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[ty] Understand classes that inherit from subscripted Protocol[] as generic (#17832)

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Alex Waygood 2025-05-09 17:39:15 +01:00 • committed by GitHub
parent 2370297cde
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35 changed files with 451 additions and 183 deletions
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4
crates/ty_python_semantic/resources/mdtest/annotations/self.md
View file

@ -33,7 +33,9 @@ class Shape:
reveal_type(self) # revealed: Unknown
return self
reveal_type(Shape().nested_type()) # revealed: @Todo(specialized non-generic class)
# TODO: should be `list[Shape]`
reveal_type(Shape().nested_type()) # revealed: list[Self]
reveal_type(Shape().nested_func()) # revealed: Shape
class Circle(Shape):

2
crates/ty_python_semantic/resources/mdtest/annotations/starred.md
View file

@ -14,7 +14,7 @@ Ts = TypeVarTuple("Ts")
def append_int(*args: *Ts) -> tuple[*Ts, int]:
# TODO: tuple[*Ts]
reveal_type(args) # revealed: tuple
reveal_type(args) # revealed: tuple[Unknown, ...]
return (*args, 1)

51
crates/ty_python_semantic/resources/mdtest/annotations/stdlib_typing_aliases.md
View file

@ -30,24 +30,22 @@ def f(
ordered_dict_bare: typing.OrderedDict,
ordered_dict_parametrized: typing.OrderedDict[int, str],
):
# TODO: revealed: list[Unknown]
reveal_type(list_bare) # revealed: list
reveal_type(list_bare) # revealed: list[Unknown]
# TODO: revealed: list[int]
reveal_type(list_parametrized) # revealed: list
reveal_type(list_parametrized) # revealed: list[Unknown]
reveal_type(dict_bare) # revealed: dict[Unknown, Unknown]
# TODO: revealed: dict[int, str]
reveal_type(dict_parametrized) # revealed: dict[Unknown, Unknown]
# TODO: revealed: set[Unknown]
reveal_type(set_bare) # revealed: set
reveal_type(set_bare) # revealed: set[Unknown]
# TODO: revealed: set[int]
reveal_type(set_parametrized) # revealed: set
reveal_type(set_parametrized) # revealed: set[Unknown]
# TODO: revealed: frozenset[Unknown]
reveal_type(frozen_set_bare) # revealed: frozenset
reveal_type(frozen_set_bare) # revealed: frozenset[Unknown]
# TODO: revealed: frozenset[str]
reveal_type(frozen_set_parametrized) # revealed: frozenset
reveal_type(frozen_set_parametrized) # revealed: frozenset[Unknown]
reveal_type(chain_map_bare) # revealed: ChainMap[Unknown, Unknown]
# TODO: revealed: ChainMap[str, int]
@ -61,10 +59,9 @@ def f(
# TODO: revealed: defaultdict[str, int]
reveal_type(default_dict_parametrized) # revealed: defaultdict[Unknown, Unknown]
# TODO: revealed: deque[Unknown]
reveal_type(deque_bare) # revealed: deque
reveal_type(deque_bare) # revealed: deque[Unknown]
# TODO: revealed: deque[str]
reveal_type(deque_parametrized) # revealed: deque
reveal_type(deque_parametrized) # revealed: deque[Unknown]
reveal_type(ordered_dict_bare) # revealed: OrderedDict[Unknown, Unknown]
# TODO: revealed: OrderedDict[int, str]
@ -84,26 +81,23 @@ import typing
class ListSubclass(typing.List): ...
