[flake8-pyi] Various improvements to PYI034
#10807
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AlexWaygood
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| .args | ||
| .iter() | ||
| .any(|expr| is_metaclass_base(expr, semantic)) | ||
| analyze::class::any_qualified_name(class_def, semantic, &|qualified_name| { |
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IIRC this will recursively resolve subclasses (within the file). I'm not sure if that's intended in those case or not given the bullet in your PR summary.
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Superclasses rather than subclasses, right? ;)
But yup, that's what I want! Sorry if theh PR summary was unclear
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Oh right, "The current logic" refers to main, not the current logic of this PR. Of course.
Glyphack
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Apr 12, 2024
More accurately identify whether a class is a metaclass, a subclass of `collections.abc.Iterator`, or a subclass of `collections.abc.AsyncIterator`
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Summary
Currently, the logic for PYI034 is pretty-much copied straight from the original Y034 implementation in flake8-pyi. As such, the implementation reflects the limited semantic analysis that flake8-pyi is capable of -- but Ruff, with its more sophisticated semantic model, can do better here.
Specific improvements made:
is_metaclassnow recognises that subclasses of subclasses oftype/enum.EnumMeta/abc.ABCMetaare also metaclasses. (The current logic only recognises direct subclasses of these subclasses as being metaclasses. Any metaclass should be excluded from PYI034, as PEP 673 specifies that no methods in metaclasses may useSelfin annotations.)Iterator[T]are also flagged if their__iter__methods are annotated as returningIterator[T]rather thanSelf. Currently only direct subclasses ofIteratorare flagged.AsyncIterator[T]are also flagged if their__aiter__methods are annotated as returningAsyncIterator[T]rather thanSelf. Currently only direct subclasses ofAsyncIteratorare flagged.Test Plan
cargo test.