segfault on recursive generic function class #18219
Description
Crash Report
Seg fault
Traceback
$ mypy . --show-traceback
Segmentation fault (core dumped)
To Reproduce
(Write what you did to reproduce the crash. Full source code is
appreciated. We also very much appreciate it if you try to narrow the
source down to a small stand-alone example.)
from __future__ import annotations
from typing import Callable
class Wrapper:
def __call__[**P, T](
self,
func: Callable[P, T] | None = None,
) -> Callable[P, T] | Wrapper:
if func is not None:
return func
return Wrapper()
Your Environment
- Mypy version used: 1.13.0
- Mypy command-line flags: N/A
- Mypy configuration options from
mypy.ini(and other config files): N/A - Python version used: 3.13.0
- Operating system and version: wsl 2.3.26.0