# TODO: generic protocols
# revealed: tuple[<class 'ListSubclass'>, <class 'list'>, <class 'MutableSequence'>, <class 'Sequence'>, <class 'Reversible'>, <class 'Collection'>, <class 'Iterable'>, <class 'Container'>, @Todo(`Protocol[]` subscript), typing.Generic, <class 'object'>]
# revealed: tuple[<class 'ListSubclass'>, <class 'list[Unknown]'>, <class 'MutableSequence[Unknown]'>, <class 'Sequence[Unknown]'>, <class 'Reversible[Unknown]'>, <class 'Collection[Unknown]'>, <class 'Iterable[Unknown]'>, <class 'Container[Unknown]'>, typing.Protocol[_T_co], typing.Generic[_T_co], <class 'object'>]
reveal_type(ListSubclass.__mro__)
class DictSubclass(typing.Dict): ...
# TODO: generic protocols
# revealed: tuple[<class 'DictSubclass'>, <class 'dict[Unknown, Unknown]'>, <class 'MutableMapping[Unknown, Unknown]'>, <class 'Mapping[Unknown, Unknown]'>, <class 'Collection'>, <class 'Iterable'>, <class 'Container'>, @Todo(`Protocol[]` subscript), typing.Generic, typing.Generic[_KT, _VT_co], <class 'object'>]
# TODO: should not have multiple `Generic[]` elements
# revealed: tuple[<class 'DictSubclass'>, <class 'dict[Unknown, Unknown]'>, <class 'MutableMapping[Unknown, Unknown]'>, <class 'Mapping[Unknown, Unknown]'>, <class 'Collection[Unknown]'>, <class 'Iterable[Unknown]'>, <class 'Container[Unknown]'>, typing.Protocol[_T_co], typing.Generic[_T_co], typing.Generic[_KT, _VT_co], <class 'object'>]
reveal_type(DictSubclass.__mro__)
class SetSubclass(typing.Set): ...
# TODO: generic protocols
# revealed: tuple[<class 'SetSubclass'>, <class 'set'>, <class 'MutableSet'>, <class 'AbstractSet'>, <class 'Collection'>, <class 'Iterable'>, <class 'Container'>, @Todo(`Protocol[]` subscript), typing.Generic, <class 'object'>]
# revealed: tuple[<class 'SetSubclass'>, <class 'set[Unknown]'>, <class 'MutableSet[Unknown]'>, <class 'AbstractSet[Unknown]'>, <class 'Collection[Unknown]'>, <class 'Iterable[Unknown]'>, <class 'Container[Unknown]'>, typing.Protocol[_T_co], typing.Generic[_T_co], <class 'object'>]
reveal_type(SetSubclass.__mro__)
class FrozenSetSubclass(typing.FrozenSet): ...
# TODO: generic protocols
# revealed: tuple[<class 'FrozenSetSubclass'>, <class 'frozenset'>, <class 'AbstractSet'>, <class 'Collection'>, <class 'Iterable'>, <class 'Container'>, @Todo(`Protocol[]` subscript), typing.Generic, <class 'object'>]
# revealed: tuple[<class 'FrozenSetSubclass'>, <class 'frozenset[Unknown]'>, <class 'AbstractSet[Unknown]'>, <class 'Collection[Unknown]'>, <class 'Iterable[Unknown]'>, <class 'Container[Unknown]'>, typing.Protocol[_T_co], typing.Generic[_T_co], <class 'object'>]
reveal_type(FrozenSetSubclass.__mro__)
####################
@ -112,31 +106,30 @@ reveal_type(FrozenSetSubclass.__mro__)
class ChainMapSubclass(typing.ChainMap): ...
