[mypyc] Fix error handling when unboxing tuples - #21952
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Preserve conversion exceptions, such as i64 overflow, instead of replacing them with TypeError when unboxing tuple items. Clean up references to earlier items before propagating an error.
p-sawicki
approved these changes
Sep 7, 2026
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Preserve conversion exceptions, such as i64 overflow, instead of
replacing them with TypeError when unboxing tuple items. Clean
up references to earlier items before propagating an error.
I checked that the added tests behave as expected also at IR
level and would fail without the changes.
I used coding agent assist.