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Defining factory methods with interface in a library #514

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DartBot opened this issue Nov 18, 2011 · 3 comments
Closed

Defining factory methods with interface in a library #514

DartBot opened this issue Nov 18, 2011 · 3 comments
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area-vm Use area-vm for VM related issues, including code coverage, and the AOT and JIT backends.

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@DartBot
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DartBot commented Nov 18, 2011

This issue was originally filed by [email protected]


I am trying to plug some holes in the dartc syntax analysis and have
come across something that doesn't seem to work on any of our
implementations: using a factory contructor for an interface defined
in a library. I'm looking for some validation that the test I've come
up with is valid.

Here's my original test:

interface A factory C {
  A();
  int methodA();
}

class B implements A {
  int methodA() { return 1; }
  int methodB() { return 2; }
}

class C { // References an interface in another library
  factory A () { return new B(); }
}

main() {
  var val = new A();
  Expect.equals(1, val.methodA());
  Expect.equals(2, val.methodB());
}

Then I split it into two files:

library("lib");

import("DefaultFactoryLibraryTest.dart", prefix:"test");

// References a factory class in another library
interface A factory test.C {
 A();
 int methodA();
}

===

library("test");

import("DefaultFactoryLibrary.dart", prefix:"lib");

class B implements lib.A {
 int methodA() { return 1; }
 int methodB() { return 2; }
}

class C {
 // References an interface in another library
 factory lib.A () { return new B(); }
}

main() {
 var val = new lib.A();
 Expect.equals(true, (val is B));
 Expect.equals(1, val.methodA());
 Expect.equals(2, val.methodB());
}

The test now fails in various ways on vm, frog, and dartc, but I think
it should work.

VM:
~/dart$ out/Debug_ia32/dart tests/language/src/DefaultFactoryLibraryTest.dart
'/home/zundel/dart/tests/language/src/DefaultFactoryLibraryTest.dart':
line 17 pos 11: cannot resolve class name 'lib' from 'C'.

 factory lib.A () { return new B(); }

Dartc:

~/dart$ dartc_test tests/language/src/DefaultFactoryLibraryTest.dart
tests/language/src/DefaultFactoryLibraryTest.dart/DefaultFactoryLibraryTest.dart:17:
type "lib" expected, but "LIBRARY" found
   16: // References an interface in another library
   17: factory lib.A () { return new B(); }
tests/language/src/DefaultFactoryLibraryTest.dart/DefaultFactoryLibraryTest.dart:17:
no such type "lib" in constructor
   16: // References an interface in another library
   17: factory lib.A () { return new B(); }
Compilation failed with 1 problem.

Frog: fails the 'is' test

@crelier
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crelier commented Nov 18, 2011

I'll fix it in the VM.
But feel free to fix it in frog and/or dartc.


Set owner to @crelier.
Added Area-VM, Accepted labels.

@rakudrama
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I just hit the same problem.
I was hoping to split the dart:dom library into a public library and impl library with the factory provider class in the impl library.

@crelier
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crelier commented Dec 5, 2011

Fixed in r2085.


Added Fixed label.