# TODO: generic protocols
# revealed: tuple[<class 'ChainMapSubclass'>, <class 'ChainMap[Unknown, Unknown]'>, <class 'MutableMapping[Unknown, Unknown]'>, <class 'Mapping[Unknown, Unknown]'>, <class 'Collection'>, <class 'Iterable'>, <class 'Container'>, @Todo(`Protocol[]` subscript), typing.Generic, typing.Generic[_KT, _VT_co], <class 'object'>]
# TODO: should not have multiple `Generic[]` elements
# revealed: tuple[<class 'ChainMapSubclass'>, <class 'ChainMap[Unknown, Unknown]'>, <class 'MutableMapping[Unknown, Unknown]'>, <class 'Mapping[Unknown, Unknown]'>, <class 'Collection[Unknown]'>, <class 'Iterable[Unknown]'>, <class 'Container[Unknown]'>, typing.Protocol[_T_co], typing.Generic[_T_co], typing.Generic[_KT, _VT_co], <class 'object'>]
reveal_type(ChainMapSubclass.__mro__)
class CounterSubclass(typing.Counter): ...
# TODO: Should be (CounterSubclass, Counter, dict, MutableMapping, Mapping, Collection, Sized, Iterable, Container, Generic, object)
# revealed: tuple[<class 'CounterSubclass'>, <class 'Counter[Unknown]'>, <class 'dict[Unknown, int]'>, <class 'MutableMapping[Unknown, int]'>, <class 'Mapping[Unknown, int]'>, <class 'Collection'>, <class 'Iterable'>, <class 'Container'>, @Todo(`Protocol[]` subscript), typing.Generic, typing.Generic[_KT, _VT_co], typing.Generic[_T], <class 'object'>]
# TODO: Should have one `Generic[]` element, not three(!)
# revealed: tuple[<class 'CounterSubclass'>, <class 'Counter[Unknown]'>, <class 'dict[Unknown, int]'>, <class 'MutableMapping[Unknown, int]'>, <class 'Mapping[Unknown, int]'>, <class 'Collection[Unknown]'>, <class 'Iterable[Unknown]'>, <class 'Container[Unknown]'>, typing.Protocol[_T_co], typing.Generic[_T_co], typing.Generic[_KT, _VT_co], typing.Generic[_T], <class 'object'>]
reveal_type(CounterSubclass.__mro__)
class DefaultDictSubclass(typing.DefaultDict): ...
# TODO: Should be (DefaultDictSubclass, defaultdict, dict, MutableMapping, Mapping, Collection, Sized, Iterable, Container, Generic, object)
# revealed: tuple[<class 'DefaultDictSubclass'>, <class 'defaultdict[Unknown, Unknown]'>, <class 'dict[Unknown, Unknown]'>, <class 'MutableMapping[Unknown, Unknown]'>, <class 'Mapping[Unknown, Unknown]'>, <class 'Collection'>, <class 'Iterable'>, <class 'Container'>, @Todo(`Protocol[]` subscript), typing.Generic, typing.Generic[_KT, _VT_co], <class 'object'>]
# TODO: Should not have multiple `Generic[]` elements
# revealed: tuple[<class 'DefaultDictSubclass'>, <class 'defaultdict[Unknown, Unknown]'>, <class 'dict[Unknown, Unknown]'>, <class 'MutableMapping[Unknown, Unknown]'>, <class 'Mapping[Unknown, Unknown]'>, <class 'Collection[Unknown]'>, <class 'Iterable[Unknown]'>, <class 'Container[Unknown]'>, typing.Protocol[_T_co], typing.Generic[_T_co], typing.Generic[_KT, _VT_co], <class 'object'>]
reveal_type(DefaultDictSubclass.__mro__)
class DequeSubclass(typing.Deque): ...
# TODO: generic protocols
# revealed: tuple[<class 'DequeSubclass'>, <class 'deque'>, <class 'MutableSequence'>, <class 'Sequence'>, <class 'Reversible'>, <class 'Collection'>, <class 'Iterable'>, <class 'Container'>, @Todo(`Protocol[]` subscript), typing.Generic, <class 'object'>]
# revealed: tuple[<class 'DequeSubclass'>, <class 'deque[Unknown]'>, <class 'MutableSequence[Unknown]'>, <class 'Sequence[Unknown]'>, <class 'Reversible[Unknown]'>, <class 'Collection[Unknown]'>, <class 'Iterable[Unknown]'>, <class 'Container[Unknown]'>, typing.Protocol[_T_co], typing.Generic[_T_co], <class 'object'>]
reveal_type(DequeSubclass.__mro__)
