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Douglas Creager 2cf5cba7ff
[ty] Check base classes when determining subtyping etc for generic aliases (#17927) 
#17897 added variance handling for legacy typevars — but they were only
being considered when checking generic aliases of the same class:

```py
class A: ...
class B(A): ...

class C[T]: ...

static_assert(is_subtype_of(C[B], C[A]))
```

and not for generic subclasses:

```py
class D[U](C[U]): ...

static_assert(is_subtype_of(D[B], C[A]))
```

Now we check those too!

Closes https://github.com/astral-sh/ty/issues/101
2025-05-07 15:21:11 -04:00
..
mdtest [ty] Check base classes when determining subtyping etc for generic aliases (#17927) 2025-05-07 15:21:11 -04:00
primer [ty] Ecosystem checks: activate running on 'manticore' (#17916) 2025-05-07 06:27:36 -07:00
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.