ruff/crates/ty_python_semantic
David Peter da4be789ef
[ty] Ignore ClassVar declarations when resolving instance members (#18241)
## Summary

Make sure that the following definitions all lead to the same outcome
(bug originally noticed by @AlexWaygood)

```py
from typing import ClassVar

class Descriptor:
    def __get__(self, instance, owner) -> int:
        return 42

class C:
    a: ClassVar[Descriptor]
    b: Descriptor = Descriptor()
    c: ClassVar[Descriptor] = Descriptor()

reveal_type(C().a)  # revealed: int  (previously: int | Descriptor)
reveal_type(C().b)  # revealed: int
reveal_type(C().c)  # revealed: int
```

## Test Plan

New Markdown tests
2025-05-21 19:23:35 +02:00
..
resources [ty] Ignore ClassVar declarations when resolving instance members (#18241) 2025-05-21 19:23:35 +02:00
src [ty] Ignore ClassVar declarations when resolving instance members (#18241) 2025-05-21 19:23:35 +02:00
tests Switch to Rust 2024 edition (#18129) 2025-05-16 13:25:28 +02:00
build.rs Rename Red Knot (#17820) 2025-05-03 19:49:15 +02:00
Cargo.toml Rename Red Knot (#17820) 2025-05-03 19:49:15 +02:00
mdtest.py Rename Red Knot (#17820) 2025-05-03 19:49:15 +02:00
mdtest.py.lock Rename Red Knot (#17820) 2025-05-03 19:49:15 +02:00