ruff/crates/ruff_linter/resources/test/fixtures/flake8_pyi/PYI047.py
Alex Waygood 848e473f69
[flake8-pyi] Fix PYI047 false negatives on PEP-695 type aliases (#9566)
## Summary

Fixes one of the issues listed in
https://github.com/astral-sh/ruff/issues/8771. Fairly straightforward!

## Test Plan

`cargo test` / `cargo insta review`
2024-01-17 22:14:18 -05:00

31 lines
650 B
Python

import typing
import sys
from typing import TypeAlias
_UnusedPrivateTypeAlias: TypeAlias = int | None
_T: typing.TypeAlias = str
# OK
_UsedPrivateTypeAlias: TypeAlias = int | None
def func(arg: _UsedPrivateTypeAlias) -> _UsedPrivateTypeAlias:
...
if sys.version_info > (3, 9):
_PrivateTypeAlias: TypeAlias = str | None
else:
_PrivateTypeAlias: TypeAlias = float | None
def func2(arg: _PrivateTypeAlias) -> None: ...
type _UnusedPEP695 = int
type _UnusedGeneric695[T] = list[T]
type _UsedPEP695 = str
type _UsedGeneric695[T] = tuple[T, ...]
def func4(arg: _UsedPEP695) -> None: ...
def func5(arg: _UsedGeneric695[bytes]) -> None: ...