@DartBot DartBot added Type-Defect area-vm Use area-vm for VM related issues, including code coverage, and the AOT and JIT backends. labels Dec 5, 2011
nex3 pushed a commit that referenced this issue Aug 31, 2016
Move to AsyncWorkerLoop since CommandRunner.run returns a future.
copybara-service bot pushed a commit that referenced this issue May 20, 2022
Changes:
```
> git log --format="%C(auto) %h %s" c1eb6cb..b149f80
 https://dart.googlesource.com/protobuf.git/+/b149f80 Remove the top level analysis_options.yaml file (#656)
 https://dart.googlesource.com/protobuf.git/+/8f6f307 Fix comment syntax
 https://dart.googlesource.com/protobuf.git/+/665f7b0 Remove trailing whitespace in protobuf/LICENSE
 https://dart.googlesource.com/protobuf.git/+/9ffbaf2 Fix default list type for frozen messages (#654)
 https://dart.googlesource.com/protobuf.git/+/a68bb5a Fix Fixed32 to be parsed as unsigned when parsing proto3 protos (#655)
 https://dart.googlesource.com/protobuf.git/+/6957c98 Convert the field started with underscore and digit to a legal name (#651)
 https://dart.googlesource.com/protobuf.git/+/71defca Account for double.infinity and double.nan in json serializers (#652)
 https://dart.googlesource.com/protobuf.git/+/5a48349 Allow `Timestamp.toDateTime()` to return a `DateTime` in local timezone (#653)
 https://dart.googlesource.com/protobuf.git/+/117e869 Make the toString of enums be the value if names are omitted (#649)
 https://dart.googlesource.com/protobuf.git/+/88c4016 Align the hashCode of a message with an empty unknown field-set with that of no unknown field set (#648)
 https://dart.googlesource.com/protobuf.git/+/eed09c4 Fix proto3 repeated field encoding without packed option (#635)
 https://dart.googlesource.com/protobuf.git/+/8f587b1 Simplify `_FieldSet` getters (#646)
 https://dart.googlesource.com/protobuf.git/+/494f189 Fix compile-protos.sh interpreter (#645)
 https://dart.googlesource.com/protobuf.git/+/5e1a422 Fix typo in protobuf-0.9.0+1 changelog
 https://dart.googlesource.com/protobuf.git/+/46df68a Add `UseResult` annotation to `rebuild` (#631)
 https://dart.googlesource.com/protobuf.git/+/ff5304f Migrate protoc_plugin to null safety (#642)
 https://dart.googlesource.com/protobuf.git/+/657197d Fix typo in GeneratedMessage.copyWith documentation (#641)
 https://dart.googlesource.com/protobuf.git/+/e30a522 Fix sharing coded buffer bytes when parsing `bytes` fields (#640)
 https://dart.googlesource.com/protobuf.git/+/810b166 Clear unknown field when setting an extension field with the same tag (#639)
 https://dart.googlesource.com/protobuf.git/+/d30623b Treat empty and uninitialized Maps the same in equality checks (#638)
 https://dart.googlesource.com/protobuf.git/+/4fe3ee4 Make `MapFieldInfo` key and value types non-nullable (#600)
 https://dart.googlesource.com/protobuf.git/+/c26ac34 Add grpc example to protoc_plugin README (#514)
 https://dart.googlesource.com/protobuf.git/+/c35d787 Revert changes to reserved names to maintain backwards compat (#636)
 https://dart.googlesource.com/protobuf.git/+/146b186 Remove unused `GeneratedMessage` constructors (#634)
 https://dart.googlesource.com/protobuf.git/+/1b12ac9 Remove a closure in `_FieldSet.hashCode` (#633)
 https://dart.googlesource.com/protobuf.git/+/5731242 Minor fix in query_bench set_nested_value benchmark: (#630)
 https://dart.googlesource.com/protobuf.git/+/767ce81 Remove fold() closures from `FieldSet._hashCode`. (#554)
 https://dart.googlesource.com/protobuf.git/+/99bc541 protoc_plugin README fixes and tweaks: (#617)
 https://dart.googlesource.com/protobuf.git/+/e282e17 protobuf benchs: invoke protoc once with all protos (#623)
