[ty] Fix panic on fuzzed slice expression in comprehension#23146
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[ty] Fix panic on fuzzed slice expression in comprehension#23146
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Clear the assignment stack when entering a comprehension scope so that outer assignment context (e.g., an `AnnAssign` from error-recovered AST) cannot leak into the inner scope and create definitions that reference expressions recorded in a different scope's `uses_map`. Closes astral-sh/ty#2317 Co-Authored-By: Claude Opus 4.6 <[email protected]>
charliermarsh
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charliermarsh
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dcreager and
sharkdp
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Summary
Clear the assignment stack when entering a comprehension scope so that outer assignment context (e.g., an
AnnAssignfrom error-recovered AST) cannot leak into the inner scope and create definitions that reference expressions recorded in a different scope'suses_map.Closes astral-sh/ty#2317.