209,13 +209,13 @@ void testIterable(Iterable original, Iterable wrapped, String name) { expect(() => wrapped.singleWhere((_) => false), throwsStateError); }); - test("$name - skip", () { + test('$name - skip', () { expect(wrapped.skip(0), orderedEquals(original.skip(0))); expect(wrapped.skip(1), orderedEquals(original.skip(1))); expect(wrapped.skip(5), orderedEquals(original.skip(5))); }); - test("$name - skipWhile", () { + test('$name - skipWhile', () { expect(wrapped.skipWhile((x) => true), orderedEquals(original.skipWhile((x) => true))); expect(wrapped.skipWhile((x) => false), @@ -224,13 +224,13 @@ void testIterable(Iterable original, Iterable wrapped, String name) { orderedEquals(original.skipWhile((x) => x != 42))); }); - test("$name - take", () { + test('$name - take', () { expect(wrapped.take(0), orderedEquals(original.take(0))); expect(wrapped.take(1), orderedEquals(original.take(1))); expect(wrapped.take(5), orderedEquals(original.take(5))); }); - test("$name - takeWhile", () { + test('$name - takeWhile', () { expect(wrapped.takeWhile((x) => true), orderedEquals(original.takeWhile((x) => true))); expect(wrapped.takeWhile((x) => false), @@ -239,17 +239,17 @@ void testIterable(Iterable original, Iterable wrapped, String name) { orderedEquals(original.takeWhile((x) => x != 42))); }); - test("$name - toList", () { + test('$name - toList', () { expect(wrapped.toList(), orderedEquals(original.toList())); expect(wrapped.toList(growable: false), orderedEquals(original.toList(growable: false))); }); - test("$name - toSet", () { + test('$name - toSet', () { expect(wrapped.toSet(), unorderedEquals(original.toSet())); }); - test("$name - where", () { + test('$name - where', () { expect( wrapped.where((x) => true), orderedEquals(original.where((x) => true))); expect(wrapped.where((x) => false), @@ -260,19 +260,19 @@ void testIterable(Iterable original, Iterable wrapped, String name) { } void testReadList(List original, List wrapped, String name) { - test("$name - length", () { + test('$name - length', () { expect(wrapped.length, equals(original.length)); }); - test("$name - isEmpty", () { + test('$name - isEmpty', () { expect(wrapped.isEmpty, equals(original.isEmpty)); }); - test("$name - isNotEmpty", () { + test('$name - isNotEmpty', () { expect(wrapped.isNotEmpty, equals(original.isNotEmpty)); }); - test("$name - []", () { + test('$name - []', () { if (original.isEmpty) { expect(() { wrapped[0]; @@ -282,16 +282,16 @@ void testReadList(List original, List wrapped, String name) { } }); - test("$name - indexOf", () { + test('$name - indexOf', () { expect(wrapped.indexOf(42), equals(original.indexOf(42))); }); - test("$name - lastIndexOf", () { + test('$name - lastIndexOf', () { expect(wrapped.lastIndexOf(42), equals(original.lastIndexOf(42))); }); - test("$name - getRange", () { - int len = original.length; + test('$name - getRange', () { + var len = original.length; expect(wrapped.getRange(0, len), equals(original.getRange(0, len))); expect(wrapped.getRange(len ~/ 2, len), equals(original.getRange(len ~/ 2, len))); @@ -299,14 +299,14 @@ void testReadList(List original, List wrapped, String name) { wrapped.getRange(0, len ~/ 2), equals(original.getRange(0, len ~/ 2))); }); - test("$name - sublist", () { - int len = original.length; + test('$name - sublist', () { + var len = original.length; expect(wrapped.sublist(0), equals(original.sublist(0))); expect(wrapped.sublist(len ~/ 2), equals(original.sublist(len ~/ 2))); expect(wrapped.sublist(0, len ~/ 2), equals(original.sublist(0, len ~/ 2))); }); - test("$name - asMap", () { + test('$name - asMap', () { expect(wrapped.asMap(), equals(original.asMap())); }); } @@ -314,7 +314,7 @@ void testReadList(List original, List wrapped, String name) { void testNoWriteList(List original, List wrapped, String name) { var copy = List.of(original); - testThrows(name, thunk) { + void testThrows(name, thunk) { test(name, () { expect(thunk, throwsUnsupportedError); // No modifications happened. @@ -322,24 +322,24 @@ void testNoWriteList(List original, List wrapped, String name) { }); } - testThrows("$name - []= throws", () { + testThrows('$name - []= throws', () { wrapped[0] = 42; }); - testThrows("$name - sort throws", () { + testThrows('$name - sort throws', () { wrapped.sort(); }); - testThrows("$name - fillRange throws", () { + testThrows('$name - fillRange throws', () { wrapped.fillRange(0, wrapped.length, 42); }); - testThrows("$name - setRange throws", () { + testThrows('$name - setRange throws', () { wrapped.setRange( 0, wrapped.length, Iterable.generate(wrapped.length, (i) => i)); }); - testThrows("$name - setAll throws", () { + testThrows('$name - setAll throws', () { wrapped.setAll(0, Iterable.generate(wrapped.length, (i) => i)); }); } @@ -347,9 +347,9 @@ void testNoWriteList(List original, List wrapped, String name) { void testWriteList(List original, List wrapped, String name) { var copy = List.of(original); - test("$name - []=", () { + test('$name - []=', () { if (original.isNotEmpty) { - int originalFirst = original[0]; + var originalFirst = original[0]; wrapped[0] = originalFirst + 1; expect(original[0], equals(originalFirst + 1)); original[0] = originalFirst; @@ -360,30 +360,30 @@ void testWriteList(List original, List wrapped, String name) { } }); - test("$name - sort", () { - List sortCopy = List.of(original); + test('$name - sort', () { + var sortCopy = List.of(original); sortCopy.sort(); wrapped.sort(); expect(original, orderedEquals(sortCopy)); original.setAll(0, copy); }); - test("$name - fillRange", () { + test('$name - fillRange', () { wrapped.fillRange(0, wrapped.length, 37); - for (int i = 0; i < original.length; i++) { + for (var i = 0; i < original.length; i++) { expect(original[i], equals(37)); } original.setAll(0, copy); }); - test("$name - setRange", () { + test('$name - setRange', () { List reverseList = original.reversed.toList(); wrapped.setRange(0, wrapped.length, reverseList); expect(original, equals(reverseList)); original.setAll(0, copy); }); - test("$name - setAll", () { + test('$name - setAll', () { List reverseList = original.reversed.toList(); wrapped.setAll(0, reverseList); expect(original, equals(reverseList)); @@ -403,55 +403,55 @@ void testNoChangeLengthList( }); } - testThrows("$name - length= throws", () { + testThrows('$name - length= throws', () { wrapped.length = 100; }); - testThrows("$name - add throws", () { + testThrows('$name - add throws', () { wrapped.add(42); }); - testThrows("$name - addAll throws", () { + testThrows('$name - addAll throws', () { wrapped.addAll([42]); }); - testThrows("$name - insert throws", () { + testThrows('$name - insert throws', () { wrapped.insert(0, 42); }); - testThrows("$name - insertAll throws", () { + testThrows('$name - insertAll throws', () { wrapped.insertAll(0, [42]); }); - testThrows("$name - remove throws", () { + testThrows('$name - remove throws', () { wrapped.remove(42); }); - testThrows("$name - removeAt throws", () { + testThrows('$name - removeAt throws', () { wrapped.removeAt(0); }); - testThrows("$name - removeLast throws", () { + testThrows('$name - removeLast throws', () { wrapped.removeLast(); }); - testThrows("$name - removeWhere throws", () { + testThrows('$name - removeWhere throws', () { wrapped.removeWhere((element) => false); }); - testThrows("$name - retainWhere throws", () { + testThrows('$name - retainWhere throws', () { wrapped.retainWhere((element) => true); }); - testThrows("$name - removeRange throws", () { + testThrows('$name - removeRange throws', () { wrapped.removeRange(0, wrapped.length); }); - testThrows("$name - replaceRange throws", () { + testThrows('$name - replaceRange throws', () { wrapped.replaceRange(0, wrapped.length, [42]); }); - testThrows("$name - clear throws", () { + testThrows('$name - clear throws', () { wrapped.clear(); }); } @@ -459,38 +459,37 @@ void testNoChangeLengthList( void testReadSet(Set original, Set wrapped, String name) { var copy = Set.of(original); - test("$name - containsAll", () { + test('$name - containsAll', () { expect(wrapped.containsAll(copy), isTrue); expect(wrapped.containsAll(copy.toList()), isTrue); expect(wrapped.containsAll([]), isTrue); expect(wrapped.containsAll([42]), equals(original.containsAll([42]))); }); - test("$name - intersection", () { - expect(wrapped.intersection(Set()), isEmpty); + test('$name - intersection', () { + expect(wrapped.intersection({}), isEmpty); expect(wrapped.intersection(copy), unorderedEquals(original)); - expect(wrapped.intersection(Set.of([42])), - Set.of(original.contains(42) ? [42] : [])); + expect( + wrapped.intersection({42}), Set.of(original.contains(42) ? [42] : [])); }); - test("$name - union", () { - expect(wrapped.union(Set()), unorderedEquals(original)); + test('$name - union', () { + expect(wrapped.union({}), unorderedEquals(original)); expect(wrapped.union(copy), unorderedEquals(original)); - expect(wrapped.union(Set.of([42])), equals(original.union(Set.of([42])))); + expect(wrapped.union({42}), equals(original.union({42}))); }); - test("$name - difference", () { - expect(wrapped.difference(Set()), unorderedEquals(original)); + test('$name - difference', () { + expect(wrapped.difference({}), unorderedEquals(original)); expect(wrapped.difference(copy), isEmpty); - expect(wrapped.difference(Set.of([42])), - equals(original.difference(Set.of([42])))); + expect(wrapped.difference({42}), equals(original.difference({42}))); }); } void testNoChangeSet(Set original, Set wrapped, String name) { var originalElements = original.toList(); - testThrows(name, thunk) { + void testThrows(name, thunk) { test(name, () { expect(thunk, throwsUnsupportedError); // No modifications happened. @@ -498,78 +497,78 @@ void testNoChangeSet(Set original, Set wrapped, String name) { }); } - testThrows("$name - add throws", () { + testThrows('$name - add throws', () { wrapped.add(42); }); - testThrows("$name - addAll throws", () { + testThrows('$name - addAll throws', () { wrapped.addAll([42]); }); - testThrows("$name - addAll empty throws", () { + testThrows('$name - addAll empty throws', () { wrapped.addAll([]); }); - testThrows("$name - remove throws", () { + testThrows('$name - remove throws', () { wrapped.remove(42); }); - testThrows("$name - removeAll throws", () { + testThrows('$name - removeAll throws', () { wrapped.removeAll([42]); }); - testThrows("$name - removeAll empty throws", () { + testThrows('$name - removeAll empty throws', () { wrapped.removeAll([]); }); - testThrows("$name - retainAll throws", () { + testThrows('$name - retainAll throws', () { wrapped.retainAll([42]); }); - testThrows("$name - removeWhere throws", () { + testThrows('$name - removeWhere throws', () { wrapped.removeWhere((_) => false); }); - testThrows("$name - retainWhere throws", () { + testThrows('$name - retainWhere throws', () { wrapped.retainWhere((_) => true); }); - testThrows("$name - clear throws", () { + testThrows('$name - clear throws', () { wrapped.clear(); }); } void testReadMap(Map original, Map wrapped, String name) { - test("$name length", () { + test('$name length', () { expect(wrapped.length, equals(original.length)); }); - test("$name isEmpty", () { + test('$name isEmpty', () { expect(wrapped.isEmpty, equals(original.isEmpty)); }); - test("$name isNotEmpty", () { + test('$name isNotEmpty', () { expect(wrapped.isNotEmpty, equals(original.isNotEmpty)); }); - test("$name operator[]", () { + test('$name operator[]', () { expect(wrapped[0], equals(original[0])); expect(wrapped[999], equals(original[999])); }); - test("$name containsKey", () { + test('$name containsKey', () { expect(wrapped.containsKey(0), equals(original.containsKey(0))); expect(wrapped.containsKey(999), equals(original.containsKey(999))); }); - test("$name containsValue", () { + test('$name containsValue', () { expect(wrapped.containsValue(0), equals(original.containsValue(0))); expect(wrapped.containsValue(999), equals(original.containsValue(999))); }); - test("$name forEach", () { - int origCnt = 0; - int wrapCnt = 0; + test('$name forEach', () { + var origCnt = 0; + var wrapCnt = 0; wrapped.forEach((k, v) { wrapCnt += 1 << k + 3 * v; }); @@ -579,19 +578,20 @@ void testReadMap(Map original, Map wrapped, String name) { expect(wrapCnt, equals(origCnt)); }); - test("$name keys", () { + test('$name keys', () { expect(wrapped.keys, orderedEquals(original.keys)); }); - test("$name values", () { + test('$name values', () { expect(wrapped.values, orderedEquals(original.values)); }); } -testNoChangeMap(Map original, Map wrapped, String name) { +void testNoChangeMap( + Map original, Map wrapped, String name) { var copy = Map.of(original); - testThrows(name, thunk) { + void testThrows(name, thunk) { test(name, () { expect(thunk, throwsUnsupportedError); // No modifications happened. @@ -599,27 +599,27 @@ testNoChangeMap(Map original, Map wrapped, String name) { }); } - testThrows("$name operator[]= throws", () { + testThrows('$name operator[]= throws', () { wrapped[0] = 42; }); - testThrows("$name putIfAbsent throws", () { + testThrows('$name putIfAbsent throws', () { wrapped.putIfAbsent(0, () => 42); }); - testThrows("$name addAll throws", () { - wrapped.addAll(Map()..[42] = 42); + testThrows('$name addAll throws', () { + wrapped.addAll({42: 42}); }); - testThrows("$name addAll empty throws", () { - wrapped.addAll(Map()); + testThrows('$name addAll empty throws', () { + wrapped.addAll({}); }); - testThrows("$name remove throws", () { + testThrows('$name remove throws', () { wrapped.remove(0); }); - testThrows("$name clear throws", () { + testThrows('$name clear throws', () { wrapped.clear(); }); } diff --git a/pkgs/collection/test/utils.dart b/pkgs/collection/test/utils.dart index dbeadc76..48cd7cf6 100644 --- a/pkgs/collection/test/utils.dart +++ b/pkgs/collection/test/utils.dart @@ -2,7 +2,7 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import "package:test/test.dart"; +import 'package:test/test.dart'; final Matcher throwsCastError = throwsA(TypeMatcher()); diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index 3270def2..43ff4c2d 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -4,9 +4,10 @@ /// Tests wrapper utilities. -import "dart:collection"; -import "package:collection/collection.dart"; -import "package:test/test.dart"; +import 'dart:collection'; + +import 'package:collection/collection.dart'; +import 'package:test/test.dart'; // Test that any member access/call on the wrapper object is equal to // an expected access on the wrapped object. @@ -15,7 +16,7 @@ import "package:test/test.dart"; // Compare two Invocations for having equal type and arguments. void testInvocations(Invocation i1, Invocation i2) { - String name = "${i1.memberName}"; + var name = '${i1.memberName}'; expect(i1.isGetter, equals(i2.isGetter), reason: name); expect(i1.isSetter, equals(i2.isSetter), reason: name); expect(i1.memberName, equals(i2.memberName), reason: name); @@ -29,21 +30,23 @@ void testInvocations(Invocation i1, Invocation i2) { /// Use as `(expector..someAccess()).equals.someAccess();`. /// Alle the intercepted member accesses returns `null`. abstract class Expector { - wrappedChecker(Invocation i); + dynamic wrappedChecker(Invocation i); // After calling any member on the Expector, equals is an object that expects // the *same* invocation on the wrapped object. - var equals; + dynamic equals; - noSuchMethod(Invocation i) { + @override + dynamic noSuchMethod(Invocation i) { equals = wrappedChecker(i); return null; } - toString() { + @override + String toString() { // Cannot return an _Equals object since toString must return a String. // Just set equals and return a string. equals = wrappedChecker(toStringInvocation); - return ""; + return ''; } } @@ -52,14 +55,16 @@ abstract class Expector { class InvocationChecker { final Invocation _expected; InvocationChecker(this._expected); - noSuchMethod(Invocation actual) { + @override + dynamic noSuchMethod(Invocation actual) { testInvocations(_expected, actual); return null; } - toString() { + @override + String toString() { testInvocations(_expected, toStringInvocation); - return ""; + return ''; } // Could also handle runtimeType, hashCode and == the same way as // toString, but we are not testing them since collections generally @@ -94,30 +99,36 @@ class MapInvocationChecker extends InvocationChecker // Expector that wraps in DelegatingIterable. class IterableExpector extends Expector implements Iterable { - wrappedChecker(Invocation i) => + @override + dynamic wrappedChecker(Invocation i) => DelegatingIterable(IterableInvocationChecker(i)); } // Expector that wraps in DelegatingList. class ListExpector extends Expector implements List { - wrappedChecker(Invocation i) => + @override + dynamic wrappedChecker(Invocation i) => DelegatingList(ListInvocationChecker(i)); } // Expector that wraps in DelegatingSet. class SetExpector extends Expector implements Set { - wrappedChecker(Invocation i) => DelegatingSet(SetInvocationChecker(i)); + @override + dynamic wrappedChecker(Invocation i) => + DelegatingSet(SetInvocationChecker(i)); } // Expector that wraps in DelegatingSet. class QueueExpector extends Expector implements Queue { - wrappedChecker(Invocation i) => + @override + dynamic wrappedChecker(Invocation i) => DelegatingQueue(QueueInvocationChecker(i)); } // Expector that wraps in DelegatingMap. class MapExpector extends Expector implements Map { - wrappedChecker(Invocation i) => + @override + dynamic wrappedChecker(Invocation i) => DelegatingMap(MapInvocationChecker(i)); } @@ -128,7 +139,7 @@ Null func2(Object x, Object y) => null; var val = Object(); void main() { - testIterable(var expect) { + void testIterable(var expect) { (expect..any(func1)).equals.any(func1); (expect..contains(val)).equals.contains(val); (expect..elementAt(0)).equals.elementAt(0); @@ -149,7 +160,7 @@ void main() { (expect..isNotEmpty).equals.isNotEmpty; (expect..iterator).equals.iterator; (expect..join('')).equals.join(); - (expect..join("X")).equals.join("X"); + (expect..join('X')).equals.join('X'); (expect..last).equals.last; (expect..lastWhere(func1, orElse: null)).equals.lastWhere(func1); (expect..lastWhere(func1, orElse: func0)) @@ -211,7 +222,7 @@ void main() { void testSet(var expect) { testIterable(expect); - Set set = Set(); + var set = {}; (expect..add(val)).equals.add(val); (expect..addAll([val])).equals.addAll([val]); (expect..clear()).equals.clear(); @@ -239,7 +250,7 @@ void main() { } void testMap(var expect) { - Map map = Map(); + var map = {}; (expect..[val]).equals[val]; (expect..[val] = val).equals[val] = val; (expect..addAll(map)).equals.addAll(map); @@ -260,373 +271,370 @@ void main() { // Runs tests of Set behavior. // // [setUpSet] should return a set with two elements: "foo" and "bar". - void testTwoElementSet(Set setUpSet()) { - group("with two elements", () { + void testTwoElementSet(Set Function() setUpSet) { + group('with two elements', () { Set set; setUp(() => set = setUpSet()); - test(".any", () { - expect(set.any((element) => element == "foo"), isTrue); - expect(set.any((element) => element == "baz"), isFalse); + test('.any', () { + expect(set.any((element) => element == 'foo'), isTrue); + expect(set.any((element) => element == 'baz'), isFalse); }); - test(".elementAt", () { - expect(set.elementAt(0), equals("foo")); - expect(set.elementAt(1), equals("bar")); + test('.elementAt', () { + expect(set.elementAt(0), equals('foo')); + expect(set.elementAt(1), equals('bar')); expect(() => set.elementAt(2), throwsRangeError); }); - test(".every", () { - expect(set.every((element) => element == "foo"), isFalse); + test('.every', () { + expect(set.every((element) => element == 'foo'), isFalse); expect(set.every((element) => element is String), isTrue); }); - test(".expand", () { + test('.expand', () { expect(set.expand((element) { return [element.substring(0, 1), element.substring(1)]; - }), equals(["f", "oo", "b", "ar"])); + }), equals(['f', 'oo', 'b', 'ar'])); }); - test(".first", () { - expect(set.first, equals("foo")); + test('.first', () { + expect(set.first, equals('foo')); }); - test(".firstWhere", () { - expect(set.firstWhere((element) => element is String), equals("foo")); - expect(set.firstWhere((element) => element.startsWith("b")), - equals("bar")); + test('.firstWhere', () { + expect(set.firstWhere((element) => element is String), equals('foo')); + expect(set.firstWhere((element) => element.startsWith('b')), + equals('bar')); expect(() => set.firstWhere((element) => element is int), throwsStateError); - expect(set.firstWhere((element) => element is int, orElse: () => "baz"), - equals("baz")); + expect(set.firstWhere((element) => element is int, orElse: () => 'baz'), + equals('baz')); }); - test(".fold", () { - expect(set.fold("start", (previous, element) => previous + element), - equals("startfoobar")); + test('.fold', () { + expect(set.fold('start', (previous, element) => previous + element), + equals('startfoobar')); }); - test(".forEach", () { + test('.forEach', () { var values = []; set.forEach(values.add); - expect(values, equals(["foo", "bar"])); + expect(values, equals(['foo', 'bar'])); }); - test(".iterator", () { + test('.iterator', () { var values = []; for (var element in set) { values.add(element); } - expect(values, equals(["foo", "bar"])); + expect(values, equals(['foo', 'bar'])); }); - test(".join", () { - expect(set.join(", "), equals("foo, bar")); + test('.join', () { + expect(set.join(', '), equals('foo, bar')); }); - test(".last", () { - expect(set.last, equals("bar")); + test('.last', () { + expect(set.last, equals('bar')); }); - test(".lastWhere", () { - expect(set.lastWhere((element) => element is String), equals("bar")); + test('.lastWhere', () { + expect(set.lastWhere((element) => element is String), equals('bar')); expect( - set.lastWhere((element) => element.startsWith("f")), equals("foo")); + set.lastWhere((element) => element.startsWith('f')), equals('foo')); expect( () => set.lastWhere((element) => element is int), throwsStateError); - expect(set.lastWhere((element) => element is int, orElse: () => "baz"), - equals("baz")); + expect(set.lastWhere((element) => element is int, orElse: () => 'baz'), + equals('baz')); }); - test(".map", () { + test('.map', () { expect( - set.map((element) => element.substring(1)), equals(["oo", "ar"])); + set.map((element) => element.substring(1)), equals(['oo', 'ar'])); }); - test(".reduce", () { + test('.reduce', () { expect(set.reduce((previous, element) => previous + element), - equals("foobar")); + equals('foobar')); }); - test(".singleWhere", () { - expect(() => set.singleWhere((element) => element == "baz"), + test('.singleWhere', () { + expect(() => set.singleWhere((element) => element == 'baz'), throwsStateError); - expect(set.singleWhere((element) => element == "foo"), "foo"); + expect(set.singleWhere((element) => element == 'foo'), 'foo'); expect(() => set.singleWhere((element) => element is String), throwsStateError); }); - test(".skip", () { - expect(set.skip(0), equals(["foo", "bar"])); - expect(set.skip(1), equals(["bar"])); + test('.skip', () { + expect(set.skip(0), equals(['foo', 'bar'])); + expect(set.skip(1), equals(['bar'])); expect(set.skip(2), equals([])); }); - test(".skipWhile", () { - expect(set.skipWhile((element) => element.startsWith("f")), - equals(["bar"])); - expect(set.skipWhile((element) => element.startsWith("z")), - equals(["foo", "bar"])); + test('.skipWhile', () { + expect(set.skipWhile((element) => element.startsWith('f')), + equals(['bar'])); + expect(set.skipWhile((element) => element.startsWith('z')), + equals(['foo', 'bar'])); expect(set.skipWhile((element) => element is String), equals([])); }); - test(".take", () { + test('.take', () { expect(set.take(0), equals([])); - expect(set.take(1), equals(["foo"])); - expect(set.take(2), equals(["foo", "bar"])); + expect(set.take(1), equals(['foo'])); + expect(set.take(2), equals(['foo', 'bar'])); }); - test(".takeWhile", () { - expect(set.takeWhile((element) => element.startsWith("f")), - equals(["foo"])); - expect(set.takeWhile((element) => element.startsWith("z")), equals([])); + test('.takeWhile', () { + expect(set.takeWhile((element) => element.startsWith('f')), + equals(['foo'])); + expect(set.takeWhile((element) => element.startsWith('z')), equals([])); expect(set.takeWhile((element) => element is String), - equals(["foo", "bar"])); + equals(['foo', 'bar'])); }); - test(".toList", () { - expect(set.toList(), equals(["foo", "bar"])); - expect(() => set.toList(growable: false).add("baz"), + test('.toList', () { + expect(set.toList(), equals(['foo', 'bar'])); + expect(() => set.toList(growable: false).add('baz'), throwsUnsupportedError); - expect(set.toList()..add("baz"), equals(["foo", "bar", "baz"])); + expect(set.toList()..add('baz'), equals(['foo', 'bar', 'baz'])); }); - test(".toSet", () { - expect(set.toSet(), equals(Set.from(["foo", "bar"]))); + test('.toSet', () { + expect(set.toSet(), equals({'foo', 'bar'})); }); - test(".where", () { + test('.where', () { expect( - set.where((element) => element.startsWith("f")), equals(["foo"])); - expect(set.where((element) => element.startsWith("z")), equals([])); - expect(set.whereType(), equals(["foo", "bar"])); + set.where((element) => element.startsWith('f')), equals(['foo'])); + expect(set.where((element) => element.startsWith('z')), equals([])); + expect(set.whereType(), equals(['foo', 'bar'])); }); - test(".containsAll", () { - expect(set.containsAll(["foo", "bar"]), isTrue); - expect(set.containsAll(["foo"]), isTrue); - expect(set.containsAll(["foo", "bar", "qux"]), isFalse); + test('.containsAll', () { + expect(set.containsAll(['foo', 'bar']), isTrue); + expect(set.containsAll(['foo']), isTrue); + expect(set.containsAll(['foo', 'bar', 'qux']), isFalse); }); - test(".difference", () { - expect(set.difference(Set.from(["foo", "baz"])), - equals(Set.from(["bar"]))); + test('.difference', () { + expect(set.difference({'foo', 'baz'}), equals({'bar'})); }); - test(".intersection", () { - expect(set.intersection(Set.from(["foo", "baz"])), - equals(Set.from(["foo"]))); + test('.intersection', () { + expect(set.intersection({'foo', 'baz'}), equals({'foo'})); }); - test(".union", () { - expect(set.union(Set.from(["foo", "baz"])), - equals(Set.from(["foo", "bar", "baz"]))); + test('.union', () { + expect(set.union({'foo', 'baz'}), equals({'foo', 'bar', 'baz'})); }); }); } - test("Iterable", () { + test('Iterable', () { testIterable(IterableExpector()); }); - test("List", () { + test('List', () { testList(ListExpector()); }); - test("Set", () { + test('Set', () { testSet(SetExpector()); }); - test("Queue", () { + test('Queue', () { testQueue(QueueExpector()); }); - test("Map", () { + test('Map', () { testMap(MapExpector()); }); - group("MapKeySet", () { + group('MapKeySet', () { Map map; Set set; setUp(() { - map = Map(); + map = {}; set = MapKeySet(map); }); testTwoElementSet(() { - map["foo"] = 1; - map["bar"] = 2; + map['foo'] = 1; + map['bar'] = 2; return set; }); - test(".single", () { + test('.single', () { expect(() => set.single, throwsStateError); - map["foo"] = 1; - expect(set.single, equals("foo")); - map["bar"] = 1; + map['foo'] = 1; + expect(set.single, equals('foo')); + map['bar'] = 1; expect(() => set.single, throwsStateError); }); - test(".toString", () { - expect(set.toString(), equals("{}")); - map["foo"] = 1; - map["bar"] = 2; - expect(set.toString(), equals("{foo, bar}")); + test('.toString', () { + expect(set.toString(), equals('{}')); + map['foo'] = 1; + map['bar'] = 2; + expect(set.toString(), equals('{foo, bar}')); }); - test(".contains", () { - expect(set.contains("foo"), isFalse); - map["foo"] = 1; - expect(set.contains("foo"), isTrue); + test('.contains', () { + expect(set.contains('foo'), isFalse); + map['foo'] = 1; + expect(set.contains('foo'), isTrue); }); - test(".isEmpty", () { + test('.isEmpty', () { expect(set.isEmpty, isTrue); - map["foo"] = 1; + map['foo'] = 1; expect(set.isEmpty, isFalse); }); - test(".isNotEmpty", () { + test('.isNotEmpty', () { expect(set.isNotEmpty, isFalse); - map["foo"] = 1; + map['foo'] = 1; expect(set.isNotEmpty, isTrue); }); - test(".length", () { + test('.length', () { expect(set, hasLength(0)); - map["foo"] = 1; + map['foo'] = 1; expect(set, hasLength(1)); - map["bar"] = 2; + map['bar'] = 2; expect(set, hasLength(2)); }); - test("is unmodifiable", () { - expect(() => set.add("baz"), throwsUnsupportedError); - expect(() => set.addAll(["baz", "bang"]), throwsUnsupportedError); - expect(() => set.remove("foo"), throwsUnsupportedError); - expect(() => set.removeAll(["baz", "bang"]), throwsUnsupportedError); - expect(() => set.retainAll(["foo"]), throwsUnsupportedError); + test('is unmodifiable', () { + expect(() => set.add('baz'), throwsUnsupportedError); + expect(() => set.addAll(['baz', 'bang']), throwsUnsupportedError); + expect(() => set.remove('foo'), throwsUnsupportedError); + expect(() => set.removeAll(['baz', 'bang']), throwsUnsupportedError); + expect(() => set.retainAll(['foo']), throwsUnsupportedError); expect(() => set.removeWhere((_) => true), throwsUnsupportedError); expect(() => set.retainWhere((_) => true), throwsUnsupportedError); expect(() => set.clear(), throwsUnsupportedError); }); }); - group("MapValueSet", () { + group('MapValueSet', () { Map map; Set set; setUp(() { - map = Map(); + map = {}; set = MapValueSet(map, (string) => string.substring(0, 1)); }); testTwoElementSet(() { - map["f"] = "foo"; - map["b"] = "bar"; + map['f'] = 'foo'; + map['b'] = 'bar'; return set; }); - test(".single", () { + test('.single', () { expect(() => set.single, throwsStateError); - map["f"] = "foo"; - expect(set.single, equals("foo")); - map["b"] = "bar"; + map['f'] = 'foo'; + expect(set.single, equals('foo')); + map['b'] = 'bar'; expect(() => set.single, throwsStateError); }); - test(".toString", () { - expect(set.toString(), equals("{}")); - map["f"] = "foo"; - map["b"] = "bar"; - expect(set.toString(), equals("{foo, bar}")); + test('.toString', () { + expect(set.toString(), equals('{}')); + map['f'] = 'foo'; + map['b'] = 'bar'; + expect(set.toString(), equals('{foo, bar}')); }); - test(".contains", () { - expect(set.contains("foo"), isFalse); - map["f"] = "foo"; - expect(set.contains("foo"), isTrue); - expect(set.contains("fblthp"), isTrue); + test('.contains', () { + expect(set.contains('foo'), isFalse); + map['f'] = 'foo'; + expect(set.contains('foo'), isTrue); + expect(set.contains('fblthp'), isTrue); }); - test(".isEmpty", () { + test('.isEmpty', () { expect(set.isEmpty, isTrue); - map["f"] = "foo"; + map['f'] = 'foo'; expect(set.isEmpty, isFalse); }); - test(".isNotEmpty", () { + test('.isNotEmpty', () { expect(set.isNotEmpty, isFalse); - map["f"] = "foo"; + map['f'] = 'foo'; expect(set.isNotEmpty, isTrue); }); - test(".length", () { + test('.length', () { expect(set, hasLength(0)); - map["f"] = "foo"; + map['f'] = 'foo'; expect(set, hasLength(1)); - map["b"] = "bar"; + map['b'] = 'bar'; expect(set, hasLength(2)); }); - test(".lookup", () { - map["f"] = "foo"; - expect(set.lookup("fblthp"), equals("foo")); - expect(set.lookup("bar"), isNull); + test('.lookup', () { + map['f'] = 'foo'; + expect(set.lookup('fblthp'), equals('foo')); + expect(set.lookup('bar'), isNull); }); - test(".add", () { - set.add("foo"); - set.add("bar"); - expect(map, equals({"f": "foo", "b": "bar"})); + test('.add', () { + set.add('foo'); + set.add('bar'); + expect(map, equals({'f': 'foo', 'b': 'bar'})); }); - test(".addAll", () { - set.addAll(["foo", "bar"]); - expect(map, equals({"f": "foo", "b": "bar"})); + test('.addAll', () { + set.addAll(['foo', 'bar']); + expect(map, equals({'f': 'foo', 'b': 'bar'})); }); - test(".clear", () { - map["f"] = "foo"; - map["b"] = "bar"; + test('.clear', () { + map['f'] = 'foo'; + map['b'] = 'bar'; set.clear(); expect(map, isEmpty); }); - test(".remove", () { - map["f"] = "foo"; - map["b"] = "bar"; - set.remove("fblthp"); - expect(map, equals({"b": "bar"})); + test('.remove', () { + map['f'] = 'foo'; + map['b'] = 'bar'; + set.remove('fblthp'); + expect(map, equals({'b': 'bar'})); }); - test(".removeAll", () { - map["f"] = "foo"; - map["b"] = "bar"; - map["q"] = "qux"; - set.removeAll(["fblthp", "qux"]); - expect(map, equals({"b": "bar"})); + test('.removeAll', () { + map['f'] = 'foo'; + map['b'] = 'bar'; + map['q'] = 'qux'; + set.removeAll(['fblthp', 'qux']); + expect(map, equals({'b': 'bar'})); }); - test(".removeWhere", () { - map["f"] = "foo"; - map["b"] = "bar"; - map["q"] = "qoo"; - set.removeWhere((element) => element.endsWith("o")); - expect(map, equals({"b": "bar"})); + test('.removeWhere', () { + map['f'] = 'foo'; + map['b'] = 'bar'; + map['q'] = 'qoo'; + set.removeWhere((element) => element.endsWith('o')); + expect(map, equals({'b': 'bar'})); }); - test(".retainAll", () { - map["f"] = "foo"; - map["b"] = "bar"; - map["q"] = "qux"; - set.retainAll(["fblthp", "qux"]); - expect(map, equals({"f": "foo", "q": "qux"})); + test('.retainAll', () { + map['f'] = 'foo'; + map['b'] = 'bar'; + map['q'] = 'qux'; + set.retainAll(['fblthp', 'qux']); + expect(map, equals({'f': 'foo', 'q': 'qux'})); }); - test(".retainAll respects an unusual notion of equality", () { + test('.retainAll respects an unusual notion of equality', () { map = HashMap( equals: (value1, value2) => value1.toLowerCase() == value2.toLowerCase(), @@ -634,19 +642,19 @@ void main() { set = MapValueSet(map, (string) => string.substring(0, 1)); - map["f"] = "foo"; - map["B"] = "bar"; - map["Q"] = "qux"; - set.retainAll(["fblthp", "qux"]); - expect(map, equals({"f": "foo", "Q": "qux"})); + map['f'] = 'foo'; + map['B'] = 'bar'; + map['Q'] = 'qux'; + set.retainAll(['fblthp', 'qux']); + expect(map, equals({'f': 'foo', 'Q': 'qux'})); }); - test(".retainWhere", () { - map["f"] = "foo"; - map["b"] = "bar"; - map["q"] = "qoo"; - set.retainWhere((element) => element.endsWith("o")); - expect(map, equals({"f": "foo", "q": "qoo"})); + test('.retainWhere', () { + map['f'] = 'foo'; + map['b'] = 'bar'; + map['q'] = 'qoo'; + set.retainWhere((element) => element.endsWith('o')); + expect(map, equals({'f': 'foo', 'q': 'qoo'})); }); }); } From 33e5c2085328f5dbe64b33ad46d1bc33224a5ce7 Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Fri, 10 Jan 2020 10:35:40 -0800 Subject: [PATCH 116/235] Remove private typedefs (dart-lang/collection#115) https://dart.dev/guides/language/effective-dart/design#prefer-inline-function-types-over-typedefs Also drop some comments redundant against a field type and remove a member named "get*" with a more descriptive name. --- pkgs/collection/analysis_options.yaml | 1 + pkgs/collection/lib/src/canonicalized_map.dart | 8 ++------ pkgs/collection/lib/src/equality.dart | 17 +++++++---------- pkgs/collection/lib/src/wrappers.dart | 4 +--- 4 files changed, 11 insertions(+), 19 deletions(-) diff --git a/pkgs/collection/analysis_options.yaml b/pkgs/collection/analysis_options.yaml index c5a2a271..05bafc19 100644 --- a/pkgs/collection/analysis_options.yaml +++ b/pkgs/collection/analysis_options.yaml @@ -20,6 +20,7 @@ linter: # Style - avoid_init_to_null + - avoid_private_typedef_functions - avoid_renaming_method_parameters - avoid_return_types_on_setters - await_only_futures diff --git a/pkgs/collection/lib/src/canonicalized_map.dart b/pkgs/collection/lib/src/canonicalized_map.dart index 383c18f6..16e55e46 100644 --- a/pkgs/collection/lib/src/canonicalized_map.dart +++ b/pkgs/collection/lib/src/canonicalized_map.dart @@ -6,10 +6,6 @@ import 'dart:collection'; import 'utils.dart'; -typedef _Canonicalize = C Function(K key); - -typedef _IsValidKey = bool Function(Object key); - /// A map whose keys are converted to canonical values of type `C`. /// /// This is useful for using case-insensitive String keys, for example. It's @@ -20,9 +16,9 @@ typedef _IsValidKey = bool Function(Object key); /// By default, `null` is allowed as a key. It can be forbidden via the /// `isValidKey` parameter. class CanonicalizedMap implements Map { - final _Canonicalize _canonicalize; + final C Function(K) _canonicalize; - final _IsValidKey _isValidKeyFn; + final bool Function(Object) _isValidKeyFn; final _base = >{}; diff --git a/pkgs/collection/lib/src/equality.dart b/pkgs/collection/lib/src/equality.dart index 439d5268..3e99ada8 100644 --- a/pkgs/collection/lib/src/equality.dart +++ b/pkgs/collection/lib/src/equality.dart @@ -30,8 +30,6 @@ abstract class Equality { bool isValidKey(Object o); } -typedef _GetKey = F Function(E object); - /// Equality of objects based on derived values. /// /// For example, given the class: @@ -49,27 +47,26 @@ typedef _GetKey = F Function(E object); /// It's also possible to pass an additional equality instance that should be /// used to compare the value itself. class EqualityBy implements Equality { - // Returns a derived value F from an object E. - final _GetKey _getKey; + final F Function(E) _comparisonKey; - // Determines equality between two values of F. final Equality _inner; - EqualityBy(F Function(E) getKey, + EqualityBy(F Function(E) comparisonKey, [Equality inner = const DefaultEquality()]) - : _getKey = getKey, + : _comparisonKey = comparisonKey, _inner = inner; @override - bool equals(E e1, E e2) => _inner.equals(_getKey(e1), _getKey(e2)); + bool equals(E e1, E e2) => + _inner.equals(_comparisonKey(e1), _comparisonKey(e2)); @override - int hash(E e) => _inner.hash(_getKey(e)); + int hash(E e) => _inner.hash(_comparisonKey(e)); @override bool isValidKey(Object o) { if (o is E) { - final value = _getKey(o); + final value = _comparisonKey(o); return value is F && _inner.isValidKey(value); } return false; diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index 0e9e2ba6..77340732 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -7,8 +7,6 @@ import 'dart:math' as math; import 'unmodifiable_wrappers.dart'; -typedef _KeyForValue = K Function(V value); - /// A base class for delegating iterables. /// /// Subclasses can provide a [_base] that should be delegated to. Unlike @@ -688,7 +686,7 @@ class MapKeySet extends _DelegatingIterableBase /// Effectively, the map will act as a kind of index for the set. class MapValueSet extends _DelegatingIterableBase implements Set { final Map _baseMap; - final _KeyForValue _keyForValue; + final K Function(V) _keyForValue; /// Creates a new [MapValueSet] based on [base]. /// From ec9e04f459205da4dff5a51fd2e0c9c874a7562c Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Fri, 10 Jan 2020 10:35:56 -0800 Subject: [PATCH 117/235] Deprecate the mapMap utility (dart-lang/collection#114) This utility hasn't been useful since `Map` got a `.map` call. --- pkgs/collection/CHANGELOG.md | 5 +++++ pkgs/collection/lib/src/functions.dart | 3 +-- pkgs/collection/test/functions_test.dart | 5 +++++ 3 files changed, 11 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index b5db9910..57e02ae5 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,8 @@ +## 1.14.13-dev + +* Deprecate `mapMap`. The Map interface has a `map` call and map literals can + use for-loop elements which supersede this method. + ## 1.14.12 * Fix `CombinedMapView.keys`, `CombinedMapView.length`, diff --git a/pkgs/collection/lib/src/functions.dart b/pkgs/collection/lib/src/functions.dart index d200a0bb..0f71548a 100644 --- a/pkgs/collection/lib/src/functions.dart +++ b/pkgs/collection/lib/src/functions.dart @@ -7,12 +7,11 @@ import 'dart:math' as math; import 'utils.dart'; -// TODO(nweiz): When sdk#26488 is fixed, use overloads to ensure that if [key] -// or [value] isn't passed, `K2`/`V2` defaults to `K1`/`V1`, respectively. /// Creates a new map from [map] with new keys and values. /// /// The return values of [key] are used as the keys and the return values of /// [value] are used as the values for the new map. +@Deprecated('Use Map.map or a for loop in a Map literal.') Map mapMap(Map map, {K2 Function(K1, V1) key, V2 Function(K1, V1) value}) { key ??= (mapKey, _) => mapKey as K2; diff --git a/pkgs/collection/test/functions_test.dart b/pkgs/collection/test/functions_test.dart index f18ec2fe..a659c946 100644 --- a/pkgs/collection/test/functions_test.dart +++ b/pkgs/collection/test/functions_test.dart @@ -10,6 +10,7 @@ void main() { group('mapMap()', () { test('with an empty map returns an empty map', () { expect( + // ignore: deprecated_member_use_from_same_package mapMap({}, key: expectAsync2((_, __) {}, count: 0), value: expectAsync2((_, __) {}, count: 0)), @@ -18,6 +19,7 @@ void main() { test('with no callbacks, returns a copy of the map', () { var map = {'foo': 1, 'bar': 2}; + // ignore: deprecated_member_use_from_same_package var result = mapMap(map); expect(result, equals({'foo': 1, 'bar': 2})); @@ -27,17 +29,20 @@ void main() { }); test("maps the map's keys", () { + // ignore: deprecated_member_use_from_same_package expect(mapMap({'foo': 1, 'bar': 2}, key: (key, value) => key[value]), equals({'o': 1, 'r': 2})); }); test("maps the map's values", () { + // ignore: deprecated_member_use_from_same_package expect(mapMap({'foo': 1, 'bar': 2}, value: (key, value) => key[value]), equals({'foo': 'o', 'bar': 'r'})); }); test("maps both the map's keys and values", () { expect( + // ignore: deprecated_member_use_from_same_package mapMap({'foo': 1, 'bar': 2}, key: (key, value) => '$key$value', value: (key, value) => key[value]), From a12b214788ee5b75d5305645ac5a6a24324d29c6 Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Fri, 10 Jan 2020 10:36:08 -0800 Subject: [PATCH 118/235] Remove new keyword from code samples (dart-lang/collection#116) Find the word `new` where it is use in a context referencing Dart code and remove it to match the style of Dart we write. Change a `[]` in an implementation comment to backticks since `[]` should be use in Doc comments and does not have meaning in other comments. --- pkgs/collection/lib/src/equality.dart | 2 +- pkgs/collection/lib/src/union_set_controller.dart | 2 +- pkgs/collection/lib/src/unmodifiable_wrappers.dart | 2 +- pkgs/collection/test/priority_queue_test.dart | 2 +- pkgs/collection/test/queue_list_test.dart | 6 +++--- 5 files changed, 7 insertions(+), 7 deletions(-) diff --git a/pkgs/collection/lib/src/equality.dart b/pkgs/collection/lib/src/equality.dart index 3e99ada8..b003a06c 100644 --- a/pkgs/collection/lib/src/equality.dart +++ b/pkgs/collection/lib/src/equality.dart @@ -41,7 +41,7 @@ abstract class Equality { /// /// The following [Equality] considers employees with the same IDs to be equal: /// ```dart -/// new EqualityBy((Employee e) => e.employmentId); +/// EqualityBy((Employee e) => e.employmentId); /// ``` /// /// It's also possible to pass an additional equality instance that should be diff --git a/pkgs/collection/lib/src/union_set_controller.dart b/pkgs/collection/lib/src/union_set_controller.dart index b1845303..6c04cef1 100644 --- a/pkgs/collection/lib/src/union_set_controller.dart +++ b/pkgs/collection/lib/src/union_set_controller.dart @@ -12,7 +12,7 @@ import 'union_set.dart'; /// ```dart /// class Engine { /// Set get activeTests => _activeTestsGroup.set; -/// final _activeTestsGroup = new UnionSetController(); +/// final _activeTestsGroup = UnionSetController(); /// /// void addSuite(Suite suite) { /// _activeTestsGroup.add(suite.tests); diff --git a/pkgs/collection/lib/src/unmodifiable_wrappers.dart b/pkgs/collection/lib/src/unmodifiable_wrappers.dart index ebac05fb..7a7898ef 100644 --- a/pkgs/collection/lib/src/unmodifiable_wrappers.dart +++ b/pkgs/collection/lib/src/unmodifiable_wrappers.dart @@ -109,7 +109,7 @@ class UnmodifiableSetView extends DelegatingSet /// An unmodifiable empty set. /// - /// This is the same as `new UnmodifiableSetView(new Set())`, except that it + /// This is the same as `UnmodifiableSetView(Set())`, except that it /// can be used in const contexts. const factory UnmodifiableSetView.empty() = EmptyUnmodifiableSet; } diff --git a/pkgs/collection/test/priority_queue_test.dart b/pkgs/collection/test/priority_queue_test.dart index 03e22538..928de6ce 100644 --- a/pkgs/collection/test/priority_queue_test.dart +++ b/pkgs/collection/test/priority_queue_test.dart @@ -15,7 +15,7 @@ void main() { } void testDefault() { - test('new PriorityQueue() returns a HeapPriorityQueue', () { + test('PriorityQueue() returns a HeapPriorityQueue', () { expect(PriorityQueue(), TypeMatcher>()); }); testInt(() => PriorityQueue()); diff --git a/pkgs/collection/test/queue_list_test.dart b/pkgs/collection/test/queue_list_test.dart index 4099308c..d37cc61f 100644 --- a/pkgs/collection/test/queue_list_test.dart +++ b/pkgs/collection/test/queue_list_test.dart @@ -8,7 +8,7 @@ import 'package:test/test.dart'; import 'utils.dart'; void main() { - group('new QueueList()', () { + group('QueueList()', () { test('creates an empty QueueList', () { expect(QueueList(), isEmpty); }); @@ -18,7 +18,7 @@ void main() { }); }); - test('new QueueList.from() copies the contents of an iterable', () { + test('QueueList.from() copies the contents of an iterable', () { expect(QueueList.from([1, 2, 3].skip(1)), equals([2, 3])); }); @@ -298,7 +298,7 @@ void main() { /// Returns a queue whose internal ring buffer is full enough that adding a new /// element will expand it. QueueList atCapacity() { - // Use addAll because [new QueueList.from(List)] won't use the default initial + // Use addAll because `QueueList.from(list)` won't use the default initial // capacity of 8. return QueueList()..addAll([1, 2, 3, 4, 5, 6, 7]); } From 0fab415415c864c50d36df7ac9063604f2d57ab0 Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Tue, 4 Feb 2020 11:15:03 -0800 Subject: [PATCH 119/235] Refactor UnionSet deduplicating iterable (dart-lang/collection#117) `Set.add` returns a boolean so it is unnecessary to use both `Set.contains` and then `Set.add`. Once the `.where` call is shortened to a tearoff the deduplication can be inlined with `_iterable`. --- pkgs/collection/lib/src/union_set.dart | 21 ++++++--------------- 1 file changed, 6 insertions(+), 15 deletions(-) diff --git a/pkgs/collection/lib/src/union_set.dart b/pkgs/collection/lib/src/union_set.dart index 09fa6cd6..1b76645d 100644 --- a/pkgs/collection/lib/src/union_set.dart +++ b/pkgs/collection/lib/src/union_set.dart @@ -52,22 +52,13 @@ class UnionSet extends SetBase with UnmodifiableSetMixin { @override Iterator get iterator => _iterable.iterator; - /// Returns an iterable over the contents of all the sets in [this]. - Iterable get _iterable => - _disjoint ? _sets.expand((set) => set) : _dedupIterable; - - /// Returns an iterable over the contents of all the sets in [this] that - /// de-duplicates elements. + /// An iterable over the contents of all [_sets]. /// - /// If the sets aren't guaranteed to be disjoint, this keeps track of the - /// elements we've already emitted so that we can de-duplicate them. - Iterable get _dedupIterable { - var seen = {}; - return _sets.expand((set) => set).where((element) { - if (seen.contains(element)) return false; - seen.add(element); - return true; - }); + /// If this is not a [_disjoint] union an extra set is used to deduplicate + /// values. + Iterable get _iterable { + var allElements = _sets.expand((set) => set); + return _disjoint ? allElements : allElements.where({}.add); } @override From 0a1a7364207a1099245602a7fb4e446cad032d69 Mon Sep 17 00:00:00 2001 From: David Lloyd Date: Sun, 8 Mar 2020 19:18:57 -0400 Subject: [PATCH 120/235] Remove 'Say Define' (dart-lang/collection#122) Fix for idomatic (and correct) English. --- pkgs/collection/README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/pkgs/collection/README.md b/pkgs/collection/README.md index a7985fa4..6c22c304 100644 --- a/pkgs/collection/README.md +++ b/pkgs/collection/README.md @@ -15,7 +15,7 @@ The package provides a way to specify the equality of elements and collections. Collections in Dart have no inherent equality. Two sets are not equal, even if they contain exactly the same objects as elements. -The `Equality` interface provides a way to say define such an equality. In this +The `Equality` interface provides a way to define such an equality. In this case, for example, `const SetEquality(const IdentityEquality())` is an equality that considers two sets equal exactly if they contain identical elements. From 80e5149d84780eab3884ff85e2ac2240a33521aa Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Fri, 13 Mar 2020 12:21:44 -0700 Subject: [PATCH 121/235] Remove author from pubspec --- pkgs/collection/pubspec.yaml | 1 - 1 file changed, 1 deletion(-) diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 48413daa..e11c1e65 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -2,7 +2,6 @@ name: collection version: 1.14.13-dev description: Collections and utilities functions and classes related to collections. -author: Dart Team homepage: https://www.github.com/dart-lang/collection environment: From 5826da67218d552bb920b823e7b3c105b66f1d0b Mon Sep 17 00:00:00 2001 From: William Hesse Date: Wed, 18 Mar 2020 18:07:30 +0100 Subject: [PATCH 122/235] Replace a use of putIfAbsent with ??= (dart-lang/collection#125) Because it avoids using a closure, it seems that ??= [] can be used with better performance than putIfAbsent in groupBy. --- pkgs/collection/lib/src/functions.dart | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/pkgs/collection/lib/src/functions.dart b/pkgs/collection/lib/src/functions.dart index 0f71548a..5fbef305 100644 --- a/pkgs/collection/lib/src/functions.dart +++ b/pkgs/collection/lib/src/functions.dart @@ -49,8 +49,7 @@ Map mergeMaps(Map map1, Map map2, Map> groupBy(Iterable values, T Function(S) key) { var map = >{}; for (var element in values) { - var list = map.putIfAbsent(key(element), () => []); - list.add(element); + (map[key(element)] ??= []).add(element); } return map; } From ed718aae4e70da454425a72c89929cba59ba1b34 Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Thu, 2 Apr 2020 10:39:26 -0700 Subject: [PATCH 123/235] Rewrite doc comments to refer to TypeError (dart-lang/collection#131) This will be the type going forward. Keep a reference to `CastError` for now, we can drop it after a few SDK releases. Ignore usage of `CastError` in a test so that we can keep running on the oldest supported stable SDK. We can switch this when the minimum SDK is bumped. --- pkgs/collection/lib/src/algorithms.dart | 12 ++++++++---- pkgs/collection/test/queue_list_test.dart | 3 ++- pkgs/collection/test/utils.dart | 4 ---- 3 files changed, 10 insertions(+), 9 deletions(-) diff --git a/pkgs/collection/lib/src/algorithms.dart b/pkgs/collection/lib/src/algorithms.dart index 9722b776..cb6a03f1 100644 --- a/pkgs/collection/lib/src/algorithms.dart +++ b/pkgs/collection/lib/src/algorithms.dart @@ -12,7 +12,8 @@ import 'utils.dart'; /// is unpredictable. /// /// If [compare] is omitted, this defaults to calling [Comparable.compareTo] on -/// the objects. If any object is not [Comparable], this throws a [CastError]. +/// the objects. If any object is not [Comparable], this throws a [TypeError] +/// (`CastError` on some SDK versions). /// /// Returns -1 if [value] is not in the list by default. int binarySearch(List sortedList, T value, {int Function(T, T) compare}) { @@ -40,7 +41,8 @@ int binarySearch(List sortedList, T value, {int Function(T, T) compare}) { /// is unpredictable. /// /// If [compare] is omitted, this defaults to calling [Comparable.compareTo] on -/// the objects. If any object is not [Comparable], this throws a [CastError]. +/// the objects. If any object is not [Comparable], this throws a [TypeError] +/// (`CastError` on some SDK versions). /// /// Returns [sortedList.length] if all the items in [sortedList] compare less /// than [value]. @@ -96,7 +98,8 @@ void _reverse(List list, int start, int end) { /// insertion sort. /// /// If [compare] is omitted, this defaults to calling [Comparable.compareTo] on -/// the objects. If any object is not [Comparable], this throws a [CastError]. +/// the objects. If any object is not [Comparable], this throws a [TypeError] +/// (`CastError` on some SDK versions). /// /// Insertion sort is a simple sorting algorithm. For `n` elements it does on /// the order of `n * log(n)` comparisons but up to `n` squared moves. The @@ -139,7 +142,8 @@ const int _MERGE_SORT_LIMIT = 32; /// merge sort algorithm. /// /// If [compare] is omitted, this defaults to calling [Comparable.compareTo] on -/// the objects. If any object is not [Comparable], this throws a [CastError]. +/// the objects. If any object is not [Comparable], this throws a [TypeError] +/// (`CastError` on some SDK versions). /// /// Merge-sorting works by splitting the job into two parts, sorting each /// recursively, and then merging the two sorted parts. diff --git a/pkgs/collection/test/queue_list_test.dart b/pkgs/collection/test/queue_list_test.dart index d37cc61f..a47e8623 100644 --- a/pkgs/collection/test/queue_list_test.dart +++ b/pkgs/collection/test/queue_list_test.dart @@ -284,7 +284,8 @@ void main() { ); expect( () => numQueue.add(1), - throwsCastError, + // ignore: deprecated_member_use + throwsA(isA()), skip: isDart2 ? false : 'In Dart1 a TypeError is not thrown', ); }); diff --git a/pkgs/collection/test/utils.dart b/pkgs/collection/test/utils.dart index 48cd7cf6..2c80fe2b 100644 --- a/pkgs/collection/test/utils.dart +++ b/pkgs/collection/test/utils.dart @@ -2,10 +2,6 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import 'package:test/test.dart'; - -final Matcher throwsCastError = throwsA(TypeMatcher()); - /// A hack to determine whether we are running in a Dart 2 runtime. final bool isDart2 = _isTypeArgString(''); bool _isTypeArgString(T arg) { From c7a063389f172980186050830276309218b7e370 Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Thu, 2 Apr 2020 10:59:28 -0700 Subject: [PATCH 124/235] Remove isDart2 utility (dart-lang/collection#132) We no longer run tests on Dart 1 SDKs so we don't need to have workarounds for behavior differences. --- pkgs/collection/test/queue_list_test.dart | 32 ++++++----------------- pkgs/collection/test/utils.dart | 13 --------- 2 files changed, 8 insertions(+), 37 deletions(-) delete mode 100644 pkgs/collection/test/utils.dart diff --git a/pkgs/collection/test/queue_list_test.dart b/pkgs/collection/test/queue_list_test.dart index a47e8623..4814550c 100644 --- a/pkgs/collection/test/queue_list_test.dart +++ b/pkgs/collection/test/queue_list_test.dart @@ -5,8 +5,6 @@ import 'package:collection/collection.dart'; import 'package:test/test.dart'; -import 'utils.dart'; - void main() { group('QueueList()', () { test('creates an empty QueueList', () { @@ -257,18 +255,10 @@ void main() { var patternQueue = QueueList()..addAll(['a', 'b']); var stringQueue = patternQueue.cast(); stringQueue.addAll(['c', 'd']); - expect( - stringQueue, - const TypeMatcher>(), - reason: 'Expected QueueList, got ${stringQueue.runtimeType}', - skip: isDart2 ? false : 'Cast does nothing in Dart1', - ); + expect(stringQueue, const TypeMatcher>(), + reason: 'Expected QueueList, got ${stringQueue.runtimeType}'); - expect( - stringQueue, - ['a', 'b', 'c', 'd'], - skip: isDart2 ? false : 'Cast does nothing in Dart1', - ); + expect(stringQueue, ['a', 'b', 'c', 'd']); expect(patternQueue, stringQueue, reason: 'Should forward to original'); }); @@ -276,18 +266,12 @@ void main() { test('cast throws on mutation when the type is not valid', () { QueueList stringQueue = QueueList(); var numQueue = stringQueue.cast(); + expect(numQueue, const TypeMatcher>(), + reason: 'Expected QueueList, got ${numQueue.runtimeType}'); expect( - numQueue, - const TypeMatcher>(), - reason: 'Expected QueueList, got ${numQueue.runtimeType}', - skip: isDart2 ? false : 'Cast does nothing in Dart1', - ); - expect( - () => numQueue.add(1), - // ignore: deprecated_member_use - throwsA(isA()), - skip: isDart2 ? false : 'In Dart1 a TypeError is not thrown', - ); + () => numQueue.add(1), + // ignore: deprecated_member_use + throwsA(isA())); }); test('cast returns a new QueueList', () { diff --git a/pkgs/collection/test/utils.dart b/pkgs/collection/test/utils.dart deleted file mode 100644 index 2c80fe2b..00000000 --- a/pkgs/collection/test/utils.dart +++ /dev/null @@ -1,13 +0,0 @@ -// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file -// for details. All rights reserved. Use of this source code is governed by a -// BSD-style license that can be found in the LICENSE file. - -/// A hack to determine whether we are running in a Dart 2 runtime. -final bool isDart2 = _isTypeArgString(''); -bool _isTypeArgString(T arg) { - try { - return T == String; - } catch (_) { - return false; - } -} From 295c33fcb33411040d576d72c60851885a31c1f3 Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Fri, 19 Jun 2020 10:42:01 -0700 Subject: [PATCH 125/235] Prepare to publish (dart-lang/collection#141) --- pkgs/collection/CHANGELOG.md | 2 +- pkgs/collection/pubspec.yaml | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 57e02ae5..19e4773f 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,4 +1,4 @@ -## 1.14.13-dev +## 1.14.13 * Deprecate `mapMap`. The Map interface has a `map` call and map literals can use for-loop elements which supersede this method. diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index e11c1e65..8949dd96 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.14.13-dev +version: 1.14.13 description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection From 53f44a23ca7e3ddbcb15993f36b844d4f9519144 Mon Sep 17 00:00:00 2001 From: Jacob MacDonald Date: Tue, 23 Jun 2020 11:35:31 -0700 Subject: [PATCH 126/235] Merge the null_safety branch into master (dart-lang/collection#143) Migrates the package to null safety --- pkgs/collection/.travis.yml | 46 +++-- pkgs/collection/CHANGELOG.md | 11 ++ pkgs/collection/analysis_options.yaml | 3 + pkgs/collection/lib/src/algorithms.dart | 39 ++-- .../collection/lib/src/canonicalized_map.dart | 24 +-- .../combined_wrappers/combined_iterable.dart | 25 ++- .../src/combined_wrappers/combined_list.dart | 5 +- .../src/combined_wrappers/combined_map.dart | 4 +- .../lib/src/empty_unmodifiable_set.dart | 18 +- pkgs/collection/lib/src/equality.dart | 73 ++++---- pkgs/collection/lib/src/functions.dart | 52 +++--- pkgs/collection/lib/src/iterable_zip.dart | 10 +- pkgs/collection/lib/src/priority_queue.dart | 42 ++--- pkgs/collection/lib/src/queue_list.dart | 37 ++-- pkgs/collection/lib/src/union_set.dart | 12 +- .../lib/src/union_set_controller.dart | 5 +- .../lib/src/unmodifiable_wrappers.dart | 6 +- pkgs/collection/lib/src/wrappers.dart | 110 ++++++----- pkgs/collection/pubspec.yaml | 86 ++++++++- pkgs/collection/test/algorithms_test.dart | 28 ++- .../test/canonicalized_map_test.dart | 7 +- pkgs/collection/test/comparators_test.dart | 6 +- pkgs/collection/test/functions_test.dart | 45 +++-- pkgs/collection/test/priority_queue_test.dart | 5 +- pkgs/collection/test/queue_list_test.dart | 6 +- .../test/union_set_controller_test.dart | 4 +- pkgs/collection/test/union_set_test.dart | 2 +- .../test/unmodifiable_collection_test.dart | 4 +- pkgs/collection/test/wrapper_test.dart | 175 +++++++++++------- 29 files changed, 533 insertions(+), 357 deletions(-) diff --git a/pkgs/collection/.travis.yml b/pkgs/collection/.travis.yml index 96ba17a0..5801d68c 100644 --- a/pkgs/collection/.travis.yml +++ b/pkgs/collection/.travis.yml @@ -1,27 +1,43 @@ language: dart dart: -- 2.3.0 - dev -dart_task: -- test - -matrix: +jobs: include: - # Only validate formatting using the dev release - - dart: dev - dart_task: dartfmt - - dart: dev - dart_task: - dartanalyzer: --fatal-infos --fatal-warnings . - - dart: 2.3.0 - dart_task: - dartanalyzer: --fatal-warnings . + - stage: analyze_and_format + name: "Analyze lib/" + dart: dev + os: linux + script: dartanalyzer --fatal-warnings --fatal-infos lib/ + - stage: analyze_and_format + name: "Analyze test/" + dart: dev + os: linux + script: dartanalyzer --enable-experiment=non-nullable --fatal-warnings --fatal-infos test/ + - stage: analyze_and_format + name: "Format" + dart: dev + os: linux + script: dartfmt -n --set-exit-if-changed . + - stage: test + name: "Vm Tests" + dart: dev + os: linux + script: pub run --enable-experiment=non-nullable test -p vm + - stage: test + name: "Web Tests" + dart: dev + os: linux + script: pub run --enable-experiment=non-nullable test -p chrome + +stages: + - analyze_and_format + - test # Only building master means that we don't run two builds for each pull request. branches: - only: [master] + only: [master, null_safety] # Incremental pub cache and builds. cache: diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 19e4773f..3a472416 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,14 @@ +## 1.15.0-nnbd + +Pre-release for the null safety migration of this package. + +Note that `1.15.0` may not be the final stable null safety release version, +we reserve the right to release it as a `2.0.0` breaking change. + +This release will be pinned to only allow pre-release sdk versions starting +from `2.9.0-dev.18.0`, which is the first version where this package will +appear in the null safety allow list. + ## 1.14.13 * Deprecate `mapMap`. The Map interface has a `map` call and map literals can diff --git a/pkgs/collection/analysis_options.yaml b/pkgs/collection/analysis_options.yaml index 05bafc19..5adddb12 100644 --- a/pkgs/collection/analysis_options.yaml +++ b/pkgs/collection/analysis_options.yaml @@ -5,6 +5,9 @@ analyzer: unused_import: error unused_local_variable: error dead_code: error + enable-experiment: + - non-nullable + linter: rules: # Errors diff --git a/pkgs/collection/lib/src/algorithms.dart b/pkgs/collection/lib/src/algorithms.dart index cb6a03f1..616be856 100644 --- a/pkgs/collection/lib/src/algorithms.dart +++ b/pkgs/collection/lib/src/algorithms.dart @@ -16,7 +16,8 @@ import 'utils.dart'; /// (`CastError` on some SDK versions). /// /// Returns -1 if [value] is not in the list by default. -int binarySearch(List sortedList, T value, {int Function(T, T) compare}) { +int binarySearch(List sortedList, T value, + {int Function(T, T)? compare}) { compare ??= defaultCompare(); var min = 0; var max = sortedList.length; @@ -46,7 +47,7 @@ int binarySearch(List sortedList, T value, {int Function(T, T) compare}) { /// /// Returns [sortedList.length] if all the items in [sortedList] compare less /// than [value]. -int lowerBound(List sortedList, T value, {int Function(T, T) compare}) { +int lowerBound(List sortedList, T value, {int Function(T, T)? compare}) { compare ??= defaultCompare(); var min = 0; var max = sortedList.length; @@ -66,7 +67,7 @@ int lowerBound(List sortedList, T value, {int Function(T, T) compare}) { /// Shuffles a list randomly. /// /// A sub-range of a list can be shuffled by providing [start] and [end]. -void shuffle(List list, [int start = 0, int end]) { +void shuffle(List list, [int start = 0, int? end]) { var random = math.Random(); end ??= list.length; var length = end - start; @@ -80,7 +81,7 @@ void shuffle(List list, [int start = 0, int end]) { } /// Reverses a list, or a part of a list, in-place. -void reverse(List list, [int start = 0, int end]) { +void reverse(List list, [int start = 0, int? end]) { end ??= list.length; _reverse(list, start, end); } @@ -111,7 +112,7 @@ void _reverse(List list, int start, int end) { /// This insertion sort is stable: Equal elements end up in the same order /// as they started in. void insertionSort(List list, - {int Function(T, T) compare, int start = 0, int end}) { + {int Function(T, T)? compare, int start = 0, int? end}) { // If the same method could have both positional and named optional // parameters, this should be (list, [start, end], {compare}). compare ??= defaultCompare(); @@ -155,8 +156,8 @@ const int _MERGE_SORT_LIMIT = 32; /// This merge sort is stable: Equal elements end up in the same order /// as they started in. void mergeSort(List list, - {int start = 0, int end, int Function(T, T) compare}) { - end ??= list.length; + {int start = 0, int? end, int Function(T, T)? compare}) { + end = RangeError.checkValidRange(start, end, list.length); compare ??= defaultCompare(); var length = end - start; @@ -175,12 +176,12 @@ void mergeSort(List list, var firstLength = middle - start; var secondLength = end - middle; // secondLength is always the same as firstLength, or one greater. - var scratchSpace = List(secondLength); - _mergeSort(list, compare, middle, end, scratchSpace, 0); + var scratchSpace = List.filled(secondLength, list[start]); + _mergeSort(list, compare, middle, end, scratchSpace, 0); var firstTarget = end - firstLength; - _mergeSort(list, compare, start, middle, list, firstTarget); - _merge(compare, list, firstTarget, end, scratchSpace, 0, secondLength, list, - start); + _mergeSort(list, compare, start, middle, list, firstTarget); + _merge(compare, list, firstTarget, end, scratchSpace, 0, secondLength, + list, start); } /// Performs an insertion sort into a potentially different list than the @@ -198,7 +199,7 @@ void _movingInsertionSort(List list, int Function(T, T) compare, var max = targetOffset + i; while (min < max) { var mid = min + ((max - min) >> 1); - if (compare(element, target[mid]) < 0) { + if (compare(element, target[mid]!) < 0) { max = mid; } else { min = mid + 1; @@ -220,7 +221,7 @@ void _mergeSort(List list, int Function(T, T) compare, int start, int end, List target, int targetOffset) { var length = end - start; if (length < _MERGE_SORT_LIMIT) { - _movingInsertionSort(list, compare, start, end, target, targetOffset); + _movingInsertionSort(list, compare, start, end, target, targetOffset); return; } var middle = start + (length >> 1); @@ -229,11 +230,11 @@ void _mergeSort(List list, int Function(T, T) compare, int start, int end, // Here secondLength >= firstLength (differs by at most one). var targetMiddle = targetOffset + firstLength; // Sort the second half into the end of the target area. - _mergeSort(list, compare, middle, end, target, targetMiddle); + _mergeSort(list, compare, middle, end, target, targetMiddle); // Sort the first half into the end of the source area. - _mergeSort(list, compare, start, middle, list, middle); + _mergeSort(list, compare, start, middle, list, middle); // Merge the two parts into the target area. - _merge(compare, list, middle, middle + firstLength, target, targetMiddle, + _merge(compare, list, middle, middle + firstLength, target, targetMiddle, targetMiddle + secondLength, target, targetOffset); } @@ -261,7 +262,7 @@ void _merge( var cursor1 = firstStart; var cursor2 = secondStart; var firstElement = firstList[cursor1++]; - var secondElement = secondList[cursor2++]; + var secondElement = secondList[cursor2++]!; while (true) { if (compare(firstElement, secondElement) <= 0) { target[targetOffset++] = firstElement; @@ -270,7 +271,7 @@ void _merge( } else { target[targetOffset++] = secondElement; if (cursor2 != secondEnd) { - secondElement = secondList[cursor2++]; + secondElement = secondList[cursor2++]!; continue; } // Second list empties first. Flushing first list here. diff --git a/pkgs/collection/lib/src/canonicalized_map.dart b/pkgs/collection/lib/src/canonicalized_map.dart index 16e55e46..280050ca 100644 --- a/pkgs/collection/lib/src/canonicalized_map.dart +++ b/pkgs/collection/lib/src/canonicalized_map.dart @@ -12,13 +12,10 @@ import 'utils.dart'; /// more efficient than a [LinkedHashMap] with a custom equality operator /// because it only canonicalizes each key once, rather than doing so for each /// comparison. -/// -/// By default, `null` is allowed as a key. It can be forbidden via the -/// `isValidKey` parameter. class CanonicalizedMap implements Map { final C Function(K) _canonicalize; - final bool Function(Object) _isValidKeyFn; + final bool Function(K)? _isValidKeyFn; final _base = >{}; @@ -31,7 +28,7 @@ class CanonicalizedMap implements Map { /// methods that take arbitrary objects. It can be used to filter out keys /// that can't be canonicalized. CanonicalizedMap(C Function(K key) canonicalize, - {bool Function(Object key) isValidKey}) + {bool Function(K key)? isValidKey}) : _canonicalize = canonicalize, _isValidKeyFn = isValidKey; @@ -45,14 +42,14 @@ class CanonicalizedMap implements Map { /// methods that take arbitrary objects. It can be used to filter out keys /// that can't be canonicalized. CanonicalizedMap.from(Map other, C Function(K key) canonicalize, - {bool Function(Object key) isValidKey}) + {bool Function(K key)? isValidKey}) : _canonicalize = canonicalize, _isValidKeyFn = isValidKey { addAll(other); } @override - V operator [](Object key) { + V? operator [](Object? key) { if (!_isValidKey(key)) return null; var pair = _base[_canonicalize(key as K)]; return pair == null ? null : pair.last; @@ -82,13 +79,13 @@ class CanonicalizedMap implements Map { } @override - bool containsKey(Object key) { + bool containsKey(Object? key) { if (!_isValidKey(key)) return false; return _base.containsKey(_canonicalize(key as K)); } @override - bool containsValue(Object value) => + bool containsValue(Object? value) => _base.values.any((pair) => pair.last == value); @override @@ -124,7 +121,7 @@ class CanonicalizedMap implements Map { } @override - V remove(Object key) { + V? remove(Object? key) { if (!_isValidKey(key)) return null; var pair = _base.remove(_canonicalize(key as K)); return pair == null ? null : pair.last; @@ -138,7 +135,7 @@ class CanonicalizedMap implements Map { Map retype() => cast(); @override - V update(K key, V Function(V) update, {V Function() ifAbsent}) => _base + V update(K key, V Function(V) update, {V Function()? ifAbsent}) => _base .update(_canonicalize(key), (pair) => Pair(key, update(pair.last)), ifAbsent: ifAbsent == null ? null : () => Pair(key, ifAbsent())) .last; @@ -178,9 +175,8 @@ class CanonicalizedMap implements Map { return result.toString(); } - bool _isValidKey(Object key) => - (key == null || key is K) && - (_isValidKeyFn == null || _isValidKeyFn(key)); + bool _isValidKey(Object? key) => + (key is K) && (_isValidKeyFn == null || _isValidKeyFn!(key)); } /// A collection used to identify cyclic maps during toString() calls. diff --git a/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart b/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart index ce19c209..8c5f091d 100644 --- a/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart +++ b/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart @@ -26,7 +26,7 @@ class CombinedIterableView extends IterableBase { // efficient implementation instead of running through the entire iterator. @override - bool contains(Object element) => _iterables.any((i) => i.contains(element)); + bool contains(Object? element) => _iterables.any((i) => i.contains(element)); @override bool get isEmpty => _iterables.every((i) => i.isEmpty); @@ -45,17 +45,30 @@ class _CombinedIterator implements Iterator { /// avoid instantiating unnecessary iterators. final Iterator> _iterators; - _CombinedIterator(this._iterators); + /// The current iterator in [_iterators], or `null` if done iterating. + Iterator? _currentItr; + + _CombinedIterator(this._iterators) { + _advance(); + } @override - T get current => _iterators.current?.current; + T get current => _iterators.current.current; @override bool moveNext() { - var current = _iterators.current; - if (current != null && current.moveNext()) { + if (_currentItr == null) return false; + if (_currentItr!.moveNext()) { return true; + } else { + _advance(); } - return _iterators.moveNext() && moveNext(); + return moveNext(); + } + + /// Advances [_currentItr] or sets it to `null` if there are no more entries + /// in [_iterators]. + void _advance() { + _currentItr = _iterators.moveNext() ? _iterators.current : null; } } diff --git a/pkgs/collection/lib/src/combined_wrappers/combined_list.dart b/pkgs/collection/lib/src/combined_wrappers/combined_list.dart index 961ea422..e341be49 100644 --- a/pkgs/collection/lib/src/combined_wrappers/combined_list.dart +++ b/pkgs/collection/lib/src/combined_wrappers/combined_list.dart @@ -15,7 +15,7 @@ import 'dart:collection'; /// both `O(lists)` rather than `O(1)`. A [CombinedListView] is unmodifiable. class CombinedListView extends ListBase implements UnmodifiableListView { - static void _throw() { + static Never _throw() { throw UnsupportedError('Cannot modify an unmodifiable List'); } @@ -57,9 +57,8 @@ class CombinedListView extends ListBase } @override - bool remove(Object element) { + bool remove(Object? element) { _throw(); - return null; } @override diff --git a/pkgs/collection/lib/src/combined_wrappers/combined_map.dart b/pkgs/collection/lib/src/combined_wrappers/combined_map.dart index 8e2f7292..ae720068 100644 --- a/pkgs/collection/lib/src/combined_wrappers/combined_map.dart +++ b/pkgs/collection/lib/src/combined_wrappers/combined_map.dart @@ -29,7 +29,7 @@ class CombinedMapView extends UnmodifiableMapBase { CombinedMapView(this._maps); @override - V operator [](Object key) { + V? operator [](Object? key) { for (var map in _maps) { // Avoid two hash lookups on a positive hit. var value = map[key]; @@ -75,7 +75,7 @@ class _DeduplicatingIterableView extends IterableBase { // duplicates. @override - bool contains(Object element) => _iterable.contains(element); + bool contains(Object? element) => _iterable.contains(element); @override bool get isEmpty => _iterable.isEmpty; diff --git a/pkgs/collection/lib/src/empty_unmodifiable_set.dart b/pkgs/collection/lib/src/empty_unmodifiable_set.dart index 86cbbb42..6d7f03c8 100644 --- a/pkgs/collection/lib/src/empty_unmodifiable_set.dart +++ b/pkgs/collection/lib/src/empty_unmodifiable_set.dart @@ -25,18 +25,18 @@ class EmptyUnmodifiableSet extends IterableBase @override EmptyUnmodifiableSet cast() => EmptyUnmodifiableSet(); @override - bool contains(Object element) => false; + bool contains(Object? element) => false; @override - bool containsAll(Iterable other) => other.isEmpty; + bool containsAll(Iterable other) => other.isEmpty; @override Iterable followedBy(Iterable other) => Set.from(other); @override - E lookup(Object element) => null; + E? lookup(Object? element) => null; @deprecated @override EmptyUnmodifiableSet retype() => EmptyUnmodifiableSet(); @override - E singleWhere(bool Function(E) test, {E Function() orElse}) => + E singleWhere(bool Function(E) test, {E Function()? orElse}) => super.singleWhere(test); @override Iterable whereType() => EmptyUnmodifiableSet(); @@ -45,9 +45,9 @@ class EmptyUnmodifiableSet extends IterableBase @override Set union(Set other) => Set.from(other); @override - Set intersection(Set other) => {}; + Set intersection(Set other) => {}; @override - Set difference(Set other) => {}; + Set difference(Set other) => {}; @override bool add(E value) => _throw(); @@ -56,13 +56,13 @@ class EmptyUnmodifiableSet extends IterableBase @override void clear() => _throw(); @override - bool remove(Object element) => _throw(); + bool remove(Object? element) => _throw(); @override - void removeAll(Iterable elements) => _throw(); + void removeAll(Iterable elements) => _throw(); @override void removeWhere(bool Function(E) test) => _throw(); @override void retainWhere(bool Function(E) test) => _throw(); @override - void retainAll(Iterable elements) => _throw(); + void retainAll(Iterable elements) => _throw(); } diff --git a/pkgs/collection/lib/src/equality.dart b/pkgs/collection/lib/src/equality.dart index b003a06c..eba3841a 100644 --- a/pkgs/collection/lib/src/equality.dart +++ b/pkgs/collection/lib/src/equality.dart @@ -27,7 +27,7 @@ abstract class Equality { /// /// Some implementations may be restricted to only work on specific types /// of objects. - bool isValidKey(Object o); + bool isValidKey(Object? o); } /// Equality of objects based on derived values. @@ -52,7 +52,7 @@ class EqualityBy implements Equality { final Equality _inner; EqualityBy(F Function(E) comparisonKey, - [Equality inner = const DefaultEquality()]) + [Equality inner = const DefaultEquality()]) : _comparisonKey = comparisonKey, _inner = inner; @@ -64,7 +64,7 @@ class EqualityBy implements Equality { int hash(E e) => _inner.hash(_comparisonKey(e)); @override - bool isValidKey(Object o) { + bool isValidKey(Object? o) { if (o is E) { final value = _comparisonKey(o); return value is F && _inner.isValidKey(value); @@ -84,11 +84,11 @@ class EqualityBy implements Equality { class DefaultEquality implements Equality { const DefaultEquality(); @override - bool equals(Object e1, Object e2) => e1 == e2; + bool equals(Object? e1, Object? e2) => e1 == e2; @override - int hash(Object e) => e.hashCode; + int hash(Object? e) => e.hashCode; @override - bool isValidKey(Object o) => true; + bool isValidKey(Object? o) => true; } /// Equality of objects that compares only the identity of the objects. @@ -99,7 +99,7 @@ class IdentityEquality implements Equality { @override int hash(E e) => identityHashCode(e); @override - bool isValidKey(Object o) => true; + bool isValidKey(Object? o) => true; } /// Equality on iterables. @@ -110,13 +110,13 @@ class IdentityEquality implements Equality { /// even if the [isValidKey] returns `false` for `null`. /// The [hash] of `null` is `null.hashCode`. class IterableEquality implements Equality> { - final Equality _elementEquality; + final Equality _elementEquality; const IterableEquality( - [Equality elementEquality = const DefaultEquality()]) + [Equality elementEquality = const DefaultEquality()]) : _elementEquality = elementEquality; @override - bool equals(Iterable elements1, Iterable elements2) { + bool equals(Iterable? elements1, Iterable? elements2) { if (identical(elements1, elements2)) return true; if (elements1 == null || elements2 == null) return false; var it1 = elements1.iterator; @@ -130,7 +130,7 @@ class IterableEquality implements Equality> { } @override - int hash(Iterable elements) { + int hash(Iterable? elements) { if (elements == null) return null.hashCode; // Jenkins's one-at-a-time hash function. var hash = 0; @@ -147,7 +147,7 @@ class IterableEquality implements Equality> { } @override - bool isValidKey(Object o) => o is Iterable; + bool isValidKey(Object? o) => o is Iterable; } /// Equality on lists. @@ -163,11 +163,12 @@ class IterableEquality implements Equality> { /// The [hash] of `null` is `null.hashCode`. class ListEquality implements Equality> { final Equality _elementEquality; - const ListEquality([Equality elementEquality = const DefaultEquality()]) + const ListEquality( + [Equality elementEquality = const DefaultEquality()]) : _elementEquality = elementEquality; @override - bool equals(List list1, List list2) { + bool equals(List? list1, List? list2) { if (identical(list1, list2)) return true; if (list1 == null || list2 == null) return false; var length = list1.length; @@ -179,7 +180,7 @@ class ListEquality implements Equality> { } @override - int hash(List list) { + int hash(List? list) { if (list == null) return null.hashCode; // Jenkins's one-at-a-time hash function. // This code is almost identical to the one in IterableEquality, except @@ -198,10 +199,10 @@ class ListEquality implements Equality> { } @override - bool isValidKey(Object o) => o is List; + bool isValidKey(Object? o) => o is List; } -abstract class _UnorderedEquality> +abstract class _UnorderedEquality?> implements Equality { final Equality _elementEquality; @@ -250,13 +251,13 @@ abstract class _UnorderedEquality> /// Two iterables are considered equal if they have the same number of elements, /// and the elements of one set can be paired with the elements /// of the other iterable, so that each pair are equal. -class UnorderedIterableEquality extends _UnorderedEquality> { +class UnorderedIterableEquality extends _UnorderedEquality?> { const UnorderedIterableEquality( - [Equality elementEquality = const DefaultEquality()]) + [Equality elementEquality = const DefaultEquality()]) : super(elementEquality); @override - bool isValidKey(Object o) => o is Iterable; + bool isValidKey(Object? o) => o is Iterable; } /// Equality of sets. @@ -271,12 +272,13 @@ class UnorderedIterableEquality extends _UnorderedEquality> { /// The [equals] and [hash] methods accepts `null` values, /// even if the [isValidKey] returns `false` for `null`. /// The [hash] of `null` is `null.hashCode`. -class SetEquality extends _UnorderedEquality> { - const SetEquality([Equality elementEquality = const DefaultEquality()]) +class SetEquality extends _UnorderedEquality?> { + const SetEquality( + [Equality elementEquality = const DefaultEquality()]) : super(elementEquality); @override - bool isValidKey(Object o) => o is Set; + bool isValidKey(Object? o) => o is Set; } /// Internal class used by [MapEquality]. @@ -314,13 +316,13 @@ class MapEquality implements Equality> { final Equality _keyEquality; final Equality _valueEquality; const MapEquality( - {Equality keys = const DefaultEquality(), - Equality values = const DefaultEquality()}) + {Equality keys = const DefaultEquality(), + Equality values = const DefaultEquality()}) : _keyEquality = keys, _valueEquality = values; @override - bool equals(Map map1, Map map2) { + bool equals(Map? map1, Map? map2) { if (identical(map1, map2)) return true; if (map1 == null || map2 == null) return false; var length = map1.length; @@ -341,12 +343,12 @@ class MapEquality implements Equality> { } @override - int hash(Map map) { + int hash(Map? map) { if (map == null) return null.hashCode; var hash = 0; for (var key in map.keys) { var keyHash = _keyEquality.hash(key); - var valueHash = _valueEquality.hash(map[key]); + var valueHash = _valueEquality.hash(map[key] as V); hash = (hash + 3 * keyHash + 7 * valueHash) & _HASH_MASK; } hash = (hash + (hash << 3)) & _HASH_MASK; @@ -356,7 +358,7 @@ class MapEquality implements Equality> { } @override - bool isValidKey(Object o) => o is Map; + bool isValidKey(Object? o) => o is Map; } /// Combines several equalities into a single equality. @@ -396,7 +398,7 @@ class MultiEquality implements Equality { } @override - bool isValidKey(Object o) { + bool isValidKey(Object? o) { for (var eq in _equalities) { if (eq.isValidKey(o)) return true; } @@ -422,7 +424,7 @@ class MultiEquality implements Equality { class DeepCollectionEquality implements Equality { final Equality _base; final bool _unordered; - const DeepCollectionEquality([Equality base = const DefaultEquality()]) + const DeepCollectionEquality([Equality base = const DefaultEquality()]) : _base = base, _unordered = false; @@ -430,7 +432,7 @@ class DeepCollectionEquality implements Equality { /// iterables are not considered important. That is, lists and iterables are /// treated as unordered iterables. const DeepCollectionEquality.unordered( - [Equality base = const DefaultEquality()]) + [Equality base = const DefaultEquality()]) : _base = base, _unordered = true; @@ -457,7 +459,7 @@ class DeepCollectionEquality implements Equality { } @override - int hash(Object o) { + int hash(Object? o) { if (o is Set) return SetEquality(this).hash(o); if (o is Map) return MapEquality(keys: this, values: this).hash(o); if (!_unordered) { @@ -470,7 +472,8 @@ class DeepCollectionEquality implements Equality { } @override - bool isValidKey(Object o) => o is Iterable || o is Map || _base.isValidKey(o); + bool isValidKey(Object? o) => + o is Iterable || o is Map || _base.isValidKey(o); } /// String equality that's insensitive to differences in ASCII case. @@ -487,5 +490,5 @@ class CaseInsensitiveEquality implements Equality { int hash(String string) => hashIgnoreAsciiCase(string); @override - bool isValidKey(Object object) => object is String; + bool isValidKey(Object? object) => object is String; } diff --git a/pkgs/collection/lib/src/functions.dart b/pkgs/collection/lib/src/functions.dart index 5fbef305..8f401d4c 100644 --- a/pkgs/collection/lib/src/functions.dart +++ b/pkgs/collection/lib/src/functions.dart @@ -13,13 +13,13 @@ import 'utils.dart'; /// [value] are used as the values for the new map. @Deprecated('Use Map.map or a for loop in a Map literal.') Map mapMap(Map map, - {K2 Function(K1, V1) key, V2 Function(K1, V1) value}) { - key ??= (mapKey, _) => mapKey as K2; - value ??= (_, mapValue) => mapValue as V2; + {K2 Function(K1, V1)? key, V2 Function(K1, V1)? value}) { + var keyFn = key ?? (mapKey, _) => mapKey as K2; + var valueFn = value ?? (_, mapValue) => mapValue as V2; var result = {}; map.forEach((mapKey, mapValue) { - result[key(mapKey, mapValue)] = value(mapKey, mapValue); + result[keyFn(mapKey, mapValue)] = valueFn(mapKey, mapValue); }); return result; } @@ -30,13 +30,13 @@ Map mapMap(Map map, /// select the value that goes into the resulting map based on the two original /// values. If [value] is omitted, the value from [map2] is used. Map mergeMaps(Map map1, Map map2, - {V Function(V, V) value}) { + {V Function(V, V)? value}) { var result = Map.from(map1); if (value == null) return result..addAll(map2); map2.forEach((key, mapValue) { result[key] = - result.containsKey(key) ? value(result[key], mapValue) : mapValue; + result.containsKey(key) ? value(result[key] as V, mapValue) : mapValue; }); return result; } @@ -60,12 +60,14 @@ Map> groupBy(Iterable values, T Function(S) key) { /// The values returned by [orderBy] are compared using the [compare] function. /// If [compare] is omitted, values must implement [Comparable] and they are /// compared using their [Comparable.compareTo]. -S minBy(Iterable values, T Function(S) orderBy, - {int Function(T, T) compare}) { +/// +/// Returns `null` if [values] is empty. +S? minBy(Iterable values, T Function(S) orderBy, + {int Function(T, T)? compare}) { compare ??= defaultCompare(); - S minValue; - T minOrderBy; + S? minValue; + T? minOrderBy; for (var element in values) { var elementOrderBy = orderBy(element); if (minOrderBy == null || compare(elementOrderBy, minOrderBy) < 0) { @@ -82,15 +84,17 @@ S minBy(Iterable values, T Function(S) orderBy, /// The values returned by [orderBy] are compared using the [compare] function. /// If [compare] is omitted, values must implement [Comparable] and they are /// compared using their [Comparable.compareTo]. -S maxBy(Iterable values, T Function(S) orderBy, - {int Function(T, T) compare}) { +/// +/// Returns `null` if [values] is empty. +S? maxBy(Iterable values, T Function(S?) orderBy, + {int? Function(T, T)? compare}) { compare ??= defaultCompare(); - S maxValue; - T maxOrderBy; + S? maxValue; + T? maxOrderBy; for (var element in values) { var elementOrderBy = orderBy(element); - if (maxOrderBy == null || compare(elementOrderBy, maxOrderBy) > 0) { + if (maxOrderBy == null || compare(elementOrderBy, maxOrderBy)! > 0) { maxValue = element; maxOrderBy = elementOrderBy; } @@ -125,9 +129,9 @@ Map> transitiveClosure(Map> graph) { for (var vertex1 in keys) { for (var vertex2 in keys) { for (var vertex3 in keys) { - if (result[vertex2].contains(vertex1) && - result[vertex1].contains(vertex3)) { - result[vertex2].add(vertex3); + if (result[vertex2]!.contains(vertex1) && + result[vertex1]!.contains(vertex3)) { + result[vertex2]!.add(vertex3); } } } @@ -153,7 +157,7 @@ List> stronglyConnectedComponents(Map> graph) { // // [Tarjan's algorithm]: https://en.wikipedia.org/wiki/Tarjan%27s_strongly_connected_components_algorithm var index = 0; - var stack = []; + var stack = []; var result = >[]; // The order of these doesn't matter, so we use un-linked implementations to @@ -170,22 +174,22 @@ List> stronglyConnectedComponents(Map> graph) { stack.add(vertex); onStack.add(vertex); - for (var successor in graph[vertex]) { + for (var successor in graph[vertex]!) { if (!indices.containsKey(successor)) { strongConnect(successor); - lowLinks[vertex] = math.min(lowLinks[vertex], lowLinks[successor]); + lowLinks[vertex] = math.min(lowLinks[vertex]!, lowLinks[successor]!); } else if (onStack.contains(successor)) { - lowLinks[vertex] = math.min(lowLinks[vertex], lowLinks[successor]); + lowLinks[vertex] = math.min(lowLinks[vertex]!, lowLinks[successor]!); } } if (lowLinks[vertex] == indices[vertex]) { var component = {}; - T neighbor; + T? neighbor; do { neighbor = stack.removeLast(); onStack.remove(neighbor); - component.add(neighbor); + component.add(neighbor as T); } while (neighbor != vertex); result.add(component); } diff --git a/pkgs/collection/lib/src/iterable_zip.dart b/pkgs/collection/lib/src/iterable_zip.dart index db382537..940b5e75 100644 --- a/pkgs/collection/lib/src/iterable_zip.dart +++ b/pkgs/collection/lib/src/iterable_zip.dart @@ -30,7 +30,7 @@ class IterableZip extends IterableBase> { class _IteratorZip implements Iterator> { final List> _iterators; - List _current; + List? _current; _IteratorZip(List> iterators) : _iterators = iterators; @@ -43,13 +43,11 @@ class _IteratorZip implements Iterator> { return false; } } - _current = List(_iterators.length); - for (var i = 0; i < _iterators.length; i++) { - _current[i] = _iterators[i].current; - } + _current = List.generate(_iterators.length, (i) => _iterators[i].current, + growable: false); return true; } @override - List get current => _current; + List get current => _current!; } diff --git a/pkgs/collection/lib/src/priority_queue.dart b/pkgs/collection/lib/src/priority_queue.dart index 31ff828f..d4355b02 100644 --- a/pkgs/collection/lib/src/priority_queue.dart +++ b/pkgs/collection/lib/src/priority_queue.dart @@ -21,7 +21,8 @@ abstract class PriorityQueue { /// If [comparison] is omitted, it defaults to [Comparable.compare]. If this /// is the case, `E` must implement [Comparable], and this is checked at /// runtime for every comparison. - factory PriorityQueue([int Function(E, E) comparison]) = HeapPriorityQueue; + factory PriorityQueue([int Function(E, E)? comparison]) = + HeapPriorityQueue; /// Number of elements in the queue. int get length; @@ -128,7 +129,7 @@ class HeapPriorityQueue implements PriorityQueue { final Comparator comparison; /// List implementation of a heap. - List _queue = List(_INITIAL_CAPACITY); + List _queue = List.filled(_INITIAL_CAPACITY, null); /// Number of elements in queue. /// @@ -144,7 +145,7 @@ class HeapPriorityQueue implements PriorityQueue { /// If [comparison] is omitted, it defaults to [Comparable.compare]. If this /// is the case, `E` must implement [Comparable], and this is checked at /// runtime for every comparison. - HeapPriorityQueue([int Function(E, E) comparison]) + HeapPriorityQueue([int Function(E, E)? comparison]) : comparison = comparison ?? defaultCompare(); @override @@ -173,7 +174,7 @@ class HeapPriorityQueue implements PriorityQueue { @override E get first { if (_length == 0) throw StateError('No such element'); - return _queue[0]; + return _queue[0]!; } @override @@ -207,13 +208,13 @@ class HeapPriorityQueue implements PriorityQueue { var length = _length; _queue = const []; _length = 0; - return result.take(length); + return result.take(length).cast(); } @override E removeFirst() { if (_length == 0) throw StateError('No such element'); - var result = _queue[0]; + var result = _queue[0]!; var last = _removeLast(); if (_length > 0) { _bubbleDown(last, 0); @@ -222,19 +223,14 @@ class HeapPriorityQueue implements PriorityQueue { } @override - List toList() { - var list = [] - ..length = _length - ..setRange(0, _length, _queue) - ..sort(comparison); - return list; - } + List toList() => + List.generate(_length, (i) => _queue[i]!)..sort(comparison); @override Set toSet() { - Set set = SplayTreeSet(comparison); + var set = SplayTreeSet(comparison); for (var i = 0; i < _length; i++) { - set.add(_queue[i]); + set.add(_queue[i]!); } return set; } @@ -271,7 +267,7 @@ class HeapPriorityQueue implements PriorityQueue { // in the heap will also have lower priority. do { var index = position - 1; - var element = _queue[index]; + var element = _queue[index]!; var comp = comparison(element, object); if (comp == 0) return index; if (comp < 0) { @@ -298,7 +294,7 @@ class HeapPriorityQueue implements PriorityQueue { E _removeLast() { var newLength = _length - 1; - var last = _queue[newLength]; + var last = _queue[newLength]!; _queue[newLength] = null; _length = newLength; return last; @@ -312,7 +308,7 @@ class HeapPriorityQueue implements PriorityQueue { void _bubbleUp(E element, int index) { while (index > 0) { var parentIndex = (index - 1) ~/ 2; - var parent = _queue[parentIndex]; + var parent = _queue[parentIndex]!; if (comparison(element, parent) > 0) break; _queue[index] = parent; index = parentIndex; @@ -329,10 +325,10 @@ class HeapPriorityQueue implements PriorityQueue { var rightChildIndex = index * 2 + 2; while (rightChildIndex < _length) { var leftChildIndex = rightChildIndex - 1; - var leftChild = _queue[leftChildIndex]; - var rightChild = _queue[rightChildIndex]; + var leftChild = _queue[leftChildIndex]!; + var rightChild = _queue[rightChildIndex]!; var comp = comparison(leftChild, rightChild); - var minChildIndex; + int minChildIndex; E minChild; if (comp < 0) { minChild = leftChild; @@ -352,7 +348,7 @@ class HeapPriorityQueue implements PriorityQueue { } var leftChildIndex = rightChildIndex - 1; if (leftChildIndex < _length) { - var child = _queue[leftChildIndex]; + var child = _queue[leftChildIndex]!; var comp = comparison(element, child); if (comp > 0) { _queue[index] = child; @@ -368,7 +364,7 @@ class HeapPriorityQueue implements PriorityQueue { void _grow() { var newCapacity = _queue.length * 2 + 1; if (newCapacity < _INITIAL_CAPACITY) newCapacity = _INITIAL_CAPACITY; - var newQueue = List(newCapacity); + var newQueue = List.filled(newCapacity, null); newQueue.setRange(0, _length, _queue); _queue = newQueue; } diff --git a/pkgs/collection/lib/src/queue_list.dart b/pkgs/collection/lib/src/queue_list.dart index eb80cbe6..2bda02b7 100644 --- a/pkgs/collection/lib/src/queue_list.dart +++ b/pkgs/collection/lib/src/queue_list.dart @@ -26,7 +26,7 @@ class QueueList extends Object with ListMixin implements Queue { } static const int _INITIAL_CAPACITY = 8; - List _table; + late List _table; int _head; int _tail; @@ -34,7 +34,7 @@ class QueueList extends Object with ListMixin implements Queue { /// /// If [initialCapacity] is given, prepare the queue for at least that many /// elements. - QueueList([int initialCapacity]) + QueueList([int? initialCapacity]) : _head = 0, _tail = 0 { if (initialCapacity == null || initialCapacity < _INITIAL_CAPACITY) { @@ -43,11 +43,11 @@ class QueueList extends Object with ListMixin implements Queue { initialCapacity = _nextPowerOf2(initialCapacity); } assert(_isPowerOf2(initialCapacity)); - _table = List(initialCapacity); + _table = List.filled(initialCapacity, null); } - // An internal constructor for use by _CastQueueList. - QueueList._(); + /// An internal constructor for use by [_CastQueueList]. + QueueList._(this._head, this._tail, this._table); /// Create a queue initially containing the elements of [source]. factory QueueList.from(Iterable source) { @@ -127,7 +127,7 @@ class QueueList extends Object with ListMixin implements Queue { @override E removeFirst() { if (_head == _tail) throw StateError('No element'); - var result = _table[_head]; + var result = _table[_head] as E; _table[_head] = null; _head = (_head + 1) & (_table.length - 1); return result; @@ -137,7 +137,7 @@ class QueueList extends Object with ListMixin implements Queue { E removeLast() { if (_head == _tail) throw StateError('No element'); _tail = (_tail - 1) & (_table.length - 1); - var result = _table[_tail]; + var result = _table[_tail]!; _table[_tail] = null; return result; } @@ -150,6 +150,15 @@ class QueueList extends Object with ListMixin implements Queue { @override set length(int value) { if (value < 0) throw RangeError('Length $value may not be negative.'); + if (value > length) { + try { + null as E; + } on TypeError { + throw UnsupportedError( + 'The length can only be increased when the element type is ' + 'nullable, but the current element type is `$E`.'); + } + } var delta = value - length; if (delta >= 0) { @@ -177,7 +186,7 @@ class QueueList extends Object with ListMixin implements Queue { throw RangeError('Index $index must be in the range [0..$length).'); } - return _table[(_head + index) & (_table.length - 1)]; + return _table[(_head + index) & (_table.length - 1)] as E; } @override @@ -220,7 +229,7 @@ class QueueList extends Object with ListMixin implements Queue { /// Grow the table when full. void _grow() { - var newTable = List(_table.length * 2); + var newTable = List.filled(_table.length * 2, null); var split = _table.length - _head; newTable.setRange(0, split, _table, _head); newTable.setRange(split, split + _head, _table, 0); @@ -229,7 +238,7 @@ class QueueList extends Object with ListMixin implements Queue { _table = newTable; } - int _writeToList(List target) { + int _writeToList(List target) { assert(target.length >= length); if (_head <= _tail) { var length = _tail - _head; @@ -251,7 +260,7 @@ class QueueList extends Object with ListMixin implements Queue { // expansion. newElementCount += newElementCount >> 1; var newCapacity = _nextPowerOf2(newElementCount); - var newTable = List(newCapacity); + var newTable = List.filled(newCapacity, null); _tail = _writeToList(newTable); _table = newTable; _head = 0; @@ -261,9 +270,9 @@ class QueueList extends Object with ListMixin implements Queue { class _CastQueueList extends QueueList { final QueueList _delegate; - _CastQueueList(this._delegate) : super._() { - _table = _delegate._table.cast(); - } + // Assigns invalid values for head/tail because it uses the delegate to hold + // the real values, but they are non-null fields. + _CastQueueList(this._delegate) : super._(-1, -1, _delegate._table.cast()); @override int get _head => _delegate._head; diff --git a/pkgs/collection/lib/src/union_set.dart b/pkgs/collection/lib/src/union_set.dart index 1b76645d..208a2a55 100644 --- a/pkgs/collection/lib/src/union_set.dart +++ b/pkgs/collection/lib/src/union_set.dart @@ -62,15 +62,15 @@ class UnionSet extends SetBase with UnmodifiableSetMixin { } @override - bool contains(Object element) => _sets.any((set) => set.contains(element)); + bool contains(Object? element) => _sets.any((set) => set.contains(element)); @override - E lookup(Object element) { + E? lookup(Object? element) { if (element == null) return null; - - return _sets - .map((set) => set.lookup(element)) - .firstWhere((result) => result != null, orElse: () => null); + for (var set in _sets) { + var result = set.lookup(element); + if (result != null) return result; + } } @override diff --git a/pkgs/collection/lib/src/union_set_controller.dart b/pkgs/collection/lib/src/union_set_controller.dart index 6c04cef1..ef9bb8d8 100644 --- a/pkgs/collection/lib/src/union_set_controller.dart +++ b/pkgs/collection/lib/src/union_set_controller.dart @@ -23,8 +23,7 @@ import 'union_set.dart'; /// ``` class UnionSetController { /// The [UnionSet] that provides a view of the union of sets in [this]. - UnionSet get set => _set; - UnionSet _set; + late final UnionSet set; /// The sets whose union is exposed through [set]. final _sets = >{}; @@ -35,7 +34,7 @@ class UnionSetController { /// disjoint—that is, that they contain no elements in common. This makes /// many operations including [length] more efficient. UnionSetController({bool disjoint = false}) { - _set = UnionSet(_sets, disjoint: disjoint); + set = UnionSet(_sets, disjoint: disjoint); } /// Adds the contents of [component] to [set]. diff --git a/pkgs/collection/lib/src/unmodifiable_wrappers.dart b/pkgs/collection/lib/src/unmodifiable_wrappers.dart index 7a7898ef..96551e85 100644 --- a/pkgs/collection/lib/src/unmodifiable_wrappers.dart +++ b/pkgs/collection/lib/src/unmodifiable_wrappers.dart @@ -58,7 +58,7 @@ abstract class NonGrowableListMixin implements List { /// Throws an [UnsupportedError]; /// operations that change the length of the list are disallowed. @override - bool remove(Object value) => _throw(); + bool remove(Object? value) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the length of the list are disallowed. @@ -134,7 +134,7 @@ abstract class UnmodifiableSetMixin implements Set { /// Throws an [UnsupportedError]; /// operations that change the set are disallowed. @override - bool remove(Object value) => _throw(); + bool remove(Object? value) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the set are disallowed. @@ -187,7 +187,7 @@ abstract class UnmodifiableMapMixin implements Map { /// Throws an [UnsupportedError]; /// operations that change the map are disallowed. @override - V remove(Object key) => _throw(); + V remove(Object? key) => _throw(); /// Throws an [UnsupportedError]; /// operations that change the map are disallowed. diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index 77340732..14e2d8c3 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -23,7 +23,7 @@ abstract class _DelegatingIterableBase implements Iterable { Iterable cast() => _base.cast(); @override - bool contains(Object element) => _base.contains(element); + bool contains(Object? element) => _base.contains(element); @override E elementAt(int index) => _base.elementAt(index); @@ -38,7 +38,7 @@ abstract class _DelegatingIterableBase implements Iterable { E get first => _base.first; @override - E firstWhere(bool Function(E) test, {E Function() orElse}) => + E firstWhere(bool Function(E) test, {E Function()? orElse}) => _base.firstWhere(test, orElse: orElse); @override @@ -67,7 +67,7 @@ abstract class _DelegatingIterableBase implements Iterable { E get last => _base.last; @override - E lastWhere(bool Function(E) test, {E Function() orElse}) => + E lastWhere(bool Function(E) test, {E Function()? orElse}) => _base.lastWhere(test, orElse: orElse); @override @@ -86,7 +86,7 @@ abstract class _DelegatingIterableBase implements Iterable { E get single => _base.single; @override - E singleWhere(bool Function(E) test, {E Function() orElse}) { + E singleWhere(bool Function(E) test, {E Function()? orElse}) { return _base.singleWhere(test, orElse: orElse); } @@ -165,7 +165,7 @@ class DelegatingList extends DelegatingIterable implements List { @Deprecated('Use list.cast instead.') static List typed(List base) => base.cast(); - List get _listBase => _base; + List get _listBase => _base as List; @override E operator [](int index) => _listBase[index]; @@ -200,7 +200,7 @@ class DelegatingList extends DelegatingIterable implements List { } @override - void fillRange(int start, int end, [E fillValue]) { + void fillRange(int start, int end, [E? fillValue]) { _listBase.fillRange(start, end, fillValue); } @@ -237,11 +237,11 @@ class DelegatingList extends DelegatingIterable implements List { } @override - int lastIndexOf(E element, [int start]) => + int lastIndexOf(E element, [int? start]) => _listBase.lastIndexOf(element, start); @override - int lastIndexWhere(bool Function(E) test, [int start]) => + int lastIndexWhere(bool Function(E) test, [int? start]) => _listBase.lastIndexWhere(test, start); @override @@ -250,7 +250,7 @@ class DelegatingList extends DelegatingIterable implements List { } @override - bool remove(Object value) => _listBase.remove(value); + bool remove(Object? value) => _listBase.remove(value); @override E removeAt(int index) => _listBase.removeAt(index); @@ -296,17 +296,17 @@ class DelegatingList extends DelegatingIterable implements List { } @override - void shuffle([math.Random random]) { + void shuffle([math.Random? random]) { _listBase.shuffle(random); } @override - void sort([int Function(E, E) compare]) { + void sort([int Function(E, E)? compare]) { _listBase.sort(compare); } @override - List sublist(int start, [int end]) => _listBase.sublist(start, end); + List sublist(int start, [int? end]) => _listBase.sublist(start, end); } /// A [Set] that delegates all operations to a base set. @@ -330,7 +330,7 @@ class DelegatingSet extends DelegatingIterable implements Set { @Deprecated('Use set.cast instead.') static Set typed(Set base) => base.cast(); - Set get _setBase => _base; + Set get _setBase => _base as Set; @override bool add(E value) => _setBase.add(value); @@ -349,22 +349,22 @@ class DelegatingSet extends DelegatingIterable implements Set { } @override - bool containsAll(Iterable other) => _setBase.containsAll(other); + bool containsAll(Iterable other) => _setBase.containsAll(other); @override - Set difference(Set other) => _setBase.difference(other); + Set difference(Set other) => _setBase.difference(other); @override - Set intersection(Set other) => _setBase.intersection(other); + Set intersection(Set other) => _setBase.intersection(other); @override - E lookup(Object element) => _setBase.lookup(element); + E? lookup(Object? element) => _setBase.lookup(element); @override - bool remove(Object value) => _setBase.remove(value); + bool remove(Object? value) => _setBase.remove(value); @override - void removeAll(Iterable elements) { + void removeAll(Iterable elements) { _setBase.removeAll(elements); } @@ -374,7 +374,7 @@ class DelegatingSet extends DelegatingIterable implements Set { } @override - void retainAll(Iterable elements) { + void retainAll(Iterable elements) { _setBase.retainAll(elements); } @@ -416,7 +416,7 @@ class DelegatingQueue extends DelegatingIterable implements Queue { @Deprecated('Use queue.cast instead.') static Queue typed(Queue base) => base.cast(); - Queue get _baseQueue => _base; + Queue get _baseQueue => _base as Queue; @override void add(E value) { @@ -447,7 +447,7 @@ class DelegatingQueue extends DelegatingIterable implements Queue { } @override - bool remove(Object object) => _baseQueue.remove(object); + bool remove(Object? object) => _baseQueue.remove(object); @override void removeWhere(bool Function(E) test) { @@ -495,7 +495,7 @@ class DelegatingMap implements Map { static Map typed(Map base) => base.cast(); @override - V operator [](Object key) => _base[key]; + V? operator [](Object? key) => _base[key]; @override void operator []=(K key, V value) { @@ -521,10 +521,10 @@ class DelegatingMap implements Map { Map cast() => _base.cast(); @override - bool containsKey(Object key) => _base.containsKey(key); + bool containsKey(Object? key) => _base.containsKey(key); @override - bool containsValue(Object value) => _base.containsValue(value); + bool containsValue(Object? value) => _base.containsValue(value); @override Iterable> get entries => _base.entries; @@ -555,7 +555,7 @@ class DelegatingMap implements Map { _base.putIfAbsent(key, ifAbsent); @override - V remove(Object key) => _base.remove(key); + V? remove(Object? key) => _base.remove(key); @override void removeWhere(bool Function(K, V) test) => _base.removeWhere(test); @@ -570,7 +570,7 @@ class DelegatingMap implements Map { String toString() => _base.toString(); @override - V update(K key, V Function(V) update, {V Function() ifAbsent}) => + V update(K key, V Function(V) update, {V Function()? ifAbsent}) => _base.update(key, update, ifAbsent: ifAbsent); @override @@ -590,7 +590,7 @@ class MapKeySet extends _DelegatingIterableBase with UnmodifiableSetMixin { final Map _baseMap; - MapKeySet(Map base) : _baseMap = base; + MapKeySet(this._baseMap); @override Iterable get _base => _baseMap.keys; @@ -604,7 +604,7 @@ class MapKeySet extends _DelegatingIterableBase } @override - bool contains(Object element) => _baseMap.containsKey(element); + bool contains(Object? element) => _baseMap.containsKey(element); @override bool get isEmpty => _baseMap.isEmpty; @@ -619,7 +619,7 @@ class MapKeySet extends _DelegatingIterableBase String toString() => "{${_base.join(', ')}}"; @override - bool containsAll(Iterable other) => other.every(contains); + bool containsAll(Iterable other) => other.every(contains); /// Returns a new set with the the elements of [this] that are not in [other]. /// @@ -629,7 +629,7 @@ class MapKeySet extends _DelegatingIterableBase /// Note that the returned set will use the default equality operation, which /// may be different than the equality operation [this] uses. @override - Set difference(Set other) => + Set difference(Set other) => where((element) => !other.contains(element)).toSet(); /// Returns a new set which is the intersection between [this] and [other]. @@ -640,12 +640,12 @@ class MapKeySet extends _DelegatingIterableBase /// Note that the returned set will use the default equality operation, which /// may be different than the equality operation [this] uses. @override - Set intersection(Set other) => where(other.contains).toSet(); + Set intersection(Set other) => where(other.contains).toSet(); /// Throws an [UnsupportedError] since there's no corresponding method for /// [Map]s. @override - E lookup(Object element) => + E lookup(Object? element) => throw UnsupportedError("MapKeySet doesn't support lookup()."); @deprecated @@ -688,14 +688,12 @@ class MapValueSet extends _DelegatingIterableBase implements Set { final Map _baseMap; final K Function(V) _keyForValue; - /// Creates a new [MapValueSet] based on [base]. + /// Creates a new [MapValueSet] based on [_baseMap]. /// - /// [keyForValue] returns the key in the map that should be associated with + /// [_keyForValue] returns the key in the map that should be associated with /// the given value. The set's notion of equality is identical to the equality - /// of the return values of [keyForValue]. - MapValueSet(Map base, K Function(V) keyForValue) - : _baseMap = base, - _keyForValue = keyForValue; + /// of the return values of [_keyForValue]. + MapValueSet(this._baseMap, this._keyForValue); @override Iterable get _base => _baseMap.values; @@ -709,9 +707,9 @@ class MapValueSet extends _DelegatingIterableBase implements Set { } @override - bool contains(Object element) { - if (element != null && element is! V) return false; - var key = _keyForValue(element as V); + bool contains(Object? element) { + if (element is! V) return false; + var key = _keyForValue(element); return _baseMap.containsKey(key); } @@ -746,7 +744,7 @@ class MapValueSet extends _DelegatingIterableBase implements Set { void clear() => _baseMap.clear(); @override - bool containsAll(Iterable other) => other.every(contains); + bool containsAll(Iterable other) => other.every(contains); /// Returns a new set with the the elements of [this] that are not in [other]. /// @@ -756,7 +754,7 @@ class MapValueSet extends _DelegatingIterableBase implements Set { /// Note that the returned set will use the default equality operation, which /// may be different than the equality operation [this] uses. @override - Set difference(Set other) => + Set difference(Set other) => where((element) => !other.contains(element)).toSet(); /// Returns a new set which is the intersection between [this] and [other]. @@ -767,20 +765,20 @@ class MapValueSet extends _DelegatingIterableBase implements Set { /// Note that the returned set will use the default equality operation, which /// may be different than the equality operation [this] uses. @override - Set intersection(Set other) => where(other.contains).toSet(); + Set intersection(Set other) => where(other.contains).toSet(); @override - V lookup(Object element) { - if (element != null && element is! V) return null; - var key = _keyForValue(element as V); + V? lookup(Object? element) { + if (element is! V) return null; + var key = _keyForValue(element); return _baseMap[key]; } @override - bool remove(Object element) { - if (element != null && element is! V) return false; - var key = _keyForValue(element as V); + bool remove(Object? element) { + if (element is! V) return false; + var key = _keyForValue(element); if (!