David Peter 238f151371 [ty] Add support for Optional and Annotated in implicit type aliases (#21321) ...

## Summary

Add support for `Optional` and `Annotated` in implicit type aliases

part of https://github.com/astral-sh/ty/issues/221

## Typing conformance changes

New expected diagnostics.

## Ecosystem

A lot of true positives, some known limitations unrelated to this PR.

## Test Plan

New Markdown tests

2025-11-10 10:24:38 +01:00

..

annotated.md

[ty] Add support for Optional and Annotated in implicit type aliases (#21321)

2025-11-10 10:24:38 +01:00

any.md

[ty] Use "cannot" consistently over "can not" (#21255)

2025-11-03 10:38:20 -05:00

callable.md

[ty] Understand legacy and PEP 695 ParamSpec (#21139)

2025-11-06 11:14:40 -05:00

deferred.md

Rename Red Knot (#17820)

2025-05-03 19:49:15 +02:00

int_float_complex.md

[ty] Improve disjointness inference for NominalInstanceTypes and SubclassOfTypes (#18864)

2025-06-24 20:27:37 +00:00

invalid.md

[syntax-errors] Detect yield from inside async function (#20051)

2025-09-03 10:13:05 -04:00

literal_string.md

Rename Red Knot (#17820)

2025-05-03 19:49:15 +02:00

literal.md

[ty] Add support for Literals in implicit type aliases (#21296)

2025-11-07 17:46:55 +01:00

never.md

Rename Red Knot (#17820)

2025-05-03 19:49:15 +02:00

new_types.md

ty_python_semantic: add union type context to function call type errors

2025-05-09 13:40:51 -04:00

optional.md

Rename Red Knot (#17820)

2025-05-03 19:49:15 +02:00

self.md

[ty] Infer type of self for decorated methods and properties (#21123)

2025-10-29 21:22:38 +00:00

starred.md

[ty] Return Option<TupleType> from infer_tuple_type_expression (#19735)

2025-08-04 13:48:19 +01:00

stdlib_typing_aliases.md

[ty] Fix bug where ty would think all types had an __mro__ attribute (#20995)

2025-10-27 11:19:12 +00:00

string.md

[ty] Emit error for invalid binary operations in type expressions (#18991)

2025-06-30 10:06:01 +02:00

union.md

[ty] Implicit type aliases: Support for PEP 604 unions (#21195)

2025-11-03 21:50:25 +01:00

unsupported_special_forms.md

[ty] Understand legacy and PEP 695 ParamSpec (#21139)

2025-11-06 11:14:40 -05:00

unsupported_special_types.md

Generalize special-casing for enums constructed with the functional syntax (#17885)

2025-05-06 11:02:55 +01:00

unsupported_type_qualifiers.md

[ty] validate constructor call of TypedDict (#19810)

2025-08-25 14:45:52 +02:00