class OrderedDictSubclass(typing.OrderedDict): ...
# TODO: Should be (OrderedDictSubclass, OrderedDict, dict, MutableMapping, Mapping, Collection, Sized, Iterable, Container, Generic, object)
# revealed: tuple[<class 'OrderedDictSubclass'>, <class 'OrderedDict[Unknown, Unknown]'>, <class 'dict[Unknown, Unknown]'>, <class 'MutableMapping[Unknown, Unknown]'>, <class 'Mapping[Unknown, Unknown]'>, <class 'Collection'>, <class 'Iterable'>, <class 'Container'>, @Todo(`Protocol[]` subscript), typing.Generic, typing.Generic[_KT, _VT_co], <class 'object'>]
# TODO: Should not have multiple `Generic[]` elements
# revealed: tuple[<class 'OrderedDictSubclass'>, <class 'OrderedDict[Unknown, Unknown]'>, <class 'dict[Unknown, Unknown]'>, <class 'MutableMapping[Unknown, Unknown]'>, <class 'Mapping[Unknown, Unknown]'>, <class 'Collection[Unknown]'>, <class 'Iterable[Unknown]'>, <class 'Container[Unknown]'>, typing.Protocol[_T_co], typing.Generic[_T_co], typing.Generic[_KT, _VT_co], <class 'object'>]
reveal_type(OrderedDictSubclass.__mro__)
```

4
crates/ty_python_semantic/resources/mdtest/annotations/unsupported_special_forms.md
View file

@ -16,7 +16,7 @@ Alias: TypeAlias = int
def f(*args: Unpack[Ts]) -> tuple[Unpack[Ts]]:
# TODO: should understand the annotation
reveal_type(args) # revealed: tuple
reveal_type(args) # revealed: tuple[Unknown, ...]
reveal_type(Alias) # revealed: @Todo(Support for `typing.TypeAlias`)
@ -24,7 +24,7 @@ def g() -> TypeGuard[int]: ...
def h() -> TypeIs[int]: ...
def i(callback: Callable[Concatenate[int, P], R_co], *args: P.args, **kwargs: P.kwargs) -> R_co:
# TODO: should understand the annotation
reveal_type(args) # revealed: tuple
reveal_type(args) # revealed: tuple[Unknown, ...]
reveal_type(kwargs) # revealed: dict[str, @Todo(Support for `typing.ParamSpec`)]
return callback(42, *args, **kwargs)

4
crates/ty_python_semantic/resources/mdtest/assignment/annotations.md
View file

@ -61,7 +61,7 @@ reveal_type(d) # revealed: tuple[tuple[str, str], tuple[int, int]]
reveal_type(e) # revealed: @Todo(full tuple[...] support)
reveal_type(f) # revealed: @Todo(full tuple[...] support)
reveal_type(g) # revealed: @Todo(full tuple[...] support)
reveal_type(h) # revealed: tuple[@Todo(specialized non-generic class), @Todo(specialized non-generic class)]
reveal_type(h) # revealed: tuple[list[int], list[int]]
reveal_type(i) # revealed: tuple[str | int, str | int]
reveal_type(j) # revealed: tuple[str | int]
@ -76,7 +76,7 @@ a: tuple[()] = (1, 2)
# error: [invalid-assignment] "Object of type `tuple[Literal["foo"]]` is not assignable to `tuple[int]`"
b: tuple[int] = ("foo",)
# error: [invalid-assignment] "Object of type `tuple[list, Literal["foo"]]` is not assignable to `tuple[str | int, str]`"
# error: [invalid-assignment] "Object of type `tuple[list[Unknown], Literal["foo"]]` is not assignable to `tuple[str | int, str]`"
c: tuple[str | int, str] = ([], "foo")
```