_baseMap.containsKey(key)) return false; _baseMap.remove(key); @@ -788,7 +786,7 @@ class MapValueSet extends _DelegatingIterableBase implements Set { } @override - void removeAll(Iterable elements) => elements.forEach(remove); + void removeAll(Iterable elements) => elements.forEach(remove); @override void removeWhere(bool Function(V) test) { @@ -800,14 +798,14 @@ class MapValueSet extends _DelegatingIterableBase implements Set { } @override - void retainAll(Iterable elements) { + void retainAll(Iterable elements) { var valuesToRetain = Set.identity(); for (var element in elements) { - if (element != null && element is! V) continue; - var key = _keyForValue(element as V); + if (element is! V) continue; + var key = _keyForValue(element); if (!_baseMap.containsKey(key)) continue; - valuesToRetain.add(_baseMap[key]); + valuesToRetain.add(_baseMap[key]!); } var keysToRemove = []; diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 8949dd96..638740bc 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,12 +1,94 @@ name: collection -version: 1.14.13 +version: 1.15.0-nnbd description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection environment: - sdk: '>=2.3.0 <3.0.0' + sdk: '>=2.9.0-18.0 <2.9.0' dev_dependencies: pedantic: ^1.0.0 test: ^1.0.0 + +dependency_overrides: + async: + git: + url: git://github.com/dart-lang/async.git + ref: null_safety + boolean_selector: + git: + url: git://github.com/dart-lang/boolean_selector.git + ref: null_safety + charcode: + git: + url: git://github.com/dart-lang/charcode.git + ref: null_safety + js: + git: + url: git://github.com/dart-lang/sdk.git + path: pkg/js + matcher: + git: + url: git://github.com/dart-lang/matcher.git + ref: null_safety + meta: + git: + url: git://github.com/dart-lang/sdk.git + ref: null_safety-pkgs + path: pkg/meta + path: + git: + url: git://github.com/dart-lang/path.git + ref: null_safety + pedantic: + git: + url: git://github.com/dart-lang/pedantic.git + ref: null_safety + pool: + git: + url: git://github.com/dart-lang/pool.git + ref: null_safety + source_maps: + git: + url: git://github.com/dart-lang/source_maps.git + ref: null_safety + source_map_stack_trace: + git: + url: git://github.com/dart-lang/source_map_stack_trace.git + ref: null_safety + source_span: + git: + url: git://github.com/dart-lang/source_span.git + ref: null_safety + stack_trace: + git: + url: git://github.com/dart-lang/stack_trace.git + ref: null_safety + stream_channel: + git: + url: git://github.com/dart-lang/stream_channel.git + ref: null_safety + string_scanner: + git: + url: git://github.com/dart-lang/string_scanner.git + ref: null_safety + term_glyph: + git: + url: git://github.com/dart-lang/term_glyph.git + ref: null_safety + test_api: + git: + url: git://github.com/dart-lang/test.git + ref: null_safety + path: pkgs/test_api + test_core: + git: + url: git://github.com/dart-lang/test.git + ref: null_safety + path: pkgs/test_core + test: + git: + url: git://github.com/dart-lang/test.git + ref: null_safety + path: pkgs/test diff --git a/pkgs/collection/test/algorithms_test.dart b/pkgs/collection/test/algorithms_test.dart index 0d0d4143..7ab096fd 100644 --- a/pkgs/collection/test/algorithms_test.dart +++ b/pkgs/collection/test/algorithms_test.dart @@ -157,10 +157,10 @@ void main() { test('insertionSortRandom', () { var random = Random(); for (var i = 0; i < 25; i++) { - var list = List(i); - for (var j = 0; j < i; j++) { - list[j] = random.nextInt(25); // Expect some equal elements. - } + var list = [ + for (var j = 0; j < i; j++) + random.nextInt(25) // Expect some equal elements. + ]; insertionSort(list); for (var j = 1; j < i; j++) { expect(list[j - 1], lessThanOrEqualTo(list[j])); @@ -195,10 +195,10 @@ void main() { test('MergeSortRandom', () { var random = Random(); for (var i = 0; i < 250; i += 1) { - var list = List(i); - for (var j = 0; j < i; j++) { - list[j] = random.nextInt(i); // Expect some equal elements. - } + var list = [ + for (var j = 0; j < i; j++) + random.nextInt(i) // Expect some equal elements. + ]; mergeSort(list); for (var j = 1; j < i; j++) { expect(list[j - 1], lessThanOrEqualTo(list[j])); @@ -212,14 +212,13 @@ void main() { // larger case where the internal moving insertion sort is used // larger cases with multiple splittings, numbers just around a power of 2. for (var size in [8, 50, 511, 512, 513]) { - var list = List(size); // Class OC compares using id. // With size elements with id's in the range 0..size/4, a number of // collisions are guaranteed. These should be sorted so that the 'order' // part of the objects are still in order. - for (var i = 0; i < size; i++) { - list[i] = OC(random.nextInt(size >> 2), i); - } + var list = [ + for (var i = 0; i < size; i++) OC(random.nextInt(size >> 2), i) + ]; mergeSort(list); var prev = list[0]; for (var i = 1; i < size; i++) { @@ -255,10 +254,7 @@ void main() { test('MergeSortSpecialCases', () { for (var size in [511, 512, 513]) { // All equal. - var list = List(size); - for (var i = 0; i < size; i++) { - list[i] = OC(0, i); - } + var list = [for (var i = 0; i < size; i++) OC(0, i)]; mergeSort(list); for (var i = 0; i < size; i++) { expect(list[i].order, equals(i)); diff --git a/pkgs/collection/test/canonicalized_map_test.dart b/pkgs/collection/test/canonicalized_map_test.dart index 2d42b09f..e5bd34eb 100644 --- a/pkgs/collection/test/canonicalized_map_test.dart +++ b/pkgs/collection/test/canonicalized_map_test.dart @@ -7,11 +7,10 @@ import 'package:test/test.dart'; void main() { group('with an empty canonicalized map', () { - CanonicalizedMap map; + late CanonicalizedMap map; setUp(() { - map = CanonicalizedMap(int.parse, - isValidKey: (s) => RegExp(r'^\d+$').hasMatch(s as String)); + map = CanonicalizedMap(int.parse, isValidKey: RegExp(r'^\d+$').hasMatch); }); test('canonicalizes keys on set and get', () { @@ -164,7 +163,7 @@ void main() { var map; setUp(() { map = CanonicalizedMap(int.parse, - isValidKey: (s) => RegExp(r'^\d+$').hasMatch(s as String)); + isValidKey: RegExp(r'^\d+$').hasMatch); }); test('for an empty map', () { diff --git a/pkgs/collection/test/comparators_test.dart b/pkgs/collection/test/comparators_test.dart index b8dcb3e9..ab487116 100644 --- a/pkgs/collection/test/comparators_test.dart +++ b/pkgs/collection/test/comparators_test.dart @@ -57,7 +57,7 @@ void main() { '~' ]; - List sortedBy(int Function(String, String) compare) => + List sortedBy(int Function(String, String)? compare) => strings.toList() ..shuffle() ..sort(compare); @@ -65,6 +65,7 @@ void main() { test('String.compareTo', () { expect(sortedBy(null), strings); }); + test('compareAsciiLowerCase', () { expect(sortedBy(compareAsciiLowerCase), sortedBy((a, b) { var delta = a.toLowerCase().compareTo(b.toLowerCase()); @@ -73,6 +74,7 @@ void main() { return a.compareTo(b); })); }); + test('compareAsciiUpperCase', () { expect(sortedBy(compareAsciiUpperCase), sortedBy((a, b) { var delta = a.toUpperCase().compareTo(b.toUpperCase()); @@ -88,7 +90,7 @@ void main() { // compared to non-digits. String replaceNumbers(String string) => string.replaceAllMapped(RegExp(r'\d+'), (m) { - var digits = m[0]; + var digits = m[0]!; return String.fromCharCodes([0x30, int.parse(digits), digits.length]); }); diff --git a/pkgs/collection/test/functions_test.dart b/pkgs/collection/test/functions_test.dart index a659c946..e37b9785 100644 --- a/pkgs/collection/test/functions_test.dart +++ b/pkgs/collection/test/functions_test.dart @@ -29,14 +29,18 @@ void main() { }); test("maps the map's keys", () { - // ignore: deprecated_member_use_from_same_package - expect(mapMap({'foo': 1, 'bar': 2}, key: (key, value) => key[value]), + expect( + // ignore: deprecated_member_use_from_same_package + mapMap({'foo': 1, 'bar': 2}, + key: (dynamic key, dynamic value) => key[value]), equals({'o': 1, 'r': 2})); }); test("maps the map's values", () { - // ignore: deprecated_member_use_from_same_package - expect(mapMap({'foo': 1, 'bar': 2}, value: (key, value) => key[value]), + expect( + // ignore: deprecated_member_use_from_same_package + mapMap({'foo': 1, 'bar': 2}, + value: (dynamic key, dynamic value) => key[value]), equals({'foo': 'o', 'bar': 'r'})); }); @@ -44,15 +48,17 @@ void main() { expect( // ignore: deprecated_member_use_from_same_package mapMap({'foo': 1, 'bar': 2}, - key: (key, value) => '$key$value', - value: (key, value) => key[value]), + key: (dynamic key, dynamic value) => '$key$value', + value: (dynamic key, dynamic value) => key[value]), equals({'foo1': 'o', 'bar2': 'r'})); }); }); group('mergeMaps()', () { test('with empty maps returns an empty map', () { - expect(mergeMaps({}, {}, value: expectAsync2((_, __) {}, count: 0)), + expect( + mergeMaps({}, {}, + value: expectAsync2((dynamic _, dynamic __) {}, count: 0)), isEmpty); }); @@ -69,19 +75,20 @@ void main() { test('uses the callback to merge values', () { expect( mergeMaps({'foo': 1, 'bar': 2}, {'bar': 3, 'baz': 4}, - value: (value1, value2) => value1 + value2), + value: (dynamic value1, dynamic value2) => value1 + value2), equals({'foo': 1, 'bar': 5, 'baz': 4})); }); }); group('groupBy()', () { test('returns an empty map for an empty iterable', () { - expect(groupBy([], expectAsync1((_) {}, count: 0)), isEmpty); + expect(groupBy([], expectAsync1((dynamic _) {}, count: 0)), isEmpty); }); test("groups elements by the function's return value", () { expect( - groupBy(['foo', 'bar', 'baz', 'bop', 'qux'], (string) => string[1]), + groupBy(['foo', 'bar', 'baz', 'bop', 'qux'], + (dynamic string) => string[1]), equals({ 'o': ['foo', 'bop'], 'a': ['bar', 'baz'], @@ -93,8 +100,8 @@ void main() { group('minBy()', () { test('returns null for an empty iterable', () { expect( - minBy([], expectAsync1((_) {}, count: 0), - compare: expectAsync2((_, __) => null, count: 0)), + minBy([], expectAsync1((dynamic _) {}, count: 0), + compare: expectAsync2((dynamic _, dynamic __) => -1, count: 0)), isNull); }); @@ -108,7 +115,7 @@ void main() { {'foo': 4}, {'foo': 1}, {'foo': 2} - ], (map) => map['foo']), + ], (dynamic map) => map['foo']), equals({'foo': 1})); }); @@ -121,7 +128,7 @@ void main() { {'foo': 1}, {'foo': 2} ], (map) => map, - compare: (map1, map2) => map1['foo'].compareTo(map2['foo'])), + compare: (map1, map2) => map1['foo']!.compareTo(map2['foo']!)), equals({'foo': 1})); }); }); @@ -129,8 +136,8 @@ void main() { group('maxBy()', () { test('returns null for an empty iterable', () { expect( - maxBy([], expectAsync1((_) {}, count: 0), - compare: expectAsync2((_, __) => null, count: 0)), + maxBy([], expectAsync1((dynamic _) {}, count: 0), + compare: expectAsync2((dynamic _, dynamic __) => null, count: 0)), isNull); }); @@ -144,7 +151,7 @@ void main() { {'foo': 4}, {'foo': 1}, {'foo': 2} - ], (map) => map['foo']), + ], (dynamic map) => map['foo']), equals({'foo': 5})); }); @@ -156,8 +163,8 @@ void main() { {'foo': 4}, {'foo': 1}, {'foo': 2} - ], (map) => map, - compare: (map1, map2) => map1['foo'].compareTo(map2['foo'])), + ], (map) => map!, + compare: (map1, map2) => map1['foo']!.compareTo(map2['foo']!)), equals({'foo': 5})); }); }); diff --git a/pkgs/collection/test/priority_queue_test.dart b/pkgs/collection/test/priority_queue_test.dart index 928de6ce..b38b3aa6 100644 --- a/pkgs/collection/test/priority_queue_test.dart +++ b/pkgs/collection/test/priority_queue_test.dart @@ -29,7 +29,7 @@ void testInt(PriorityQueue Function() create) { } void testCustom( - PriorityQueue Function(int Function(C, C) comparator) create) { + PriorityQueue Function(int Function(C, C)? comparator) create) { for (var count in [1, 5, 127, 128]) { testQueue('Custom:$count/null', () => create(null), List.generate(count, (x) => C(x)), C(count)); @@ -48,7 +48,8 @@ void testQueue( test(name, () => testQueueBody(create, elements, notElement)); } -void testQueueBody(PriorityQueue Function() create, List elements, notElement) { +void testQueueBody( + PriorityQueue Function() create, List elements, notElement) { var q = create(); expect(q.isEmpty, isTrue); expect(q, hasLength(0)); diff --git a/pkgs/collection/test/queue_list_test.dart b/pkgs/collection/test/queue_list_test.dart index 4814550c..21b6056b 100644 --- a/pkgs/collection/test/queue_list_test.dart +++ b/pkgs/collection/test/queue_list_test.dart @@ -134,7 +134,7 @@ void main() { }); test('grows a smaller queue', () { - var queue = QueueList.from([1, 2, 3]); + var queue = QueueList.from([1, 2, 3]); queue.length = 5; expect(queue, equals([1, 2, 3, null, null])); }); @@ -142,6 +142,10 @@ void main() { test('throws a RangeError if length is less than 0', () { expect(() => QueueList().length = -1, throwsRangeError); }); + + test('throws an UnsupportedError if element type is non-nullable', () { + expect(() => QueueList().length = 1, throwsUnsupportedError); + }); }); group('[]', () { diff --git a/pkgs/collection/test/union_set_controller_test.dart b/pkgs/collection/test/union_set_controller_test.dart index 8f5ad831..3604d628 100644 --- a/pkgs/collection/test/union_set_controller_test.dart +++ b/pkgs/collection/test/union_set_controller_test.dart @@ -7,8 +7,8 @@ import 'package:test/test.dart'; import 'package:collection/collection.dart'; void main() { - UnionSetController controller; - Set innerSet; + late UnionSetController controller; + late Set innerSet; setUp(() { innerSet = {1, 2, 3}; controller = UnionSetController()..add(innerSet); diff --git a/pkgs/collection/test/union_set_test.dart b/pkgs/collection/test/union_set_test.dart index 795cf2b4..e5da5465 100644 --- a/pkgs/collection/test/union_set_test.dart +++ b/pkgs/collection/test/union_set_test.dart @@ -35,7 +35,7 @@ void main() { }); test("map() doesn't run on any elements", () { - expect(set.map(expectAsync1((_) {}, count: 0)), isEmpty); + expect(set.map(expectAsync1((dynamic _) {}, count: 0)), isEmpty); }); }); diff --git a/pkgs/collection/test/unmodifiable_collection_test.dart b/pkgs/collection/test/unmodifiable_collection_test.dart index a7abd89c..ea93e31e 100644 --- a/pkgs/collection/test/unmodifiable_collection_test.dart +++ b/pkgs/collection/test/unmodifiable_collection_test.dart @@ -117,8 +117,8 @@ void testIterable(Iterable original, Iterable wrapped, String name) { }); test('$name - fold', () { - expect(wrapped.fold(0, (x, y) => x + y), - equals(original.fold(0, (x, y) => x + y))); + expect(wrapped.fold(0, (dynamic x, y) => x + y), + equals(original.fold(0, (dynamic x, y) => x + y))); }); test('$name - forEach', () { diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index 43ff4c2d..2612867c 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -4,7 +4,9 @@ /// Tests wrapper utilities. +@TestOn('vm') import 'dart:collection'; +import 'dart:mirrors'; import 'package:collection/collection.dart'; import 'package:test/test.dart'; @@ -35,10 +37,12 @@ abstract class Expector { // the *same* invocation on the wrapped object. dynamic equals; + InstanceMirror get mirror; + @override - dynamic noSuchMethod(Invocation i) { - equals = wrappedChecker(i); - return null; + dynamic noSuchMethod(Invocation actual) { + equals = wrappedChecker(actual); + return mirror.delegate(actual); } @override @@ -54,11 +58,14 @@ abstract class Expector { // member invocation. class InvocationChecker { final Invocation _expected; - InvocationChecker(this._expected); + final InstanceMirror _instanceMirror; + + InvocationChecker(this._expected, this._instanceMirror); + @override dynamic noSuchMethod(Invocation actual) { testInvocations(_expected, actual); - return null; + return _instanceMirror.delegate(actual); } @override @@ -77,122 +84,147 @@ final toStringInvocation = Invocation.method(#toString, const []); // argument to DelegatingIterable/Set/List/Queue. class IterableInvocationChecker extends InvocationChecker implements Iterable { - IterableInvocationChecker(Invocation expected) : super(expected); + IterableInvocationChecker(Invocation expected, InstanceMirror mirror) + : super(expected, mirror); } class ListInvocationChecker extends InvocationChecker implements List { - ListInvocationChecker(Invocation expected) : super(expected); + ListInvocationChecker(Invocation expected, InstanceMirror mirror) + : super(expected, mirror); } class SetInvocationChecker extends InvocationChecker implements Set { - SetInvocationChecker(Invocation expected) : super(expected); + SetInvocationChecker(Invocation expected, InstanceMirror mirror) + : super(expected, mirror); } class QueueInvocationChecker extends InvocationChecker implements Queue { - QueueInvocationChecker(Invocation expected) : super(expected); + QueueInvocationChecker(Invocation expected, InstanceMirror mirror) + : super(expected, mirror); } class MapInvocationChecker extends InvocationChecker implements Map { - MapInvocationChecker(Invocation expected) : super(expected); + MapInvocationChecker(Invocation expected, InstanceMirror mirror) + : super(expected, mirror); } // Expector that wraps in DelegatingIterable. class IterableExpector extends Expector implements Iterable { + @override + final InstanceMirror mirror; + + IterableExpector(Iterable realInstance) : mirror = reflect(realInstance); + @override dynamic wrappedChecker(Invocation i) => - DelegatingIterable(IterableInvocationChecker(i)); + DelegatingIterable(IterableInvocationChecker(i, mirror)); } // Expector that wraps in DelegatingList. -class ListExpector extends Expector implements List { +class ListExpector extends IterableExpector implements List { + ListExpector(List realInstance) : super(realInstance); + @override dynamic wrappedChecker(Invocation i) => - DelegatingList(ListInvocationChecker(i)); + DelegatingList(ListInvocationChecker(i, mirror)); } // Expector that wraps in DelegatingSet. -class SetExpector extends Expector implements Set { +class SetExpector extends IterableExpector implements Set { + SetExpector(Set realInstance) : super(realInstance); + @override dynamic wrappedChecker(Invocation i) => - DelegatingSet(SetInvocationChecker(i)); + DelegatingSet(SetInvocationChecker(i, mirror)); } // Expector that wraps in DelegatingSet. -class QueueExpector extends Expector implements Queue { +class QueueExpector extends IterableExpector implements Queue { + QueueExpector(Queue realInstance) : super(realInstance); + @override dynamic wrappedChecker(Invocation i) => - DelegatingQueue(QueueInvocationChecker(i)); + DelegatingQueue(QueueInvocationChecker(i, mirror)); } // Expector that wraps in DelegatingMap. class MapExpector extends Expector implements Map { + @override + final InstanceMirror mirror; + + MapExpector(Map realInstance) : mirror = reflect(realInstance); + @override dynamic wrappedChecker(Invocation i) => - DelegatingMap(MapInvocationChecker(i)); + DelegatingMap(MapInvocationChecker(i, mirror)); } // Utility values to use as arguments in calls. Null func0() => null; -Null func1(Object x) => null; -Null func2(Object x, Object y) => null; -var val = Object(); +dynamic func1(dynamic x) => null; +dynamic func2(dynamic x, dynamic y) => null; +bool boolFunc(dynamic x) => true; +Iterable expandFunc(dynamic x) => [x]; +dynamic foldFunc(dynamic previous, dynamic next) => previous; +int compareFunc(dynamic x, dynamic y) => 0; +var val = 10; void main() { - void testIterable(var expect) { - (expect..any(func1)).equals.any(func1); + void testIterable(IterableExpector expect) { + (expect..any(boolFunc)).equals.any(boolFunc); (expect..contains(val)).equals.contains(val); (expect..elementAt(0)).equals.elementAt(0); - (expect..every(func1)).equals.every(func1); - (expect..expand(func1)).equals.expand(func1); + (expect..every(boolFunc)).equals.every(boolFunc); + (expect..expand(expandFunc)).equals.expand(expandFunc); (expect..first).equals.first; // Default values of the Iterable interface will be added in the // second call to firstWhere, so we must record them in our // expectation (which doesn't have the interface implemented or // its default values). - (expect..firstWhere(func1, orElse: null)).equals.firstWhere(func1); - (expect..firstWhere(func1, orElse: func0)) + (expect..firstWhere(boolFunc, orElse: null)).equals.firstWhere(boolFunc); + (expect..firstWhere(boolFunc, orElse: func0)) .equals - .firstWhere(func1, orElse: func0); - (expect..fold(null, func2)).equals.fold(null, func2); - (expect..forEach(func1)).equals.forEach(func1); + .firstWhere(boolFunc, orElse: func0); + (expect..fold(null, foldFunc)).equals.fold(null, foldFunc); + (expect..forEach(boolFunc)).equals.forEach(boolFunc); (expect..isEmpty).equals.isEmpty; (expect..isNotEmpty).equals.isNotEmpty; (expect..iterator).equals.iterator; (expect..join('')).equals.join(); (expect..join('X')).equals.join('X'); (expect..last).equals.last; - (expect..lastWhere(func1, orElse: null)).equals.lastWhere(func1); - (expect..lastWhere(func1, orElse: func0)) + (expect..lastWhere(boolFunc, orElse: null)).equals.lastWhere(boolFunc); + (expect..lastWhere(boolFunc, orElse: func0)) .equals - .lastWhere(func1, orElse: func0); + .lastWhere(boolFunc, orElse: func0); (expect..length).equals.length; (expect..map(func1)).equals.map(func1); (expect..reduce(func2)).equals.reduce(func2); (expect..single).equals.single; - (expect..singleWhere(func1, orElse: null)).equals.singleWhere(func1); + (expect..singleWhere(boolFunc, orElse: null)).equals.singleWhere(boolFunc); (expect..skip(5)).equals.skip(5); - (expect..skipWhile(func1)).equals.skipWhile(func1); + (expect..skipWhile(boolFunc)).equals.skipWhile(boolFunc); (expect..take(5)).equals.take(5); - (expect..takeWhile(func1)).equals.takeWhile(func1); + (expect..takeWhile(boolFunc)).equals.takeWhile(boolFunc); (expect..toList(growable: true)).equals.toList(); (expect..toList(growable: true)).equals.toList(growable: true); (expect..toList(growable: false)).equals.toList(growable: false); (expect..toSet()).equals.toSet(); (expect..toString()).equals.toString(); - (expect..where(func1)).equals.where(func1); + (expect..where(boolFunc)).equals.where(boolFunc); } - void testList(var expect) { + void testList(ListExpector expect) { testIterable(expect); + // Later expects require at least 5 items + (expect..add(val)).equals.add(val); + (expect..addAll([val, val, val, val])).equals.addAll([val, val, val, val]); (expect..[4]).equals[4]; (expect..[4] = 5).equals[4] = 5; - (expect..add(val)).equals.add(val); - (expect..addAll([val])).equals.addAll([val]); (expect..asMap()).equals.asMap(); - (expect..clear()).equals.clear(); (expect..fillRange(4, 5, null)).equals.fillRange(4, 5); (expect..fillRange(4, 5, val)).equals.fillRange(4, 5, val); (expect..getRange(4, 5)).equals.getRange(4, 5); @@ -202,25 +234,30 @@ void main() { (expect..insertAll(4, [val])).equals.insertAll(4, [val]); (expect..lastIndexOf(val, null)).equals.lastIndexOf(val); (expect..lastIndexOf(val, 4)).equals.lastIndexOf(val, 4); - (expect..length = 4).equals.length = 4; - (expect..remove(val)).equals.remove(val); - (expect..removeAt(4)).equals.removeAt(4); - (expect..removeLast()).equals.removeLast(); - (expect..removeRange(4, 5)).equals.removeRange(4, 5); - (expect..removeWhere(func1)).equals.removeWhere(func1); (expect..replaceRange(4, 5, [val])).equals.replaceRange(4, 5, [val]); - (expect..retainWhere(func1)).equals.retainWhere(func1); + (expect..retainWhere(boolFunc)).equals.retainWhere(boolFunc); (expect..reversed).equals.reversed; (expect..setAll(4, [val])).equals.setAll(4, [val]); (expect..setRange(4, 5, [val], 0)).equals.setRange(4, 5, [val]); - (expect..setRange(4, 5, [val], 3)).equals.setRange(4, 5, [val], 3); - (expect..sort(null)).equals.sort(); - (expect..sort(func2)).equals.sort(func2); + (expect..setRange(4, 5, [val, val], 1)) + .equals + .setRange(4, 5, [val, val], 1); + (expect..sort()).equals.sort(); + (expect..sort(compareFunc)).equals.sort(compareFunc); (expect..sublist(4, null)).equals.sublist(4); (expect..sublist(4, 5)).equals.sublist(4, 5); + + // Do destructive apis last so other ones can work properly + (expect..removeAt(4)).equals.removeAt(4); + (expect..remove(val)).equals.remove(val); + (expect..removeLast()).equals.removeLast(); + (expect..removeRange(4, 5)).equals.removeRange(4, 5); + (expect..removeWhere(boolFunc)).equals.removeWhere(boolFunc); + (expect..length = 5).equals.length = 5; + (expect..clear()).equals.clear(); } - void testSet(var expect) { + void testSet(SetExpector expect) { testIterable(expect); var set = {}; (expect..add(val)).equals.add(val); @@ -231,25 +268,25 @@ void main() { (expect..intersection(set)).equals.intersection(set); (expect..remove(val)).equals.remove(val); (expect..removeAll([val])).equals.removeAll([val]); - (expect..removeWhere(func1)).equals.removeWhere(func1); + (expect..removeWhere(boolFunc)).equals.removeWhere(boolFunc); (expect..retainAll([val])).equals.retainAll([val]); - (expect..retainWhere(func1)).equals.retainWhere(func1); + (expect..retainWhere(boolFunc)).equals.retainWhere(boolFunc); (expect..union(set)).equals.union(set); } - void testQueue(var expect) { + void testQueue(QueueExpector expect) { testIterable(expect); (expect..add(val)).equals.add(val); (expect..addAll([val])).equals.addAll([val]); (expect..addFirst(val)).equals.addFirst(val); (expect..addLast(val)).equals.addLast(val); - (expect..clear()).equals.clear(); (expect..remove(val)).equals.remove(val); (expect..removeFirst()).equals.removeFirst(); (expect..removeLast()).equals.removeLast(); + (expect..clear()).equals.clear(); } - void testMap(var expect) { + void testMap(MapExpector expect) { var map = {}; (expect..[val]).equals[val]; (expect..[val] = val).equals[val] = val; @@ -273,7 +310,7 @@ void main() { // [setUpSet] should return a set with two elements: "foo" and "bar". void testTwoElementSet(Set Function() setUpSet) { group('with two elements', () { - Set set; + late Set set; setUp(() => set = setUpSet()); test('.any', () { @@ -313,7 +350,9 @@ void main() { }); test('.fold', () { - expect(set.fold('start', (previous, element) => previous + element), + expect( + set.fold( + 'start', (dynamic previous, element) => previous + element), equals('startfoobar')); }); @@ -434,28 +473,28 @@ void main() { } test('Iterable', () { - testIterable(IterableExpector()); + testIterable(IterableExpector([1])); }); test('List', () { - testList(ListExpector()); + testList(ListExpector([1])); }); test('Set', () { - testSet(SetExpector()); + testSet(SetExpector({1})); }); test('Queue', () { - testQueue(QueueExpector()); + testQueue(QueueExpector(Queue.of([1]))); }); test('Map', () { - testMap(MapExpector()); + testMap(MapExpector({'a': 'b'})); }); group('MapKeySet', () { - Map map; - Set set; + late Map map; + late Set set; setUp(() { map = {}; @@ -522,8 +561,8 @@ void main() { }); group('MapValueSet', () { - Map map; - Set set; + late Map map; + late Set set; setUp(() { map = {}; From 0cd152a7a4f598b50ef0c3faa5d1bf5b4af1f375 Mon Sep 17 00:00:00 2001 From: Jacob MacDonald Date: Thu, 9 Jul 2020 07:51:04 -0700 Subject: [PATCH 127/235] rename version to -nullsafety (dart-lang/collection#146) --- pkgs/collection/CHANGELOG.md | 2 +- pkgs/collection/pubspec.yaml | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 3a472416..935c5ca7 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,4 +1,4 @@ -## 1.15.0-nnbd +## 1.15.0-nullsafety Pre-release for the null safety migration of this package. diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 638740bc..42cf9b55 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.15.0-nnbd +version: 1.15.0-nullsafety description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection From d647fb71beb08b12a94395ee9d86dcde4f4b17da Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Tue, 14 Jul 2020 15:05:42 -0700 Subject: [PATCH 128/235] Remove inferred generic method invocation types (dart-lang/collection#145) See https://github.com/dart-lang/sdk/issues/41105 --- pkgs/collection/CHANGELOG.md | 2 ++ pkgs/collection/lib/src/algorithms.dart | 24 ++++++++++++------------ pkgs/collection/pubspec.yaml | 4 ++-- 3 files changed, 16 insertions(+), 14 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 935c5ca7..2ae30a1a 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,5 @@ +## 1.15.0-nullsafety.1-dev + ## 1.15.0-nullsafety Pre-release for the null safety migration of this package. diff --git a/pkgs/collection/lib/src/algorithms.dart b/pkgs/collection/lib/src/algorithms.dart index 616be856..fc7aed3a 100644 --- a/pkgs/collection/lib/src/algorithms.dart +++ b/pkgs/collection/lib/src/algorithms.dart @@ -18,7 +18,7 @@ import 'utils.dart'; /// Returns -1 if [value] is not in the list by default. int binarySearch(List sortedList, T value, {int Function(T, T)? compare}) { - compare ??= defaultCompare(); + compare ??= defaultCompare(); var min = 0; var max = sortedList.length; while (min < max) { @@ -48,7 +48,7 @@ int binarySearch(List sortedList, T value, /// Returns [sortedList.length] if all the items in [sortedList] compare less /// than [value]. int lowerBound(List sortedList, T value, {int Function(T, T)? compare}) { - compare ??= defaultCompare(); + compare ??= defaultCompare(); var min = 0; var max = sortedList.length; while (min < max) { @@ -115,7 +115,7 @@ void insertionSort(List list, {int Function(T, T)? compare, int start = 0, int? end}) { // If the same method could have both positional and named optional // parameters, this should be (list, [start, end], {compare}). - compare ??= defaultCompare(); + compare ??= defaultCompare(); end ??= list.length; for (var pos = start + 1; pos < end; pos++) { @@ -158,7 +158,7 @@ const int _MERGE_SORT_LIMIT = 32; void mergeSort(List list, {int start = 0, int? end, int Function(T, T)? compare}) { end = RangeError.checkValidRange(start, end, list.length); - compare ??= defaultCompare(); + compare ??= defaultCompare(); var length = end - start; if (length < 2) return; @@ -177,11 +177,11 @@ void mergeSort(List list, var secondLength = end - middle; // secondLength is always the same as firstLength, or one greater. var scratchSpace = List.filled(secondLength, list[start]); - _mergeSort(list, compare, middle, end, scratchSpace, 0); + _mergeSort(list, compare, middle, end, scratchSpace, 0); var firstTarget = end - firstLength; - _mergeSort(list, compare, start, middle, list, firstTarget); - _merge(compare, list, firstTarget, end, scratchSpace, 0, secondLength, - list, start); + _mergeSort(list, compare, start, middle, list, firstTarget); + _merge(compare, list, firstTarget, end, scratchSpace, 0, secondLength, list, + start); } /// Performs an insertion sort into a potentially different list than the @@ -221,7 +221,7 @@ void _mergeSort(List list, int Function(T, T) compare, int start, int end, List target, int targetOffset) { var length = end - start; if (length < _MERGE_SORT_LIMIT) { - _movingInsertionSort(list, compare, start, end, target, targetOffset); + _movingInsertionSort(list, compare, start, end, target, targetOffset); return; } var middle = start + (length >> 1); @@ -230,11 +230,11 @@ void _mergeSort(List list, int Function(T, T) compare, int start, int end, // Here secondLength >= firstLength (differs by at most one). var targetMiddle = targetOffset + firstLength; // Sort the second half into the end of the target area. - _mergeSort(list, compare, middle, end, target, targetMiddle); + _mergeSort(list, compare, middle, end, target, targetMiddle); // Sort the first half into the end of the source area. - _mergeSort(list, compare, start, middle, list, middle); + _mergeSort(list, compare, start, middle, list, middle); // Merge the two parts into the target area. - _merge(compare, list, middle, middle + firstLength, target, targetMiddle, + _merge(compare, list, middle, middle + firstLength, target, targetMiddle, targetMiddle + secondLength, target, targetOffset); } diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 42cf9b55..261c6293 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,11 +1,11 @@ name: collection -version: 1.15.0-nullsafety +version: 1.15.0-nullsafety.1-dev description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection environment: - sdk: '>=2.9.0-18.0 <2.9.0' + sdk: '>=2.9.0-20.0 <2.9.0' dev_dependencies: pedantic: ^1.0.0 From 8c7324c3dedd73348d50eb473fe42f3b33d3c14d Mon Sep 17 00:00:00 2001 From: Jacob MacDonald Date: Fri, 17 Jul 2020 09:39:05 -0700 Subject: [PATCH 129/235] prepare for the 2.9 stable sdk release of package:collection (dart-lang/collection#148) Updates the sdk constraint to <=2.9.10 --- pkgs/collection/CHANGELOG.md | 4 ++- pkgs/collection/pubspec.yaml | 65 ++++++++++-------------------------- 2 files changed, 20 insertions(+), 49 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 2ae30a1a..93b4bf97 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,4 +1,6 @@ -## 1.15.0-nullsafety.1-dev +## 1.15.0-nullsafety.1 + +* Allow the <=2.9.10 stable sdks. ## 1.15.0-nullsafety diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 261c6293..95698021 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,11 +1,11 @@ name: collection -version: 1.15.0-nullsafety.1-dev +version: 1.15.0-nullsafety.1 description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection environment: - sdk: '>=2.9.0-20.0 <2.9.0' + sdk: '>=2.9.0-20.0 <=2.9.10' dev_dependencies: pedantic: ^1.0.0 @@ -13,82 +13,51 @@ dev_dependencies: dependency_overrides: async: - git: - url: git://github.com/dart-lang/async.git - ref: null_safety + git: git://github.com/dart-lang/async.git boolean_selector: - git: - url: git://github.com/dart-lang/boolean_selector.git - ref: null_safety + git: git://github.com/dart-lang/boolean_selector.git charcode: - git: - url: git://github.com/dart-lang/charcode.git - ref: null_safety + git: git://github.com/dart-lang/charcode.git js: git: url: git://github.com/dart-lang/sdk.git path: pkg/js matcher: - git: - url: git://github.com/dart-lang/matcher.git - ref: null_safety + git: git://github.com/dart-lang/matcher.git meta: git: url: git://github.com/dart-lang/sdk.git - ref: null_safety-pkgs path: pkg/meta path: - git: - url: git://github.com/dart-lang/path.git - ref: null_safety + git: git://github.com/dart-lang/path.git pedantic: - git: - url: git://github.com/dart-lang/pedantic.git - ref: null_safety + git: git://github.com/dart-lang/pedantic.git pool: - git: - url: git://github.com/dart-lang/pool.git - ref: null_safety + git: git://github.com/dart-lang/pool.git source_maps: - git: - url: git://github.com/dart-lang/source_maps.git - ref: null_safety + git: git://github.com/dart-lang/source_maps.git source_map_stack_trace: - git: - url: git://github.com/dart-lang/source_map_stack_trace.git - ref: null_safety + git: git://github.com/dart-lang/source_map_stack_trace.git source_span: - git: - url: git://github.com/dart-lang/source_span.git - ref: null_safety + git: git://github.com/dart-lang/source_span.git stack_trace: - git: - url: git://github.com/dart-lang/stack_trace.git - ref: null_safety + git: git://github.com/dart-lang/stack_trace.git stream_channel: - git: - url: git://github.com/dart-lang/stream_channel.git - ref: null_safety + git: git://github.com/dart-lang/stream_channel.git string_scanner: - git: - url: git://github.com/dart-lang/string_scanner.git - ref: null_safety + git: git://github.com/dart-lang/string_scanner.git term_glyph: - git: - url: git://github.com/dart-lang/term_glyph.git - ref: null_safety + git: git://github.com/dart-lang/term_glyph.git test_api: git: url: git://github.com/dart-lang/test.git - ref: null_safety path: pkgs/test_api test_core: git: url: git://github.com/dart-lang/test.git - ref: null_safety path: pkgs/test_core test: git: url: git://github.com/dart-lang/test.git - ref: null_safety path: pkgs/test + typed_data: 1.3.0-nullsafety From 94b4d9acb1ee21860429523a9ba2479a7c21d529 Mon Sep 17 00:00:00 2001 From: Jacob MacDonald Date: Tue, 21 Jul 2020 19:39:04 -0700 Subject: [PATCH 130/235] prep the release for 2.10 dev sdk (dart-lang/collection#147) This is in preparation for the actual 2.10 dev sdk release. This package needs to be published and pinned in flutter simultaneously with that release. --- pkgs/collection/.travis.yml | 12 ++++++------ pkgs/collection/CHANGELOG.md | 4 ++++ pkgs/collection/pubspec.yaml | 4 ++-- 3 files changed, 12 insertions(+), 8 deletions(-) diff --git a/pkgs/collection/.travis.yml b/pkgs/collection/.travis.yml index 5801d68c..2b8d5af8 100644 --- a/pkgs/collection/.travis.yml +++ b/pkgs/collection/.travis.yml @@ -1,33 +1,33 @@ language: dart dart: -- dev +- preview/raw/2.10.0-0.2-dev jobs: include: - stage: analyze_and_format name: "Analyze lib/" - dart: dev + dart: preview/raw/2.10.0-0.2-dev os: linux script: dartanalyzer --fatal-warnings --fatal-infos lib/ - stage: analyze_and_format name: "Analyze test/" - dart: dev + dart: preview/raw/2.10.0-0.2-dev os: linux script: dartanalyzer --enable-experiment=non-nullable --fatal-warnings --fatal-infos test/ - stage: analyze_and_format name: "Format" - dart: dev + dart: preview/raw/2.10.0-0.2-dev os: linux script: dartfmt -n --set-exit-if-changed . - stage: test name: "Vm Tests" - dart: dev + dart: preview/raw/2.10.0-0.2-dev os: linux script: pub run --enable-experiment=non-nullable test -p vm - stage: test name: "Web Tests" - dart: dev + dart: preview/raw/2.10.0-0.2-dev os: linux script: pub run --enable-experiment=non-nullable test -p chrome diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 93b4bf97..6e3a8462 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.15.0-nullsafety.2 + +Update for the 2.10 dev sdk. + ## 1.15.0-nullsafety.1 * Allow the <=2.9.10 stable sdks. diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 95698021..500c5275 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,11 +1,11 @@ name: collection -version: 1.15.0-nullsafety.1 +version: 1.15.0-nullsafety.2 description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection environment: - sdk: '>=2.9.0-20.0 <=2.9.10' + sdk: '>=2.10.0-0 <2.10.0' dev_dependencies: pedantic: ^1.0.0 From 74546d088ee38e005f7929d0e42b4813d6fbdb46 Mon Sep 17 00:00:00 2001 From: Jacob MacDonald Date: Tue, 21 Jul 2020 19:48:48 -0700 Subject: [PATCH 131/235] update typed_data dep (dart-lang/collection#149) --- pkgs/collection/pubspec.yaml | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 500c5275..d9f2508e 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -60,4 +60,5 @@ dependency_overrides: git: url: git://github.com/dart-lang/test.git path: pkgs/test - typed_data: 1.3.0-nullsafety + typed_data: + git: git://github.com/dart-lang/typed_data.git From ba8b47a591d97d19c6e690b8f05f0d09dafa1218 Mon Sep 17 00:00:00 2001 From: Jacob MacDonald Date: Tue, 21 Jul 2020 20:05:16 -0700 Subject: [PATCH 132/235] depend on 2.10 branch for sdk packages (dart-lang/collection#150) --- pkgs/collection/pubspec.yaml | 2 ++ 1 file changed, 2 insertions(+) diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index d9f2508e..e45737fe 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -22,12 +22,14 @@ dependency_overrides: git: url: git://github.com/dart-lang/sdk.git path: pkg/js + ref: 2-10-pkgs matcher: git: git://github.com/dart-lang/matcher.git meta: git: url: git://github.com/dart-lang/sdk.git path: pkg/meta + ref: 2-10-pkgs path: git: git://github.com/dart-lang/path.git pedantic: From 5081b467462d3d9ba76177f587cdba9a0fa1b6b9 Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Wed, 22 Jul 2020 15:28:02 -0700 Subject: [PATCH 133/235] Dart 2.10 fixes (dart-lang/collection#151) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Update travis-ci for Dart 2.10 dev release Fix iterable wrapper test – avoid using null --- pkgs/collection/.travis.yml | 7 +------ pkgs/collection/test/wrapper_test.dart | 2 +- 2 files changed, 2 insertions(+), 7 deletions(-) diff --git a/pkgs/collection/.travis.yml b/pkgs/collection/.travis.yml index 2b8d5af8..82091ab2 100644 --- a/pkgs/collection/.travis.yml +++ b/pkgs/collection/.travis.yml @@ -1,33 +1,28 @@ language: dart dart: -- preview/raw/2.10.0-0.2-dev +- dev jobs: include: - stage: analyze_and_format name: "Analyze lib/" - dart: preview/raw/2.10.0-0.2-dev os: linux script: dartanalyzer --fatal-warnings --fatal-infos lib/ - stage: analyze_and_format name: "Analyze test/" - dart: preview/raw/2.10.0-0.2-dev os: linux script: dartanalyzer --enable-experiment=non-nullable --fatal-warnings --fatal-infos test/ - stage: analyze_and_format name: "Format" - dart: preview/raw/2.10.0-0.2-dev os: linux script: dartfmt -n --set-exit-if-changed . - stage: test name: "Vm Tests" - dart: preview/raw/2.10.0-0.2-dev os: linux script: pub run --enable-experiment=non-nullable test -p vm - stage: test name: "Web Tests" - dart: preview/raw/2.10.0-0.2-dev os: linux script: pub run --enable-experiment=non-nullable test -p chrome diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index 2612867c..f31499be 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -186,7 +186,7 @@ void main() { (expect..firstWhere(boolFunc, orElse: func0)) .equals .firstWhere(boolFunc, orElse: func0); - (expect..fold(null, foldFunc)).equals.fold(null, foldFunc); + (expect..fold(42, foldFunc)).equals.fold(42, foldFunc); (expect..forEach(boolFunc)).equals.forEach(boolFunc); (expect..isEmpty).equals.isEmpty; (expect..isNotEmpty).equals.isNotEmpty; From 51f97df5e2b95b5ebf21220ecf8798d2d4db4b7e Mon Sep 17 00:00:00 2001 From: "Lasse R.H. Nielsen" Date: Fri, 18 Sep 2020 15:52:27 +0200 Subject: [PATCH 134/235] Add `toUnorderedList` to `PriorityQueue`. (dart-lang/collection#152) Add `toUnorderedList` to `PriorityQueue`. Also change `HeapPriorityQueue` to use `==` for `contains` and `remove` checks. Fix a bad null-safety migration for HeapPriorityQueue, and add tests to ensure it works with `null` values. --- pkgs/collection/CHANGELOG.md | 9 ++ pkgs/collection/lib/src/priority_queue.dart | 87 +++++++++++---- pkgs/collection/lib/src/union_set.dart | 1 + pkgs/collection/pubspec.yaml | 4 +- pkgs/collection/test/priority_queue_test.dart | 104 ++++++++++++++++++ 5 files changed, 184 insertions(+), 21 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 6e3a8462..0c76f587 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,12 @@ +## 1.15.0-nullsafety.3 + +* Make `HeapPriorityQueue`'s `remove` and `contains` methods + use `==` for equality checks. + Previously used `comparison(a, b) == 0` as criteria, but it's possible + to have multiple elements with the same priority in a queue, so that + could remove the wrong element. + Still requires that objects that are `==` also have the same priority. + ## 1.15.0-nullsafety.2 Update for the 2.10 dev sdk. diff --git a/pkgs/collection/lib/src/priority_queue.dart b/pkgs/collection/lib/src/priority_queue.dart index d4355b02..6abce79a 100644 --- a/pkgs/collection/lib/src/priority_queue.dart +++ b/pkgs/collection/lib/src/priority_queue.dart @@ -9,6 +9,18 @@ import 'utils.dart'; /// A priority queue is a priority based work-list of elements. /// /// The queue allows adding elements, and removing them again in priority order. +/// The same object can be added to the queue more than once. +/// There is no specified ordering for objects with the same priority +/// (where the `comparison` function returns zero). +/// +/// Operations which care about object equality, [contains] and [remove], +/// use [Object.==] for testing equality. +/// In most situations this will be the same as identity ([identical]), +/// but there are types, like [String], where users can reasonably expect +/// distinct objects to represent the same value. +/// If elements override [Object.==], the `comparison` function must +/// always give equal objects the same priority, +/// otherwise [contains] or [remove] might not work correctly. abstract class PriorityQueue { /// Creates an empty [PriorityQueue]. /// @@ -36,6 +48,14 @@ abstract class PriorityQueue { /// Checks if [object] is in the queue. /// /// Returns true if the element is found. + /// + /// Uses the [Object.==] of elements in the queue to check + /// for whether they are equal to [object]. + /// Equal objects objects must have the same priority + /// according to the [comparison] function. + /// That is, if `a == b` then `comparison(a, b) == 0`. + /// If that is not the case, this check might fail to find + /// an object. bool contains(E object); /// Adds element to the queue. @@ -63,10 +83,21 @@ abstract class PriorityQueue { /// The queue must not be empty when this method is called. E removeFirst(); - /// Removes an element that compares equal to [element] in the queue. + /// Removes an element of the queue that compares equal to [element]. /// /// Returns true if an element is found and removed, /// and false if no equal element is found. + /// + /// If the queue contains more than one object equal to [element], + /// only one of them is removed. + /// + /// Uses the [Object.==] of elements in the queue to check + /// for whether they are equal to [element]. + /// Equal objects objects must have the same priority + /// according to the [comparison] function. + /// That is, if `a == b` then `comparison(a, b) == 0`. + /// If that is not the case, this check might fail to find + /// an object. bool remove(E element); /// Removes all the elements from this queue and returns them. @@ -85,6 +116,14 @@ abstract class PriorityQueue { /// removed from this queue using [removeFirst]. List toList(); + /// Returns a list of the elements of this queue in no specific order. + /// + /// The queue is not modified. + /// + /// The order of the elements is implementation specific. + /// The order may differ between different calls on the same queue. + List toUnorderedList(); + /// Return a comparator based set using the comparator of this queue. /// /// The queue is not modified. @@ -115,6 +154,8 @@ abstract class PriorityQueue { /// queue for the elements, taking O(n) time. /// * The [toList] operation effectively sorts the elements, taking O(n*log(n)) /// time. +/// * The [toUnorderedList] operation copies, but does not sort, the elements, +/// and is linear, O(n). /// * The [toSet] operation effectively adds each element to the new set, taking /// an expected O(n*log(n)) time. class HeapPriorityQueue implements PriorityQueue { @@ -148,6 +189,8 @@ class HeapPriorityQueue implements PriorityQueue { HeapPriorityQueue([int Function(E, E)? comparison]) : comparison = comparison ?? defaultCompare(); + E _elementAt(int index) => _queue[index] ?? (null as E); + @override void add(E element) { _add(element); @@ -167,14 +210,12 @@ class HeapPriorityQueue implements PriorityQueue { } @override - bool contains(E object) { - return _locate(object) >= 0; - } + bool contains(E object) => _locate(object) >= 0; @override E get first { - if (_length == 0) throw StateError('No such element'); - return _queue[0]!; + if (_length == 0) throw StateError('No element'); + return _elementAt(0); } @override @@ -213,8 +254,8 @@ class HeapPriorityQueue implements PriorityQueue { @override E removeFirst() { - if (_length == 0) throw StateError('No such element'); - var result = _queue[0]!; + if (_length == 0) throw StateError('No element'); + var result = _elementAt(0); var last = _removeLast(); if (_length > 0) { _bubbleDown(last, 0); @@ -223,18 +264,23 @@ class HeapPriorityQueue implements PriorityQueue { } @override - List toList() => - List.generate(_length, (i) => _queue[i]!)..sort(comparison); + List toList() => _toUnorderedList()..sort(comparison); @override Set toSet() { var set = SplayTreeSet(comparison); for (var i = 0; i < _length; i++) { - set.add(_queue[i]!); + set.add(_elementAt(i)); } return set; } + @override + List toUnorderedList() => _toUnorderedList(); + + List _toUnorderedList() => + [for (var i = 0; i < _length; i++) _elementAt(i)]; + /// Returns some representation of the queue. /// /// The format isn't significant, and may change in the future. @@ -254,6 +300,9 @@ class HeapPriorityQueue implements PriorityQueue { /// Find the index of an object in the heap. /// /// Returns -1 if the object is not found. + /// + /// A matching object, `o`, must satisfy that + /// `comparison(o, object) == 0 && o == object`. int _locate(E object) { if (_length == 0) return -1; // Count positions from one instead of zero. This gives the numbers @@ -267,10 +316,10 @@ class HeapPriorityQueue implements PriorityQueue { // in the heap will also have lower priority. do { var index = position - 1; - var element = _queue[index]!; + var element = _elementAt(index); var comp = comparison(element, object); - if (comp == 0) return index; - if (comp < 0) { + if (comp <= 0) { + if (comp == 0 && element == object) return index; // Element may be in subtree. // Continue with the left child, if it is there. var leftChildPosition = position * 2; @@ -294,7 +343,7 @@ class HeapPriorityQueue implements PriorityQueue { E _removeLast() { var newLength = _length - 1; - var last = _queue[newLength]!; + var last = _elementAt(newLength); _queue[newLength] = null; _length = newLength; return last; @@ -308,7 +357,7 @@ class HeapPriorityQueue implements PriorityQueue { void _bubbleUp(E element, int index) { while (index > 0) { var parentIndex = (index - 1) ~/ 2; - var parent = _queue[parentIndex]!; + var parent = _elementAt(parentIndex); if (comparison(element, parent) > 0) break; _queue[index] = parent; index = parentIndex; @@ -325,8 +374,8 @@ class HeapPriorityQueue implements PriorityQueue { var rightChildIndex = index * 2 + 2; while (rightChildIndex < _length) { var leftChildIndex = rightChildIndex - 1; - var leftChild = _queue[leftChildIndex]!; - var rightChild = _queue[rightChildIndex]!; + var leftChild = _elementAt(leftChildIndex); + var rightChild = _elementAt(rightChildIndex); var comp = comparison(leftChild, rightChild); int minChildIndex; E minChild; @@ -348,7 +397,7 @@ class HeapPriorityQueue implements PriorityQueue { } var leftChildIndex = rightChildIndex - 1; if (leftChildIndex < _length) { - var child = _queue[leftChildIndex]!; + var child = _elementAt(leftChildIndex); var comp = comparison(element, child); if (comp > 0) { _queue[index] = child; diff --git a/pkgs/collection/lib/src/union_set.dart b/pkgs/collection/lib/src/union_set.dart index 208a2a55..2fe6e3e6 100644 --- a/pkgs/collection/lib/src/union_set.dart +++ b/pkgs/collection/lib/src/union_set.dart @@ -71,6 +71,7 @@ class UnionSet extends SetBase with UnmodifiableSetMixin { var result = set.lookup(element); if (result != null) return result; } + return null; } @override diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index e45737fe..cd57acaf 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,11 +1,11 @@ name: collection -version: 1.15.0-nullsafety.2 +version: 1.15.0-nullsafety.3 description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection environment: - sdk: '>=2.10.0-0 <2.10.0' + sdk: '>=2.10.0-78 <2.10.0' dev_dependencies: pedantic: ^1.0.0 diff --git a/pkgs/collection/test/priority_queue_test.dart b/pkgs/collection/test/priority_queue_test.dart index b38b3aa6..191857db 100644 --- a/pkgs/collection/test/priority_queue_test.dart +++ b/pkgs/collection/test/priority_queue_test.dart @@ -12,6 +12,8 @@ void main() { testDefault(); testInt(() => HeapPriorityQueue()); testCustom((comparator) => HeapPriorityQueue(comparator)); + testDuplicates(); + testNullable(); } void testDefault() { @@ -157,6 +159,108 @@ void testQueueBody( expect(q.isEmpty, isTrue); } +void testDuplicates() { + // Check how the heap handles duplicate, or equal-but-not-identical, values. + test('duplicates', () { + var q = HeapPriorityQueue(compare); + var c1 = C(0); + var c2 = C(0); + + // Can contain the same element more than once. + expect(c1, equals(c2)); + expect(c1, isNot(same(c2))); + q.add(c1); + q.add(c1); + expect(q.length, 2); + expect(q.contains(c1), true); + expect(q.contains(c2), true); + expect(q.remove(c2), true); + expect(q.length, 1); + expect(q.removeFirst(), same(c1)); + + // Can contain equal elements. + q.add(c1); + q.add(c2); + expect(q.length, 2); + expect(q.contains(c1), true); + expect(q.contains(c2), true); + expect(q.remove(c1), true); + expect(q.length, 1); + expect(q.first, anyOf(same(c1), same(c2))); + }); +} + +void testNullable() { + // Check that the queue works with a nullable type, and a comparator + // which accepts `null`. + // Compares `null` before instances of `C`. + int nullCompareFirst(C? a, C? b) => a == null + ? b == null + ? 0 + : -1 + : b == null + ? 1 + : compare(a, b); + + int nullCompareLast(C? a, C? b) => a == null + ? b == null + ? 0 + : 1 + : b == null + ? -1 + : compare(a, b); + + var c1 = C(1); + var c2 = C(2); + var c3 = C(3); + + test('nulls first', () { + var q = HeapPriorityQueue(nullCompareFirst); + q.add(c2); + q.add(c1); + q.add(null); + expect(q.length, 3); + expect(q.contains(null), true); + expect(q.contains(c1), true); + expect(q.contains(c3), false); + + expect(q.removeFirst(), null); + expect(q.length, 2); + expect(q.contains(null), false); + q.add(null); + expect(q.length, 3); + expect(q.contains(null), true); + q.add(null); + expect(q.length, 4); + expect(q.contains(null), true); + expect(q.remove(null), true); + expect(q.length, 3); + expect(q.toList(), [null, c1, c2]); + }); + + test('nulls last', () { + var q = HeapPriorityQueue(nullCompareLast); + q.add(c2); + q.add(c1); + q.add(null); + expect(q.length, 3); + expect(q.contains(null), true); + expect(q.contains(c1), true); + expect(q.contains(c3), false); + expect(q.first, c1); + + q.add(null); + expect(q.length, 4); + expect(q.contains(null), true); + q.add(null); + expect(q.length, 5); + expect(q.contains(null), true); + expect(q.remove(null), true); + expect(q.length, 4); + expect(q.toList(), [c1, c2, null, null]); + }); +} + // Custom class. // Class is comparable, comparators match normal and inverse order. int compare(C c1, C c2) => c1.value - c2.value; From 6a5fd936f1bf50075ef50dd412b1569919991d31 Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Mon, 21 Sep 2020 16:07:31 -0700 Subject: [PATCH 135/235] Add a changelog entry for `toUnorderedList` (dart-lang/collection#153) This was missed in the PR which added the API. Also add a `-dev` suffix to the pubspec and changelog version numbers to make it clear that this is not published yet. --- pkgs/collection/CHANGELOG.md | 3 ++- pkgs/collection/pubspec.yaml | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 0c76f587..04fbdff1 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,5 +1,6 @@ -## 1.15.0-nullsafety.3 +## 1.15.0-nullsafety.3-dev +* Add `toUnorderedList` method on `PriorityQueue`. * Make `HeapPriorityQueue`'s `remove` and `contains` methods use `==` for equality checks. Previously used `comparison(a, b) == 0` as criteria, but it's possible diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index cd57acaf..113b39b7 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.15.0-nullsafety.3 +version: 1.15.0-nullsafety.3-dev description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection From 78598d3084526dfc2efa699e9838c3fe9c6ab3cd Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Tue, 22 Sep 2020 08:12:50 -0700 Subject: [PATCH 136/235] Prepare for the 2.11 dev SDKs (dart-lang/collection#154) Bump the upper bound to allow 2.10 stable and 2.11.0 dev SDK versions. --- pkgs/collection/CHANGELOG.md | 3 ++- pkgs/collection/pubspec.yaml | 4 ++-- 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 04fbdff1..1be3d5ae 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,5 +1,6 @@ -## 1.15.0-nullsafety.3-dev +## 1.15.0-nullsafety.3 +* Allow 2.10 stable and 2.11.0 dev SDK versions. * Add `toUnorderedList` method on `PriorityQueue`. * Make `HeapPriorityQueue`'s `remove` and `contains` methods use `==` for equality checks. diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 113b39b7..d1baef65 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,11 +1,11 @@ name: collection -version: 1.15.0-nullsafety.3-dev +version: 1.15.0-nullsafety.3 description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection environment: - sdk: '>=2.10.0-78 <2.10.0' + sdk: '>=2.10.0-78 <2.11.0' dev_dependencies: pedantic: ^1.0.0 From 4af4e35a08436e9d37056bf9554cbdf4c95b2c4a Mon Sep 17 00:00:00 2001 From: "Lasse R.H. Nielsen" Date: Fri, 25 Sep 2020 11:43:44 +0200 Subject: [PATCH 137/235] Add `unorderedElements` getter to PriorityQueue. (dart-lang/collection#155) * Add `unorderedElements` getter to PriorityQueue. * Fix bug in queue_list which made tests fail. --- pkgs/collection/lib/src/priority_queue.dart | 77 +++++++++++++++ pkgs/collection/lib/src/queue_list.dart | 12 +-- pkgs/collection/test/priority_queue_test.dart | 98 +++++++++++++++++++ 3 files changed, 179 insertions(+), 8 deletions(-) diff --git a/pkgs/collection/lib/src/priority_queue.dart b/pkgs/collection/lib/src/priority_queue.dart index 6abce79a..6952a815 100644 --- a/pkgs/collection/lib/src/priority_queue.dart +++ b/pkgs/collection/lib/src/priority_queue.dart @@ -58,6 +58,16 @@ abstract class PriorityQueue { /// an object. bool contains(E object); + /// Provides efficient access to all the elements curently in the queue. + /// + /// The operation should be performed without copying or moving + /// the elements, if at all possible. + /// + /// The elements are iterated in no particular order. + /// The order is stable as long as the queue is not modified. + /// The queue must not be modified during an iteration. + Iterable get unorderedElements; + /// Adds element to the queue. /// /// The element will become the next to be removed by [removeFirst] @@ -177,6 +187,11 @@ class HeapPriorityQueue implements PriorityQueue { /// The heap is implemented in the first [_length] entries of [_queue]. int _length = 0; + /// Modification count. + /// + /// Used to detect concurrent modifications during iteration. + int _modificationCount = 0; + /// Create a new priority queue. /// /// The [comparison] is a [Comparator] used to compare the priority of @@ -193,18 +208,23 @@ class HeapPriorityQueue implements PriorityQueue { @override void add(E element) { + _modificationCount++; _add(element); } @override void addAll(Iterable elements) { + var modified = 0; for (var element in elements) { + modified = 1; _add(element); } + _modificationCount += modified; } @override void clear() { + _modificationCount++; _queue = const []; _length = 0; } @@ -212,6 +232,16 @@ class HeapPriorityQueue implements PriorityQueue { @override bool contains(E object) => _locate(object) >= 0; + /// Provides efficient access to all the elements curently in the queue. + /// + /// The operation is performed in the order they occur + /// in the underlying heap structure. + /// + /// The order is stable as long as the queue is not modified. + /// The queue must not be modified during an iteration. + @override + Iterable get unorderedElements => _UnorderedElementsIterable(this); + @override E get first { if (_length == 0) throw StateError('No element'); @@ -231,6 +261,7 @@ class HeapPriorityQueue implements PriorityQueue { bool remove(E element) { var index = _locate(element); if (index < 0) return false; + _modificationCount++; var last = _removeLast(); if (index < _length) { var comp = comparison(last, element); @@ -243,8 +274,15 @@ class HeapPriorityQueue implements PriorityQueue { return true; } + /// Removes all the elements from this queue and returns them. + /// + /// The returned iterable has no specified order. + /// The operation does not copy the elements, + /// but instead keeps them in the existing heap structure, + /// and iterates over that directly. @override Iterable removeAll() { + _modificationCount++; var result = _queue; var length = _length; _queue = const []; @@ -255,6 +293,7 @@ class HeapPriorityQueue implements PriorityQueue { @override E removeFirst() { if (_length == 0) throw StateError('No element'); + _modificationCount++; var result = _elementAt(0); var last = _removeLast(); if (_length > 0) { @@ -418,3 +457,41 @@ class HeapPriorityQueue implements PriorityQueue { _queue = newQueue; } } + +/// Implementation of [HeapPriorityQueue.unorderedElements]. +class _UnorderedElementsIterable extends Iterable { + final HeapPriorityQueue _queue; + _UnorderedElementsIterable(this._queue); + @override + Iterator get iterator => _UnorderedElementsIterator(_queue); +} + +class _UnorderedElementsIterator implements Iterator { + final HeapPriorityQueue _queue; + final int _initialModificationCount; + E? _current; + int _index = -1; + + _UnorderedElementsIterator(this._queue) + : _initialModificationCount = _queue._modificationCount; + + @override + bool moveNext() { + if (_initialModificationCount != _queue._modificationCount) { + throw ConcurrentModificationError(_queue); + } + var nextIndex = _index + 1; + if (0 <= nextIndex && nextIndex < _queue.length) { + _current = _queue._queue[nextIndex]; + _index = nextIndex; + return true; + } + _current = null; + _index = -2; + return false; + } + + @override + E get current => + _index < 0 ? throw StateError('No element') : (_current ?? null as E); +} diff --git a/pkgs/collection/lib/src/queue_list.dart b/pkgs/collection/lib/src/queue_list.dart index 2bda02b7..14b696ef 100644 --- a/pkgs/collection/lib/src/queue_list.dart +++ b/pkgs/collection/lib/src/queue_list.dart @@ -150,14 +150,10 @@ class QueueList extends Object with ListMixin implements Queue { @override set length(int value) { if (value < 0) throw RangeError('Length $value may not be negative.'); - if (value > length) { - try { - null as E; - } on TypeError { - throw UnsupportedError( - 'The length can only be increased when the element type is ' - 'nullable, but the current element type is `$E`.'); - } + if (value > length && null is! E) { + throw UnsupportedError( + 'The length can only be increased when the element type is ' + 'nullable, but the current element type is `$E`.'); } var delta = value - length; diff --git a/pkgs/collection/test/priority_queue_test.dart b/pkgs/collection/test/priority_queue_test.dart index 191857db..ae27f98f 100644 --- a/pkgs/collection/test/priority_queue_test.dart +++ b/pkgs/collection/test/priority_queue_test.dart @@ -14,6 +14,7 @@ void main() { testCustom((comparator) => HeapPriorityQueue(comparator)); testDuplicates(); testNullable(); + testConcurrentModification(); } void testDefault() { @@ -69,6 +70,11 @@ void testQueueBody( expect(q.toList(), equals(elements)); expect(q.toSet().toList(), equals(elements)); + expect(q.toUnorderedList(), unorderedEquals(elements)); + expect(q.unorderedElements, unorderedEquals(elements)); + + var allElements = q.removeAll(); + q.addAll(allElements); for (var i = 0; i < elements.length; i++) { expect(q.contains(elements[i]), isTrue); @@ -261,6 +267,98 @@ void testNullable() { }); } +void testConcurrentModification() { + group('concurrent modification for', () { + test('add', () { + var q = HeapPriorityQueue((a, b) => a - b) + ..addAll([6, 4, 2, 3, 5, 8]); + var e = q.unorderedElements; + q.add(12); // Modifiation before creating iterator is not a problem. + var it = e.iterator; + q.add(7); // Modification after creatig iterator is a problem. + expect(it.moveNext, throwsConcurrentModificationError); + + it = e.iterator; // New iterator is not affected. + expect(it.moveNext(), true); + expect(it.moveNext(), true); + q.add(9); // Modification during iteration is a problem. + expect(it.moveNext, throwsConcurrentModificationError); + }); + + test('addAll', () { + var q = HeapPriorityQueue((a, b) => a - b) + ..addAll([6, 4, 2, 3, 5, 8]); + var e = q.unorderedElements; + q.addAll([12]); // Modifiation before creating iterator is not a problem. + var it = e.iterator; + q.addAll([7]); // Modification after creatig iterator is a problem. + expect(it.moveNext, throwsConcurrentModificationError); + it = e.iterator; // New iterator is not affected. + expect(it.moveNext(), true); + q.addAll([]); // Adding nothing is not a modification. + expect(it.moveNext(), true); + q.addAll([9]); // Modification during iteration is a problem. + expect(it.moveNext, throwsConcurrentModificationError); + }); + + test('removeFirst', () { + var q = HeapPriorityQueue((a, b) => a - b) + ..addAll([6, 4, 2, 3, 5, 8]); + var e = q.unorderedElements; + expect(q.removeFirst(), + 2); // Modifiation before creating iterator is not a problem. + var it = e.iterator; + expect(q.removeFirst(), + 3); // Modification after creatig iterator is a problem. + expect(it.moveNext, throwsConcurrentModificationError); + + it = e.iterator; // New iterator is not affected. + expect(it.moveNext(), true); + expect(it.moveNext(), true); + expect(q.removeFirst(), 4); // Modification during iteration is a problem. + expect(it.moveNext, throwsConcurrentModificationError); + }); + + test('remove', () { + var q = HeapPriorityQueue((a, b) => a - b) + ..addAll([6, 4, 2, 3, 5, 8]); + var e = q.unorderedElements; + expect(q.remove(3), true); + var it = e.iterator; + expect(q.remove(2), true); + expect(it.moveNext, throwsConcurrentModificationError); + it = e.iterator; + expect(q.remove(99), false); + expect(it.moveNext(), true); + expect(it.moveNext(), true); + expect(q.remove(5), true); + expect(it.moveNext, throwsConcurrentModificationError); + }); + + test('removeAll', () { + var q = HeapPriorityQueue((a, b) => a - b) + ..addAll([6, 4, 2, 3, 5, 8]); + var e = q.unorderedElements; + var it = e.iterator; + expect(it.moveNext(), true); + expect(it.moveNext(), true); + expect(q.removeAll(), hasLength(6)); + expect(it.moveNext, throwsConcurrentModificationError); + }); + + test('clear', () { + var q = HeapPriorityQueue((a, b) => a - b) + ..addAll([6, 4, 2, 3, 5, 8]); + var e = q.unorderedElements; + var it = e.iterator; + expect(it.moveNext(), true); + expect(it.moveNext(), true); + q.clear(); + expect(it.moveNext, throwsConcurrentModificationError); + }); + }); +} + // Custom class. // Class is comparable, comparators match normal and inverse order. int compare(C c1, C c2) => c1.value - c2.value; From 1ddb8eb35ecab5259437b2fc7650b531cad097d7 Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Fri, 25 Sep 2020 11:49:25 -0700 Subject: [PATCH 138/235] Avoid public `late final` field (dart-lang/collection#156) This had been set in the constructor because it needs to reference a field on `this`. A new capability with late final files is to allow an initializer expression referencing `this`. This approach also avoids introducing a setter to the public API. Technically it's statically breaking to remove the setter, but since it could never be called at runtime this is safe to do. --- pkgs/collection/CHANGELOG.md | 5 +++++ pkgs/collection/lib/src/union_set_controller.dart | 5 +++-- pkgs/collection/pubspec.yaml | 2 +- 3 files changed, 9 insertions(+), 3 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 1be3d5ae..1695647e 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,8 @@ +## 1.15.0-nullsafety.4-dev + +* Remove the unusable setter `UnionSetController.set=`. This was mistakenly + added to the public API but could never be called. + ## 1.15.0-nullsafety.3 * Allow 2.10 stable and 2.11.0 dev SDK versions. diff --git a/pkgs/collection/lib/src/union_set_controller.dart b/pkgs/collection/lib/src/union_set_controller.dart index ef9bb8d8..245081d3 100644 --- a/pkgs/collection/lib/src/union_set_controller.dart +++ b/pkgs/collection/lib/src/union_set_controller.dart @@ -23,7 +23,8 @@ import 'union_set.dart'; /// ``` class UnionSetController { /// The [UnionSet] that provides a view of the union of sets in [this]. - late final UnionSet set; + UnionSet get set => _set; + late final UnionSet _set; /// The sets whose union is exposed through [set]. final _sets = >{}; @@ -34,7 +35,7 @@ class UnionSetController { /// disjoint—that is, that they contain no elements in common. This makes /// many operations including [length] more efficient. UnionSetController({bool disjoint = false}) { - set = UnionSet(_sets, disjoint: disjoint); + _set = UnionSet(_sets, disjoint: disjoint); } /// Adds the contents of [component] to [set]. diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index d1baef65..e2566386 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.15.0-nullsafety.3 +version: 1.15.0-nullsafety.4-dev description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection From 8de03b2b8d93812a47b2a0231bb0c15c33977297 Mon Sep 17 00:00:00 2001 From: "Lasse R.H. Nielsen" Date: Tue, 29 Sep 2020 17:07:38 +0200 Subject: [PATCH 139/235] General clean-up and tweaks. (dart-lang/collection#157) * General clean-up and tweaks. Fixes some null-safety issues, usees some newer features (const classes can use mixins now), and replaces unnecessary `late` with a dual constructor. Fixes the `CombinedList.iterator` having potentially quadratic complexity since the default list iterator does repeated indexing. Ensure that interfaces returning an `Iterable` does not return a `Set` instead. --- pkgs/collection/lib/src/algorithms.dart | 6 +- .../collection/lib/src/canonicalized_map.dart | 92 +++++------ .../combined_wrappers/combined_iterable.dart | 42 +---- .../combined_wrappers/combined_iterator.dart | 39 +++++ .../src/combined_wrappers/combined_list.dart | 6 + .../lib/src/empty_unmodifiable_set.dart | 39 ++--- pkgs/collection/lib/src/functions.dart | 2 +- pkgs/collection/lib/src/iterable_zip.dart | 3 +- pkgs/collection/lib/src/queue_list.dart | 39 +++-- pkgs/collection/lib/src/union_set.dart | 15 +- .../lib/src/union_set_controller.dart | 13 +- .../lib/src/unmodifiable_wrappers.dart | 12 +- pkgs/collection/lib/src/utils.dart | 8 - pkgs/collection/lib/src/wrappers.dart | 145 +++++++++--------- 14 files changed, 214 insertions(+), 247 deletions(-) create mode 100644 pkgs/collection/lib/src/combined_wrappers/combined_iterator.dart diff --git a/pkgs/collection/lib/src/algorithms.dart b/pkgs/collection/lib/src/algorithms.dart index fc7aed3a..44a2b3b5 100644 --- a/pkgs/collection/lib/src/algorithms.dart +++ b/pkgs/collection/lib/src/algorithms.dart @@ -199,7 +199,7 @@ void _movingInsertionSort(List list, int Function(T, T) compare, var max = targetOffset + i; while (min < max) { var mid = min + ((max - min) >> 1); - if (compare(element, target[mid]!) < 0) { + if (compare(element, target[mid]) < 0) { max = mid; } else { min = mid + 1; @@ -262,7 +262,7 @@ void _merge( var cursor1 = firstStart; var cursor2 = secondStart; var firstElement = firstList[cursor1++]; - var secondElement = secondList[cursor2++]!; + var secondElement = secondList[cursor2++]; while (true) { if (compare(firstElement, secondElement) <= 0) { target[targetOffset++] = firstElement; @@ -271,7 +271,7 @@ void _merge( } else { target[targetOffset++] = secondElement; if (cursor2 != secondEnd) { - secondElement = secondList[cursor2++]!; + secondElement = secondList[cursor2++]; continue; } // Second list empties first. Flushing first list here. diff --git a/pkgs/collection/lib/src/canonicalized_map.dart b/pkgs/collection/lib/src/canonicalized_map.dart index 280050ca..5f97b254 100644 --- a/pkgs/collection/lib/src/canonicalized_map.dart +++ b/pkgs/collection/lib/src/canonicalized_map.dart @@ -4,8 +4,6 @@ import 'dart:collection'; -import 'utils.dart'; - /// A map whose keys are converted to canonical values of type `C`. /// /// This is useful for using case-insensitive String keys, for example. It's @@ -17,7 +15,7 @@ class CanonicalizedMap implements Map { final bool Function(K)? _isValidKeyFn; - final _base = >{}; + final _base = >{}; /// Creates an empty canonicalized map. /// @@ -52,13 +50,13 @@ class CanonicalizedMap implements Map { V? operator [](Object? key) { if (!_isValidKey(key)) return null; var pair = _base[_canonicalize(key as K)]; - return pair == null ? null : pair.last; + return pair == null ? null : pair.value; } @override void operator []=(K key, V value) { if (!_isValidKey(key)) return; - _base[_canonicalize(key)] = Pair(key, value); + _base[_canonicalize(key)] = MapEntry(key, value); } @override @@ -67,8 +65,8 @@ class CanonicalizedMap implements Map { } @override - void addEntries(Iterable> entries) => _base.addEntries( - entries.map((e) => MapEntry(_canonicalize(e.key), Pair(e.key, e.value)))); + void addEntries(Iterable> entries) => _base.addEntries(entries + .map((e) => MapEntry(_canonicalize(e.key), MapEntry(e.key, e.value)))); @override Map cast() => _base.cast(); @@ -86,15 +84,15 @@ class CanonicalizedMap implements Map { @override bool containsValue(Object? value) => - _base.values.any((pair) => pair.last == value); + _base.values.any((pair) => pair.value == value); @override Iterable> get entries => - _base.entries.map((e) => MapEntry(e.value.first, e.value.last)); + _base.entries.map((e) => MapEntry(e.value.key, e.value.value)); @override void forEach(void Function(K, V) f) { - _base.forEach((key, pair) => f(pair.first, pair.last)); + _base.forEach((key, pair) => f(pair.key, pair.value)); } @override @@ -104,83 +102,63 @@ class CanonicalizedMap implements Map { bool get isNotEmpty => _base.isNotEmpty; @override - Iterable get keys => _base.values.map((pair) => pair.first); + Iterable get keys => _base.values.map((pair) => pair.key); @override int get length => _base.length; @override Map map(MapEntry Function(K, V) transform) => - _base.map((_, pair) => transform(pair.first, pair.last)); + _base.map((_, pair) => transform(pair.key, pair.value)); @override V putIfAbsent(K key, V Function() ifAbsent) { return _base - .putIfAbsent(_canonicalize(key), () => Pair(key, ifAbsent())) - .last; + .putIfAbsent(_canonicalize(key), () => MapEntry(key, ifAbsent())) + .value; } @override V? remove(Object? key) { if (!_isValidKey(key)) return null; var pair = _base.remove(_canonicalize(key as K)); - return pair == null ? null : pair.last; + return pair?.value; } @override void removeWhere(bool Function(K key, V value) test) => - _base.removeWhere((_, pair) => test(pair.first, pair.last)); + _base.removeWhere((_, pair) => test(pair.key, pair.value)); @deprecated Map retype() => cast(); @override - V update(K key, V Function(V) update, {V Function()? ifAbsent}) => _base - .update(_canonicalize(key), (pair) => Pair(key, update(pair.last)), - ifAbsent: ifAbsent == null ? null : () => Pair(key, ifAbsent())) - .last; - - @override - void updateAll(V Function(K key, V value) update) => _base - .updateAll((_, pair) => Pair(pair.first, update(pair.first, pair.last))); + V update(K key, V Function(V) update, {V Function()? ifAbsent}) => + _base.update(_canonicalize(key), (pair) { + var value = pair.value; + var newValue = update(value); + if (identical(newValue, value)) return pair; + return MapEntry(key, newValue); + }, + ifAbsent: + ifAbsent == null ? null : () => MapEntry(key, ifAbsent())).value; + + @override + void updateAll(V Function(K key, V value) update) => + _base.updateAll((_, pair) { + var value = pair.value; + var key = pair.key; + var newValue = update(key, value); + if (identical(value, newValue)) return pair; + return MapEntry(key, newValue); + }); @override - Iterable get values => _base.values.map((pair) => pair.last); + Iterable get values => _base.values.map((pair) => pair.value); @override - String toString() { - // Detect toString() cycles. - if (_isToStringVisiting(this)) { - return '{...}'; - } - - var result = StringBuffer(); - try { - _toStringVisiting.add(this); - result.write('{'); - var first = true; - forEach((k, v) { - if (!first) { - result.write(', '); - } - first = false; - result.write('$k: $v'); - }); - result.write('}'); - } finally { - assert(identical(_toStringVisiting.last, this)); - _toStringVisiting.removeLast(); - } - - return result.toString(); - } + String toString() => MapBase.mapToString(this); bool _isValidKey(Object? key) => (key is K) && (_isValidKeyFn == null || _isValidKeyFn!(key)); } - -/// A collection used to identify cyclic maps during toString() calls. -final List _toStringVisiting = []; - -/// Check if we are currently visiting `o` in a toString() call. -bool _isToStringVisiting(o) => _toStringVisiting.any((e) => identical(o, e)); diff --git a/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart b/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart index 8c5f091d..97d843f2 100644 --- a/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart +++ b/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart @@ -4,6 +4,8 @@ import 'dart:collection'; +import 'combined_iterator.dart'; + /// A view of several iterables combined sequentially into a single iterable. /// /// All methods and accessors treat the [CombinedIterableView] as if it were a @@ -20,7 +22,7 @@ class CombinedIterableView extends IterableBase { @override Iterator get iterator => - _CombinedIterator(_iterables.map((i) => i.iterator).iterator); + CombinedIterator(_iterables.map((i) => i.iterator).iterator); // Special cased contains/isEmpty/length since many iterables have an // efficient implementation instead of running through the entire iterator. @@ -34,41 +36,3 @@ class CombinedIterableView extends IterableBase { @override int get length => _iterables.fold(0, (length, i) => length + i.length); } - -/// The iterator for [CombinedIterableView]. -/// -/// This moves through each iterable's iterators in sequence. -class _CombinedIterator implements Iterator { - /// The iterators that this combines. - /// - /// Because this comes from a call to [Iterable.map], it's lazy and will - /// avoid instantiating unnecessary iterators. - final Iterator> _iterators; - - /// The current iterator in [_iterators], or `null` if done iterating. - Iterator? _currentItr; - - _CombinedIterator(this._iterators) { - _advance(); - } - - @override - T get current => _iterators.current.current; - - @override - bool moveNext() { - if (_currentItr == null) return false; - if (_currentItr!.moveNext()) { - return true; - } else { - _advance(); - } - return moveNext(); - } - - /// Advances [_currentItr] or sets it to `null` if there are no more entries - /// in [_iterators]. - void _advance() { - _currentItr = _iterators.moveNext() ? _iterators.current : null; - } -} diff --git a/pkgs/collection/lib/src/combined_wrappers/combined_iterator.dart b/pkgs/collection/lib/src/combined_wrappers/combined_iterator.dart new file mode 100644 index 00000000..0d6088a9 --- /dev/null +++ b/pkgs/collection/lib/src/combined_wrappers/combined_iterator.dart @@ -0,0 +1,39 @@ +// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +/// The iterator for `CombinedIterableView` and `CombinedListView`. +/// +/// Moves through each iterable's iterator in sequence. +class CombinedIterator implements Iterator { + /// The iterators that this combines, or `null` if done iterating. + /// + /// Because this comes from a call to [Iterable.map], it's lazy and will + /// avoid instantiating unnecessary iterators. + Iterator>? _iterators; + + CombinedIterator(Iterator> iterators) : _iterators = iterators { + if (!iterators.moveNext()) _iterators = null; + } + + @override + T get current { + var iterators = _iterators; + if (iterators != null) return iterators.current.current; + return null as T; + } + + @override + bool moveNext() { + var iterators = _iterators; + if (iterators != null) { + do { + if (iterators.current.moveNext()) { + return true; + } + } while (iterators.moveNext()); + _iterators = null; + } + return false; + } +} diff --git a/pkgs/collection/lib/src/combined_wrappers/combined_list.dart b/pkgs/collection/lib/src/combined_wrappers/combined_list.dart index e341be49..c9a2eb8a 100644 --- a/pkgs/collection/lib/src/combined_wrappers/combined_list.dart +++ b/pkgs/collection/lib/src/combined_wrappers/combined_list.dart @@ -4,6 +4,8 @@ import 'dart:collection'; +import 'combined_iterator.dart'; + /// A view of several lists combined into a single list. /// /// All methods and accessors treat the [CombinedListView] list as if it were a @@ -25,6 +27,10 @@ class CombinedListView extends ListBase /// Creates a combined view of [lists]. CombinedListView(this._lists); + @override + Iterator get iterator => + CombinedIterator(_lists.map((i) => i.iterator).iterator); + @override set length(int length) { _throw(); diff --git a/pkgs/collection/lib/src/empty_unmodifiable_set.dart b/pkgs/collection/lib/src/empty_unmodifiable_set.dart index 6d7f03c8..44bd5ef7 100644 --- a/pkgs/collection/lib/src/empty_unmodifiable_set.dart +++ b/pkgs/collection/lib/src/empty_unmodifiable_set.dart @@ -4,24 +4,20 @@ import 'dart:collection'; +import 'package:collection/collection.dart'; + import 'unmodifiable_wrappers.dart'; -// Unfortunately, we can't use UnmodifiableSetMixin here, since const classes -// can't use mixins. -/// An unmodifiable, empty set that can have a const constructor. +/// An unmodifiable, empty set which can be constant. class EmptyUnmodifiableSet extends IterableBase + with UnmodifiableSetMixin implements UnmodifiableSetView { - static T _throw() { - throw UnsupportedError('Cannot modify an unmodifiable Set'); - } + const EmptyUnmodifiableSet(); @override Iterator get iterator => Iterable.empty().iterator; @override int get length => 0; - - const EmptyUnmodifiableSet(); - @override EmptyUnmodifiableSet cast() => EmptyUnmodifiableSet(); @override @@ -29,7 +25,7 @@ class EmptyUnmodifiableSet extends IterableBase @override bool containsAll(Iterable other) => other.isEmpty; @override - Iterable followedBy(Iterable other) => Set.from(other); + Iterable followedBy(Iterable other) => DelegatingIterable(other); @override E? lookup(Object? element) => null; @deprecated @@ -37,32 +33,15 @@ class EmptyUnmodifiableSet extends IterableBase EmptyUnmodifiableSet retype() => EmptyUnmodifiableSet(); @override E singleWhere(bool Function(E) test, {E Function()? orElse}) => - super.singleWhere(test); + orElse != null ? orElse() : throw StateError('No element'); @override - Iterable whereType() => EmptyUnmodifiableSet(); + Iterable whereType() => Iterable.empty(); @override Set toSet() => {}; @override - Set union(Set other) => Set.from(other); + Set union(Set other) => Set.of(other); @override Set intersection(Set other) => {}; @override Set difference(Set other) => {}; - - @override - bool add(E value) => _throw(); - @override - void addAll(Iterable elements) => _throw(); - @override - void clear() => _throw(); - @override - bool remove(Object? element) => _throw(); - @override - void removeAll(Iterable elements) => _throw(); - @override - void removeWhere(bool Function(E) test) => _throw(); - @override - void retainWhere(bool Function(E) test) => _throw(); - @override - void retainAll(Iterable elements) => _throw(); } diff --git a/pkgs/collection/lib/src/functions.dart b/pkgs/collection/lib/src/functions.dart index 8f401d4c..07c8d4bb 100644 --- a/pkgs/collection/lib/src/functions.dart +++ b/pkgs/collection/lib/src/functions.dart @@ -31,7 +31,7 @@ Map mapMap(Map map, /// values. If [value] is omitted, the value from [map2] is used. Map mergeMaps(Map map1, Map map2, {V Function(V, V)? value}) { - var result = Map.from(map1); + var result = Map.of(map1); if (value == null) return result..addAll(map2); map2.forEach((key, mapValue) { diff --git a/pkgs/collection/lib/src/iterable_zip.dart b/pkgs/collection/lib/src/iterable_zip.dart index 940b5e75..9671eaf3 100644 --- a/pkgs/collection/lib/src/iterable_zip.dart +++ b/pkgs/collection/lib/src/iterable_zip.dart @@ -23,7 +23,6 @@ class IterableZip extends IterableBase> { @override Iterator> get iterator { var iterators = _iterables.map((x) => x.iterator).toList(growable: false); - // TODO(lrn): Return an empty iterator directly if iterators is empty? return _IteratorZip(iterators); } } @@ -49,5 +48,5 @@ class _IteratorZip implements Iterator> { } @override - List get current => _current!; + List get current => _current ?? (throw StateError('No element')); } diff --git a/pkgs/collection/lib/src/queue_list.dart b/pkgs/collection/lib/src/queue_list.dart index 14b696ef..3bf13f2b 100644 --- a/pkgs/collection/lib/src/queue_list.dart +++ b/pkgs/collection/lib/src/queue_list.dart @@ -25,26 +25,25 @@ class QueueList extends Object with ListMixin implements Queue { return _CastQueueList(source); } - static const int _INITIAL_CAPACITY = 8; - late List _table; + /// Default and minimal initial capacity of the queue-list. + static const int _initialCapacity = 8; + List _table; int _head; int _tail; - /// Create an empty queue. + /// Creates an empty queue. /// /// If [initialCapacity] is given, prepare the queue for at least that many /// elements. QueueList([int? initialCapacity]) - : _head = 0, - _tail = 0 { - if (initialCapacity == null || initialCapacity < _INITIAL_CAPACITY) { - initialCapacity = _INITIAL_CAPACITY; - } else if (!_isPowerOf2(initialCapacity)) { - initialCapacity = _nextPowerOf2(initialCapacity); - } - assert(_isPowerOf2(initialCapacity)); - _table = List.filled(initialCapacity, null); - } + : this._init(_computeInitialCapacity(initialCapacity)); + + /// Creates an empty queue with the specific initial capacity. + QueueList._init(int initialCapacity) + : assert(_isPowerOf2(initialCapacity)), + _table = List.filled(initialCapacity, null), + _head = 0, + _tail = 0; /// An internal constructor for use by [_CastQueueList]. QueueList._(this._head, this._tail, this._table); @@ -64,6 +63,18 @@ class QueueList extends Object with ListMixin implements Queue { } } + /// Computes the actual initial capacity based on the constructor parameter. + static int _computeInitialCapacity(int? initialCapacity) { + if (initialCapacity == null || initialCapacity < _initialCapacity) { + return _initialCapacity; + } + initialCapacity += 1; + if (_isPowerOf2(initialCapacity)) { + return initialCapacity; + } + return _nextPowerOf2(initialCapacity); + } + // Collection interface. @override @@ -137,7 +148,7 @@ class QueueList extends Object with ListMixin implements Queue { E removeLast() { if (_head == _tail) throw StateError('No element'); _tail = (_tail - 1) & (_table.length - 1); - var result = _table[_tail]!; + var result = _table[_tail] as E; _table[_tail] = null; return result; } diff --git a/pkgs/collection/lib/src/union_set.dart b/pkgs/collection/lib/src/union_set.dart index 2fe6e3e6..37aee483 100644 --- a/pkgs/collection/lib/src/union_set.dart +++ b/pkgs/collection/lib/src/union_set.dart @@ -29,7 +29,9 @@ class UnionSet extends SetBase with UnmodifiableSetMixin { /// is, that they contain no elements in common. This makes many operations /// including [length] more efficient. If the component sets turn out not to /// be disjoint, some operations may behave inconsistently. - UnionSet(this._sets, {bool disjoint = false}) : _disjoint = disjoint; + UnionSet(Set> sets, {bool disjoint = false}) + : _sets = sets, + _disjoint = disjoint; /// Creates a new set that's a view of the union of all sets in [sets]. /// @@ -66,20 +68,13 @@ class UnionSet extends SetBase with UnmodifiableSetMixin { @override E? lookup(Object? element) { - if (element == null) return null; for (var set in _sets) { var result = set.lookup(element); - if (result != null) return result; + if (result != null || set.contains(null)) return result; } return null; } @override - Set toSet() { - var result = {}; - for (var set in _sets) { - result.addAll(set); - } - return result; - } + Set toSet() => {for (var set in _sets) ...set}; } diff --git a/pkgs/collection/lib/src/union_set_controller.dart b/pkgs/collection/lib/src/union_set_controller.dart index 245081d3..ea3622a9 100644 --- a/pkgs/collection/lib/src/union_set_controller.dart +++ b/pkgs/collection/lib/src/union_set_controller.dart @@ -23,20 +23,21 @@ import 'union_set.dart'; /// ``` class UnionSetController { /// The [UnionSet] that provides a view of the union of sets in [this]. - UnionSet get set => _set; - late final UnionSet _set; + final UnionSet set; /// The sets whose union is exposed through [set]. - final _sets = >{}; + final Set> _sets; /// Creates a set of sets that provides a view of the union of those sets. /// /// If [disjoint] is `true`, this assumes that all component sets are /// disjoint—that is, that they contain no elements in common. This makes /// many operations including [length] more efficient. - UnionSetController({bool disjoint = false}) { - _set = UnionSet(_sets, disjoint: disjoint); - } + UnionSetController({bool disjoint = false}) : this._(>{}, disjoint); + + /// Creates a controller with the provided [_sets]. + UnionSetController._(this._sets, bool disjoint) + : set = UnionSet(_sets, disjoint: disjoint); /// Adds the contents of [component] to [set]. /// diff --git a/pkgs/collection/lib/src/unmodifiable_wrappers.dart b/pkgs/collection/lib/src/unmodifiable_wrappers.dart index 96551e85..c6cf2cd7 100644 --- a/pkgs/collection/lib/src/unmodifiable_wrappers.dart +++ b/pkgs/collection/lib/src/unmodifiable_wrappers.dart @@ -26,7 +26,7 @@ class NonGrowableListView extends DelegatingList /// Mixin class that implements a throwing version of all list operations that /// change the List's length. abstract class NonGrowableListMixin implements List { - static T _throw() { + static Never _throw() { throw UnsupportedError('Cannot change the length of a fixed-length list'); } @@ -98,9 +98,9 @@ abstract class NonGrowableListMixin implements List { /// An unmodifiable set. /// -/// An UnmodifiableSetView contains a [Set] object and ensures -/// that it does not change. -/// Methods that would change the set, +/// An [UnmodifiableSetView] contains a [Set], +/// and prevents that set from being changed through the view. +/// Methods that could change the set, /// such as [add] and [remove], throw an [UnsupportedError]. /// Permitted operations defer to the wrapped set. class UnmodifiableSetView extends DelegatingSet @@ -117,7 +117,7 @@ class UnmodifiableSetView extends DelegatingSet /// Mixin class that implements a throwing version of all set operations that /// change the Set. abstract class UnmodifiableSetMixin implements Set { - static T _throw() { + static Never _throw() { throw UnsupportedError('Cannot modify an unmodifiable Set'); } @@ -165,7 +165,7 @@ abstract class UnmodifiableSetMixin implements Set { /// Mixin class that implements a throwing version of all map operations that /// change the Map. abstract class UnmodifiableMapMixin implements Map { - static T _throw() { + static Never _throw() { throw UnsupportedError('Cannot modify an unmodifiable Map'); } diff --git a/pkgs/collection/lib/src/utils.dart b/pkgs/collection/lib/src/utils.dart index 194f99c4..00ea9320 100644 --- a/pkgs/collection/lib/src/utils.dart +++ b/pkgs/collection/lib/src/utils.dart @@ -2,14 +2,6 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -/// A pair of values. -class Pair { - E first; - F last; - - Pair(this.first, this.last); -} - /// Returns a [Comparator] that asserts that its first argument is comparable. Comparator defaultCompare() => (value1, value2) => (value1 as Comparable).compareTo(value2); diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index 14e2d8c3..b5b61e37 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -148,8 +148,11 @@ class DelegatingIterable extends _DelegatingIterableBase { /// This class can be used to hide non-`List` methods of a list object, or it /// can be extended to add extra functionality on top of an existing list /// object. -class DelegatingList extends DelegatingIterable implements List { - const DelegatingList(List base) : super(base); +class DelegatingList extends _DelegatingIterableBase implements List { + @override + final List _base; + + const DelegatingList(List base) : _base = base; /// Creates a wrapper that asserts the types of values in [base]. /// @@ -165,43 +168,41 @@ class DelegatingList extends DelegatingIterable implements List { @Deprecated('Use list.cast instead.') static List typed(List base) => base.cast(); - List get _listBase => _base as List; - @override - E operator [](int index) => _listBase[index]; + E operator [](int index) => _base[index]; @override void operator []=(int index, E value) { - _listBase[index] = value; + _base[index] = value; } @override - List operator +(List other) => _listBase + other; + List operator +(List other) => _base + other; @override void add(E value) { - _listBase.add(value); + _base.add(value); } @override void addAll(Iterable iterable) { - _listBase.addAll(iterable); + _base.addAll(iterable); } @override - Map asMap() => _listBase.asMap(); + Map asMap() => _base.asMap(); @override - List cast() => _listBase.cast(); + List cast() => _base.cast(); @override void clear() { - _listBase.clear(); + _base.clear(); } @override void fillRange(int start, int end, [E? fillValue]) { - _listBase.fillRange(start, end, fillValue); + _base.fillRange(start, end, fillValue); } @override @@ -211,23 +212,23 @@ class DelegatingList extends DelegatingIterable implements List { } @override - Iterable getRange(int start, int end) => _listBase.getRange(start, end); + Iterable getRange(int start, int end) => _base.getRange(start, end); @override - int indexOf(E element, [int start = 0]) => _listBase.indexOf(element, start); + int indexOf(E element, [int start = 0]) => _base.indexOf(element, start); @override int indexWhere(bool Function(E) test, [int start = 0]) => - _listBase.indexWhere(test, start); + _base.indexWhere(test, start); @override void insert(int index, E element) { - _listBase.insert(index, element); + _base.insert(index, element); } @override void insertAll(int index, Iterable iterable) { - _listBase.insertAll(index, iterable); + _base.insertAll(index, iterable); } @override @@ -237,45 +238,44 @@ class DelegatingList extends DelegatingIterable implements List { } @override - int lastIndexOf(E element, [int? start]) => - _listBase.lastIndexOf(element, start); + int lastIndexOf(E element, [int? start]) => _base.lastIndexOf(element, start); @override int lastIndexWhere(bool Function(E) test, [int? start]) => - _listBase.lastIndexWhere(test, start); + _base.lastIndexWhere(test, start); @override set length(int newLength) { - _listBase.length = newLength; + _base.length = newLength; } @override - bool remove(Object? value) => _listBase.remove(value); + bool remove(Object? value) => _base.remove(value); @override - E removeAt(int index) => _listBase.removeAt(index); + E removeAt(int index) => _base.removeAt(index); @override - E removeLast() => _listBase.removeLast(); + E removeLast() => _base.removeLast(); @override void removeRange(int start, int end) { - _listBase.removeRange(start, end); + _base.removeRange(start, end); } @override void removeWhere(bool Function(E) test) { - _listBase.removeWhere(test); + _base.removeWhere(test); } @override void replaceRange(int start, int end, Iterable iterable) { - _listBase.replaceRange(start, end, iterable); + _base.replaceRange(start, end, iterable); } @override void retainWhere(bool Function(E) test) { - _listBase.retainWhere(test); + _base.retainWhere(test); } @deprecated @@ -283,38 +283,41 @@ class DelegatingList extends DelegatingIterable implements List { List retype() => cast(); @override - Iterable get reversed => _listBase.reversed; + Iterable get reversed => _base.reversed; @override void setAll(int index, Iterable iterable) { - _listBase.setAll(index, iterable); + _base.setAll(index, iterable); } @override void setRange(int start, int end, Iterable iterable, [int skipCount = 0]) { - _listBase.setRange(start, end, iterable, skipCount); + _base.setRange(start, end, iterable, skipCount); } @override void shuffle([math.Random? random]) { - _listBase.shuffle(random); + _base.shuffle(random); } @override void sort([int Function(E, E)? compare]) { - _listBase.sort(compare); + _base.sort(compare); } @override - List sublist(int start, [int? end]) => _listBase.sublist(start, end); + List sublist(int start, [int? end]) => _base.sublist(start, end); } /// A [Set] that delegates all operations to a base set. /// /// This class can be used to hide non-`Set` methods of a set object, or it can /// be extended to add extra functionality on top of an existing set object. -class DelegatingSet extends DelegatingIterable implements Set { - const DelegatingSet(Set base) : super(base); +class DelegatingSet extends _DelegatingIterableBase implements Set { + @override + final Set _base; + + const DelegatingSet(Set base) : _base = base; /// Creates a wrapper that asserts the types of values in [base]. /// @@ -330,52 +333,50 @@ class DelegatingSet extends DelegatingIterable implements Set { @Deprecated('Use set.cast instead.') static Set typed(Set base) => base.cast(); - Set get _setBase => _base as Set; - @override - bool add(E value) => _setBase.add(value); + bool add(E value) => _base.add(value); @override void addAll(Iterable elements) { - _setBase.addAll(elements); + _base.addAll(elements); } @override - Set cast() => _setBase.cast(); + Set cast() => _base.cast(); @override void clear() { - _setBase.clear(); + _base.clear(); } @override - bool containsAll(Iterable other) => _setBase.containsAll(other); + bool containsAll(Iterable other) => _base.containsAll(other); @override - Set difference(Set other) => _setBase.difference(other); + Set difference(Set other) => _base.difference(other); @override - Set intersection(Set other) => _setBase.intersection(other); + Set intersection(Set other) => _base.intersection(other); @override - E? lookup(Object? element) => _setBase.lookup(element); + E? lookup(Object? element) => _base.lookup(element); @override - bool remove(Object? value) => _setBase.remove(value); + bool remove(Object? value) => _base.remove(value); @override void removeAll(Iterable elements) { - _setBase.removeAll(elements); + _base.removeAll(elements); } @override void removeWhere(bool Function(E) test) { - _setBase.removeWhere(test); + _base.removeWhere(test); } @override void retainAll(Iterable elements) { - _setBase.retainAll(elements); + _base.retainAll(elements); } @deprecated @@ -384,14 +385,14 @@ class DelegatingSet extends DelegatingIterable implements Set { @override void retainWhere(bool Function(E) test) { - _setBase.retainWhere(test); + _base.retainWhere(test); } @override - Set union(Set other) => _setBase.union(other); + Set union(Set other) => _base.union(other); @override - Set toSet() => DelegatingSet(_setBase.toSet()); + Set toSet() => DelegatingSet(_base.toSet()); } /// A [Queue] that delegates all operations to a base queue. @@ -399,8 +400,12 @@ class DelegatingSet extends DelegatingIterable implements Set { /// This class can be used to hide non-`Queue` methods of a queue object, or it /// can be extended to add extra functionality on top of an existing queue /// object. -class DelegatingQueue extends DelegatingIterable implements Queue { - const DelegatingQueue(Queue queue) : super(queue); +class DelegatingQueue extends _DelegatingIterableBase + implements Queue { + @override + final Queue _base; + + const DelegatingQueue(Queue queue) : _base = queue; /// Creates a wrapper that asserts the types of values in [base]. /// @@ -416,47 +421,45 @@ class DelegatingQueue extends DelegatingIterable implements Queue { @Deprecated('Use queue.cast instead.') static Queue typed(Queue base) => base.cast(); - Queue get _baseQueue => _base as Queue; - @override void add(E value) { - _baseQueue.add(value); + _base.add(value); } @override void addAll(Iterable iterable) { - _baseQueue.addAll(iterable); + _base.addAll(iterable); } @override void addFirst(E value) { - _baseQueue.addFirst(value); + _base.addFirst(value); } @override void addLast(E value) { - _baseQueue.addLast(value); + _base.addLast(value); } @override - Queue cast() => _baseQueue.cast(); + Queue cast() => _base.cast(); @override void clear() { - _baseQueue.clear(); + _base.clear(); } @override - bool remove(Object? object) => _baseQueue.remove(object); + bool remove(Object? object) => _base.remove(object); @override void removeWhere(bool Function(E) test) { - _baseQueue.removeWhere(test); + _base.removeWhere(test); } @override void retainWhere(bool Function(E) test) { - _baseQueue.retainWhere(test); + _base.retainWhere(test); } @deprecated @@ -464,10 +467,10 @@ class DelegatingQueue extends DelegatingIterable implements Queue { Queue retype() => cast(); @override - E removeFirst() => _baseQueue.removeFirst(); + E removeFirst() => _base.removeFirst(); @override - E removeLast() => _baseQueue.removeLast(); + E removeLast() => _base.removeLast(); } /// A [Map] that delegates all operations to a base map. @@ -616,7 +619,7 @@ class MapKeySet extends _DelegatingIterableBase int get length => _baseMap.length; @override - String toString() => "{${_base.join(', ')}}"; + String toString() => SetBase.setToString(this); @override bool containsAll(Iterable other) => other.every(contains); @@ -805,7 +808,7 @@ class MapValueSet extends _DelegatingIterableBase implements Set { var key = _keyForValue(element); if (!_baseMap.containsKey(key)) continue; - valuesToRetain.add(_baseMap[key]!); + valuesToRetain.add(_baseMap[key] ?? null as V); } var keysToRemove = []; From 87012d4d11363a14d7049cdc7ec2b8d56231535b Mon Sep 17 00:00:00 2001 From: "Lasse R.H. Nielsen" Date: Wed, 30 Sep 2020 13:23:31 +0200 Subject: [PATCH 140/235] Add extension methods to package:collection. (dart-lang/collection#135) Add a number of useful extension methods to `List` and `Iterable`, and to a few other types. A good part of these extensions are backed by the algorithms of `algorithms.dart`, which is expanded to support them: * Added `quickSort`. * Add extra optional `Random` argument to `shuffle`. * Generalize some of the functions in algorithms.dart to work on specific properties of the objects (`binarySearchBy`, `lowerBoundBy`, `insertionSortBy`, `quickSortBy`, `mergeSortBy`). The new methods are not exported from the library yet, they are intended to be used through the extension. --- pkgs/collection/.travis.yml | 2 +- pkgs/collection/CHANGELOG.md | 8 + pkgs/collection/analysis_options.yaml | 20 +- pkgs/collection/lib/algorithms.dart | 3 +- pkgs/collection/lib/collection.dart | 5 +- pkgs/collection/lib/src/algorithms.dart | 321 +++- pkgs/collection/lib/src/functions.dart | 4 +- .../lib/src/iterable_extensions.dart | 762 ++++++++ pkgs/collection/lib/src/list_extensions.dart | 482 +++++ pkgs/collection/lib/src/priority_queue.dart | 2 +- pkgs/collection/lib/src/utils.dart | 19 +- pkgs/collection/pubspec.yaml | 2 +- pkgs/collection/test/algorithms_test.dart | 249 ++- pkgs/collection/test/extensions_test.dart | 1659 +++++++++++++++++ 14 files changed, 3353 insertions(+), 185 deletions(-) create mode 100644 pkgs/collection/lib/src/iterable_extensions.dart create mode 100644 pkgs/collection/lib/src/list_extensions.dart create mode 100644 pkgs/collection/test/extensions_test.dart diff --git a/pkgs/collection/.travis.yml b/pkgs/collection/.travis.yml index 82091ab2..4e550df4 100644 --- a/pkgs/collection/.travis.yml +++ b/pkgs/collection/.travis.yml @@ -20,7 +20,7 @@ jobs: - stage: test name: "Vm Tests" os: linux - script: pub run --enable-experiment=non-nullable test -p vm + script: pub run --enable-experiment=non-nullable test -p vm - stage: test name: "Web Tests" os: linux diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 1695647e..e99669f3 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -3,6 +3,14 @@ * Remove the unusable setter `UnionSetController.set=`. This was mistakenly added to the public API but could never be called. +* Add extra optional `Random` argument to `shuffle`. + +* Add a large number of extension methods on `Iterable` and `List` types, + and on a few other types. + These either provide easy access to the operations from `algorithms.dart`, + or provide convenience variants of existing `Iterable` and `List` methods + like `singleWhereOrNull` or `forEachIndexed`. + ## 1.15.0-nullsafety.3 * Allow 2.10 stable and 2.11.0 dev SDK versions. diff --git a/pkgs/collection/analysis_options.yaml b/pkgs/collection/analysis_options.yaml index 5adddb12..d813ed96 100644 --- a/pkgs/collection/analysis_options.yaml +++ b/pkgs/collection/analysis_options.yaml @@ -1,4 +1,4 @@ -include: package:pedantic/analysis_options.yaml +include: package:pedantic/analysis_options.1.9.0.yaml analyzer: errors: unused_element: error @@ -7,39 +7,21 @@ analyzer: dead_code: error enable-experiment: - non-nullable - linter: rules: # Errors - - avoid_empty_else - control_flow_in_finally - empty_statements - hash_and_equals - implementation_imports - test_types_in_equals - throw_in_finally - - unrelated_type_equality_checks - - valid_regexps # Style - - avoid_init_to_null - avoid_private_typedef_functions - avoid_renaming_method_parameters - - avoid_return_types_on_setters - await_only_futures - camel_case_types - directives_ordering - - empty_catches - - empty_constructor_bodies - - library_names - - library_prefixes - non_constant_identifier_names - only_throw_errors - - prefer_equal_for_default_values - - prefer_final_fields - - prefer_generic_function_type_aliases - - prefer_is_not_empty - - slash_for_doc_comments - - type_init_formals - - unnecessary_const - - unnecessary_new diff --git a/pkgs/collection/lib/algorithms.dart b/pkgs/collection/lib/algorithms.dart index df0d712f..7054141e 100644 --- a/pkgs/collection/lib/algorithms.dart +++ b/pkgs/collection/lib/algorithms.dart @@ -6,4 +6,5 @@ @Deprecated('Will be removed in collection 2.0.0.') library dart.pkg.collection.algorithms; -export 'src/algorithms.dart'; +export 'src/algorithms.dart' + show binarySearch, insertionSort, lowerBound, mergeSort, shuffle, reverse; diff --git a/pkgs/collection/lib/collection.dart b/pkgs/collection/lib/collection.dart index 282d60fc..27a75c87 100644 --- a/pkgs/collection/lib/collection.dart +++ b/pkgs/collection/lib/collection.dart @@ -2,7 +2,8 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -export 'src/algorithms.dart'; +export 'src/algorithms.dart' + show binarySearch, insertionSort, lowerBound, mergeSort, shuffle, reverse; export 'src/canonicalized_map.dart'; export 'src/combined_wrappers/combined_iterable.dart'; export 'src/combined_wrappers/combined_list.dart'; @@ -12,7 +13,9 @@ export 'src/equality.dart'; export 'src/equality_map.dart'; export 'src/equality_set.dart'; export 'src/functions.dart'; +export 'src/iterable_extensions.dart'; export 'src/iterable_zip.dart'; +export 'src/list_extensions.dart'; export 'src/priority_queue.dart'; export 'src/queue_list.dart'; export 'src/union_set.dart'; diff --git a/pkgs/collection/lib/src/algorithms.dart b/pkgs/collection/lib/src/algorithms.dart index 44a2b3b5..d589e1ec 100644 --- a/pkgs/collection/lib/src/algorithms.dart +++ b/pkgs/collection/lib/src/algorithms.dart @@ -2,7 +2,10 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import 'dart:math' as math; +/// A selection of data manipulation algorithms. +library pkg.collection.algorithms; + +import 'dart:math' show Random; import 'utils.dart'; @@ -12,19 +15,35 @@ import 'utils.dart'; /// is unpredictable. /// /// If [compare] is omitted, this defaults to calling [Comparable.compareTo] on -/// the objects. If any object is not [Comparable], this throws a [TypeError] -/// (`CastError` on some SDK versions). +/// the objects. In this case, the objects must be [Comparable]. +/// +/// Returns -1 if [value] is not in the list. +int binarySearch(List sortedList, E value, + {int Function(E, E)? compare}) { + compare ??