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Treat type aliases as typing-only expressions (#7968)

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## Summary

Given `type RecordOrThings = Record | int | str`, the right-hand side
won't be evaluated at runtime. Same goes for `Record` in `type
RecordCallback[R: Record] = Callable[[R], None]`. This PR modifies the
visitation logic to treat them as typing-only.

Closes https://github.com/astral-sh/ruff/issues/7966.
This commit is contained in:
Charlie Marsh 2023-10-15 20:09:37 -04:00 • committed by GitHub
parent 8061894af6
commit b6e75e58c9
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4 changed files with 28 additions and 2 deletions
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19
crates/ruff_linter/resources/test/fixtures/flake8_type_checking/TCH004_15.py vendored Normal file
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@ -0,0 +1,19 @@
from __future__ import annotations
from collections.abc import Callable
from typing import TYPE_CHECKING
if TYPE_CHECKING:
from .foo import Record
type RecordOrThings = Record | int | str
type RecordCallback[R: Record] = Callable[[R], None]
def process_record[R: Record](record: R) -> None:
...
class RecordContainer[R: Record]:
def add_record(self, record: R) -> None:
...