Context flag for with statements to avoid parent pointer walks#17900
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weswigham wants to merge 1 commit into
Closed
Context flag for with statements to avoid parent pointer walks#17900weswigham wants to merge 1 commit into
weswigham wants to merge 1 commit into
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@Andy-MS You have a similar change out that does a similar thing for the ambient context, do you have any opinions about this? |
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Duplicate of #17721? |
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@Andy-MS Absolutely a duplicate, closed. |
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We use
isInWithStatementBodyas a bailout condition all over the place in the checker - the most frequent places being at the top ofgetTypeOfNodeand insidegetContextualType. However it comes at a steep cost, as we are pretty much never within awithstatement body (they're not even valid syntax in strict mode), so we always walk all the way up to the containing source file.