= defaultCompare; + return binarySearchBy(sortedList, identity, compare, value); +} + +/// Returns a position of the [value] in [sortedList], if it is there. +/// +/// If the list isn't sorted according to the [compare] function on the [keyOf] +/// property of the elements, the result is unpredictable. /// /// Returns -1 if [value] is not in the list by default. -int binarySearch(List sortedList, T value, - {int Function(T, T)? compare}) { - compare ??= defaultCompare(); - var min = 0; - var max = sortedList.length; +/// +/// If [start] and [end] are supplied, only that range is searched, +/// and only that range need to be sorted. +int binarySearchBy(List sortedList, K Function(E element) keyOf, + int Function(K, K) compare, E value, + [int start = 0, int? end]) { + end = RangeError.checkValidRange(start, end, sortedList.length); + var min = start; + var max = end; + var key = keyOf(value); while (min < max) { var mid = min + ((max - min) >> 1); var element = sortedList[mid]; - var comp = compare(element, value); + var comp = compare(keyOf(element), key); if (comp == 0) return mid; if (comp < 0) { min = mid + 1; @@ -42,19 +61,36 @@ int binarySearch(List sortedList, T value, /// is unpredictable. /// /// If [compare] is omitted, this defaults to calling [Comparable.compareTo] on -/// the objects. If any object is not [Comparable], this throws a [TypeError] -/// (`CastError` on some SDK versions). +/// the objects. In this case, the objects must be [Comparable]. /// /// Returns [sortedList.length] if all the items in [sortedList] compare less /// than [value]. -int lowerBound(List sortedList, T value, {int Function(T, T)? compare}) { - compare ??= defaultCompare(); - var min = 0; - var max = sortedList.length; +int lowerBound(List sortedList, E value, {int Function(E, E)? compare}) { + compare ??= defaultCompare; + return lowerBoundBy(sortedList, identity, compare, value); +} + +/// Returns the first position in [sortedList] that is not before [value]. +/// +/// Elements are compared using the [compare] function of the [keyOf] property of +/// the elements. +/// If the list isn't sorted according to this order, the result is unpredictable. +/// +/// Returns [sortedList.length] if all the items in [sortedList] are before [value]. +/// +/// If [start] and [end] are supplied, only that range is searched, +/// and only that range need to be sorted. +int lowerBoundBy(List sortedList, K Function(E element) keyOf, + int Function(K, K) compare, E value, + [int start = 0, int? end]) { + end = RangeError.checkValidRange(start, end, sortedList.length); + var min = start; + var max = end; + var key = keyOf(value); while (min < max) { var mid = min + ((max - min) >> 1); var element = sortedList[mid]; - var comp = compare(element, value); + var comp = compare(keyOf(element), key); if (comp < 0) { min = mid + 1; } else { @@ -67,31 +103,36 @@ int lowerBound(List sortedList, T value, {int Function(T, T)? compare}) { /// Shuffles a list randomly. /// /// A sub-range of a list can be shuffled by providing [start] and [end]. -void shuffle(List list, [int start = 0, int? end]) { - var random = math.Random(); - end ??= list.length; +/// +/// If [start] or [end] are omitted, +/// they default to the start and end of the list. +/// +/// If [random] is omitted, it defaults to a new instance of [Random]. +void shuffle(List elements, [int start = 0, int? end, Random? random]) { + random ??= Random(); + end ??= elements.length; var length = end - start; while (length > 1) { var pos = random.nextInt(length); length--; - var tmp1 = list[start + pos]; - list[start + pos] = list[start + length]; - list[start + length] = tmp1; + var tmp1 = elements[start + pos]; + elements[start + pos] = elements[start + length]; + elements[start + length] = tmp1; } } /// Reverses a list, or a part of a list, in-place. -void reverse(List list, [int start = 0, int? end]) { - end ??= list.length; - _reverse(list, start, end); +void reverse(List elements, [int start = 0, int? end]) { + end = RangeError.checkValidRange(start, end, elements.length); + _reverse(elements, start, end); } /// Internal helper function that assumes valid arguments. -void _reverse(List list, int start, int end) { +void _reverse(List elements, int start, int end) { for (var i = start, j = end - 1; i < j; i++, j--) { - var tmp = list[i]; - list[i] = list[j]; - list[j] = tmp; + var tmp = elements[i]; + elements[i] = elements[j]; + elements[j] = tmp; } } @@ -99,8 +140,7 @@ void _reverse(List list, int start, int end) { /// insertion sort. /// /// If [compare] is omitted, this defaults to calling [Comparable.compareTo] on -/// the objects. If any object is not [Comparable], this throws a [TypeError] -/// (`CastError` on some SDK versions). +/// the objects. In this case, the objects must be [Comparable]. /// /// Insertion sort is a simple sorting algorithm. For `n` elements it does on /// the order of `n * log(n)` comparisons but up to `n` squared moves. The @@ -111,40 +151,50 @@ void _reverse(List list, int start, int end) { /// /// This insertion sort is stable: Equal elements end up in the same order /// as they started in. -void insertionSort(List list, - {int Function(T, T)? compare, int start = 0, int? end}) { +void insertionSort(List elements, + {int Function(E, E)? compare, int start = 0, int? end}) { // If the same method could have both positional and named optional // parameters, this should be (list, [start, end], {compare}). - compare ??= defaultCompare(); - end ??= list.length; + compare ??= defaultCompare; + end ??= elements.length; for (var pos = start + 1; pos < end; pos++) { var min = start; var max = pos; - var element = list[pos]; + var element = elements[pos]; while (min < max) { var mid = min + ((max - min) >> 1); - var comparison = compare(element, list[mid]); + var comparison = compare(element, elements[mid]); if (comparison < 0) { max = mid; } else { min = mid + 1; } } - list.setRange(min + 1, pos + 1, list, min); - list[min] = element; + elements.setRange(min + 1, pos + 1, elements, min); + elements[min] = element; } } +/// Generalized insertion sort. +/// +/// Performs insertion sort on the [elements] range from [start] to [end]. +/// Ordering is the [compare] of the [keyOf] of the elements. +void insertionSortBy(List elements, K Function(E element) keyOf, + int Function(K a, K b) compare, + [int start = 0, int? end]) { + end = RangeError.checkValidRange(start, end, elements.length); + _movingInsertionSort(elements, keyOf, compare, start, end, elements, start); +} + /// Limit below which merge sort defaults to insertion sort. -const int _MERGE_SORT_LIMIT = 32; +const int _mergeSortLimit = 32; /// Sorts a list between [start] (inclusive) and [end] (exclusive) using the /// merge sort algorithm. /// /// If [compare] is omitted, this defaults to calling [Comparable.compareTo] on -/// the objects. If any object is not [Comparable], this throws a [TypeError] -/// (`CastError` on some SDK versions). +/// the objects. If any object is not [Comparable], that throws a [TypeError]. /// /// Merge-sorting works by splitting the job into two parts, sorting each /// recursively, and then merging the two sorted parts. @@ -155,15 +205,53 @@ const int _MERGE_SORT_LIMIT = 32; /// /// This merge sort is stable: Equal elements end up in the same order /// as they started in. -void mergeSort(List list, - {int start = 0, int? end, int Function(T, T)? compare}) { - end = RangeError.checkValidRange(start, end, list.length); - compare ??= defaultCompare(); +void mergeSort(List elements, + {int start = 0, int? end, int Function(E, E)? compare}) { + end = RangeError.checkValidRange(start, end, elements.length); + compare ??= defaultCompare; var length = end - start; if (length < 2) return; - if (length < _MERGE_SORT_LIMIT) { - insertionSort(list, compare: compare, start: start, end: end); + if (length < _mergeSortLimit) { + insertionSort(elements, compare: compare, start: start, end: end); + return; + } + // Special case the first split instead of directly calling + // _mergeSort, because the _mergeSort requires its target to + // be different from its source, and it requires extra space + // of the same size as the list to sort. + // This split allows us to have only half as much extra space, + // and allows the sorted elements to end up in the original list. + var firstLength = (end - start) >> 1; + var middle = start + firstLength; + var secondLength = end - middle; + // secondLength is always the same as firstLength, or one greater. + var scratchSpace = List.filled(secondLength, elements[start]); + // TODO(linter/2097): Remove ignore when no longer required by linter. + // See: https://github.com/dart-lang/linter/issues/2097 + E Function(E) id = identity; // ignore: omit_local_variable_types + _mergeSort(elements, id, compare, middle, end, scratchSpace, 0); + var firstTarget = end - firstLength; + _mergeSort(elements, id, compare, start, middle, elements, firstTarget); + _merge(id, compare, elements, firstTarget, end, scratchSpace, 0, secondLength, + elements, start); +} + +/// Sort [elements] using a merge-sort algorithm. +/// +/// The elements are compared using [compare] on the value provided by [keyOf] +/// on the element. +/// If [start] and [end] are provided, only that range is sorted. +/// +/// Uses insertion sort for smaller sublists. +void mergeSortBy(List elements, K Function(E element) keyOf, + int Function(K a, K b) compare, + [int start = 0, int? end]) { + end = RangeError.checkValidRange(start, end, elements.length); + var length = end - start; + if (length < 2) return; + if (length < _mergeSortLimit) { + _movingInsertionSort(elements, keyOf, compare, start, end, elements, start); return; } // Special case the first split instead of directly calling @@ -172,34 +260,41 @@ void mergeSort(List list, // of the same size as the list to sort. // This split allows us to have only half as much extra space, // and it ends up in the original place. - var middle = start + ((end - start) >> 1); + var middle = start + (length >> 1); var firstLength = middle - start; var secondLength = end - middle; // secondLength is always the same as firstLength, or one greater. - var scratchSpace = List.filled(secondLength, list[start]); - _mergeSort(list, compare, middle, end, scratchSpace, 0); + var scratchSpace = List.filled(secondLength, elements[start]); + _mergeSort(elements, keyOf, compare, middle, end, scratchSpace, 0); var firstTarget = end - firstLength; - _mergeSort(list, compare, start, middle, list, firstTarget); - _merge(compare, list, firstTarget, end, scratchSpace, 0, secondLength, list, - start); + _mergeSort(elements, keyOf, compare, start, middle, elements, firstTarget); + _merge(keyOf, compare, elements, firstTarget, end, scratchSpace, 0, + secondLength, elements, start); } /// Performs an insertion sort into a potentially different list than the /// one containing the original values. /// /// It will work in-place as well. -void _movingInsertionSort(List list, int Function(T, T) compare, - int start, int end, List target, int targetOffset) { +void _movingInsertionSort( + List list, + K Function(E element) keyOf, + int Function(K, K) compare, + int start, + int end, + List target, + int targetOffset) { var length = end - start; if (length == 0) return; target[targetOffset] = list[start]; for (var i = 1; i < length; i++) { var element = list[start + i]; + var elementKey = keyOf(element); var min = targetOffset; var max = targetOffset + i; while (min < max) { var mid = min + ((max - min) >> 1); - if (compare(element, target[mid]) < 0) { + if (compare(elementKey, keyOf(target[mid])) < 0) { max = mid; } else { min = mid + 1; @@ -210,18 +305,25 @@ void _movingInsertionSort(List list, int Function(T, T) compare, } } -/// Sorts [list] from [start] to [end] into [target] at [targetOffset]. +/// Sorts [elements] from [start] to [end] into [target] at [targetOffset]. /// /// The `target` list must be able to contain the range from `start` to `end` /// after `targetOffset`. /// -/// Allows target to be the same list as [list], as long as it's not +/// Allows target to be the same list as [elements], as long as it's not /// overlapping the `start..end` range. -void _mergeSort(List list, int Function(T, T) compare, int start, int end, - List target, int targetOffset) { +void _mergeSort( + List elements, + K Function(E element) keyOf, + int Function(K, K) compare, + int start, + int end, + List target, + int targetOffset) { var length = end - start; - if (length < _MERGE_SORT_LIMIT) { - _movingInsertionSort(list, compare, start, end, target, targetOffset); + if (length < _mergeSortLimit) { + _movingInsertionSort( + elements, keyOf, compare, start, end, target, targetOffset); return; } var middle = start + (length >> 1); @@ -230,12 +332,12 @@ void _mergeSort(List list, int Function(T, T) compare, int start, int end, // Here secondLength >= firstLength (differs by at most one). var targetMiddle = targetOffset + firstLength; // Sort the second half into the end of the target area. - _mergeSort(list, compare, middle, end, target, targetMiddle); + _mergeSort(elements, keyOf, compare, middle, end, target, targetMiddle); // Sort the first half into the end of the source area. - _mergeSort(list, compare, start, middle, list, middle); + _mergeSort(elements, keyOf, compare, start, middle, elements, middle); // Merge the two parts into the target area. - _merge(compare, list, middle, middle + firstLength, target, targetMiddle, - targetMiddle + secondLength, target, targetOffset); + _merge(keyOf, compare, elements, middle, middle + firstLength, target, + targetMiddle, targetMiddle + secondLength, target, targetOffset); } /// Merges two lists into a target list. @@ -246,15 +348,16 @@ void _mergeSort(List list, int Function(T, T) compare, int start, int end, /// For equal object, elements from [firstList] are always preferred. /// This allows the merge to be stable if the first list contains elements /// that started out earlier than the ones in [secondList] -void _merge( - int Function(T, T) compare, - List firstList, +void _merge( + K Function(E element) keyOf, + int Function(K, K) compare, + List firstList, int firstStart, int firstEnd, - List secondList, + List secondList, int secondStart, int secondEnd, - List target, + List target, int targetOffset) { // No empty lists reaches here. assert(firstStart < firstEnd); @@ -262,16 +365,20 @@ void _merge( var cursor1 = firstStart; var cursor2 = secondStart; var firstElement = firstList[cursor1++]; + var firstKey = keyOf(firstElement); var secondElement = secondList[cursor2++]; + var secondKey = keyOf(secondElement); while (true) { - if (compare(firstElement, secondElement) <= 0) { + if (compare(firstKey, secondKey) <= 0) { target[targetOffset++] = firstElement; if (cursor1 == firstEnd) break; // Flushing second list after loop. firstElement = firstList[cursor1++]; + firstKey = keyOf(firstElement); } else { target[targetOffset++] = secondElement; if (cursor2 != secondEnd) { secondElement = secondList[cursor2++]; + secondKey = keyOf(secondElement); continue; } // Second list empties first. Flushing first list here. @@ -286,3 +393,71 @@ void _merge( target.setRange( targetOffset, targetOffset + (secondEnd - cursor2), secondList, cursor2); } + +/// Sort [elements] using a quick-sort algorithm. +/// +/// The elements are compared using [compare] on the elements. +/// If [start] and [end] are provided, only that range is sorted. +/// +/// Uses insertion sort for smaller sublists. +void quickSort(List elements, int Function(E a, E b) compare, + [int start = 0, int? end]) { + end = RangeError.checkValidRange(start, end, elements.length); + _quickSort(elements, identity, compare, Random(), start, end); +} + +/// Sort [elements] using a quick-sort algorithm. +/// +/// The elements are compared using [compare] on the value provided by [keyOf] +/// on the element. +/// If [start] and [end] are provided, only that range is sorted. +/// +/// Uses insertion sort for smaller sublists. +void quickSortBy( + List list, K Function(E element) keyOf, int Function(K a, K b) compare, + [int start = 0, int? end]) { + end = RangeError.checkValidRange(start, end, list.length); + _quickSort(list, keyOf, compare, Random(), start, end); +} + +void _quickSort(List list, K Function(E element) keyOf, + int Function(K a, K b) compare, Random random, int start, int end) { + const minQuickSortLength = 24; + var length = end - start; + while (length >= minQuickSortLength) { + var pivotIndex = random.nextInt(length) + start; + var pivot = list[pivotIndex]; + var pivotKey = keyOf(pivot); + var endSmaller = start; + var startGreater = end; + var startPivots = end - 1; + list[pivotIndex] = list[startPivots]; + list[startPivots] = pivot; + while (endSmaller < startPivots) { + var current = list[endSmaller]; + var relation = compare(keyOf(current), pivotKey); + if (relation < 0) { + endSmaller++; + } else { + startPivots--; + var currentTarget = startPivots; + list[endSmaller] = list[startPivots]; + if (relation > 0) { + startGreater--; + currentTarget = startGreater; + list[startPivots] = list[startGreater]; + } + list[currentTarget] = current; + } + } + if (endSmaller - start < end - startGreater) { + _quickSort(list, keyOf, compare, random, start, endSmaller); + start = startGreater; + } else { + _quickSort(list, keyOf, compare, random, startGreater, end); + end = endSmaller; + } + length = end - start; + } + _movingInsertionSort(list, keyOf, compare, start, end, list, start); +} diff --git a/pkgs/collection/lib/src/functions.dart b/pkgs/collection/lib/src/functions.dart index 07c8d4bb..8e73f16a 100644 --- a/pkgs/collection/lib/src/functions.dart +++ b/pkgs/collection/lib/src/functions.dart @@ -64,7 +64,7 @@ Map> groupBy(Iterable values, T Function(S) key) { /// Returns `null` if [values] is empty. S? minBy(Iterable values, T Function(S) orderBy, {int Function(T, T)? compare}) { - compare ??= defaultCompare(); + compare ??= defaultCompare; S? minValue; T? minOrderBy; @@ -88,7 +88,7 @@ S? minBy(Iterable values, T Function(S) orderBy, /// Returns `null` if [values] is empty. S? maxBy(Iterable values, T Function(S?) orderBy, {int? Function(T, T)? compare}) { - compare ??= defaultCompare(); + compare ??= defaultCompare; S? maxValue; T? maxOrderBy; diff --git a/pkgs/collection/lib/src/iterable_extensions.dart b/pkgs/collection/lib/src/iterable_extensions.dart new file mode 100644 index 00000000..728c1ecb --- /dev/null +++ b/pkgs/collection/lib/src/iterable_extensions.dart @@ -0,0 +1,762 @@ +// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import 'package:collection/src/utils.dart'; + +import 'algorithms.dart'; + +/// Extensions that apply to all iterables. +/// +/// These extensions provide direct access to some of the +/// algorithms expose by this package, +/// as well as some generally useful convenience methods. +/// +/// More specialized extension methods that only apply to +/// iterables with specific element types include those of +/// [IterableComparableExtension] and [IterableNullableExtension]. +extension IterableExtension on Iterable { + /// The elements that do not satisfy [test]. + Iterable whereNot(bool Function(T element) test) => + where((element) => !test(element)); + + /// Creates a sorted list of the elements of the iterable. + /// + /// The elements are ordered by the [compare] [Comparator]. + List sorted(Comparator compare) => [...this]..sort(compare); + + /// Creates a sorted list of the elements of the iterable. + /// + /// The elements are ordered by the natural ordering of the + /// property [keyOf] of the element. + List sortedBy>(K Function(T element) keyOf) { + var elements = [...this]; + quickSortBy(elements, keyOf, compareComparable); + return elements; + } + + /// Creates a sorted list of the elements of the iterable. + /// + /// The elements are ordered by the [compare] [Comparator] of the + /// property [keyOf] of the element. + List sortedByCompare( + K Function(T element) keyOf, Comparator compare) { + var elements = [...this]; + quickSortBy(elements, keyOf, compare); + return elements; + } + + /// Whether the elements are sorted by the [compare] ordering. + /// + /// Compares pairs of elements using `compare` to check that + /// the elements of this iterable to check + /// that earlier elements always compare + /// smaller than or equal to later elements. + /// + /// An single-element or empty iterable is trivially in sorted order. + bool isSorted(Comparator compare) { + var iterator = this.iterator; + if (!iterator.moveNext()) return true; + var previousElement = iterator.current; + while (iterator.moveNext()) { + var element = iterator.current; + if (compare(previousElement, element) > 0) return false; + previousElement = element; + } + return true; + } + + /// Whether the elements are sorted by their [keyOf] property. + /// + /// Applies [keyOf] to each element in iteration order, + /// then checks whether the results are in non-decreasing [Comparable] order. + bool isSortedBy>(K Function(T element) keyOf) { + var iterator = this.iterator; + if (!iterator.moveNext()) return true; + var previousKey = keyOf(iterator.current); + while (iterator.moveNext()) { + var key = keyOf(iterator.current); + if (previousKey.compareTo(key) > 0) return false; + previousKey = key; + } + return true; + } + + /// Whether the elements are [compare]-sorted by their [keyOf] property. + /// + /// Applies [keyOf] to each element in iteration order, + /// then checks whether the results are in non-decreasing order + /// using the [compare] [Comparator].. + bool isSortedByCompare( + K Function(T element) keyOf, Comparator compare) { + var iterator = this.iterator; + if (!iterator.moveNext()) return true; + var previousKey = keyOf(iterator.current); + while (iterator.moveNext()) { + var key = keyOf(iterator.current); + if (compare(previousKey, key) > 0) return false; + previousKey = key; + } + return true; + } + + /// Takes an action for each element. + /// + /// Calls [action] for each element along with the index in the + /// iteration order. + void forEachIndexed(void Function(int index, T element) action) { + var index = 0; + for (var element in this) { + action(index++, element); + } + } + + /// Takes an action for each element as long as desired. + /// + /// Calls [action] for each element. + /// Stops iteration if [action] returns `false`. + void forEachWhile(bool Function(T element) action) { + for (var element in this) { + if (!action(element)) break; + } + } + + /// Takes an action for each element and index as long as desired. + /// + /// Calls [action] for each element along with the index in the + /// iteration order. + /// Stops iteration if [action] returns `false`. + void forEachIndexedWhile(bool Function(int index, T element) action) { + var index = 0; + for (var element in this) { + if (!action(index++, element)) break; + } + } + + /// Maps each element and its index to a new value. + Iterable mapIndexed(R Function(int index, T element) convert) sync* { + var index = 0; + for (var element in this) { + yield convert(index++, element); + } + } + + /// The elements whose value and index satisfies [test]. + Iterable whereIndexed(bool Function(int index, T element) test) sync* { + var index = 0; + for (var element in this) { + if (test(index++, element)) yield element; + } + } + + /// The elements whose value and index do not satisfy [test]. + Iterable whereNotIndexed(bool Function(int index, T element) test) sync* { + var index = 0; + for (var element in this) { + if (!test(index++, element)) yield element; + } + } + + /// Expands each element and index to a number of elements in a new iterable. + Iterable expandIndexed( + Iterable Function(int index, T element) expend) sync* { + var index = 0; + for (var element in this) { + yield* expend(index++, element); + } + } + + /// Combine the elements with each other and the current index. + /// + /// Calls [combine] for each element except the first. + /// The call passes the index of the current element, the result of the + /// previous call, or the first element for the first call, and + /// the current element. + /// + /// Returns the result of the last call, or the first element if + /// there is only one element. + /// There must be at least one element. + T reduceIndexed(T Function(int index, T previous, T element) combine) { + var iterator = this.iterator; + if (!iterator.moveNext()) { + throw StateError('no elements'); + } + var index = 1; + var result = iterator.current; + while (iterator.moveNext()) { + result = combine(index++, result, iterator.current); + } + return result; + } + + /// Combine the elements with a value and the current index. + /// + /// Calls [combine] for each element with the current index, + /// the result of the previous call, or [initialValue] for the first element, + /// and the current element. + /// + /// Returns the result of the last call to [combine], + /// or [initialValue] if there are no elements. + R foldIndexed( + R initialValue, R Function(int index, R previous, T element) combine) { + var result = initialValue; + var index = 0; + for (var element in this) { + result = combine(index++, result, element); + } + return result; + } + + /// The first element satisfying [test], or `null` if there are none. + T? firstWhereOrNull(bool Function(T element) test) { + for (var element in this) { + if (test(element)) return element; + } + return null; + } + + /// The first element whose value and index satisfies [test]. + /// + /// Returns `null` if there are no element and index satisfying [test]. + T? firstWhereIndexedOrNull(bool Function(int index, T element) test) { + var index = 0; + for (var element in this) { + if (test(index++, element)) return element; + } + return null; + } + + /// The first element, or `null` if the iterable is empty. + T? get firstOrNull { + var iterator = this.iterator; + if (iterator.moveNext()) return iterator.current; + return null; + } + + /// The last element satisfying [test], or `null` if there are none. + T? lastWhereOrNull(bool Function(T element) test) { + T? result; + for (var element in this) { + if (test(element)) result = element; + } + return result; + } + + /// The last element whose index and value satisfies [test]. + /// + /// Returns `null` if no element and index satisfies [test]. + T? lastWhereIndexedOrNull(bool Function(int index, T element) test) { + T? result; + var index = 0; + for (var element in this) { + if (test(index++, element)) result = element; + } + return result; + } + + /// The last element, or `null` if the iterable is empty. + T? get lastOrNull { + if (isEmpty) return null; + return last; + } + + /// The single element satisfying [test]. + /// + /// Returns `null` if there are either no elements + /// or more than one element satisfying [test]. + /// + /// **Notice**: This behavior differs from [Iterable.singleWhere] + /// which always throws if there are more than one match, + /// and only calls the `orElse` function on zero matchs. + T? singleWhereOrNull(bool Function(T element) test) { + T? result; + var found = false; + for (var element in this) { + if (test(element)) { + if (!found) { + result = element; + found = true; + } else { + return null; + } + } + } + return result; + } + + /// The single element satisfying [test]. + /// + /// Returns `null` if there are either none + /// or more than one element and index satisfying [test]. + T? singleWhereIndexedOrNull(bool Function(int index, T element) test) { + T? result; + var found = false; + var index = 0; + for (var element in this) { + if (test(index++, element)) { + if (!found) { + result = element; + found = true; + } else { + return null; + } + } + } + return result; + } + + /// The single element of the iterable, or `null`. + /// + /// The value is `null` if the iterable is empty + /// or it contains more than one element. + T? get singleOrNull { + var iterator = this.iterator; + if (iterator.moveNext()) { + var result = iterator.current; + if (!iterator.moveNext()) { + return result; + } + } + return null; + } + + /// Groups elements by [keyOf] then folds the elements in each group. + /// + /// A key is found for each element using [keyOf]. + /// Then the elements with the same key are all folded using [combine]. + /// The first call to [combine] for a particular key receives [null] as + /// the previous value, the remaining ones receive the result of the previous call. + /// + /// Can be used to _group_ elements into arbitrary collections. + /// For example [groupSetsBy] could be written as: + /// ```dart + /// iterable.groupFoldBy(keyOf, + /// (Set? previous, T element) => (previous ?? {})..add(element)); + /// ```` + Map groupFoldBy( + K Function(T element) keyOf, G Function(G? previous, T element) combine) { + var result = {}; + for (var element in this) { + var key = keyOf(element); + result[key] = combine(result[key], element); + } + return result; + } + + /// Groups elements into sets by [keyOf]. + Map> groupSetsBy(K Function(T element) keyOf) { + var result = >{}; + for (var element in this) { + (result[keyOf(element)] ??= {})..add(element); + } + return result; + } + + /// Groups elements into lists by [keyOf]. + Map> groupListsBy(K Function(T element) keyOf) { + var result = >{}; + for (var element in this) { + (result[keyOf(element)] ??= [])..add(element); + } + return result; + } + + /// Splits the elements into chunks before some elements. + /// + /// Each element except the first is checked using [test] + /// for whether it should start a new chunk. + /// If so, the elements since the previous chunk-starting element + /// are emitted as a list. + /// Any final elements are emitted at the end. + /// + /// Example: + /// Example: + /// ```dart + /// var parts = [1, 2, 3, 4, 5, 6, 7, 8, 9].split(isPrime); + /// print(parts); // ([1], [2], [3, 4], [5, 6], [7, 8, 9]) + /// ``` + Iterable> splitBefore(bool Function(T element) test) => + splitBeforeIndexed((_, element) => test(element)); + + /// Splits the elements into chunks before some elements. + /// + /// Each element is checked using [test] for whether it should start a new chunk. + /// If so, the elements since the previous chunk-starting element + /// are emitted as a list. + /// Any final elements are emitted at the end. + /// + /// Example: + /// ```dart + /// var parts = [1, 0, 2, 1, 5, 7, 6, 8, 9].splitAfter(isPrime); + /// print(parts); // ([1, 0, 2], [1, 5], [7], [6, 8, 9]) + /// ``` + Iterable> splitAfter(bool Function(T element) test) => + splitAfterIndexed((_, element) => test(element)); + + /// Splits the elements into chunks between some elements. + /// + /// Each pair of adjacent elements are checked using [test] + /// for whether a chunk should end between them. + /// If so, the elements since the previous chunk-splitting elements + /// are emitted as a list. + /// Any final elements are emitted at the end. + /// + /// Example: + /// ```dart + /// var parts = [1, 0, 2, 1, 5, 7, 6, 8, 9].splitBetween((i, v1, v2) => v1 > v2); + /// print(parts); // ([1], [0, 2], [1, 5, 7], [6, 8, 9]) + /// ``` + Iterable> splitBetween(bool Function(T first, T second) test) => + splitBetweenIndexed((_, first, second) => test(first, second)); + + /// Splits the elements into chunks before some elements and indices. + /// + /// Each element and index except the first is checked using [test] + /// for whether it should start a new chunk. + /// If so, the elements since the previous chunk-starting element + /// are emitted as a list. + /// Any final elements are emitted at the end. + /// + /// Example: + /// ```dart + /// var parts = [1, 0, 2, 1, 5, 7, 6, 8, 9] + /// .splitBeforeIndexed((i, v) => i < v); + /// print(parts); // ([1], [0, 2], [1, 5, 7], [6, 8, 9]) + /// ``` + Iterable> splitBeforeIndexed( + bool Function(int index, T element) test) sync* { + var iterator = this.iterator; + if (!iterator.moveNext()) { + return; + } + var index = 1; + var chunk = [iterator.current]; + while (iterator.moveNext()) { + var element = iterator.current; + if (test(index++, element)) { + yield chunk; + chunk = []; + } + chunk.add(element); + } + yield chunk; + } + + /// Splits the elements into chunks after some elements and indices. + /// + /// Each element and index is checked using [test] + /// for whether it should end the current chunk. + /// If so, the elements since the previous chunk-ending element + /// are emitted as a list. + /// Any final elements are emitted at the end, whether the last + /// element should be split after or not. + /// + /// Example: + /// ```dart + /// var parts = [1, 0, 2, 1, 5, 7, 6, 8, 9].splitAfterIndexed((i, v) => i < v); + /// print(parts); // ([1, 0], [2, 1], [5, 7, 6], [8, 9]) + /// ``` + Iterable> splitAfterIndexed( + bool Function(int index, T element) test) sync* { + var index = 0; + List? chunk; + for (var element in this) { + (chunk ??= []).add(element); + if (test(index++, element)) { + yield chunk; + chunk = null; + } + } + if (chunk != null) yield chunk; + } + + /// Splits the elements into chunks between some elements and indices. + /// + /// Each pair of adjacent elements and the index of the latter are + /// checked using [test] for whether a chunk should end between them. + /// If so, the elements since the previous chunk-splitting elements + /// are emitted as a list. + /// Any final elements are emitted at the end. + /// + /// Example: + /// ```dart + /// var parts = [1, 0, 2, 1, 5, 7, 6, 8, 9] + /// .splitBetweenIndexed((i, v1, v2) => v1 > v2); + /// print(parts); // ([1], [0, 2], [1, 5, 7], [6, 8, 9]) + /// ``` + Iterable> splitBetweenIndexed( + bool Function(int index, T first, T second) test) sync* { + var iterator = this.iterator; + if (!iterator.moveNext()) return; + var previous = iterator.current; + var chunk = [previous]; + var index = 1; + while (iterator.moveNext()) { + var element = iterator.current; + if (test(index++, previous, element)) { + yield chunk; + chunk = []; + } + chunk.add(element); + previous = element; + } + yield chunk; + } + + /// Whether no element satisfies [test]. + /// + /// Returns true if no element satisfies [test], + /// and false if at least one does. + /// + /// Equivalent to `iterable.every((x) => !test(x))` or + /// `!iterable.any(test)`. + bool none(bool Function(T) test) { + for (var element in this) { + if (test(element)) return false; + } + return true; + } +} + +/// Extensions that apply to iterables with a nullable element type. +extension IterableNullableExtension on Iterable { + /// The non-`null` elements of this `Iterable`. + /// + /// Returns an iterable which emits all the non-`null` elements + /// of this iterable, in their original iteration order. + /// + /// For an `Iterable`, this method is equivalent to `.whereType()`. + Iterable whereNotNull() sync* { + for (var element in this) { + if (element != null) yield element; + } + } +} + +/// Extensions that apply to iterables of numbers. +extension IterableNumberExtension on Iterable { + /// The sum of the elements. + /// + /// The sum is zero if the iterable is empty. + num get sum { + num result = 0; + for (var value in this) { + result += value; + } + return result; + } + + /// The arithmetic mean of the elements of a non-empty iterable. + /// + /// The arithmetic mean is the sum of the elements + /// divided by the number of elements. + /// + /// The iterable must not be empty. + double get average { + var result = 0.0; + var count = 0; + for (var value in this) { + count += 1; + result += (value - result) / count; + } + if (count == 0) throw StateError('No elements'); + return result; + } +} + +/// Extension on iterables of integers. +/// +/// Specialized version of some extensions of [IterableNumberExtension]. +extension IterableIntegerExtension on Iterable { + /// The sum of the elements. + /// + /// The sum is zero if the iterable is empty. + int get sum { + var result = 0; + for (var value in this) { + result += value; + } + return result; + } + + /// The arithmetic mean of the elements of a non-empty iterable. + /// + /// The arithmetic mean is the sum of the elements + /// divided by the number of elements. + /// This method is specialized for integers, + /// and may give a different result than [IterableNumberExtension.average] + /// for the same values, because the the number algorithm + /// converts all numbers to doubles. + /// + /// The iterable must not be empty. + double get average { + var average = 0; + var remainder = 0; + var count = 0; + for (var value in this) { + // Invariant: Sum of values so far = average * count + remainder. + // (Unless overflow has occurred). + count += 1; + var delta = value - average + remainder; + average += delta ~/ count; + remainder = delta.remainder(count); + } + if (count == 0) throw StateError('No elements'); + return average + remainder / count; + } +} + +/// Extension on iterables of double. +/// +/// Specialized version of some extensions of [IterableNumberExtension]. +extension IterableDoubleExtension on Iterable { + /// The sum of the elements. + /// + /// The sum is zero if the iterable is empty. + double get sum { + var result = 0.0; + for (var value in this) { + result += value; + } + return result; + } +} + +/// Extensions on iterables whose elements are also iterables. +extension IterableIterableExtension on Iterable> { + /// The sequential elements of each iterable in this iterable. + /// + /// Iterates the elements of this iterable. + /// For each one, which is itself an iterable, + /// all the elements of that are emitted + /// on the returned iterable, before moving on to the next element. + Iterable get flattened sync* { + for (var elements in this) { + yield* elements; + } + } +} + +/// Extensions that apply to iterables of [Comparable] elements. +/// +/// These operations can assume that the elements have a natural ordering, +/// and can therefore omit, or make it optional, for the user to provide +/// a [Comparator]. +extension IterableComparableExtension> on Iterable { + /// A minimal element of the iterable, or `null` it the iterable is empty. + T? get minOrNull { + var iterator = this.iterator; + if (iterator.moveNext()) { + var value = iterator.current; + while (iterator.moveNext()) { + var newValue = iterator.current; + if (value.compareTo(newValue) > 0) { + value = newValue; + } + } + return value; + } + return null; + } + + /// A minimal element of the iterable. + /// + /// The iterable must not be empty. + T get min { + var iterator = this.iterator; + if (iterator.moveNext()) { + var value = iterator.current; + while (iterator.moveNext()) { + var newValue = iterator.current; + if (value.compareTo(newValue) > 0) { + value = newValue; + } + } + return value; + } + throw StateError('No element'); + } + + /// A maximal element of the iterable, or `null` if the iterable is empty. + T? get maxOrNull { + var iterator = this.iterator; + if (iterator.moveNext()) { + var value = iterator.current; + while (iterator.moveNext()) { + var newValue = iterator.current; + if (value.compareTo(newValue) < 0) { + value = newValue; + } + } + return value; + } + return null; + } + + /// A maximal element of the iterable. + /// + /// The iterable must not be empty. + T get max { + var iterator = this.iterator; + if (iterator.moveNext()) { + var value = iterator.current; + while (iterator.moveNext()) { + var newValue = iterator.current; + if (value.compareTo(newValue) < 0) { + value = newValue; + } + } + return value; + } + throw StateError('No element'); + } + + /// Creates a sorted list of the elements of the iterable. + /// + /// If the [compare] function is not supplied, the sorting uses the + /// natural [Comparable] ordering of the elements. + List sorted([Comparator? compare]) => [...this]..sort(compare); + + /// Whether the elements are sorted by the [compare] ordering. + /// + /// If [compare] is omitted, it defaults to comparing the + /// elements using their natural [Comparable] ordering. + bool isSorted([Comparator? compare]) { + if (compare != null) { + return IterableExtension(this).isSorted(compare); + } + var iterator = this.iterator; + if (!iterator.moveNext()) return true; + var previousElement = iterator.current; + while (iterator.moveNext()) { + var element = iterator.current; + if (previousElement.compareTo(element) > 0) return false; + previousElement = element; + } + return true; + } +} + +/// Extensions on comparator functions. +extension ComparatorExtension on Comparator { + /// The inverse ordering of this comparator. + int Function(T, T) get inverse => (T a, T b) => this(b, a); + + /// Makes a comparator on [R] values using this comparator. + /// + /// Compares [R] values by comparing their [keyOf] value + /// using this comparator. + Comparator compareBy(T Function(R) keyOf) => + (R a, R b) => this(keyOf(a), keyOf(b)); + + /// Combine comparators sequentially. + /// + /// Creates a comparator which orders elements the same way as + /// this comparator, except that when two elements are considered + /// equal, the [tieBreaker] comparator is used instead. + Comparator then(Comparator tieBreaker) => (T a, T b) { + var result = this(a, b); + if (result == 0) result = tieBreaker(a, b); + return result; + }; +} diff --git a/pkgs/collection/lib/src/list_extensions.dart b/pkgs/collection/lib/src/list_extensions.dart new file mode 100644 index 00000000..c1f4af04 --- /dev/null +++ b/pkgs/collection/lib/src/list_extensions.dart @@ -0,0 +1,482 @@ +// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +// Extension methods on common collection types. +import 'dart:collection'; +import 'dart:math'; + +import 'algorithms.dart'; +import 'algorithms.dart' as algorithms; +import 'equality.dart'; +import 'utils.dart'; + +/// Various extensions on lists of arbitrary elements. +extension ListExtensions on List { + /// Returns the index of [element] in this sorted list. + /// + /// Uses binary search to find the location of [element]. + /// The list *must* be sorted according to [compare], + /// otherwise the result is unspecified + /// + /// Returns -1 if [element] does not occur in this list. + int binarySearch(E element, int Function(E, E) compare) => + algorithms.binarySearchBy(this, identity, compare, element); + + /// Returns the index of [element] in this sorted list. + /// + /// Uses binary search to find the location of [element]. + /// The list *must* be sorted according to [compare] on the [keyOf] of elements, + /// otherwise the result is unspecified. + /// + /// Returns -1 if [element] does not occur in this list. + /// + /// If [start] and [end] are supplied, only the list range from [start] to [end] + /// is searched, and only that range needs to be sorted. + int binarySearchByCompare( + E element, K Function(E element) keyOf, int Function(K, K) compare, + [int start = 0, int? end]) => + algorithms.binarySearchBy( + this, keyOf, compare, element, start, end); + + /// Returns the index of [element] in this sorted list. + /// + /// Uses binary search to find the location of [element]. + /// The list *must* be sorted according to the natural ordering of + /// the [keyOf] of elements, otherwise the result is unspecified. + /// + /// Returns -1 if [element] does not occur in this list. + /// + /// If [start] and [end] are supplied, only the list range from [start] to [end] + /// is searched, and only that range needs to be sorted. + int binarySearchBy>( + E element, K Function(E element) keyOf, [int start = 0, int? end]) => + algorithms.binarySearchBy( + this, keyOf, (a, b) => a.compareTo(b), element, start, end); + + /// Returns the index where [element] should be in this sorted list. + /// + /// Uses binary search to find the location of [element]. + /// The list *must* be sorted according to [compare], + /// otherwise the result is unspecified. + /// + /// If [element] is in the list, its index is returned, + /// otherwise returns the first position where adding [element] + /// would keep the list sorted. This may be the [length] of + /// the list if all elements of the list compare less than + /// [element]. + int lowerBound(E element, int Function(E, E) compare) => + algorithms.lowerBoundBy(this, identity, compare, element); + + /// Returns the index where [element] should be in this sorted list. + /// + /// Uses binary search to find the location of [element]. + /// The list *must* be sorted according to [compare] of + /// the [keyOf] of the elements, otherwise the result is unspecified. + /// + /// If [element] is in the list, its index is returned, + /// otherwise returns the first position where adding [element] + /// would keep the list sorted. This may be the [length] of + /// the list if all elements of the list compare less than + /// [element]. + /// + /// If [start] and [end] are supplied, only that range is searched, + /// and only that range need to be sorted. + int lowerBoundByCompare( + E element, K Function(E) keyOf, int Function(K, K) compare, + [int start = 0, int? end]) => + algorithms.lowerBoundBy(this, keyOf, compare, element, start, end); + + /// Returns the index where [element] should be in this sorted list. + /// + /// Uses binary search to find the location of [element]. + /// The list *must* be sorted according to the + /// natural ordering of the [keyOf] of the elements, + /// otherwise the result is unspecified. + /// + /// If [element] is in the list, its index is returned, + /// otherwise returns the first position where adding [element] + /// would keep the list sorted. This may be the [length] of + /// the list if all elements of the list compare less than + /// [element]. + /// + /// If [start] and [end] are supplied, only that range is searched, + /// and only that range need to be sorted. + int lowerBoundBy>(E element, K Function(E) keyOf, + [int start = 0, int? end]) => + algorithms.lowerBoundBy( + this, keyOf, compareComparable, element, start, end); + + /// Takes an action for each element. + /// + /// Calls [action] for each element along with the index in the + /// iteration order. + void forEachIndexed(void Function(int index, E element) action) { + for (var index = 0; index < length; index++) { + action(index, this[index]); + } + } + + /// Takes an action for each element as long as desired. + /// + /// Calls [action] for each element. + /// Stops iteration if [action] returns `false`. + void forEachWhile(bool Function(E element) action) { + for (var index = 0; index < length; index++) { + if (!action(this[index])) break; + } + } + + /// Takes an action for each element and index as long as desired. + /// + /// Calls [action] for each element along with the index in the + /// iteration order. + /// Stops iteration if [action] returns `false`. + void forEachIndexedWhile(bool Function(int index, E element) action) { + for (var index = 0; index < length; index++) { + if (!action(index, this[index])) break; + } + } + + /// Maps each element and its index to a new value. + Iterable mapIndexed(R Function(int index, E element) convert) sync* { + for (var index = 0; index < length; index++) { + yield convert(index, this[index]); + } + } + + /// The elements whose value and index satisfies [test]. + Iterable whereIndexed(bool Function(int index, E element) test) sync* { + for (var index = 0; index < length; index++) { + var element = this[index]; + if (test(index, element)) yield element; + } + } + + /// The elements whose value and index do not satisfy [test]. + Iterable whereNotIndexed(bool Function(int index, E element) test) sync* { + for (var index = 0; index < length; index++) { + var element = this[index]; + if (!test(index, element)) yield element; + } + } + + /// Expands each element and index to a number of elements in a new iterable. + /// + /// Like [Iterable.expand] except that the callback function is supplied with + /// both the index and the element. + Iterable expendIndexed( + Iterable Function(int index, E element) expand) sync* { + for (var index = 0; index < length; index++) { + yield* expand(index, this[index]); + } + } + + /// Sort a range of elements by [compare]. + void sortRange(int start, int end, int Function(E a, E b) compare) { + quickSortBy(this, identity, compare, start, end); + } + + /// Sorts elements by the [compare] of their [keyOf] property. + /// + /// Sorts elements from [start] to [end], defaulting to the entire list. + void sortByCompare( + K Function(E element) keyOf, int Function(K a, K b) compare, + [int start = 0, int? end]) { + quickSortBy(this, keyOf, compare, start, end); + } + + /// Sorts elements by the natural order of their [keyOf] property. + /// + /// Sorts elements from [start] to [end], defaulting to the entire list. + void sortBy>(K Function(E element) keyOf, + [int start = 0, int? end]) { + quickSortBy(this, keyOf, compareComparable, start, end); + } + + /// Shuffle a range of elements. + void shuffleRange(int start, int end, [Random? random]) { + RangeError.checkValidRange(start, end, length); + shuffle(this, start, end, random); + } + + /// Reverses the elements in a range of the list. + void reverseRange(int start, int end) { + RangeError.checkValidRange(start, end, length); + while (start < --end) { + var tmp = this[start]; + this[start] = this[end]; + this[end] = tmp; + start += 1; + } + } + + /// Swaps two elements of this list. + void swap(int index1, int index2) { + RangeError.checkValidIndex(index1, this, 'index1'); + RangeError.checkValidIndex(index2, this, 'index2'); + var tmp = this[index1]; + this[index1] = this[index2]; + this[index2] = tmp; + } + + /// A fixed length view of a range of this list. + /// + /// The view is backed by this this list, which must not + /// change its length while the view is being used. + /// + /// The view can be used to perform specific whole-list + /// actions on a part of the list. + /// For example, to see if a list contains more than one + /// "marker" element, you can do: + /// ```dart + /// someList.slice(someList.indexOf(marker) + 1).contains(marker) + /// ``` + ListSlice slice(int start, [int? end]) { + end = RangeError.checkValidRange(start, end, length); + var self = this; + if (self is ListSlice) return self.slice(start, end); + return ListSlice(this, start, end); + } + + /// Whether [other] has the same elements as this list. + /// + /// Returns true iff [other] has the same [length] + /// as this list, and the elemets of this list and [other] + /// at the same indices are equal according to [equality], + /// which defaults to using `==`. + bool equals(List other, [Equality equality = const DefaultEquality()]) { + if (length != other.length) return false; + for (var i = 0; i < length; i++) { + if (!equality.equals(this[i], other[i])) return false; + } + return true; + } +} + +/// Various extensions on lists of comparable elements. +extension ListComparableExtensions> on List { + /// Returns the index of [element] in this sorted list. + /// + /// Uses binary search to find the location of [element]. + /// The list *must* be sorted according to [compare], + /// otherwise the result is unspecified. + /// If [compare] is omitted, it uses the natural order of the elements. + /// + /// Returns -1 if [element] does not occur in this list. + int binarySearch(E element, [int Function(E, E)? compare]) => + algorithms.binarySearchBy( + this, identity, compare ?? compareComparable, element); + + /// Returns the index where [element] should be in this sorted list. + /// + /// Uses binary search to find the location of where [element] should be. + /// The list *must* be sorted according to [compare], + /// otherwise the result is unspecified. + /// If [compare] is omitted, it uses the natural order of the elements. + /// + /// If [element] does not occur in this list, the returned index is + /// the first index where inserting [element] would keep the list + /// sorted. + int lowerBound(E element, [int Function(E, E)? compare]) => + algorithms.lowerBoundBy( + this, identity, compare ?? compareComparable, element); + + /// Sort a range of elements by [compare]. + /// + /// If [compare] is omitted, the range is sorted according to the + /// natural ordering of the elements. + void sortRange(int start, int end, [int Function(E a, E b)? compare]) { + RangeError.checkValidRange(start, end, length); + algorithms.quickSortBy( + this, identity, compare ?? compareComparable, start, end); + } +} + +/// A list view of a range of another list. +/// +/// Wraps the range of the [source] list from [start] to [end] +/// and acts like a fixed-length list view of that range. +/// The source list must not change length while a list slice is being used. +class ListSlice extends ListBase { + /// Original length of [source]. + /// + /// Used to detect modifications to [source] which may invalidate + /// the slice. + final int _initialSize; + + /// The original list backing this slice. + final List source; + + /// The start index of the slice. + final int start; + + @override + final int length; + + /// Creates a slice of [source] from [start] to [end]. + ListSlice(this.source, this.start, int end) + : length = end - start, + _initialSize = source.length { + RangeError.checkValidRange(start, end, source.length); + } + + // No argument checking, for internal use. + ListSlice._(this._initialSize, this.source, this.start, this.length); + + /// The end index of the slice. + int get end => start + length; + + @override + E operator [](int index) { + if (source.length != _initialSize) { + throw ConcurrentModificationError(source); + } + RangeError.checkValidIndex(index, this, null, length); + return source[start + index]; + } + + @override + void operator []=(int index, E value) { + if (source.length != _initialSize) { + throw ConcurrentModificationError(source); + } + RangeError.checkValidIndex(index, this, null, length); + source[start + index] = value; + } + + @override + void setRange(int start, int end, Iterable iterable, [int skipCount = 0]) { + if (source.length != _initialSize) { + throw ConcurrentModificationError(source); + } + RangeError.checkValidRange(start, end, length); + source.setRange(start + start, start + end, iterable, skipCount); + } + + /// A fixed length view of a range of this list. + /// + /// The view is backed by this this list, which must not + /// change its length while the view is being used. + /// + /// The view can be used to perform specific whole-list + /// actions on a part of the list. + /// For example, to see if a list contains more than one + /// "marker" element, you can do: + /// ```dart + /// someList.slice(someList.indexOf(marker) + 1).contains(marker) + /// ``` + ListSlice slice(int start, [int? end]) { + end = RangeError.checkValidRange(start, end, length); + return ListSlice._(_initialSize, source, start + start, end - start); + } + + @override + void shuffle([Random? random]) { + if (source.length != _initialSize) { + throw ConcurrentModificationError(source); + } + algorithms.shuffle(source, start, end, random); + } + + @override + void sort([int Function(E a, E b)? compare]) { + if (source.length != _initialSize) { + throw ConcurrentModificationError(source); + } + compare ??= defaultCompare; + quickSort(source, compare, start, start + length); + } + + /// Sort a range of elements by [compare]. + void sortRange(int start, int end, int Function(E a, E b) compare) { + if (source.length != _initialSize) { + throw ConcurrentModificationError(source); + } + source.sortRange(start, end, compare); + } + + /// Shuffles a range of elements. + /// + /// If [random] is omitted, a new instance of [Random] is used. + void shuffleRange(int start, int end, [Random? random]) { + if (source.length != _initialSize) { + throw ConcurrentModificationError(source); + } + RangeError.checkValidRange(start, end, length); + algorithms.shuffle(source, this.start + start, this.start + end, random); + } + + /// Reverses a range of elements. + void reverseRange(int start, int end) { + RangeError.checkValidRange(start, end, length); + source.reverseRange(this.start + start, this.start + end); + } + + // Act like a fixed-length list. + + @override + set length(int newLength) { + throw UnsupportedError('Cannot change the length of a fixed-length list'); + } + + @override + void add(E element) { + throw UnsupportedError('Cannot add to a fixed-length list'); + } + + @override + void insert(int index, E element) { + throw UnsupportedError('Cannot add to a fixed-length list'); + } + + @override + void insertAll(int index, Iterable iterable) { + throw UnsupportedError('Cannot add to a fixed-length list'); + } + + @override + void addAll(Iterable iterable) { + throw UnsupportedError('Cannot add to a fixed-length list'); + } + + @override + bool remove(Object? element) { + throw UnsupportedError('Cannot remove from a fixed-length list'); + } + + @override + void removeWhere(bool Function(E element) test) { + throw UnsupportedError('Cannot remove from a fixed-length list'); + } + + @override + void retainWhere(bool Function(E element) test) { + throw UnsupportedError('Cannot remove from a fixed-length list'); + } + + @override + void clear() { + throw UnsupportedError('Cannot clear a fixed-length list'); + } + + @override + E removeAt(int index) { + throw UnsupportedError('Cannot remove from a fixed-length list'); + } + + @override + E removeLast() { + throw UnsupportedError('Cannot remove from a fixed-length list'); + } + + @override + void removeRange(int start, int end) { + throw UnsupportedError('Cannot remove from a fixed-length list'); + } + + @override + void replaceRange(int start, int end, Iterable newContents) { + throw UnsupportedError('Cannot remove from a fixed-length list'); + } +} diff --git a/pkgs/collection/lib/src/priority_queue.dart b/pkgs/collection/lib/src/priority_queue.dart index 6952a815..345d6f70 100644 --- a/pkgs/collection/lib/src/priority_queue.dart +++ b/pkgs/collection/lib/src/priority_queue.dart @@ -202,7 +202,7 @@ class HeapPriorityQueue implements PriorityQueue { /// is the case, `E` must implement [Comparable], and this is checked at /// runtime for every comparison. HeapPriorityQueue([int Function(E, E)? comparison]) - : comparison = comparison ?? defaultCompare(); + : comparison = comparison ?? defaultCompare; E _elementAt(int index) => _queue[index] ?? (null as E); diff --git a/pkgs/collection/lib/src/utils.dart b/pkgs/collection/lib/src/utils.dart index 00ea9320..64088f0f 100644 --- a/pkgs/collection/lib/src/utils.dart +++ b/pkgs/collection/lib/src/utils.dart @@ -2,6 +2,19 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -/// Returns a [Comparator] that asserts that its first argument is comparable. -Comparator defaultCompare() => - (value1, value2) => (value1 as Comparable).compareTo(value2); +/// A [Comparator] that asserts that its first argument is comparable. +/// +/// The function behaves just like [List.sort]'s +/// default comparison function. It is entirely dynamic in its testing. +/// +/// Should be used when optimistically comparing object that are assumed +/// to be comparable. +/// If the elements are known to be comparable, use [compareComparable]. +int defaultCompare(Object? value1, Object? value2) => + (value1 as Comparable).compareTo(value2); + +/// A reusable identity function at any type. +T identity(T value) => value; + +/// A reusable typed comparable comparator. +int compareComparable>(T a, T b) => a.compareTo(b); diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index e2566386..b94841d8 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -8,7 +8,7 @@ environment: sdk: '>=2.10.0-78 <2.11.0' dev_dependencies: - pedantic: ^1.0.0 + pedantic: ^1.9.0 test: ^1.0.0 dependency_overrides: diff --git a/pkgs/collection/test/algorithms_test.dart b/pkgs/collection/test/algorithms_test.dart index 7ab096fd..0c604635 100644 --- a/pkgs/collection/test/algorithms_test.dart +++ b/pkgs/collection/test/algorithms_test.dart @@ -6,6 +6,7 @@ import 'dart:math'; import 'package:collection/collection.dart'; +import 'package:collection/src/algorithms.dart'; import 'package:test/test.dart'; void main() { @@ -154,58 +155,159 @@ void main() { expect(lowerBound(l2, C(5), compare: compareC), equals(1)); }); - test('insertionSortRandom', () { - var random = Random(); - for (var i = 0; i < 25; i++) { - var list = [ - for (var j = 0; j < i; j++) - random.nextInt(25) // Expect some equal elements. - ]; - insertionSort(list); - for (var j = 1; j < i; j++) { - expect(list[j - 1], lessThanOrEqualTo(list[j])); + void testSort(String name, + void Function(List elements, [int? start, int? end]) sort) { + test('${name}Random', () { + var random = Random(); + for (var i = 0; i < 250; i += 10) { + var list = [ + for (var j = 0; j < i; j++) + random.nextInt(25) // Expect some equal elements. + ]; + sort(list); + for (var j = 1; j < i; j++) { + expect(list[j - 1], lessThanOrEqualTo(list[j])); + } } - } - }); + }); - test('insertionSortSubRanges', () { - var l = [6, 5, 4, 3, 2, 1]; - insertionSort(l, start: 2, end: 4); - expect(l, equals([6, 5, 3, 4, 2, 1])); - insertionSort(l, start: 1, end: 1); - expect(l, equals([6, 5, 3, 4, 2, 1])); - insertionSort(l, start: 4, end: 6); - expect(l, equals([6, 5, 3, 4, 1, 2])); - insertionSort(l, start: 0, end: 2); - expect(l, equals([5, 6, 3, 4, 1, 2])); - insertionSort(l, start: 0, end: 6); - expect(l, equals([1, 2, 3, 4, 5, 6])); - }); + test('${name}SubRanges', () { + var l = [6, 5, 4, 3, 2, 1]; + sort(l, 2, 4); + expect(l, equals([6, 5, 3, 4, 2, 1])); + sort(l, 1, 1); + expect(l, equals([6, 5, 3, 4, 2, 1])); + sort(l, 4, 6); + expect(l, equals([6, 5, 3, 4, 1, 2])); + sort(l, 0, 2); + expect(l, equals([5, 6, 3, 4, 1, 2])); + sort(l, 0, 6); + expect(l, equals([1, 2, 3, 4, 5, 6])); + }); + + test('$name insertionSortSpecialCases', () { + var l = [6, 6, 6, 6, 6, 6]; + sort(l); + expect(l, equals([6, 6, 6, 6, 6, 6])); - test('insertionSortSpecialCases', () { - var l = [6, 6, 6, 6, 6, 6]; - insertionSort(l); - expect(l, equals([6, 6, 6, 6, 6, 6])); + l = [6, 6, 3, 3, 0, 0]; + sort(l); + expect(l, equals([0, 0, 3, 3, 6, 6])); + }); + } - l = [6, 6, 3, 3, 0, 0]; - insertionSort(l); - expect(l, equals([0, 0, 3, 3, 6, 6])); + int intId(int x) => x; + int intCompare(int a, int b) => a - b; + testSort('insertionSort', (list, [start, end]) { + insertionSortBy(list, intId, intCompare, start ?? 0, end ?? list.length); }); + testSort('mergeSort compare', (list, [start, end]) { + mergeSort(list, + start: start ?? 0, end: end ?? list.length, compare: intCompare); + }); + testSort('mergeSort comparable', (list, [start, end]) { + mergeSort(list, start: start ?? 0, end: end ?? list.length); + }); + testSort('mergeSortBy', (list, [start, end]) { + mergeSortBy(list, intId, intCompare, start ?? 0, end ?? list.length); + }); + testSort('quickSort', (list, [start, end]) { + quickSort(list, intCompare, start ?? 0, end ?? list.length); + }); + testSort('quickSortBy', (list, [start, end]) { + quickSortBy(list, intId, intCompare, start ?? 0, end ?? list.length); + }); + test('MergeSortSpecialCases', () { + for (var size in [511, 512, 513]) { + // All equal. + var list = List.generate(size, (i) => OC(0, i)); + mergeSort(list); + for (var i = 0; i < size; i++) { + expect(list[i].order, equals(i)); + } + // All but one equal, first. + list[0] = OC(1, 0); + for (var i = 1; i < size; i++) { + list[i] = OC(0, i); + } + mergeSort(list); + for (var i = 0; i < size - 1; i++) { + expect(list[i].order, equals(i + 1)); + } + expect(list[size - 1].order, equals(0)); - test('MergeSortRandom', () { - var random = Random(); - for (var i = 0; i < 250; i += 1) { - var list = [ - for (var j = 0; j < i; j++) - random.nextInt(i) // Expect some equal elements. - ]; + // All but one equal, last. + for (var i = 0; i < size - 1; i++) { + list[i] = OC(0, i); + } + list[size - 1] = OC(-1, size - 1); mergeSort(list); - for (var j = 1; j < i; j++) { - expect(list[j - 1], lessThanOrEqualTo(list[j])); + expect(list[0].order, equals(size - 1)); + for (var i = 1; i < size; i++) { + expect(list[i].order, equals(i - 1)); + } + + // Reversed. + for (var i = 0; i < size; i++) { + list[i] = OC(size - 1 - i, i); + } + mergeSort(list); + for (var i = 0; i < size; i++) { + expect(list[i].id, equals(i)); + expect(list[i].order, equals(size - 1 - i)); } } }); + void testSortBy( + String name, + void Function(List elements, K Function(T element) keyOf, + int Function(K a, K b) compare, + [int start, int end]) + sort) { + for (var n in [0, 1, 2, 10, 75, 250]) { + var name2 = name; + test('$name2: Same #$n', () { + var list = List.generate(n, (i) => OC(i, 0)); + // Should succeed. Bad implementations of, e.g., quicksort can diverge. + sort(list, ocOrder, compareInt); + }); + test('$name: Pre-sorted #$n', () { + var list = List.generate(n, (i) => OC(-i, i)); + var expected = list.toList(); + sort(list, ocOrder, compareInt); + // Elements have not moved. + expect(list, expected); + }); + test('$name: Reverse-sorted #$n', () { + var list = List.generate(n, (i) => OC(i, -i)); + sort(list, ocOrder, compareInt); + expectSorted(list, ocOrder, compareInt); + }); + test('$name: Random #$n', () { + var random = Random(); + var list = List.generate(n, (i) => OC(i, random.nextInt(n))); + sort(list, ocOrder, compareInt); + expectSorted(list, ocOrder, compareInt); + }); + test('$name: Sublist #$n', () { + var random = Random(); + var list = List.generate(n, (i) => OC(i, random.nextInt(n))); + var original = list.toList(); + var start = n ~/ 4; + var end = start * 3; + sort(list, ocOrder, compareInt, start, end); + expectSorted(list, ocOrder, compareInt, start, end); + expect(list.sublist(0, start), original.sublist(0, start)); + expect(list.sublist(end), original.sublist(end)); + }); + } + } + + testSortBy('insertionSort', insertionSortBy); + testSortBy('mergeSort', mergeSortBy); + testSortBy('quickSortBy', quickSortBy); + test('MergeSortPreservesOrder', () { var random = Random(); // Small case where only insertion call is called, @@ -251,48 +353,6 @@ void main() { } }); - test('MergeSortSpecialCases', () { - for (var size in [511, 512, 513]) { - // All equal. - var list = [for (var i = 0; i < size; i++) OC(0, i)]; - mergeSort(list); - for (var i = 0; i < size; i++) { - expect(list[i].order, equals(i)); - } - // All but one equal, first. - list[0] = OC(1, 0); - for (var i = 1; i < size; i++) { - list[i] = OC(0, i); - } - mergeSort(list); - for (var i = 0; i < size - 1; i++) { - expect(list[i].order, equals(i + 1)); - } - expect(list[size - 1].order, equals(0)); - - // All but one equal, last. - for (var i = 0; i < size - 1; i++) { - list[i] = OC(0, i); - } - list[size - 1] = OC(-1, size - 1); - mergeSort(list); - expect(list[0].order, equals(size - 1)); - for (var i = 1; i < size; i++) { - expect(list[i].order, equals(i - 1)); - } - - // Reversed. - for (var i = 0; i < size; i++) { - list[i] = OC(size - 1 - i, i); - } - mergeSort(list); - for (var i = 0; i < size; i++) { - expect(list[i].id, equals(i)); - expect(list[i].order, equals(size - 1 - i)); - } - } - }); - test('Reverse', () { var l = [6, 5, 4, 3, 2, 1]; reverse(l, 2, 4); @@ -314,13 +374,36 @@ class C { } int compareC(C one, C other) => one.id - other.id; +int cId(C c) => c.id; +/// Class naturally ordered by its first constructor argument. class OC implements Comparable { final int id; final int order; OC(this.id, this.order); + @override int compareTo(OC other) => id - other.id; + @override String toString() => 'OC[$id,$order]'; } + +int ocId(OC oc) => oc.id; +int ocOrder(OC oc) => oc.order; + +int compareInt(int a, int b) => a - b; + +/// Check that a list is sorted according to [compare] of [keyOf] of elements. +void expectSorted( + List list, K Function(T element) keyOf, int Function(K a, K b) compare, + [int start = 0, int? end]) { + end ??= list.length; + if (start == end) return; + var prev = keyOf(list[start]); + for (var i = start + 1; i < end; i++) { + var next = keyOf(list[i]); + expect(compare(prev, next), isNonPositive); + prev = next; + } +} diff --git a/pkgs/collection/test/extensions_test.dart b/pkgs/collection/test/extensions_test.dart new file mode 100644 index 00000000..3289757a --- /dev/null +++ b/pkgs/collection/test/extensions_test.dart @@ -0,0 +1,1659 @@ +// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import 'dart:math' show pow; + +import 'package:test/test.dart'; + +import 'package:collection/collection.dart'; + +void main() { + group('Iterable', () { + group('of any', () { + group('.whereNot', () { + test('empty', () { + expect(iterable([]).whereNot(unreachable), isEmpty); + }); + test('none', () { + expect(iterable([1, 3, 5]).whereNot((e) => e.isOdd), isEmpty); + }); + test('all', () { + expect(iterable([1, 3, 5]).whereNot((e) => e.isEven), + iterable([1, 3, 5])); + }); + test('some', () { + expect(iterable([1, 2, 3, 4]).whereNot((e) => e.isEven), + iterable([1, 3])); + }); + }); + group('.sorted', () { + test('empty', () { + expect(iterable([]).sorted(unreachable), []); + }); + test('singleton', () { + expect(iterable([1]).sorted(unreachable), [1]); + }); + test('multiple', () { + expect(iterable([5, 2, 4, 3, 1]).sorted(cmpInt), [1, 2, 3, 4, 5]); + }); + }); + group('.sortedBy', () { + test('empty', () { + expect(iterable([]).sortedBy(unreachable), []); + }); + test('singleton', () { + expect(iterable([1]).sortedBy(unreachable), [1]); + }); + test('multiple', () { + expect(iterable([3, 20, 100]).sortedBy(toString), [100, 20, 3]); + }); + }); + group('.sortedByCompare', () { + test('empty', () { + expect( + iterable([]).sortedByCompare(unreachable, unreachable), []); + }); + test('singleton', () { + expect(iterable([2]).sortedByCompare(unreachable, unreachable), + [2]); + }); + test('multiple', () { + expect( + iterable([30, 2, 100]) + .sortedByCompare(toString, cmpParseInverse), + [100, 30, 2]); + }); + }); + group('isSorted', () { + test('empty', () { + expect(iterable([]).isSorted(unreachable), true); + }); + test('single', () { + expect(iterable([1]).isSorted(unreachable), true); + }); + test('same', () { + expect(iterable([1, 1, 1, 1]).isSorted(cmpInt), true); + expect(iterable([1, 0, 1, 0]).isSorted(cmpMod(2)), true); + }); + test('multiple', () { + expect(iterable([1, 2, 3, 4]).isSorted(cmpInt), true); + expect(iterable([4, 3, 2, 1]).isSorted(cmpIntInverse), true); + expect(iterable([1, 2, 3, 0]).isSorted(cmpInt), false); + expect(iterable([4, 1, 2, 3]).isSorted(cmpInt), false); + expect(iterable([4, 3, 2, 1]).isSorted(cmpInt), false); + }); + }); + group('.isSortedBy', () { + test('empty', () { + expect(iterable([]).isSortedBy(unreachable), true); + }); + test('single', () { + expect(iterable([1]).isSortedBy(toString), true); + }); + test('same', () { + expect(iterable([1, 1, 1, 1]).isSortedBy(toString), true); + }); + test('multiple', () { + expect(iterable([1, 2, 3, 4]).isSortedBy(toString), true); + expect(iterable([4, 3, 2, 1]).isSortedBy(toString), false); + expect(iterable([1000, 200, 30, 4]).isSortedBy(toString), true); + expect(iterable([1, 2, 3, 0]).isSortedBy(toString), false); + expect(iterable([4, 1, 2, 3]).isSortedBy(toString), false); + expect(iterable([4, 3, 2, 1]).isSortedBy(toString), false); + }); + }); + group('.isSortedByCompare', () { + test('empty', () { + expect(iterable([]).isSortedByCompare(unreachable, unreachable), + true); + }); + test('single', () { + expect(iterable([1]).isSortedByCompare(toString, unreachable), true); + }); + test('same', () { + expect(iterable([1, 1, 1, 1]).isSortedByCompare(toString, cmpParse), + true); + }); + test('multiple', () { + expect(iterable([1, 2, 3, 4]).isSortedByCompare(toString, cmpParse), + true); + expect( + iterable([4, 3, 2, 1]) + .isSortedByCompare(toString, cmpParseInverse), + true); + expect( + iterable([1000, 200, 30, 4]) + .isSortedByCompare(toString, cmpString), + true); + expect(iterable([1, 2, 3, 0]).isSortedByCompare(toString, cmpParse), + false); + expect(iterable([4, 1, 2, 3]).isSortedByCompare(toString, cmpParse), + false); + expect(iterable([4, 3, 2, 1]).isSortedByCompare(toString, cmpParse), + false); + }); + }); + group('.forEachIndexed', () { + test('empty', () { + iterable([]).forEachIndexed(unreachable); + }); + test('single', () { + var log = []; + iterable(['a']).forEachIndexed((i, s) { + log..add(i)..add(s); + }); + expect(log, [0, 'a']); + }); + test('multiple', () { + var log = []; + iterable(['a', 'b', 'c']).forEachIndexed((i, s) { + log..add(i)..add(s); + }); + expect(log, [0, 'a', 1, 'b', 2, 'c']); + }); + }); + group('.forEachWhile', () { + test('empty', () { + iterable([]).forEachWhile(unreachable); + }); + test('single true', () { + var log = []; + iterable(['a']).forEachWhile((s) { + log.add(s); + return true; + }); + expect(log, ['a']); + }); + test('single false', () { + var log = []; + iterable(['a']).forEachWhile((s) { + log.add(s); + return false; + }); + expect(log, ['a']); + }); + test('multiple one', () { + var log = []; + iterable(['a', 'b', 'c']).forEachWhile((s) { + log.add(s); + return false; + }); + expect(log, ['a']); + }); + test('multiple all', () { + var log = []; + iterable(['a', 'b', 'c']).forEachWhile((s) { + log.add(s); + return true; + }); + expect(log, ['a', 'b', 'c']); + }); + test('multiple some', () { + var log = []; + iterable(['a', 'b', 'c']).forEachWhile((s) { + log.add(s); + return s != 'b'; + }); + expect(log, ['a', 'b']); + }); + }); + group('.forEachIndexedWhile', () { + test('empty', () { + iterable([]).forEachIndexedWhile(unreachable); + }); + test('single true', () { + var log = []; + iterable(['a']).forEachIndexedWhile((i, s) { + log..add(i)..add(s); + return true; + }); + expect(log, [0, 'a']); + }); + test('single false', () { + var log = []; + iterable(['a']).forEachIndexedWhile((i, s) { + log..add(i)..add(s); + return false; + }); + expect(log, [0, 'a']); + }); + test('multiple one', () { + var log = []; + iterable(['a', 'b', 'c']).forEachIndexedWhile((i, s) { + log..add(i)..add(s); + return false; + }); + expect(log, [0, 'a']); + }); + test('multiple all', () { + var log = []; + iterable(['a', 'b', 'c']).forEachIndexedWhile((i, s) { + log..add(i)..add(s); + return true; + }); + expect(log, [0, 'a', 1, 'b', 2, 'c']); + }); + test('multiple some', () { + var log = []; + iterable(['a', 'b', 'c']).forEachIndexedWhile((i, s) { + log..add(i)..add(s); + return s != 'b'; + }); + expect(log, [0, 'a', 1, 'b']); + }); + }); + group('.mapIndexed', () { + test('empty', () { + expect(iterable([]).mapIndexed(unreachable), isEmpty); + }); + test('multiple', () { + expect(iterable(['a', 'b']).mapIndexed((i, s) => [i, s]), [ + [0, 'a'], + [1, 'b'] + ]); + }); + }); + group('.whereIndexed', () { + test('empty', () { + expect(iterable([]).whereIndexed(unreachable), isEmpty); + }); + test('none', () { + var trace = []; + int log(int a, int b) { + trace..add(a)..add(b); + return b; + } + + expect( + iterable([1, 3, 5, 7]) + .whereIndexed((i, x) => log(i, x).isEven), + isEmpty); + expect(trace, [0, 1, 1, 3, 2, 5, 3, 7]); + }); + test('all', () { + expect(iterable([1, 3, 5, 7]).whereIndexed((i, x) => x.isOdd), + [1, 3, 5, 7]); + }); + test('some', () { + expect(iterable([1, 3, 5, 7]).whereIndexed((i, x) => i.isOdd), + [3, 7]); + }); + }); + group('.whereNotIndexed', () { + test('empty', () { + expect(iterable([]).whereNotIndexed(unreachable), isEmpty); + }); + test('none', () { + var trace = []; + int log(int a, int b) { + trace..add(a)..add(b); + return b; + } + + expect( + iterable([1, 3, 5, 7]) + .whereNotIndexed((i, x) => log(i, x).isOdd), + isEmpty); + expect(trace, [0, 1, 1, 3, 2, 5, 3, 7]); + }); + test('all', () { + expect( + iterable([1, 3, 5, 7]).whereNotIndexed((i, x) => x.isEven), + [1, 3, 5, 7]); + }); + test('some', () { + expect(iterable([1, 3, 5, 7]).whereNotIndexed((i, x) => i.isOdd), + [1, 5]); + }); + }); + group('.expandIndexed', () { + test('empty', () { + expect(iterable([]).expandIndexed(unreachable), isEmpty); + }); + test('empty result', () { + expect(iterable(['a', 'b']).expandIndexed((i, v) => []), isEmpty); + }); + test('larger result', () { + expect(iterable(['a', 'b']).expandIndexed((i, v) => ['$i', v]), + ['0', 'a', '1', 'b']); + }); + test('varying result', () { + expect( + iterable(['a', 'b']) + .expandIndexed((i, v) => i.isOdd ? ['$i', v] : []), + ['1', 'b']); + }); + }); + group('.reduceIndexed', () { + test('empty', () { + expect(() => iterable([]).reduceIndexed((i, a, b) => a), + throwsStateError); + }); + test('single', () { + expect(iterable([1]).reduceIndexed(unreachable), 1); + }); + test('multiple', () { + expect( + iterable([1, 4, 2]) + .reduceIndexed((i, p, v) => p + (pow(i + 1, v) as int)), + 1 + 16 + 9); + }); + }); + group('.foldIndexed', () { + test('empty', () { + expect(iterable([]).foldIndexed(0, unreachable), 0); + }); + test('single', () { + expect( + iterable([1]).foldIndexed('x', (i, a, b) => '$a:$i:$b'), 'x:0:1'); + }); + test('mulitple', () { + expect(iterable([1, 3, 9]).foldIndexed('x', (i, a, b) => '$a:$i:$b'), + 'x:0:1:1:3:2:9'); + }); + }); + group('.firstWhereOrNull', () { + test('empty', () { + expect(iterable([]).firstWhereOrNull(unreachable), null); + }); + test('none', () { + expect(iterable([1, 3, 7]).firstWhereOrNull(isEven), null); + }); + test('single', () { + expect(iterable([0, 1, 2]).firstWhereOrNull(isOdd), 1); + }); + test('first of multiple', () { + expect(iterable([0, 1, 3]).firstWhereOrNull(isOdd), 1); + }); + }); + group('.firstWhereIndexedOrNull', () { + test('empty', () { + expect(iterable([]).firstWhereIndexedOrNull(unreachable), null); + }); + test('none', () { + expect( + iterable([1, 3, 7]).firstWhereIndexedOrNull((i, x) => x.isEven), + null); + expect(iterable([1, 3, 7]).firstWhereIndexedOrNull((i, x) => i < 0), + null); + }); + test('single', () { + expect(iterable([0, 3, 6]).firstWhereIndexedOrNull((i, x) => x.isOdd), + 3); + expect( + iterable([0, 3, 6]).firstWhereIndexedOrNull((i, x) => i == 1), 3); + }); + test('first of multiple', () { + expect(iterable([0, 3, 7]).firstWhereIndexedOrNull((i, x) => x.isOdd), + 3); + expect( + iterable([0, 3, 7]).firstWhereIndexedOrNull((i, x) => i.isEven), + 0); + }); + }); + group('.firstOrNull', () { + test('empty', () { + expect(iterable([]).firstOrNull, null); + }); + test('single', () { + expect(iterable([1]).firstOrNull, 1); + }); + test('first of multiple', () { + expect(iterable([1, 3, 5]).firstOrNull, 1); + }); + }); + group('.lastWhereOrNull', () { + test('empty', () { + expect(iterable([]).lastWhereOrNull(unreachable), null); + }); + test('none', () { + expect(iterable([1, 3, 7]).lastWhereOrNull(isEven), null); + }); + test('single', () { + expect(iterable([0, 1, 2]).lastWhereOrNull(isOdd), 1); + }); + test('last of multiple', () { + expect(iterable([0, 1, 3]).lastWhereOrNull(isOdd), 3); + }); + }); + group('.lastWhereIndexedOrNull', () { + test('empty', () { + expect(iterable([]).lastWhereIndexedOrNull(unreachable), null); + }); + test('none', () { + expect(iterable([1, 3, 7]).lastWhereIndexedOrNull((i, x) => x.isEven), + null); + expect(iterable([1, 3, 7]).lastWhereIndexedOrNull((i, x) => i < 0), + null); + }); + test('single', () { + expect( + iterable([0, 3, 6]).lastWhereIndexedOrNull((i, x) => x.isOdd), 3); + expect( + iterable([0, 3, 6]).lastWhereIndexedOrNull((i, x) => i == 1), 3); + }); + test('last of multiple', () { + expect( + iterable([0, 3, 7]).lastWhereIndexedOrNull((i, x) => x.isOdd), 7); + expect(iterable([0, 3, 7]).lastWhereIndexedOrNull((i, x) => i.isEven), + 7); + }); + }); + group('.lastOrNull', () { + test('empty', () { + expect(iterable([]).lastOrNull, null); + }); + test('single', () { + expect(iterable([1]).lastOrNull, 1); + }); + test('last of multiple', () { + expect(iterable([1, 3, 5]).lastOrNull, 5); + }); + }); + group('.singleWhereOrNull', () { + test('empty', () { + expect(iterable([]).singleWhereOrNull(unreachable), null); + }); + test('none', () { + expect(iterable([1, 3, 7]).singleWhereOrNull(isEven), null); + }); + test('single', () { + expect(iterable([0, 1, 2]).singleWhereOrNull(isOdd), 1); + }); + test('multiple', () { + expect(iterable([0, 1, 3]).singleWhereOrNull(isOdd), null); + }); + }); + group('.singleWhereIndexedOrNull', () { + test('empty', () { + expect(iterable([]).singleWhereIndexedOrNull(unreachable), null); + }); + test('none', () { + expect( + iterable([1, 3, 7]).singleWhereIndexedOrNull((i, x) => x.isEven), + null); + expect(iterable([1, 3, 7]).singleWhereIndexedOrNull((i, x) => i < 0), + null); + }); + test('single', () { + expect( + iterable([0, 3, 6]).singleWhereIndexedOrNull((i, x) => x.isOdd), + 3); + expect(iterable([0, 3, 6]).singleWhereIndexedOrNull((i, x) => i == 1), + 3); + }); + test('multiple', () { + expect( + iterable([0, 3, 7]).singleWhereIndexedOrNull((i, x) => x.isOdd), + null); + expect( + iterable([0, 3, 7]).singleWhereIndexedOrNull((i, x) => i.isEven), + null); + }); + }); + group('.singleOrNull', () { + test('empty', () { + expect(iterable([]).singleOrNull, null); + }); + test('single', () { + expect(iterable([1]).singleOrNull, 1); + }); + test('multiple', () { + expect(iterable([1, 3, 5]).singleOrNull, null); + }); + }); + group('.groupFoldBy', () { + test('empty', () { + expect(iterable([]).groupFoldBy(unreachable, unreachable), {}); + }); + test('single', () { + expect(iterable([1]).groupFoldBy(toString, (p, v) => [p, v]), { + '1': [null, 1] + }); + }); + test('multiple', () { + expect( + iterable([1, 2, 3, 4, 5]).groupFoldBy( + (x) => x.isEven, (p, v) => p == null ? '$v' : '$p:$v'), + {true: '2:4', false: '1:3:5'}); + }); + }); + group('.groupSetsBy', () { + test('empty', () { + expect(iterable([]).groupSetsBy(unreachable), {}); + }); + test('multiple same', () { + expect(iterable([1, 1]).groupSetsBy(toString), { + '1': {1} + }); + }); + test('multiple', () { + expect(iterable([1, 2, 3, 4, 5, 1]).groupSetsBy((x) => x % 3), { + 1: {1, 4}, + 2: {2, 5}, + 0: {3} + }); + }); + }); + group('.groupListsBy', () { + test('empty', () { + expect(iterable([]).groupListsBy(unreachable), {}); + }); + test('multiple saame', () { + expect(iterable([1, 1]).groupListsBy(toString), { + '1': [1, 1] + }); + }); + test('multiple', () { + expect(iterable([1, 2, 3, 4, 5, 1]).groupListsBy((x) => x % 3), { + 1: [1, 4, 1], + 2: [2, 5], + 0: [3] + }); + }); + }); + group('.splitBefore', () { + test('empty', () { + expect(iterable([]).splitBefore(unreachable), []); + }); + test('single', () { + expect(iterable([1]).splitBefore(unreachable), [ + [1] + ]); + }); + test('no split', () { + var trace = []; + bool log(x) { + trace.add(x); + return false; + } + + expect(iterable([1, 2, 3]).splitBefore(log), [ + [1, 2, 3] + ]); + expect(trace, [2, 3]); + }); + test('all splits', () { + expect(iterable([1, 2, 3]).splitBefore((x) => true), [ + [1], + [2], + [3] + ]); + }); + test('some splits', () { + expect(iterable([1, 2, 3]).splitBefore((x) => x.isEven), [ + [1], + [2, 3] + ]); + }); + }); + group('.splitBeforeIndexed', () { + test('empty', () { + expect(iterable([]).splitBeforeIndexed(unreachable), []); + }); + test('single', () { + expect(iterable([1]).splitBeforeIndexed(unreachable), [ + [1] + ]); + }); + test('no split', () { + var trace = []; + bool log(i, x) { + trace..add('$i')..add(x); + return false; + } + + expect(iterable([1, 2, 3]).splitBeforeIndexed(log), [ + [1, 2, 3] + ]); + expect(trace, ['1', 2, '2', 3]); + }); + test('all splits', () { + expect(iterable([1, 2, 3]).splitBeforeIndexed((i, x) => true), [ + [1], + [2], + [3] + ]); + }); + test('some splits', () { + expect(iterable([1, 2, 3]).splitBeforeIndexed((i, x) => x.isEven), [ + [1], + [2, 3] + ]); + expect(iterable([1, 2, 3]).splitBeforeIndexed((i, x) => i.isEven), [ + [1, 2], + [3] + ]); + }); + }); + group('.splitAfter', () { + test('empty', () { + expect(iterable([]).splitAfter(unreachable), []); + }); + test('single', () { + expect(iterable([1]).splitAfter((x) => false), [ + [1] + ]); + expect(iterable([1]).splitAfter((x) => true), [ + [1] + ]); + }); + test('no split', () { + var trace = []; + bool log(x) { + trace.add(x); + return false; + } + + expect(iterable([1, 2, 3]).splitAfter(log), [ + [1, 2, 3] + ]); + expect(trace, [1, 2, 3]); + }); + test('all splits', () { + expect(iterable([1, 2, 3]).splitAfter((x) => true), [ + [1], + [2], + [3] + ]); + }); + test('some splits', () { + expect(iterable([1, 2, 3]).splitAfter((x) => x.isEven), [ + [1, 2], + [3] + ]); + }); + }); + group('.splitAfterIndexed', () { + test('empty', () { + expect(iterable([]).splitAfterIndexed(unreachable), []); + }); + test('single', () { + expect(iterable([1]).splitAfterIndexed((i, x) => true), [ + [1] + ]); + expect(iterable([1]).splitAfterIndexed((i, x) => false), [ + [1] + ]); + }); + test('no split', () { + var trace = []; + bool log(i, x) { + trace..add('$i')..add(x); + return false; + } + + expect(iterable([1, 2, 3]).splitAfterIndexed(log), [ + [1, 2, 3] + ]); + expect(trace, ['0', 1, '1', 2, '2', 3]); + }); + test('all splits', () { + expect(iterable([1, 2, 3]).splitAfterIndexed((i, x) => true), [ + [1], + [2], + [3] + ]); + }); + test('some splits', () { + expect(iterable([1, 2, 3]).splitAfterIndexed((i, x) => x.isEven), [ + [1, 2], + [3] + ]); + expect(iterable([1, 2, 3]).splitAfterIndexed((i, x) => i.isEven), [ + [1], + [2, 3] + ]); + }); + }); + group('.splitBetween', () { + test('empty', () { + expect(iterable([]).splitBetween(unreachable), []); + }); + test('single', () { + expect(iterable([1]).splitBetween(unreachable), [ + [1] + ]); + }); + test('no split', () { + var trace = []; + bool log(x, y) { + trace.add([x, y]); + return false; + } + + expect(iterable([1, 2, 3]).splitBetween(log), [ + [1, 2, 3] + ]); + expect(trace, [ + [1, 2], + [2, 3] + ]); + }); + test('all splits', () { + expect(iterable([1, 2, 3]).splitBetween((x, y) => true), [ + [1], + [2], + [3] + ]); + }); + test('some splits', () { + expect(iterable([1, 2, 4]).splitBetween((x, y) => (x ^ y).isEven), [ + [1, 2], + [4] + ]); + }); + }); + group('.splitBetweenIndexed', () { + test('empty', () { + expect(iterable([]).splitBetweenIndexed(unreachable), []); + }); + test('single', () { + expect(iterable([1]).splitBetweenIndexed(unreachable), [ + [1] + ]); + }); + test('no split', () { + var trace = []; + bool log(i, x, y) { + trace.add([i, x, y]); + return false; + } + + expect(iterable([1, 2, 3]).splitBetweenIndexed(log), [ + [1, 2, 3] + ]); + expect(trace, [ + [1, 1, 2], + [2, 2, 3] + ]); + }); + test('all splits', () { + expect(iterable([1, 2, 3]).splitBetweenIndexed((i, x, y) => true), [ + [1], + [2], + [3] + ]); + }); + test('some splits', () { + expect( + iterable([1, 2, 4]) + .splitBetweenIndexed((i, x, y) => (x ^ y).isEven), + [ + [1, 2], + [4] + ]); + expect( + iterable([1, 2, 4]) + .splitBetweenIndexed((i, x, y) => (i ^ y).isEven), + [ + [1, 2], + [4] + ]); + }); + }); + group('none', () { + test('empty', () { + expect(iterable([]).none(unreachable), true); + }); + test('single', () { + expect(iterable([1]).none(isEven), true); + expect(iterable([1]).none(isOdd), false); + }); + test('multiple', () { + expect(iterable([1, 3, 5, 7, 9, 11]).none(isEven), true); + expect(iterable([1, 3, 5, 7, 9, 10]).none(isEven), false); + expect(iterable([0, 3, 5, 7, 9, 11]).none(isEven), false); + expect(iterable([0, 2, 4, 6, 8, 10]).none(isEven), false); + }); + }); + }); + group('of nullable', () { + group('.whereNotNull', () { + test('empty', () { + expect(iterable([]).whereNotNull(), isEmpty); + }); + test('single', () { + expect(iterable([null]).whereNotNull(), isEmpty); + expect(iterable([1]).whereNotNull(), [1]); + }); + test('multiple', () { + expect(iterable([1, 3, 5]).whereNotNull(), [1, 3, 5]); + expect(iterable([null, null, null]).whereNotNull(), isEmpty); + expect( + iterable([1, null, 3, null, 5]).whereNotNull(), [1, 3, 5]); + }); + }); + }); + group('of number', () { + group('.sum', () { + test('empty', () { + expect(iterable([]).sum, same(0)); + expect(iterable([]).sum, same(0.0)); + expect(iterable([]).sum, same(0)); + }); + test('single', () { + expect(iterable([1]).sum, same(1)); + expect(iterable([1.2]).sum, same(1.2)); + expect(iterable([1]).sum, same(1)); + expect(iterable([1.2]).sum, same(1.2)); + }); + test('multiple', () { + expect(iterable([1, 2, 4]).sum, 7); + expect(iterable([1.2, 3.5]).sum, 4.7); + expect(iterable([1, 3, 5]).sum, same(9)); + expect(iterable([1.2, 3.5]).sum, 4.7); + expect(iterable([1.2, 2, 3.5]).sum, 6.7); + }); + }); + group('average', () { + test('empty', () { + expect(() => iterable([]).average, throwsStateError); + expect(() => iterable([]).average, throwsStateError); + expect(() => iterable([]).average, throwsStateError); + }); + test('single', () { + expect(iterable([4]).average, same(4.0)); + expect(iterable([3.5]).average, 3.5); + expect(iterable([4]).average, same(4.0)); + expect(iterable([3.5]).average, 3.5); + }); + test('multiple', () { + expect(iterable([1, 3, 5]).average, same(3.0)); + expect(iterable([1, 3, 5, 9]).average, 4.5); + expect(iterable([1.0, 3.0, 5.0, 9.0]).average, 4.5); + expect(iterable([1, 3, 5, 9]).average, 4.5); + }); + }); + }); + group('of iterable', () { + group('.flattened', () { + var empty = iterable([]); + test('empty', () { + expect(iterable(>[]).flattened, []); + }); + test('multiple empty', () { + expect(iterable([empty, empty, empty]).flattened, []); + }); + test('single value', () { + expect( + iterable([ + iterable([1]) + ]).flattened, + [1]); + }); + test('multiple', () { + expect( + iterable([ + iterable([1, 2]), + empty, + iterable([3, 4]) + ]).flattened, + [1, 2, 3, 4]); + }); + }); + }); + group('of comparable', () { + group('.min', () { + test('empty', () { + expect(() => iterable([]).min, throwsStateError); + }); + test('single', () { + expect(iterable(['a']).min, 'a'); + }); + test('multiple', () { + expect(iterable(['c', 'a', 'b']).min, 'a'); + }); + }); + group('.minOrNull', () { + test('empty', () { + expect(iterable([]).minOrNull, null); + }); + test('single', () { + expect(iterable(['a']).minOrNull, 'a'); + }); + test('multiple', () { + expect(iterable(['c', 'a', 'b']).minOrNull, 'a'); + }); + }); + group('.max', () { + test('empty', () { + expect(() => iterable([]).max, throwsStateError); + }); + test('single', () { + expect(iterable(['a']).max, 'a'); + }); + test('multiple', () { + expect(iterable(['b', 'c', 'a']).max, 'c'); + }); + }); + group('.maxOrNull', () { + test('empty', () { + expect(iterable([]).maxOrNull, null); + }); + test('single', () { + expect(iterable(['a']).maxOrNull, 'a'); + }); + test('multiple', () { + expect(iterable(['b', 'c', 'a']).maxOrNull, 'c'); + }); + }); + }); + group('.sorted', () { + test('empty', () { + expect(iterable([]).sorted(unreachable), []); + expect(iterable([]).sorted(), []); + }); + test('singleton', () { + expect(iterable(['a']).sorted(unreachable), ['a']); + expect(iterable(['a']).sorted(), ['a']); + }); + test('multiple', () { + expect(iterable(['5', '2', '4', '3', '1']).sorted(cmpParse), + ['1', '2', '3', '4', '5']); + expect( + iterable(['5', '2', '4', '3', '1']).sorted(cmpParseInverse), + ['5', '4', '3', '2', '1']); + expect(iterable(['5', '2', '4', '3', '1']).sorted(), + ['1', '2', '3', '4', '5']); + // Large enough to trigger quicksort. + var i256 = Iterable.generate(256, (i) => i ^ 0x55); + var sorted256 = [...i256]..sort(); + expect(i256.sorted(cmpInt), sorted256); + }); + }); + group('.isSorted', () { + test('empty', () { + expect(iterable([]).isSorted(unreachable), true); + expect(iterable([]).isSorted(), true); + }); + test('single', () { + expect(iterable(['1']).isSorted(unreachable), true); + expect(iterable(['1']).isSorted(), true); + }); + test('same', () { + expect(iterable(['1', '1', '1', '1']).isSorted(cmpParse), true); + expect(iterable(['1', '2', '0', '3']).isSorted(cmpStringLength), true); + expect(iterable(['1', '1', '1', '1']).isSorted(), true); + }); + test('multiple', () { + expect(iterable(['1', '2', '3', '4']).isSorted(cmpParse), true); + expect(iterable(['1', '2', '3', '4']).isSorted(), true); + expect(iterable(['4', '3', '2', '1']).isSorted(cmpParseInverse), true); + expect(iterable(['1', '2', '3', '0']).isSorted(cmpParse), false); + expect(iterable(['1', '2', '3', '0']).isSorted(), false); + expect(iterable(['4', '1', '2', '3']).isSorted(cmpParse), false); + expect(iterable(['4', '1', '2', '3']).isSorted(), false); + expect(iterable(['4', '3', '2', '1']).isSorted(cmpParse), false); + expect(iterable(['4', '3', '2', '1']).isSorted(), false); + }); + }); + }); + + group('Comparator', () { + test('.inverse', () { + var cmpStringInv = cmpString.inverse; + expect(cmpString('a', 'b'), isNegative); + expect(cmpStringInv('a', 'b'), isPositive); + expect(cmpString('aa', 'a'), isPositive); + expect(cmpStringInv('aa', 'a'), isNegative); + expect(cmpString('a', 'a'), isZero); + expect(cmpStringInv('a', 'a'), isZero); + }); + test('.compareBy', () { + var cmpByLength = cmpInt.compareBy((String s) => s.length); + expect(cmpByLength('a', 'b'), 0); + expect(cmpByLength('aa', 'b'), isPositive); + expect(cmpByLength('b', 'aa'), isNegative); + var cmpByInverseLength = cmpIntInverse.compareBy((String s) => s.length); + expect(cmpByInverseLength('a', 'b'), 0); + expect(cmpByInverseLength('aa', 'b'), isNegative); + expect(cmpByInverseLength('b', 'aa'), isPositive); + }); + + test('.then', () { + var cmpLengthFirst = cmpStringLength.then(cmpString); + var strings = ['a', 'aa', 'ba', 'ab', 'b', 'aaa']; + strings.sort(cmpString); + expect(strings, ['a', 'aa', 'aaa', 'ab', 'b', 'ba']); + strings.sort(cmpLengthFirst); + expect(strings, ['a', 'b', 'aa', 'ab', 'ba', 'aaa']); + + int cmpFirstLetter(String s1, String s2) => + s1.runes.first - s2.runes.first; + var cmpLetterLength = cmpFirstLetter.then(cmpStringLength); + var cmpLengthLetter = cmpStringLength.then(cmpFirstLetter); + strings = ['a', 'ab', 'b', 'ba', 'aaa']; + strings.sort(cmpLetterLength); + expect(strings, ['a', 'ab', 'aaa', 'b', 'ba']); + strings.sort(cmpLengthLetter); + expect(strings, ['a', 'b', 'ab', 'ba', 'aaa']); + }); + }); + + group('List', () { + group('of any', () { + group('.binarySearch', () { + test('empty', () { + expect([].binarySearch(1, unreachable), -1); + }); + test('single', () { + expect([0].binarySearch(1, cmpInt), -1); + expect([1].binarySearch(1, cmpInt), 0); + expect([2].binarySearch(1, cmpInt), -1); + }); + test('multiple', () { + expect([1, 2, 3, 4, 5, 6].binarySearch(3, cmpInt), 2); + expect([6, 5, 4, 3, 2, 1].binarySearch(3, cmpIntInverse), 3); + }); + }); + group('.binarySearchByCompare', () { + test('empty', () { + expect([].binarySearchByCompare(1, toString, cmpParse), -1); + }); + test('single', () { + expect([0].binarySearchByCompare(1, toString, cmpParse), -1); + expect([1].binarySearchByCompare(1, toString, cmpParse), 0); + expect([2].binarySearchByCompare(1, toString, cmpParse), -1); + }); + test('multiple', () { + expect( + [1, 2, 3, 4, 5, 6].binarySearchByCompare(3, toString, cmpParse), + 2); + expect( + [6, 5, 4, 3, 2, 1] + .binarySearchByCompare(3, toString, cmpParseInverse), + 3); + }); + }); + group('.binarySearchBy', () { + test('empty', () { + expect([].binarySearchBy(1, toString), -1); + }); + test('single', () { + expect([0].binarySearchBy(1, toString), -1); + expect([1].binarySearchBy(1, toString), 0); + expect([2].binarySearchBy(1, toString), -1); + }); + test('multiple', () { + expect([1, 2, 3, 4, 5, 6].binarySearchBy(3, toString), 2); + }); + }); + + group('.lowerBound', () { + test('empty', () { + expect([].lowerBound(1, unreachable), 0); + }); + test('single', () { + expect([0].lowerBound(1, cmpInt), 1); + expect([1].lowerBound(1, cmpInt), 0); + expect([2].lowerBound(1, cmpInt), 0); + }); + test('multiple', () { + expect([1, 2, 3, 4, 5, 6].lowerBound(3, cmpInt), 2); + expect([6, 5, 4, 3, 2, 1].lowerBound(3, cmpIntInverse), 3); + expect([1, 2, 4, 5, 6].lowerBound(3, cmpInt), 2); + expect([6, 5, 4, 2, 1].lowerBound(3, cmpIntInverse), 3); + }); + }); + group('.lowerBoundByCompare', () { + test('empty', () { + expect([].lowerBoundByCompare(1, toString, cmpParse), 0); + }); + test('single', () { + expect([0].lowerBoundByCompare(1, toString, cmpParse), 1); + expect([1].lowerBoundByCompare(1, toString, cmpParse), 0); + expect([2].lowerBoundByCompare(1, toString, cmpParse), 0); + }); + test('multiple', () { + expect( + [1, 2, 3, 4, 5, 6].lowerBoundByCompare(3, toString, cmpParse), 2); + expect( + [6, 5, 4, 3, 2, 1] + .lowerBoundByCompare(3, toString, cmpParseInverse), + 3); + expect([1, 2, 4, 5, 6].lowerBoundByCompare(3, toString, cmpParse), 2); + expect( + [6, 5, 4, 2, 1].lowerBoundByCompare(3, toString, cmpParseInverse), + 3); + }); + }); + group('.lowerBoundBy', () { + test('empty', () { + expect([].lowerBoundBy(1, toString), 0); + }); + test('single', () { + expect([0].lowerBoundBy(1, toString), 1); + expect([1].lowerBoundBy(1, toString), 0); + expect([2].lowerBoundBy(1, toString), 0); + }); + test('multiple', () { + expect([1, 2, 3, 4, 5, 6].lowerBoundBy(3, toString), 2); + expect([1, 2, 4, 5, 6].lowerBoundBy(3, toString), 2); + }); + }); + group('sortRange', () { + test('errors', () { + expect(() => [1].sortRange(-1, 1, cmpInt), throwsArgumentError); + expect(() => [1].sortRange(0, 2, cmpInt), throwsArgumentError); + expect(() => [1].sortRange(1, 0, cmpInt), throwsArgumentError); + }); + test('empty range', () { + [].sortRange(0, 0, unreachable); + var list = [3, 2, 1]; + list.sortRange(0, 0, unreachable); + list.sortRange(3, 3, unreachable); + expect(list, [3, 2, 1]); + }); + test('single', () { + [1].sortRange(0, 1, unreachable); + var list = [3, 2, 1]; + list.sortRange(0, 1, unreachable); + list.sortRange(1, 2, unreachable); + list.sortRange(2, 3, unreachable); + }); + test('multiple', () { + var list = [9, 8, 7, 6, 5, 4, 3, 2, 1]; + list.sortRange(2, 5, cmpInt); + expect(list, [9, 8, 5, 6, 7, 4, 3, 2, 1]); + list.sortRange(4, 8, cmpInt); + expect(list, [9, 8, 5, 6, 2, 3, 4, 7, 1]); + list.sortRange(3, 6, cmpIntInverse); + expect(list, [9, 8, 5, 6, 3, 2, 4, 7, 1]); + }); + }); + group('.sortBy', () { + test('empty', () { + expect([]..sortBy(unreachable), []); + }); + test('singleton', () { + expect([1]..sortBy(unreachable), [1]); + }); + test('multiple', () { + expect([3, 20, 100]..sortBy(toString), [100, 20, 3]); + }); + group('range', () { + test('errors', () { + expect(() => [1].sortBy(toString, -1, 1), throwsArgumentError); + expect(() => [1].sortBy(toString, 0, 2), throwsArgumentError); + expect(() => [1].sortBy(toString, 1, 0), throwsArgumentError); + }); + test('empty', () { + expect([5, 7, 4, 2, 3]..sortBy(unreachable, 2, 2), [5, 7, 4, 2, 3]); + }); + test('singleton', () { + expect([5, 7, 4, 2, 3]..sortBy(unreachable, 2, 3), [5, 7, 4, 2, 3]); + }); + test('multiple', () { + expect( + [5, 7, 40, 2, 3]..sortBy((a) => '$a', 1, 4), [5, 2, 40, 7, 3]); + }); + }); + }); + group('.sortByCompare', () { + test('empty', () { + expect([]..sortByCompare(unreachable, unreachable), []); + }); + test('singleton', () { + expect([2]..sortByCompare(unreachable, unreachable), [2]); + }); + test('multiple', () { + expect([30, 2, 100]..sortByCompare(toString, cmpParseInverse), + [100, 30, 2]); + }); + group('range', () { + test('errors', () { + expect(() => [1].sortByCompare(toString, cmpParse, -1, 1), + throwsArgumentError); + expect(() => [1].sortByCompare(toString, cmpParse, 0, 2), + throwsArgumentError); + expect(() => [1].sortByCompare(toString, cmpParse, 1, 0), + throwsArgumentError); + }); + test('empty', () { + expect( + [3, 5, 7, 3, 1]..sortByCompare(unreachable, unreachable, 2, 2), + [3, 5, 7, 3, 1]); + }); + test('singleton', () { + expect( + [3, 5, 7, 3, 1]..sortByCompare(unreachable, unreachable, 2, 3), + [3, 5, 7, 3, 1]); + }); + test('multiple', () { + expect( + [3, 5, 7, 30, 1] + ..sortByCompare(toString, cmpParseInverse, 1, 4), + [3, 30, 7, 5, 1]); + }); + }); + }); + group('.shuffleRange', () { + test('errors', () { + expect(() => [1].shuffleRange(-1, 1), throwsArgumentError); + expect(() => [1].shuffleRange(0, 2), throwsArgumentError); + expect(() => [1].shuffleRange(1, 0), throwsArgumentError); + }); + test('empty range', () { + expect([]..shuffleRange(0, 0), []); + expect([1, 2, 3, 4]..shuffleRange(0, 0), [1, 2, 3, 4]); + expect([1, 2, 3, 4]..shuffleRange(4, 4), [1, 2, 3, 4]); + }); + test('singleton range', () { + expect([1, 2, 3, 4]..shuffleRange(0, 1), [1, 2, 3, 4]); + expect([1, 2, 3, 4]..shuffleRange(3, 4), [1, 2, 3, 4]); + }); + test('multiple', () { + var list = [1, 2, 3, 4, 5]; + do { + list.shuffleRange(0, 3); + expect(list.getRange(3, 5), [4, 5]); + expect(list.getRange(0, 3), unorderedEquals([1, 2, 3])); + } while (ListEquality().equals(list.sublist(0, 3), [1, 2, 3])); + // Won't terminate if shuffle *never* moves a value. + }); + }); + group('.reverseRange', () { + test('errors', () { + expect(() => [1].reverseRange(-1, 1), throwsArgumentError); + expect(() => [1].reverseRange(0, 2), throwsArgumentError); + expect(() => [1].reverseRange(1, 0), throwsArgumentError); + }); + test('empty range', () { + expect([]..reverseRange(0, 0), []); + expect([1, 2, 3, 4]..reverseRange(0, 0), [1, 2, 3, 4]); + expect([1, 2, 3, 4]..reverseRange(4, 4), [1, 2, 3, 4]); + }); + test('singleton range', () { + expect([1, 2, 3, 4]..reverseRange(0, 1), [1, 2, 3, 4]); + expect([1, 2, 3, 4]..reverseRange(3, 4), [1, 2, 3, 4]); + }); + test('multiple', () { + var list = [1, 2, 3, 4, 5]; + list.reverseRange(0, 3); + expect(list, [3, 2, 1, 4, 5]); + list.reverseRange(3, 5); + expect(list, [3, 2, 1, 5, 4]); + list.reverseRange(0, 5); + expect(list, [4, 5, 1, 2, 3]); + }); + }); + group('.swap', () { + test('errors', () { + expect(() => [1].swap(0, 1), throwsArgumentError); + expect(() => [1].swap(1, 1), throwsArgumentError); + expect(() => [1].swap(1, 0), throwsArgumentError); + expect(() => [1].swap(-1, 0), throwsArgumentError); + }); + test('self swap', () { + expect([1]..swap(0, 0), [1]); + expect([1, 2, 3]..swap(1, 1), [1, 2, 3]); + }); + test('actual swap', () { + expect([1, 2, 3]..swap(0, 2), [3, 2, 1]); + expect([1, 2, 3]..swap(2, 0), [3, 2, 1]); + expect([1, 2, 3]..swap(2, 1), [1, 3, 2]); + expect([1, 2, 3]..swap(1, 2), [1, 3, 2]); + expect([1, 2, 3]..swap(0, 1), [2, 1, 3]); + expect([1, 2, 3]..swap(1, 0), [2, 1, 3]); + }); + }); + group('.slice', () { + test('errors', () { + expect(() => [1].slice(-1, 1), throwsArgumentError); + expect(() => [1].slice(0, 2), throwsArgumentError); + expect(() => [1].slice(1, 0), throwsArgumentError); + var l = [1]; + var slice = l.slice(0, 1); + l.removeLast(); + expect(() => slice.first, throwsConcurrentModificationError); + }); + test('empty', () { + expect([].slice(0, 0), isEmpty); + }); + test('modify', () { + var list = [1, 2, 3, 4, 5, 6, 7, 8, 9]; + var slice = list.slice(2, 6); + expect(slice, [3, 4, 5, 6]); + slice.sort(cmpIntInverse); + expect(slice, [6, 5, 4, 3]); + expect(list, [1, 2, 6, 5, 4, 3, 7, 8, 9]); + }); + }); + group('equals', () { + test('empty', () { + expect([].equals([]), true); + }); + test('non-empty', () { + expect([1, 2.5, 'a'].equals([1.0, 2.5, 'a']), true); + expect([1, 2.5, 'a'].equals([1.0, 2.5, 'b']), false); + expect( + [ + [1] + ].equals([ + [1] + ]), + false); + expect( + [ + [1] + ].equals([ + [1] + ], const ListEquality()), + true); + }); + }); + group('.forEachIndexed', () { + test('empty', () { + [].forEachIndexed(unreachable); + }); + test('single', () { + var log = []; + ['a'].forEachIndexed((i, s) { + log..add(i)..add(s); + }); + expect(log, [0, 'a']); + }); + test('multiple', () { + var log = []; + ['a', 'b', 'c'].forEachIndexed((i, s) { + log..add(i)..add(s); + }); + expect(log, [0, 'a', 1, 'b', 2, 'c']); + }); + }); + group('.forEachWhile', () { + test('empty', () { + [].forEachWhile(unreachable); + }); + test('single true', () { + var log = []; + ['a'].forEachWhile((s) { + log.add(s); + return true; + }); + expect(log, ['a']); + }); + test('single false', () { + var log = []; + ['a'].forEachWhile((s) { + log.add(s); + return false; + }); + expect(log, ['a']); + }); + test('multiple one', () { + var log = []; + ['a', 'b', 'c'].forEachWhile((s) { + log.add(s); + return false; + }); + expect(log, ['a']); + }); + test('multiple all', () { + var log = []; + ['a', 'b', 'c'].forEachWhile((s) { + log.add(s); + return true; + }); + expect(log, ['a', 'b', 'c']); + }); + test('multiple some', () { + var log = []; + ['a', 'b', 'c'].forEachWhile((s) { + log.add(s); + return s != 'b'; + }); + expect(log, ['a', 'b']); + }); + }); + group('.forEachIndexedWhile', () { + test('empty', () { + [].forEachIndexedWhile(unreachable); + }); + test('single true', () { + var log = []; + ['a'].forEachIndexedWhile((i, s) { + log..add(i)..add(s); + return true; + }); + expect(log, [0, 'a']); + }); + test('single false', () { + var log = []; + ['a'].forEachIndexedWhile((i, s) { + log..add(i)..add(s); + return false; + }); + expect(log, [0, 'a']); + }); + test('multiple one', () { + var log = []; + ['a', 'b', 'c'].forEachIndexedWhile((i, s) { + log..add(i)..add(s); + return false; + }); + expect(log, [0, 'a']); + }); + test('multiple all', () { + var log = []; + ['a', 'b', 'c'].forEachIndexedWhile((i, s) { + log..add(i)..add(s); + return true; + }); + expect(log, [0, 'a', 1, 'b', 2, 'c']); + }); + test('multiple some', () { + var log = []; + ['a', 'b', 'c'].forEachIndexedWhile((i, s) { + log..add(i)..add(s); + return s != 'b'; + }); + expect(log, [0, 'a', 1, 'b']); + }); + }); + group('.mapIndexed', () { + test('empty', () { + expect([].mapIndexed(unreachable), isEmpty); + }); + test('multiple', () { + expect(['a', 'b'].mapIndexed((i, s) => [i, s]), [ + [0, 'a'], + [1, 'b'] + ]); + }); + }); + group('.whereIndexed', () { + test('empty', () { + expect([].whereIndexed(unreachable), isEmpty); + }); + test('none', () { + var trace = []; + int log(int a, int b) { + trace..add(a)..add(b); + return b; + } + + expect([1, 3, 5, 7].whereIndexed((i, x) => log(i, x).isEven), + isEmpty); + expect(trace, [0, 1, 1, 3, 2, 5, 3, 7]); + }); + test('all', () { + expect( + [1, 3, 5, 7].whereIndexed((i, x) => x.isOdd), [1, 3, 5, 7]); + }); + test('some', () { + expect([1, 3, 5, 7].whereIndexed((i, x) => i.isOdd), [3, 7]); + }); + }); + group('.whereNotIndexed', () { + test('empty', () { + expect([].whereNotIndexed(unreachable), isEmpty); + }); + test('none', () { + var trace = []; + int log(int a, int b) { + trace..add(a)..add(b); + return b; + } + + expect([1, 3, 5, 7].whereNotIndexed((i, x) => log(i, x).isOdd), + isEmpty); + expect(trace, [0, 1, 1, 3, 2, 5, 3, 7]); + }); + test('all', () { + expect([1, 3, 5, 7].whereNotIndexed((i, x) => x.isEven), + [1, 3, 5, 7]); + }); + test('some', () { + expect([1, 3, 5, 7].whereNotIndexed((i, x) => i.isOdd), [1, 5]); + }); + }); + group('.expandIndexed', () { + test('empty', () { + expect([].expandIndexed(unreachable), isEmpty); + }); + test('empty result', () { + expect(['a', 'b'].expandIndexed((i, v) => []), isEmpty); + }); + test('larger result', () { + expect(['a', 'b'].expandIndexed((i, v) => ['$i', v]), + ['0', 'a', '1', 'b']); + }); + test('varying result', () { + expect(['a', 'b'].expandIndexed((i, v) => i.isOdd ? ['$i', v] : []), + ['1', 'b']); + }); + }); + }); + group('on comparable', () { + group('.binarySearch', () { + test('empty', () { + expect([].binarySearch('1', unreachable), -1); + expect([].binarySearch('1'), -1); + }); + test('single', () { + expect(['0'].binarySearch('1', cmpString), -1); + expect(['1'].binarySearch('1', cmpString), 0); + expect(['2'].binarySearch('1', cmpString), -1); + expect( + ['0'].binarySearch( + '1', + ), + -1); + expect( + ['1'].binarySearch( + '1', + ), + 0); + expect( + ['2'].binarySearch( + '1', + ), + -1); + }); + test('multiple', () { + expect( + ['1', '2', '3', '4', '5', '6'].binarySearch('3', cmpString), 2); + expect(['1', '2', '3', '4', '5', '6'].binarySearch('3'), 2); + expect( + ['6', '5', '4', '3', '2', '1'].binarySearch('3', cmpParseInverse), + 3); + }); + }); + }); + group('.lowerBound', () { + test('empty', () { + expect([].lowerBound('1', unreachable), 0); + }); + test('single', () { + expect(['0'].lowerBound('1', cmpString), 1); + expect(['1'].lowerBound('1', cmpString), 0); + expect(['2'].lowerBound('1', cmpString), 0); + expect(['0'].lowerBound('1'), 1); + expect(['1'].lowerBound('1'), 0); + expect(['2'].lowerBound('1'), 0); + }); + test('multiple', () { + expect(['1', '2', '3', '4', '5', '6'].lowerBound('3', cmpParse), 2); + expect(['1', '2', '3', '4', '5', '6'].lowerBound('3'), 2); + expect( + ['6', '5', '4', '3', '2', '1'].lowerBound('3', cmpParseInverse), 3); + expect(['1', '2', '4', '5', '6'].lowerBound('3', cmpParse), 2); + expect(['1', '2', '4', '5', '6'].lowerBound('3'), 2); + expect(['6', '5', '4', '2', '1'].lowerBound('3', cmpParseInverse), 3); + }); + }); + group('sortRange', () { + test('errors', () { + expect(() => [1].sortRange(-1, 1, cmpInt), throwsArgumentError); + expect(() => [1].sortRange(0, 2, cmpInt), throwsArgumentError); + expect(() => [1].sortRange(1, 0, cmpInt), throwsArgumentError); + }); + test('empty range', () { + [].sortRange(0, 0, unreachable); + var list = [3, 2, 1]; + list.sortRange(0, 0, unreachable); + list.sortRange(3, 3, unreachable); + expect(list, [3, 2, 1]); + }); + test('single', () { + [1].sortRange(0, 1, unreachable); + var list = [3, 2, 1]; + list.sortRange(0, 1, unreachable); + list.sortRange(1, 2, unreachable); + list.sortRange(2, 3, unreachable); + }); + test('multiple', () { + var list = [9, 8, 7, 6, 5, 4, 3, 2, 1]; + list.sortRange(2, 5, cmpInt); + expect(list, [9, 8, 5, 6, 7, 4, 3, 2, 1]); + list.sortRange(4, 8, cmpInt); + expect(list, [9, 8, 5, 6, 2, 3, 4, 7, 1]); + list.sortRange(3, 6, cmpIntInverse); + expect(list, [9, 8, 5, 6, 3, 2, 4, 7, 1]); + }); + }); + }); +} + +/// Creates a plain iterable not implementing any other class. +Iterable iterable(Iterable values) sync* { + yield* values; +} + +Never unreachable([_, __, ___]) => fail('Unreachable'); + +String toString(Object? o) => '$o'; + +/// Compares values equal if they have the same remainder mod [mod]. +int Function(int, int) cmpMod(int mod) => (a, b) => a ~/ mod - b ~/ mod; + +/// Compares strings lexically. +int cmpString(String a, String b) => a.compareTo(b); + +/// Compares strings inverse lexically. +int cmpStringInverse(String a, String b) => b.compareTo(a); + +/// Compares strings by length. +int cmpStringLength(String a, String b) => a.length - b.length; + +/// Compares strings by their integer numeral content. +int cmpParse(String s1, String s2) => cmpInt(int.parse(s1), int.parse(s2)); + +/// Compares strings inversely by their integer numeral content. +int cmpParseInverse(String s1, String s2) => + cmpIntInverse(int.parse(s1), int.parse(s2)); + +/// Compares integers by size. +int cmpInt(int a, int b) => a - b; + +/// Compares integers by inverse size. +int cmpIntInverse(int a, int b) => b - a; + +/// Tests an integer for being even. +bool isEven(int x) => x.isEven; + +/// Tests an integer for being odd. +bool isOdd(int x) => x.isOdd; From ae78ba905fa605913039a63889052b2c10dc83ca Mon Sep 17 00:00:00 2001 From: "Lasse R.H. Nielsen" Date: Thu, 8 Oct 2020 16:40:35 +0200 Subject: [PATCH 141/235] Add `choose` extension method to iterable, choosing a number of elements at random. (dart-lang/collection#158) * Add `sample` extension method to iterable, choosing a number of elements at random. Inspired by: https://stackoverflow.com/questions/64117939/picking-n-unique-random-enums-in-dart --- .../lib/src/iterable_extensions.dart | 35 ++++++++++++- pkgs/collection/test/extensions_test.dart | 49 ++++++++++++++++++- 2 files changed, 82 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/lib/src/iterable_extensions.dart b/pkgs/collection/lib/src/iterable_extensions.dart index 728c1ecb..82217e94 100644 --- a/pkgs/collection/lib/src/iterable_extensions.dart +++ b/pkgs/collection/lib/src/iterable_extensions.dart @@ -2,6 +2,8 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. +import 'dart:math' show Random; + import 'package:collection/src/utils.dart'; import 'algorithms.dart'; @@ -16,6 +18,37 @@ import 'algorithms.dart'; /// iterables with specific element types include those of /// [IterableComparableExtension] and [IterableNullableExtension]. extension IterableExtension on Iterable { + /// Selects [count] elements at random from this iterable. + /// + /// The returned list contains [count] different elements of the iterable. + /// If the iterable contains fewer that [count] elements, + /// the result will contain all of them, but will be shorter than [count]. + /// If the same value occurs more than once in the iterable, + /// it can also occur more than once in the chosen elements. + /// + /// Each element of the iterable has the same chance of being chosen. + /// The chosen elements are not in any specific order. + List sample(int count, [Random? random]) { + RangeError.checkNotNegative(count, 'count'); + var iterator = this.iterator; + var chosen = []; + for (var i = 0; i < count; i++) { + if (iterator.moveNext()) { + chosen.add(iterator.current); + } else { + return chosen; + } + } + var index = count; + random ??