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"""Regression tests for https://github.com/pylint-dev/pylint/issues/4660"""
# pylint: disable=useless-return, unused-argument
# pylint: disable=missing-docstring, too-few-public-methods, invalid-name
from __future__ import annotations
from typing import Union, Any, Literal, overload
from collections.abc import Callable
def my_print(*args: Any) -> None:
print(", ".join(str(x) for x in args))
return
# ---- This is OK ----
class MyClass:
def my_method(self, option: Literal["mandatory"]) -> Callable[..., Any]:
return my_print
c = MyClass().my_method("mandatory")
c(1, "foo")
# ---- This runs OK but pylint reports an error ----
class MyClass1:
@overload
def my_method(self, option: Literal["mandatory"]) -> Callable[..., Any]:
...
@overload
def my_method(
self, option: Literal["optional", "mandatory"]
) -> Union[None, Callable[..., Any]]:
...
def my_method(
self, option: Literal["optional", "mandatory"]
) -> Union[None, Callable[..., Any]]:
return my_print
d = MyClass1().my_method("mandatory")
d(1, "bar") # [not-callable]
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