Reference to runtime-evaluated-base-classes in the same file don't work

[iurisilvio]

For some reason, semantic.resolve_call_path(map_subscript(base)) resolves to None when the reference is in the same file.

ruff/crates/ruff_linter/src/rules/flake8_type_checking/helpers.rs

Lines 43 to 44 in f5e8507

	semantic
	.resolve_call_path(map_subscript(base))

• A minimal code snippet that reproduces the bug.

In this example, example1.MyBaseClass is a runtime evaluated base class.

example1.py

This triggers TCH003 for Sequence.

from __future__ import annotations

from collections.abc import Sequence  # TCH003


class MyBaseClass:
    pass


class Foo(MyBaseClass):
    foo: Sequence

example2.py

This is TCH compliant.

from __future__ import annotations

from collections.abc import Sequence

from example1 import MyBaseClass


class Foo(MyBaseClass):
    foo: Sequence

• The command you invoked (e.g., ruff /path/to/file.py --fix), ideally including the --isolated flag.

ruff --select TCH example1.py example2.py

• The current Ruff settings (any relevant sections from your pyproject.toml).

[tool.ruff.flake8-type-checking]
runtime-evaluated-base-classes = [
  "example1.MyBaseClass",
]

• The current Ruff version (ruff --version).

Main branch, currently 0.1.1.

[charliermarsh]

Thanks! Similar to (or the same as) #5486.

[charliermarsh]

I really appreciate that you dug into the code :)

[evanrittenhouse]

Feel free to assign this to me