Correctly handle cls in protocol classmethod #11119
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sobolevn
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Sep 20, 2021
| T = TypeVar('T') | ||
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| class HasDoX(Protocol): | ||
| @classmethod |
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What about @staticmethod? Does it fall into the same problem?
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staticmethod doesn't have this problem, because there's no self/cls to bind
mypy/subtypes.py
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| @@ -710,7 +710,7 @@ def find_node_type(node: Union[Var, FuncBase], itype: Instance, subtype: Type) - | |||
| and node.is_initialized_in_class | |||
| and not node.is_staticmethod)): | |||
| assert isinstance(typ, FunctionLike) | |||
| signature = bind_self(typ, subtype) | |||
| signature = bind_self(typ, subtype, isinstance(node, Var) and node.is_classmethod) | |||
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I think that adding argument name here would be better for readability.
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@sobolevn I've added argument name here, is there anything else I can do?
nullie
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tushar-deepsource
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Jan 20, 2022
Closes python#11115. Correctly handle cls in generic classmethods of protocol. This should correctly handle cls in classmethods. Current behavior of not passing is_classmethod seems like an omission in implementation, so this should only correct buggy behavior and shouldn't break something else. Adds a test case `testSelfTypeProtocolClassmethodMatch`.
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Description
Correctly handle cls in generic classmethods of protocol. Closes #11115
This should correctly handle cls in classmethods. Current behavior of not passing is_classmethod seems like an omission in implementation, so this should only correct buggy behavior and shouldn't break something else.
Test Plan
I've included a test in the test suite (testSelfTypeProtocolClassmethodMatch)