fix: avoid DuplicateBasesError crash inferring malformed enum class#3071
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Pierre-Sassoulas wants to merge 1 commit into
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fix: avoid DuplicateBasesError crash inferring malformed enum class#3071Pierre-Sassoulas wants to merge 1 commit into
Pierre-Sassoulas wants to merge 1 commit into
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``infer_enum_class`` iterates over ``node.mro()`` without guarding against an unresolvable MRO. A class with duplicate bases (e.g. ``class C(enum.Enum, enum.Enum)``) made ``mro()`` raise ``DuplicateBasesError``, which escaped the transform. Catch ``MroError`` and leave such a malformed class untransformed. Closes #3065
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #3071 +/- ##
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Coverage 93.52% 93.53%
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Files 92 92
Lines 11329 11333 +4
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+ Hits 10596 10600 +4
Misses 733 733
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Type of Changes
Description
infer_enum_classiterates overnode.mro()without guarding against an unresolvable MRO. A class with duplicate bases (e.g.class C(enum.Enum, enum.Enum)) mademro()raiseDuplicateBasesError, which escaped the transform. CatchMroErrorand leave such a malformed class untransformed.Closes #3065