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Better diagnostic message

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This commit is contained in:
David Peter
2025-11-25 14:54:04 +01:00
parent 6aaa9d784a
commit 0a2536736b
2 changed files with 17 additions and 7 deletions
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11
crates/ty_python_semantic/resources/mdtest/implicit_type_aliases.md
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@@ -403,7 +403,6 @@ reveal_type(ListOrTuple) # revealed: types.UnionType
reveal_type(ListOrTupleLegacy) # revealed: types.UnionType
reveal_type(MyCallable) # revealed: GenericAlias
reveal_type(AnnotatedType) # revealed: <typing.Annotated special form>
# TODO: This should ideally be `T@TransparentAlias`
reveal_type(TransparentAlias) # revealed: typing.TypeVar
reveal_type(MyOptional) # revealed: types.UnionType
@@ -660,6 +659,16 @@ def _(
reveal_type(specialized) # revealed: Unknown
```
Similarly, if you try to specialize a union type without a binding context, we emit an error:
```py
# error: [invalid-type-form] "`types.UnionType` is not subscriptable"
x: (list[T] | set[T])[int]
def _():
reveal_type(x) # revealed: Unknown
```
### Multiple definitions
#### Shadowed definitions