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Skip unnecessary temp vars in path.insertAfter #14268

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merged 7 commits into from
Feb 14, 2022
Merged

Skip unnecessary temp vars in path.insertAfter #14268

merged 7 commits into from
Feb 14, 2022
+299 −277

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nicolo-ribaudo
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@nicolo-ribaudo nicolo-ribaudo commented Feb 13, 2022 •
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Q                       A
Tests Added + Pass? Yes
License MIT

@nicolo-ribaudo nicolo-ribaudo added the PR: Output optimization 🔬 A type of pull request used for our changelog categories label Feb 13, 2022
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babel-bot commented Feb 13, 2022 •
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Build successful! You can test your changes in the REPL here: https://babeljs.io/repl/build/51285/

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Register .pushed bindings in the correct scope

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Learn about vigilant mode
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Avoid injecting a new tmp var when there is one available
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Avoid temp var for super()
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@nicolo-ribaudo nicolo-ribaudo changed the title Avoid storing value of expressions hidden in sequences Skip some unnecessary temp vars in path.insertAfter Feb 13, 2022
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Searching for _temp = in our fixtures doesn't show other unnecessary variables 🥳

@nicolo-ribaudo nicolo-ribaudo changed the title Skip some unnecessary temp vars in path.insertAfter Skip unnecessary temp vars in path.insertAfter Feb 13, 2022
JLHwung
JLHwung approved these changes Feb 14, 2022
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packages/babel-traverse/src/path/modification.ts
} else {
// Inserting after the computed key of a method should insert the
// temporary binding in the method's parent's scope.
if (parentPath.isMethod({ computed: true, key: node })) {
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Not related to this PR: also need handling property and decorator expression.

existentialism
existentialism approved these changes Feb 14, 2022
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💯

@nicolo-ribaudo nicolo-ribaudo merged commit 020a7b0 into babel:main Feb 14, 2022
@nicolo-ribaudo nicolo-ribaudo deleted the traverse-no-temp-var-in-seq branch February 14, 2022 19:55
@github-actions github-actions bot added the outdated A closed issue/PR that is archived due to age. Recommended to make a new issue label May 17, 2022
@github-actions github-actions bot locked as resolved and limited conversation to collaborators May 17, 2022
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