= Random(); + while (iterator.moveNext()) { + index++; + var position = random.nextInt(index); + if (position < count) chosen[position] = iterator.current; + } + return chosen; + } + /// The elements that do not satisfy [test]. Iterable whereNot(bool Function(T element) test) => where((element) => !test(element)); @@ -740,7 +773,7 @@ extension IterableComparableExtension> on Iterable { /// Extensions on comparator functions. extension ComparatorExtension on Comparator { /// The inverse ordering of this comparator. - int Function(T, T) get inverse => (T a, T b) => this(b, a); + Comparator get inverse => (T a, T b) => this(b, a); /// Makes a comparator on [R] values using this comparator. /// diff --git a/pkgs/collection/test/extensions_test.dart b/pkgs/collection/test/extensions_test.dart index 3289757a..5d36020c 100644 --- a/pkgs/collection/test/extensions_test.dart +++ b/pkgs/collection/test/extensions_test.dart @@ -2,7 +2,7 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import 'dart:math' show pow; +import 'dart:math' show pow, Random; import 'package:test/test.dart'; @@ -989,6 +989,53 @@ void main() { expect(iterable(['4', '3', '2', '1']).isSorted(), false); }); }); + group('.sample', () { + test('errors', () { + expect(() => iterable([1]).sample(-1), throwsRangeError); + }); + test('empty', () { + var empty = iterable([]); + expect(empty.sample(0), []); + expect(empty.sample(5), []); + }); + test('single', () { + var single = iterable([1]); + expect(single.sample(0), []); + expect(single.sample(1), [1]); + expect(single.sample(5), [1]); + }); + test('multiple', () { + var multiple = iterable([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]); + expect(multiple.sample(0), []); + var one = multiple.sample(1); + expect(one, hasLength(1)); + expect(one.first, inInclusiveRange(1, 10)); + var some = multiple.sample(3); + expect(some, hasLength(3)); + expect(some[0], inInclusiveRange(1, 10)); + expect(some[1], inInclusiveRange(1, 10)); + expect(some[2], inInclusiveRange(1, 10)); + expect(some[0], isNot(some[1])); + expect(some[0], isNot(some[2])); + expect(some[1], isNot(some[2])); + + var seen = {}; + do { + seen.addAll(multiple.sample(3)); + } while (seen.length < 10); + // Should eventually terminate. + }); + test('random', () { + // Passing in a `Random` makes result deterministic. + var multiple = iterable([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]); + var seed = 12345; + var some = multiple.sample(5, Random(seed)); + for (var i = 0; i < 10; i++) { + var other = multiple.sample(5, Random(seed)); + expect(other, some); + } + }); + }); }); group('Comparator', () { From 013f96689952eb8a7a2d74ea84f0e36a33f6703c Mon Sep 17 00:00:00 2001 From: Jacob MacDonald Date: Fri, 23 Oct 2020 09:11:16 -0700 Subject: [PATCH 142/235] Allow prerelease versions of the 2.12 sdk (dart-lang/collection#162) --- pkgs/collection/CHANGELOG.md | 4 +++- pkgs/collection/pubspec.yaml | 4 ++-- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index e99669f3..088e8383 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,4 +1,6 @@ -## 1.15.0-nullsafety.4-dev +## 1.15.0-nullsafety.4 + +* Allow prerelease versions of the `2.12.x` sdk. * Remove the unusable setter `UnionSetController.set=`. This was mistakenly added to the public API but could never be called. diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index b94841d8..8a0da725 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,11 +1,11 @@ name: collection -version: 1.15.0-nullsafety.4-dev +version: 1.15.0-nullsafety.4 description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection environment: - sdk: '>=2.10.0-78 <2.11.0' + sdk: '>=2.10.0-78 <2.12.0' dev_dependencies: pedantic: ^1.9.0 From 0b5492dfc162b0d419e664eab790aa63cbd783b4 Mon Sep 17 00:00:00 2001 From: Jacob MacDonald Date: Fri, 23 Oct 2020 12:59:26 -0700 Subject: [PATCH 143/235] remove git overrdies (dart-lang/collection#163) --- pkgs/collection/pubspec.yaml | 58 ++---------------------------------- 1 file changed, 2 insertions(+), 56 deletions(-) diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 8a0da725..74c7f1ce 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -8,59 +8,5 @@ environment: sdk: '>=2.10.0-78 <2.12.0' dev_dependencies: - pedantic: ^1.9.0 - test: ^1.0.0 - -dependency_overrides: - async: - git: git://github.com/dart-lang/async.git - boolean_selector: - git: git://github.com/dart-lang/boolean_selector.git - charcode: - git: git://github.com/dart-lang/charcode.git - js: - git: - url: git://github.com/dart-lang/sdk.git - path: pkg/js - ref: 2-10-pkgs - matcher: - git: git://github.com/dart-lang/matcher.git - meta: - git: - url: git://github.com/dart-lang/sdk.git - path: pkg/meta - ref: 2-10-pkgs - path: - git: git://github.com/dart-lang/path.git - pedantic: - git: git://github.com/dart-lang/pedantic.git - pool: - git: git://github.com/dart-lang/pool.git - source_maps: - git: git://github.com/dart-lang/source_maps.git - source_map_stack_trace: - git: git://github.com/dart-lang/source_map_stack_trace.git - source_span: - git: git://github.com/dart-lang/source_span.git - stack_trace: - git: git://github.com/dart-lang/stack_trace.git - stream_channel: - git: git://github.com/dart-lang/stream_channel.git - string_scanner: - git: git://github.com/dart-lang/string_scanner.git - term_glyph: - git: git://github.com/dart-lang/term_glyph.git - test_api: - git: - url: git://github.com/dart-lang/test.git - path: pkgs/test_api - test_core: - git: - url: git://github.com/dart-lang/test.git - path: pkgs/test_core - test: - git: - url: git://github.com/dart-lang/test.git - path: pkgs/test - typed_data: - git: git://github.com/dart-lang/typed_data.git + pedantic: ^1.10.0-nullsafety + test: ^1.16.0-nullsafety From a8650190f06b37513e78d97c0805e1c6df799e5d Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Tue, 27 Oct 2020 03:25:35 -0700 Subject: [PATCH 144/235] Fix typo in expandIndexed (dart-lang/collection#160) * Fix typo in expandIndex --- pkgs/collection/CHANGELOG.md | 4 ++++ pkgs/collection/lib/src/list_extensions.dart | 2 +- pkgs/collection/pubspec.yaml | 2 +- 3 files changed, 6 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 088e8383..19585357 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.15.0-nullsafety.5 + +* Fix typo in extension method `expandIndexed`. + ## 1.15.0-nullsafety.4 * Allow prerelease versions of the `2.12.x` sdk. diff --git a/pkgs/collection/lib/src/list_extensions.dart b/pkgs/collection/lib/src/list_extensions.dart index c1f4af04..f61d6105 100644 --- a/pkgs/collection/lib/src/list_extensions.dart +++ b/pkgs/collection/lib/src/list_extensions.dart @@ -165,7 +165,7 @@ extension ListExtensions on List { /// /// Like [Iterable.expand] except that the callback function is supplied with /// both the index and the element. - Iterable expendIndexed( + Iterable expandIndexed( Iterable Function(int index, E element) expand) sync* { for (var index = 0; index < length; index++) { yield* expand(index, this[index]); diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 74c7f1ce..cd30d3d1 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.15.0-nullsafety.4 +version: 1.15.0-nullsafety.5 description: Collections and utilities functions and classes related to collections. homepage: https://www.github.com/dart-lang/collection From c0417fe1f29d812009a99dc370f8d51808711a58 Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Tue, 27 Oct 2020 08:14:59 -0700 Subject: [PATCH 145/235] Update pubspec.yaml --- pkgs/collection/pubspec.yaml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index cd30d3d1..74b85a82 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -2,7 +2,7 @@ name: collection version: 1.15.0-nullsafety.5 description: Collections and utilities functions and classes related to collections. -homepage: https://www.github.com/dart-lang/collection +homepage: https://github.com/dart-lang/collection environment: sdk: '>=2.10.0-78 <2.12.0' From 21985ab7cd9161b4ba3232c90cdbcda0254f2f66 Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Tue, 3 Nov 2020 14:08:14 -0800 Subject: [PATCH 146/235] Bump SDK constraints for pub (dart-lang/collection#37) (dart-lang/collection#164) Use a 2.12.0 lower bound since pub does not understand allowed experiments for earlier versions. Use a 3.0.0 upper bound to avoid a warning in pub and to give some flexibility in publishing for stable. --- pkgs/collection/CHANGELOG.md | 2 ++ pkgs/collection/pubspec.yaml | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 19585357..12dec497 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,6 +1,8 @@ ## 1.15.0-nullsafety.5 * Fix typo in extension method `expandIndexed`. +* Update sdk constraints to `>=2.12.0-0 <3.0.0` based on beta release + guidelines. ## 1.15.0-nullsafety.4 diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 74b85a82..375dd916 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -5,7 +5,7 @@ description: Collections and utilities functions and classes related to collecti homepage: https://github.com/dart-lang/collection environment: - sdk: '>=2.10.0-78 <2.12.0' + sdk: ">=2.12.0-0 <3.0.0" dev_dependencies: pedantic: ^1.10.0-nullsafety From db26563fb1991f916deb5d2c7fa93dd232aa6ff5 Mon Sep 17 00:00:00 2001 From: Phil Quitslund Date: Thu, 12 Nov 2020 07:13:43 -0800 Subject: [PATCH 147/235] remove redundant experiment (dart-lang/collection#165) --- pkgs/collection/analysis_options.yaml | 2 -- 1 file changed, 2 deletions(-) diff --git a/pkgs/collection/analysis_options.yaml b/pkgs/collection/analysis_options.yaml index d813ed96..483d38f0 100644 --- a/pkgs/collection/analysis_options.yaml +++ b/pkgs/collection/analysis_options.yaml @@ -5,8 +5,6 @@ analyzer: unused_import: error unused_local_variable: error dead_code: error - enable-experiment: - - non-nullable linter: rules: # Errors From 5980c20616eac0c076a54b01981d8e72ba6591f1 Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Thu, 12 Nov 2020 17:44:20 -0800 Subject: [PATCH 148/235] Delete .test_config (dart-lang/collection#168) --- pkgs/collection/.test_config | 3 --- 1 file changed, 3 deletions(-) delete mode 100644 pkgs/collection/.test_config diff --git a/pkgs/collection/.test_config b/pkgs/collection/.test_config deleted file mode 100644 index 412fc5c5..00000000 --- a/pkgs/collection/.test_config +++ /dev/null @@ -1,3 +0,0 @@ -{ - "test_package": true -} \ No newline at end of file From a63933718cc68501c6b9240409946b8637b54b84 Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Thu, 12 Nov 2020 18:02:50 -0800 Subject: [PATCH 149/235] Move to GitHub Actions for CI (dart-lang/collection#167) remove travis and .test_config --- pkgs/collection/.github/workflows/ci.yml | 24 ++++++++++++++ pkgs/collection/.travis.yml | 40 ------------------------ 2 files changed, 24 insertions(+), 40 deletions(-) create mode 100644 pkgs/collection/.github/workflows/ci.yml delete mode 100644 pkgs/collection/.travis.yml diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml new file mode 100644 index 00000000..9dab4549 --- /dev/null +++ b/pkgs/collection/.github/workflows/ci.yml @@ -0,0 +1,24 @@ +name: ci + +on: + push: + branches: [ master ] + pull_request: + schedule: + # “At 00:00 (UTC) on Sunday.” + - cron: '0 0 * * 0' + +jobs: + ci: + runs-on: ubuntu-latest + steps: + - uses: cedx/setup-dart@v2 + with: + release-channel: dev + - uses: actions/checkout@v2 + + - run: pub get + + - run: dart format --output=none --set-exit-if-changed . + - run: dart analyze --fatal-infos . + - run: dart test -p vm,chrome diff --git a/pkgs/collection/.travis.yml b/pkgs/collection/.travis.yml deleted file mode 100644 index 4e550df4..00000000 --- a/pkgs/collection/.travis.yml +++ /dev/null @@ -1,40 +0,0 @@ -language: dart - -dart: -- dev - -jobs: - include: - - stage: analyze_and_format - name: "Analyze lib/" - os: linux - script: dartanalyzer --fatal-warnings --fatal-infos lib/ - - stage: analyze_and_format - name: "Analyze test/" - os: linux - script: dartanalyzer --enable-experiment=non-nullable --fatal-warnings --fatal-infos test/ - - stage: analyze_and_format - name: "Format" - os: linux - script: dartfmt -n --set-exit-if-changed . - - stage: test - name: "Vm Tests" - os: linux - script: pub run --enable-experiment=non-nullable test -p vm - - stage: test - name: "Web Tests" - os: linux - script: pub run --enable-experiment=non-nullable test -p chrome - -stages: - - analyze_and_format - - test - -# Only building master means that we don't run two builds for each pull request. -branches: - only: [master, null_safety] - -# Incremental pub cache and builds. -cache: - directories: - - $HOME/.pub-cache From 831dc7e2ac3eb8e9fdbf3b887850f0719f9a72f0 Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Mon, 16 Nov 2020 08:18:59 -0800 Subject: [PATCH 150/235] CI: print Dart version, use pub run test (dart-lang/collection#169) --- pkgs/collection/.github/workflows/ci.yml | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index 9dab4549..e01fec06 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -15,10 +15,11 @@ jobs: - uses: cedx/setup-dart@v2 with: release-channel: dev + - run: dart --version - uses: actions/checkout@v2 - run: pub get - run: dart format --output=none --set-exit-if-changed . - run: dart analyze --fatal-infos . - - run: dart test -p vm,chrome + - run: pub run test -p vm,chrome From 073b30d9fda28ac18ef4b51d132a82c4f4fe887f Mon Sep 17 00:00:00 2001 From: Sam Rawlins Date: Wed, 30 Dec 2020 09:52:06 -0800 Subject: [PATCH 151/235] Remove unnecessary import (dart-lang/collection#175) --- pkgs/collection/lib/src/empty_unmodifiable_set.dart | 2 -- 1 file changed, 2 deletions(-) diff --git a/pkgs/collection/lib/src/empty_unmodifiable_set.dart b/pkgs/collection/lib/src/empty_unmodifiable_set.dart index 44bd5ef7..882b6c84 100644 --- a/pkgs/collection/lib/src/empty_unmodifiable_set.dart +++ b/pkgs/collection/lib/src/empty_unmodifiable_set.dart @@ -6,8 +6,6 @@ import 'dart:collection'; import 'package:collection/collection.dart'; -import 'unmodifiable_wrappers.dart'; - /// An unmodifiable, empty set which can be constant. class EmptyUnmodifiableSet extends IterableBase with UnmodifiableSetMixin From 43f8d690da9d48ce0c52046a2601813586d49f6d Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Thu, 7 Jan 2021 11:16:59 -0800 Subject: [PATCH 152/235] Remove redundant const from examples (dart-lang/collection#176) --- pkgs/collection/CHANGELOG.md | 2 ++ pkgs/collection/README.md | 4 ++-- pkgs/collection/pubspec.yaml | 2 +- 3 files changed, 5 insertions(+), 3 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 12dec497..8084be63 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,5 @@ +## 1.15.0-nullsafety.6-dev + ## 1.15.0-nullsafety.5 * Fix typo in extension method `expandIndexed`. diff --git a/pkgs/collection/README.md b/pkgs/collection/README.md index 6c22c304..e7bd21d7 100644 --- a/pkgs/collection/README.md +++ b/pkgs/collection/README.md @@ -16,14 +16,14 @@ Collections in Dart have no inherent equality. Two sets are not equal, even if they contain exactly the same objects as elements. The `Equality` interface provides a way to define such an equality. In this -case, for example, `const SetEquality(const IdentityEquality())` is an equality +case, for example, `const SetEquality(IdentityEquality())` is an equality that considers two sets equal exactly if they contain identical elements. Equalities are provided for `Iterable`s, `List`s, `Set`s, and `Map`s, as well as combinations of these, such as: ```dart -const MapEquality(const IdentityEquality(), const ListEquality()); +const MapEquality(IdentityEquality(), ListEquality()); ``` This equality considers maps equal if they have identical keys, and the diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 375dd916..cb0b165d 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.15.0-nullsafety.5 +version: 1.15.0-nullsafety.6-dev description: Collections and utilities functions and classes related to collections. homepage: https://github.com/dart-lang/collection From df56c7a139e59f966beeb427a811fc4bec636cfd Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Mon, 1 Feb 2021 11:13:51 -0800 Subject: [PATCH 153/235] Revert "Remove unnecessary import (dart-lang/collection#175)" (dart-lang/collection#177) This reverts commit 073b30d9fda28ac18ef4b51d132a82c4f4fe887f. Reverting to publish with exactly the same `lib/` content as the previous publish. --- pkgs/collection/lib/src/empty_unmodifiable_set.dart | 2 ++ 1 file changed, 2 insertions(+) diff --git a/pkgs/collection/lib/src/empty_unmodifiable_set.dart b/pkgs/collection/lib/src/empty_unmodifiable_set.dart index 882b6c84..44bd5ef7 100644 --- a/pkgs/collection/lib/src/empty_unmodifiable_set.dart +++ b/pkgs/collection/lib/src/empty_unmodifiable_set.dart @@ -6,6 +6,8 @@ import 'dart:collection'; import 'package:collection/collection.dart'; +import 'unmodifiable_wrappers.dart'; + /// An unmodifiable, empty set which can be constant. class EmptyUnmodifiableSet extends IterableBase with UnmodifiableSetMixin From 7686d08b3f76379e53197839ae22111c8624e39e Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Mon, 1 Feb 2021 11:50:47 -0800 Subject: [PATCH 154/235] Prepare to publish stable null safety (dart-lang/collection#178) --- pkgs/collection/CHANGELOG.md | 4 +++- pkgs/collection/pubspec.yaml | 2 +- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 8084be63..f8fe2375 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,4 +1,6 @@ -## 1.15.0-nullsafety.6-dev +## 1.15.0 + +* Stable release for null safety. ## 1.15.0-nullsafety.5 diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index cb0b165d..03a3f549 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.15.0-nullsafety.6-dev +version: 1.15.0 description: Collections and utilities functions and classes related to collections. homepage: https://github.com/dart-lang/collection From 66edaf587507ef80611f09bfd540b3008cb74e41 Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Wed, 24 Mar 2021 16:06:04 -0700 Subject: [PATCH 155/235] Fix typo in argument name (dart-lang/collection#186) Closes dart-lang/collection#185 Update to dart-lang/setup-dart to install dart, test on the oldest supported SDK. --- pkgs/collection/.github/workflows/ci.yml | 66 +++++++++++++++---- pkgs/collection/CHANGELOG.md | 2 + .../lib/src/iterable_extensions.dart | 4 +- pkgs/collection/pubspec.yaml | 6 +- 4 files changed, 59 insertions(+), 19 deletions(-) diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index e01fec06..f1fd21e0 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -1,25 +1,63 @@ -name: ci +name: Dart CI on: push: branches: [ master ] pull_request: + branches: [ master ] schedule: - # “At 00:00 (UTC) on Sunday.” - - cron: '0 0 * * 0' + - cron: "0 0 * * 0" + +env: + PUB_ENVIRONMENT: bot.github jobs: - ci: + # Check code formatting and static analysis on a single OS (linux) + # against Dart dev. + analyze: runs-on: ubuntu-latest + strategy: + fail-fast: false + matrix: + sdk: [dev] steps: - - uses: cedx/setup-dart@v2 - with: - release-channel: dev - - run: dart --version - - uses: actions/checkout@v2 + - uses: actions/checkout@v2 + - uses: dart-lang/setup-dart@v1.0 + with: + sdk: ${{ matrix.sdk }} + - id: install + name: Install dependencies + run: dart pub get + - name: Check formatting + run: dart format --output=none --set-exit-if-changed . + if: always() && steps.install.outcome == 'success' + - name: Analyze code + run: dart analyze --fatal-infos + if: always() && steps.install.outcome == 'success' - - run: pub get - - - run: dart format --output=none --set-exit-if-changed . - - run: dart analyze --fatal-infos . - - run: pub run test -p vm,chrome + # Run tests on a matrix consisting of two dimensions: + # 1. OS: ubuntu-latest, (macos-latest, windows-latest) + # 2. release channel: dev + test: + needs: analyze + runs-on: ${{ matrix.os }} + strategy: + fail-fast: false + matrix: + # Add macos-latest and/or windows-latest if relevant for this package. + os: [ubuntu-latest] + sdk: [2.12.0, dev] + steps: + - uses: actions/checkout@v2 + - uses: dart-lang/setup-dart@v1.0 + with: + sdk: ${{ matrix.sdk }} + - id: install + name: Install dependencies + run: dart pub get + - name: Run VM tests + run: dart test --platform vm --test-randomize-ordering-seed=random + if: always() && steps.install.outcome == 'success' + - name: Run Chrome tests + run: dart test --platform chrome --test-randomize-ordering-seed=random + if: always() && steps.install.outcome == 'success' diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index f8fe2375..e39b9d2c 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,5 @@ +## 1.15.1-dev + ## 1.15.0 * Stable release for null safety. diff --git a/pkgs/collection/lib/src/iterable_extensions.dart b/pkgs/collection/lib/src/iterable_extensions.dart index 82217e94..cddc4970 100644 --- a/pkgs/collection/lib/src/iterable_extensions.dart +++ b/pkgs/collection/lib/src/iterable_extensions.dart @@ -192,10 +192,10 @@ extension IterableExtension on Iterable { /// Expands each element and index to a number of elements in a new iterable. Iterable expandIndexed( - Iterable Function(int index, T element) expend) sync* { + Iterable Function(int index, T element) expand) sync* { var index = 0; for (var element in this) { - yield* expend(index++, element); + yield* expand(index++, element); } } diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 03a3f549..9ce3549e 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,11 +1,11 @@ name: collection -version: 1.15.0 +version: 1.15.1-dev description: Collections and utilities functions and classes related to collections. -homepage: https://github.com/dart-lang/collection +repository: https://github.com/dart-lang/collection environment: - sdk: ">=2.12.0-0 <3.0.0" + sdk: ">=2.12.0 <3.0.0" dev_dependencies: pedantic: ^1.10.0-nullsafety From 6b97446e005262948abdf2f5b24555b48a57ccd6 Mon Sep 17 00:00:00 2001 From: Franklin Yow <58489007+franklinyow@users.noreply.github.com> Date: Thu, 1 Apr 2021 17:07:40 -0700 Subject: [PATCH 156/235] Update LICENSE (dart-lang/collection#187) Changes to comply with internal review --- pkgs/collection/LICENSE | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/LICENSE b/pkgs/collection/LICENSE index de31e1a0..dbd2843a 100644 --- a/pkgs/collection/LICENSE +++ b/pkgs/collection/LICENSE @@ -1,4 +1,5 @@ -Copyright 2015, the Dart project authors. All rights reserved. +Copyright 2015, the Dart project authors. + Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: @@ -9,7 +10,7 @@ met: copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. - * Neither the name of Google Inc. nor the names of its + * Neither the name of Google LLC nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. From 1e47424af11b7d6b031406761128631edb23d77f Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Mon, 26 Apr 2021 09:15:03 -0700 Subject: [PATCH 157/235] Fix newly enforced lint (dart-lang/collection#190) --- pkgs/collection/test/extensions_test.dart | 3 +-- pkgs/collection/test/functions_test.dart | 3 +-- pkgs/collection/test/iterable_zip_test.dart | 3 +-- pkgs/collection/test/priority_queue_test.dart | 4 +--- pkgs/collection/test/union_set_controller_test.dart | 3 +-- pkgs/collection/test/union_set_test.dart | 3 +-- pkgs/collection/test/unmodifiable_collection_test.dart | 3 +-- 7 files changed, 7 insertions(+), 15 deletions(-) diff --git a/pkgs/collection/test/extensions_test.dart b/pkgs/collection/test/extensions_test.dart index 5d36020c..0ea2d95e 100644 --- a/pkgs/collection/test/extensions_test.dart +++ b/pkgs/collection/test/extensions_test.dart @@ -4,9 +4,8 @@ import 'dart:math' show pow, Random; -import 'package:test/test.dart'; - import 'package:collection/collection.dart'; +import 'package:test/test.dart'; void main() { group('Iterable', () { diff --git a/pkgs/collection/test/functions_test.dart b/pkgs/collection/test/functions_test.dart index e37b9785..cffd233f 100644 --- a/pkgs/collection/test/functions_test.dart +++ b/pkgs/collection/test/functions_test.dart @@ -2,9 +2,8 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import 'package:test/test.dart'; - import 'package:collection/collection.dart'; +import 'package:test/test.dart'; void main() { group('mapMap()', () { diff --git a/pkgs/collection/test/iterable_zip_test.dart b/pkgs/collection/test/iterable_zip_test.dart index 991fedaa..3881c6af 100644 --- a/pkgs/collection/test/iterable_zip_test.dart +++ b/pkgs/collection/test/iterable_zip_test.dart @@ -2,9 +2,8 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import 'package:test/test.dart'; - import 'package:collection/collection.dart'; +import 'package:test/test.dart'; /// Iterable like [base] except that it throws when value equals [errorValue]. Iterable iterError(Iterable base, int errorValue) { diff --git a/pkgs/collection/test/priority_queue_test.dart b/pkgs/collection/test/priority_queue_test.dart index ae27f98f..ce0f88e0 100644 --- a/pkgs/collection/test/priority_queue_test.dart +++ b/pkgs/collection/test/priority_queue_test.dart @@ -3,10 +3,8 @@ // BSD-style license that can be found in the LICENSE file. /// Tests priority queue implementations utilities. - -import 'package:test/test.dart'; - import 'package:collection/src/priority_queue.dart'; +import 'package:test/test.dart'; void main() { testDefault(); diff --git a/pkgs/collection/test/union_set_controller_test.dart b/pkgs/collection/test/union_set_controller_test.dart index 3604d628..5d947529 100644 --- a/pkgs/collection/test/union_set_controller_test.dart +++ b/pkgs/collection/test/union_set_controller_test.dart @@ -2,9 +2,8 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import 'package:test/test.dart'; - import 'package:collection/collection.dart'; +import 'package:test/test.dart'; void main() { late UnionSetController controller; diff --git a/pkgs/collection/test/union_set_test.dart b/pkgs/collection/test/union_set_test.dart index e5da5465..fe9e2043 100644 --- a/pkgs/collection/test/union_set_test.dart +++ b/pkgs/collection/test/union_set_test.dart @@ -2,9 +2,8 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import 'package:test/test.dart'; - import 'package:collection/collection.dart'; +import 'package:test/test.dart'; void main() { group('with an empty outer set', () { diff --git a/pkgs/collection/test/unmodifiable_collection_test.dart b/pkgs/collection/test/unmodifiable_collection_test.dart index ea93e31e..1eaed3f5 100644 --- a/pkgs/collection/test/unmodifiable_collection_test.dart +++ b/pkgs/collection/test/unmodifiable_collection_test.dart @@ -2,9 +2,8 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import 'package:test/test.dart'; - import 'package:collection/collection.dart'; +import 'package:test/test.dart'; // Test unmodifiable collection views. // The collections should pass through the operations that are allowed, From c02a1548525249d6219bac9e5efb40488f6c07d7 Mon Sep 17 00:00:00 2001 From: Xavier H Date: Thu, 6 May 2021 10:33:09 +0200 Subject: [PATCH 158/235] Use a stable sort algorithm for Iterable.sortedBy (dart-lang/collection#192) * Use a stable sort algorithm for Iterable.sortedBy * Increment version number and add changelog entry --- pkgs/collection/CHANGELOG.md | 4 +++- pkgs/collection/lib/src/iterable_extensions.dart | 4 ++-- pkgs/collection/pubspec.yaml | 2 +- 3 files changed, 6 insertions(+), 4 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index e39b9d2c..0e5a4af9 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,4 +1,6 @@ -## 1.15.1-dev +## 1.16.0 + +* Use a stable sort algorithm in the `IterableExtension.sortedBy` method. ## 1.15.0 diff --git a/pkgs/collection/lib/src/iterable_extensions.dart b/pkgs/collection/lib/src/iterable_extensions.dart index cddc4970..b0bf0ad0 100644 --- a/pkgs/collection/lib/src/iterable_extensions.dart +++ b/pkgs/collection/lib/src/iterable_extensions.dart @@ -64,7 +64,7 @@ extension IterableExtension on Iterable { /// property [keyOf] of the element. List sortedBy>(K Function(T element) keyOf) { var elements = [...this]; - quickSortBy(elements, keyOf, compareComparable); + mergeSortBy(elements, keyOf, compareComparable); return elements; } @@ -75,7 +75,7 @@ extension IterableExtension on Iterable { List sortedByCompare( K Function(T element) keyOf, Comparator compare) { var elements = [...this]; - quickSortBy(elements, keyOf, compare); + mergeSortBy(elements, keyOf, compare); return elements; } diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 9ce3549e..c8a468ea 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.15.1-dev +version: 1.16.0 description: Collections and utilities functions and classes related to collections. repository: https://github.com/dart-lang/collection From b8382361e85e63e61ab4a7b5f24722f5fda0c4a7 Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Thu, 20 May 2021 12:48:29 -0700 Subject: [PATCH 159/235] Fix new unused import diagnostic (dart-lang/collection#198) The check is now stronger and surfaces imports that are only exposing symbols that are also available through other imports. --- pkgs/collection/lib/src/empty_unmodifiable_set.dart | 2 -- 1 file changed, 2 deletions(-) diff --git a/pkgs/collection/lib/src/empty_unmodifiable_set.dart b/pkgs/collection/lib/src/empty_unmodifiable_set.dart index 44bd5ef7..882b6c84 100644 --- a/pkgs/collection/lib/src/empty_unmodifiable_set.dart +++ b/pkgs/collection/lib/src/empty_unmodifiable_set.dart @@ -6,8 +6,6 @@ import 'dart:collection'; import 'package:collection/collection.dart'; -import 'unmodifiable_wrappers.dart'; - /// An unmodifiable, empty set which can be constant. class EmptyUnmodifiableSet extends IterableBase with UnmodifiableSetMixin From 48845486b05e89c8c216bc447b084d547d61d3a6 Mon Sep 17 00:00:00 2001 From: "Lasse R.H. Nielsen" Date: Fri, 21 May 2021 18:22:47 +0200 Subject: [PATCH 160/235] Add `count` and `countWhere` extensions. (dart-lang/collection#196) * Add `count` and `countWhere` extensions. --- pkgs/collection/CHANGELOG.md | 1 + .../lib/src/empty_unmodifiable_set.dart | 3 +- .../lib/src/iterable_extensions.dart | 40 ++++++++++++ pkgs/collection/test/extensions_test.dart | 63 +++++++++++++++++++ 4 files changed, 106 insertions(+), 1 deletion(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 0e5a4af9..d4263e89 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,6 +1,7 @@ ## 1.16.0 * Use a stable sort algorithm in the `IterableExtension.sortedBy` method. +* Add `count` and `countWhere` extensions on `Iterable`. ## 1.15.0 diff --git a/pkgs/collection/lib/src/empty_unmodifiable_set.dart b/pkgs/collection/lib/src/empty_unmodifiable_set.dart index 882b6c84..725dfc02 100644 --- a/pkgs/collection/lib/src/empty_unmodifiable_set.dart +++ b/pkgs/collection/lib/src/empty_unmodifiable_set.dart @@ -4,7 +4,8 @@ import 'dart:collection'; -import 'package:collection/collection.dart'; +import 'unmodifiable_wrappers.dart'; +import 'wrappers.dart'; /// An unmodifiable, empty set which can be constant. class EmptyUnmodifiableSet extends IterableBase diff --git a/pkgs/collection/lib/src/iterable_extensions.dart b/pkgs/collection/lib/src/iterable_extensions.dart index b0bf0ad0..1c82bc4c 100644 --- a/pkgs/collection/lib/src/iterable_extensions.dart +++ b/pkgs/collection/lib/src/iterable_extensions.dart @@ -18,6 +18,46 @@ import 'algorithms.dart'; /// iterables with specific element types include those of /// [IterableComparableExtension] and [IterableNullableExtension]. extension IterableExtension on Iterable { + /// Counts the elements that are equal to [value]. + /// + /// Returns the number of elements of this iterable + /// which are equal to [value] according to their `==` + /// operation. + /// + /// Example: + /// ```dart + /// var nullCount = maybeValues.count(null); + /// ``` + /// + /// Equivalent to `.countWhere((e) => e == value)`. + int count(T value) { + var result = 0; + for (var element in this) { + if (element == value) result++; + } + return result; + } + + /// Counts the elements that satisfy [test]. + /// + /// Returns the number of elements of this iterable + /// which [test] returns `true` for. + /// The test must not modify this iterable. + /// + /// Example: + /// ```dart + /// var primeCount = integers.countWhere(isPrime); + /// ``` + /// + /// Equivalent to `.where(test).length`. + int countWhere(bool Function(T element) test) { + var result = 0; + for (var element in this) { + if (test(element)) result++; + } + return result; + } + /// Selects [count] elements at random from this iterable. /// /// The returned list contains [count] different elements of the iterable. diff --git a/pkgs/collection/test/extensions_test.dart b/pkgs/collection/test/extensions_test.dart index 0ea2d95e..b32a0d40 100644 --- a/pkgs/collection/test/extensions_test.dart +++ b/pkgs/collection/test/extensions_test.dart @@ -10,6 +10,58 @@ import 'package:test/test.dart'; void main() { group('Iterable', () { group('of any', () { + group('.count', () { + test('empty', () { + // Empty iterable. + var iterable = [1, 2, 3, 2, 3, 2].where((_) => false); + expect(iterable.count(1), 0); + expect([].count(1), 0); + }); + test('none', () { + var iterable = [1, 2, 3, 4, 2, 3, 2].where((_) => true); + expect(iterable.count(0), 0); + expect([4].count(0), 0); + }); + test('single', () { + var iterable = [1, 2, 3, 4, 2, 3, 2].where((_) => true); + expect(iterable.count(4), 1); + expect([4].count(4), 1); + }); + test('multiple', () { + var iterable = [1, 2, 3, 4, 2, 3, 2].where((_) => true); + expect(iterable.count(2), 3); + expect(iterable.count(3), 2); + expect([2, 3, 2].count(2), 2); + }); + test('uses element equality', () { + var iterable = [EqTo(2), 2]; + expect(iterable.count(2), 2); + }); + }); + group('.countWhere', () { + test('empty', () { + // Empty iterable. + var iterable = [1, 2, 3, 2, 3, 2].where((_) => false); + expect(iterable.countWhere((_) => true), 0); + expect([].countWhere((_) => true), 0); + }); + test('none', () { + var iterable = [1, 2, 3, 4, 2, 3, 2].where((_) => true); + expect(iterable.countWhere((_) => false), 0); + expect([4].countWhere((_) => false), 0); + }); + test('single', () { + var iterable = [1, 2, 3, 4, 2, 3, 2].where((_) => true); + expect(iterable.countWhere((x) => x == 4), 1); + expect([4].countWhere((x) => x == 4), 1); + }); + test('multiple', () { + var iterable = [1, 2, 3, 4, 2, 3, 2].where((_) => true); + expect(iterable.countWhere((x) => x == 2), 3); + expect(iterable.countWhere((x) => x == 3), 2); + expect([2, 3, 2].countWhere((x) => x == 2), 2); + }); + }); group('.whereNot', () { test('empty', () { expect(iterable([]).whereNot(unreachable), isEmpty); @@ -1703,3 +1755,14 @@ bool isEven(int x) => x.isEven; /// Tests an integer for being odd. bool isOdd(int x) => x.isOdd; + +/// Objects which claim to be equal to other values. +class EqTo { + final Object? value; + EqTo(this.value); + @override + int get hashCode => value.hashCode; + @override + bool operator ==(Object other) => + value == (other is EqTo ? other.value : other); +} From 9e986c035aee2e4a322378d109b619c21c171672 Mon Sep 17 00:00:00 2001 From: "Lasse R.H. Nielsen" Date: Fri, 25 Jun 2021 10:06:41 +0200 Subject: [PATCH 161/235] Migrate package to use `lints` package instead of `pedantic` package. (dart-lang/collection#197) Address all new warnings. --- pkgs/collection/analysis_options.yaml | 10 +----- pkgs/collection/lib/src/algorithms.dart | 4 +-- .../collection/lib/src/canonicalized_map.dart | 4 +-- .../lib/src/empty_unmodifiable_set.dart | 2 +- pkgs/collection/lib/src/equality.dart | 36 +++++++++---------- .../lib/src/iterable_extensions.dart | 4 +-- pkgs/collection/lib/src/priority_queue.dart | 6 ++-- pkgs/collection/lib/src/queue_list.dart | 2 +- pkgs/collection/lib/src/wrappers.dart | 14 ++++---- pkgs/collection/pubspec.yaml | 2 +- .../test/canonicalized_map_test.dart | 2 +- pkgs/collection/test/queue_list_test.dart | 2 +- pkgs/collection/test/union_set_test.dart | 10 +++--- .../test/unmodifiable_collection_test.dart | 2 ++ pkgs/collection/test/wrapper_test.dart | 1 + 15 files changed, 47 insertions(+), 54 deletions(-) diff --git a/pkgs/collection/analysis_options.yaml b/pkgs/collection/analysis_options.yaml index 483d38f0..72e4a38a 100644 --- a/pkgs/collection/analysis_options.yaml +++ b/pkgs/collection/analysis_options.yaml @@ -1,4 +1,4 @@ -include: package:pedantic/analysis_options.1.9.0.yaml +include: package:lints/recommended.yaml analyzer: errors: unused_element: error @@ -8,18 +8,10 @@ analyzer: linter: rules: # Errors - - control_flow_in_finally - - empty_statements - - hash_and_equals - - implementation_imports - test_types_in_equals - throw_in_finally # Style - avoid_private_typedef_functions - - avoid_renaming_method_parameters - - await_only_futures - - camel_case_types - directives_ordering - - non_constant_identifier_names - only_throw_errors diff --git a/pkgs/collection/lib/src/algorithms.dart b/pkgs/collection/lib/src/algorithms.dart index d589e1ec..820d32bb 100644 --- a/pkgs/collection/lib/src/algorithms.dart +++ b/pkgs/collection/lib/src/algorithms.dart @@ -227,9 +227,7 @@ void mergeSort(List elements, var secondLength = end - middle; // secondLength is always the same as firstLength, or one greater. var scratchSpace = List.filled(secondLength, elements[start]); - // TODO(linter/2097): Remove ignore when no longer required by linter. - // See: https://github.com/dart-lang/linter/issues/2097 - E Function(E) id = identity; // ignore: omit_local_variable_types + E Function(E) id = identity; _mergeSort(elements, id, compare, middle, end, scratchSpace, 0); var firstTarget = end - firstLength; _mergeSort(elements, id, compare, start, middle, elements, firstTarget); diff --git a/pkgs/collection/lib/src/canonicalized_map.dart b/pkgs/collection/lib/src/canonicalized_map.dart index 5f97b254..de63908a 100644 --- a/pkgs/collection/lib/src/canonicalized_map.dart +++ b/pkgs/collection/lib/src/canonicalized_map.dart @@ -50,7 +50,7 @@ class CanonicalizedMap implements Map { V? operator [](Object? key) { if (!_isValidKey(key)) return null; var pair = _base[_canonicalize(key as K)]; - return pair == null ? null : pair.value; + return pair?.value; } @override @@ -129,7 +129,7 @@ class CanonicalizedMap implements Map { void removeWhere(bool Function(K key, V value) test) => _base.removeWhere((_, pair) => test(pair.key, pair.value)); - @deprecated + @Deprecated("Use cast instead") Map retype() => cast(); @override diff --git a/pkgs/collection/lib/src/empty_unmodifiable_set.dart b/pkgs/collection/lib/src/empty_unmodifiable_set.dart index 725dfc02..76f9f22c 100644 --- a/pkgs/collection/lib/src/empty_unmodifiable_set.dart +++ b/pkgs/collection/lib/src/empty_unmodifiable_set.dart @@ -27,7 +27,7 @@ class EmptyUnmodifiableSet extends IterableBase Iterable followedBy(Iterable other) => DelegatingIterable(other); @override E? lookup(Object? element) => null; - @deprecated + @Deprecated("Use cast instead") @override EmptyUnmodifiableSet retype() => EmptyUnmodifiableSet(); @override diff --git a/pkgs/collection/lib/src/equality.dart b/pkgs/collection/lib/src/equality.dart index eba3841a..a6b464f0 100644 --- a/pkgs/collection/lib/src/equality.dart +++ b/pkgs/collection/lib/src/equality.dart @@ -6,7 +6,7 @@ import 'dart:collection'; import 'comparators.dart'; -const int _HASH_MASK = 0x7fffffff; +const int _hashMask = 0x7fffffff; /// A generic equality relation on objects. abstract class Equality { @@ -136,13 +136,13 @@ class IterableEquality implements Equality> { var hash = 0; for (var element in elements) { var c = _elementEquality.hash(element); - hash = (hash + c) & _HASH_MASK; - hash = (hash + (hash << 10)) & _HASH_MASK; + hash = (hash + c) & _hashMask; + hash = (hash + (hash << 10)) & _hashMask; hash ^= (hash >> 6); } - hash = (hash + (hash << 3)) & _HASH_MASK; + hash = (hash + (hash << 3)) & _hashMask; hash ^= (hash >> 11); - hash = (hash + (hash << 15)) & _HASH_MASK; + hash = (hash + (hash << 15)) & _hashMask; return hash; } @@ -188,13 +188,13 @@ class ListEquality implements Equality> { var hash = 0; for (var i = 0; i < list.length; i++) { var c = _elementEquality.hash(list[i]); - hash = (hash + c) & _HASH_MASK; - hash = (hash + (hash << 10)) & _HASH_MASK; + hash = (hash + c) & _hashMask; + hash = (hash + (hash << 10)) & _hashMask; hash ^= (hash >> 6); } - hash = (hash + (hash << 3)) & _HASH_MASK; + hash = (hash + (hash << 3)) & _hashMask; hash ^= (hash >> 11); - hash = (hash + (hash << 15)) & _HASH_MASK; + hash = (hash + (hash << 15)) & _hashMask; return hash; } @@ -237,11 +237,11 @@ abstract class _UnorderedEquality?> var hash = 0; for (E element in elements) { var c = _elementEquality.hash(element); - hash = (hash + c) & _HASH_MASK; + hash = (hash + c) & _hashMask; } - hash = (hash + (hash << 3)) & _HASH_MASK; + hash = (hash + (hash << 3)) & _hashMask; hash ^= (hash >> 11); - hash = (hash + (hash << 15)) & _HASH_MASK; + hash = (hash + (hash << 15)) & _hashMask; return hash; } } @@ -287,15 +287,15 @@ class SetEquality extends _UnorderedEquality?> { /// using a combined hashCode and equality of the key and value. class _MapEntry { final MapEquality equality; - final key; - final value; + final Object? key; + final Object? value; _MapEntry(this.equality, this.key, this.value); @override int get hashCode => (3 * equality._keyEquality.hash(key) + 7 * equality._valueEquality.hash(value)) & - _HASH_MASK; + _hashMask; @override bool operator ==(Object other) => @@ -349,11 +349,11 @@ class MapEquality implements Equality> { for (var key in map.keys) { var keyHash = _keyEquality.hash(key); var valueHash = _valueEquality.hash(map[key] as V); - hash = (hash + 3 * keyHash + 7 * valueHash) & _HASH_MASK; + hash = (hash + 3 * keyHash + 7 * valueHash) & _hashMask; } - hash = (hash + (hash << 3)) & _HASH_MASK; + hash = (hash + (hash << 3)) & _hashMask; hash ^= (hash >> 11); - hash = (hash + (hash << 15)) & _HASH_MASK; + hash = (hash + (hash << 15)) & _hashMask; return hash; } diff --git a/pkgs/collection/lib/src/iterable_extensions.dart b/pkgs/collection/lib/src/iterable_extensions.dart index 1c82bc4c..7bb4e227 100644 --- a/pkgs/collection/lib/src/iterable_extensions.dart +++ b/pkgs/collection/lib/src/iterable_extensions.dart @@ -420,7 +420,7 @@ extension IterableExtension on Iterable { Map> groupSetsBy(K Function(T element) keyOf) { var result = >{}; for (var element in this) { - (result[keyOf(element)] ??= {})..add(element); + (result[keyOf(element)] ??= {}).add(element); } return result; } @@ -429,7 +429,7 @@ extension IterableExtension on Iterable { Map> groupListsBy(K Function(T element) keyOf) { var result = >{}; for (var element in this) { - (result[keyOf(element)] ??= [])..add(element); + (result[keyOf(element)] ??= []).add(element); } return result; } diff --git a/pkgs/collection/lib/src/priority_queue.dart b/pkgs/collection/lib/src/priority_queue.dart index 345d6f70..ae4ee9a2 100644 --- a/pkgs/collection/lib/src/priority_queue.dart +++ b/pkgs/collection/lib/src/priority_queue.dart @@ -174,13 +174,13 @@ class HeapPriorityQueue implements PriorityQueue { /// /// Number can be any positive value. Picking a size that gives a whole /// number of "tree levels" in the heap is only done for aesthetic reasons. - static const int _INITIAL_CAPACITY = 7; + static const int _initialCapacity = 7; /// The comparison being used to compare the priority of elements. final Comparator comparison; /// List implementation of a heap. - List _queue = List.filled(_INITIAL_CAPACITY, null); + List _queue = List.filled(_initialCapacity, null); /// Number of elements in queue. /// @@ -451,7 +451,7 @@ class HeapPriorityQueue implements PriorityQueue { /// Called when the list is full. void _grow() { var newCapacity = _queue.length * 2 + 1; - if (newCapacity < _INITIAL_CAPACITY) newCapacity = _INITIAL_CAPACITY; + if (newCapacity < _initialCapacity) newCapacity = _initialCapacity; var newQueue = List.filled(newCapacity, null); newQueue.setRange(0, _length, _queue); _queue = newQueue; diff --git a/pkgs/collection/lib/src/queue_list.dart b/pkgs/collection/lib/src/queue_list.dart index 3bf13f2b..f013723c 100644 --- a/pkgs/collection/lib/src/queue_list.dart +++ b/pkgs/collection/lib/src/queue_list.dart @@ -115,7 +115,7 @@ class QueueList extends Object with ListMixin implements Queue { QueueList cast() => QueueList._castFrom(this); - @deprecated + @Deprecated("Use cast instead") QueueList retype() => cast(); @override diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index b5b61e37..e3803509 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -79,7 +79,7 @@ abstract class _DelegatingIterableBase implements Iterable { @override E reduce(E Function(E value, E element) combine) => _base.reduce(combine); - @deprecated + @Deprecated("Use cast instead") Iterable retype() => cast(); @override @@ -278,7 +278,7 @@ class DelegatingList extends _DelegatingIterableBase implements List { _base.retainWhere(test); } - @deprecated + @Deprecated("Use cast instead") @override List retype() => cast(); @@ -379,7 +379,7 @@ class DelegatingSet extends _DelegatingIterableBase implements Set { _base.retainAll(elements); } - @deprecated + @Deprecated("Use cast instead") @override Set retype() => cast(); @@ -462,7 +462,7 @@ class DelegatingQueue extends _DelegatingIterableBase _base.retainWhere(test); } - @deprecated + @Deprecated("Use cast instead") @override Queue retype() => cast(); @@ -563,7 +563,7 @@ class DelegatingMap implements Map { @override void removeWhere(bool Function(K, V) test) => _base.removeWhere(test); - @deprecated + @Deprecated("Use cast instead") Map retype() => cast(); @override @@ -651,7 +651,7 @@ class MapKeySet extends _DelegatingIterableBase E lookup(Object? element) => throw UnsupportedError("MapKeySet doesn't support lookup()."); - @deprecated + @Deprecated("Use cast instead") @override Set retype() => Set.castFrom(this); @@ -822,7 +822,7 @@ class MapValueSet extends _DelegatingIterableBase implements Set { void retainWhere(bool Function(V) test) => removeWhere((element) => !test(element)); - @deprecated + @Deprecated("Use cast instead") @override Set retype() => Set.castFrom(this); diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index c8a468ea..74f5bc3a 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -8,5 +8,5 @@ environment: sdk: ">=2.12.0 <3.0.0" dev_dependencies: - pedantic: ^1.10.0-nullsafety + lints: ^1.0.0 test: ^1.16.0-nullsafety diff --git a/pkgs/collection/test/canonicalized_map_test.dart b/pkgs/collection/test/canonicalized_map_test.dart index e5bd34eb..dad9c870 100644 --- a/pkgs/collection/test/canonicalized_map_test.dart +++ b/pkgs/collection/test/canonicalized_map_test.dart @@ -160,7 +160,7 @@ void main() { }); group('CanonicalizedMap builds an informative string representation', () { - var map; + dynamic map; setUp(() { map = CanonicalizedMap(int.parse, isValidKey: RegExp(r'^\d+$').hasMatch); diff --git a/pkgs/collection/test/queue_list_test.dart b/pkgs/collection/test/queue_list_test.dart index 21b6056b..57644da9 100644 --- a/pkgs/collection/test/queue_list_test.dart +++ b/pkgs/collection/test/queue_list_test.dart @@ -219,7 +219,7 @@ void main() { }); group('throws a modification error for', () { - var queue; + dynamic queue; setUp(() { queue = QueueList.from([1, 2, 3]); }); diff --git a/pkgs/collection/test/union_set_test.dart b/pkgs/collection/test/union_set_test.dart index fe9e2043..d8897a4e 100644 --- a/pkgs/collection/test/union_set_test.dart +++ b/pkgs/collection/test/union_set_test.dart @@ -7,7 +7,7 @@ import 'package:test/test.dart'; void main() { group('with an empty outer set', () { - var set; + dynamic set; setUp(() { set = UnionSet({}); }); @@ -39,7 +39,7 @@ void main() { }); group('with multiple disjoint sets', () { - var set; + dynamic set; setUp(() { set = UnionSet.from([ {1, 2}, @@ -78,7 +78,7 @@ void main() { }); group('with multiple overlapping sets', () { - var set; + dynamic set; setUp(() { set = UnionSet.from([ {1, 2, 3}, @@ -131,7 +131,7 @@ void main() { }); group('after an inner set was modified', () { - var set; + dynamic set; setUp(() { var innerSet = {3, 7}; set = UnionSet.from([ @@ -175,7 +175,7 @@ void main() { }); group('after the outer set was modified', () { - var set; + dynamic set; setUp(() { var innerSet = {6}; var outerSet = { diff --git a/pkgs/collection/test/unmodifiable_collection_test.dart b/pkgs/collection/test/unmodifiable_collection_test.dart index 1eaed3f5..a0cb89cd 100644 --- a/pkgs/collection/test/unmodifiable_collection_test.dart +++ b/pkgs/collection/test/unmodifiable_collection_test.dart @@ -123,9 +123,11 @@ void testIterable(Iterable original, Iterable wrapped, String name) { test('$name - forEach', () { var wrapCtr = 0; var origCtr = 0; + // ignore: avoid_function_literals_in_foreach_calls wrapped.forEach((x) { wrapCtr += x; }); + // ignore: avoid_function_literals_in_foreach_calls original.forEach((x) { origCtr += x; }); diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index f31499be..00a2ccbf 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -161,6 +161,7 @@ class MapExpector extends Expector implements Map { } // Utility values to use as arguments in calls. +// ignore: prefer_void_to_null Null func0() => null; dynamic func1(dynamic x) => null; dynamic func2(dynamic x, dynamic y) => null; From 73c8cc6f3c133740aff2f69d3cd0e299d404cb67 Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Fri, 25 Jun 2021 01:10:27 -0700 Subject: [PATCH 162/235] Revert "Add `count` and `countWhere` extensions. (dart-lang/collection#196)" (dart-lang/collection#201) This reverts commit 48845486b05e89c8c216bc447b084d547d61d3a6. --- pkgs/collection/CHANGELOG.md | 1 - .../lib/src/empty_unmodifiable_set.dart | 3 +- .../lib/src/iterable_extensions.dart | 40 ------------ pkgs/collection/test/extensions_test.dart | 63 ------------------- 4 files changed, 1 insertion(+), 106 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index d4263e89..0e5a4af9 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,7 +1,6 @@ ## 1.16.0 * Use a stable sort algorithm in the `IterableExtension.sortedBy` method. -* Add `count` and `countWhere` extensions on `Iterable`. ## 1.15.0 diff --git a/pkgs/collection/lib/src/empty_unmodifiable_set.dart b/pkgs/collection/lib/src/empty_unmodifiable_set.dart index 76f9f22c..ed442ca5 100644 --- a/pkgs/collection/lib/src/empty_unmodifiable_set.dart +++ b/pkgs/collection/lib/src/empty_unmodifiable_set.dart @@ -4,8 +4,7 @@ import 'dart:collection'; -import 'unmodifiable_wrappers.dart'; -import 'wrappers.dart'; +import 'package:collection/collection.dart'; /// An unmodifiable, empty set which can be constant. class EmptyUnmodifiableSet extends IterableBase diff --git a/pkgs/collection/lib/src/iterable_extensions.dart b/pkgs/collection/lib/src/iterable_extensions.dart index 7bb4e227..01af51e4 100644 --- a/pkgs/collection/lib/src/iterable_extensions.dart +++ b/pkgs/collection/lib/src/iterable_extensions.dart @@ -18,46 +18,6 @@ import 'algorithms.dart'; /// iterables with specific element types include those of /// [IterableComparableExtension] and [IterableNullableExtension]. extension IterableExtension on Iterable { - /// Counts the elements that are equal to [value]. - /// - /// Returns the number of elements of this iterable - /// which are equal to [value] according to their `==` - /// operation. - /// - /// Example: - /// ```dart - /// var nullCount = maybeValues.count(null); - /// ``` - /// - /// Equivalent to `.countWhere((e) => e == value)`. - int count(T value) { - var result = 0; - for (var element in this) { - if (element == value) result++; - } - return result; - } - - /// Counts the elements that satisfy [test]. - /// - /// Returns the number of elements of this iterable - /// which [test] returns `true` for. - /// The test must not modify this iterable. - /// - /// Example: - /// ```dart - /// var primeCount = integers.countWhere(isPrime); - /// ``` - /// - /// Equivalent to `.where(test).length`. - int countWhere(bool Function(T element) test) { - var result = 0; - for (var element in this) { - if (test(element)) result++; - } - return result; - } - /// Selects [count] elements at random from this iterable. /// /// The returned list contains [count] different elements of the iterable. diff --git a/pkgs/collection/test/extensions_test.dart b/pkgs/collection/test/extensions_test.dart index b32a0d40..0ea2d95e 100644 --- a/pkgs/collection/test/extensions_test.dart +++ b/pkgs/collection/test/extensions_test.dart @@ -10,58 +10,6 @@ import 'package:test/test.dart'; void main() { group('Iterable', () { group('of any', () { - group('.count', () { - test('empty', () { - // Empty iterable. - var iterable = [1, 2, 3, 2, 3, 2].where((_) => false); - expect(iterable.count(1), 0); - expect([].count(1), 0); - }); - test('none', () { - var iterable = [1, 2, 3, 4, 2, 3, 2].where((_) => true); - expect(iterable.count(0), 0); - expect([4].count(0), 0); - }); - test('single', () { - var iterable = [1, 2, 3, 4, 2, 3, 2].where((_) => true); - expect(iterable.count(4), 1); - expect([4].count(4), 1); - }); - test('multiple', () { - var iterable = [1, 2, 3, 4, 2, 3, 2].where((_) => true); - expect(iterable.count(2), 3); - expect(iterable.count(3), 2); - expect([2, 3, 2].count(2), 2); - }); - test('uses element equality', () { - var iterable = [EqTo(2), 2]; - expect(iterable.count(2), 2); - }); - }); - group('.countWhere', () { - test('empty', () { - // Empty iterable. - var iterable = [1, 2, 3, 2, 3, 2].where((_) => false); - expect(iterable.countWhere((_) => true), 0); - expect([].countWhere((_) => true), 0); - }); - test('none', () { - var iterable = [1, 2, 3, 4, 2, 3, 2].where((_) => true); - expect(iterable.countWhere((_) => false), 0); - expect([4].countWhere((_) => false), 0); - }); - test('single', () { - var iterable = [1, 2, 3, 4, 2, 3, 2].where((_) => true); - expect(iterable.countWhere((x) => x == 4), 1); - expect([4].countWhere((x) => x == 4), 1); - }); - test('multiple', () { - var iterable = [1, 2, 3, 4, 2, 3, 2].where((_) => true); - expect(iterable.countWhere((x) => x == 2), 3); - expect(iterable.countWhere((x) => x == 3), 2); - expect([2, 3, 2].countWhere((x) => x == 2), 2); - }); - }); group('.whereNot', () { test('empty', () { expect(iterable([]).whereNot(unreachable), isEmpty); @@ -1755,14 +1703,3 @@ bool isEven(int x) => x.isEven; /// Tests an integer for being odd. bool isOdd(int x) => x.isOdd; - -/// Objects which claim to be equal to other values. -class EqTo { - final Object? value; - EqTo(this.value); - @override - int get hashCode => value.hashCode; - @override - bool operator ==(Object other) => - value == (other is EqTo ? other.value : other); -} From 6ab6093b19c22684cd6c36b2d346fc8fd918fbc2 Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Mon, 12 Jul 2021 15:03:22 -0700 Subject: [PATCH 163/235] Dart format with latest SDK (dart-lang/collection#204) --- pkgs/collection/test/extensions_test.dart | 80 +++++++++++++++++------ 1 file changed, 60 insertions(+), 20 deletions(-) diff --git a/pkgs/collection/test/extensions_test.dart b/pkgs/collection/test/extensions_test.dart index 0ea2d95e..51aac9ed 100644 --- a/pkgs/collection/test/extensions_test.dart +++ b/pkgs/collection/test/extensions_test.dart @@ -140,14 +140,18 @@ void main() { test('single', () { var log = []; iterable(['a']).forEachIndexed((i, s) { - log..add(i)..add(s); + log + ..add(i) + ..add(s); }); expect(log, [0, 'a']); }); test('multiple', () { var log = []; iterable(['a', 'b', 'c']).forEachIndexed((i, s) { - log..add(i)..add(s); + log + ..add(i) + ..add(s); }); expect(log, [0, 'a', 1, 'b', 2, 'c']); }); @@ -204,7 +208,9 @@ void main() { test('single true', () { var log = []; iterable(['a']).forEachIndexedWhile((i, s) { - log..add(i)..add(s); + log + ..add(i) + ..add(s); return true; }); expect(log, [0, 'a']); @@ -212,7 +218,9 @@ void main() { test('single false', () { var log = []; iterable(['a']).forEachIndexedWhile((i, s) { - log..add(i)..add(s); + log + ..add(i) + ..add(s); return false; }); expect(log, [0, 'a']); @@ -220,7 +228,9 @@ void main() { test('multiple one', () { var log = []; iterable(['a', 'b', 'c']).forEachIndexedWhile((i, s) { - log..add(i)..add(s); + log + ..add(i) + ..add(s); return false; }); expect(log, [0, 'a']); @@ -228,7 +238,9 @@ void main() { test('multiple all', () { var log = []; iterable(['a', 'b', 'c']).forEachIndexedWhile((i, s) { - log..add(i)..add(s); + log + ..add(i) + ..add(s); return true; }); expect(log, [0, 'a', 1, 'b', 2, 'c']); @@ -236,7 +248,9 @@ void main() { test('multiple some', () { var log = []; iterable(['a', 'b', 'c']).forEachIndexedWhile((i, s) { - log..add(i)..add(s); + log + ..add(i) + ..add(s); return s != 'b'; }); expect(log, [0, 'a', 1, 'b']); @@ -260,7 +274,9 @@ void main() { test('none', () { var trace = []; int log(int a, int b) { - trace..add(a)..add(b); + trace + ..add(a) + ..add(b); return b; } @@ -286,7 +302,9 @@ void main() { test('none', () { var trace = []; int log(int a, int b) { - trace..add(a)..add(b); + trace + ..add(a) + ..add(b); return b; } @@ -599,7 +617,9 @@ void main() { test('no split', () { var trace = []; bool log(i, x) { - trace..add('$i')..add(x); + trace + ..add('$i') + ..add(x); return false; } @@ -679,7 +699,9 @@ void main() { test('no split', () { var trace = []; bool log(i, x) { - trace..add('$i')..add(x); + trace + ..add('$i') + ..add(x); return false; } @@ -1397,14 +1419,18 @@ void main() { test('single', () { var log = []; ['a'].forEachIndexed((i, s) { - log..add(i)..add(s); + log + ..add(i) + ..add(s); }); expect(log, [0, 'a']); }); test('multiple', () { var log = []; ['a', 'b', 'c'].forEachIndexed((i, s) { - log..add(i)..add(s); + log + ..add(i) + ..add(s); }); expect(log, [0, 'a', 1, 'b', 2, 'c']); }); @@ -1461,7 +1487,9 @@ void main() { test('single true', () { var log = []; ['a'].forEachIndexedWhile((i, s) { - log..add(i)..add(s); + log + ..add(i) + ..add(s); return true; }); expect(log, [0, 'a']); @@ -1469,7 +1497,9 @@ void main() { test('single false', () { var log = []; ['a'].forEachIndexedWhile((i, s) { - log..add(i)..add(s); + log + ..add(i) + ..add(s); return false; }); expect(log, [0, 'a']); @@ -1477,7 +1507,9 @@ void main() { test('multiple one', () { var log = []; ['a', 'b', 'c'].forEachIndexedWhile((i, s) { - log..add(i)..add(s); + log + ..add(i) + ..add(s); return false; }); expect(log, [0, 'a']); @@ -1485,7 +1517,9 @@ void main() { test('multiple all', () { var log = []; ['a', 'b', 'c'].forEachIndexedWhile((i, s) { - log..add(i)..add(s); + log + ..add(i) + ..add(s); return true; }); expect(log, [0, 'a', 1, 'b', 2, 'c']); @@ -1493,7 +1527,9 @@ void main() { test('multiple some', () { var log = []; ['a', 'b', 'c'].forEachIndexedWhile((i, s) { - log..add(i)..add(s); + log + ..add(i) + ..add(s); return s != 'b'; }); expect(log, [0, 'a', 1, 'b']); @@ -1517,7 +1553,9 @@ void main() { test('none', () { var trace = []; int log(int a, int b) { - trace..add(a)..add(b); + trace + ..add(a) + ..add(b); return b; } @@ -1540,7 +1578,9 @@ void main() { test('none', () { var trace = []; int log(int a, int b) { - trace..add(a)..add(b); + trace + ..add(a) + ..add(b); return b; } From 15a7681e6370b884409206e721cfa24f701d1bfa Mon Sep 17 00:00:00 2001 From: AAAbramenko Date: Mon, 6 Sep 2021 17:56:29 +0500 Subject: [PATCH 164/235] Add BoolList class. (dart-lang/collection#120) Adds `BoolList` class which implements a list of booleans with one bit of storage per value. --- pkgs/collection/lib/collection.dart | 1 + pkgs/collection/lib/src/boollist.dart | 258 ++++++++++++++++++++++++ pkgs/collection/test/boollist_test.dart | 162 +++++++++++++++ 3 files changed, 421 insertions(+) create mode 100644 pkgs/collection/lib/src/boollist.dart create mode 100644 pkgs/collection/test/boollist_test.dart diff --git a/pkgs/collection/lib/collection.dart b/pkgs/collection/lib/collection.dart index 27a75c87..f6f4ae3c 100644 --- a/pkgs/collection/lib/collection.dart +++ b/pkgs/collection/lib/collection.dart @@ -4,6 +4,7 @@ export 'src/algorithms.dart' show binarySearch, insertionSort, lowerBound, mergeSort, shuffle, reverse; +export 'src/boollist.dart'; export 'src/canonicalized_map.dart'; export 'src/combined_wrappers/combined_iterable.dart'; export 'src/combined_wrappers/combined_list.dart'; diff --git a/pkgs/collection/lib/src/boollist.dart b/pkgs/collection/lib/src/boollist.dart new file mode 100644 index 00000000..cf23b57f --- /dev/null +++ b/pkgs/collection/lib/src/boollist.dart @@ -0,0 +1,258 @@ +// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +import 'dart:collection' show ListMixin; +import 'dart:typed_data' show Uint32List; + +import 'unmodifiable_wrappers.dart' show NonGrowableListMixin; + +/// A space-efficient list of boolean values. +/// +/// Uses list of integers as internal storage to reduce memory usage. +abstract class BoolList with ListMixin { + static const int _entryShift = 5; + + static const int _bitsPerEntry = 32; + + static const int _entrySignBitIndex = 31; + + int _length; + + Uint32List _data; + + BoolList._(this._data, this._length); + + factory BoolList._selectType(int length, bool growable) { + if (growable) { + return _GrowableBoolList(length); + } else { + return _NonGrowableBoolList(length); + } + } + + /// Creates a list of booleans with the provided length. + /// + /// The list is initially filled with the [fill] value, and + /// the list is growable if [growable] is true. + factory BoolList(int length, {bool fill = false, bool growable = false}) { + RangeError.checkNotNegative(length, 'length'); + + BoolList boolist; + if (growable) { + boolist = _GrowableBoolList(length); + } else { + boolist = _NonGrowableBoolList(length); + } + + if (fill) { + boolist.fillRange(0, length, true); + } + + return boolist; + } + + /// Creates an empty list of booleans. + /// + /// The list defaults to being growable unless [growable] is `false`. + /// If [capacity] is provided, and [growable] is not `false`, + /// the implementation will attempt to make space for that + /// many elements before needing to grow its internal storage. + factory BoolList.empty({bool growable = true, int capacity = 0}) { + RangeError.checkNotNegative(capacity, 'length'); + + if (growable) { + return _GrowableBoolList._withCapacity(0, capacity); + } else { + return _NonGrowableBoolList._withCapacity(0, capacity); + } + } + + /// Generates a [BoolList] of values. + /// + /// Creates a [BoolList] with [length] positions and fills it with values created by + /// calling [generator] for each index in the range `0` .. `length - 1` in increasing order. + /// + /// The created list is fixed-length unless [growable] is true. + factory BoolList.generate( + int length, + bool Function(int) generator, { + bool growable = true, + }) { + RangeError.checkNotNegative(length, 'length'); + + var instance = BoolList._selectType(length, growable); + for (var i = 0; i < length; i++) { + instance._setBit(i, generator(i)); + } + return instance; + } + + /// Creates a list containing all [elements]. + /// + /// The [Iterator] of [elements] provides the order of the elements. + /// + /// This constructor creates a growable [BoolList] when [growable] is true; + /// otherwise, it returns a fixed-length list. + factory BoolList.from(Iterable elements, {bool growable = false}) { + return BoolList._selectType(elements.length, growable)..setAll(0, elements); + } + + @override + int get length => _length; + + @override + bool operator [](int index) { + RangeError.checkValidIndex(index, this, 'index', _length); + return (_data[index >> _entryShift] & + (1 << (index & _entrySignBitIndex))) != + 0; + } + + @override + void operator []=(int index, bool val) { + RangeError.checkValidIndex(index, this, 'index', _length); + _setBit(index, val); + } + + @override + void fillRange(int start, int end, [bool? fill]) { + RangeError.checkValidRange(start, end, _length); + fill ??= false; + + var startWord = start >> _entryShift; + var endWord = (end - 1) >> _entryShift; + + var startBit = start & _entrySignBitIndex; + var endBit = (end - 1) & _entrySignBitIndex; + + if (startWord < endWord) { + if (fill) { + _data[startWord] |= -1 << startBit; + _data.fillRange(startWord + 1, endWord, -1); + _data[endWord] |= (1 << (endBit + 1)) - 1; + } else { + _data[startWord] &= (1 << startBit) - 1; + _data.fillRange(startWord + 1, endWord, 0); + _data[endWord] &= -1 << (endBit + 1); + } + } else { + if (fill) { + _data[startWord] |= ((1 << (endBit - startBit + 1)) - 1) << startBit; + } else { + _data[startWord] &= ((1 << startBit) - 1) | (-1 << (endBit + 1)); + } + } + } + + /// Returns custom iterator for [BoolList]. + /// + /// To provide null safety [Iterator.current] getter of returned iterator + /// returns `false` before and after iteration process. + @override + Iterator get iterator => _BoolListIterator(this); + + void _setBit(int index, bool val) { + if (val) { + _data[index >> _entryShift] |= 1 << (index & _entrySignBitIndex); + } else { + _data[index >> _entryShift] &= ~(1 << (index & _entrySignBitIndex)); + } + } + + static int _lengthInWords(int bitsLength) { + return (bitsLength + (_bitsPerEntry - 1)) >> _entryShift; + } +} + +class _GrowableBoolList extends BoolList { + static const int _growthFactor = 2; + + _GrowableBoolList._withCapacity(int length, int capacity) + : super._( + Uint32List(BoolList._lengthInWords(capacity)), + length, + ); + + _GrowableBoolList(int length) + : super._( + Uint32List(BoolList._lengthInWords(length * _growthFactor)), + length, + ); + + @override + set length(int length) { + RangeError.checkNotNegative(length, 'length'); + if (length > _length) { + _expand(length); + } else if (length < _length) { + _shrink(length); + } + } + + void _expand(int length) { + if (length > _data.length * BoolList._bitsPerEntry) { + _data = Uint32List( + BoolList._lengthInWords(length * _growthFactor), + )..setAll(0, _data); + } + _length = length; + } + + void _shrink(int length) { + if (length < _length ~/ _growthFactor) { + var newDataLength = BoolList._lengthInWords(length); + _data = Uint32List(newDataLength)..setRange(0, newDataLength, _data); + } + + for (var i = length; i < _data.length * BoolList._bitsPerEntry; i++) { + _setBit(i, false); + } + + _length = length; + } +} + +class _NonGrowableBoolList extends BoolList with NonGrowableListMixin { + _NonGrowableBoolList._withCapacity(int length, int capacity) + : super._( + Uint32List(BoolList._lengthInWords(capacity)), + length, + ); + + _NonGrowableBoolList(int length) + : super._( + Uint32List(BoolList._lengthInWords(length)), + length, + ); +} + +class _BoolListIterator implements Iterator { + bool _current = false; + int _pos = 0; + final int _length; + + final BoolList _boolList; + + _BoolListIterator(this._boolList) : _length = _boolList._length; + + @override + bool get current => _current; + + @override + bool moveNext() { + if (_boolList._length != _length) { + throw ConcurrentModificationError(_boolList); + } + + if (_pos < _boolList.length) { + var pos = _pos++; + _current = _boolList._data[pos >> BoolList._entryShift] & + (1 << (pos & BoolList._entrySignBitIndex)) != + 0; + return true; + } + _current = false; + return false; + } +} diff --git a/pkgs/collection/test/boollist_test.dart b/pkgs/collection/test/boollist_test.dart new file mode 100644 index 00000000..263186ce --- /dev/null +++ b/pkgs/collection/test/boollist_test.dart @@ -0,0 +1,162 @@ +// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file +// for details. All rights reserved. Use of this source code is governed by a +// BSD-style license that can be found in the LICENSE file. + +// Tests for BoolList. + +import 'package:collection/collection.dart'; +import 'package:test/test.dart'; + +void main() { + bool generator(int index) { + if (index < 512) { + return index.isEven; + } + return false; + } + + test('BoolList()', () { + expect(BoolList(1024, fill: false), List.filled(1024, false)); + + expect(BoolList(1024, fill: true), List.filled(1024, true)); + }); + + test('BoolList.empty()', () { + expect(BoolList.empty(growable: true, capacity: 1024), []); + + expect(BoolList.empty(growable: false, capacity: 1024), []); + }); + + test('BoolList.generate()', () { + expect( + BoolList.generate(1024, generator), + List.generate(1024, generator), + ); + }); + + test('BoolList.from()', () { + var src = List.generate(1024, generator); + expect(BoolList.from(src), src); + }); + + group('[], []=', () { + test('RangeError', () { + var b = BoolList(1024, fill: false); + + expect(() { + b[-1]; + }, throwsRangeError); + + expect(() { + b[1024]; + }, throwsRangeError); + }); + + test('[], []=', () { + var b = BoolList(1024, fill: false); + + bool posVal; + for (var pos = 0; pos < 1024; ++pos) { + posVal = generator(pos); + b[pos] = posVal; + expect(b[pos], posVal, reason: 'at pos $pos'); + } + }); + }); + + group('length', () { + test('shrink length', () { + var b = BoolList(1024, fill: true, growable: true); + + b.length = 768; + expect(b, List.filled(768, true)); + + b.length = 128; + expect(b, List.filled(128, true)); + + b.length = 0; + expect(b, []); + }); + + test('expand from != 0', () { + var b = BoolList(256, fill: true, growable: true); + + b.length = 384; + expect(b, List.filled(384, false)..fillRange(0, 256, true)); + + b.length = 2048; + expect(b, List.filled(2048, false)..fillRange(0, 256, true)); + }); + + test('expand from = 0', () { + var b = BoolList(0, growable: true); + expect(b.length, 0); + + b.length = 256; + expect(b, List.filled(256, false)); + }); + + test('throw UnsupportedError', () { + expect(() { + BoolList(1024).length = 512; + }, throwsUnsupportedError); + }); + }); + + group('fillRange', () { + test('In one word', () { + expect( + BoolList(1024)..fillRange(32, 64, true), + List.filled(1024, false)..fillRange(32, 64, true), + ); + + expect( + // BoolList.filled constructor isn't used due internal usage of fillRange + BoolList.generate(1024, (i) => true)..fillRange(32, 64, false), + List.filled(1024, true)..fillRange(32, 64, false), + ); + }); + + test('In several words', () { + expect( + BoolList(1024)..fillRange(32, 128, true), + List.filled(1024, false)..fillRange(32, 128, true), + ); + + expect( + // BoolList.filled constructor isn't used due internal usage of fillRange + BoolList.generate(1024, (i) => true)..fillRange(32, 128, false), + List.filled(1024, true)..fillRange(32, 128, false), + ); + }); + }); + + group('Iterator', () { + test('Iterator', () { + var b = BoolList.generate(1024, generator); + var iter = b.iterator; + + expect(iter.current, false); + for (var i = 0; i < 1024; i++) { + expect(iter.moveNext(), true); + + expect(iter.current, generator(i), reason: 'at pos $i'); + } + + expect(iter.moveNext(), false); + expect(iter.current, false); + }); + + test('throw ConcurrentModificationError', () { + var b = BoolList(1024, fill: true, growable: true); + + var iter = b.iterator; + + iter.moveNext(); + b.length = 512; + expect(() { + iter.moveNext(); + }, throwsConcurrentModificationError); + }); + }); +} From ae89a6a5cb51f7ba853f741b4875ed04d96b8c98 Mon Sep 17 00:00:00 2001 From: Konstantin Scheglov Date: Tue, 7 Sep 2021 11:02:28 -0600 Subject: [PATCH 165/235] Fix pre-existing HintCode.UNNECESSARY_TYPE_CHECK_TRUE (dart-lang/collection#206) This prepares for landing https://dart-review.googlesource.com/c/sdk/+/190360 into the analyzer. --- pkgs/collection/CHANGELOG.md | 2 ++ pkgs/collection/lib/src/equality.dart | 2 +- pkgs/collection/pubspec.yaml | 2 +- pkgs/collection/test/wrapper_test.dart | 14 ++++++-------- 4 files changed, 10 insertions(+), 10 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 0e5a4af9..00e27a26 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,5 @@ +## 1.16.1-dev + ## 1.16.0 * Use a stable sort algorithm in the `IterableExtension.sortedBy` method. diff --git a/pkgs/collection/lib/src/equality.dart b/pkgs/collection/lib/src/equality.dart index a6b464f0..88b6bb5d 100644 --- a/pkgs/collection/lib/src/equality.dart +++ b/pkgs/collection/lib/src/equality.dart @@ -67,7 +67,7 @@ class EqualityBy implements Equality { bool isValidKey(Object? o) { if (o is E) { final value = _comparisonKey(o); - return value is F && _inner.isValidKey(value); + return _inner.isValidKey(value); } return false; } diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 74f5bc3a..47c395de 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.16.0 +version: 1.16.1-dev description: Collections and utilities functions and classes related to collections. repository: https://github.com/dart-lang/collection diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index 00a2ccbf..5f03ae68 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -327,7 +327,7 @@ void main() { test('.every', () { expect(set.every((element) => element == 'foo'), isFalse); - expect(set.every((element) => element is String), isTrue); + expect(set.every((element) => true), isTrue); }); test('.expand', () { @@ -341,7 +341,7 @@ void main() { }); test('.firstWhere', () { - expect(set.firstWhere((element) => element is String), equals('foo')); + expect(set.firstWhere((element) => true), equals('foo')); expect(set.firstWhere((element) => element.startsWith('b')), equals('bar')); expect(() => set.firstWhere((element) => element is int), @@ -380,7 +380,7 @@ void main() { }); test('.lastWhere', () { - expect(set.lastWhere((element) => element is String), equals('bar')); + expect(set.lastWhere((element) => true), equals('bar')); expect( set.lastWhere((element) => element.startsWith('f')), equals('foo')); expect( @@ -403,8 +403,7 @@ void main() { expect(() => set.singleWhere((element) => element == 'baz'), throwsStateError); expect(set.singleWhere((element) => element == 'foo'), 'foo'); - expect(() => set.singleWhere((element) => element is String), - throwsStateError); + expect(() => set.singleWhere((element) => true), throwsStateError); }); test('.skip', () { @@ -418,7 +417,7 @@ void main() { equals(['bar'])); expect(set.skipWhile((element) => element.startsWith('z')), equals(['foo', 'bar'])); - expect(set.skipWhile((element) => element is String), equals([])); + expect(set.skipWhile((element) => true), equals([])); }); test('.take', () { @@ -431,8 +430,7 @@ void main() { expect(set.takeWhile((element) => element.startsWith('f')), equals(['foo'])); expect(set.takeWhile((element) => element.startsWith('z')), equals([])); - expect(set.takeWhile((element) => element is String), - equals(['foo', 'bar'])); + expect(set.takeWhile((element) => true), equals(['foo', 'bar'])); }); test('.toList', () { From 9656c1a442c7d9e55068939d354aa7df6ac00ca9 Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Tue, 7 Sep 2021 12:02:36 -0700 Subject: [PATCH 166/235] Go back to previous unpublished version (dart-lang/collection#211) --- pkgs/collection/CHANGELOG.md | 4 +--- pkgs/collection/pubspec.yaml | 4 ++-- 2 files changed, 3 insertions(+), 5 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 00e27a26..68333cb4 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,6 +1,4 @@ -## 1.16.1-dev - -## 1.16.0 +## 1.16.0-dev * Use a stable sort algorithm in the `IterableExtension.sortedBy` method. diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 47c395de..ea2a2c08 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.16.1-dev +version: 1.16.0-dev description: Collections and utilities functions and classes related to collections. repository: https://github.com/dart-lang/collection @@ -9,4 +9,4 @@ environment: dev_dependencies: lints: ^1.0.0 - test: ^1.16.0-nullsafety + test: ^1.16.0 From d8544927a1bb5066a1848e9c135dafdc44527a17 Mon Sep 17 00:00:00 2001 From: Jacob MacDonald Date: Wed, 8 Sep 2021 07:09:00 -0700 Subject: [PATCH 167/235] update deep collection tests to show the state of the world re:symmetric equality (dart-lang/collection#209) This just demonstrates the current state of the world here. We should separately investigate if we want to change the behavior or not. --- pkgs/collection/test/equality_test.dart | 59 ++++++++++++++++++++----- 1 file changed, 49 insertions(+), 10 deletions(-) diff --git a/pkgs/collection/test/equality_test.dart b/pkgs/collection/test/equality_test.dart index b2109b6d..d75a1772 100644 --- a/pkgs/collection/test/equality_test.dart +++ b/pkgs/collection/test/equality_test.dart @@ -121,6 +121,8 @@ void main() { var s1 = {...l1}; var s2 = {map2b, map2a}; + var i1 = Iterable.generate(l1.length, (i) => l1[i]); + test('RecursiveEquality', () { const unordered = UnorderedIterableEquality(); expect(unordered.equals(map1a['x'], map2a['x']), isTrue); @@ -136,16 +138,53 @@ void main() { expect(setmapval.equals(s1, s2), isTrue); }); - test('DeepEquality', () { - var colleq = const DeepCollectionEquality.unordered(); - expect(colleq.equals(map1a['x'], map2a['x']), isTrue); - expect(colleq.equals(map1a['y'], map2a['y']), isTrue); - expect(colleq.equals(map1b['x'], map2b['x']), isTrue); - expect(colleq.equals(map1b['y'], map2b['y']), isTrue); - expect(colleq.equals(map1a, map2a), isTrue); - expect(colleq.equals(map1b, map2b), isTrue); - expect(colleq.equals(l1, l2), isTrue); - expect(colleq.equals(s1, s2), isTrue); + group('DeepEquality', () { + group('unordered', () { + var colleq = const DeepCollectionEquality.unordered(); + + test('with identical collection types', () { + expect(colleq.equals(map1a['x'], map2a['x']), isTrue); + expect(colleq.equals(map1a['y'], map2a['y']), isTrue); + expect(colleq.equals(map1b['x'], map2b['x']), isTrue); + expect(colleq.equals(map1b['y'], map2b['y']), isTrue); + expect(colleq.equals(map1a, map2a), isTrue); + expect(colleq.equals(map1b, map2b), isTrue); + expect(colleq.equals(l1, l2), isTrue); + expect(colleq.equals(s1, s2), isTrue); + }); + + // TODO: https://github.com/dart-lang/collection/issues/208 + test('comparing collections and iterables', () { + expect(colleq.equals(l1, i1), isFalse); + expect(colleq.equals(i1, l1), isFalse); + expect(colleq.equals(s1, i1), isFalse); + expect(colleq.equals(i1, s1), isTrue); + }); + }); + + group('ordered', () { + var colleq = const DeepCollectionEquality(); + + test('with identical collection types', () { + expect(colleq.equals(l1, l1.toList()), isTrue); + expect(colleq.equals(s1, s1.toSet()), isTrue); + expect( + colleq.equals(map1b, map1b.map((k, v) => MapEntry(k, v))), isTrue); + expect(colleq.equals(i1, i1.map((i) => i)), isTrue); + expect(colleq.equals(map1a, map2a), isFalse); + expect(colleq.equals(map1b, map2b), isFalse); + expect(colleq.equals(l1, l2), isFalse); + expect(colleq.equals(s1, s2), isFalse); + }); + + // TODO: https://github.com/dart-lang/collection/issues/208 + test('comparing collections and iterables', () { + expect(colleq.equals(l1, i1), isFalse); + expect(colleq.equals(i1, l1), isTrue); + expect(colleq.equals(s1, i1), isFalse); + expect(colleq.equals(i1, s1), isTrue); + }); + }); }); test('CaseInsensitiveEquality', () { From c5bc27cd3e2aea206a6b0c069913346d2109ec3e Mon Sep 17 00:00:00 2001 From: fieldinrain Date: Mon, 13 Sep 2021 20:12:43 +0900 Subject: [PATCH 168/235] Fix the splitBetween example in the doc (dart-lang/collection#213) --- pkgs/collection/lib/src/iterable_extensions.dart | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/pkgs/collection/lib/src/iterable_extensions.dart b/pkgs/collection/lib/src/iterable_extensions.dart index 01af51e4..942e7af7 100644 --- a/pkgs/collection/lib/src/iterable_extensions.dart +++ b/pkgs/collection/lib/src/iterable_extensions.dart @@ -436,7 +436,7 @@ extension IterableExtension on Iterable { /// /// Example: /// ```dart - /// var parts = [1, 0, 2, 1, 5, 7, 6, 8, 9].splitBetween((i, v1, v2) => v1 > v2); + /// var parts = [1, 0, 2, 1, 5, 7, 6, 8, 9].splitBetween((v1, v2) => v1 > v2); /// print(parts); // ([1], [0, 2], [1, 5, 7], [6, 8, 9]) /// ``` Iterable> splitBetween(bool Function(T first, T second) test) => From ae7703e475ceabc213b6e1fb34dff4f288d9718b Mon Sep 17 00:00:00 2001 From: Tim Whiting Date: Mon, 13 Sep 2021 05:15:50 -0600 Subject: [PATCH 169/235] fix dart-lang/collection#189 (.max, .maxOrNull, .min, .minOrNull) for Iterable and Iterable (dart-lang/collection#212) * add .min / .max on Iterable to special case NaN and added tests * fixes dart-lang/collection#189 --- pkgs/collection/AUTHORS | 1 + pkgs/collection/CHANGELOG.md | 1 + .../lib/src/iterable_extensions.dart | 190 +++++++++++++++--- pkgs/collection/test/extensions_test.dart | 84 ++++++++ 4 files changed, 245 insertions(+), 31 deletions(-) diff --git a/pkgs/collection/AUTHORS b/pkgs/collection/AUTHORS index e8063a8c..76494b6a 100644 --- a/pkgs/collection/AUTHORS +++ b/pkgs/collection/AUTHORS @@ -4,3 +4,4 @@ # Name/Organization Google Inc. +TimWhiting tim@whitings.org diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 68333cb4..85f17ee0 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,6 +1,7 @@ ## 1.16.0-dev * Use a stable sort algorithm in the `IterableExtension.sortedBy` method. +* Add `min`, `max`, `minOrNull` and `maxOrNull` getters to `IterableDoubleExtension`, `IterableNumberExtension` and `IterableIntegerExtension` ## 1.15.0 diff --git a/pkgs/collection/lib/src/iterable_extensions.dart b/pkgs/collection/lib/src/iterable_extensions.dart index 942e7af7..fae5f8ec 100644 --- a/pkgs/collection/lib/src/iterable_extensions.dart +++ b/pkgs/collection/lib/src/iterable_extensions.dart @@ -567,7 +567,64 @@ extension IterableNullableExtension on Iterable { } /// Extensions that apply to iterables of numbers. +/// +/// Specialized version of some extensions of [IterableComparableExtension] +/// since doubles require special handling of [double.nan]. extension IterableNumberExtension on Iterable { + /// A minimal element of the iterable, or `null` it the iterable is empty. + num? get minOrNull { + var iterator = this.iterator; + if (iterator.moveNext()) { + var value = iterator.current; + if (value.isNaN) { + return value; + } + while (iterator.moveNext()) { + var newValue = iterator.current; + if (newValue.isNaN) { + return newValue; + } + if (newValue < value) { + value = newValue; + } + } + return value; + } + return null; + } + + /// A minimal element of the iterable. + /// + /// The iterable must not be empty. + num get min => minOrNull ?? (throw StateError('No element')); + + /// A maximal element of the iterable, or `null` if the iterable is empty. + num? get maxOrNull { + var iterator = this.iterator; + if (iterator.moveNext()) { + var value = iterator.current; + if (value.isNaN) { + return value; + } + while (iterator.moveNext()) { + var newValue = iterator.current; + if (newValue.isNaN) { + return newValue; + } + if (newValue > value) { + value = newValue; + } + } + return value; + } + return null; + } + + /// A maximal element of the iterable. + /// + /// The iterable must not be empty. + num get max => maxOrNull ?? (throw StateError('No element')); + /// The sum of the elements. /// /// The sum is zero if the iterable is empty. @@ -599,8 +656,51 @@ extension IterableNumberExtension on Iterable { /// Extension on iterables of integers. /// -/// Specialized version of some extensions of [IterableNumberExtension]. +/// Specialized version of some extensions of [IterableNumberExtension] or +/// [IterableComparableExtension] since integers are only `Comparable`. extension IterableIntegerExtension on Iterable { + /// A minimal element of the iterable, or `null` it the iterable is empty. + int? get minOrNull { + var iterator = this.iterator; + if (iterator.moveNext()) { + var value = iterator.current; + while (iterator.moveNext()) { + var newValue = iterator.current; + if (newValue < value) { + value = newValue; + } + } + return value; + } + return null; + } + + /// A minimal element of the iterable. + /// + /// The iterable must not be empty. + int get min => minOrNull ?? (throw StateError('No element')); + + /// A maximal element of the iterable, or `null` if the iterable is empty. + int? get maxOrNull { + var iterator = this.iterator; + if (iterator.moveNext()) { + var value = iterator.current; + while (iterator.moveNext()) { + var newValue = iterator.current; + if (newValue > value) { + value = newValue; + } + } + return value; + } + return null; + } + + /// A maximal element of the iterable. + /// + /// The iterable must not be empty. + int get max => maxOrNull ?? (throw StateError('No element')); + /// The sum of the elements. /// /// The sum is zero if the iterable is empty. @@ -641,8 +741,63 @@ extension IterableIntegerExtension on Iterable { /// Extension on iterables of double. /// -/// Specialized version of some extensions of [IterableNumberExtension]. +/// Specialized version of some extensions of [IterableNumberExtension] or +/// [IterableComparableExtension] since doubles are only `Comparable`. extension IterableDoubleExtension on Iterable { + /// A minimal element of the iterable, or `null` it the iterable is empty. + double? get minOrNull { + var iterator = this.iterator; + if (iterator.moveNext()) { + var value = iterator.current; + if (value.isNaN) { + return value; + } + while (iterator.moveNext()) { + var newValue = iterator.current; + if (newValue.isNaN) { + return newValue; + } + if (newValue < value) { + value = newValue; + } + } + return value; + } + return null; + } + + /// A minimal element of the iterable. + /// + /// The iterable must not be empty. + double get min => minOrNull ?? (throw StateError('No element')); + + /// A maximal element of the iterable, or `null` if the iterable is empty. + double? get maxOrNull { + var iterator = this.iterator; + if (iterator.moveNext()) { + var value = iterator.current; + if (value.isNaN) { + return value; + } + while (iterator.moveNext()) { + var newValue = iterator.current; + if (newValue.isNaN) { + return newValue; + } + if (newValue > value) { + value = newValue; + } + } + return value; + } + return null; + } + + /// A maximal element of the iterable. + /// + /// The iterable must not be empty. + double get max => maxOrNull ?? (throw StateError('No element')); + /// The sum of the elements. /// /// The sum is zero if the iterable is empty. @@ -689,26 +844,12 @@ extension IterableComparableExtension> on Iterable { } return value; } - return null; } /// A minimal element of the iterable. /// /// The iterable must not be empty. - T get min { - var iterator = this.iterator; - if (iterator.moveNext()) { - var value = iterator.current; - while (iterator.moveNext()) { - var newValue = iterator.current; - if (value.compareTo(newValue) > 0) { - value = newValue; - } - } - return value; - } - throw StateError('No element'); - } + T get min => minOrNull ?? (throw StateError('No element')); /// A maximal element of the iterable, or `null` if the iterable is empty. T? get maxOrNull { @@ -729,20 +870,7 @@ extension IterableComparableExtension> on Iterable { /// A maximal element of the iterable. /// /// The iterable must not be empty. - T get max { - var iterator = this.iterator; - if (iterator.moveNext()) { - var value = iterator.current; - while (iterator.moveNext()) { - var newValue = iterator.current; - if (value.compareTo(newValue) < 0) { - value = newValue; - } - } - return value; - } - throw StateError('No element'); - } + T get max => maxOrNull ?? (throw StateError('No element')); /// Creates a sorted list of the elements of the iterable. /// diff --git a/pkgs/collection/test/extensions_test.dart b/pkgs/collection/test/extensions_test.dart index 51aac9ed..741a3fdf 100644 --- a/pkgs/collection/test/extensions_test.dart +++ b/pkgs/collection/test/extensions_test.dart @@ -887,6 +887,90 @@ void main() { expect(iterable([1, 3, 5, 9]).average, 4.5); }); }); + group('.min', () { + test('empty', () { + expect(() => iterable([]).min, throwsStateError); + expect(() => iterable([]).min, throwsStateError); + expect(() => iterable([]).min, throwsStateError); + }); + test('single', () { + expect(iterable([1]).min, 1); + expect(iterable([1.0]).min, 1.0); + expect(iterable([1.0]).min, 1.0); + }); + test('multiple', () { + expect(iterable([3, 1, 2]).min, 1); + expect(iterable([3.0, 1.0, 2.5]).min, 1.0); + expect(iterable([3, 1, 2.5]).min, 1.0); + }); + test('nan', () { + expect(iterable([3.0, 1.0, double.nan]).min, isNaN); + expect(iterable([3.0, 1, double.nan]).min, isNaN); + }); + }); + group('.minOrNull', () { + test('empty', () { + expect(iterable([]).minOrNull, null); + expect(iterable([]).minOrNull, null); + expect(iterable([]).minOrNull, null); + }); + test('single', () { + expect(iterable([1]).minOrNull, 1); + expect(iterable([1.0]).minOrNull, 1.0); + expect(iterable([1.0]).minOrNull, 1.0); + }); + test('multiple', () { + expect(iterable([3, 1, 2]).minOrNull, 1); + expect(iterable([3.0, 1.0, 2.5]).minOrNull, 1.0); + expect(iterable([3, 1, 2.5]).minOrNull, 1.0); + }); + test('nan', () { + expect(iterable([3.0, 1.0, double.nan]).minOrNull, isNaN); + expect(iterable([3.0, 1, double.nan]).minOrNull, isNaN); + }); + }); + group('.max', () { + test('empty', () { + expect(() => iterable([]).max, throwsStateError); + expect(() => iterable([]).max, throwsStateError); + expect(() => iterable([]).max, throwsStateError); + }); + test('single', () { + expect(iterable([1]).max, 1); + expect(iterable([1.0]).max, 1.0); + expect(iterable([1.0]).max, 1.0); + }); + test('multiple', () { + expect(iterable([3, 1, 2]).max, 3); + expect(iterable([3.0, 1.0, 2.5]).max, 3.0); + expect(iterable([3, 1, 2.5]).max, 3); + }); + test('nan', () { + expect(iterable([3.0, 1.0, double.nan]).max, isNaN); + expect(iterable([3.0, 1, double.nan]).max, isNaN); + }); + }); + group('.maxOrNull', () { + test('empty', () { + expect(iterable([]).maxOrNull, null); + expect(iterable([]).maxOrNull, null); + expect(iterable([]).maxOrNull, null); + }); + test('single', () { + expect(iterable([1]).maxOrNull, 1); + expect(iterable([1.0]).maxOrNull, 1.0); + expect(iterable([1.0]).maxOrNull, 1.0); + }); + test('multiple', () { + expect(iterable([3, 1, 2]).maxOrNull, 3); + expect(iterable([3.0, 1.0, 2.5]).maxOrNull, 3.0); + expect(iterable([3, 1, 2.5]).maxOrNull, 3); + }); + test('nan', () { + expect(iterable([3.0, 1.0, double.nan]).maxOrNull, isNaN); + expect(iterable([3.0, 1, double.nan]).maxOrNull, isNaN); + }); + }); }); group('of iterable', () { group('.flattened', () { From efb6a82953dbec73551c7b2d69df71b260bb925c Mon Sep 17 00:00:00 2001 From: "Lasse R.H. Nielsen" Date: Mon, 13 Sep 2021 13:17:28 +0200 Subject: [PATCH 170/235] Add changelog entry for BoolList. (dart-lang/collection#210) * Add changelog entry for BoolList. * Add author to AUTHORS. * Small cleanups. * Rename `.from` constructor to `.of`, for consistency. * Still on 1.16.0-dev. --- pkgs/collection/AUTHORS | 1 + pkgs/collection/CHANGELOG.md | 1 + pkgs/collection/lib/src/boollist.dart | 38 +++++++++++++++++-------- pkgs/collection/test/boollist_test.dart | 6 ++-- 4 files changed, 31 insertions(+), 15 deletions(-) diff --git a/pkgs/collection/AUTHORS b/pkgs/collection/AUTHORS index 76494b6a..80712fdf 100644 --- a/pkgs/collection/AUTHORS +++ b/pkgs/collection/AUTHORS @@ -4,4 +4,5 @@ # Name/Organization Google Inc. +AAABramenko (https://github.com/AAAbramenko) TimWhiting tim@whitings.org diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 85f17ee0..f52dcc74 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,5 +1,6 @@ ## 1.16.0-dev +* Add `BoolList` class for space-efficient lists of boolean values. * Use a stable sort algorithm in the `IterableExtension.sortedBy` method. * Add `min`, `max`, `minOrNull` and `maxOrNull` getters to `IterableDoubleExtension`, `IterableNumberExtension` and `IterableIntegerExtension` diff --git a/pkgs/collection/lib/src/boollist.dart b/pkgs/collection/lib/src/boollist.dart index cf23b57f..5f9dba31 100644 --- a/pkgs/collection/lib/src/boollist.dart +++ b/pkgs/collection/lib/src/boollist.dart @@ -1,4 +1,4 @@ -// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file +// Copyright (c) 2021, the Dart project authors. Please see the AUTHORS file // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. @@ -17,8 +17,12 @@ abstract class BoolList with ListMixin { static const int _entrySignBitIndex = 31; + /// The length of the list. + /// + /// Maybe be shorter than the capacity of the backing store. int _length; + /// Backing store for bits. Uint32List _data; BoolList._(this._data, this._length); @@ -94,10 +98,20 @@ abstract class BoolList with ListMixin { /// /// This constructor creates a growable [BoolList] when [growable] is true; /// otherwise, it returns a fixed-length list. - factory BoolList.from(Iterable elements, {bool growable = false}) { + factory BoolList.of(Iterable elements, {bool growable = false}) { return BoolList._selectType(elements.length, growable)..setAll(0, elements); } + /// The number of boolean values in this list. + /// + /// The valid indices for a list are `0` through `length - 1`. + /// + /// If the list is growable, setting the length will change the + /// number of values. + /// Setting the length to a smaller number will remove all + /// values with indices greater than or equal to the new length. + /// Setting the length to a larger number will increase the number of + /// values, and all the new values will be `false`. @override int get length => _length; @@ -110,9 +124,9 @@ abstract class BoolList with ListMixin { } @override - void operator []=(int index, bool val) { + void operator []=(int index, bool value) { RangeError.checkValidIndex(index, this, 'index', _length); - _setBit(index, val); + _setBit(index, value); } @override @@ -145,23 +159,23 @@ abstract class BoolList with ListMixin { } } - /// Returns custom iterator for [BoolList]. + /// Creates an iterator for the elements of this [BoolList]. /// - /// To provide null safety [Iterator.current] getter of returned iterator - /// returns `false` before and after iteration process. + /// The [Iterator.current] getter of the returned iterator + /// is `false` when the iterator has no current element. @override Iterator get iterator => _BoolListIterator(this); - void _setBit(int index, bool val) { - if (val) { + void _setBit(int index, bool value) { + if (value) { _data[index >> _entryShift] |= 1 << (index & _entrySignBitIndex); } else { _data[index >> _entryShift] &= ~(1 << (index & _entrySignBitIndex)); } } - static int _lengthInWords(int bitsLength) { - return (bitsLength + (_bitsPerEntry - 1)) >> _entryShift; + static int _lengthInWords(int bitLength) { + return (bitLength + (_bitsPerEntry - 1)) >> _entryShift; } } @@ -194,7 +208,7 @@ class _GrowableBoolList extends BoolList { if (length > _data.length * BoolList._bitsPerEntry) { _data = Uint32List( BoolList._lengthInWords(length * _growthFactor), - )..setAll(0, _data); + )..setRange(0, _data.length, _data); } _length = length; } diff --git a/pkgs/collection/test/boollist_test.dart b/pkgs/collection/test/boollist_test.dart index 263186ce..0027ba79 100644 --- a/pkgs/collection/test/boollist_test.dart +++ b/pkgs/collection/test/boollist_test.dart @@ -1,4 +1,4 @@ -// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file +// Copyright (c) 2021, the Dart project authors. Please see the AUTHORS file // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. @@ -34,9 +34,9 @@ void main() { ); }); - test('BoolList.from()', () { + test('BoolList.of()', () { var src = List.generate(1024, generator); - expect(BoolList.from(src), src); + expect(BoolList.of(src), src); }); group('[], []=', () { From 8764c3f161f6ed656ebead9edca42fc888f79b70 Mon Sep 17 00:00:00 2001 From: Afsar Pasha <25363752+Afsar-Pasha@users.noreply.github.com> Date: Mon, 13 Sep 2021 12:34:45 +0000 Subject: [PATCH 171/235] Removed unnecessary nullable type in maxBy (dart-lang/collection#181) * Removed unnecessary nullable type in maxBy * Update functions_test.dart --- pkgs/collection/lib/src/functions.dart | 2 +- pkgs/collection/test/functions_test.dart | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/lib/src/functions.dart b/pkgs/collection/lib/src/functions.dart index 8e73f16a..ec5f5d83 100644 --- a/pkgs/collection/lib/src/functions.dart +++ b/pkgs/collection/lib/src/functions.dart @@ -86,7 +86,7 @@ S? minBy(Iterable values, T Function(S) orderBy, /// compared using their [Comparable.compareTo]. /// /// Returns `null` if [values] is empty. -S? maxBy(Iterable values, T Function(S?) orderBy, +S? maxBy(Iterable values, T Function(S) orderBy, {int? Function(T, T)? compare}) { compare ??= defaultCompare; diff --git a/pkgs/collection/test/functions_test.dart b/pkgs/collection/test/functions_test.dart index cffd233f..3247c69e 100644 --- a/pkgs/collection/test/functions_test.dart +++ b/pkgs/collection/test/functions_test.dart @@ -162,7 +162,7 @@ void main() { {'foo': 4}, {'foo': 1}, {'foo': 2} - ], (map) => map!, + ], (map) => map, compare: (map1, map2) => map1['foo']!.compareTo(map2['foo']!)), equals({'foo': 5})); }); From 3c7d684ed34e4d30c0fedc221bcb432c8abbaac5 Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Wed, 15 Sep 2021 09:33:02 -0700 Subject: [PATCH 172/235] Drop nullability from _UnorderedEquality generic (dart-lang/collection#215) Towards dart-lang/collection#214 The nullable `T` in `Equality` changes the assignability and introduces a difference between the other collection equality implementations and the unordered implementations. Prior to this change `SetEquality` could not be statically assigned to a `Equality>`, instead it had to be assigned to `Equality?>`, while `ListEquality` was assignable to `Equality>`. Now both are assignable. --- pkgs/collection/CHANGELOG.md | 10 +++++++++- pkgs/collection/lib/src/equality.dart | 10 +++++----- 2 files changed, 14 insertions(+), 6 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index f52dcc74..5bfa04d1 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -2,7 +2,15 @@ * Add `BoolList` class for space-efficient lists of boolean values. * Use a stable sort algorithm in the `IterableExtension.sortedBy` method. -* Add `min`, `max`, `minOrNull` and `maxOrNull` getters to `IterableDoubleExtension`, `IterableNumberExtension` and `IterableIntegerExtension` +* Add `min`, `max`, `minOrNull` and `maxOrNull` getters to + `IterableDoubleExtension`, `IterableNumberExtension` and + `IterableIntegerExtension` +* Change `UnorderedIterableEquality` and `SetEquality` to implement `Equality` + with a non-nullable generic to allows assignment to variables with that type. + Assignment to `Equality` with a nullable type is still allowed because of + covariance. The `equals` and `hash` methods continue to accept nullable + arguments. + ## 1.15.0 diff --git a/pkgs/collection/lib/src/equality.dart b/pkgs/collection/lib/src/equality.dart index 88b6bb5d..8f2d7d87 100644 --- a/pkgs/collection/lib/src/equality.dart +++ b/pkgs/collection/lib/src/equality.dart @@ -202,14 +202,14 @@ class ListEquality implements Equality> { bool isValidKey(Object? o) => o is List; } -abstract class _UnorderedEquality?> +abstract class _UnorderedEquality> implements Equality { final Equality _elementEquality; const _UnorderedEquality(this._elementEquality); @override - bool equals(T elements1, T elements2) { + bool equals(T? elements1, T? elements2) { if (identical(elements1, elements2)) return true; if (elements1 == null || elements2 == null) return false; var counts = HashMap( @@ -232,7 +232,7 @@ abstract class _UnorderedEquality?> } @override - int hash(T elements) { + int hash(T? elements) { if (elements == null) return null.hashCode; var hash = 0; for (E element in elements) { @@ -251,7 +251,7 @@ abstract class _UnorderedEquality?> /// Two iterables are considered equal if they have the same number of elements, /// and the elements of one set can be paired with the elements /// of the other iterable, so that each pair are equal. -class UnorderedIterableEquality extends _UnorderedEquality?> { +class UnorderedIterableEquality extends _UnorderedEquality> { const UnorderedIterableEquality( [Equality elementEquality = const DefaultEquality()]) : super(elementEquality); @@ -272,7 +272,7 @@ class UnorderedIterableEquality extends _UnorderedEquality?> { /// The [equals] and [hash] methods accepts `null` values, /// even if the [isValidKey] returns `false` for `null`. /// The [hash] of `null` is `null.hashCode`. -class SetEquality extends _UnorderedEquality?> { +class SetEquality extends _UnorderedEquality> { const SetEquality( [Equality elementEquality = const DefaultEquality()]) : super(elementEquality); From 36b0fe0687835672c2b8ffa2f08ae5e564623bca Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Mon, 20 Sep 2021 11:05:46 -0700 Subject: [PATCH 173/235] Restore an explicit null return (dart-lang/collection#219) This was unnecessarily removed in an unrelated change. https://github.com/dart-lang/collection/pull/218#discussion_r712148802 --- pkgs/collection/lib/src/iterable_extensions.dart | 1 + 1 file changed, 1 insertion(+) diff --git a/pkgs/collection/lib/src/iterable_extensions.dart b/pkgs/collection/lib/src/iterable_extensions.dart index fae5f8ec..3b66df10 100644 --- a/pkgs/collection/lib/src/iterable_extensions.dart +++ b/pkgs/collection/lib/src/iterable_extensions.dart @@ -844,6 +844,7 @@ extension IterableComparableExtension> on Iterable { } return value; } + return null; } /// A minimal element of the iterable. From 284b0aca0c087a17b10d30c9bce25a7221f3d5de Mon Sep 17 00:00:00 2001 From: Bob Nystrom Date: Fri, 1 Oct 2021 16:09:00 -0700 Subject: [PATCH 174/235] Change "dartfmt" -> "dart format". (dart-lang/collection#220) * Change "dartfmt" -> "dart format". * Update dartanalyzer too. --- pkgs/collection/CONTRIBUTING.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/CONTRIBUTING.md b/pkgs/collection/CONTRIBUTING.md index e88abc66..907c1ab6 100644 --- a/pkgs/collection/CONTRIBUTING.md +++ b/pkgs/collection/CONTRIBUTING.md @@ -21,8 +21,8 @@ frustration later on. All submissions, including submissions by project members, require review. ### Presubmit testing -* All code must pass analysis by the `dartanalyzer` (`dartanalyzer --fatal-warnings .`) -* All code must be formatted by `dartfmt` (`dartfmt -w .`) +* All code must pass analysis by `dart analyzer --fatal-infos`. +* All code must be formatted by `dart format`. * _NOTE_: We currently require formatting by the `dev` channel SDK. * All code must pass unit tests for the VM, Dart2JS, and DartDevC (`pub run build_runner test`). * _NOTE_: We currently use `build_runner` for compilation with DartDevC. It's From 9a78413e38b2b617fd32cb92a9dd7fcb27c8374c Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Sat, 2 Oct 2021 17:00:11 -0700 Subject: [PATCH 175/235] Fix typo in dart analyze command (dart-lang/collection#222) --- pkgs/collection/CONTRIBUTING.