Generalize class/static method and property alias support #19297
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JukkaL
approved these changes
Jun 16, 2025
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| reveal_type(A().g) # N: Revealed type is "builtins.int" | ||
| reveal_type(A().g2) # N: Revealed type is "builtins.int" | ||
| A().g2 = 1 |
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Test assignment to A().g (should generate an error).
| def foo2(cls, x): | ||
| ... | ||
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| bar2 = foo2 |
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Is it worth it to also test static methods? Did they already work?
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Static methods already worked, but not overloaded ones. I added a test specifically for overloaded static method.
mypy/checker.py
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| @@ -8531,15 +8545,21 @@ def visit_type_alias_type(self, t: TypeAliasType) -> Type: | |||
| return t.copy_modified(args=[a.accept(self) for a in t.args]) | |||
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| def is_node_class(node: Node | None) -> bool | None: | |||
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Nit: Maybe rename to is_classmethod_node or similar? My initial thought what that this checks if the target is a "node class".
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Diff from mypy_primer, showing the effect of this PR on open source code: antidote (https://github.com/Finistere/antidote)
+ tests/core/test_inject_wrapper.py:228: error: Unused "type: ignore" comment [unused-ignore]
+ tests/core/test_inject_wrapper.py:234: error: Unused "type: ignore" comment [unused-ignore]
+ tests/core/test_inject_wrapper.py:240: error: Unused "type: ignore" comment [unused-ignore]
+ tests/core/test_inject_wrapper.py:336: error: Unused "type: ignore" comment [unused-ignore]
+ tests/core/test_inject_wrapper.py:342: error: Unused "type: ignore" comment [unused-ignore]
+ tests/core/test_inject_wrapper.py:348: error: Unused "type: ignore" comment [unused-ignore]
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Fixes #6700
This is another followup for the
checkmemberwork. Currently, we only support non-instance method aliasing in few very specific cases. I am making this support general.