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[ty] Reduce false positives for TypedDict types (#19354)

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This commit is contained in:
Alex Waygood
2025-07-15 12:47:19 +01:00
committed by GitHub
parent f3a27406c9
commit 002f9057db
8 changed files with 34 additions and 11 deletions
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2
crates/ty_python_semantic/resources/mdtest/narrow/assignment.md
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@@ -245,7 +245,7 @@ class D(TypedDict):
td = D(x=1, label="a")
td["x"] = 0
# TODO: should be Literal[0]
reveal_type(td["x"]) # revealed: @Todo(TypedDict)
reveal_type(td["x"]) # revealed: @Todo(Support for `TypedDict`)
# error: [unresolved-reference]
does["not"]["exist"] = 0

6
crates/ty_python_semantic/resources/mdtest/typed_dict.md
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@@ -10,8 +10,6 @@ class Person(TypedDict):
name: str
age: int | None
# TODO: This should not be an error:
# error: [invalid-assignment]
alice: Person = {"name": "Alice", "age": 30}
# Alternative syntax
@@ -22,6 +20,6 @@ msg = Message(id=1, content="Hello")
# No errors for yet-unsupported features (`closed`):
OtherMessage = TypedDict("OtherMessage", {"id": int, "content": str}, closed=True)
reveal_type(Person.__required_keys__) # revealed: @Todo(TypedDict)
reveal_type(Message.__required_keys__) # revealed: @Todo(TypedDict)
reveal_type(Person.__required_keys__) # revealed: @Todo(Support for `TypedDict`)
reveal_type(Message.__required_keys__) # revealed: @Todo(Support for `TypedDict`)
```