2
crates/ty_python_semantic/resources/mdtest/attributes.md
View file

@ -1728,7 +1728,7 @@ reveal_type(False.real) # revealed: Literal[0]
All attribute access on literal `bytes` types is currently delegated to `builtins.bytes`:
```py
# revealed: bound method Literal[b"foo"].join(iterable_of_bytes: @Todo(specialized non-generic class), /) -> bytes
# revealed: bound method Literal[b"foo"].join(iterable_of_bytes: Iterable[@Todo(Support for `typing.TypeAlias`)], /) -> bytes
reveal_type(b"foo".join)
# revealed: bound method Literal[b"foo"].endswith(suffix: @Todo(Support for `typing.TypeAlias`), start: SupportsIndex | None = ellipsis, end: SupportsIndex | None = ellipsis, /) -> bool
reveal_type(b"foo".endswith)

3
crates/ty_python_semantic/resources/mdtest/expression/lambda.md
View file

@ -79,8 +79,7 @@ lambda x=1: reveal_type(x) # revealed: Unknown | Literal[1]
Using a variadic parameter:
```py
# TODO: should be `tuple[Unknown, ...]` (needs generics)
lambda *args: reveal_type(args) # revealed: tuple
lambda *args: reveal_type(args) # revealed: tuple[Unknown, ...]
```
Using a keyword-variadic parameter:

7
crates/ty_python_semantic/resources/mdtest/function/parameters.md
View file

@ -25,8 +25,8 @@ def f(a, b: int, c=1, d: int = 2, /, e=3, f: Literal[4] = 4, *args: object, g=5,
reveal_type(f) # revealed: Literal[4]
reveal_type(g) # revealed: Unknown | Literal[5]
reveal_type(h) # revealed: Literal[6]
# TODO: should be `tuple[object, ...]` (needs generics)
reveal_type(args) # revealed: tuple
# TODO: should be `tuple[object, ...]`
reveal_type(args) # revealed: tuple[Unknown, ...]
reveal_type(kwargs) # revealed: dict[str, str]
```
@ -36,8 +36,7 @@ def f(a, b: int, c=1, d: int = 2, /, e=3, f: Literal[4] = 4, *args: object, g=5,
```py
def g(*args, **kwargs):
# TODO: should be `tuple[Unknown, ...]` (needs generics)
reveal_type(args) # revealed: tuple
reveal_type(args) # revealed: tuple[Unknown, ...]
reveal_type(kwargs) # revealed: dict[str, Unknown]
```

29
crates/ty_python_semantic/resources/mdtest/generics/legacy/classes.md
View file

@ -399,7 +399,7 @@ In a specialized generic alias, the specialization is applied to the attributes
class.
```py
from typing import Generic, TypeVar
from typing import Generic, TypeVar, Protocol
T = TypeVar("T")
U = TypeVar("U")
@ -425,6 +425,33 @@ reveal_type(c.y) # revealed: str
reveal_type(c.method1()) # revealed: int
reveal_type(c.method2()) # revealed: str
reveal_type(c.method3()) # revealed: LinkedList[int]
class SomeProtocol(Protocol[T]):
x: T
class Foo:
x: int
class D(Generic[T, U]):
x: T
y: U
def method1(self) -> T:
return self.x
def method2(self) -> U:
return self.y
def method3(self) -> SomeProtocol[T]:
return Foo()
d = D[int, str]()
reveal_type(d.x) # revealed: int
reveal_type(d.y) # revealed: str
reveal_type(d.method1()) # revealed: int
reveal_type(d.method2()) # revealed: str
reveal_type(d.method3()) # revealed: SomeProtocol[int]
reveal_type(d.method3().x) # revealed: int
```
## Cyclic class definitions

1
crates/ty_python_semantic/resources/mdtest/generics/legacy/variables.md
View file

@ -38,6 +38,7 @@ T = TypeVar("T")
U: TypeVar = TypeVar("U")
# error: [invalid-legacy-type-variable] "A legacy `typing.TypeVar` must be immediately assigned to a variable"
# error: [invalid-type-form] "Function calls are not allowed in type expressions"
TestList = list[TypeVar("W")]
```

2
crates/ty_python_semantic/resources/mdtest/generics/pep695/classes.md
View file

@ -65,7 +65,7 @@ from typing import Generic, TypeVar
T = TypeVar("T")
# error: [invalid-generic-class] "Cannot both inherit from `Generic` and use PEP 695 type variables"
# error: [invalid-generic-class] "Cannot both inherit from `typing.Generic` and use PEP 695 type variables"
class BothGenericSyntaxes[U](Generic[T]): ...
```

2
crates/ty_python_semantic/resources/mdtest/import/dunder_all.md
View file

@ -785,7 +785,7 @@ from subexporter import *
# TODO: Should be `list[str]`
# TODO: Should we avoid including `Unknown` for this case?
reveal_type(__all__) # revealed: Unknown | list
reveal_type(__all__) # revealed: Unknown | list[Unknown]
__all__.append("B")

