Improve @babel/core typings #17471
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Improve @babel/core typings #17471
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JLHwung
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PR: Polish (next major) 💅
JLHwung
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Aug 7, 2025
| sourceMaps, | ||
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| // babel-generator does not differentiate between `true`, `"inline"` or `"both"` | ||
| sourceMaps: !!sourceMaps, |
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Here we cast generatorOpts.sourceMaps to boolean as required by the @babel/generator.
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Build successful! You can test your changes in the REPL here: https://babeljs.io/repl/build/59842 |
JLHwung
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Aug 7, 2025
| "private": true, | ||
| "type": "module", | ||
| "devDependencies": { | ||
| "$repo-utils": "link:../scripts/repo-utils", |
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This is a private package and will probably never be published, so we simply add $repo-utils here.
JLHwung
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Aug 7, 2025
| parserOpts?: ParserOptions; | ||
| // Deprecate top level generatorOpts | ||
| // Todo(Babel 9): Deprecate top level generatorOpts | ||
| generatorOpts?: GeneratorOptions; |
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The todo items have been here since 8 years ago, but I am not sure if we want to do it in Babel 8.
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The error will not be printed if failed fast
The size reduction comes from terser upgrade in the previous commit
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liuxingbaoyu
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In this PR we improved the typings of
@babel/core: For every functional properties inInputOptionsandPluginObject, it is now annotated with specific signatures. We also fixed incorrect typings in theloadOptionsAPI.We also added a new typing export for
@babel/traverse:VisitWrapper, used by theInputOptions#wrapPluginVisitorMethod. There is no new typing export from@babel/corethough.Also specified
terseras devDependency since it is required by the@babel/helpersbuild scripts.