Alex Waygood 43297d3455 [ty] Support isinstance() and issubclass() narrowing when the second argument is a typing.py stdlib alias (#21391) ...

## Summary

A followup to https://github.com/astral-sh/ruff/pull/21386

## Test Plan

New mdtests added

2025-11-11 21:09:24 +00:00

..

conditionals

[ty] Use declared variable types as bidirectional type context (#20796)

2025-10-16 15:40:39 -04:00

assert.md

…

assignment.md

[ty] Use type context for inference of generic constructors (#20933)

2025-11-10 21:49:48 +00:00

bool-call.md

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boolean.md

[ty] Consider __len__ when determining the truthiness of an instance of a tuple class or a @final class (#21049)

2025-10-24 09:29:55 +00:00

complex_target.md

[ty] No union with Unknown for module-global symbols (#20664)

2025-10-01 16:40:30 +02:00

hasattr.md

[ty] Improve error messages for unresolved attribute diagnostics (#20963)

2025-10-19 10:58:25 +01:00

isinstance.md

[ty] Support isinstance() and issubclass() narrowing when the second argument is a typing.py stdlib alias (#21391)

2025-11-11 21:09:24 +00:00

issubclass.md

[ty] Add diagnostics for isinstance() and issubclass() calls that use invalid PEP-604 unions for their second argument (#21343)

2025-11-10 08:46:31 +00:00

match.md

[ty] Use the top materialization of classes for narrowing in class-patterns for match statements (#21150)

2025-10-30 20:44:51 +00:00

post_if_statement.md

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truthiness.md

[ty] Reachability constraints (#18621)

2025-06-17 09:24:28 +02:00

type_guards.md

[ty] Filter out revealed-type and undefined-reveal diagnostics from mdtest snapshots (#20820)

2025-10-12 18:39:32 +00:00

type.md

[ty] linear variance inference for PEP-695 type parameters (#18713)

2025-08-19 17:54:09 -07:00

while.md

[ty] Eagerly simplify 'True' and 'False' constraints (#18998)

2025-06-30 13:11:52 +02:00