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Assert original type exists during function redefinition #13509

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Merged
JukkaL merged 1 commit into from
Aug 25, 2022
Merged

Assert original type exists during function redefinition #13509

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6 changes: 1 addition & 5 deletions mypy/checker.py
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Original file line number Diff line number Diff line change
Expand Up @@ -959,11 +959,7 @@ def _visit_func_def(self, defn: FuncDef) -> None:
# Function definition overrides a variable initialized via assignment or a
# decorated function.
orig_type = defn.original_def.type
if orig_type is None:
# XXX This can be None, as happens in
# test_testcheck_TypeCheckSuite.testRedefinedFunctionInTryWithElse
self.msg.note("Internal mypy error checking function redefinition", defn)
return
assert orig_type is not None, f"Error checking function redefinition {defn}"
if isinstance(orig_type, PartialType):
if orig_type.type is None:
# Ah this is a partial type. Give it the type of the function.
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