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/pkgs/collection/CONTRIBUTING.md b/pkgs/collection/CONTRIBUTING.md index 907c1ab6..bdf4dabd 100644 --- a/pkgs/collection/CONTRIBUTING.md +++ b/pkgs/collection/CONTRIBUTING.md @@ -21,7 +21,7 @@ frustration later on. All submissions, including submissions by project members, require review. ### Presubmit testing -* All code must pass analysis by `dart analyzer --fatal-infos`. +* All code must pass analysis by `dart analyze --fatal-infos`. * All code must be formatted by `dart format`. * _NOTE_: We currently require formatting by the `dev` channel SDK. * All code must pass unit tests for the VM, Dart2JS, and DartDevC (`pub run build_runner test`). From 0adf2c81a65c8fd6a8b00b67a32f60babaa23144 Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Mon, 4 Oct 2021 14:13:13 -0700 Subject: [PATCH 176/235] Remove unnecessary severity changes (dart-lang/collection#221) These had been put in when there were specific warnings treated as fatal in google3. Since we now treat infos as fatal its not necessary to change the severity of individual warnings. --- pkgs/collection/analysis_options.yaml | 6 ------ 1 file changed, 6 deletions(-) diff --git a/pkgs/collection/analysis_options.yaml b/pkgs/collection/analysis_options.yaml index 72e4a38a..d12202a8 100644 --- a/pkgs/collection/analysis_options.yaml +++ b/pkgs/collection/analysis_options.yaml @@ -1,10 +1,4 @@ include: package:lints/recommended.yaml -analyzer: - errors: - unused_element: error - unused_import: error - unused_local_variable: error - dead_code: error linter: rules: # Errors From 81d330049a5bf82eba7524d8ee8e49044da0260c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Albert=20Ma=C3=B1osa?= Date: Thu, 18 Nov 2021 21:21:11 +0100 Subject: [PATCH 177/235] docs: fix documentation typos (dart-lang/collection#225) --- pkgs/collection/lib/src/iterable_extensions.dart | 2 +- pkgs/collection/lib/src/list_extensions.dart | 2 +- pkgs/collection/lib/src/priority_queue.dart | 4 ++-- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/pkgs/collection/lib/src/iterable_extensions.dart b/pkgs/collection/lib/src/iterable_extensions.dart index 3b66df10..20f88306 100644 --- a/pkgs/collection/lib/src/iterable_extensions.dart +++ b/pkgs/collection/lib/src/iterable_extensions.dart @@ -300,7 +300,7 @@ extension IterableExtension on Iterable { /// /// **Notice**: This behavior differs from [Iterable.singleWhere] /// which always throws if there are more than one match, - /// and only calls the `orElse` function on zero matchs. + /// and only calls the `orElse` function on zero matches. T? singleWhereOrNull(bool Function(T element) test) { T? result; var found = false; diff --git a/pkgs/collection/lib/src/list_extensions.dart b/pkgs/collection/lib/src/list_extensions.dart index f61d6105..0952e96f 100644 --- a/pkgs/collection/lib/src/list_extensions.dart +++ b/pkgs/collection/lib/src/list_extensions.dart @@ -242,7 +242,7 @@ extension ListExtensions on List { /// Whether [other] has the same elements as this list. /// /// Returns true iff [other] has the same [length] - /// as this list, and the elemets of this list and [other] + /// as this list, and the elements of this list and [other] /// at the same indices are equal according to [equality], /// which defaults to using `==`. bool equals(List other, [Equality equality = const DefaultEquality()]) { diff --git a/pkgs/collection/lib/src/priority_queue.dart b/pkgs/collection/lib/src/priority_queue.dart index ae4ee9a2..0a6809ac 100644 --- a/pkgs/collection/lib/src/priority_queue.dart +++ b/pkgs/collection/lib/src/priority_queue.dart @@ -58,7 +58,7 @@ abstract class PriorityQueue { /// an object. bool contains(E object); - /// Provides efficient access to all the elements curently in the queue. + /// Provides efficient access to all the elements currently in the queue. /// /// The operation should be performed without copying or moving /// the elements, if at all possible. @@ -232,7 +232,7 @@ class HeapPriorityQueue implements PriorityQueue { @override bool contains(E object) => _locate(object) >= 0; - /// Provides efficient access to all the elements curently in the queue. + /// Provides efficient access to all the elements currently in the queue. /// /// The operation is performed in the order they occur /// in the underlying heap structure. From 3c3f34e8a3cc88ce0b78fdf2ebc1122c03c26ada Mon Sep 17 00:00:00 2001 From: Natalie Weizenbaum Date: Tue, 21 Dec 2021 13:33:22 -0800 Subject: [PATCH 178/235] Add an Iterable.slice() extension (dart-lang/collection#191) This also adds more efficient implementations of these for List. Inspired by Ruby's Enumerable.each_slice method. --- pkgs/collection/CHANGELOG.md | 1 + .../lib/src/iterable_extensions.dart | 20 ++++++ pkgs/collection/lib/src/list_extensions.dart | 25 +++++-- pkgs/collection/test/extensions_test.dart | 66 +++++++++++++++++++ 4 files changed, 108 insertions(+), 4 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 5bfa04d1..4cf1f64a 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,5 +1,6 @@ ## 1.16.0-dev +* Add an `Iterable.slices` extension method. * Add `BoolList` class for space-efficient lists of boolean values. * Use a stable sort algorithm in the `IterableExtension.sortedBy` method. * Add `min`, `max`, `minOrNull` and `maxOrNull` getters to diff --git a/pkgs/collection/lib/src/iterable_extensions.dart b/pkgs/collection/lib/src/iterable_extensions.dart index 20f88306..1514546e 100644 --- a/pkgs/collection/lib/src/iterable_extensions.dart +++ b/pkgs/collection/lib/src/iterable_extensions.dart @@ -549,6 +549,26 @@ extension IterableExtension on Iterable { } return true; } + + /// Contiguous [slice]s of [this] with the given [length]. + /// + /// Each slice is [length] elements long, except for the last one which may be + /// shorter if [this] contains too few elements. Each slice begins after the + /// last one ends. The [length] must be greater than zero. + /// + /// For example, `{1, 2, 3, 4, 5}.slices(2)` returns `([1, 2], [3, 4], [5])`. + Iterable> slices(int length) sync* { + if (length < 1) throw RangeError.range(length, 1, null, 'length'); + + var iterator = this.iterator; + while (iterator.moveNext()) { + var slice = [iterator.current]; + for (var i = 1; i < length && iterator.moveNext(); i++) { + slice.add(iterator.current); + } + yield slice; + } + } } /// Extensions that apply to iterables with a nullable element type. diff --git a/pkgs/collection/lib/src/list_extensions.dart b/pkgs/collection/lib/src/list_extensions.dart index 0952e96f..43d1ef3c 100644 --- a/pkgs/collection/lib/src/list_extensions.dart +++ b/pkgs/collection/lib/src/list_extensions.dart @@ -222,8 +222,8 @@ extension ListExtensions on List { /// A fixed length view of a range of this list. /// - /// The view is backed by this this list, which must not - /// change its length while the view is being used. + /// The view is backed by this list, which must not change its length while + /// the view is being used. /// /// The view can be used to perform specific whole-list /// actions on a part of the list. @@ -252,6 +252,23 @@ extension ListExtensions on List { } return true; } + + /// Contiguous [slice]s of [this] with the given [length]. + /// + /// Each slice is a view of this list [length] elements long, except for the + /// last one which may be shorter if [this] contains too few elements. Each + /// slice begins after the last one ends. + /// + /// As with [slice], these slices are backed by this list, which must not + /// change its length while the views are being used. + /// + /// For example, `[1, 2, 3, 4, 5].slices(2)` returns `[[1, 2], [3, 4], [5]]`. + Iterable> slices(int length) sync* { + if (length < 1) throw RangeError.range(length, 1, null, 'length'); + for (var i = 0; i < this.length; i += length) { + yield slice(i, min(i + length, this.length)); + } + } } /// Various extensions on lists of comparable elements. @@ -356,8 +373,8 @@ class ListSlice extends ListBase { /// A fixed length view of a range of this list. /// - /// The view is backed by this this list, which must not - /// change its length while the view is being used. + /// The view is backed by this list, which must not change its length while + /// the view is being used. /// /// The view can be used to perform specific whole-list /// actions on a part of the list. diff --git a/pkgs/collection/test/extensions_test.dart b/pkgs/collection/test/extensions_test.dart index 741a3fdf..1ccebde2 100644 --- a/pkgs/collection/test/extensions_test.dart +++ b/pkgs/collection/test/extensions_test.dart @@ -1141,6 +1141,39 @@ void main() { } }); }); + group('.slices', () { + test('empty', () { + expect(iterable([]).slices(1), []); + }); + test('with the same length as the iterable', () { + expect(iterable([1, 2, 3]).slices(3), [ + [1, 2, 3] + ]); + }); + test('with a longer length than the iterable', () { + expect(iterable([1, 2, 3]).slices(5), [ + [1, 2, 3] + ]); + }); + test('with a shorter length than the iterable', () { + expect(iterable([1, 2, 3]).slices(2), [ + [1, 2], + [3] + ]); + }); + test('with length divisible by the iterable\'s', () { + expect(iterable([1, 2, 3, 4]).slices(2), [ + [1, 2], + [3, 4] + ]); + }); + test('refuses negative length', () { + expect(() => iterable([1]).slices(-1), throwsRangeError); + }); + test('refuses length 0', () { + expect(() => iterable([1]).slices(0), throwsRangeError); + }); + }); }); group('Comparator', () { @@ -1696,6 +1729,39 @@ void main() { ['1', 'b']); }); }); + group('.slices', () { + test('empty', () { + expect([].slices(1), []); + }); + test('with the same length as the iterable', () { + expect([1, 2, 3].slices(3), [ + [1, 2, 3] + ]); + }); + test('with a longer length than the iterable', () { + expect([1, 2, 3].slices(5), [ + [1, 2, 3] + ]); + }); + test('with a shorter length than the iterable', () { + expect([1, 2, 3].slices(2), [ + [1, 2], + [3] + ]); + }); + test('with length divisible by the iterable\'s', () { + expect([1, 2, 3, 4].slices(2), [ + [1, 2], + [3, 4] + ]); + }); + test('refuses negative length', () { + expect(() => [1].slices(-1), throwsRangeError); + }); + test('refuses length 0', () { + expect(() => [1].slices(0), throwsRangeError); + }); + }); }); group('on comparable', () { group('.binarySearch', () { From 4d6899b25f9d33cdcc61cd812c7b8fbc38e46cce Mon Sep 17 00:00:00 2001 From: Devon Carew Date: Fri, 18 Feb 2022 07:35:54 -0800 Subject: [PATCH 179/235] enable the avoid_dynamic_calls lint (dart-lang/collection#232) enable the avoid_dynamic_calls lint --- pkgs/collection/CHANGELOG.md | 2 +- pkgs/collection/analysis_options.yaml | 3 +++ pkgs/collection/lib/src/equality.dart | 2 +- pkgs/collection/test/analysis_options.yaml | 6 ++++++ 4 files changed, 11 insertions(+), 2 deletions(-) create mode 100644 pkgs/collection/test/analysis_options.yaml diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 4cf1f64a..5ebe8ec5 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -11,7 +11,7 @@ Assignment to `Equality` with a nullable type is still allowed because of covariance. The `equals` and `hash` methods continue to accept nullable arguments. - +* Enable the `avoid_dynamic_calls` lint. ## 1.15.0 diff --git a/pkgs/collection/analysis_options.yaml b/pkgs/collection/analysis_options.yaml index d12202a8..a7e32927 100644 --- a/pkgs/collection/analysis_options.yaml +++ b/pkgs/collection/analysis_options.yaml @@ -1,6 +1,9 @@ include: package:lints/recommended.yaml + linter: rules: + - avoid_dynamic_calls + # Errors - test_types_in_equals - throw_in_finally diff --git a/pkgs/collection/lib/src/equality.dart b/pkgs/collection/lib/src/equality.dart index 8f2d7d87..a0db9833 100644 --- a/pkgs/collection/lib/src/equality.dart +++ b/pkgs/collection/lib/src/equality.dart @@ -212,7 +212,7 @@ abstract class _UnorderedEquality> bool equals(T? elements1, T? elements2) { if (identical(elements1, elements2)) return true; if (elements1 == null || elements2 == null) return false; - var counts = HashMap( + var counts = HashMap( equals: _elementEquality.equals, hashCode: _elementEquality.hash, isValidKey: _elementEquality.isValidKey); diff --git a/pkgs/collection/test/analysis_options.yaml b/pkgs/collection/test/analysis_options.yaml new file mode 100644 index 00000000..3d47f949 --- /dev/null +++ b/pkgs/collection/test/analysis_options.yaml @@ -0,0 +1,6 @@ +include: ../analysis_options.yaml + +# Turn off the avoid_dynamic_calls lint for the test/ directory. +analyzer: + errors: + avoid_dynamic_calls: ignore From b93ae01efe474e0320989a550287194084ed2057 Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Mon, 7 Mar 2022 10:14:58 -0800 Subject: [PATCH 180/235] Prepare to publish (dart-lang/collection#233) Drop `-dev` version suffix to publish. --- pkgs/collection/CHANGELOG.md | 2 +- pkgs/collection/pubspec.yaml | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 5ebe8ec5..61614761 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,4 +1,4 @@ -## 1.16.0-dev +## 1.16.0 * Add an `Iterable.slices` extension method. * Add `BoolList` class for space-efficient lists of boolean values. diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index ea2a2c08..ae623b8f 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.16.0-dev +version: 1.16.0 description: Collections and utilities functions and classes related to collections. repository: https://github.com/dart-lang/collection From f8952b234a26720c95d84088045e67cb0d62d5f6 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Sandro=20Lovni=C4=8Dki?= Date: Fri, 8 Apr 2022 03:38:31 -0700 Subject: [PATCH 181/235] Add a comment about NaN in min/max extensions (dart-lang/collection#234) * Add a comment about the treatment of NaN in `min`/`max` extensions on number types. --- pkgs/collection/lib/src/iterable_extensions.dart | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/pkgs/collection/lib/src/iterable_extensions.dart b/pkgs/collection/lib/src/iterable_extensions.dart index 1514546e..ac821121 100644 --- a/pkgs/collection/lib/src/iterable_extensions.dart +++ b/pkgs/collection/lib/src/iterable_extensions.dart @@ -592,6 +592,8 @@ extension IterableNullableExtension on Iterable { /// since doubles require special handling of [double.nan]. extension IterableNumberExtension on Iterable { /// A minimal element of the iterable, or `null` it the iterable is empty. + /// + /// If any element is [NaN](double.nan), the result is NaN. num? get minOrNull { var iterator = this.iterator; if (iterator.moveNext()) { @@ -615,10 +617,14 @@ extension IterableNumberExtension on Iterable { /// A minimal element of the iterable. /// + /// If any element is [NaN](double.nan), the result is NaN. + /// /// The iterable must not be empty. num get min => minOrNull ?? (throw StateError('No element')); /// A maximal element of the iterable, or `null` if the iterable is empty. + /// + /// If any element is [NaN](double.nan), the result is NaN. num? get maxOrNull { var iterator = this.iterator; if (iterator.moveNext()) { @@ -642,6 +648,8 @@ extension IterableNumberExtension on Iterable { /// A maximal element of the iterable. /// + /// If any element is [NaN](double.nan), the result is NaN. + /// /// The iterable must not be empty. num get max => maxOrNull ?? (throw StateError('No element')); @@ -765,6 +773,8 @@ extension IterableIntegerExtension on Iterable { /// [IterableComparableExtension] since doubles are only `Comparable`. extension IterableDoubleExtension on Iterable { /// A minimal element of the iterable, or `null` it the iterable is empty. + /// + /// If any element is [NaN](double.nan), the result is NaN. double? get minOrNull { var iterator = this.iterator; if (iterator.moveNext()) { @@ -788,10 +798,14 @@ extension IterableDoubleExtension on Iterable { /// A minimal element of the iterable. /// + /// If any element is [NaN](double.nan), the result is NaN. + /// /// The iterable must not be empty. double get min => minOrNull ?? (throw StateError('No element')); /// A maximal element of the iterable, or `null` if the iterable is empty. + /// + /// If any element is [NaN](double.nan), the result is NaN. double? get maxOrNull { var iterator = this.iterator; if (iterator.moveNext()) { @@ -815,6 +829,8 @@ extension IterableDoubleExtension on Iterable { /// A maximal element of the iterable. /// + /// If any element is [NaN](double.nan), the result is NaN. + /// /// The iterable must not be empty. double get max => maxOrNull ?? (throw StateError('No element')); From 37902cff53fdd1c5ed96f7ad17406f0bcc1429c3 Mon Sep 17 00:00:00 2001 From: Enrico Zamagni Date: Fri, 8 Apr 2022 13:23:45 +0200 Subject: [PATCH 182/235] fixed maxBy compare param signature (dart-lang/collection#224) --- pkgs/collection/lib/src/functions.dart | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/lib/src/functions.dart b/pkgs/collection/lib/src/functions.dart index ec5f5d83..64a38eec 100644 --- a/pkgs/collection/lib/src/functions.dart +++ b/pkgs/collection/lib/src/functions.dart @@ -87,14 +87,14 @@ S? minBy(Iterable values, T Function(S) orderBy, /// /// Returns `null` if [values] is empty. S? maxBy(Iterable values, T Function(S) orderBy, - {int? Function(T, T)? compare}) { + {int Function(T, T)? compare}) { compare ??= defaultCompare; S? maxValue; T? maxOrderBy; for (var element in values) { var elementOrderBy = orderBy(element); - if (maxOrderBy == null || compare(elementOrderBy, maxOrderBy)! > 0) { + if (maxOrderBy == null || compare(elementOrderBy, maxOrderBy) > 0) { maxValue = element; maxOrderBy = elementOrderBy; } From be3f88a2d19c67fd3df55788c4d7959e5ef7a60d Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Fri, 8 Apr 2022 14:31:13 -0700 Subject: [PATCH 183/235] Fix analysis issue with latest dev release (dart-lang/collection#236) --- pkgs/collection/test/functions_test.dart | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/pkgs/collection/test/functions_test.dart b/pkgs/collection/test/functions_test.dart index 3247c69e..97bb4abb 100644 --- a/pkgs/collection/test/functions_test.dart +++ b/pkgs/collection/test/functions_test.dart @@ -136,7 +136,7 @@ void main() { test('returns null for an empty iterable', () { expect( maxBy([], expectAsync1((dynamic _) {}, count: 0), - compare: expectAsync2((dynamic _, dynamic __) => null, count: 0)), + compare: expectAsync2((dynamic _, dynamic __) => 0, count: 0)), isNull); }); From dd54d2f762ae3310da0f9cb243cf2e4ea40634ec Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Wed, 25 May 2022 07:52:34 -0700 Subject: [PATCH 184/235] Add complexity bound on binary search methods (dart-lang/collection#239) Closes dart-lang/collection#237 In each of the list extensions that mention "Uses binary search" add a sentence documenting that the search takes `log(n)` comparisons. Add a sentence about using binary search and the runtime to the top level algorithm methods. --- pkgs/collection/CHANGELOG.md | 2 ++ pkgs/collection/lib/src/algorithms.dart | 4 ++++ pkgs/collection/lib/src/list_extensions.dart | 8 ++++++++ pkgs/collection/pubspec.yaml | 2 +- 4 files changed, 15 insertions(+), 1 deletion(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 61614761..806a8b0b 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,5 @@ +## 1.16.1-dev + ## 1.16.0 * Add an `Iterable.slices` extension method. diff --git a/pkgs/collection/lib/src/algorithms.dart b/pkgs/collection/lib/src/algorithms.dart index 820d32bb..eb9e1de3 100644 --- a/pkgs/collection/lib/src/algorithms.dart +++ b/pkgs/collection/lib/src/algorithms.dart @@ -57,6 +57,8 @@ int binarySearchBy(List sortedList, K Function(E element) keyOf, /// Returns the first position in [sortedList] that does not compare less than /// [value]. /// +/// Uses binary search to find the location of [value]. +/// This takes on the order of `log(n)` comparisons. /// If the list isn't sorted according to the [compare] function, the result /// is unpredictable. /// @@ -72,6 +74,8 @@ int lowerBound(List sortedList, E value, {int Function(E, E)? compare}) { /// Returns the first position in [sortedList] that is not before [value]. /// +/// Uses binary search to find the location of [value]. +/// This takes on the order of `log(n)` comparisons. /// Elements are compared using the [compare] function of the [keyOf] property of /// the elements. /// If the list isn't sorted according to this order, the result is unpredictable. diff --git a/pkgs/collection/lib/src/list_extensions.dart b/pkgs/collection/lib/src/list_extensions.dart index 43d1ef3c..4d6ae3f1 100644 --- a/pkgs/collection/lib/src/list_extensions.dart +++ b/pkgs/collection/lib/src/list_extensions.dart @@ -16,6 +16,7 @@ extension ListExtensions on List { /// Returns the index of [element] in this sorted list. /// /// Uses binary search to find the location of [element]. + /// This takes on the order of `log(n)` comparisons. /// The list *must* be sorted according to [compare], /// otherwise the result is unspecified /// @@ -26,6 +27,7 @@ extension ListExtensions on List { /// Returns the index of [element] in this sorted list. /// /// Uses binary search to find the location of [element]. + /// This takes on the order of `log(n)` comparisons. /// The list *must* be sorted according to [compare] on the [keyOf] of elements, /// otherwise the result is unspecified. /// @@ -42,6 +44,7 @@ extension ListExtensions on List { /// Returns the index of [element] in this sorted list. /// /// Uses binary search to find the location of [element]. + /// This takes on the order of `log(n)` comparisons. /// The list *must* be sorted according to the natural ordering of /// the [keyOf] of elements, otherwise the result is unspecified. /// @@ -57,6 +60,7 @@ extension ListExtensions on List { /// Returns the index where [element] should be in this sorted list. /// /// Uses binary search to find the location of [element]. + /// This takes on the order of `log(n)` comparisons. /// The list *must* be sorted according to [compare], /// otherwise the result is unspecified. /// @@ -71,6 +75,7 @@ extension ListExtensions on List { /// Returns the index where [element] should be in this sorted list. /// /// Uses binary search to find the location of [element]. + /// This takes on the order of `log(n)` comparisons. /// The list *must* be sorted according to [compare] of /// the [keyOf] of the elements, otherwise the result is unspecified. /// @@ -90,6 +95,7 @@ extension ListExtensions on List { /// Returns the index where [element] should be in this sorted list. /// /// Uses binary search to find the location of [element]. + /// This takes on the order of `log(n)` comparisons. /// The list *must* be sorted according to the /// natural ordering of the [keyOf] of the elements, /// otherwise the result is unspecified. @@ -276,6 +282,7 @@ extension ListComparableExtensions> on List { /// Returns the index of [element] in this sorted list. /// /// Uses binary search to find the location of [element]. + /// This takes on the order of `log(n)` comparisons. /// The list *must* be sorted according to [compare], /// otherwise the result is unspecified. /// If [compare] is omitted, it uses the natural order of the elements. @@ -288,6 +295,7 @@ extension ListComparableExtensions> on List { /// Returns the index where [element] should be in this sorted list. /// /// Uses binary search to find the location of where [element] should be. + /// This takes on the order of `log(n)` comparisons. /// The list *must* be sorted according to [compare], /// otherwise the result is unspecified. /// If [compare] is omitted, it uses the natural order of the elements. diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index ae623b8f..436a1e1b 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.16.0 +version: 1.16.1-dev description: Collections and utilities functions and classes related to collections. repository: https://github.com/dart-lang/collection From 6fd19ed4eb2cd9adabd678a76e49982907eca9ab Mon Sep 17 00:00:00 2001 From: Marc Plano-Lesay Date: Fri, 3 Jun 2022 08:46:11 +1000 Subject: [PATCH 185/235] Introduce a new lastBy() function (dart-lang/collection#223) Similar to groupBy(), except that it only keeps the latest value corresponding to a given key. Prior art: [Kotlin](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.sequences/associate-by.html) --- pkgs/collection/CHANGELOG.md | 4 ++++ pkgs/collection/lib/src/functions.dart | 7 +++++++ .../lib/src/iterable_extensions.dart | 7 +++++++ pkgs/collection/test/extensions_test.dart | 19 ++++++++++++++++++ pkgs/collection/test/functions_test.dart | 20 +++++++++++++++++++ 5 files changed, 57 insertions(+) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 806a8b0b..f36e987f 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,5 +1,9 @@ ## 1.16.1-dev +* Add a top-level `lastBy()` function that converts an `Iterable` to a `Map` by + grouping its elements using a function, keeping the last element for each + computed key. Also available as an extension method on `Iterable`. + ## 1.16.0 * Add an `Iterable.slices` extension method. diff --git a/pkgs/collection/lib/src/functions.dart b/pkgs/collection/lib/src/functions.dart index 64a38eec..8f60b265 100644 --- a/pkgs/collection/lib/src/functions.dart +++ b/pkgs/collection/lib/src/functions.dart @@ -41,6 +41,13 @@ Map mergeMaps(Map map1, Map map2, return result; } +/// Associates the elements in [values] by the value returned by [key]. +/// +/// Returns a map from keys computed by [key] to the last value for which [key] +/// returns that key. +Map lastBy(Iterable values, T Function(S) key) => + {for (var element in values) key(element): element}; + /// Groups the elements in [values] by the value returned by [key]. /// /// Returns a map from keys computed by [key] to a list of all values for which diff --git a/pkgs/collection/lib/src/iterable_extensions.dart b/pkgs/collection/lib/src/iterable_extensions.dart index ac821121..88f320dd 100644 --- a/pkgs/collection/lib/src/iterable_extensions.dart +++ b/pkgs/collection/lib/src/iterable_extensions.dart @@ -7,6 +7,7 @@ import 'dart:math' show Random; import 'package:collection/src/utils.dart'; import 'algorithms.dart'; +import 'functions.dart' as functions; /// Extensions that apply to all iterables. /// @@ -353,6 +354,12 @@ extension IterableExtension on Iterable { return null; } + /// Associates the elements in [this] by the value returned by [key]. + /// + /// Returns a map from keys computed by [key] to the last value for which [key] + /// returns that key. + Map lastBy(K Function(T) key) => functions.lastBy(this, key); + /// Groups elements by [keyOf] then folds the elements in each group. /// /// A key is found for each element using [keyOf]. diff --git a/pkgs/collection/test/extensions_test.dart b/pkgs/collection/test/extensions_test.dart index 1ccebde2..ce4b2e92 100644 --- a/pkgs/collection/test/extensions_test.dart +++ b/pkgs/collection/test/extensions_test.dart @@ -520,6 +520,25 @@ void main() { expect(iterable([1, 3, 5]).singleOrNull, null); }); }); + group('.lastBy', () { + test('empty', () { + expect(iterable([]).lastBy((dynamic _) {}), {}); + }); + test('single', () { + expect(iterable([1]).lastBy(toString), { + '1': 1, + }); + }); + test('multiple', () { + expect( + iterable([1, 2, 3, 4, 5]).lastBy((x) => x.isEven), + { + false: 5, + true: 4, + }, + ); + }); + }); group('.groupFoldBy', () { test('empty', () { expect(iterable([]).groupFoldBy(unreachable, unreachable), {}); diff --git a/pkgs/collection/test/functions_test.dart b/pkgs/collection/test/functions_test.dart index 97bb4abb..9d41625e 100644 --- a/pkgs/collection/test/functions_test.dart +++ b/pkgs/collection/test/functions_test.dart @@ -79,6 +79,26 @@ void main() { }); }); + group('lastBy()', () { + test('returns an empty map for an empty iterable', () { + expect( + lastBy([], (_) => fail("Must not be called for empty input")), + isEmpty, + ); + }); + + test("keeps the latest element for the function's return value", () { + expect( + lastBy(['foo', 'bar', 'baz', 'bop', 'qux'], + (String string) => string[1]), + equals({ + 'o': 'bop', + 'a': 'baz', + 'u': 'qux', + })); + }); + }); + group('groupBy()', () { test('returns an empty map for an empty iterable', () { expect(groupBy([], expectAsync1((dynamic _) {}, count: 0)), isEmpty); From 3e6a0aa963a7d04a76925a173886d703f188182b Mon Sep 17 00:00:00 2001 From: Yuxiang Liu Date: Fri, 3 Jun 2022 23:19:45 +0800 Subject: [PATCH 186/235] Add elementAtOrNull extensions (dart-lang/collection#217) Add extensions on List and Iterable to read an element without risk of exceptions. --- pkgs/collection/CHANGELOG.md | 4 ++- .../lib/src/iterable_extensions.dart | 11 +++++++ pkgs/collection/lib/src/list_extensions.dart | 11 +++++++ pkgs/collection/pubspec.yaml | 2 +- pkgs/collection/test/extensions_test.dart | 29 +++++++++++++++++++ 5 files changed, 55 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index f36e987f..ea92e11f 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,4 +1,6 @@ -## 1.16.1-dev +## 1.17.0-dev + +* Add `Iterable.elementAtOrNull` and `List.elementAtOrNull` extension methods. * Add a top-level `lastBy()` function that converts an `Iterable` to a `Map` by grouping its elements using a function, keeping the last element for each diff --git a/pkgs/collection/lib/src/iterable_extensions.dart b/pkgs/collection/lib/src/iterable_extensions.dart index 88f320dd..3af5124a 100644 --- a/pkgs/collection/lib/src/iterable_extensions.dart +++ b/pkgs/collection/lib/src/iterable_extensions.dart @@ -354,6 +354,17 @@ extension IterableExtension on Iterable { return null; } + /// The [index]th element, or `null` if there is no such element. + /// + /// Returns the element at position [index] of this iterable, + /// just like [elementAt], if this iterable has such an element. + /// If this iterable does not have enough elements to have one with the given + /// [index], the `null` value is returned, unlike [elementAt] which throws + /// instead. + /// + /// The [index] must not be negative. + T? elementAtOrNull(int index) => skip(index).firstOrNull; + /// Associates the elements in [this] by the value returned by [key]. /// /// Returns a map from keys computed by [key] to the last value for which [key] diff --git a/pkgs/collection/lib/src/list_extensions.dart b/pkgs/collection/lib/src/list_extensions.dart index 4d6ae3f1..4bb719aa 100644 --- a/pkgs/collection/lib/src/list_extensions.dart +++ b/pkgs/collection/lib/src/list_extensions.dart @@ -259,6 +259,17 @@ extension ListExtensions on List { return true; } + /// The [index]th element, or `null` if there is no such element. + /// + /// Returns the element at position [index] of this list, + /// just like [elementAt], if this list has such an element. + /// If this list does not have enough elements to have one with the given + /// [index], the `null` value is returned, unlike [elementAt] which throws + /// instead. + /// + /// The [index] must not be negative. + E? elementAtOrNull(int index) => (index < length) ? this[index] : null; + /// Contiguous [slice]s of [this] with the given [length]. /// /// Each slice is a view of this list [length] elements long, except for the diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 436a1e1b..07a5fa1d 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.16.1-dev +version: 1.17.0-dev description: Collections and utilities functions and classes related to collections. repository: https://github.com/dart-lang/collection diff --git a/pkgs/collection/test/extensions_test.dart b/pkgs/collection/test/extensions_test.dart index ce4b2e92..31bb458c 100644 --- a/pkgs/collection/test/extensions_test.dart +++ b/pkgs/collection/test/extensions_test.dart @@ -1160,6 +1160,21 @@ void main() { } }); }); + group('.elementAtOrNull', () { + test('empty', () async { + expect(iterable([]).elementAtOrNull(0), isNull); + }); + test('negative index', () async { + expect(() => iterable([1]).elementAtOrNull(-1), + throwsA(isA())); + }); + test('index within range', () async { + expect(iterable([1]).elementAtOrNull(0), 1); + }); + test('index too high', () async { + expect(iterable([1]).elementAtOrNull(1), isNull); + }); + }); group('.slices', () { test('empty', () { expect(iterable([]).slices(1), []); @@ -1748,6 +1763,20 @@ void main() { ['1', 'b']); }); }); + group('.elementAtOrNull', () { + test('empty', () async { + expect([].elementAtOrNull(0), isNull); + }); + test('negative index', () async { + expect(() => [1].elementAtOrNull(-1), throwsA(isA())); + }); + test('index within range', () async { + expect([1].elementAtOrNull(0), 1); + }); + test('index too high', () async { + expect([1].elementAtOrNull(1), isNull); + }); + }); group('.slices', () { test('empty', () { expect([].slices(1), []); From 9ae2769ce3a6f9735b410c9c483cbaaa0b0e5616 Mon Sep 17 00:00:00 2001 From: Devon Carew Date: Fri, 7 Oct 2022 15:51:36 -0700 Subject: [PATCH 187/235] update CI config; prep for publishing (dart-lang/collection#251) --- pkgs/collection/.github/dependabot.yaml | 8 ++++++++ pkgs/collection/.github/workflows/ci.yml | 8 ++++---- pkgs/collection/CHANGELOG.md | 3 +-- pkgs/collection/README.md | 4 ++++ pkgs/collection/pubspec.yaml | 3 +-- 5 files changed, 18 insertions(+), 8 deletions(-) create mode 100644 pkgs/collection/.github/dependabot.yaml diff --git a/pkgs/collection/.github/dependabot.yaml b/pkgs/collection/.github/dependabot.yaml new file mode 100644 index 00000000..21448193 --- /dev/null +++ b/pkgs/collection/.github/dependabot.yaml @@ -0,0 +1,8 @@ +# Dependabot configuration file. +version: 2 + +updates: + - package-ecosystem: "github-actions" + directory: "/" + schedule: + interval: "monthly" diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index f1fd21e0..6f230c17 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -21,8 +21,8 @@ jobs: matrix: sdk: [dev] steps: - - uses: actions/checkout@v2 - - uses: dart-lang/setup-dart@v1.0 + - uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 + - uses: dart-lang/setup-dart@6a218f2413a3e78e9087f638a238f6b40893203d with: sdk: ${{ matrix.sdk }} - id: install @@ -48,8 +48,8 @@ jobs: os: [ubuntu-latest] sdk: [2.12.0, dev] steps: - - uses: actions/checkout@v2 - - uses: dart-lang/setup-dart@v1.0 + - uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 + - uses: dart-lang/setup-dart@6a218f2413a3e78e9087f638a238f6b40893203d with: sdk: ${{ matrix.sdk }} - id: install diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index ea92e11f..a3ce6381 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,7 +1,6 @@ -## 1.17.0-dev +## 1.17.0 * Add `Iterable.elementAtOrNull` and `List.elementAtOrNull` extension methods. - * Add a top-level `lastBy()` function that converts an `Iterable` to a `Map` by grouping its elements using a function, keeping the last element for each computed key. Also available as an extension method on `Iterable`. diff --git a/pkgs/collection/README.md b/pkgs/collection/README.md index e7bd21d7..9f66acf5 100644 --- a/pkgs/collection/README.md +++ b/pkgs/collection/README.md @@ -1,3 +1,7 @@ +[![Dart CI](https://github.com/dart-lang/collection/actions/workflows/ci.yml/badge.svg)](https://github.com/dart-lang/collection/actions/workflows/ci.yml) +[![pub package](https://img.shields.io/pub/v/collection.svg)](https://pub.dev/packages/collection) +[![package publisher](https://img.shields.io/pub/publisher/collection.svg)](https://pub.dev/packages/collection/publisher) + Contains utility functions and classes in the style of `dart:collection` to make working with collections easier. diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 07a5fa1d..50c30bf2 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,6 +1,5 @@ name: collection -version: 1.17.0-dev - +version: 1.17.0 description: Collections and utilities functions and classes related to collections. repository: https://github.com/dart-lang/collection From 4ace9800f951e3e603238939d9a838a52eb42398 Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Tue, 18 Oct 2022 18:36:34 -0700 Subject: [PATCH 188/235] Fix doc comment references among other new lints (dart-lang/collection#253) Bump min SDK to 2.18 --- pkgs/collection/.github/workflows/ci.yml | 2 +- pkgs/collection/CHANGELOG.md | 4 + pkgs/collection/analysis_options.yaml | 29 +++-- pkgs/collection/lib/src/algorithms.dart | 26 ++-- pkgs/collection/lib/src/boollist.dart | 5 +- .../collection/lib/src/canonicalized_map.dart | 2 +- .../combined_wrappers/combined_iterable.dart | 2 +- .../src/combined_wrappers/combined_list.dart | 2 +- .../src/combined_wrappers/combined_map.dart | 6 +- .../lib/src/empty_unmodifiable_set.dart | 5 +- pkgs/collection/lib/src/equality.dart | 9 +- .../lib/src/iterable_extensions.dart | 24 ++-- pkgs/collection/lib/src/list_extensions.dart | 16 +-- pkgs/collection/lib/src/priority_queue.dart | 6 +- pkgs/collection/lib/src/queue_list.dart | 2 +- pkgs/collection/lib/src/union_set.dart | 2 +- .../lib/src/union_set_controller.dart | 6 +- .../lib/src/unmodifiable_wrappers.dart | 4 +- pkgs/collection/lib/src/wrappers.dart | 48 +++---- pkgs/collection/pubspec.yaml | 6 +- pkgs/collection/test/algorithms_test.dart | 4 +- pkgs/collection/test/boollist_test.dart | 6 +- pkgs/collection/test/equality_test.dart | 5 +- pkgs/collection/test/functions_test.dart | 117 +++++++++--------- pkgs/collection/test/priority_queue_test.dart | 22 ++-- pkgs/collection/test/wrapper_test.dart | 23 ++-- 26 files changed, 204 insertions(+), 179 deletions(-) diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index 6f230c17..824e77b0 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -46,7 +46,7 @@ jobs: matrix: # Add macos-latest and/or windows-latest if relevant for this package. os: [ubuntu-latest] - sdk: [2.12.0, dev] + sdk: [2.18.0, dev] steps: - uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 - uses: dart-lang/setup-dart@6a218f2413a3e78e9087f638a238f6b40893203d diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index a3ce6381..72eb4a82 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.17.1-dev + +* Require Dart 2.18 + ## 1.17.0 * Add `Iterable.elementAtOrNull` and `List.elementAtOrNull` extension methods. diff --git a/pkgs/collection/analysis_options.yaml b/pkgs/collection/analysis_options.yaml index a7e32927..ea2d1c47 100644 --- a/pkgs/collection/analysis_options.yaml +++ b/pkgs/collection/analysis_options.yaml @@ -1,14 +1,29 @@ include: package:lints/recommended.yaml +analyzer: + language: + strict-casts: true + linter: rules: + - always_declare_return_types - avoid_dynamic_calls - - # Errors + - avoid_unused_constructor_parameters + - cancel_subscriptions + - directives_ordering + - lines_longer_than_80_chars + - literal_only_boolean_expressions + - missing_whitespace_between_adjacent_strings + - no_adjacent_strings_in_list + - no_runtimeType_toString + - omit_local_variable_types + - package_api_docs + - prefer_relative_imports + - prefer_single_quotes - test_types_in_equals - throw_in_finally - - # Style - - avoid_private_typedef_functions - - directives_ordering - - only_throw_errors + - type_annotate_public_apis + - unawaited_futures + - unnecessary_await_in_return + - unnecessary_lambdas + - use_super_parameters diff --git a/pkgs/collection/lib/src/algorithms.dart b/pkgs/collection/lib/src/algorithms.dart index eb9e1de3..5833bbd1 100644 --- a/pkgs/collection/lib/src/algorithms.dart +++ b/pkgs/collection/lib/src/algorithms.dart @@ -65,8 +65,8 @@ int binarySearchBy(List sortedList, K Function(E element) keyOf, /// If [compare] is omitted, this defaults to calling [Comparable.compareTo] on /// the objects. In this case, the objects must be [Comparable]. /// -/// Returns [sortedList.length] if all the items in [sortedList] compare less -/// than [value]. +/// Returns the length of [sortedList] if all the items in [sortedList] compare +/// less than [value]. int lowerBound(List sortedList, E value, {int Function(E, E)? compare}) { compare ??= defaultCompare; return lowerBoundBy(sortedList, identity, compare, value); @@ -76,11 +76,13 @@ int lowerBound(List sortedList, E value, {int Function(E, E)? compare}) { /// /// Uses binary search to find the location of [value]. /// This takes on the order of `log(n)` comparisons. -/// Elements are compared using the [compare] function of the [keyOf] property of -/// the elements. -/// If the list isn't sorted according to this order, the result is unpredictable. +/// Elements are compared using the [compare] function of the [keyOf] property +/// of the elements. +/// If the list isn't sorted according to this order, the result is +/// unpredictable. /// -/// Returns [sortedList.length] if all the items in [sortedList] are before [value]. +/// Returns the length of [sortedList] if all the items in [sortedList] are +/// before [value]. /// /// If [start] and [end] are supplied, only that range is searched, /// and only that range need to be sorted. @@ -231,12 +233,12 @@ void mergeSort(List elements, var secondLength = end - middle; // secondLength is always the same as firstLength, or one greater. var scratchSpace = List.filled(secondLength, elements[start]); - E Function(E) id = identity; - _mergeSort(elements, id, compare, middle, end, scratchSpace, 0); + _mergeSort(elements, identity, compare, middle, end, scratchSpace, 0); var firstTarget = end - firstLength; - _mergeSort(elements, id, compare, start, middle, elements, firstTarget); - _merge(id, compare, elements, firstTarget, end, scratchSpace, 0, secondLength, - elements, start); + _mergeSort( + elements, identity, compare, start, middle, elements, firstTarget); + _merge(identity, compare, elements, firstTarget, end, scratchSpace, 0, + secondLength, elements, start); } /// Sort [elements] using a merge-sort algorithm. @@ -408,7 +410,7 @@ void quickSort(List elements, int Function(E a, E b) compare, _quickSort(elements, identity, compare, Random(), start, end); } -/// Sort [elements] using a quick-sort algorithm. +/// Sort [list] using a quick-sort algorithm. /// /// The elements are compared using [compare] on the value provided by [keyOf] /// on the element. diff --git a/pkgs/collection/lib/src/boollist.dart b/pkgs/collection/lib/src/boollist.dart index 5f9dba31..3ce9cf25 100644 --- a/pkgs/collection/lib/src/boollist.dart +++ b/pkgs/collection/lib/src/boollist.dart @@ -74,8 +74,9 @@ abstract class BoolList with ListMixin { /// Generates a [BoolList] of values. /// - /// Creates a [BoolList] with [length] positions and fills it with values created by - /// calling [generator] for each index in the range `0` .. `length - 1` in increasing order. + /// Creates a [BoolList] with [length] positions and fills it with values + /// created by calling [generator] for each index in the range + /// `0` .. `length - 1` in increasing order. /// /// The created list is fixed-length unless [growable] is true. factory BoolList.generate( diff --git a/pkgs/collection/lib/src/canonicalized_map.dart b/pkgs/collection/lib/src/canonicalized_map.dart index de63908a..dcb07cf4 100644 --- a/pkgs/collection/lib/src/canonicalized_map.dart +++ b/pkgs/collection/lib/src/canonicalized_map.dart @@ -129,7 +129,7 @@ class CanonicalizedMap implements Map { void removeWhere(bool Function(K key, V value) test) => _base.removeWhere((_, pair) => test(pair.key, pair.value)); - @Deprecated("Use cast instead") + @Deprecated('Use cast instead') Map retype() => cast(); @override diff --git a/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart b/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart index 97d843f2..281f8a28 100644 --- a/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart +++ b/pkgs/collection/lib/src/combined_wrappers/combined_iterable.dart @@ -17,7 +17,7 @@ class CombinedIterableView extends IterableBase { /// The iterables that this combines. final Iterable> _iterables; - /// Creates a combined view of [iterables]. + /// Creates a combined view of [_iterables]. const CombinedIterableView(this._iterables); @override diff --git a/pkgs/collection/lib/src/combined_wrappers/combined_list.dart b/pkgs/collection/lib/src/combined_wrappers/combined_list.dart index c9a2eb8a..f0cd4476 100644 --- a/pkgs/collection/lib/src/combined_wrappers/combined_list.dart +++ b/pkgs/collection/lib/src/combined_wrappers/combined_list.dart @@ -24,7 +24,7 @@ class CombinedListView extends ListBase /// The lists that this combines. final List> _lists; - /// Creates a combined view of [lists]. + /// Creates a combined view of [_lists]. CombinedListView(this._lists); @override diff --git a/pkgs/collection/lib/src/combined_wrappers/combined_map.dart b/pkgs/collection/lib/src/combined_wrappers/combined_map.dart index ae720068..18db6e7e 100644 --- a/pkgs/collection/lib/src/combined_wrappers/combined_map.dart +++ b/pkgs/collection/lib/src/combined_wrappers/combined_map.dart @@ -40,11 +40,11 @@ class CombinedMapView extends UnmodifiableMapBase { return null; } - /// The keys of [this]. + /// The keys of `this`. /// /// The returned iterable has efficient `contains` operations, assuming the - /// iterables returned by the wrapped maps have efficient `contains` operations - /// for their `keys` iterables. + /// iterables returned by the wrapped maps have efficient `contains` + /// operations for their `keys` iterables. /// /// The `length` must do deduplication and thus is not optimized. /// diff --git a/pkgs/collection/lib/src/empty_unmodifiable_set.dart b/pkgs/collection/lib/src/empty_unmodifiable_set.dart index ed442ca5..12e6f4f5 100644 --- a/pkgs/collection/lib/src/empty_unmodifiable_set.dart +++ b/pkgs/collection/lib/src/empty_unmodifiable_set.dart @@ -4,7 +4,8 @@ import 'dart:collection'; -import 'package:collection/collection.dart'; +import 'unmodifiable_wrappers.dart'; +import 'wrappers.dart'; /// An unmodifiable, empty set which can be constant. class EmptyUnmodifiableSet extends IterableBase @@ -26,7 +27,7 @@ class EmptyUnmodifiableSet extends IterableBase Iterable followedBy(Iterable other) => DelegatingIterable(other); @override E? lookup(Object? element) => null; - @Deprecated("Use cast instead") + @Deprecated('Use cast instead') @override EmptyUnmodifiableSet retype() => EmptyUnmodifiableSet(); @override diff --git a/pkgs/collection/lib/src/equality.dart b/pkgs/collection/lib/src/equality.dart index a0db9833..826446d8 100644 --- a/pkgs/collection/lib/src/equality.dart +++ b/pkgs/collection/lib/src/equality.dart @@ -253,8 +253,7 @@ abstract class _UnorderedEquality> /// of the other iterable, so that each pair are equal. class UnorderedIterableEquality extends _UnorderedEquality> { const UnorderedIterableEquality( - [Equality elementEquality = const DefaultEquality()]) - : super(elementEquality); + [super.elementEquality = const DefaultEquality()]); @override bool isValidKey(Object? o) => o is Iterable; @@ -273,9 +272,7 @@ class UnorderedIterableEquality extends _UnorderedEquality> { /// even if the [isValidKey] returns `false` for `null`. /// The [hash] of `null` is `null.hashCode`. class SetEquality extends _UnorderedEquality> { - const SetEquality( - [Equality elementEquality = const DefaultEquality()]) - : super(elementEquality); + const SetEquality([super.elementEquality = const DefaultEquality()]); @override bool isValidKey(Object? o) => o is Set; @@ -437,7 +434,7 @@ class DeepCollectionEquality implements Equality { _unordered = true; @override - bool equals(e1, e2) { + bool equals(Object? e1, Object? e2) { if (e1 is Set) { return e2 is Set && SetEquality(this).equals(e1, e2); } diff --git a/pkgs/collection/lib/src/iterable_extensions.dart b/pkgs/collection/lib/src/iterable_extensions.dart index 3af5124a..376f4504 100644 --- a/pkgs/collection/lib/src/iterable_extensions.dart +++ b/pkgs/collection/lib/src/iterable_extensions.dart @@ -4,10 +4,9 @@ import 'dart:math' show Random; -import 'package:collection/src/utils.dart'; - import 'algorithms.dart'; import 'functions.dart' as functions; +import 'utils.dart'; /// Extensions that apply to all iterables. /// @@ -365,18 +364,19 @@ extension IterableExtension on Iterable { /// The [index] must not be negative. T? elementAtOrNull(int index) => skip(index).firstOrNull; - /// Associates the elements in [this] by the value returned by [key]. + /// Associates the elements in `this` by the value returned by [key]. /// - /// Returns a map from keys computed by [key] to the last value for which [key] - /// returns that key. + /// Returns a map from keys computed by [key] to the last value for which + /// [key] returns that key. Map lastBy(K Function(T) key) => functions.lastBy(this, key); /// Groups elements by [keyOf] then folds the elements in each group. /// /// A key is found for each element using [keyOf]. /// Then the elements with the same key are all folded using [combine]. - /// The first call to [combine] for a particular key receives [null] as - /// the previous value, the remaining ones receive the result of the previous call. + /// The first call to [combine] for a particular key receives `null` as + /// the previous value, the remaining ones receive the result of the previous + /// call. /// /// Can be used to _group_ elements into arbitrary collections. /// For example [groupSetsBy] could be written as: @@ -431,7 +431,8 @@ extension IterableExtension on Iterable { /// Splits the elements into chunks before some elements. /// - /// Each element is checked using [test] for whether it should start a new chunk. + /// Each element is checked using [test] for whether it should start a new + /// chunk. /// If so, the elements since the previous chunk-starting element /// are emitted as a list. /// Any final elements are emitted at the end. @@ -504,7 +505,8 @@ extension IterableExtension on Iterable { /// /// Example: /// ```dart - /// var parts = [1, 0, 2, 1, 5, 7, 6, 8, 9].splitAfterIndexed((i, v) => i < v); + /// var parts = [1, 0, 2, 1, 5, 7, 6, 8, 9] + /// .splitAfterIndexed((i, v) => i < v); /// print(parts); // ([1, 0], [2, 1], [5, 7, 6], [8, 9]) /// ``` Iterable> splitAfterIndexed( @@ -568,10 +570,10 @@ extension IterableExtension on Iterable { return true; } - /// Contiguous [slice]s of [this] with the given [length]. + /// Contiguous slices of `this` with the given [length]. /// /// Each slice is [length] elements long, except for the last one which may be - /// shorter if [this] contains too few elements. Each slice begins after the + /// shorter if `this` contains too few elements. Each slice begins after the /// last one ends. The [length] must be greater than zero. /// /// For example, `{1, 2, 3, 4, 5}.slices(2)` returns `([1, 2], [3, 4], [5])`. diff --git a/pkgs/collection/lib/src/list_extensions.dart b/pkgs/collection/lib/src/list_extensions.dart index 4bb719aa..5ab2c8bc 100644 --- a/pkgs/collection/lib/src/list_extensions.dart +++ b/pkgs/collection/lib/src/list_extensions.dart @@ -28,13 +28,13 @@ extension ListExtensions on List { /// /// Uses binary search to find the location of [element]. /// This takes on the order of `log(n)` comparisons. - /// The list *must* be sorted according to [compare] on the [keyOf] of elements, - /// otherwise the result is unspecified. + /// The list *must* be sorted according to [compare] on the [keyOf] of + /// elements, otherwise the result is unspecified. /// /// Returns -1 if [element] does not occur in this list. /// - /// If [start] and [end] are supplied, only the list range from [start] to [end] - /// is searched, and only that range needs to be sorted. + /// If [start] and [end] are supplied, only the list range from [start] to + /// [end] is searched, and only that range needs to be sorted. int binarySearchByCompare( E element, K Function(E element) keyOf, int Function(K, K) compare, [int start = 0, int? end]) => @@ -50,8 +50,8 @@ extension ListExtensions on List { /// /// Returns -1 if [element] does not occur in this list. /// - /// If [start] and [end] are supplied, only the list range from [start] to [end] - /// is searched, and only that range needs to be sorted. + /// If [start] and [end] are supplied, only the list range from [start] to + /// [end] is searched, and only that range needs to be sorted. int binarySearchBy>( E element, K Function(E element) keyOf, [int start = 0, int? end]) => algorithms.binarySearchBy( @@ -270,10 +270,10 @@ extension ListExtensions on List { /// The [index] must not be negative. E? elementAtOrNull(int index) => (index < length) ? this[index] : null; - /// Contiguous [slice]s of [this] with the given [length]. + /// Contiguous [slice]s of `this` with the given [length]. /// /// Each slice is a view of this list [length] elements long, except for the - /// last one which may be shorter if [this] contains too few elements. Each + /// last one which may be shorter if `this` contains too few elements. Each /// slice begins after the last one ends. /// /// As with [slice], these slices are backed by this list, which must not diff --git a/pkgs/collection/lib/src/priority_queue.dart b/pkgs/collection/lib/src/priority_queue.dart index 0a6809ac..11b0348a 100644 --- a/pkgs/collection/lib/src/priority_queue.dart +++ b/pkgs/collection/lib/src/priority_queue.dart @@ -52,7 +52,7 @@ abstract class PriorityQueue { /// Uses the [Object.==] of elements in the queue to check /// for whether they are equal to [object]. /// Equal objects objects must have the same priority - /// according to the [comparison] function. + /// according to the comparison function. /// That is, if `a == b` then `comparison(a, b) == 0`. /// If that is not the case, this check might fail to find /// an object. @@ -88,7 +88,7 @@ abstract class PriorityQueue { /// /// Repeatedly calling this method, without adding element in between, /// is guaranteed to return elements in non-decreasing order as, specified by - /// [comparison]. + /// the `comparison` constructor parameter. /// /// The queue must not be empty when this method is called. E removeFirst(); @@ -104,7 +104,7 @@ abstract class PriorityQueue { /// Uses the [Object.==] of elements in the queue to check /// for whether they are equal to [element]. /// Equal objects objects must have the same priority - /// according to the [comparison] function. + /// according to the `comparison` function. /// That is, if `a == b` then `comparison(a, b) == 0`. /// If that is not the case, this check might fail to find /// an object. diff --git a/pkgs/collection/lib/src/queue_list.dart b/pkgs/collection/lib/src/queue_list.dart index f013723c..a3eaba13 100644 --- a/pkgs/collection/lib/src/queue_list.dart +++ b/pkgs/collection/lib/src/queue_list.dart @@ -115,7 +115,7 @@ class QueueList extends Object with ListMixin implements Queue { QueueList cast() => QueueList._castFrom(this); - @Deprecated("Use cast instead") + @Deprecated('Use cast instead') QueueList retype() => cast(); @override diff --git a/pkgs/collection/lib/src/union_set.dart b/pkgs/collection/lib/src/union_set.dart index 37aee483..a34d7ad3 100644 --- a/pkgs/collection/lib/src/union_set.dart +++ b/pkgs/collection/lib/src/union_set.dart @@ -36,7 +36,7 @@ class UnionSet extends SetBase with UnmodifiableSetMixin { /// Creates a new set that's a view of the union of all sets in [sets]. /// /// If any sets in [sets] change, this [UnionSet] reflects that change. - /// However, unlike [new UnionSet], this creates a copy of its parameter, so + /// However, unlike [UnionSet.new], this creates a copy of its parameter, so /// changes in [sets] aren't reflected in this [UnionSet]. /// /// If [disjoint] is `true`, then all component sets must be disjoint. That diff --git a/pkgs/collection/lib/src/union_set_controller.dart b/pkgs/collection/lib/src/union_set_controller.dart index ea3622a9..498528e2 100644 --- a/pkgs/collection/lib/src/union_set_controller.dart +++ b/pkgs/collection/lib/src/union_set_controller.dart @@ -22,7 +22,7 @@ import 'union_set.dart'; /// } /// ``` class UnionSetController { - /// The [UnionSet] that provides a view of the union of sets in [this]. + /// The [UnionSet] that provides a view of the union of sets in `this`. final UnionSet set; /// The sets whose union is exposed through [set]. @@ -32,7 +32,7 @@ class UnionSetController { /// /// If [disjoint] is `true`, this assumes that all component sets are /// disjoint—that is, that they contain no elements in common. This makes - /// many operations including [length] more efficient. + /// many operations including `length` more efficient. UnionSetController({bool disjoint = false}) : this._(>{}, disjoint); /// Creates a controller with the provided [_sets]. @@ -49,7 +49,7 @@ class UnionSetController { /// Removes the contents of [component] to [set]. /// - /// If another set in [this] has overlapping elements with [component], those + /// If another set in `this` has overlapping elements with [component], those /// elements will remain in [set]. bool remove(Set component) => _sets.remove(component); } diff --git a/pkgs/collection/lib/src/unmodifiable_wrappers.dart b/pkgs/collection/lib/src/unmodifiable_wrappers.dart index c6cf2cd7..4305644d 100644 --- a/pkgs/collection/lib/src/unmodifiable_wrappers.dart +++ b/pkgs/collection/lib/src/unmodifiable_wrappers.dart @@ -20,7 +20,7 @@ export 'dart:collection' show UnmodifiableListView, UnmodifiableMapView; /// Permitted operations defer to the wrapped list. class NonGrowableListView extends DelegatingList with NonGrowableListMixin { - NonGrowableListView(List listBase) : super(listBase); + NonGrowableListView(super.listBase); } /// Mixin class that implements a throwing version of all list operations that @@ -105,7 +105,7 @@ abstract class NonGrowableListMixin implements List { /// Permitted operations defer to the wrapped set. class UnmodifiableSetView extends DelegatingSet with UnmodifiableSetMixin { - UnmodifiableSetView(Set setBase) : super(setBase); + UnmodifiableSetView(super.setBase); /// An unmodifiable empty set. /// diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index e3803509..8b2c3d7a 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -79,7 +79,7 @@ abstract class _DelegatingIterableBase implements Iterable { @override E reduce(E Function(E value, E element) combine) => _base.reduce(combine); - @Deprecated("Use cast instead") + @Deprecated('Use cast instead') Iterable retype() => cast(); @override @@ -137,7 +137,7 @@ class DelegatingIterable extends _DelegatingIterableBase { /// they're accessed. If they're not, it throws a [CastError]. /// /// This forwards all operations to [base], so any changes in [base] will be - /// reflected in [this]. If [base] is already an `Iterable`, it's returned + /// reflected in `this`. If [base] is already an `Iterable`, it's returned /// unmodified. @Deprecated('Use iterable.cast instead.') static Iterable typed(Iterable base) => base.cast(); @@ -163,7 +163,7 @@ class DelegatingList extends _DelegatingIterableBase implements List { /// collection. /// /// This forwards all operations to [base], so any changes in [base] will be - /// reflected in [this]. If [base] is already a `List`, it's returned + /// reflected in `this`. If [base] is already a `List`, it's returned /// unmodified. @Deprecated('Use list.cast instead.') static List typed(List base) => base.cast(); @@ -278,7 +278,7 @@ class DelegatingList extends _DelegatingIterableBase implements List { _base.retainWhere(test); } - @Deprecated("Use cast instead") + @Deprecated('Use cast instead') @override List retype() => cast(); @@ -328,7 +328,7 @@ class DelegatingSet extends _DelegatingIterableBase implements Set { /// collection. /// /// This forwards all operations to [base], so any changes in [base] will be - /// reflected in [this]. If [base] is already a `Set`, it's returned + /// reflected in `this`. If [base] is already a `Set`, it's returned /// unmodified. @Deprecated('Use set.cast instead.') static Set typed(Set base) => base.cast(); @@ -379,7 +379,7 @@ class DelegatingSet extends _DelegatingIterableBase implements Set { _base.retainAll(elements); } - @Deprecated("Use cast instead") + @Deprecated('Use cast instead') @override Set retype() => cast(); @@ -416,7 +416,7 @@ class DelegatingQueue extends _DelegatingIterableBase /// collection. /// /// This forwards all operations to [base], so any changes in [base] will be - /// reflected in [this]. If [base] is already a `Queue`, it's returned + /// reflected in `this`. If [base] is already a `Queue`, it's returned /// unmodified. @Deprecated('Use queue.cast instead.') static Queue typed(Queue base) => base.cast(); @@ -462,7 +462,7 @@ class DelegatingQueue extends _DelegatingIterableBase _base.retainWhere(test); } - @Deprecated("Use cast instead") + @Deprecated('Use cast instead') @override Queue retype() => cast(); @@ -492,7 +492,7 @@ class DelegatingMap implements Map { /// the underlying collection. /// /// This forwards all operations to [base], so any changes in [base] will be - /// reflected in [this]. If [base] is already a `Map`, it's returned + /// reflected in `this`. If [base] is already a `Map`, it's returned /// unmodified. @Deprecated('Use map.cast instead.') static Map typed(Map base) => base.cast(); @@ -563,7 +563,7 @@ class DelegatingMap implements Map { @override void removeWhere(bool Function(K, V) test) => _base.removeWhere(test); - @Deprecated("Use cast instead") + @Deprecated('Use cast instead') Map retype() => cast(); @override @@ -624,24 +624,24 @@ class MapKeySet extends _DelegatingIterableBase @override bool containsAll(Iterable other) => other.every(contains); - /// Returns a new set with the the elements of [this] that are not in [other]. + /// Returns a new set with the the elements of `this` that are not in [other]. /// /// That is, the returned set contains all the elements of this [Set] that are /// not elements of [other] according to `other.contains`. /// /// Note that the returned set will use the default equality operation, which - /// may be different than the equality operation [this] uses. + /// may be different than the equality operation `this` uses. @override Set difference(Set other) => where((element) => !other.contains(element)).toSet(); - /// Returns a new set which is the intersection between [this] and [other]. + /// Returns a new set which is the intersection between `this` and [other]. /// /// That is, the returned set contains all the elements of this [Set] that are /// also elements of [other] according to `other.contains`. /// /// Note that the returned set will use the default equality operation, which - /// may be different than the equality operation [this] uses. + /// may be different than the equality operation `this` uses. @override Set intersection(Set other) => where(other.contains).toSet(); @@ -651,17 +651,17 @@ class MapKeySet extends _DelegatingIterableBase E lookup(Object? element) => throw UnsupportedError("MapKeySet doesn't support lookup()."); - @Deprecated("Use cast instead") + @Deprecated('Use cast instead') @override Set retype() => Set.castFrom(this); - /// Returns a new set which contains all the elements of [this] and [other]. + /// Returns a new set which contains all the elements of `this` and [other]. /// /// That is, the returned set contains all the elements of this [Set] and all /// the elements of [other]. /// /// Note that the returned set will use the default equality operation, which - /// may be different than the equality operation [this] uses. + /// may be different than the equality operation `this` uses. @override Set union(Set other) => toSet()..addAll(other); } @@ -749,24 +749,24 @@ class MapValueSet extends _DelegatingIterableBase implements Set { @override bool containsAll(Iterable other) => other.every(contains); - /// Returns a new set with the the elements of [this] that are not in [other]. + /// Returns a new set with the the elements of `this` that are not in [other]. /// /// That is, the returned set contains all the elements of this [Set] that are /// not elements of [other] according to `other.contains`. /// /// Note that the returned set will use the default equality operation, which - /// may be different than the equality operation [this] uses. + /// may be different than the equality operation `this` uses. @override Set difference(Set other) => where((element) => !other.contains(element)).toSet(); - /// Returns a new set which is the intersection between [this] and [other]. + /// Returns a new set which is the intersection between `this` and [other]. /// /// That is, the returned set contains all the elements of this [Set] that are /// also elements of [other] according to `other.contains`. /// /// Note that the returned set will use the default equality operation, which - /// may be different than the equality operation [this] uses. + /// may be different than the equality operation `this` uses. @override Set intersection(Set other) => where(other.contains).toSet(); @@ -822,17 +822,17 @@ class MapValueSet extends _DelegatingIterableBase implements Set { void retainWhere(bool Function(V) test) => removeWhere((element) => !test(element)); - @Deprecated("Use cast instead") + @Deprecated('Use cast instead') @override Set retype() => Set.castFrom(this); - /// Returns a new set which contains all the elements of [this] and [other]. + /// Returns a new set which contains all the elements of `this` and [other]. /// /// That is, the returned set contains all the elements of this [Set] and all /// the elements of [other]. /// /// Note that the returned set will use the default equality operation, which - /// may be different than the equality operation [this] uses. + /// may be different than the equality operation `this` uses. @override Set union(Set other) => toSet()..addAll(other); } diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 50c30bf2..14ab46d6 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,11 +1,11 @@ name: collection -version: 1.17.0 +version: 1.17.1-dev description: Collections and utilities functions and classes related to collections. repository: https://github.com/dart-lang/collection environment: - sdk: ">=2.12.0 <3.0.0" + sdk: ">=2.18.0 <3.0.0" dev_dependencies: - lints: ^1.0.0 + lints: ^2.0.0 test: ^1.16.0 diff --git a/pkgs/collection/test/algorithms_test.dart b/pkgs/collection/test/algorithms_test.dart index 0c604635..c2ffb7f2 100644 --- a/pkgs/collection/test/algorithms_test.dart +++ b/pkgs/collection/test/algorithms_test.dart @@ -32,7 +32,7 @@ void main() { var l = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]; var c = l.toList(); var count = 0; - do { + for (;;) { shuffle(l); if (!const ListEquality().equals(c, l)) return; // Odds of not changing the order should be one in ~ 16! ~= 2e+13. @@ -42,7 +42,7 @@ void main() { // If this happens even once, it's ok to report it. print('Failed shuffle $count times'); if (count == 10) fail("Shuffle didn't change order."); - } while (true); + } }); test('Shuffle sublist', () { var l = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]; diff --git a/pkgs/collection/test/boollist_test.dart b/pkgs/collection/test/boollist_test.dart index 0027ba79..aa9e3982 100644 --- a/pkgs/collection/test/boollist_test.dart +++ b/pkgs/collection/test/boollist_test.dart @@ -111,7 +111,8 @@ void main() { ); expect( - // BoolList.filled constructor isn't used due internal usage of fillRange + // BoolList.filled constructor isn't used due internal usage of + // fillRange BoolList.generate(1024, (i) => true)..fillRange(32, 64, false), List.filled(1024, true)..fillRange(32, 64, false), ); @@ -124,7 +125,8 @@ void main() { ); expect( - // BoolList.filled constructor isn't used due internal usage of fillRange + // BoolList.filled constructor isn't used due internal usage of + // fillRange BoolList.generate(1024, (i) => true)..fillRange(32, 128, false), List.filled(1024, true)..fillRange(32, 128, false), ); diff --git a/pkgs/collection/test/equality_test.dart b/pkgs/collection/test/equality_test.dart index d75a1772..4786b407 100644 --- a/pkgs/collection/test/equality_test.dart +++ b/pkgs/collection/test/equality_test.dart @@ -168,8 +168,7 @@ void main() { test('with identical collection types', () { expect(colleq.equals(l1, l1.toList()), isTrue); expect(colleq.equals(s1, s1.toSet()), isTrue); - expect( - colleq.equals(map1b, map1b.map((k, v) => MapEntry(k, v))), isTrue); + expect(colleq.equals(map1b, map1b.map(MapEntry.new)), isTrue); expect(colleq.equals(i1, i1.map((i) => i)), isTrue); expect(colleq.equals(map1a, map2a), isFalse); expect(colleq.equals(map1b, map2b), isFalse); @@ -279,5 +278,5 @@ class Element implements Comparable { @override bool operator ==(Object other) => other is Element && id == other.id; @override - int compareTo(other) => id.compareTo(other.id); + int compareTo(Element other) => id.compareTo(other.id); } diff --git a/pkgs/collection/test/functions_test.dart b/pkgs/collection/test/functions_test.dart index 9d41625e..359265c1 100644 --- a/pkgs/collection/test/functions_test.dart +++ b/pkgs/collection/test/functions_test.dart @@ -82,7 +82,7 @@ void main() { group('lastBy()', () { test('returns an empty map for an empty iterable', () { expect( - lastBy([], (_) => fail("Must not be called for empty input")), + lastBy([], (_) => fail('Must not be called for empty input')), isEmpty, ); }); @@ -280,25 +280,26 @@ void main() { test('returns individual vertices for a tree', () { expect( - stronglyConnectedComponents({ - 'foo': ['bar'], - 'bar': ['baz', 'bang'], - 'baz': ['qux'], - 'bang': ['zap'], - 'qux': [], - 'zap': [] - }), - equals([ - // This is expected to return *a* topological ordering, but this isn't - // the only valid one. If the function implementation changes in the - // future, this test may need to be updated. - {'foo'}, - {'bar'}, - {'bang'}, - {'zap'}, - {'baz'}, - {'qux'} - ])); + stronglyConnectedComponents({ + 'foo': ['bar'], + 'bar': ['baz', 'bang'], + 'baz': ['qux'], + 'bang': ['zap'], + 'qux': [], + 'zap': [] + }), + equals([ + // This is expected to return *a* topological ordering, but this isn't + // the only valid one. If the function implementation changes in the + // future, this test may need to be updated. + {'foo'}, + {'bar'}, + {'bang'}, + {'zap'}, + {'baz'}, + {'qux'} + ]), + ); }); test('returns a single set for a fully cyclic graph', () { @@ -317,47 +318,49 @@ void main() { test('returns separate sets for each strongly connected component', () { // https://en.wikipedia.org/wiki/Strongly_connected_component#/media/File:Scc.png expect( - stronglyConnectedComponents({ - 'a': ['b'], - 'b': ['c', 'e', 'f'], - 'c': ['d', 'g'], - 'd': ['c', 'h'], - 'e': ['a', 'f'], - 'f': ['g'], - 'g': ['f'], - 'h': ['g', 'd'] - }), - equals([ - // This is expected to return *a* topological ordering, but this isn't - // the only valid one. If the function implementation changes in the - // future, this test may need to be updated. - {'a', 'b', 'e'}, - {'c', 'd', 'h'}, - {'f', 'g'}, - ])); + stronglyConnectedComponents({ + 'a': ['b'], + 'b': ['c', 'e', 'f'], + 'c': ['d', 'g'], + 'd': ['c', 'h'], + 'e': ['a', 'f'], + 'f': ['g'], + 'g': ['f'], + 'h': ['g', 'd'] + }), + equals([ + // This is expected to return *a* topological ordering, but this isn't + // the only valid one. If the function implementation changes in the + // future, this test may need to be updated. + {'a', 'b', 'e'}, + {'c', 'd', 'h'}, + {'f', 'g'}, + ]), + ); }); test('always returns components in topological order', () { expect( - stronglyConnectedComponents({ - 'bar': ['baz', 'bang'], - 'zap': [], - 'baz': ['qux'], - 'qux': [], - 'foo': ['bar'], - 'bang': ['zap'] - }), - equals([ - // This is expected to return *a* topological ordering, but this isn't - // the only valid one. If the function implementation changes in the - // future, this test may need to be updated. - {'foo'}, - {'bar'}, - {'bang'}, - {'zap'}, - {'baz'}, - {'qux'} - ])); + stronglyConnectedComponents({ + 'bar': ['baz', 'bang'], + 'zap': [], + 'baz': ['qux'], + 'qux': [], + 'foo': ['bar'], + 'bang': ['zap'] + }), + equals([ + // This is expected to return *a* topological ordering, but this isn't + // the only valid one. If the function implementation changes in the + // future, this test may need to be updated. + {'foo'}, + {'bar'}, + {'bang'}, + {'zap'}, + {'baz'}, + {'qux'} + ]), + ); }); }); } diff --git a/pkgs/collection/test/priority_queue_test.dart b/pkgs/collection/test/priority_queue_test.dart index ce0f88e0..96e2c154 100644 --- a/pkgs/collection/test/priority_queue_test.dart +++ b/pkgs/collection/test/priority_queue_test.dart @@ -8,8 +8,8 @@ import 'package:test/test.dart'; void main() { testDefault(); - testInt(() => HeapPriorityQueue()); - testCustom((comparator) => HeapPriorityQueue(comparator)); + testInt(HeapPriorityQueue.new); + testCustom(HeapPriorityQueue.new); testDuplicates(); testNullable(); testConcurrentModification(); @@ -19,8 +19,8 @@ void testDefault() { test('PriorityQueue() returns a HeapPriorityQueue', () { expect(PriorityQueue(), TypeMatcher>()); }); - testInt(() => PriorityQueue()); - testCustom((comparator) => PriorityQueue(comparator)); + testInt(PriorityQueue.new); + testCustom(PriorityQueue.new); } void testInt(PriorityQueue Function() create) { @@ -33,9 +33,9 @@ void testCustom( PriorityQueue Function(int Function(C, C)? comparator) create) { for (var count in [1, 5, 127, 128]) { testQueue('Custom:$count/null', () => create(null), - List.generate(count, (x) => C(x)), C(count)); + List.generate(count, C.new), C(count)); testQueue('Custom:$count/compare', () => create(compare), - List.generate(count, (x) => C(x)), C(count)); + List.generate(count, C.new), C(count)); testQueue('Custom:$count/compareNeg', () => create(compareNeg), List.generate(count, (x) => C(count - x)), C(0)); } @@ -44,13 +44,17 @@ void testCustom( /// Test that a queue behaves correctly. /// /// The elements must be in priority order, from highest to lowest. -void testQueue( - String name, PriorityQueue Function() create, List elements, notElement) { +void testQueue( + String name, + PriorityQueue Function() create, + List elements, + T notElement, +) { test(name, () => testQueueBody(create, elements, notElement)); } void testQueueBody( - PriorityQueue Function() create, List elements, notElement) { + PriorityQueue Function() create, List elements, T notElement) { var q = create(); expect(q.isEmpty, isTrue); expect(q, hasLength(0)); diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index 5f03ae68..c9785e8e 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -84,29 +84,24 @@ final toStringInvocation = Invocation.method(#toString, const []); // argument to DelegatingIterable/Set/List/Queue. class IterableInvocationChecker extends InvocationChecker implements Iterable { - IterableInvocationChecker(Invocation expected, InstanceMirror mirror) - : super(expected, mirror); + IterableInvocationChecker(super.expected, super.mirror); } class ListInvocationChecker extends InvocationChecker implements List { - ListInvocationChecker(Invocation expected, InstanceMirror mirror) - : super(expected, mirror); + ListInvocationChecker(super.expected, super.mirror); } class SetInvocationChecker extends InvocationChecker implements Set { - SetInvocationChecker(Invocation expected, InstanceMirror mirror) - : super(expected, mirror); + SetInvocationChecker(super.expected, super.mirror); } class QueueInvocationChecker extends InvocationChecker implements Queue { - QueueInvocationChecker(Invocation expected, InstanceMirror mirror) - : super(expected, mirror); + QueueInvocationChecker(super.expected, super.mirror); } class MapInvocationChecker extends InvocationChecker implements Map { - MapInvocationChecker(Invocation expected, InstanceMirror mirror) - : super(expected, mirror); + MapInvocationChecker(super.expected, super.mirror); } // Expector that wraps in DelegatingIterable. @@ -123,7 +118,7 @@ class IterableExpector extends Expector implements Iterable { // Expector that wraps in DelegatingList. class ListExpector extends IterableExpector implements List { - ListExpector(List realInstance) : super(realInstance); + ListExpector(List super.realInstance); @override dynamic wrappedChecker(Invocation i) => @@ -132,7 +127,7 @@ class ListExpector extends IterableExpector implements List { // Expector that wraps in DelegatingSet. class SetExpector extends IterableExpector implements Set { - SetExpector(Set realInstance) : super(realInstance); + SetExpector(Set super.realInstance); @override dynamic wrappedChecker(Invocation i) => @@ -141,7 +136,7 @@ class SetExpector extends IterableExpector implements Set { // Expector that wraps in DelegatingSet. class QueueExpector extends IterableExpector implements Queue { - QueueExpector(Queue realInstance) : super(realInstance); + QueueExpector(Queue super.realInstance); @override dynamic wrappedChecker(Invocation i) => @@ -169,7 +164,7 @@ bool boolFunc(dynamic x) => true; Iterable expandFunc(dynamic x) => [x]; dynamic foldFunc(dynamic previous, dynamic next) => previous; int compareFunc(dynamic x, dynamic y) => 0; -var val = 10; +int val = 10; void main() { void testIterable(IterableExpector expect) { From fe6e8d16423a81c2b99bdb13d72e48eec2765ae2 Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Mon, 28 Nov 2022 10:58:01 -0800 Subject: [PATCH 189/235] Tweak docs for split extensions (dart-lang/collection#256) - Fix the doc for `splitAfter` to use "after" instead of "before". - Expand the details for the "after" methods with a more explicit mention of how the element that satisfies the predicate is the last value in it's sublist. - Use the same input for the example in `splitBefore` as `splitAFter` so that the distinction is more clear. - Use "remaining elements" instead of "final elements". --- pkgs/collection/CHANGELOG.md | 1 + .../lib/src/iterable_extensions.dart | 30 ++++++++++--------- 2 files changed, 17 insertions(+), 14 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 72eb4a82..39cf42f3 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,6 +1,7 @@ ## 1.17.1-dev * Require Dart 2.18 +* Improve docs for `splitAfter` and `splitBefore`. ## 1.17.0 diff --git a/pkgs/collection/lib/src/iterable_extensions.dart b/pkgs/collection/lib/src/iterable_extensions.dart index 376f4504..7772622c 100644 --- a/pkgs/collection/lib/src/iterable_extensions.dart +++ b/pkgs/collection/lib/src/iterable_extensions.dart @@ -415,27 +415,28 @@ extension IterableExtension on Iterable { /// Splits the elements into chunks before some elements. /// /// Each element except the first is checked using [test] - /// for whether it should start a new chunk. + /// for whether it should be the first element in a new chunk. /// If so, the elements since the previous chunk-starting element /// are emitted as a list. - /// Any final elements are emitted at the end. + /// Any remaining elements are emitted at the end. /// /// Example: /// Example: /// ```dart - /// var parts = [1, 2, 3, 4, 5, 6, 7, 8, 9].split(isPrime); - /// print(parts); // ([1], [2], [3, 4], [5, 6], [7, 8, 9]) + /// var parts = [1, 0, 2, 1, 5, 7, 6, 8, 9].splitBefore(isPrime); + /// print(parts); // ([1, 0], [2, 1], [5], [7, 6, 8, 9]) /// ``` Iterable> splitBefore(bool Function(T element) test) => splitBeforeIndexed((_, element) => test(element)); - /// Splits the elements into chunks before some elements. + /// Splits the elements into chunks after some elements. /// - /// Each element is checked using [test] for whether it should start a new - /// chunk. - /// If so, the elements since the previous chunk-starting element + /// Each element is checked using [test] for whether it should end a chunk. + /// If so, the elements following the previous chunk-ending element, + /// including the element that satisfied [test], /// are emitted as a list. - /// Any final elements are emitted at the end. + /// Any remaining elements are emitted at the end, + /// whether the last element should be split after or not. /// /// Example: /// ```dart @@ -451,7 +452,7 @@ extension IterableExtension on Iterable { /// for whether a chunk should end between them. /// If so, the elements since the previous chunk-splitting elements /// are emitted as a list. - /// Any final elements are emitted at the end. + /// Any remaining elements are emitted at the end. /// /// Example: /// ```dart @@ -467,7 +468,7 @@ extension IterableExtension on Iterable { /// for whether it should start a new chunk. /// If so, the elements since the previous chunk-starting element /// are emitted as a list. - /// Any final elements are emitted at the end. + /// Any remaining elements are emitted at the end. /// /// Example: /// ```dart @@ -498,9 +499,10 @@ extension IterableExtension on Iterable { /// /// Each element and index is checked using [test] /// for whether it should end the current chunk. - /// If so, the elements since the previous chunk-ending element + /// If so, the elements since the previous chunk-ending element, + /// includeing the elemenent that satisfied [test], /// are emitted as a list. - /// Any final elements are emitted at the end, whether the last + /// Any remaining elements are emitted at the end, whether the last /// element should be split after or not. /// /// Example: @@ -529,7 +531,7 @@ extension IterableExtension on Iterable { /// checked using [test] for whether a chunk should end between them. /// If so, the elements since the previous chunk-splitting elements /// are emitted as a list. - /// Any final elements are emitted at the end. + /// Any remaining elements are emitted at the end. /// /// Example: /// ```dart From d081e293c4c15ff709efe39d2ab8c7fe49ca248d Mon Sep 17 00:00:00 2001 From: "Lasse R.H. Nielsen" Date: Fri, 9 Dec 2022 18:04:54 +0100 Subject: [PATCH 190/235] Change `CastError` to `TypeError`, since the former is deprecated. (dart-lang/collection#258) --- pkgs/collection/lib/src/wrappers.dart | 18 +++++++++--------- pkgs/collection/test/queue_list_test.dart | 5 +---- 2 files changed, 10 insertions(+), 13 deletions(-) diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index 8b2c3d7a..bbd5dab1 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -134,7 +134,7 @@ class DelegatingIterable extends _DelegatingIterableBase { /// /// This soundly converts an [Iterable] without a generic type to an /// `Iterable` by asserting that its elements are instances of `E` whenever - /// they're accessed. If they're not, it throws a [CastError]. + /// they're accessed. If they're not, it throws a [TypeError]. /// /// This forwards all operations to [base], so any changes in [base] will be /// reflected in `this`. If [base] is already an `Iterable`, it's returned @@ -158,8 +158,8 @@ class DelegatingList extends _DelegatingIterableBase implements List { /// /// This soundly converts a [List] without a generic type to a `List` by /// asserting that its elements are instances of `E` whenever they're - /// accessed. If they're not, it throws a [CastError]. Note that even if an - /// operation throws a [CastError], it may still mutate the underlying + /// accessed. If they're not, it throws a [TypeError]. Note that even if an + /// operation throws a [TypeError], it may still mutate the underlying /// collection. /// /// This forwards all operations to [base], so any changes in [base] will be @@ -323,8 +323,8 @@ class DelegatingSet extends _DelegatingIterableBase implements Set { /// /// This soundly converts a [Set] without a generic type to a `Set` by /// asserting that its elements are instances of `E` whenever they're - /// accessed. If they're not, it throws a [CastError]. Note that even if an - /// operation throws a [CastError], it may still mutate the underlying + /// accessed. If they're not, it throws a [TypeError]. Note that even if an + /// operation throws a [TypeError], it may still mutate the underlying /// collection. /// /// This forwards all operations to [base], so any changes in [base] will be @@ -411,8 +411,8 @@ class DelegatingQueue extends _DelegatingIterableBase /// /// This soundly converts a [Queue] without a generic type to a `Queue` by /// asserting that its elements are instances of `E` whenever they're - /// accessed. If they're not, it throws a [CastError]. Note that even if an - /// operation throws a [CastError], it may still mutate the underlying + /// accessed. If they're not, it throws a [TypeError]. Note that even if an + /// operation throws a [TypeError], it may still mutate the underlying /// collection. /// /// This forwards all operations to [base], so any changes in [base] will be @@ -487,8 +487,8 @@ class DelegatingMap implements Map { /// /// This soundly converts a [Map] without generic types to a `Map` by /// asserting that its keys are instances of `E` and its values are instances - /// of `V` whenever they're accessed. If they're not, it throws a [CastError]. - /// Note that even if an operation throws a [CastError], it may still mutate + /// of `V` whenever they're accessed. If they're not, it throws a [TypeError]. + /// Note that even if an operation throws a [TypeError], it may still mutate /// the underlying collection. /// /// This forwards all operations to [base], so any changes in [base] will be diff --git a/pkgs/collection/test/queue_list_test.dart b/pkgs/collection/test/queue_list_test.dart index 57644da9..a8cda88f 100644 --- a/pkgs/collection/test/queue_list_test.dart +++ b/pkgs/collection/test/queue_list_test.dart @@ -272,10 +272,7 @@ void main() { var numQueue = stringQueue.cast(); expect(numQueue, const TypeMatcher>(), reason: 'Expected QueueList, got ${numQueue.runtimeType}'); - expect( - () => numQueue.add(1), - // ignore: deprecated_member_use - throwsA(isA())); + expect(() => numQueue.add(1), throwsA(isA())); }); test('cast returns a new QueueList', () { From 3656d54e23ea74c9115d6c722413c82582aac355 Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Tue, 3 Jan 2023 09:27:34 -0800 Subject: [PATCH 191/235] Bump actions/checkout from 3.1.0 to 3.2.0 (dart-lang/collection#262) Bumps [actions/checkout](https://github.com/actions/checkout) from 3.1.0 to 3.2.0. - [Release notes](https://github.com/actions/checkout/releases) - [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md) - [Commits](https://github.com/actions/checkout/compare/93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8...755da8c3cf115ac066823e79a1e1788f8940201b) --- updated-dependencies: - dependency-name: actions/checkout dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] Signed-off-by: dependabot[bot] Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> --- pkgs/collection/.github/workflows/ci.yml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index 824e77b0..48890e9d 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -21,7 +21,7 @@ jobs: matrix: sdk: [dev] steps: - - uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 + - uses: actions/checkout@755da8c3cf115ac066823e79a1e1788f8940201b - uses: dart-lang/setup-dart@6a218f2413a3e78e9087f638a238f6b40893203d with: sdk: ${{ matrix.sdk }} @@ -48,7 +48,7 @@ jobs: os: [ubuntu-latest] sdk: [2.18.0, dev] steps: - - uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 + - uses: actions/checkout@755da8c3cf115ac066823e79a1e1788f8940201b - uses: dart-lang/setup-dart@6a218f2413a3e78e9087f638a238f6b40893203d with: sdk: ${{ matrix.sdk }} From 598138331178a97ee75dbe6ef724924cb45562b8 Mon Sep 17 00:00:00 2001 From: Devon Carew Date: Thu, 26 Jan 2023 10:04:33 -0800 Subject: [PATCH 192/235] add a publish script; prep to publish (dart-lang/collection#267) * blast_repo fixes auto-publish * rev to 1.17.1 --- pkgs/collection/.github/workflows/publish.yaml | 14 ++++++++++++++ pkgs/collection/CHANGELOG.md | 2 +- pkgs/collection/README.md | 5 +++++ pkgs/collection/pubspec.yaml | 2 +- 4 files changed, 21 insertions(+), 2 deletions(-) create mode 100644 pkgs/collection/.github/workflows/publish.yaml diff --git a/pkgs/collection/.github/workflows/publish.yaml b/pkgs/collection/.github/workflows/publish.yaml new file mode 100644 index 00000000..fcb7ccb8 --- /dev/null +++ b/pkgs/collection/.github/workflows/publish.yaml @@ -0,0 +1,14 @@ +# A CI configuration to auto-publish pub packages. + +name: Publish + +on: + pull_request: + branches: [ master ] + push: + tags: [ 'v[0-9]+.[0-9]+.[0-9]+*' ] + +jobs: + publish: + if: ${{ github.repository_owner == 'dart-lang' }} + uses: dart-lang/ecosystem/.github/workflows/publish.yaml@main diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 39cf42f3..323c699c 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,4 +1,4 @@ -## 1.17.1-dev +## 1.17.1 * Require Dart 2.18 * Improve docs for `splitAfter` and `splitBefore`. diff --git a/pkgs/collection/README.md b/pkgs/collection/README.md index 9f66acf5..a6a064d4 100644 --- a/pkgs/collection/README.md +++ b/pkgs/collection/README.md @@ -57,3 +57,8 @@ functions on an existing object. Please file feature requests and bugs at the [issue tracker][tracker]. [tracker]: https://github.com/dart-lang/collection/issues + +## Publishing automation + +For information about our publishing automation and release process, see +https://github.com/dart-lang/ecosystem/wiki/Publishing-automation. diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 14ab46d6..2ff9b54f 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.17.1-dev +version: 1.17.1 description: Collections and utilities functions and classes related to collections. repository: https://github.com/dart-lang/collection From fd7ff217545d22d25c05d44a8e1e5c3a51fcb710 Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Wed, 1 Feb 2023 15:44:20 -0800 Subject: [PATCH 193/235] Bump actions/checkout from 3.2.0 to 3.3.0 (dart-lang/collection#269) Bumps [actions/checkout](https://github.com/actions/checkout) from 3.2.0 to 3.3.0. - [Release notes](https://github.com/actions/checkout/releases) - [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md) - [Commits](https://github.com/actions/checkout/compare/755da8c3cf115ac066823e79a1e1788f8940201b...ac593985615ec2ede58e132d2e21d2b1cbd6127c) --- updated-dependencies: - dependency-name: actions/checkout dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> --- pkgs/collection/.github/workflows/ci.yml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index 48890e9d..d1a31849 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -21,7 +21,7 @@ jobs: matrix: sdk: [dev] steps: - - uses: actions/checkout@755da8c3cf115ac066823e79a1e1788f8940201b + - uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c - uses: dart-lang/setup-dart@6a218f2413a3e78e9087f638a238f6b40893203d with: sdk: ${{ matrix.sdk }} @@ -48,7 +48,7 @@ jobs: os: [ubuntu-latest] sdk: [2.18.0, dev] steps: - - uses: actions/checkout@755da8c3cf115ac066823e79a1e1788f8940201b + - uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c - uses: dart-lang/setup-dart@6a218f2413a3e78e9087f638a238f6b40893203d with: sdk: ${{ matrix.sdk }} From 6cff8ccf0f07b4668fb3036f85005c25e6b230ab Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Wed, 1 Feb 2023 15:50:39 -0800 Subject: [PATCH 194/235] Bump dart-lang/setup-dart from 1.3 to 1.4 (dart-lang/collection#268) Bumps [dart-lang/setup-dart](https://github.com/dart-lang/setup-dart) from 1.3 to 1.4. - [Release notes](https://github.com/dart-lang/setup-dart/releases) - [Changelog](https://github.com/dart-lang/setup-dart/blob/main/CHANGELOG.md) - [Commits](https://github.com/dart-lang/setup-dart/compare/6a218f2413a3e78e9087f638a238f6b40893203d...a57a6c04cf7d4840e88432aad6281d1e125f0d46) --- updated-dependencies: - dependency-name: dart-lang/setup-dart dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> --- pkgs/collection/.github/workflows/ci.yml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index d1a31849..ec197148 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -22,7 +22,7 @@ jobs: sdk: [dev] steps: - uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c - - uses: dart-lang/setup-dart@6a218f2413a3e78e9087f638a238f6b40893203d + - uses: dart-lang/setup-dart@a57a6c04cf7d4840e88432aad6281d1e125f0d46 with: sdk: ${{ matrix.sdk }} - id: install @@ -49,7 +49,7 @@ jobs: sdk: [2.18.0, dev] steps: - uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c - - uses: dart-lang/setup-dart@6a218f2413a3e78e9087f638a238f6b40893203d + - uses: dart-lang/setup-dart@a57a6c04cf7d4840e88432aad6281d1e125f0d46 with: sdk: ${{ matrix.sdk }} - id: install From 98ff5e30a33015e63ed0a1ef2784b27af958c284 Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Sun, 2 Apr 2023 19:55:03 -0700 Subject: [PATCH 195/235] Bump actions/checkout from 3.3.0 to 3.5.0 (dart-lang/collection#277) Bumps [actions/checkout](https://github.com/actions/checkout) from 3.3.0 to 3.5.0. - [Release notes](https://github.com/actions/checkout/releases) - [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md) - [Commits](https://github.com/actions/checkout/compare/ac593985615ec2ede58e132d2e21d2b1cbd6127c...8f4b7f84864484a7bf31766abe9204da3cbe65b3) --- updated-dependencies: - dependency-name: actions/checkout dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> --- pkgs/collection/.github/workflows/ci.yml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index ec197148..7a666537 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -21,7 +21,7 @@ jobs: matrix: sdk: [dev] steps: - - uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c + - uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 - uses: dart-lang/setup-dart@a57a6c04cf7d4840e88432aad6281d1e125f0d46 with: sdk: ${{ matrix.sdk }} @@ -48,7 +48,7 @@ jobs: os: [ubuntu-latest] sdk: [2.18.0, dev] steps: - - uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c + - uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 - uses: dart-lang/setup-dart@a57a6c04cf7d4840e88432aad6281d1e125f0d46 with: sdk: ${{ matrix.sdk }} From 41d266e121c6afb92528c23362ba4d4b1d519090 Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Mon, 3 Apr 2023 14:35:22 -0700 Subject: [PATCH 196/235] Bump dart-lang/setup-dart from 1.4.0 to 1.5.0 (dart-lang/collection#278) Bumps [dart-lang/setup-dart](https://github.com/dart-lang/setup-dart) from 1.4.0 to 1.5.0. - [Release notes](https://github.com/dart-lang/setup-dart/releases) - [Changelog](https://github.com/dart-lang/setup-dart/blob/main/CHANGELOG.md) - [Commits](https://github.com/dart-lang/setup-dart/compare/a57a6c04cf7d4840e88432aad6281d1e125f0d46...d6a63dab3335f427404425de0fbfed4686d93c4f) --- updated-dependencies: - dependency-name: dart-lang/setup-dart dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> --- pkgs/collection/.github/workflows/ci.yml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index 7a666537..257b8801 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -22,7 +22,7 @@ jobs: sdk: [dev] steps: - uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 - - uses: dart-lang/setup-dart@a57a6c04cf7d4840e88432aad6281d1e125f0d46 + - uses: dart-lang/setup-dart@d6a63dab3335f427404425de0fbfed4686d93c4f with: sdk: ${{ matrix.sdk }} - id: install @@ -49,7 +49,7 @@ jobs: sdk: [2.18.0, dev] steps: - uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 - - uses: dart-lang/setup-dart@a57a6c04cf7d4840e88432aad6281d1e125f0d46 + - uses: dart-lang/setup-dart@d6a63dab3335f427404425de0fbfed4686d93c4f with: sdk: ${{ matrix.sdk }} - id: install From 9c8aae310e8ea837733a7a26d25c0489b2e377ba Mon Sep 17 00:00:00 2001 From: "Lasse R.H. Nielsen" Date: Wed, 3 May 2023 19:28:57 +0200 Subject: [PATCH 197/235] Accept SDK version above 3.0. (dart-lang/collection#281) * Accept SDK version above 3.0. Fix local variable typos and add comments preparing for 3.0 migration. --- pkgs/collection/CHANGELOG.md | 6 +++++- pkgs/collection/lib/src/boollist.dart | 12 ++++++------ pkgs/collection/lib/src/unmodifiable_wrappers.dart | 4 ++-- pkgs/collection/pubspec.yaml | 4 ++-- 4 files changed, 15 insertions(+), 11 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 323c699c..4180af37 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,6 +1,10 @@ +## 1.17.2 + +* Accept Dart SDK versions above 3.0. + ## 1.17.1 -* Require Dart 2.18 +* Require Dart 2.18. * Improve docs for `splitAfter` and `splitBefore`. ## 1.17.0 diff --git a/pkgs/collection/lib/src/boollist.dart b/pkgs/collection/lib/src/boollist.dart index 3ce9cf25..b026d858 100644 --- a/pkgs/collection/lib/src/boollist.dart +++ b/pkgs/collection/lib/src/boollist.dart @@ -10,7 +10,7 @@ import 'unmodifiable_wrappers.dart' show NonGrowableListMixin; /// A space-efficient list of boolean values. /// /// Uses list of integers as internal storage to reduce memory usage. -abstract class BoolList with ListMixin { +abstract /*mixin*/ class BoolList with ListMixin { static const int _entryShift = 5; static const int _bitsPerEntry = 32; @@ -42,18 +42,18 @@ abstract class BoolList with ListMixin { factory BoolList(int length, {bool fill = false, bool growable = false}) { RangeError.checkNotNegative(length, 'length'); - BoolList boolist; + BoolList boolList; if (growable) { - boolist = _GrowableBoolList(length); + boolList = _GrowableBoolList(length); } else { - boolist = _NonGrowableBoolList(length); + boolList = _NonGrowableBoolList(length); } if (fill) { - boolist.fillRange(0, length, true); + boolList.fillRange(0, length, true); } - return boolist; + return boolList; } /// Creates an empty list of booleans. diff --git a/pkgs/collection/lib/src/unmodifiable_wrappers.dart b/pkgs/collection/lib/src/unmodifiable_wrappers.dart index 4305644d..c3c65d57 100644 --- a/pkgs/collection/lib/src/unmodifiable_wrappers.dart +++ b/pkgs/collection/lib/src/unmodifiable_wrappers.dart @@ -116,7 +116,7 @@ class UnmodifiableSetView extends DelegatingSet /// Mixin class that implements a throwing version of all set operations that /// change the Set. -abstract class UnmodifiableSetMixin implements Set { +abstract /*mixin*/ class UnmodifiableSetMixin implements Set { static Never _throw() { throw UnsupportedError('Cannot modify an unmodifiable Set'); } @@ -164,7 +164,7 @@ abstract class UnmodifiableSetMixin implements Set { /// Mixin class that implements a throwing version of all map operations that /// change the Map. -abstract class UnmodifiableMapMixin implements Map { +abstract /*mixin*/ class UnmodifiableMapMixin implements Map { static Never _throw() { throw UnsupportedError('Cannot modify an unmodifiable Map'); } diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 2ff9b54f..bf073d04 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,10 +1,10 @@ name: collection -version: 1.17.1 +version: 1.17.2 description: Collections and utilities functions and classes related to collections. repository: https://github.com/dart-lang/collection environment: - sdk: ">=2.18.0 <3.0.0" + sdk: ">=2.18.0 <4.0.0" dev_dependencies: lints: ^2.0.0 From d3757205a5519d53d10e3af13ab2a05c2e40dbda Mon Sep 17 00:00:00 2001 From: Michael Thomsen Date: Thu, 4 May 2023 12:41:43 +0200 Subject: [PATCH 198/235] Add topics to pubspec (dart-lang/collection#285) --- pkgs/collection/pubspec.yaml | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index bf073d04..912d6c46 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -3,6 +3,10 @@ version: 1.17.2 description: Collections and utilities functions and classes related to collections. repository: https://github.com/dart-lang/collection +topics: + - data-structures + - collections + environment: sdk: ">=2.18.0 <4.0.0" From 53cc59041b4e98ac0ea19e8e25df5cc10058bafa Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Mon, 8 May 2023 12:21:59 -0700 Subject: [PATCH 199/235] Bump actions/checkout from 3.5.0 to 3.5.2 (dart-lang/collection#282) Bumps [actions/checkout](https://github.com/actions/checkout) from 3.5.0 to 3.5.2. - [Release notes](https://github.com/actions/checkout/releases) - [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md) - [Commits](https://github.com/actions/checkout/compare/8f4b7f84864484a7bf31766abe9204da3cbe65b3...8e5e7e5ab8b370d6c329ec480221332ada57f0ab) --- updated-dependencies: - dependency-name: actions/checkout dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> --- pkgs/collection/.github/workflows/ci.yml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index 257b8801..217daf2b 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -21,7 +21,7 @@ jobs: matrix: sdk: [dev] steps: - - uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 + - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab - uses: dart-lang/setup-dart@d6a63dab3335f427404425de0fbfed4686d93c4f with: sdk: ${{ matrix.sdk }} @@ -48,7 +48,7 @@ jobs: os: [ubuntu-latest] sdk: [2.18.0, dev] steps: - - uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 + - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab - uses: dart-lang/setup-dart@d6a63dab3335f427404425de0fbfed4686d93c4f with: sdk: ${{ matrix.sdk }} From 282e6b34d42d488b4478a33fc097752915aa01c0 Mon Sep 17 00:00:00 2001 From: Devon Carew Date: Mon, 15 May 2023 14:34:49 -0700 Subject: [PATCH 200/235] blast_repo fixes (dart-lang/collection#288) dependabot --- pkgs/collection/.github/dependabot.yaml | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/pkgs/collection/.github/dependabot.yaml b/pkgs/collection/.github/dependabot.yaml index 21448193..439e796b 100644 --- a/pkgs/collection/.github/dependabot.yaml +++ b/pkgs/collection/.github/dependabot.yaml @@ -2,7 +2,9 @@ version: 2 updates: - - package-ecosystem: "github-actions" - directory: "/" + - package-ecosystem: github-actions + directory: / schedule: - interval: "monthly" + interval: monthly + labels: + - autosubmit From 5e6cacf8094283e0a94da0874ab8ed2ff9c976df Mon Sep 17 00:00:00 2001 From: Graciliano Monteiro Passos Date: Thu, 18 May 2023 19:40:54 -0300 Subject: [PATCH 201/235] `CanonicalizedMap`: new `copy`, `toMap` and `toMapOfCanonicalKeys` methods (dart-lang/collection#261) - `copy`: copies a `CanonicalizedMap` instance without recalculating the canonical values of the keys. - `toMap`: creates a `Map` (with the original key values). - `toMapOfCanonicalKeys`: creates a `Map` (with the canonicalized keys). --- pkgs/collection/CHANGELOG.md | 9 +++ .../collection/lib/src/canonicalized_map.dart | 19 +++++++ pkgs/collection/pubspec.yaml | 4 +- .../test/canonicalized_map_test.dart | 57 +++++++++++++++++++ 4 files changed, 87 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 4180af37..6d9f0e50 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,12 @@ +## 1.18.0-wip + +- `CanonicalizedMap`: + - Added methods: + - `copy`: copies an instance without recalculating the canonical values of the keys. + - `toMap`: creates a `Map` (with the original key values). + - `toMapOfCanonicalKeys`: creates a `Map` (with the canonicalized keys). +- lints: ^2.0.1 + ## 1.17.2 * Accept Dart SDK versions above 3.0. diff --git a/pkgs/collection/lib/src/canonicalized_map.dart b/pkgs/collection/lib/src/canonicalized_map.dart index dcb07cf4..84909246 100644 --- a/pkgs/collection/lib/src/canonicalized_map.dart +++ b/pkgs/collection/lib/src/canonicalized_map.dart @@ -46,6 +46,16 @@ class CanonicalizedMap implements Map { addAll(other); } + CanonicalizedMap._( + this._canonicalize, this._isValidKeyFn, Map> base) { + _base.addAll(base); + } + + /// Copies this [CanonicalizedMap] instance without recalculating the + /// canonical values of the keys. + CanonicalizedMap copy() => + CanonicalizedMap._(_canonicalize, _isValidKeyFn, _base); + @override V? operator [](Object? key) { if (!_isValidKey(key)) return null; @@ -161,4 +171,13 @@ class CanonicalizedMap implements Map { bool _isValidKey(Object? key) => (key is K) && (_isValidKeyFn == null || _isValidKeyFn!(key)); + + /// Creates a `Map` (with the original key values). + /// See [toMapOfCanonicalKeys]. + Map toMap() => Map.fromEntries(_base.values); + + /// Creates a `Map` (with the canonicalized keys). + /// See [toMap]. + Map toMapOfCanonicalKeys() => Map.fromEntries( + _base.entries.map((e) => MapEntry(e.key, e.value.value))); } diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 912d6c46..34867a09 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.17.2 +version: 1.18.0-wip description: Collections and utilities functions and classes related to collections. repository: https://github.com/dart-lang/collection @@ -11,5 +11,5 @@ environment: sdk: ">=2.18.0 <4.0.0" dev_dependencies: - lints: ^2.0.0 + lints: ^2.0.1 test: ^1.16.0 diff --git a/pkgs/collection/test/canonicalized_map_test.dart b/pkgs/collection/test/canonicalized_map_test.dart index dad9c870..34e4e8d9 100644 --- a/pkgs/collection/test/canonicalized_map_test.dart +++ b/pkgs/collection/test/canonicalized_map_test.dart @@ -204,4 +204,61 @@ void main() { expect(map['0001'], equals('value 3')); }); }); + + group('CanonicalizedMap.toMapOfCanonicalKeys', () { + test('convert to a `Map`', () { + var map = CanonicalizedMap.from( + {'1': 'value 1', '2': 'value 2', '3': 'value 3'}, int.parse); + + var map2 = map.toMapOfCanonicalKeys(); + + expect(map2, isNot(isA())); + + expect(map2[1], equals('value 1')); + expect(map2[2], equals('value 2')); + expect(map2[3], equals('value 3')); + + expect(map2, equals({1: 'value 1', 2: 'value 2', 3: 'value 3'})); + }); + }); + + group('CanonicalizedMap.toMap', () { + test('convert to a `Map`', () { + var map = CanonicalizedMap.from( + {'1': 'value 1', '2': 'value 2', '3': 'value 3'}, int.parse); + + var map2 = map.toMap(); + + expect(map2, isNot(isA())); + + expect(map2['1'], equals('value 1')); + expect(map2['2'], equals('value 2')); + expect(map2['3'], equals('value 3')); + + expect(map2, equals({'1': 'value 1', '2': 'value 2', '3': 'value 3'})); + }); + }); + + group('CanonicalizedMap.copy', () { + test('copy instance', () { + var map = CanonicalizedMap.from( + {'1': 'value 1', '2': 'value 2', '3': 'value 3'}, int.parse); + + var map2 = map.copy(); + + expect(map2['01'], equals('value 1')); + expect(map2['02'], equals('value 2')); + expect(map2['03'], equals('value 3')); + + expect(map2['1'], equals('value 1')); + expect(map2['2'], equals('value 2')); + expect(map2['3'], equals('value 3')); + + expect(map2, equals({'1': 'value 1', '2': 'value 2', '3': 'value 3'})); + + var map3 = Map.fromEntries(map2.entries); + + expect(map3, equals({'1': 'value 1', '2': 'value 2', '3': 'value 3'})); + }); + }); } From 9307a5a02601484697c2d60742a8a04d69719d64 Mon Sep 17 00:00:00 2001 From: "Lasse R.H. Nielsen" Date: Tue, 23 May 2023 18:27:19 +0200 Subject: [PATCH 202/235] Fix bugs in `ListExtensions.slice` and `ListSlice.slice`. (dart-lang/collection#290) Thanks to [@hcanyz](https://github.com/hcanyz) for finding the bugs, and suggesting fixes. Adds regression test. Fixes dart-lang/collection#286 --- pkgs/collection/CHANGELOG.md | 1 + pkgs/collection/lib/src/list_extensions.dart | 4 ++-- pkgs/collection/test/extensions_test.dart | 13 +++++++++++++ 3 files changed, 16 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 6d9f0e50..4a1e2d80 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -5,6 +5,7 @@ - `copy`: copies an instance without recalculating the canonical values of the keys. - `toMap`: creates a `Map` (with the original key values). - `toMapOfCanonicalKeys`: creates a `Map` (with the canonicalized keys). +- Fixes bugs in `ListSlice.slice` and `ListExtensions.slice`. - lints: ^2.0.1 ## 1.17.2 diff --git a/pkgs/collection/lib/src/list_extensions.dart b/pkgs/collection/lib/src/list_extensions.dart index 5ab2c8bc..40fa8af6 100644 --- a/pkgs/collection/lib/src/list_extensions.dart +++ b/pkgs/collection/lib/src/list_extensions.dart @@ -241,7 +241,7 @@ extension ListExtensions on List { ListSlice slice(int start, [int? end]) { end = RangeError.checkValidRange(start, end, length); var self = this; - if (self is ListSlice) return self.slice(start, end); + if (self is ListSlice) return self.slice(start, end); return ListSlice(this, start, end); } @@ -404,7 +404,7 @@ class ListSlice extends ListBase { /// ``` ListSlice slice(int start, [int? end]) { end = RangeError.checkValidRange(start, end, length); - return ListSlice._(_initialSize, source, start + start, end - start); + return ListSlice._(_initialSize, source, this.start + start, end - start); } @override diff --git a/pkgs/collection/test/extensions_test.dart b/pkgs/collection/test/extensions_test.dart index 31bb458c..23bc3211 100644 --- a/pkgs/collection/test/extensions_test.dart +++ b/pkgs/collection/test/extensions_test.dart @@ -1207,6 +1207,19 @@ void main() { test('refuses length 0', () { expect(() => iterable([1]).slices(0), throwsRangeError); }); + test('regression #286, bug in slice', () { + var l1 = [1, 2, 3, 4, 5, 6]; + List l2 = l1.slice(1, 5); // (2..5) + // This call would stack-overflow due to a lacking type promotion + // which caused the extension method to keep calling itself, + // instead of switching to the instance method on `ListSlice`. + // + // If successful, it would use the `2` argument as offset, instead + // of the `1` offset from the `slice` call above. + var l3 = l2.slice(2, 4); // (4..5) + expect(l3, [4, 5]); + expect(l3.toList(), [4, 5]); + }); }); }); From 5a0a5cdba460495ec1546f5954d19fbe6973af45 Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Sat, 1 Jul 2023 23:34:07 +0000 Subject: [PATCH 203/235] Bump actions/checkout from 3.5.2 to 3.5.3 (dart-lang/collection#295) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Bumps [actions/checkout](https://github.com/actions/checkout) from 3.5.2 to 3.5.3.
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Full Changelog: https://github.com/actions/checkout/compare/v3...v3.5.3

