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test that structural assignment works for recursive TypedDicts too

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Jack O'Connor 2025-11-14 17:14:53 -08:00
parent 8b0a217911
commit b2d6f35366
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crates/ty_python_semantic/resources/mdtest/typed_dict.md
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@ -1246,6 +1246,20 @@ nested: Node = {"name": "n1", "parent": {"name": "n2", "parent": {"name": "n3",
nested_invalid: Node = {"name": "n1", "parent": {"name": "n2", "parent": {"name": 3, "parent": None}}}
```
Structural assignment works for recursive `TypedDict`s too:
```py
class Person(TypedDict):
name: str
parent: Person | None
def _(node: Node, person: Person):
_: Person = node
_: Node = person
_: Node = Person(name="Alice", parent=Node(name="Bob", parent=Person(name="Charlie", parent=None)))
```
## Function/assignment syntax
This is not yet supported. Make sure that we do not emit false positives for this syntax: