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always use a Uri in part of directives (#665)
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jakemac53 authored May 9, 2023
1 parent de29956 commit 3d1f86b
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Showing 6 changed files with 21 additions and 35 deletions.
5 changes: 5 additions & 0 deletions source_gen/CHANGELOG.md
Original file line number Diff line number Diff line change
@@ -1,3 +1,8 @@
## 1.3.1

* Always use a Uri in `part of` directives (previously a name would be used if
the library had a non-empty one).

## 1.3.0

* Add support for `build_extensions` configuration of builders producing
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4 changes: 2 additions & 2 deletions source_gen/lib/builder.dart
Original file line number Diff line number Diff line change
Expand Up @@ -120,7 +120,7 @@ class CombiningBuilder implements Builder {

final inputLibrary = await buildStep.inputLibrary;
final outputId = buildStep.allowedOutputs.single;
final partOf = nameOfPartial(inputLibrary, buildStep.inputId, outputId);
final partOfUri = uriOfPartial(inputLibrary, buildStep.inputId, outputId);

// Ensure that the input has a correct `part` statement.
final libraryUnit =
Expand All @@ -143,7 +143,7 @@ class CombiningBuilder implements Builder {
final output = '''
$defaultFileHeader
${languageOverrideForLibrary(inputLibrary)}$ignoreForFile$preamble
part of $partOf;
part of '$partOfUri';
$assets
''';
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4 changes: 2 additions & 2 deletions source_gen/lib/src/builder.dart
Original file line number Diff line number Diff line change
Expand Up @@ -124,13 +124,13 @@ class _Builder extends Builder {

if (!_isLibraryBuilder) {
final asset = buildStep.inputId;
final name = nameOfPartial(library, asset, outputId);
final partOfUri = uriOfPartial(library, asset, outputId);
contentBuffer.writeln();

if (this is PartBuilder) {
contentBuffer
..write(languageOverrideForLibrary(library))
..writeln('part of $name;');
..writeln('part of \'$partOfUri\';');
final part = computePartUrl(buildStep.inputId, outputId);

final libraryUnit =
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25 changes: 3 additions & 22 deletions source_gen/lib/src/utils.dart
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Expand Up @@ -43,29 +43,10 @@ bool hasExpectedPartDirective(CompilationUnit unit, String part) =>
.whereType<PartDirective>()
.any((e) => e.uri.stringValue == part);

/// Returns a name suitable for `part of "..."` when pointing to [element].
String nameOfPartial(LibraryElement element, AssetId source, AssetId output) {
if (element.name.isNotEmpty) {
return element.name;
}

/// Returns a uri suitable for `part of "..."` when pointing to [element].
String uriOfPartial(LibraryElement element, AssetId source, AssetId output) {
assert(source.package == output.package);
final relativeSourceUri =
p.url.relative(source.path, from: p.url.dirname(output.path));
return '\'$relativeSourceUri\'';
}

/// Returns a suggested library identifier based on [source] path and package.
String suggestLibraryName(AssetId source) {
// lib/test.dart --> [lib/test.dart]
final parts = source.path.split('/');
// [lib/test.dart] --> [lib/test]
parts[parts.length - 1] = parts.last.split('.').first;
// [lib/test] --> [test]
if (parts.first == 'lib') {
parts.removeAt(0);
}
return '${source.package}.${parts.join('.')}';
return p.url.relative(source.path, from: p.url.dirname(output.path));
}

/// Returns what 'part "..."' URL is needed to import [output] from [input].
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2 changes: 1 addition & 1 deletion source_gen/pubspec.yaml
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@@ -1,5 +1,5 @@
name: source_gen
version: 1.3.0
version: 1.3.1
description: >-
Source code generation builders and utilities for the Dart build system
repository: https://github.com/dart-lang/source_gen/tree/master/source_gen
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16 changes: 8 additions & 8 deletions source_gen/test/builder_test.dart
Original file line number Diff line number Diff line change
Expand Up @@ -519,7 +519,7 @@ part "a.g.dart";
// GENERATED CODE - DO NOT MODIFY BY HAND
// @dart=2.12
part of a;
part of 'a.dart';
some generated content
''',
Expand Down Expand Up @@ -668,7 +668,7 @@ some generated content
r'''
// ignore_for_file: lines_longer_than_80_chars, prefer_expression_function_bodies
part of a;
part of 'a.dart';
bar generated content
Expand Down Expand Up @@ -703,7 +703,7 @@ foo generated content
// bar
part of a;
part of 'a.dart';
bar generated content
Expand Down Expand Up @@ -970,7 +970,7 @@ class MyGoodError { }
''';

const _testLibPartContent = r'''
part of test_lib;
part of 'test_lib.dart';
final int bar = 42;
class Customer { }
''';
Expand All @@ -987,7 +987,7 @@ final int foo = 42

const _testGenPartContent = r'''// GENERATED CODE - DO NOT MODIFY BY HAND
part of test_lib;
part of 'test_lib.dart';
// **************************************************************************
// CommentGenerator
Expand All @@ -1000,7 +1000,7 @@ part of test_lib;
const _testGenPartContentForLibrary =
r'''// GENERATED CODE - DO NOT MODIFY BY HAND
part of test_lib;
part of 'test_lib.dart';
// **************************************************************************
// CommentGenerator
Expand All @@ -1022,7 +1022,7 @@ const _testGenStandaloneContent = r'''// GENERATED CODE - DO NOT MODIFY BY HAND
const _testGenPartContentForClassesAndLibrary =
r'''// GENERATED CODE - DO NOT MODIFY BY HAND
part of test_lib;
part of 'test_lib.dart';
// **************************************************************************
// CommentGenerator
Expand All @@ -1047,7 +1047,7 @@ part of 'test_lib.dart';

const _whitespaceTrimmed = r'''// GENERATED CODE - DO NOT MODIFY BY HAND
part of test_lib;
part of 'test_lib.dart';
// **************************************************************************
// Generator: Literal
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