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Fix value-position specializations

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This commit is contained in:
David Peter
2025-11-24 22:00:48 +01:00
parent 96c491099f
commit f184132d69
3 changed files with 31 additions and 4 deletions
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20
crates/ty_python_semantic/resources/mdtest/implicit_type_aliases.md
View File

@@ -462,19 +462,39 @@ expected:
IntsOrNone = MyList[int] | None
IntsOrStrs = Pair[int] | Pair[str]
ListOfPairs = MyList[Pair[str]]
ListOrTupleOfInts = ListOrTuple[int]
AnnotatedInt = AnnotatedType[int]
SubclassOfInt = MyType[int]
# TODO: No error here
# error: [too-many-positional-arguments] "Too many positional arguments: expected 1, got 2"
# error: [invalid-type-form] "List literals are not allowed in this context in a type expression: Did you mean `list[int]`?"
CallableIntToStr = MyCallable[[int], str]
reveal_type(IntsOrNone) # revealed: types.UnionType
reveal_type(IntsOrStrs) # revealed: types.UnionType
reveal_type(ListOfPairs) # revealed: <class 'list[tuple[str, str]]'>
reveal_type(ListOrTupleOfInts) # revealed: types.UnionType
reveal_type(AnnotatedInt) # revealed: <typing.Annotated special form>
reveal_type(SubclassOfInt) # revealed: GenericAlias
reveal_type(CallableIntToStr) # revealed: Unknown
def _(
ints_or_none: IntsOrNone,
ints_or_strs: IntsOrStrs,
list_of_pairs: ListOfPairs,
list_or_tuple_of_ints: ListOrTupleOfInts,
annotated_int: AnnotatedInt,
subclass_of_int: SubclassOfInt,
callable_int_to_str: CallableIntToStr,
):
reveal_type(ints_or_none) # revealed: list[int] | None
reveal_type(ints_or_strs) # revealed: tuple[int, int] | tuple[str, str]
reveal_type(list_of_pairs) # revealed: list[tuple[str, str]]
reveal_type(list_or_tuple_of_ints) # revealed: list[int] | tuple[int, ...]
reveal_type(annotated_int) # revealed: int
reveal_type(subclass_of_int) # revealed: type[int]
# TODO: This should be `(int, /) -> str`
reveal_type(callable_int_to_str) # revealed: Unknown
```
A generic implicit type alias can also be used in another generic implicit type alias:

6
crates/ty_python_semantic/resources/mdtest/pep613_type_aliases.md
View File

@@ -124,9 +124,11 @@ T = TypeVar("T")
Alias1: TypeAlias = list[T] | set[T]
MyAlias: TypeAlias = int | Alias1[str]
def _():
reveal_type(Alias1) # revealed: types.UnionType
def _(x: MyAlias):
# TODO: int | list[str] | set[str]
reveal_type(x) # revealed: int | @Todo(Specialization of union type alias)
reveal_type(x) # revealed: int | list[str] | set[str]
```
## Imported