[ty] lint:unresolved-reference for globals

[mitsuhiko]

Summary

_foo = False

def stuff():
    global _foo
    if not _foo:
        _foo = True

Gives the following type check warning:

warning: lint:unresolved-reference: Name `_foo` used when not defined
 --> test.py:5:12
  |
3 | def stuff():
4 |     global _foo
5 |     if not _foo:
  |            ^^^^
6 |         _foo = True
  |
info: `lint:unresolved-reference` is enabled by default

Version

ty 0.0.0-alpha.7 (905a3e1 2025-05-07)

[ntBre]

I think this should be fixed by astral-sh/ruff#17637, which should come out in alpha 8 momentarily!

#298

[AlexWaygood]

Confirmed that this is now fixed on the latest release: https://play.ty.dev/b5020ff1-6725-4b96-b23d-e0edcd73bb11