fix: Should not evaluate vars in child scope#17151
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JLHwung merged 4 commits intobabel:mainfrom Feb 26, 2025
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liuxingbaoyu
commented
Feb 24, 2025
| Q | A |
|---|---|
| Fixed Issues? | Fixes #8411 |
| Patch: Bug Fix? | √ |
| Major: Breaking Change? | |
| Minor: New Feature? | |
| Tests Added + Pass? | √ |
| Documentation PR Link | |
| Any Dependency Changes? | |
| License | MIT |
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Build successful! You can test your changes in the REPL here: https://babeljs.io/repl/build/58774 |
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| { | ||
| var doesExist = true; | ||
| doesExist; | ||
| } |
Member
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Can you also add these test cases?
var doesExist = true;
{ doesExist }{
var doesExist = true;
{ doesExist }
}{ var doesExist = true;
doesExist(this last one could return a confident result, but it's not a big deal if it does not)
| break; | ||
| } | ||
| if (scope.path.parentPath?.isIfStatement()) { | ||
| hasIf = true; |
Member
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Also while, for, for-of, try-catch. I'd prefer to list "known to be safe" statements (i.e. do-while and block), rather than potentially unsafe ones.
nicolo-ribaudo
approved these changes
Feb 26, 2025
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