ruff/crates/ty_python_semantic/resources/mdtest/dataclasses
justin 39b41838f3
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[ty] synthesize __setattr__ for frozen dataclasses (#19307)
## Summary

Synthesize a `__setattr__` method with a return type of `Never` for
frozen dataclasses.

https://docs.python.org/3/library/dataclasses.html#frozen-instances

https://docs.python.org/3/library/dataclasses.html#dataclasses.FrozenInstanceError

### Related
https://github.com/astral-sh/ty/issues/111
https://github.com/astral-sh/ruff/pull/17974#discussion_r2108527106
https://github.com/astral-sh/ruff/pull/18347#discussion_r2128174665

## Test Plan

New Markdown tests

---------

Co-authored-by: David Peter <mail@david-peter.de>
2025-07-18 11:35:05 +02:00
..
dataclass_transform.md
dataclasses.md [ty] synthesize __setattr__ for frozen dataclasses (#19307) 2025-07-18 11:35:05 +02:00
fields.md [ty] Enum literal types (#19328) 2025-07-15 21:31:53 +02:00