ruff/crates/ty_python_semantic
David Peter 0d4f7dde99
[ty] Treat __new__ as a static method (#20212)
## Summary

Pull this out of https://github.com/astral-sh/ruff/pull/18473 as an
isolated change to make sure it has no adverse effects.

The wrong behavior is observable on `main` for something like
```py
class C:
    def __new__(cls) -> "C":
        cls.x = 1

C.x  # previously: Attribute `x` can only be accessed on instances
     # now:        Type `<class 'C'>` has no attribute `x`
```
where we currently treat `x` as an *instance* attribute (because we
consider `__new__` to be a normal function and `cls` to be the "self"
attribute). With this PR, we do not consider `x` to be an attribute,
neither on the class nor on instances of `C`. If this turns out to be an
important feature, we should add it intentionally, instead of
accidentally.

## Test Plan

Ecosystem checks.
2025-09-03 19:55:20 +02:00
..
resources [ty]eliminate definitely-impossible types from union in equality narrowing (#20164) 2025-09-03 08:34:22 -07:00
src [ty] Treat __new__ as a static method (#20212) 2025-09-03 19:55:20 +02:00
tests [ty] Track open files in the server (#19264) 2025-07-18 19:33:35 +05:30
build.rs Rename Red Knot (#17820) 2025-05-03 19:49:15 +02:00
Cargo.toml [ty] Avoid overcounting shared memory usage (#19773) 2025-08-06 15:32:02 -04:00
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