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--- pkgs/collection/.github/workflows/ci.yml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index 217daf2b..e01cec54 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -21,7 +21,7 @@ jobs: matrix: sdk: [dev] steps: - - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab + - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 - uses: dart-lang/setup-dart@d6a63dab3335f427404425de0fbfed4686d93c4f with: sdk: ${{ matrix.sdk }} @@ -48,7 +48,7 @@ jobs: os: [ubuntu-latest] sdk: [2.18.0, dev] steps: - - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab + - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 - uses: dart-lang/setup-dart@d6a63dab3335f427404425de0fbfed4686d93c4f with: sdk: ${{ matrix.sdk }} From c60f84d7f15353ad79cf9a59a911fc40d26d9c7a Mon Sep 17 00:00:00 2001 From: Devon Carew Date: Tue, 25 Jul 2023 18:01:58 -0700 Subject: [PATCH 204/235] prep for publishing 1.18.0 (dart-lang/collection#299) --- pkgs/collection/CHANGELOG.md | 4 ++-- pkgs/collection/pubspec.yaml | 5 +++-- 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 4a1e2d80..428c2c5b 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,4 +1,4 @@ -## 1.18.0-wip +## 1.18.0 - `CanonicalizedMap`: - Added methods: @@ -6,7 +6,7 @@ - `toMap`: creates a `Map` (with the original key values). - `toMapOfCanonicalKeys`: creates a `Map` (with the canonicalized keys). - Fixes bugs in `ListSlice.slice` and `ListExtensions.slice`. -- lints: ^2.0.1 +- Update to `package:lints` 2.0.1. ## 1.17.2 diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 34867a09..c6a48f5e 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,6 +1,7 @@ name: collection -version: 1.18.0-wip -description: Collections and utilities functions and classes related to collections. +version: 1.18.0 +description: >- + Collections and utilities functions and classes related to collections. repository: https://github.com/dart-lang/collection topics: From c0d0a9d9a61db3e08249fb6acaca3b3d34a61d21 Mon Sep 17 00:00:00 2001 From: ebraminio Date: Thu, 10 Aug 2023 09:39:04 -0700 Subject: [PATCH 205/235] Add IterableExtension.shuffled (dart-lang/collection#298) Creates a shuffled list of the elements of the iterable. --- pkgs/collection/CHANGELOG.md | 1 + pkgs/collection/lib/src/iterable_extensions.dart | 3 +++ pkgs/collection/test/extensions_test.dart | 16 ++++++++++++++++ 3 files changed, 20 insertions(+) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 428c2c5b..f5b9279b 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -6,6 +6,7 @@ - `toMap`: creates a `Map` (with the original key values). - `toMapOfCanonicalKeys`: creates a `Map` (with the canonicalized keys). - Fixes bugs in `ListSlice.slice` and `ListExtensions.slice`. +- Adds `shuffled` to `IterableExtension`. - Update to `package:lints` 2.0.1. ## 1.17.2 diff --git a/pkgs/collection/lib/src/iterable_extensions.dart b/pkgs/collection/lib/src/iterable_extensions.dart index 7772622c..6e0be3c8 100644 --- a/pkgs/collection/lib/src/iterable_extensions.dart +++ b/pkgs/collection/lib/src/iterable_extensions.dart @@ -58,6 +58,9 @@ extension IterableExtension on Iterable { /// The elements are ordered by the [compare] [Comparator]. List sorted(Comparator compare) => [...this]..sort(compare); + /// Creates a shuffled list of the elements of the iterable. + List shuffled([Random? random]) => [...this]..shuffle(random); + /// Creates a sorted list of the elements of the iterable. /// /// The elements are ordered by the natural ordering of the diff --git a/pkgs/collection/test/extensions_test.dart b/pkgs/collection/test/extensions_test.dart index 23bc3211..d7a59a0f 100644 --- a/pkgs/collection/test/extensions_test.dart +++ b/pkgs/collection/test/extensions_test.dart @@ -37,6 +37,22 @@ void main() { expect(iterable([5, 2, 4, 3, 1]).sorted(cmpInt), [1, 2, 3, 4, 5]); }); }); + group('.shuffled', () { + test('empty', () { + expect(iterable([]).shuffled(), []); + }); + test('singleton', () { + expect(iterable([1]).shuffled(), [1]); + }); + test('multiple', () { + var input = iterable([1, 2, 3, 4, 5]); + var copy = [...input]; + var shuffled = input.shuffled(); + expect(UnorderedIterableEquality().equals(input, shuffled), isTrue); + // Check that the original list isn't touched + expect(input, copy); + }); + }); group('.sortedBy', () { test('empty', () { expect(iterable([]).sortedBy(unreachable), []); From c34d19829dacb5f014e9ee6a36fd01286912375c Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Fri, 11 Aug 2023 16:59:20 -0700 Subject: [PATCH 206/235] Fix changelog and version (dart-lang/collection#303) The added feature was not merged before the package publish. --- pkgs/collection/CHANGELOG.md | 5 ++++- pkgs/collection/pubspec.yaml | 2 +- 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index f5b9279b..7f56df02 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.19.0-wip + +- Adds `shuffled` to `IterableExtension`. + ## 1.18.0 - `CanonicalizedMap`: @@ -6,7 +10,6 @@ - `toMap`: creates a `Map` (with the original key values). - `toMapOfCanonicalKeys`: creates a `Map` (with the canonicalized keys). - Fixes bugs in `ListSlice.slice` and `ListExtensions.slice`. -- Adds `shuffled` to `IterableExtension`. - Update to `package:lints` 2.0.1. ## 1.17.2 diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index c6a48f5e..b7c9919f 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.18.0 +version: 1.19.0-wip description: >- Collections and utilities functions and classes related to collections. repository: https://github.com/dart-lang/collection From ba221b6ab3f49b7600d29b5456d7efea22671d4f Mon Sep 17 00:00:00 2001 From: ebraminio Date: Fri, 11 Aug 2023 17:16:13 -0700 Subject: [PATCH 207/235] Make sure .sample()'s result is randomized in more cases (dart-lang/collection#302) Samples which retain elements from early in the input would have those elements in the same order as the input. As the sample size approaches the size of the input, the ordering was more noticeably correlated to the input order. Use random indexes for the initial unconditionally added elements before the later elements are selected into random indexes. This allows the output order to be consistently uncorrelated with the input order, even for samples of the entire input. --- pkgs/collection/CHANGELOG.md | 1 + .../lib/src/iterable_extensions.dart | 13 +++++++--- pkgs/collection/test/extensions_test.dart | 25 +++++++++++++++++++ 3 files changed, 36 insertions(+), 3 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 7f56df02..c27f014f 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,6 +1,7 @@ ## 1.19.0-wip - Adds `shuffled` to `IterableExtension`. +- Shuffle `IterableExtension.sample` results. ## 1.18.0 diff --git a/pkgs/collection/lib/src/iterable_extensions.dart b/pkgs/collection/lib/src/iterable_extensions.dart index 6e0be3c8..7d7b2e08 100644 --- a/pkgs/collection/lib/src/iterable_extensions.dart +++ b/pkgs/collection/lib/src/iterable_extensions.dart @@ -32,15 +32,22 @@ extension IterableExtension on Iterable { RangeError.checkNotNegative(count, 'count'); var iterator = this.iterator; var chosen = []; - for (var i = 0; i < count; i++) { + random ??= Random(); + while (chosen.length < count) { if (iterator.moveNext()) { - chosen.add(iterator.current); + var nextElement = iterator.current; + var position = random.nextInt(chosen.length + 1); + if (position == chosen.length) { + chosen.add(nextElement); + } else { + chosen.add(chosen[position]); + chosen[position] = nextElement; + } } else { return chosen; } } var index = count; - random ??= Random(); while (iterator.moveNext()) { index++; var position = random.nextInt(index); diff --git a/pkgs/collection/test/extensions_test.dart b/pkgs/collection/test/extensions_test.dart index d7a59a0f..229d6e2d 100644 --- a/pkgs/collection/test/extensions_test.dart +++ b/pkgs/collection/test/extensions_test.dart @@ -1175,6 +1175,31 @@ void main() { expect(other, some); } }); + group('shuffles results', () { + late Random random; + late Iterable input; + setUp(() async { + input = iterable([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]); + random = Random(12345); + }); + test('for partial samples of input', () { + var result = input.sample(9, random); + expect(result.length, 9); + expect(result.isSorted(cmpInt), isFalse); + }); + test('for complete samples of input', () { + var result = input.sample(10, random); + expect(result.length, 10); + expect(result.isSorted(cmpInt), isFalse); + expect(UnorderedIterableEquality().equals(input, result), isTrue); + }); + test('for overlengthed samples of input', () { + var result = input.sample(20, random); + expect(result.length, 10); + expect(result.isSorted(cmpInt), isFalse); + expect(UnorderedIterableEquality().equals(input, result), isTrue); + }); + }); }); group('.elementAtOrNull', () { test('empty', () async { From 1c65447cc679d05191686777dd931777b4b8f413 Mon Sep 17 00:00:00 2001 From: ebraminio Date: Tue, 15 Aug 2023 13:23:16 -0700 Subject: [PATCH 208/235] Minor typo fix (dart-lang/collection#304) Fix spelling in the doc for `splitAfterIndexed` --- pkgs/collection/lib/src/iterable_extensions.dart | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/pkgs/collection/lib/src/iterable_extensions.dart b/pkgs/collection/lib/src/iterable_extensions.dart index 7d7b2e08..1bf4b3ed 100644 --- a/pkgs/collection/lib/src/iterable_extensions.dart +++ b/pkgs/collection/lib/src/iterable_extensions.dart @@ -510,7 +510,7 @@ extension IterableExtension on Iterable { /// Each element and index is checked using [test] /// for whether it should end the current chunk. /// If so, the elements since the previous chunk-ending element, - /// includeing the elemenent that satisfied [test], + /// including the element that satisfied [test], /// are emitted as a list. /// Any remaining elements are emitted at the end, whether the last /// element should be split after or not. From 0a05c14926a8f79d331d27f174d10749c13ff199 Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Sat, 2 Sep 2023 00:03:00 +0000 Subject: [PATCH 209/235] Bump actions/checkout from 3.5.3 to 3.6.0 (dart-lang/collection#311) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Bumps [actions/checkout](https://github.com/actions/checkout) from 3.5.3 to 3.6.0.
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--- pkgs/collection/.github/workflows/ci.yml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index e01cec54..65537965 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -21,7 +21,7 @@ jobs: matrix: sdk: [dev] steps: - - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 + - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 - uses: dart-lang/setup-dart@d6a63dab3335f427404425de0fbfed4686d93c4f with: sdk: ${{ matrix.sdk }} @@ -48,7 +48,7 @@ jobs: os: [ubuntu-latest] sdk: [2.18.0, dev] steps: - - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 + - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 - uses: dart-lang/setup-dart@d6a63dab3335f427404425de0fbfed4686d93c4f with: sdk: ${{ matrix.sdk }} From 74ee549079ff5ac4a2e3154b375da39ae964e55c Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Mon, 2 Oct 2023 00:04:21 +0000 Subject: [PATCH 210/235] Bump dart-lang/setup-dart from 1.5.0 to 1.5.1 (dart-lang/collection#313) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Bumps [dart-lang/setup-dart](https://github.com/dart-lang/setup-dart) from 1.5.0 to 1.5.1.
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v1.5.1

