Douglas Creager b705664d49 [ty] Handle typevars that have other typevars as a default (#17956) ...

It's possible for a typevar to list another typevar as its default
value:

```py
class C[T, U = T]: ...
```

When specializing this class, if a type isn't provided for `U`, we would
previously use the default as-is, leaving an unspecialized `T` typevar
in the specialization. Instead, we want to use what `T` is mapped to as
the type of `U`.

```py
reveal_type(C())  # revealed: C[Unknown, Unknown]
reveal_type(C[int]())  # revealed: C[int, int]
reveal_type(C[int, str]())  # revealed: C[int, str]
```

This is especially important for the `slice` built-in type.

2025-05-08 19:01:27 -04:00

..

annotations

Support typing.Self in methods (#17689)

2025-05-07 15:58:00 -07:00

assignment

Rename Red Knot (#17820)

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

binary

[ty] Add missing bitwise-operator branches for boolean and integer arithmetic (#17949)

2025-05-08 14:10:35 +01:00

boolean

Rename Red Knot (#17820)

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

boundness_declaredness

Update class literal display to use <class 'Foo'> style (#17889)

2025-05-06 20:11:25 -04:00

call

Support typing.Self in methods (#17689)

2025-05-07 15:58:00 -07:00

class

Update class literal display to use <class 'Foo'> style (#17889)

2025-05-06 20:11:25 -04:00

comparison

Rename Red Knot (#17820)

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

comprehensions

Rename Red Knot (#17820)

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

conditional

Rename Red Knot (#17820)

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

declaration

Rename Red Knot (#17820)

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

diagnostics

[ty] Implement global handling and load-before-global-declaration syntax error (#17637)

2025-05-08 10:30:04 -04:00

directives

Rename Red Knot (#17820)

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

doc

Rename Red Knot (#17820)

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

exception

Update class literal display to use <class 'Foo'> style (#17889)

2025-05-06 20:11:25 -04:00

expression

Update class literal display to use <class 'Foo'> style (#17889)

2025-05-06 20:11:25 -04:00

function

[ty] Recognise functions containing yield from expressions as being generator functions (#17930)

2025-05-07 23:29:44 +01:00

generics

[ty] Handle typevars that have other typevars as a default (#17956)

2025-05-08 19:01:27 -04:00

import

[ty] Support extending __all__ from an imported module even when the module is not an ExprName node (#17947)

2025-05-08 23:54:19 +01:00

literal

Rename Red Knot (#17820)

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

loops

Rename Red Knot (#17820)

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

narrow

Update class literal display to use <class 'Foo'> style (#17889)

2025-05-06 20:11:25 -04:00

regression

Rename Red Knot (#17820)

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

scopes

[ty] Implement global handling and load-before-global-declaration syntax error (#17637)

2025-05-08 10:30:04 -04:00

shadowing

Rename Red Knot (#17820)

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

snapshots

[ty] Make unused-ignore-comment disabled by default for now (#17955)

2025-05-08 17:21:34 +01:00

stubs

Update class literal display to use <class 'Foo'> style (#17889)

2025-05-06 20:11:25 -04:00

subscript

Update class literal display to use <class 'Foo'> style (#17889)

2025-05-06 20:11:25 -04:00

suppressions

Rename Red Knot (#17820)

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

type_of

Update class literal display to use <class 'Foo'> style (#17889)

2025-05-06 20:11:25 -04:00

type_properties

[ty] Check base classes when determining subtyping etc for generic aliases (#17927)

2025-05-07 15:21:11 -04:00

type_qualifiers

Rename Red Knot (#17820)

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

unary

Update class literal display to use <class 'Foo'> style (#17889)

2025-05-06 20:11:25 -04:00

with

Rename Red Knot (#17820)

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

.mdformat.toml

Rename Red Knot (#17820)

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

attributes.md

[ty] Handle typevars that have other typevars as a default (#17956)

2025-05-08 19:01:27 -04:00

cycle.md

[ty] add cycle handling for FunctionType::signature query (#17833)

2025-05-05 12:12:38 -07:00

dataclass_transform.md

[ty] Detect overloads decorated with @dataclass_transform (#17835)

2025-05-07 15:51:13 +02:00

dataclasses.md

Update class literal display to use <class 'Foo'> style (#17889)

2025-05-06 20:11:25 -04:00

decorators.md

[ty] Specialize bound methods and nominal instances (#17865)

2025-05-05 17:17:36 -04:00

descriptor_protocol.md

Update class literal display to use <class 'Foo'> style (#17889)

2025-05-06 20:11:25 -04:00

final.md

Rename Red Knot (#17820)

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

intersection_types.md

Rename Red Knot (#17820)

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

invalid_syntax.md

Rename Red Knot (#17820)

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

known_constants.md

Rename Red Knot (#17820)

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

mdtest_config.md

Rename Red Knot (#17820)

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

mdtest_custom_typeshed.md

[ty] Fix duplicate diagnostics for unresolved module when an import from statement imports multiple members (#17886)

2025-05-06 12:37:10 +01:00

metaclass.md

Update class literal display to use <class 'Foo'> style (#17889)

2025-05-06 20:11:25 -04:00

mro.md

[ty] Respect the gradual guarantee when reporting errors in resolving MROs (#17962)

2025-05-08 22:57:39 +01:00

named_tuple.md

Rename Red Knot (#17820)

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

overloads.md

Rename Red Knot (#17820)

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

pep695_type_aliases.md

Rename Red Knot (#17820)

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

properties.md

Rename Red Knot (#17820)

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

protocols.md

[ty] Report duplicate Protocol or Generic base classes with [duplicate-base], not [inconsistent-mro] (#17971)

2025-05-08 23:41:22 +01:00

slots.md

Rename Red Knot (#17820)

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

statically_known_branches.md

Rename Red Knot (#17820)

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

sys_platform.md

Rename Red Knot (#17820)

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

sys_version_info.md

Rename Red Knot (#17820)

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

terminal_statements.md

Rename Red Knot (#17820)

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

type_api.md

Update class literal display to use <class 'Foo'> style (#17889)

2025-05-06 20:11:25 -04:00

typed_dict.md

Rename Red Knot (#17820)

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

union_types.md

Rename Red Knot (#17820)

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

unpacking.md

Rename Red Knot (#17820)

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

unreachable.md

Rename Red Knot (#17820)

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