ruff/crates/ty_python_semantic/resources
Carl Meyer 951766d1fb
[ty] default-specialize class-literal types in assignment to generic-alias types (#21883)
Fixes https://github.com/astral-sh/ty/issues/1832, fixes
https://github.com/astral-sh/ty/issues/1513

## Summary

A class object `C` (for which we infer an unspecialized `ClassLiteral`
type) should always be assignable to the type `type[C]` (which is
default-specialized, if `C` is generic). We already implemented this for
most cases, but we missed the case of a generic final type, where we
simplify `type[C]` to the `GenericAlias` type for the default
specialization of `C`. So we also need to implement this assignability
of generic `ClassLiteral` types as-if default-specialized.

## Test Plan

Added mdtests that failed before this PR.

---------

Co-authored-by: David Peter <mail@david-peter.de>
2025-12-10 17:18:08 +01:00
..
corpus [ty] Add test case for fixed panic (#21832) 2025-12-07 15:58:11 +00:00
mdtest [ty] default-specialize class-literal types in assignment to generic-alias types (#21883) 2025-12-10 17:18:08 +01:00
primer [ty] Add missing projects to `good.txt` (#21721) 2025-12-01 11:18:41 +01:00
README.md Rename Red Knot (#17820) 2025-05-03 19:49:15 +02:00

README.md

Markdown files within the mdtest/ subdirectory are tests of type inference and type checking; executed by the tests/mdtest.rs integration test.

See crates/ty_test/README.md for documentation of this test format.