  • No longer test the setup-dart action on pre-2.12 SDKs.
  • Upgrade JS interop code to use extension types (the new name for inline classes).
  • The upcoming rename of the be channel to main is now supported with forward compatibility that switches when the rename happens.
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v1.6.0

  • Enable provisioning of the latest Dart SDK patch release by specifying just the major and minor version (e.g. 3.2).

v1.5.1

  • No longer test the setup-dart action on pre-2.12 SDKs.
  • Upgrade JS interop code to use extension types (the new name for inline classes).
  • The upcoming rename of the be channel to main is now supported with forward compatibility that switches when the rename happens.

v1.5.0

  • Re-wrote the implementation of the action into Dart.
  • Auto-detect the platform architecture (x64, ia32, arm, arm64).
  • Improved the caching and download resilience of the sdk.
  • Added a new action output: dart-version - the installed version of the sdk.

v1.4.0

  • Automatically create OIDC token for pub.dev.
  • Add a reusable workflow for publishing.

v1.3.0

  • The install location of the Dart SDK is now available in an environment variable, DART_HOME (dart-lang/collection#43).
  • Fixed an issue where cached downloads could lead to unzip issues on self-hosted runners (dart-lang/collection#35).

v1.2.0

  • Fixed a path issue impacting git dependencies on Windows.

v1.1.0

  • Added a flavor option setup.sh to allow downloading unpublished builds.

v1.0.0

  • Promoted to 1.0 stable.

v0.5

  • Fixed a Windows pub global activate path issue.

... (truncated)

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--- pkgs/collection/.github/workflows/ci.yml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index 65537965..fb9ca84c 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -22,7 +22,7 @@ jobs: sdk: [dev] steps: - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 - - uses: dart-lang/setup-dart@d6a63dab3335f427404425de0fbfed4686d93c4f + - uses: dart-lang/setup-dart@8a4b97ea2017cc079571daec46542f76189836b1 with: sdk: ${{ matrix.sdk }} - id: install @@ -49,7 +49,7 @@ jobs: sdk: [2.18.0, dev] steps: - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 - - uses: dart-lang/setup-dart@d6a63dab3335f427404425de0fbfed4686d93c4f + - uses: dart-lang/setup-dart@8a4b97ea2017cc079571daec46542f76189836b1 with: sdk: ${{ matrix.sdk }} - id: install From 880fe32c33554d3dbb455583b1730a399cb02ee7 Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Mon, 2 Oct 2023 18:25:16 +0000 Subject: [PATCH 211/235] Bump actions/checkout from 3.6.0 to 4.1.0 (dart-lang/collection#314) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Bumps [actions/checkout](https://github.com/actions/checkout) from 3.6.0 to 4.1.0.
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v4.1.0

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--- pkgs/collection/.github/workflows/ci.yml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index fb9ca84c..e75b4d4f 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -21,7 +21,7 @@ jobs: matrix: sdk: [dev] steps: - - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 + - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 - uses: dart-lang/setup-dart@8a4b97ea2017cc079571daec46542f76189836b1 with: sdk: ${{ matrix.sdk }} @@ -48,7 +48,7 @@ jobs: os: [ubuntu-latest] sdk: [2.18.0, dev] steps: - - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 + - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 - uses: dart-lang/setup-dart@8a4b97ea2017cc079571daec46542f76189836b1 with: sdk: ${{ matrix.sdk }} From 17e218b96bce33b4f4c6461ecbd4abd4ce95ed9d Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Wed, 1 Nov 2023 23:10:10 +0000 Subject: [PATCH 212/235] Bump dart-lang/setup-dart from 1.5.1 to 1.6.0 (dart-lang/collection#319) Bumps [dart-lang/setup-dart](https://github.com/dart-lang/setup-dart) from 1.5.1 to 1.6.0.
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v1.6.0

  • Enable provisioning of the latest Dart SDK patch release by specifying just the major and minor version (e.g. 3.2).
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v1.6.0

  • Enable provisioning of the latest Dart SDK patch release by specifying just the major and minor version (e.g. 3.2).

v1.5.1

  • No longer test the setup-dart action on pre-2.12 SDKs.
  • Upgrade JS interop code to use extension types (the new name for inline classes).
  • The upcoming rename of the be channel to main is now supported with forward compatibility that switches when the rename happens.

v1.5.0

  • Re-wrote the implementation of the action into Dart.
  • Auto-detect the platform architecture (x64, ia32, arm, arm64).
  • Improved the caching and download resilience of the sdk.
  • Added a new action output: dart-version - the installed version of the sdk.

v1.4.0

  • Automatically create OIDC token for pub.dev.
  • Add a reusable workflow for publishing.

v1.3.0

  • The install location of the Dart SDK is now available in an environment variable, DART_HOME (dart-lang/collection#43).
  • Fixed an issue where cached downloads could lead to unzip issues on self-hosted runners (dart-lang/collection#35).

v1.2.0

  • Fixed a path issue impacting git dependencies on Windows.

v1.1.0

  • Added a flavor option setup.sh to allow downloading unpublished builds.

v1.0.0

  • Promoted to 1.0 stable.

v0.5

  • Fixed a Windows pub global activate path issue.