 https://dart.googlesource.com/protobuf.git/+/bef672b protobuf benchs: fix old --trust-type-annotations flag (#622)
 https://dart.googlesource.com/protobuf.git/+/d072e5f dependabot: check for updates monthly (#620)
 https://dart.googlesource.com/protobuf.git/+/96bdf38 Fix TypeRegistry passing when unpacking nested Any messages from JSON (#568)
 https://dart.googlesource.com/protobuf.git/+/4ec722a Correctly combine hash codes for repeated enums. (#556)
 https://dart.googlesource.com/protobuf.git/+/b96dc21 Testing: don't return static methods in findMemberNames (#618)
 https://dart.googlesource.com/protobuf.git/+/09e8a8d Update protobuf/benchmarks README for #553
 https://dart.googlesource.com/protobuf.git/+/3ef4539 Add a benchmark for computing hashCodes. (#553)
 https://dart.googlesource.com/protobuf.git/+/d232e6e Tweak READMEs: (#610)
 https://dart.googlesource.com/protobuf.git/+/0f01fa9 Update protobuf pubspec.yaml (#616)
 https://dart.googlesource.com/protobuf.git/+/a10426b Update protoc_plugin pubspec.yaml (#615)
 https://dart.googlesource.com/protobuf.git/+/a0021c7 Make `protoName` unCamelCase lazy (#606)
 https://dart.googlesource.com/protobuf.git/+/ded1ac7 Document map key and value fields (#603)
 https://dart.googlesource.com/protobuf.git/+/8792f2a Remove redundant check in PbMap equality check (#604)
 https://dart.googlesource.com/protobuf.git/+/b7f9569 Tweak BuilderInfo and FieldInfo docs: (#597)
 https://dart.googlesource.com/protobuf.git/+/6f85c32 Remove a redundant cast (#598)
 https://dart.googlesource.com/protobuf.git/+/3df8669 Latest mono_repo (#601)
 https://dart.googlesource.com/protobuf.git/+/9da84ae Fix a potential issue in CodedBufferWriter (#594)
 https://dart.googlesource.com/protobuf.git/+/6be405f Remove old and unused test file (#589)
 https://dart.googlesource.com/protobuf.git/+/900cef5 Fix protoc_plugin run-tests make rule (#586)
 https://dart.googlesource.com/protobuf.git/+/2546269 Fix rounding when handling negative timestamps (#580)
 https://dart.googlesource.com/protobuf.git/+/8afce8d Fix Readme `pub get` instead of `pub install`. (#486)
 https://dart.googlesource.com/protobuf.git/+/782fd24 Avoid runtime function type check in lazily created singleton creator functions (#574)
 https://dart.googlesource.com/protobuf.git/+/a7e75cb Update README.md
 https://dart.googlesource.com/protobuf.git/+/23136dc Version bump (#563)
 https://dart.googlesource.com/protobuf.git/+/18346f5 Convert null keys and values to default when parsing map entries (#536)
 https://dart.googlesource.com/protobuf.git/+/bb4cf0b Bump to latest mono_repo - use latest actions (#561)
 https://dart.googlesource.com/protobuf.git/+/835ab75 Remove unneeded imports
 https://dart.googlesource.com/protobuf.git/+/ef733ac latest mono_repo
 https://dart.googlesource.com/protobuf.git/+/ecfb862 Fix test for latest analysis (#543)
 https://dart.googlesource.com/protobuf.git/+/26a0a26 fix insecure link in protoc_plugin readme
 https://dart.googlesource.com/protobuf.git/+/444e855 Bump dart-lang/setup-dart from 1.1 to 1.2 (#535)
 https://dart.googlesource.com/protobuf.git/+/d3e0e4a Fix analysis options
 https://dart.googlesource.com/protobuf.git/+/cf29280 Fix comment references

```

Diff: https://dart.googlesource.com/protobuf.git/+/c1eb6cb51af39ccbaa1a8e19349546586a5c8e31~..b149f801cf7a5e959cf1dbf72d61068ac275f24b/

Tested: relying on existing SDK and protobuf tests
Change-Id: I7f89b998a0aba13999d180ee9814a26a5f1d054d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/245228
Reviewed-by: Alexander Markov <[email protected]>
Reviewed-by: Ömer Ağacan <[email protected]>
Commit-Queue: Devon Carew <[email protected]>
This issue was closed.
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