8000 Augmentation libraries: Augmented constructor initializers appear to be ignored. · Issue #55766 · dart-lang/sdk · GitHub
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Augmentation libraries: Augmented constructor initializers appear to be ignored. #55766

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rrousselGit opened this issue May 17, 2024 · 0 comments
Open

Augmentation libraries: Augmented constructor initializers appear to be ignored. #55766

rrousselGit opened this issue May 17, 2024 · 0 comments
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area-dart-model For issues related to conformance to the language spec in the parser, compilers or the CLI analyzer. cfe-feature-augmentation Implement augmentation features in the CFE cfe-feature-macros Implement macros features in the CFE feature-augmentations Implementation of the augmentations feature

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@rrousselGit
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Consider:

@Freezed()
class A {
  A(Map<String, Object?> map);
}

Where the generated code is:

augment class A {
  augment A(
    prefix0.Map<prefix0.String, prefix0.Object?> map, 
  ) : map = {'c': 42}; // Notice how we hard-coded the content

  final prefix0.Map<prefix0.String, prefix0.Object?> map;
}

In theory, print(A({'a': 0}).map should always print {'c': 42}. But somehow, this prints {'a': 0}.

This makes no sense, as the parameter is unused here, and the field initialization is hard-coded.
@lrhn lrhn added area-fe-analyzer-shared feature-augmentations Implementation of the augmentations feature labels May 19, 2024
@johnniwinther johnniwinther added cfe-feature-macros Implement macros features in the CFE cfe-feature-augmentation Implement augmentation features in the CFE labels May 23, 2024
@johnniwinther johnniwinther added area-dart-model For issues related to conformance to the language spec in the parser, compilers or the CLI analyzer. and removed legacy-area-fe-analyzer-shared labels Apr 1, 2025
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area-dart-model For issues related to conformance to the language spec in the parser, compilers or the CLI analyzer. cfe-feature-augmentation Implement augmentation features in the CFE cfe-feature-macros Implement macros features in the CFE feature-augmentations Implementation of the augmentations feature
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