... (truncated)

Commits

[![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=dart-lang/setup-dart&package-manager=github_actions&previous-version=1.5.1&new-version=1.6.0)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores) Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`. ---
Dependabot commands and options
You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually - `@dependabot show ignore conditions` will show all of the ignore conditions of the specified dependency - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
--- pkgs/collection/.github/workflows/ci.yml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index e75b4d4f..202be017 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -22,7 +22,7 @@ jobs: sdk: [dev] steps: - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 - - uses: dart-lang/setup-dart@8a4b97ea2017cc079571daec46542f76189836b1 + - uses: dart-lang/setup-dart@b64355ae6ca0b5d484f0106a033dd1388965d06d with: sdk: ${{ matrix.sdk }} - id: install @@ -49,7 +49,7 @@ jobs: sdk: [2.18.0, dev] steps: - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 - - uses: dart-lang/setup-dart@8a4b97ea2017cc079571daec46542f76189836b1 + - uses: dart-lang/setup-dart@b64355ae6ca0b5d484f0106a033dd1388965d06d with: sdk: ${{ matrix.sdk }} - id: install From c4c25633fbc4cf2130b846a9168f9277431174c7 Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Thu, 2 Nov 2023 16:11:55 +0000 Subject: [PATCH 213/235] Bump actions/checkout from 4.1.0 to 4.1.1 (dart-lang/collection#318) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Bumps [actions/checkout](https://github.com/actions/checkout) from 4.1.0 to 4.1.1.
Release notes

Sourced from actions/checkout's releases.

v4.1.1

What's Changed

New Contributors

Full Changelog: https://github.com/actions/checkout/compare/v4.1.0...v4.1.1

Commits

[![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=actions/checkout&package-manager=github_actions&previous-version=4.1.0&new-version=4.1.1)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores) Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`. ---
Dependabot commands and options
You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually - `@dependabot show ignore conditions` will show all of the ignore conditions of the specified dependency - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
--- pkgs/collection/.github/workflows/ci.yml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index 202be017..51aaf51f 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -21,7 +21,7 @@ jobs: matrix: sdk: [dev] steps: - - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 + - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 - uses: dart-lang/setup-dart@b64355ae6ca0b5d484f0106a033dd1388965d06d with: sdk: ${{ matrix.sdk }} @@ -48,7 +48,7 @@ jobs: os: [ubuntu-latest] sdk: [2.18.0, dev] steps: - - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 + - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 - uses: dart-lang/setup-dart@b64355ae6ca0b5d484f0106a033dd1388965d06d with: sdk: ${{ matrix.sdk }} From 347817c5b31f6b5eb7ca4af6fb55ec7555e96494 Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Wed, 8 Nov 2023 11:21:24 -0800 Subject: [PATCH 214/235] Latest lints, require Dart 3.1, use mixin (dart-lang/collection#322) --- pkgs/collection/.github/workflows/ci.yml | 2 +- pkgs/collection/CHANGELOG.md | 2 + pkgs/collection/analysis_options.yaml | 15 +-- pkgs/collection/lib/algorithms.dart | 2 +- pkgs/collection/lib/collection.dart | 2 +- pkgs/collection/lib/src/comparators.dart | 2 +- .../lib/src/empty_unmodifiable_set.dart | 2 +- pkgs/collection/lib/src/equality.dart | 12 +-- .../lib/src/unmodifiable_wrappers.dart | 6 +- pkgs/collection/lib/src/wrappers.dart | 4 +- pkgs/collection/pubspec.yaml | 4 +- pkgs/collection/test/algorithms_test.dart | 26 +++--- pkgs/collection/test/analysis_options.yaml | 2 + pkgs/collection/test/boollist_test.dart | 2 + .../test/canonicalized_map_test.dart | 6 +- .../test/combined_wrapper/iterable_test.dart | 4 +- .../test/combined_wrapper/map_test.dart | 55 ++++++++++- pkgs/collection/test/equality_test.dart | 8 +- pkgs/collection/test/extensions_test.dart | 32 +++---- pkgs/collection/test/functions_test.dart | 6 +- .../test/ignore_ascii_case_test.dart | 1 + pkgs/collection/test/priority_queue_test.dart | 15 +-- pkgs/collection/test/queue_list_test.dart | 2 +- pkgs/collection/test/union_set_test.dart | 13 +-- .../test/unmodifiable_collection_test.dart | 93 +------------------ pkgs/collection/test/wrapper_test.dart | 5 +- 26 files changed, 143 insertions(+), 180 deletions(-) diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index 51aaf51f..ac62fe04 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -46,7 +46,7 @@ jobs: matrix: # Add macos-latest and/or windows-latest if relevant for this package. os: [ubuntu-latest] - sdk: [2.18.0, dev] + sdk: [3.1.0, dev] steps: - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 - uses: dart-lang/setup-dart@b64355ae6ca0b5d484f0106a033dd1388965d06d diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index c27f014f..05b08995 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -2,6 +2,8 @@ - Adds `shuffled` to `IterableExtension`. - Shuffle `IterableExtension.sample` results. +- Require Dart `^3.1.0` +- Mark "mixin" classes as `mixin`. ## 1.18.0 diff --git a/pkgs/collection/analysis_options.yaml b/pkgs/collection/analysis_options.yaml index ea2d1c47..3321f3b1 100644 --- a/pkgs/collection/analysis_options.yaml +++ b/pkgs/collection/analysis_options.yaml @@ -1,4 +1,4 @@ -include: package:lints/recommended.yaml +include: package:dart_flutter_team_lints/analysis_options.yaml analyzer: language: @@ -6,24 +6,11 @@ analyzer: linter: rules: - - always_declare_return_types - - avoid_dynamic_calls - avoid_unused_constructor_parameters - cancel_subscriptions - - directives_ordering - - lines_longer_than_80_chars - literal_only_boolean_expressions - missing_whitespace_between_adjacent_strings - no_adjacent_strings_in_list - no_runtimeType_toString - - omit_local_variable_types - package_api_docs - - prefer_relative_imports - - prefer_single_quotes - - test_types_in_equals - - throw_in_finally - - type_annotate_public_apis - - unawaited_futures - unnecessary_await_in_return - - unnecessary_lambdas - - use_super_parameters diff --git a/pkgs/collection/lib/algorithms.dart b/pkgs/collection/lib/algorithms.dart index 7054141e..71a9f67b 100644 --- a/pkgs/collection/lib/algorithms.dart +++ b/pkgs/collection/lib/algorithms.dart @@ -7,4 +7,4 @@ library dart.pkg.collection.algorithms; export 'src/algorithms.dart' - show binarySearch, insertionSort, lowerBound, mergeSort, shuffle, reverse; + show binarySearch, insertionSort, lowerBound, mergeSort, reverse, shuffle; diff --git a/pkgs/collection/lib/collection.dart b/pkgs/collection/lib/collection.dart index f6f4ae3c..73ec1797 100644 --- a/pkgs/collection/lib/collection.dart +++ b/pkgs/collection/lib/collection.dart @@ -3,7 +3,7 @@ // BSD-style license that can be found in the LICENSE file. export 'src/algorithms.dart' - show binarySearch, insertionSort, lowerBound, mergeSort, shuffle, reverse; + show binarySearch, insertionSort, lowerBound, mergeSort, reverse, shuffle; export 'src/boollist.dart'; export 'src/canonicalized_map.dart'; export 'src/combined_wrappers/combined_iterable.dart'; diff --git a/pkgs/collection/lib/src/comparators.dart b/pkgs/collection/lib/src/comparators.dart index 0d223c9f..6e5d3631 100644 --- a/pkgs/collection/lib/src/comparators.dart +++ b/pkgs/collection/lib/src/comparators.dart @@ -99,7 +99,7 @@ int compareAsciiUpperCase(String a, String b) { bUpperCase -= _asciiCaseBit; } if (aUpperCase != bUpperCase) return (aUpperCase - bUpperCase).sign; - if (defaultResult == 0) defaultResult = (aChar - bChar); + if (defaultResult == 0) defaultResult = aChar - bChar; } if (b.length > a.length) return -1; return defaultResult.sign; diff --git a/pkgs/collection/lib/src/empty_unmodifiable_set.dart b/pkgs/collection/lib/src/empty_unmodifiable_set.dart index 12e6f4f5..74fd39a1 100644 --- a/pkgs/collection/lib/src/empty_unmodifiable_set.dart +++ b/pkgs/collection/lib/src/empty_unmodifiable_set.dart @@ -34,7 +34,7 @@ class EmptyUnmodifiableSet extends IterableBase E singleWhere(bool Function(E) test, {E Function()? orElse}) => orElse != null ? orElse() : throw StateError('No element'); @override - Iterable whereType() => Iterable.empty(); + Iterable whereType() => Iterable.empty(); @override Set toSet() => {}; @override diff --git a/pkgs/collection/lib/src/equality.dart b/pkgs/collection/lib/src/equality.dart index 826446d8..0e1df23d 100644 --- a/pkgs/collection/lib/src/equality.dart +++ b/pkgs/collection/lib/src/equality.dart @@ -138,10 +138,10 @@ class IterableEquality implements Equality> { var c = _elementEquality.hash(element); hash = (hash + c) & _hashMask; hash = (hash + (hash << 10)) & _hashMask; - hash ^= (hash >> 6); + hash ^= hash >> 6; } hash = (hash + (hash << 3)) & _hashMask; - hash ^= (hash >> 11); + hash ^= hash >> 11; hash = (hash + (hash << 15)) & _hashMask; return hash; } @@ -190,10 +190,10 @@ class ListEquality implements Equality> { var c = _elementEquality.hash(list[i]); hash = (hash + c) & _hashMask; hash = (hash + (hash << 10)) & _hashMask; - hash ^= (hash >> 6); + hash ^= hash >> 6; } hash = (hash + (hash << 3)) & _hashMask; - hash ^= (hash >> 11); + hash ^= hash >> 11; hash = (hash + (hash << 15)) & _hashMask; return hash; } @@ -240,7 +240,7 @@ abstract class _UnorderedEquality> hash = (hash + c) & _hashMask; } hash = (hash + (hash << 3)) & _hashMask; - hash ^= (hash >> 11); + hash ^= hash >> 11; hash = (hash + (hash << 15)) & _hashMask; return hash; } @@ -349,7 +349,7 @@ class MapEquality implements Equality> { hash = (hash + 3 * keyHash + 7 * valueHash) & _hashMask; } hash = (hash + (hash << 3)) & _hashMask; - hash ^= (hash >> 11); + hash ^= hash >> 11; hash = (hash + (hash << 15)) & _hashMask; return hash; } diff --git a/pkgs/collection/lib/src/unmodifiable_wrappers.dart b/pkgs/collection/lib/src/unmodifiable_wrappers.dart index c3c65d57..3b211c07 100644 --- a/pkgs/collection/lib/src/unmodifiable_wrappers.dart +++ b/pkgs/collection/lib/src/unmodifiable_wrappers.dart @@ -25,7 +25,7 @@ class NonGrowableListView extends DelegatingList /// Mixin class that implements a throwing version of all list operations that /// change the List's length. -abstract class NonGrowableListMixin implements List { +abstract mixin class NonGrowableListMixin implements List { static Never _throw() { throw UnsupportedError('Cannot change the length of a fixed-length list'); } @@ -116,7 +116,7 @@ class UnmodifiableSetView extends DelegatingSet /// Mixin class that implements a throwing version of all set operations that /// change the Set. -abstract /*mixin*/ class UnmodifiableSetMixin implements Set { +abstract mixin class UnmodifiableSetMixin implements Set { static Never _throw() { throw UnsupportedError('Cannot modify an unmodifiable Set'); } @@ -164,7 +164,7 @@ abstract /*mixin*/ class UnmodifiableSetMixin implements Set { /// Mixin class that implements a throwing version of all map operations that /// change the Map. -abstract /*mixin*/ class UnmodifiableMapMixin implements Map { +abstract mixin class UnmodifiableMapMixin implements Map { static Never _throw() { throw UnsupportedError('Cannot modify an unmodifiable Map'); } diff --git a/pkgs/collection/lib/src/wrappers.dart b/pkgs/collection/lib/src/wrappers.dart index bbd5dab1..859d0bcc 100644 --- a/pkgs/collection/lib/src/wrappers.dart +++ b/pkgs/collection/lib/src/wrappers.dart @@ -793,7 +793,7 @@ class MapValueSet extends _DelegatingIterableBase implements Set { @override void removeWhere(bool Function(V) test) { - var toRemove = []; + var toRemove = []; _baseMap.forEach((key, value) { if (test(value)) toRemove.add(key); }); @@ -811,7 +811,7 @@ class MapValueSet extends _DelegatingIterableBase implements Set { valuesToRetain.add(_baseMap[key] ?? null as V); } - var keysToRemove = []; + var keysToRemove = []; _baseMap.forEach((k, v) { if (!valuesToRetain.contains(v)) keysToRemove.add(k); }); diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index b7c9919f..4d70d7ce 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -9,8 +9,8 @@ topics: - collections environment: - sdk: ">=2.18.0 <4.0.0" + sdk: ^3.1.0 dev_dependencies: - lints: ^2.0.1 + dart_flutter_team_lints: ^2.0.0 test: ^1.16.0 diff --git a/pkgs/collection/test/algorithms_test.dart b/pkgs/collection/test/algorithms_test.dart index c2ffb7f2..41603dd8 100644 --- a/pkgs/collection/test/algorithms_test.dart +++ b/pkgs/collection/test/algorithms_test.dart @@ -3,6 +3,8 @@ // BSD-style license that can be found in the LICENSE file. /// Tests algorithm utilities. +library; + import 'dart:math'; import 'package:collection/collection.dart'; @@ -13,7 +15,7 @@ void main() { void testShuffle(List list) { var copy = list.toList(); shuffle(list); - expect(UnorderedIterableEquality().equals(list, copy), isTrue); + expect(const UnorderedIterableEquality().equals(list, copy), isTrue); } test('Shuffle 0', () { @@ -270,25 +272,25 @@ void main() { test('$name2: Same #$n', () { var list = List.generate(n, (i) => OC(i, 0)); // Should succeed. Bad implementations of, e.g., quicksort can diverge. - sort(list, ocOrder, compareInt); + sort(list, _ocOrder, _compareInt); }); test('$name: Pre-sorted #$n', () { var list = List.generate(n, (i) => OC(-i, i)); var expected = list.toList(); - sort(list, ocOrder, compareInt); + sort(list, _ocOrder, _compareInt); // Elements have not moved. expect(list, expected); }); test('$name: Reverse-sorted #$n', () { var list = List.generate(n, (i) => OC(i, -i)); - sort(list, ocOrder, compareInt); - expectSorted(list, ocOrder, compareInt); + sort(list, _ocOrder, _compareInt); + expectSorted(list, _ocOrder, _compareInt); }); test('$name: Random #$n', () { var random = Random(); var list = List.generate(n, (i) => OC(i, random.nextInt(n))); - sort(list, ocOrder, compareInt); - expectSorted(list, ocOrder, compareInt); + sort(list, _ocOrder, _compareInt); + expectSorted(list, _ocOrder, _compareInt); }); test('$name: Sublist #$n', () { var random = Random(); @@ -296,8 +298,8 @@ void main() { var original = list.toList(); var start = n ~/ 4; var end = start * 3; - sort(list, ocOrder, compareInt, start, end); - expectSorted(list, ocOrder, compareInt, start, end); + sort(list, _ocOrder, _compareInt, start, end); + expectSorted(list, _ocOrder, _compareInt, start, end); expect(list.sublist(0, start), original.sublist(0, start)); expect(list.sublist(end), original.sublist(end)); }); @@ -374,7 +376,6 @@ class C { } int compareC(C one, C other) => one.id - other.id; -int cId(C c) => c.id; /// Class naturally ordered by its first constructor argument. class OC implements Comparable { @@ -389,10 +390,9 @@ class OC implements Comparable { String toString() => 'OC[$id,$order]'; } -int ocId(OC oc) => oc.id; -int ocOrder(OC oc) => oc.order; +int _ocOrder(OC oc) => oc.order; -int compareInt(int a, int b) => a - b; +int _compareInt(int a, int b) => a - b; /// Check that a list is sorted according to [compare] of [keyOf] of elements. void expectSorted( diff --git a/pkgs/collection/test/analysis_options.yaml b/pkgs/collection/test/analysis_options.yaml index 3d47f949..899b0f33 100644 --- a/pkgs/collection/test/analysis_options.yaml +++ b/pkgs/collection/test/analysis_options.yaml @@ -4,3 +4,5 @@ include: ../analysis_options.yaml analyzer: errors: avoid_dynamic_calls: ignore + inference_failure_on_collection_literal: ignore + inference_failure_on_instance_creation: ignore diff --git a/pkgs/collection/test/boollist_test.dart b/pkgs/collection/test/boollist_test.dart index aa9e3982..da7b7364 100644 --- a/pkgs/collection/test/boollist_test.dart +++ b/pkgs/collection/test/boollist_test.dart @@ -44,10 +44,12 @@ void main() { var b = BoolList(1024, fill: false); expect(() { + // ignore: unnecessary_statements b[-1]; }, throwsRangeError); expect(() { + // ignore: unnecessary_statements b[1024]; }, throwsRangeError); }); diff --git a/pkgs/collection/test/canonicalized_map_test.dart b/pkgs/collection/test/canonicalized_map_test.dart index 34e4e8d9..9ae46579 100644 --- a/pkgs/collection/test/canonicalized_map_test.dart +++ b/pkgs/collection/test/canonicalized_map_test.dart @@ -147,9 +147,9 @@ void main() { test('addEntries adds key-value pairs to the map', () { map.addEntries([ - MapEntry('1', 'value 1'), - MapEntry('01', 'value 01'), - MapEntry('2', 'value 2'), + const MapEntry('1', 'value 1'), + const MapEntry('01', 'value 01'), + const MapEntry('2', 'value 2'), ]); expect(map, {'01': 'value 01', '2': 'value 2'}); }); diff --git a/pkgs/collection/test/combined_wrapper/iterable_test.dart b/pkgs/collection/test/combined_wrapper/iterable_test.dart index 9fb9e390..d5c90bfe 100644 --- a/pkgs/collection/test/combined_wrapper/iterable_test.dart +++ b/pkgs/collection/test/combined_wrapper/iterable_test.dart @@ -22,12 +22,12 @@ void main() { }); test('should function as an empty iterable when no iterables are passed', () { - var empty = CombinedIterableView([]); + var empty = const CombinedIterableView([]); expect(empty, isEmpty); }); test('should function as an empty iterable with all empty iterables', () { - var empty = CombinedIterableView([[], [], []]); + var empty = const CombinedIterableView([[], [], []]); expect(empty, isEmpty); }); diff --git a/pkgs/collection/test/combined_wrapper/map_test.dart b/pkgs/collection/test/combined_wrapper/map_test.dart index ad6ccc20..9b9a1a83 100644 --- a/pkgs/collection/test/combined_wrapper/map_test.dart +++ b/pkgs/collection/test/combined_wrapper/map_test.dart @@ -7,8 +7,6 @@ import 'dart:collection'; import 'package:collection/collection.dart'; import 'package:test/test.dart'; -import '../unmodifiable_collection_test.dart' as common; - void main() { var map1 = const {1: 1, 2: 2, 3: 3}; var map2 = const {4: 4, 5: 5, 6: 6}; @@ -24,10 +22,10 @@ void main() { ..addAll(map3); // In every way possible this should test the same as an UnmodifiableMapView. - common.testReadMap( + _testReadMap( concat, CombinedMapView([map1, map2, map3, map4]), 'CombinedMapView'); - common.testReadMap( + _testReadMap( concat, CombinedMapView([map1, {}, map2, {}, map3, {}, map4, {}]), 'CombinedMapView (some empty)'); @@ -69,3 +67,52 @@ void main() { expect(keys.toList(), keys.toList()); }); } + +void _testReadMap(Map original, Map wrapped, String name) { + test('$name length', () { + expect(wrapped.length, equals(original.length)); + }); + + test('$name isEmpty', () { + expect(wrapped.isEmpty, equals(original.isEmpty)); + }); + + test('$name isNotEmpty', () { + expect(wrapped.isNotEmpty, equals(original.isNotEmpty)); + }); + + test('$name operator[]', () { + expect(wrapped[0], equals(original[0])); + expect(wrapped[999], equals(original[999])); + }); + + test('$name containsKey', () { + expect(wrapped.containsKey(0), equals(original.containsKey(0))); + expect(wrapped.containsKey(999), equals(original.containsKey(999))); + }); + + test('$name containsValue', () { + expect(wrapped.containsValue(0), equals(original.containsValue(0))); + expect(wrapped.containsValue(999), equals(original.containsValue(999))); + }); + + test('$name forEach', () { + var origCnt = 0; + var wrapCnt = 0; + wrapped.forEach((k, v) { + wrapCnt += 1 << k + 3 * v; + }); + original.forEach((k, v) { + origCnt += 1 << k + 3 * v; + }); + expect(wrapCnt, equals(origCnt)); + }); + + test('$name keys', () { + expect(wrapped.keys, orderedEquals(original.keys)); + }); + + test('$name values', () { + expect(wrapped.values, orderedEquals(original.values)); + }); +} diff --git a/pkgs/collection/test/equality_test.dart b/pkgs/collection/test/equality_test.dart index 4786b407..ce58df64 100644 --- a/pkgs/collection/test/equality_test.dart +++ b/pkgs/collection/test/equality_test.dart @@ -240,10 +240,10 @@ void main() { }); test('Equality accepts null', () { - var ie = IterableEquality(); - var le = ListEquality(); - var se = SetEquality(); - var me = MapEquality(); + var ie = const IterableEquality(); + var le = const ListEquality(); + var se = const SetEquality(); + var me = const MapEquality(); expect(ie.equals(null, null), true); expect(ie.equals([], null), false); expect(ie.equals(null, []), false); diff --git a/pkgs/collection/test/extensions_test.dart b/pkgs/collection/test/extensions_test.dart index 229d6e2d..3b1401a5 100644 --- a/pkgs/collection/test/extensions_test.dart +++ b/pkgs/collection/test/extensions_test.dart @@ -2,7 +2,7 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -import 'dart:math' show pow, Random; +import 'dart:math' show Random, pow; import 'package:collection/collection.dart'; import 'package:test/test.dart'; @@ -48,7 +48,8 @@ void main() { var input = iterable([1, 2, 3, 4, 5]); var copy = [...input]; var shuffled = input.shuffled(); - expect(UnorderedIterableEquality().equals(input, shuffled), isTrue); + expect(const UnorderedIterableEquality().equals(input, shuffled), + isTrue); // Check that the original list isn't touched expect(input, copy); }); @@ -342,7 +343,7 @@ void main() { }); group('.expandIndexed', () { test('empty', () { - expect(iterable([]).expandIndexed(unreachable), isEmpty); + expect(iterable([]).expandIndexed(unreachable), isEmpty); }); test('empty result', () { expect(iterable(['a', 'b']).expandIndexed((i, v) => []), isEmpty); @@ -616,7 +617,7 @@ void main() { }); test('no split', () { var trace = []; - bool log(x) { + bool log(int x) { trace.add(x); return false; } @@ -651,7 +652,7 @@ void main() { }); test('no split', () { var trace = []; - bool log(i, x) { + bool log(int i, int x) { trace ..add('$i') ..add(x); @@ -695,7 +696,7 @@ void main() { }); test('no split', () { var trace = []; - bool log(x) { + bool log(int x) { trace.add(x); return false; } @@ -733,7 +734,7 @@ void main() { }); test('no split', () { var trace = []; - bool log(i, x) { + bool log(int i, int x) { trace ..add('$i') ..add(x); @@ -774,7 +775,7 @@ void main() { }); test('no split', () { var trace = []; - bool log(x, y) { + bool log(int x, int y) { trace.add([x, y]); return false; } @@ -812,7 +813,7 @@ void main() { }); test('no split', () { var trace = []; - bool log(i, x, y) { + bool log(int i, int x, int y) { trace.add([i, x, y]); return false; } @@ -1191,13 +1192,15 @@ void main() { var result = input.sample(10, random); expect(result.length, 10); expect(result.isSorted(cmpInt), isFalse); - expect(UnorderedIterableEquality().equals(input, result), isTrue); + expect( + const UnorderedIterableEquality().equals(input, result), isTrue); }); test('for overlengthed samples of input', () { var result = input.sample(20, random); expect(result.length, 10); expect(result.isSorted(cmpInt), isFalse); - expect(UnorderedIterableEquality().equals(input, result), isTrue); + expect( + const UnorderedIterableEquality().equals(input, result), isTrue); }); }); }); @@ -1523,7 +1526,7 @@ void main() { list.shuffleRange(0, 3); expect(list.getRange(3, 5), [4, 5]); expect(list.getRange(0, 3), unorderedEquals([1, 2, 3])); - } while (ListEquality().equals(list.sublist(0, 3), [1, 2, 3])); + } while (const ListEquality().equals(list.sublist(0, 3), [1, 2, 3])); // Won't terminate if shuffle *never* moves a value. }); }); @@ -1803,7 +1806,7 @@ void main() { }); group('.expandIndexed', () { test('empty', () { - expect([].expandIndexed(unreachable), isEmpty); + expect([].expandIndexed(unreachable), isEmpty); }); test('empty result', () { expect(['a', 'b'].expandIndexed((i, v) => []), isEmpty); @@ -1971,9 +1974,6 @@ int Function(int, int) cmpMod(int mod) => (a, b) => a ~/ mod - b ~/ mod; /// Compares strings lexically. int cmpString(String a, String b) => a.compareTo(b); -/// Compares strings inverse lexically. -int cmpStringInverse(String a, String b) => b.compareTo(a); - /// Compares strings by length. int cmpStringLength(String a, String b) => a.length - b.length; diff --git a/pkgs/collection/test/functions_test.dart b/pkgs/collection/test/functions_test.dart index 359265c1..cc973271 100644 --- a/pkgs/collection/test/functions_test.dart +++ b/pkgs/collection/test/functions_test.dart @@ -19,7 +19,7 @@ void main() { test('with no callbacks, returns a copy of the map', () { var map = {'foo': 1, 'bar': 2}; // ignore: deprecated_member_use_from_same_package - var result = mapMap(map); + var result = mapMap(map); expect(result, equals({'foo': 1, 'bar': 2})); // The resulting map should be a copy. @@ -30,7 +30,7 @@ void main() { test("maps the map's keys", () { expect( // ignore: deprecated_member_use_from_same_package - mapMap({'foo': 1, 'bar': 2}, + mapMap({'foo': 1, 'bar': 2}, key: (dynamic key, dynamic value) => key[value]), equals({'o': 1, 'r': 2})); }); @@ -38,7 +38,7 @@ void main() { test("maps the map's values", () { expect( // ignore: deprecated_member_use_from_same_package - mapMap({'foo': 1, 'bar': 2}, + mapMap({'foo': 1, 'bar': 2}, value: (dynamic key, dynamic value) => key[value]), equals({'foo': 'o', 'bar': 'r'})); }); diff --git a/pkgs/collection/test/ignore_ascii_case_test.dart b/pkgs/collection/test/ignore_ascii_case_test.dart index 20ad70f5..78f54a2a 100644 --- a/pkgs/collection/test/ignore_ascii_case_test.dart +++ b/pkgs/collection/test/ignore_ascii_case_test.dart @@ -3,6 +3,7 @@ // BSD-style license that can be found in the LICENSE file. /// Tests case-ignoring compare and equality. +library; import 'package:collection/collection.dart'; import 'package:test/test.dart'; diff --git a/pkgs/collection/test/priority_queue_test.dart b/pkgs/collection/test/priority_queue_test.dart index 96e2c154..f07a1a39 100644 --- a/pkgs/collection/test/priority_queue_test.dart +++ b/pkgs/collection/test/priority_queue_test.dart @@ -3,6 +3,8 @@ // BSD-style license that can be found in the LICENSE file. /// Tests priority queue implementations utilities. +library; + import 'package:collection/src/priority_queue.dart'; import 'package:test/test.dart'; @@ -17,7 +19,7 @@ void main() { void testDefault() { test('PriorityQueue() returns a HeapPriorityQueue', () { - expect(PriorityQueue(), TypeMatcher>()); + expect(PriorityQueue(), const TypeMatcher>()); }); testInt(PriorityQueue.new); testCustom(PriorityQueue.new); @@ -37,7 +39,7 @@ void testCustom( testQueue('Custom:$count/compare', () => create(compare), List.generate(count, C.new), C(count)); testQueue('Custom:$count/compareNeg', () => create(compareNeg), - List.generate(count, (x) => C(count - x)), C(0)); + List.generate(count, (x) => C(count - x)), const C(0)); } } @@ -171,7 +173,8 @@ void testDuplicates() { // Check how the heap handles duplicate, or equal-but-not-identical, values. test('duplicates', () { var q = HeapPriorityQueue(compare); - var c1 = C(0); + var c1 = const C(0); + // ignore: prefer_const_constructors var c2 = C(0); // Can contain the same element more than once. @@ -218,9 +221,9 @@ void testNullable() { ? -1 : compare(a, b); - var c1 = C(1); - var c2 = C(2); - var c3 = C(3); + var c1 = const C(1); + var c2 = const C(2); + var c3 = const C(3); test('nulls first', () { var q = HeapPriorityQueue(nullCompareFirst); diff --git a/pkgs/collection/test/queue_list_test.dart b/pkgs/collection/test/queue_list_test.dart index a8cda88f..1550f927 100644 --- a/pkgs/collection/test/queue_list_test.dart +++ b/pkgs/collection/test/queue_list_test.dart @@ -304,4 +304,4 @@ QueueList withInternalGap() { /// Returns a matcher that expects that a closure throws a /// [ConcurrentModificationError]. final throwsConcurrentModificationError = - throwsA(TypeMatcher()); + throwsA(const TypeMatcher()); diff --git a/pkgs/collection/test/union_set_test.dart b/pkgs/collection/test/union_set_test.dart index d8897a4e..d06faf3d 100644 --- a/pkgs/collection/test/union_set_test.dart +++ b/pkgs/collection/test/union_set_test.dart @@ -39,7 +39,7 @@ void main() { }); group('with multiple disjoint sets', () { - dynamic set; + late Set set; setUp(() { set = UnionSet.from([ {1, 2}, @@ -78,7 +78,7 @@ void main() { }); group('with multiple overlapping sets', () { - dynamic set; + late Set set; setUp(() { set = UnionSet.from([ {1, 2, 3}, @@ -107,7 +107,8 @@ void main() { }); test('lookup() returns the first element in an ordered context', () { - var duration1 = Duration(seconds: 0); + var duration1 = const Duration(seconds: 0); + // ignore: prefer_const_constructors var duration2 = Duration(seconds: 0); expect(duration1, equals(duration2)); expect(duration1, isNot(same(duration2))); @@ -117,7 +118,7 @@ void main() { {duration2} ]); - expect(set.lookup(Duration(seconds: 0)), same(duration1)); + expect(set.lookup(const Duration(seconds: 0)), same(duration1)); }); test('toSet() returns the union of all the sets', () { @@ -131,7 +132,7 @@ void main() { }); group('after an inner set was modified', () { - dynamic set; + late Set set; setUp(() { var innerSet = {3, 7}; set = UnionSet.from([ @@ -175,7 +176,7 @@ void main() { }); group('after the outer set was modified', () { - dynamic set; + late Set set; setUp(() { var innerSet = {6}; var outerSet = { diff --git a/pkgs/collection/test/unmodifiable_collection_test.dart b/pkgs/collection/test/unmodifiable_collection_test.dart index a0cb89cd..12a9a0a7 100644 --- a/pkgs/collection/test/unmodifiable_collection_test.dart +++ b/pkgs/collection/test/unmodifiable_collection_test.dart @@ -276,6 +276,7 @@ void testReadList(List original, List wrapped, String name) { test('$name - []', () { if (original.isEmpty) { expect(() { + // ignore: unnecessary_statements wrapped[0]; }, throwsRangeError); } else { @@ -315,7 +316,7 @@ void testReadList(List original, List wrapped, String name) { void testNoWriteList(List original, List wrapped, String name) { var copy = List.of(original); - void testThrows(name, thunk) { + void testThrows(String name, void Function() thunk) { test(name, () { expect(thunk, throwsUnsupportedError); // No modifications happened. @@ -396,7 +397,7 @@ void testNoChangeLengthList( List original, List wrapped, String name) { var copy = List.of(original); - void testThrows(String name, thunk) { + void testThrows(String name, void Function() thunk) { test(name, () { expect(thunk, throwsUnsupportedError); // No modifications happened. @@ -490,7 +491,7 @@ void testReadSet(Set original, Set wrapped, String name) { void testNoChangeSet(Set original, Set wrapped, String name) { var originalElements = original.toList(); - void testThrows(name, thunk) { + void testThrows(String name, void Function() thunk) { test(name, () { expect(thunk, throwsUnsupportedError); // No modifications happened. @@ -538,89 +539,3 @@ void testNoChangeSet(Set original, Set wrapped, String name) { wrapped.clear(); }); } - -void testReadMap(Map original, Map wrapped, String name) { - test('$name length', () { - expect(wrapped.length, equals(original.length)); - }); - - test('$name isEmpty', () { - expect(wrapped.isEmpty, equals(original.isEmpty)); - }); - - test('$name isNotEmpty', () { - expect(wrapped.isNotEmpty, equals(original.isNotEmpty)); - }); - - test('$name operator[]', () { - expect(wrapped[0], equals(original[0])); - expect(wrapped[999], equals(original[999])); - }); - - test('$name containsKey', () { - expect(wrapped.containsKey(0), equals(original.containsKey(0))); - expect(wrapped.containsKey(999), equals(original.containsKey(999))); - }); - - test('$name containsValue', () { - expect(wrapped.containsValue(0), equals(original.containsValue(0))); - expect(wrapped.containsValue(999), equals(original.containsValue(999))); - }); - - test('$name forEach', () { - var origCnt = 0; - var wrapCnt = 0; - wrapped.forEach((k, v) { - wrapCnt += 1 << k + 3 * v; - }); - original.forEach((k, v) { - origCnt += 1 << k + 3 * v; - }); - expect(wrapCnt, equals(origCnt)); - }); - - test('$name keys', () { - expect(wrapped.keys, orderedEquals(original.keys)); - }); - - test('$name values', () { - expect(wrapped.values, orderedEquals(original.values)); - }); -} - -void testNoChangeMap( - Map original, Map wrapped, String name) { - var copy = Map.of(original); - - void testThrows(name, thunk) { - test(name, () { - expect(thunk, throwsUnsupportedError); - // No modifications happened. - expect(original, equals(copy)); - }); - } - - testThrows('$name operator[]= throws', () { - wrapped[0] = 42; - }); - - testThrows('$name putIfAbsent throws', () { - wrapped.putIfAbsent(0, () => 42); - }); - - testThrows('$name addAll throws', () { - wrapped.addAll({42: 42}); - }); - - testThrows('$name addAll empty throws', () { - wrapped.addAll({}); - }); - - testThrows('$name remove throws', () { - wrapped.remove(0); - }); - - testThrows('$name clear throws', () { - wrapped.clear(); - }); -} diff --git a/pkgs/collection/test/wrapper_test.dart b/pkgs/collection/test/wrapper_test.dart index c9785e8e..65a693f7 100644 --- a/pkgs/collection/test/wrapper_test.dart +++ b/pkgs/collection/test/wrapper_test.dart @@ -2,9 +2,12 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. -/// Tests wrapper utilities. +// ignore_for_file: unnecessary_statements +/// Tests wrapper utilities. @TestOn('vm') +library; + import 'dart:collection'; import 'dart:mirrors'; From b8c9297e6d552af50d158165f358c22c915901e4 Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Mon, 20 Nov 2023 16:44:02 -0800 Subject: [PATCH 215/235] Avoid setRange with potentially incompatible types (dart-lang/collection#320) Fixes dart-lang/collection#317 Use `sublist` on the input to get a list with the same runtime generic as the input instead of constructing a new list with the static generic. --- pkgs/collection/CHANGELOG.md | 2 ++ pkgs/collection/lib/src/algorithms.dart | 4 ++-- pkgs/collection/test/algorithms_test.dart | 13 +++++++++++++ 3 files changed, 17 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 05b08995..e38e1a8c 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -2,6 +2,8 @@ - Adds `shuffled` to `IterableExtension`. - Shuffle `IterableExtension.sample` results. +- Fix `mergeSort` when the runtime iterable generic is a subtype of the static + generic. - Require Dart `^3.1.0` - Mark "mixin" classes as `mixin`. diff --git a/pkgs/collection/lib/src/algorithms.dart b/pkgs/collection/lib/src/algorithms.dart index 5833bbd1..f5ea8d3d 100644 --- a/pkgs/collection/lib/src/algorithms.dart +++ b/pkgs/collection/lib/src/algorithms.dart @@ -232,7 +232,7 @@ void mergeSort(List elements, var middle = start + firstLength; var secondLength = end - middle; // secondLength is always the same as firstLength, or one greater. - var scratchSpace = List.filled(secondLength, elements[start]); + var scratchSpace = elements.sublist(0, secondLength); _mergeSort(elements, identity, compare, middle, end, scratchSpace, 0); var firstTarget = end - firstLength; _mergeSort( @@ -268,7 +268,7 @@ void mergeSortBy(List elements, K Function(E element) keyOf, var firstLength = middle - start; var secondLength = end - middle; // secondLength is always the same as firstLength, or one greater. - var scratchSpace = List.filled(secondLength, elements[start]); + var scratchSpace = elements.sublist(0, secondLength); _mergeSort(elements, keyOf, compare, middle, end, scratchSpace, 0); var firstTarget = end - firstLength; _mergeSort(elements, keyOf, compare, start, middle, elements, firstTarget); diff --git a/pkgs/collection/test/algorithms_test.dart b/pkgs/collection/test/algorithms_test.dart index 41603dd8..4bc1d54b 100644 --- a/pkgs/collection/test/algorithms_test.dart +++ b/pkgs/collection/test/algorithms_test.dart @@ -368,6 +368,19 @@ void main() { reverse(l, 0, 6); expect(l, equals([2, 1, 4, 3, 6, 5])); }); + + test('mergeSort works when runtime generic is a subtype of the static type', + () { + // Regression test for https://github.com/dart-lang/collection/issues/317 + final length = 1000; // Larger than _mergeSortLimit + // Out of order list, with first half guaranteed to empty first during + // merge. + final list = [ + for (var i = 0; i < length / 2; i++) -i, + for (var i = 0; i < length / 2; i++) i + length, + ]; + expect(() => mergeSort(list), returnsNormally); + }); } class C { From 20ef186ac0e7cb049e5a8b750fc31987b77fc912 Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Thu, 1 Feb 2024 11:55:00 -0800 Subject: [PATCH 216/235] Test on dart2wasm (dart-lang/collection#333) --- pkgs/collection/.github/workflows/ci.yml | 3 +++ 1 file changed, 3 insertions(+) diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index ac62fe04..bcf55c7c 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -61,3 +61,6 @@ jobs: - name: Run Chrome tests run: dart test --platform chrome --test-randomize-ordering-seed=random if: always() && steps.install.outcome == 'success' + - name: Run Chrome tests - wasm + run: dart test --platform chrome --compiler dart2wasm + if: always() && steps.install.outcome == 'success' && matrix.sdk == 'dev' From 4f383efb9caadfe1838fa3eb6daede8567e5a221 Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Thu, 1 Feb 2024 23:12:16 +0000 Subject: [PATCH 217/235] Bump dart-lang/setup-dart from 1.6.0 to 1.6.2 (dart-lang/collection#334) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Bumps [dart-lang/setup-dart](https://github.com/dart-lang/setup-dart) from 1.6.0 to 1.6.2.
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v1.6.2

v1.6.1

  • Updated the google storage url for main channel releases.
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v1.6.1

  • Updated the google storage url for main channel releases.

v1.6.0

  • Enable provisioning of the latest Dart SDK patch release by specifying just the major and minor version (e.g. 3.2).

v1.5.1

  • No longer test the setup-dart action on pre-2.12 SDKs.
  • Upgrade JS interop code to use extension types (the new name for inline classes).
  • The upcoming rename of the be channel to main is now supported with forward compatibility that switches when the rename happens.

v1.5.0

  • Re-wrote the implementation of the action into Dart.
  • Auto-detect the platform architecture (x64, ia32, arm, arm64).
  • Improved the caching and download resilience of the sdk.
  • Added a new action output: dart-version - the installed version of the sdk.

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  • Automatically create OIDC token for pub.dev.
  • Add a reusable workflow for publishing.

v1.3.0

  • The install location of the Dart SDK is now available in an environment variable, DART_HOME (dart-lang/collection#43).
  • Fixed an issue where cached downloads could lead to unzip issues on self-hosted runners (dart-lang/collection#35).

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  • Fixed a path issue impacting git dependencies on Windows.

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--- pkgs/collection/.github/workflows/ci.yml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index bcf55c7c..b40c33ad 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -22,7 +22,7 @@ jobs: sdk: [dev] steps: - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 - - uses: dart-lang/setup-dart@b64355ae6ca0b5d484f0106a033dd1388965d06d + - uses: dart-lang/setup-dart@fedb1266e91cf51be2fdb382869461a434b920a3 with: sdk: ${{ matrix.sdk }} - id: install @@ -49,7 +49,7 @@ jobs: sdk: [3.1.0, dev] steps: - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 - - uses: dart-lang/setup-dart@b64355ae6ca0b5d484f0106a033dd1388965d06d + - uses: dart-lang/setup-dart@fedb1266e91cf51be2fdb382869461a434b920a3 with: sdk: ${{ matrix.sdk }} - id: install From 8718d4337e1bff99e297018883fa4d8e74d84dfc Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Wed, 1 May 2024 23:45:04 +0000 Subject: [PATCH 218/235] Bump actions/checkout from 4.1.1 to 4.1.4 (dart-lang/collection#339) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Bumps [actions/checkout](https://github.com/actions/checkout) from 4.1.1 to 4.1.4.
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We are investigating the following issue with this release and have rolled-back the v4 tag to point to v4.1.1

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--- pkgs/collection/.github/workflows/ci.yml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index b40c33ad..0b09c046 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -21,7 +21,7 @@ jobs: matrix: sdk: [dev] steps: - - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 + - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b - uses: dart-lang/setup-dart@fedb1266e91cf51be2fdb382869461a434b920a3 with: sdk: ${{ matrix.sdk }} @@ -48,7 +48,7 @@ jobs: os: [ubuntu-latest] sdk: [3.1.0, dev] steps: - - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 + - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b - uses: dart-lang/setup-dart@fedb1266e91cf51be2fdb382869461a434b920a3 with: sdk: ${{ matrix.sdk }} From 3ce5195b464aa9bf4a73688d753fbf36087b98c4 Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Thu, 2 May 2024 02:58:40 +0000 Subject: [PATCH 219/235] Bump dart-lang/setup-dart from 1.6.2 to 1.6.4 (dart-lang/collection#338) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Bumps [dart-lang/setup-dart](https://github.com/dart-lang/setup-dart) from 1.6.2 to 1.6.4.
Release notes

Sourced from dart-lang/setup-dart's releases.

v1.6.4

  • Rebuild JS code to include changes from v1.6.3

v1.6.3

Changelog

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v1.6.4

  • Rebuild JS code.

v1.6.3

v1.6.2

v1.6.1

  • Updated the google storage url for main channel releases.

v1.6.0

  • Enable provisioning of the latest Dart SDK patch release by specifying just the major and minor version (e.g. 3.2).

v1.5.1

  • No longer test the setup-dart action on pre-2.12 SDKs.
  • Upgrade JS interop code to use extension types (the new name for inline classes).
  • The upcoming rename of the be channel to main is now supported with forward compatibility that switches when the rename happens.

v1.5.0

  • Re-wrote the implementation of the action into Dart.
  • Auto-detect the platform architecture (x64, ia32, arm, arm64).
  • Improved the caching and download resilience of the sdk.
  • Added a new action output: dart-version - the installed version of the sdk.

v1.4.0

  • Automatically create OIDC token for pub.dev.
  • Add a reusable workflow for publishing.

v1.3.0

  • The install location of the Dart SDK is now available

... (truncated)

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--- pkgs/collection/.github/workflows/ci.yml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index 0b09c046..0c28fa5d 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -22,7 +22,7 @@ jobs: sdk: [dev] steps: - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b - - uses: dart-lang/setup-dart@fedb1266e91cf51be2fdb382869461a434b920a3 + - uses: dart-lang/setup-dart@f0ead981b4d9a35b37f30d36160575d60931ec30 with: sdk: ${{ matrix.sdk }} - id: install @@ -49,7 +49,7 @@ jobs: sdk: [3.1.0, dev] steps: - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b - - uses: dart-lang/setup-dart@fedb1266e91cf51be2fdb382869461a434b920a3 + - uses: dart-lang/setup-dart@f0ead981b4d9a35b37f30d36160575d60931ec30 with: sdk: ${{ matrix.sdk }} - id: install From a0a7c1253da9dcc99f667b798a1fd57ab6b8817d Mon Sep 17 00:00:00 2001 From: Devon Carew Date: Fri, 3 May 2024 15:07:21 -0700 Subject: [PATCH 220/235] blast_repo fixes (dart-lang/collection#340) dependabot --- pkgs/collection/.github/dependabot.yaml | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/pkgs/collection/.github/dependabot.yaml b/pkgs/collection/.github/dependabot.yaml index 439e796b..bf6b38a4 100644 --- a/pkgs/collection/.github/dependabot.yaml +++ b/pkgs/collection/.github/dependabot.yaml @@ -8,3 +8,7 @@ updates: interval: monthly labels: - autosubmit + groups: + github-actions: + patterns: + - "*" From 0b1aa628fbf491194fd482992e298742fbd3a3cd Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Tue, 28 May 2024 12:40:57 -0700 Subject: [PATCH 221/235] bump lints dep and fix (dart-lang/collection#344) --- pkgs/collection/lib/algorithms.dart | 2 +- pkgs/collection/lib/equality.dart | 2 +- pkgs/collection/lib/iterable_zip.dart | 2 +- pkgs/collection/lib/priority_queue.dart | 2 +- pkgs/collection/lib/src/algorithms.dart | 2 +- pkgs/collection/lib/wrappers.dart | 2 +- pkgs/collection/pubspec.yaml | 2 +- 7 files changed, 7 insertions(+), 7 deletions(-) diff --git a/pkgs/collection/lib/algorithms.dart b/pkgs/collection/lib/algorithms.dart index 71a9f67b..ac432423 100644 --- a/pkgs/collection/lib/algorithms.dart +++ b/pkgs/collection/lib/algorithms.dart @@ -4,7 +4,7 @@ /// Import `collection.dart` instead. @Deprecated('Will be removed in collection 2.0.0.') -library dart.pkg.collection.algorithms; +library; export 'src/algorithms.dart' show binarySearch, insertionSort, lowerBound, mergeSort, reverse, shuffle; diff --git a/pkgs/collection/lib/equality.dart b/pkgs/collection/lib/equality.dart index 021430ba..5dc158ca 100644 --- a/pkgs/collection/lib/equality.dart +++ b/pkgs/collection/lib/equality.dart @@ -4,6 +4,6 @@ /// Import `collection.dart` instead. @Deprecated('Will be removed in collection 2.0.0.') -library dart.pkg.collection.equality; +library; export 'src/equality.dart'; diff --git a/pkgs/collection/lib/iterable_zip.dart b/pkgs/collection/lib/iterable_zip.dart index 1ef55952..bd0b1ef0 100644 --- a/pkgs/collection/lib/iterable_zip.dart +++ b/pkgs/collection/lib/iterable_zip.dart @@ -4,6 +4,6 @@ /// Import `collection.dart` instead. @Deprecated('Will be removed in collection 2.0.0.') -library dart.pkg.collection.iterable_zip; +library; export 'src/iterable_zip.dart'; diff --git a/pkgs/collection/lib/priority_queue.dart b/pkgs/collection/lib/priority_queue.dart index 9ed8be80..7505ce47 100644 --- a/pkgs/collection/lib/priority_queue.dart +++ b/pkgs/collection/lib/priority_queue.dart @@ -4,6 +4,6 @@ /// Import `collection.dart` instead. @Deprecated('Will be removed in collection 2.0.0.') -library dart.pkg.collection.priority_queue; +library; export 'src/priority_queue.dart'; diff --git a/pkgs/collection/lib/src/algorithms.dart b/pkgs/collection/lib/src/algorithms.dart index f5ea8d3d..bb5843c8 100644 --- a/pkgs/collection/lib/src/algorithms.dart +++ b/pkgs/collection/lib/src/algorithms.dart @@ -3,7 +3,7 @@ // BSD-style license that can be found in the LICENSE file. /// A selection of data manipulation algorithms. -library pkg.collection.algorithms; +library; import 'dart:math' show Random; diff --git a/pkgs/collection/lib/wrappers.dart b/pkgs/collection/lib/wrappers.dart index d3a2ff65..be529ca2 100644 --- a/pkgs/collection/lib/wrappers.dart +++ b/pkgs/collection/lib/wrappers.dart @@ -4,7 +4,7 @@ /// Import `collection.dart` instead. @Deprecated('Will be removed in collection 2.0.0.') -library dart.pkg.collection.wrappers; +library; export 'src/canonicalized_map.dart'; export 'src/unmodifiable_wrappers.dart'; diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 4d70d7ce..7a92e220 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -12,5 +12,5 @@ environment: sdk: ^3.1.0 dev_dependencies: - dart_flutter_team_lints: ^2.0.0 + dart_flutter_team_lints: ^3.0.0 test: ^1.16.0 From f0785c90b8eebe7b45b1cccb4319bef623da9ee8 Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Sun, 2 Jun 2024 17:18:45 +0000 Subject: [PATCH 222/235] Bump actions/checkout from 4.1.4 to 4.1.6 in the github-actions group (dart-lang/collection#346) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Bumps the github-actions group with 1 update: [actions/checkout](https://github.com/actions/checkout). Updates `actions/checkout` from 4.1.4 to 4.1.6
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v4.1.6

What's Changed

Full Changelog: https://github.com/actions/checkout/compare/v4.1.5...v4.1.6

v4.1.5

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Full Changelog: https://github.com/actions/checkout/compare/v4.1.4...v4.1.5

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Changelog

v4.1.6

v4.1.5

v4.1.4

v4.1.3

v4.1.2

v4.1.1

v4.1.0

v4.0.0

v3.6.0

v3.5.3

v3.5.2

v3.5.1

... (truncated)

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--- pkgs/collection/.github/workflows/ci.yml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index 0c28fa5d..e21d2e94 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -21,7 +21,7 @@ jobs: matrix: sdk: [dev] steps: - - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b + - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 - uses: dart-lang/setup-dart@f0ead981b4d9a35b37f30d36160575d60931ec30 with: sdk: ${{ matrix.sdk }} @@ -48,7 +48,7 @@ jobs: os: [ubuntu-latest] sdk: [3.1.0, dev] steps: - - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b + - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 - uses: dart-lang/setup-dart@f0ead981b4d9a35b37f30d36160575d60931ec30 with: sdk: ${{ matrix.sdk }} From 112fb4d77a75e216db9819e27b86b083639fc24a Mon Sep 17 00:00:00 2001 From: Graciliano Monteiro Passos Date: Fri, 7 Jun 2024 19:46:31 -0300 Subject: [PATCH 223/235] `CanonicalizedMap`: added constructor `fromEntries`. (dart-lang/collection#347) --- pkgs/collection/CHANGELOG.md | 1 + pkgs/collection/lib/src/canonicalized_map.dart | 17 +++++++++++++++++ .../test/canonicalized_map_test.dart | 18 ++++++++++++++++++ 3 files changed, 36 insertions(+) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index e38e1a8c..31ac61e2 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -4,6 +4,7 @@ - Shuffle `IterableExtension.sample` results. - Fix `mergeSort` when the runtime iterable generic is a subtype of the static generic. +- `CanonicalizedMap`: added constructor `fromEntries`. - Require Dart `^3.1.0` - Mark "mixin" classes as `mixin`. diff --git a/pkgs/collection/lib/src/canonicalized_map.dart b/pkgs/collection/lib/src/canonicalized_map.dart index 84909246..41038431 100644 --- a/pkgs/collection/lib/src/canonicalized_map.dart +++ b/pkgs/collection/lib/src/canonicalized_map.dart @@ -46,6 +46,23 @@ class CanonicalizedMap implements Map { addAll(other); } + /// Creates a canonicalized map that is initialized with the key/value pairs + /// of [entries]. + /// + /// The [canonicalize] function should return the canonical value for the + /// given key. Keys with the same canonical value are considered equivalent. + /// + /// The [isValidKey] function is called before calling [canonicalize] for + /// methods that take arbitrary objects. It can be used to filter out keys + /// that can't be canonicalized. + CanonicalizedMap.fromEntries( + Iterable> entries, C Function(K key) canonicalize, + {bool Function(K key)? isValidKey}) + : _canonicalize = canonicalize, + _isValidKeyFn = isValidKey { + addEntries(entries); + } + CanonicalizedMap._( this._canonicalize, this._isValidKeyFn, Map> base) { _base.addAll(base); diff --git a/pkgs/collection/test/canonicalized_map_test.dart b/pkgs/collection/test/canonicalized_map_test.dart index 9ae46579..aadb7346 100644 --- a/pkgs/collection/test/canonicalized_map_test.dart +++ b/pkgs/collection/test/canonicalized_map_test.dart @@ -205,6 +205,24 @@ void main() { }); }); + group('CanonicalizedMap.fromEntries', () { + test('canonicalizes its keys', () { + var map = CanonicalizedMap.fromEntries( + {'1': 'value 1', '2': 'value 2', '3': 'value 3'}.entries, int.parse); + expect(map['01'], equals('value 1')); + expect(map['02'], equals('value 2')); + expect(map['03'], equals('value 3')); + }); + + test('uses the final value for collisions', () { + var map = CanonicalizedMap.fromEntries( + {'1': 'value 1', '01': 'value 2', '001': 'value 3'}.entries, + int.parse); + expect(map.length, equals(1)); + expect(map['0001'], equals('value 3')); + }); + }); + group('CanonicalizedMap.toMapOfCanonicalKeys', () { test('convert to a `Map`', () { var map = CanonicalizedMap.from( From 2193df6b6fc6579bbf53824446edb2b0d32392f3 Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Fri, 7 Jun 2024 15:58:46 -0700 Subject: [PATCH 224/235] Deprecate transitiveClosure (dart-lang/collection#336) The algorithm is implemented with a more flexible signature in `package:graphs`. See https://github.com/dart-lang/tools/issues/104 Use an `ignore_for_file` rather than comment each usage of the deprecated APIs. --- pkgs/collection/CHANGELOG.md | 1 + pkgs/collection/lib/src/functions.dart | 1 + pkgs/collection/test/functions_test.dart | 7 ++----- 3 files changed, 4 insertions(+), 5 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index 31ac61e2..d90c1577 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -7,6 +7,7 @@ - `CanonicalizedMap`: added constructor `fromEntries`. - Require Dart `^3.1.0` - Mark "mixin" classes as `mixin`. +- Deprecate `transitiveClosure`. Consider using `package:graphs`. ## 1.18.0 diff --git a/pkgs/collection/lib/src/functions.dart b/pkgs/collection/lib/src/functions.dart index 8f60b265..fb67c9f4 100644 --- a/pkgs/collection/lib/src/functions.dart +++ b/pkgs/collection/lib/src/functions.dart @@ -120,6 +120,7 @@ S? maxBy(Iterable values, T Function(S) orderBy, /// that vertex has no outgoing edges. This isn't checked, but if it's not /// satisfied, the function may crash or provide unexpected output. For example, /// `{"a": ["b"]}` is not valid, but `{"a": ["b"], "b": []}` is. +@Deprecated('This method will be removed. Consider using package:graphs.') Map> transitiveClosure(Map> graph) { // This uses [Warshall's algorithm][], modified not to add a vertex from each // node to itself. diff --git a/pkgs/collection/test/functions_test.dart b/pkgs/collection/test/functions_test.dart index cc973271..f6023033 100644 --- a/pkgs/collection/test/functions_test.dart +++ b/pkgs/collection/test/functions_test.dart @@ -2,6 +2,8 @@ // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. +// ignore_for_file: deprecated_member_use_from_same_package + import 'package:collection/collection.dart'; import 'package:test/test.dart'; @@ -9,7 +11,6 @@ void main() { group('mapMap()', () { test('with an empty map returns an empty map', () { expect( - // ignore: deprecated_member_use_from_same_package mapMap({}, key: expectAsync2((_, __) {}, count: 0), value: expectAsync2((_, __) {}, count: 0)), @@ -18,7 +19,6 @@ void main() { test('with no callbacks, returns a copy of the map', () { var map = {'foo': 1, 'bar': 2}; - // ignore: deprecated_member_use_from_same_package var result = mapMap(map); expect(result, equals({'foo': 1, 'bar': 2})); @@ -29,7 +29,6 @@ void main() { test("maps the map's keys", () { expect( - // ignore: deprecated_member_use_from_same_package mapMap({'foo': 1, 'bar': 2}, key: (dynamic key, dynamic value) => key[value]), equals({'o': 1, 'r': 2})); @@ -37,7 +36,6 @@ void main() { test("maps the map's values", () { expect( - // ignore: deprecated_member_use_from_same_package mapMap({'foo': 1, 'bar': 2}, value: (dynamic key, dynamic value) => key[value]), equals({'foo': 'o', 'bar': 'r'})); @@ -45,7 +43,6 @@ void main() { test("maps both the map's keys and values", () { expect( - // ignore: deprecated_member_use_from_same_package mapMap({'foo': 1, 'bar': 2}, key: (dynamic key, dynamic value) => '$key$value', value: (dynamic key, dynamic value) => key[value]), From 14b38e6f51cd35e0ffe48d3c1c8d9470b7cf8f3f Mon Sep 17 00:00:00 2001 From: Oleh Prypin Date: Sun, 9 Jun 2024 22:03:35 +0200 Subject: [PATCH 225/235] Deprecate whereNotNull from IterableNullableExtensions (dart-lang/collection#332) Dart SDK since 3.0 has an exact equivalent extension `nonNulls` in the core. --- pkgs/collection/CHANGELOG.md | 5 ++- .../lib/src/iterable_extensions.dart | 1 + pkgs/collection/test/extensions_test.dart | 42 ++++++++++++++++--- 3 files changed, 41 insertions(+), 7 deletions(-) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index d90c1577..f93bdbcf 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -5,9 +5,12 @@ - Fix `mergeSort` when the runtime iterable generic is a subtype of the static generic. - `CanonicalizedMap`: added constructor `fromEntries`. -- Require Dart `^3.1.0` - Mark "mixin" classes as `mixin`. - Deprecate `transitiveClosure`. Consider using `package:graphs`. +- Deprecate `whereNotNull()` from `IterableNullableExtension`. Use `nonNulls` + instead - this is an equivalent extension available in Dart core since + version 3.0. +- Require Dart `^3.1.0` ## 1.18.0 diff --git a/pkgs/collection/lib/src/iterable_extensions.dart b/pkgs/collection/lib/src/iterable_extensions.dart index 1bf4b3ed..0d52fbb2 100644 --- a/pkgs/collection/lib/src/iterable_extensions.dart +++ b/pkgs/collection/lib/src/iterable_extensions.dart @@ -611,6 +611,7 @@ extension IterableNullableExtension on Iterable { /// of this iterable, in their original iteration order. /// /// For an `Iterable`, this method is equivalent to `.whereType()`. + @Deprecated('Use .nonNulls instead.') Iterable whereNotNull() sync* { for (var element in this) { if (element != null) yield element; diff --git a/pkgs/collection/test/extensions_test.dart b/pkgs/collection/test/extensions_test.dart index 3b1401a5..6fa6e4ad 100644 --- a/pkgs/collection/test/extensions_test.dart +++ b/pkgs/collection/test/extensions_test.dart @@ -869,17 +869,47 @@ void main() { group('of nullable', () { group('.whereNotNull', () { test('empty', () { - expect(iterable([]).whereNotNull(), isEmpty); + expect( + iterable([]) + .whereNotNull(), // ignore: deprecated_member_use_from_same_package + isEmpty); }); test('single', () { - expect(iterable([null]).whereNotNull(), isEmpty); - expect(iterable([1]).whereNotNull(), [1]); + expect( + iterable([ + null + ]).whereNotNull(), // ignore: deprecated_member_use_from_same_package + isEmpty); + expect( + iterable([ + 1 + ]).whereNotNull(), // ignore: deprecated_member_use_from_same_package + [1]); }); test('multiple', () { - expect(iterable([1, 3, 5]).whereNotNull(), [1, 3, 5]); - expect(iterable([null, null, null]).whereNotNull(), isEmpty); expect( - iterable([1, null, 3, null, 5]).whereNotNull(), [1, 3, 5]); + iterable([ + 1, + 3, + 5 + ]).whereNotNull(), // ignore: deprecated_member_use_from_same_package + [1, 3, 5]); + expect( + iterable([ + null, + null, + null + ]).whereNotNull(), // ignore: deprecated_member_use_from_same_package + isEmpty); + expect( + iterable([ + 1, + null, + 3, + null, + 5 + ]).whereNotNull(), // ignore: deprecated_member_use_from_same_package + [1, 3, 5]); }); }); }); From 837a37abd8fdd30153739667d8572056b188867e Mon Sep 17 00:00:00 2001 From: Nate Bosch Date: Mon, 10 Jun 2024 14:14:08 -0700 Subject: [PATCH 226/235] Add flattenedToList and flattenedToSet (dart-lang/collection#328) For iterables which are known to be exhausted after flattening performance is better than the `sync*` implementation using a collection literal. Add `flattenedToList` as a performance improvement over `flattened.` Add `flattenedToSet` as new behavior for flattening to unique elements. Originally implemented in https://github.com/dart-lang/sdk/commit/8d3b6ce54ccb09dd970cd45fc3cded4a35beac31 --- pkgs/collection/CHANGELOG.md | 3 + .../lib/src/iterable_extensions.dart | 20 +++++++ pkgs/collection/test/extensions_test.dart | 57 +++++++++++++++++++ 3 files changed, 80 insertions(+) diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index f93bdbcf..d4b8cf71 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -6,6 +6,9 @@ generic. - `CanonicalizedMap`: added constructor `fromEntries`. - Mark "mixin" classes as `mixin`. +- `extension IterableIterableExtension on Iterable>` + - Add `flattenedToList` as a performance improvement over `flattened.` + - Add `flattenedToSet` as new behavior for flattening to unique elements. - Deprecate `transitiveClosure`. Consider using `package:graphs`. - Deprecate `whereNotNull()` from `IterableNullableExtension`. Use `nonNulls` instead - this is an equivalent extension available in Dart core since diff --git a/pkgs/collection/lib/src/iterable_extensions.dart b/pkgs/collection/lib/src/iterable_extensions.dart index 0d52fbb2..e2050062 100644 --- a/pkgs/collection/lib/src/iterable_extensions.dart +++ b/pkgs/collection/lib/src/iterable_extensions.dart @@ -892,6 +892,26 @@ extension IterableIterableExtension on Iterable> { yield* elements; } } + + /// The sequential elements of each iterable in this iterable. + /// + /// Iterates the elements of this iterable. + /// For each one, which is itself an iterable, + /// all the elements of that are added + /// to the returned list, before moving on to the next element. + List get flattenedToList => [ + for (final elements in this) ...elements, + ]; + + /// The unique sequential elements of each iterable in this iterable. + /// + /// Iterates the elements of this iterable. + /// For each one, which is itself an iterable, + /// all the elements of that are added + /// to the returned set, before moving on to the next element. + Set get flattenedToSet => { + for (final elements in this) ...elements, + }; } /// Extensions that apply to iterables of [Comparable] elements. diff --git a/pkgs/collection/test/extensions_test.dart b/pkgs/collection/test/extensions_test.dart index 6fa6e4ad..9940e1d4 100644 --- a/pkgs/collection/test/extensions_test.dart +++ b/pkgs/collection/test/extensions_test.dart @@ -1064,6 +1064,63 @@ void main() { [1, 2, 3, 4]); }); }); + group('.flattenedToList', () { + var empty = iterable([]); + test('empty', () { + expect(iterable(>[]).flattenedToList, []); + }); + test('multiple empty', () { + expect(iterable([empty, empty, empty]).flattenedToList, []); + }); + test('single value', () { + expect( + iterable([ + iterable([1]) + ]).flattenedToList, + [1]); + }); + test('multiple', () { + expect( + iterable([ + iterable([1, 2]), + empty, + iterable([3, 4]) + ]).flattenedToList, + [1, 2, 3, 4]); + }); + }); + group('.flattenedToSet', () { + var empty = iterable([]); + test('empty', () { + expect(iterable(>[]).flattenedToSet, {}); + }); + test('multiple empty', () { + expect(iterable([empty, empty, empty]).flattenedToSet, {}); + }); + test('single value', () { + expect( + iterable([ + iterable([1]) + ]).flattenedToSet, + {1}); + }); + test('multiple', () { + expect( + iterable([ + iterable([1, 2]), + empty, + iterable([3, 4]) + ]).flattenedToSet, + {1, 2, 3, 4}); + expect( + iterable([ + iterable([1, 2, 3]), + empty, + iterable([2, 3, 4]) + ]).flattenedToSet, + {1, 2, 3, 4}); + }); + }); }); group('of comparable', () { group('.min', () { From 77f438bb5e2e787b1c4745bb512f6dc821f39aab Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Tue, 11 Jun 2024 08:15:01 -0700 Subject: [PATCH 227/235] blast_repo fixes (dart-lang/collection#348) auto-publish, github-actions, no-response --- .../.github/workflows/no-response.yml | 37 +++++++++++++++++++ .../collection/.github/workflows/publish.yaml | 5 ++- 2 files changed, 41 insertions(+), 1 deletion(-) create mode 100644 pkgs/collection/.github/workflows/no-response.yml diff --git a/pkgs/collection/.github/workflows/no-response.yml b/pkgs/collection/.github/workflows/no-response.yml new file mode 100644 index 00000000..ab1ac498 --- /dev/null +++ b/pkgs/collection/.github/workflows/no-response.yml @@ -0,0 +1,37 @@ +# A workflow to close issues where the author hasn't responded to a request for +# more information; see https://github.com/actions/stale. + +name: No Response + +# Run as a daily cron. +on: + schedule: + # Every day at 8am + - cron: '0 8 * * *' + +# All permissions not specified are set to 'none'. +permissions: + issues: write + pull-requests: write + +jobs: + no-response: + runs-on: ubuntu-latest + if: ${{ github.repository_owner == 'dart-lang' }} + steps: + - uses: actions/stale@28ca1036281a5e5922ead5184a1bbf96e5fc984e + with: + # Don't automatically mark inactive issues+PRs as stale. + days-before-stale: -1 + # Close needs-info issues and PRs after 14 days of inactivity. + days-before-close: 14 + stale-issue-label: "needs-info" + close-issue-message: > + Without additional information we're not able to resolve this issue. + Feel free to add more info or respond to any questions above and we + can reopen the case. Thanks for your contribution! + stale-pr-label: "needs-info" + close-pr-message: > + Without additional information we're not able to resolve this PR. + Feel free to add more info or respond to any questions above. + Thanks for your contribution! diff --git a/pkgs/collection/.github/workflows/publish.yaml b/pkgs/collection/.github/workflows/publish.yaml index fcb7ccb8..27157a04 100644 --- a/pkgs/collection/.github/workflows/publish.yaml +++ b/pkgs/collection/.github/workflows/publish.yaml @@ -6,9 +6,12 @@ on: pull_request: branches: [ master ] push: - tags: [ 'v[0-9]+.[0-9]+.[0-9]+*' ] + tags: [ 'v[0-9]+.[0-9]+.[0-9]+' ] jobs: publish: if: ${{ github.repository_owner == 'dart-lang' }} uses: dart-lang/ecosystem/.github/workflows/publish.yaml@main + permissions: + id-token: write # Required for authentication using OIDC + pull-requests: write # Required for writing the pull request note From d92e6a51e323c048ae90c2e786ee03c9a39984ec Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Thu, 13 Jun 2024 14:42:59 -0700 Subject: [PATCH 228/235] Require Dart 3.4, test wasm on 3.4, prepare release (dart-lang/collection#349) --- pkgs/collection/.github/workflows/ci.yml | 4 ++-- pkgs/collection/CHANGELOG.md | 4 ++-- pkgs/collection/lib/src/canonicalized_map.dart | 2 +- pkgs/collection/pubspec.yaml | 4 ++-- 4 files changed, 7 insertions(+), 7 deletions(-) diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index e21d2e94..1db83b06 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -46,7 +46,7 @@ jobs: matrix: # Add macos-latest and/or windows-latest if relevant for this package. os: [ubuntu-latest] - sdk: [3.1.0, dev] + sdk: [3.4, dev] steps: - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 - uses: dart-lang/setup-dart@f0ead981b4d9a35b37f30d36160575d60931ec30 @@ -63,4 +63,4 @@ jobs: if: always() && steps.install.outcome == 'success' - name: Run Chrome tests - wasm run: dart test --platform chrome --compiler dart2wasm - if: always() && steps.install.outcome == 'success' && matrix.sdk == 'dev' + if: always() && steps.install.outcome == 'success' diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index d4b8cf71..de5e1720 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,4 +1,4 @@ -## 1.19.0-wip +## 1.19.0 - Adds `shuffled` to `IterableExtension`. - Shuffle `IterableExtension.sample` results. @@ -13,7 +13,7 @@ - Deprecate `whereNotNull()` from `IterableNullableExtension`. Use `nonNulls` instead - this is an equivalent extension available in Dart core since version 3.0. -- Require Dart `^3.1.0` +- Require Dart `^3.4.0` ## 1.18.0 diff --git a/pkgs/collection/lib/src/canonicalized_map.dart b/pkgs/collection/lib/src/canonicalized_map.dart index 41038431..3dc6e37c 100644 --- a/pkgs/collection/lib/src/canonicalized_map.dart +++ b/pkgs/collection/lib/src/canonicalized_map.dart @@ -187,7 +187,7 @@ class CanonicalizedMap implements Map { String toString() => MapBase.mapToString(this); bool _isValidKey(Object? key) => - (key is K) && (_isValidKeyFn == null || _isValidKeyFn!(key)); + (key is K) && (_isValidKeyFn == null || _isValidKeyFn(key)); /// Creates a `Map` (with the original key values). /// See [toMapOfCanonicalKeys]. diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 7a92e220..faca7344 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.19.0-wip +version: 1.19.0 description: >- Collections and utilities functions and classes related to collections. repository: https://github.com/dart-lang/collection @@ -9,7 +9,7 @@ topics: - collections environment: - sdk: ^3.1.0 + sdk: ^3.4.0 dev_dependencies: dart_flutter_team_lints: ^3.0.0 From 5325d66694d0d7a1fb3d7b2f02aa7d5c79b4ec66 Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Mon, 1 Jul 2024 23:27:07 +0000 Subject: [PATCH 229/235] Bump the github-actions group with 2 updates (dart-lang/collection#354) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Bumps the github-actions group with 2 updates: [actions/checkout](https://github.com/actions/checkout) and [dart-lang/setup-dart](https://github.com/dart-lang/setup-dart). Updates `actions/checkout` from 4.1.6 to 4.1.7
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v4.1.7

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dart-lang/collection#118: dart-lang/setup-dartdart-lang/collection#118

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v1.6.5

dart-lang/collection#118: dart-lang/setup-dartdart-lang/collection#118

v1.6.4

  • Rebuild JS code.

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v1.6.2

v1.6.1

  • Updated the google storage url for main channel releases.

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  • Enable provisioning of the latest Dart SDK patch release by specifying just the major and minor version (e.g. 3.2).

v1.5.1

  • No longer test the setup-dart action on pre-2.12 SDKs.
  • Upgrade JS interop code to use extension types (the new name for inline classes).
  • The upcoming rename of the be channel to main is now supported with forward compatibility that switches when the rename happens.

v1.5.0

  • Re-wrote the implementation of the action into Dart.
  • Auto-detect the platform architecture (x64, ia32, arm, arm64).
  • Improved the caching and download resilience of the sdk.
  • Added a new action output: dart-version - the installed version of the sdk.

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--- pkgs/collection/.github/workflows/ci.yml | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index 1db83b06..44c6fd03 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -21,8 +21,8 @@ jobs: matrix: sdk: [dev] steps: - - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 - - uses: dart-lang/setup-dart@f0ead981b4d9a35b37f30d36160575d60931ec30 + - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 + - uses: dart-lang/setup-dart@0a8a0fc875eb934c15d08629302413c671d3f672 with: sdk: ${{ matrix.sdk }} - id: install @@ -48,8 +48,8 @@ jobs: os: [ubuntu-latest] sdk: [3.4, dev] steps: - - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 - - uses: dart-lang/setup-dart@f0ead981b4d9a35b37f30d36160575d60931ec30 + - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 + - uses: dart-lang/setup-dart@0a8a0fc875eb934c15d08629302413c671d3f672 with: sdk: ${{ matrix.sdk }} - id: install From cdf478274aa5f7a0560f8e621c8d7bf6963f2dcf Mon Sep 17 00:00:00 2001 From: Kevin Moore Date: Mon, 26 Aug 2024 08:57:50 -0700 Subject: [PATCH 230/235] Fix angle brackets in doc comments (dart-lang/collection#358) --- pkgs/collection/lib/src/functions.dart | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/pkgs/collection/lib/src/functions.dart b/pkgs/collection/lib/src/functions.dart index fb67c9f4..db865741 100644 --- a/pkgs/collection/lib/src/functions.dart +++ b/pkgs/collection/lib/src/functions.dart @@ -65,8 +65,8 @@ Map> groupBy(Iterable values, T Function(S) key) { /// value. /// /// The values returned by [orderBy] are compared using the [compare] function. -/// If [compare] is omitted, values must implement [Comparable] and they are -/// compared using their [Comparable.compareTo]. +/// If [compare] is omitted, values must implement [Comparable]`` and they +/// are compared using their [Comparable.compareTo]. /// /// Returns `null` if [values] is empty. S? minBy(Iterable values, T Function(S) orderBy, @@ -89,8 +89,8 @@ S? minBy(Iterable values, T Function(S) orderBy, /// value. /// /// The values returned by [orderBy] are compared using the [compare] function. -/// If [compare] is omitted, values must implement [Comparable] and they are -/// compared using their [Comparable.compareTo]. +/// If [compare] is omitted, values must implement [Comparable]`` and they +/// are compared using their [Comparable.compareTo]. /// /// Returns `null` if [values] is empty. S? maxBy(Iterable values, T Function(S) orderBy, From e961869b6ba852fbcdf31e0b5d38cda3402c10d3 Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Fri, 4 Oct 2024 22:21:53 +0000 Subject: [PATCH 231/235] Bump actions/checkout from 4.1.7 to 4.2.0 in the github-actions group (dart-lang/collection#361) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Bumps the github-actions group with 1 update: [actions/checkout](https://github.com/actions/checkout). Updates `actions/checkout` from 4.1.7 to 4.2.0
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--- pkgs/collection/.github/workflows/ci.yml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkgs/collection/.github/workflows/ci.yml b/pkgs/collection/.github/workflows/ci.yml index 44c6fd03..41368725 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/pkgs/collection/.github/workflows/ci.yml @@ -21,7 +21,7 @@ jobs: matrix: sdk: [dev] steps: - - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 + - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 - uses: dart-lang/setup-dart@0a8a0fc875eb934c15d08629302413c671d3f672 with: sdk: ${{ matrix.sdk }} @@ -48,7 +48,7 @@ jobs: os: [ubuntu-latest] sdk: [3.4, dev] steps: - - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 + - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 - uses: dart-lang/setup-dart@0a8a0fc875eb934c15d08629302413c671d3f672 with: sdk: ${{ matrix.sdk }} From 537536a4132640d19384aceff040858441dc5557 Mon Sep 17 00:00:00 2001 From: Moritz Date: Fri, 18 Oct 2024 14:18:09 +0200 Subject: [PATCH 232/235] Add issue template and other fixes --- .github/ISSUE_TEMPLATE/collection.md | 5 ++++ pkgs/collection/CONTRIBUTING.md | 42 ---------------------------- pkgs/collection/pubspec.yaml | 2 +- 3 files changed, 6 insertions(+), 43 deletions(-) create mode 100644 .github/ISSUE_TEMPLATE/collection.md delete mode 100644 pkgs/collection/CONTRIBUTING.md diff --git a/.github/ISSUE_TEMPLATE/collection.md b/.github/ISSUE_TEMPLATE/collection.md new file mode 100644 index 00000000..7880c7fd --- /dev/null +++ b/.github/ISSUE_TEMPLATE/collection.md @@ -0,0 +1,5 @@ +--- +name: "package:collection" +about: "Create a bug or file a feature request against package:collection." +labels: "package:collection" +--- \ No newline at end of file diff --git a/pkgs/collection/CONTRIBUTING.md b/pkgs/collection/CONTRIBUTING.md deleted file mode 100644 index bdf4dabd..00000000 --- a/pkgs/collection/CONTRIBUTING.md +++ /dev/null @@ -1,42 +0,0 @@ -Want to contribute? Great! First, read this page (including the small print at -the end). - -### Before you contribute -Before we can use your code, you must sign the -[Google Individual Contributor License Agreement](https://cla.developers.google.com/about/google-individual) -(CLA), which you can do online. The CLA is necessary mainly because you own the -copyright to your changes, even after your contribution becomes part of our -codebase, so we need your permission to use and distribute your code. We also -need to be sure of various other things—for instance that you'll tell us if you -know that your code infringes on other people's patents. You don't have to sign -the CLA until after you've submitted your code for review and a member has -approved it, but you must do it before we can put your code into our codebase. - -Before you start working on a larger contribution, you should get in touch with -us first through the issue tracker with your idea so that we can help out and -possibly guide you. Coordinating up front makes it much easier to avoid -frustration later on. - -### Code reviews -All submissions, including submissions by project members, require review. - -### Presubmit testing -* All code must pass analysis by `dart analyze --fatal-infos`. -* All code must be formatted by `dart format`. - * _NOTE_: We currently require formatting by the `dev` channel SDK. -* All code must pass unit tests for the VM, Dart2JS, and DartDevC (`pub run build_runner test`). - * _NOTE_: We currently use `build_runner` for compilation with DartDevC. It's - possible to run only Dart2JS and the VM without it using `pub run test` - directly. - -### File headers -All files in the project must start with the following header. - - // Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file - // for details. All rights reserved. Use of this source code is governed by a - // BSD-style license that can be found in the LICENSE file. - -### The small print -Contributions made by corporations are covered by a different agreement than the -one above, the -[Software Grant and Corporate Contributor License Agreement](https://developers.google.com/open-source/cla/corporate). diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index faca7344..2e359d9f 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -2,7 +2,7 @@ name: collection version: 1.19.0 description: >- Collections and utilities functions and classes related to collections. -repository: https://github.com/dart-lang/collection +repository: https://github.com/dart-lang/core/tree/main/pkgs/collection topics: - data-structures From 7d61126cbafdd66615aa12d5da81b7611c6614a6 Mon Sep 17 00:00:00 2001 From: Moritz Date: Fri, 18 Oct 2024 14:23:12 +0200 Subject: [PATCH 233/235] Moving fixes --- .github/labeler.yml | 4 ++ .../workflows/collection.yaml | 17 +++++++-- README.md | 1 + pkgs/collection/.github/dependabot.yaml | 14 ------- .../.github/workflows/no-response.yml | 37 ------------------- .../collection/.github/workflows/publish.yaml | 17 --------- pkgs/collection/CHANGELOG.md | 4 ++ pkgs/collection/README.md | 2 +- pkgs/collection/pubspec.yaml | 2 +- 9 files changed, 25 insertions(+), 73 deletions(-) rename pkgs/collection/.github/workflows/ci.yml => .github/workflows/collection.yaml (84%) delete mode 100644 pkgs/collection/.github/dependabot.yaml delete mode 100644 pkgs/collection/.github/workflows/no-response.yml delete mode 100644 pkgs/collection/.github/workflows/publish.yaml diff --git a/.github/labeler.yml b/.github/labeler.yml index 9428f8f3..8dfe0c04 100644 --- a/.github/labeler.yml +++ b/.github/labeler.yml @@ -12,6 +12,10 @@ - changed-files: - any-glob-to-any-file: 'pkgs/characters/**' +"package:collection": + - changed-files: + - any-glob-to-any-file: 'pkgs/collection/**' + "package:convert": - changed-files: - any-glob-to-any-file: 'pkgs/convert/**' diff --git a/pkgs/collection/.github/workflows/ci.yml b/.github/workflows/collection.yaml similarity index 84% rename from pkgs/collection/.github/workflows/ci.yml rename to .github/workflows/collection.yaml index 41368725..a42f72d5 100644 --- a/pkgs/collection/.github/workflows/ci.yml +++ b/.github/workflows/collection.yaml @@ -1,16 +1,27 @@ -name: Dart CI +name: package:collection on: + # Run CI on pushes to the main branch, and on PRs against main. push: - branches: [ master ] + branches: [ main ] + paths: + - '.github/workflows/collection.yaml' + - 'pkgs/collection/**' pull_request: - branches: [ master ] + branches: [ main ] + paths: + - '.github/workflows/collection.yaml' + - 'pkgs/collection/**' schedule: - cron: "0 0 * * 0" env: PUB_ENVIRONMENT: bot.github +defaults: + run: + working-directory: pkgs/collection/ + jobs: # Check code formatting and static analysis on a single OS (linux) # against Dart dev. diff --git a/README.md b/README.md index 634751fb..7542574f 100644 --- a/README.md +++ b/README.md @@ -11,6 +11,7 @@ This repository is home to various Dart packages under the [dart.dev](https://pu | [args](pkgs/args/) | Library for defining parsers for parsing raw command-line arguments into a set of options and values. | [![pub package](https://img.shields.io/pub/v/args.svg)](https://pub.dev/packages/args) | | [async](pkgs/async/) | Utility functions and classes related to the 'dart:async' library.| [![pub package](https://img.shields.io/pub/v/async.svg)](https://pub.dev/packages/async) | | [characters](pkgs/characters/) | String replacement with operations that are Unicode/grapheme cluster aware. | [![pub package](https://img.shields.io/pub/v/characters.svg)](https://pub.dev/packages/characters) | +| [collection](pkgs/collection/) | Collections and utilities functions and classes related to collections. | [![pub package](https://img.shields.io/pub/v/collection.svg)](https://pub.dev/packages/collection) | | [convert](pkgs/convert/) | Utilities for converting between data representations. | [![pub package](https://img.shields.io/pub/v/convert.svg)](https://pub.dev/packages/convert) | | [crypto](pkgs/crypto/) | Implementations of SHA, MD5, and HMAC cryptographic functions. | [![pub package](https://img.shields.io/pub/v/crypto.svg)](https://pub.dev/packages/crypto) | | [fixnum](pkgs/fixnum/) | Library for 32- and 64-bit signed fixed-width integers. | [![pub package](https://img.shields.io/pub/v/fixnum.svg)](https://pub.dev/packages/fixnum) | diff --git a/pkgs/collection/.github/dependabot.yaml b/pkgs/collection/.github/dependabot.yaml deleted file mode 100644 index bf6b38a4..00000000 --- a/pkgs/collection/.github/dependabot.yaml +++ /dev/null @@ -1,14 +0,0 @@ -# Dependabot configuration file. -version: 2 - -updates: - - package-ecosystem: github-actions - directory: / - schedule: - interval: monthly - labels: - - autosubmit - groups: - github-actions: - patterns: - - "*" diff --git a/pkgs/collection/.github/workflows/no-response.yml b/pkgs/collection/.github/workflows/no-response.yml deleted file mode 100644 index ab1ac498..00000000 --- a/pkgs/collection/.github/workflows/no-response.yml +++ /dev/null @@ -1,37 +0,0 @@ -# A workflow to close issues where the author hasn't responded to a request for -# more information; see https://github.com/actions/stale. - -name: No Response - -# Run as a daily cron. -on: - schedule: - # Every day at 8am - - cron: '0 8 * * *' - -# All permissions not specified are set to 'none'. -permissions: - issues: write - pull-requests: write - -jobs: - no-response: - runs-on: ubuntu-latest - if: ${{ github.repository_owner == 'dart-lang' }} - steps: - - uses: actions/stale@28ca1036281a5e5922ead5184a1bbf96e5fc984e - with: - # Don't automatically mark inactive issues+PRs as stale. - days-before-stale: -1 - # Close needs-info issues and PRs after 14 days of inactivity. - days-before-close: 14 - stale-issue-label: "needs-info" - close-issue-message: > - Without additional information we're not able to resolve this issue. - Feel free to add more info or respond to any questions above and we - can reopen the case. Thanks for your contribution! - stale-pr-label: "needs-info" - close-pr-message: > - Without additional information we're not able to resolve this PR. - Feel free to add more info or respond to any questions above. - Thanks for your contribution! diff --git a/pkgs/collection/.github/workflows/publish.yaml b/pkgs/collection/.github/workflows/publish.yaml deleted file mode 100644 index 27157a04..00000000 --- a/pkgs/collection/.github/workflows/publish.yaml +++ /dev/null @@ -1,17 +0,0 @@ -# A CI configuration to auto-publish pub packages. - -name: Publish - -on: - pull_request: - branches: [ master ] - push: - tags: [ 'v[0-9]+.[0-9]+.[0-9]+' ] - -jobs: - publish: - if: ${{ github.repository_owner == 'dart-lang' }} - uses: dart-lang/ecosystem/.github/workflows/publish.yaml@main - permissions: - id-token: write # Required for authentication using OIDC - pull-requests: write # Required for writing the pull request note diff --git a/pkgs/collection/CHANGELOG.md b/pkgs/collection/CHANGELOG.md index de5e1720..021dd937 100644 --- a/pkgs/collection/CHANGELOG.md +++ b/pkgs/collection/CHANGELOG.md @@ -1,3 +1,7 @@ +## 1.19.1 + +- Move to `dart-lang/core` monorepo. + ## 1.19.0 - Adds `shuffled` to `IterableExtension`. diff --git a/pkgs/collection/README.md b/pkgs/collection/README.md index a6a064d4..1c604d39 100644 --- a/pkgs/collection/README.md +++ b/pkgs/collection/README.md @@ -1,4 +1,4 @@ -[![Dart CI](https://github.com/dart-lang/collection/actions/workflows/ci.yml/badge.svg)](https://github.com/dart-lang/collection/actions/workflows/ci.yml) +[![Dart CI](https://github.com/dart-lang/core/actions/workflows/collection.yaml/badge.svg)](https://github.com/dart-lang/core/actions/workflows/collection.yaml) [![pub package](https://img.shields.io/pub/v/collection.svg)](https://pub.dev/packages/collection) [![package publisher](https://img.shields.io/pub/publisher/collection.svg)](https://pub.dev/packages/collection/publisher) diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index 2e359d9f..fb220cc3 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -1,5 +1,5 @@ name: collection -version: 1.19.0 +version: 1.19.1 description: >- Collections and utilities functions and classes related to collections. repository: https://github.com/dart-lang/core/tree/main/pkgs/collection From b67ebd8d4726c145a820da2db1355e1c1eafbd06 Mon Sep 17 00:00:00 2001 From: Moritz Date: Fri, 18 Oct 2024 14:23:28 +0200 Subject: [PATCH 234/235] Remove section in readme --- pkgs/collection/README.md | 5 ----- 1 file changed, 5 deletions(-) diff --git a/pkgs/collection/README.md b/pkgs/collection/README.md index 1c604d39..63f705c7 100644 --- a/pkgs/collection/README.md +++ b/pkgs/collection/README.md @@ -57,8 +57,3 @@ functions on an existing object. Please file feature requests and bugs at the [issue tracker][tracker]. [tracker]: https://github.com/dart-lang/collection/issues - -## Publishing automation - -For information about our publishing automation and release process, see -https://github.com/dart-lang/ecosystem/wiki/Publishing-automation. From 9c59e2b95bceaa31ae96322a045abf8a888983fc Mon Sep 17 00:00:00 2001 From: Devon Carew Date: Fri, 18 Oct 2024 13:38:15 -0700 Subject: [PATCH 235/235] Update pubspec.yaml --- pkgs/collection/pubspec.yaml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/pkgs/collection/pubspec.yaml b/pkgs/collection/pubspec.yaml index fb220cc3..54477398 100644 --- a/pkgs/collection/pubspec.yaml +++ b/pkgs/collection/pubspec.yaml @@ -5,8 +5,8 @@ description: >- repository: https://github.com/dart-lang/core/tree/main/pkgs/collection topics: - - data-structures - collections + - data-structures environment: sdk: ^3.4.0