Fix crash on decorated anonymous class declaration - #63971
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Mateusz Burzyński (Andarist) wants to merge 4 commits into
Open
Fix crash on decorated anonymous class declaration#63971Mateusz Burzyński (Andarist) wants to merge 4 commits into
Mateusz Burzyński (Andarist) wants to merge 4 commits into
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Mateusz Burzyński (Andarist)
August 23, 2026 17:28
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Pull request overview
Fixes the decorated anonymous class crash by generating a class name before ES decorator transformation.
Changes:
- Detects decorators on the class itself or its children.
- Adds a compiler regression test and expected baselines.
Reviewed changes
Copilot reviewed 6 out of 6 changed files in this pull request and generated no comments.
Show a summary per file
| File | Description |
|---|---|
tsc/internal/transformers/tstransforms/runtimesyntax.go |
Generates names for decorated anonymous classes. |
tsc/testdata/tests/cases/compiler/anonymousClassDeclarationWithClassDecorator.ts |
Adds the crash regression case. |
tsc/testdata/baselines/reference/compiler/anonymousClassDeclarationWithClassDecorator.js |
Records emitted JavaScript. |
tsc/testdata/baselines/reference/compiler/anonymousClassDeclarationWithClassDecorator.errors.txt |
Records the expected diagnostic. |
tsc/testdata/baselines/reference/compiler/anonymousClassDeclarationWithClassDecorator.symbols |
Records symbol information. |
tsc/testdata/baselines/reference/compiler/anonymousClassDeclarationWithClassDecorator.types |
Records type information. |
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fixes #63962