JS: Allow many Array steps to be used in type-tracking#16739
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asgerf merged 10 commits intogithub:mainfrom Jun 20, 2024
Merged
JS: Allow many Array steps to be used in type-tracking#16739asgerf merged 10 commits intogithub:mainfrom
asgerf merged 10 commits intogithub:mainfrom
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Oh how I have enjoyed working with InlineExpectationTests for these sort of things, not worrying about all the .expected files changing because you add a few lines in the middle of your tests :D
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Evaluation looks good. Do you want to take this out of draft?
javascript/ql/lib/change-notes/2024-06-14-type-tracking-array-steps.md
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…steps.md Co-authored-by: Asger F <asgerf@github.com>
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New library gets FN for spread arguments in a call to splice(), which was added to the old version in this PR: github#16739
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I also spotted a mistake in Array.splice modeling, so I also fixed it up.
I think the big question is whether we actually want to have these steps part of normal type-tracking; by allowing read of array elements at any position, we might not handle examples like the one below precisely (and think the call
f()could target any of the 3 functions)note: I didn't actually test this out, just thinking out loud