[Babel 8]: Fix incorrect LVal coverage#17387
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nicolo-ribaudo
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liuxingbaoyu
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Docs PR is ready, ptal: babel/website#3103 |
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Jun 18, 2025
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| function flattenLVal( | ||
| path: NodePath<t.LVal | t.OptionalMemberExpression>, | ||
| path: NodePath<t.LVal | t.PatternLike | t.OptionalMemberExpression>, |
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OptionalMemberExpression should probably be also an LVal itself just like MemberExpression is, rather than listing it separately?
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Yes. That will be a new feature and thus be handled in a new PR. (Breaking changes can be merged directly as long as it's behind the BABEL_8_BREAKING flag but features has to be waited for the next release).
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In this pull request we remove
AssignmentPatternandRestElementfrom theLValalias, since they must be nested within a pattern or a function parameter, rather than being allowed to be the LHS of an assignment. The typing usage in the codebase is also updated: we broaden the previoust.LValwitht.PatternLikesuch that it covers those two elements as well.