2
crates/ty_python_semantic/resources/mdtest/literal/collections/list.md
View file

@ -3,5 +3,5 @@
## Empty list
```py
reveal_type([]) # revealed: list
reveal_type([]) # revealed: list[Unknown]
```

2
crates/ty_python_semantic/resources/mdtest/literal/collections/set.md
View file

@ -3,5 +3,5 @@
## Basic set
```py
reveal_type({1, 2}) # revealed: set
reveal_type({1, 2}) # revealed: set[Unknown]
```

4
crates/ty_python_semantic/resources/mdtest/named_tuple.md
View file

@ -48,8 +48,8 @@ alice2 = Person2(1, "Alice")
# TODO: should be an error
Person2(1)
reveal_type(alice2.id) # revealed: @Todo(GenericAlias instance)
reveal_type(alice2.name) # revealed: @Todo(GenericAlias instance)
reveal_type(alice2.id) # revealed: @Todo(functional `NamedTuple` syntax)
reveal_type(alice2.name) # revealed: @Todo(functional `NamedTuple` syntax)
```
### Multiple Inheritance

6
crates/ty_python_semantic/resources/mdtest/narrow/match.md
View file

@ -133,11 +133,11 @@ match x:
case "foo" | 42 | None:
reveal_type(x) # revealed: Literal["foo", 42] | None
case "foo" | tuple():
reveal_type(x) # revealed: tuple
reveal_type(x) # revealed: tuple[Unknown, ...]
case True | False:
reveal_type(x) # revealed: bool
case 3.14 | 2.718 | 1.414:
reveal_type(x) # revealed: float & ~tuple
reveal_type(x) # revealed: float & ~tuple[Unknown, ...]
reveal_type(x) # revealed: object
```
@ -155,7 +155,7 @@ reveal_type(x) # revealed: object
match x:
case "foo" | 42 | None if reveal_type(x): # revealed: Literal["foo", 42] | None
pass
case "foo" | tuple() if reveal_type(x): # revealed: Literal["foo"] | tuple
case "foo" | tuple() if reveal_type(x): # revealed: Literal["foo"] | tuple[Unknown, ...]
pass
case True | False if reveal_type(x): # revealed: bool
pass

5
crates/ty_python_semantic/resources/mdtest/protocols.md
View file

@ -58,6 +58,7 @@ class Bar1(Protocol[T], Generic[T]):
class Bar2[T](Protocol):
x: T
# error: [invalid-generic-class] "Cannot both inherit from subscripted `typing.Protocol` and use PEP 695 type variables"
class Bar3[T](Protocol[T]):
x: T
```
@ -70,8 +71,8 @@ simultaneously:
class DuplicateBases(Protocol, Protocol[T]):
x: T
# TODO: should not have `Protocol` multiple times
# revealed: tuple[<class 'DuplicateBases'>, typing.Protocol, @Todo(`Protocol[]` subscript), typing.Generic, <class 'object'>]
# TODO: should not have `Protocol` or `Generic` multiple times
# revealed: tuple[<class 'DuplicateBases[Unknown]'>, typing.Protocol, typing.Generic, typing.Protocol[T], typing.Generic[T], <class 'object'>]
reveal_type(DuplicateBases.__mro__)
```

3
crates/ty_python_semantic/resources/mdtest/scopes/moduletype_attrs.md
View file

@ -13,8 +13,7 @@ reveal_type(__loader__) # revealed: LoaderProtocol | None
reveal_type(__package__) # revealed: str | None
reveal_type(__doc__) # revealed: str | None
reveal_type(__spec__) # revealed: ModuleSpec | None
reveal_type(__path__) # revealed: @Todo(specialized non-generic class)
reveal_type(__path__) # revealed: MutableSequence[str]
class X:
reveal_type(__name__) # revealed: str

6
crates/ty_python_semantic/resources/mdtest/subscript/lists.md
View file

@ -9,13 +9,13 @@ A list can be indexed into with:
```py
x = [1, 2, 3]
reveal_type(x) # revealed: list
reveal_type(x) # revealed: list[Unknown]
# TODO reveal int
reveal_type(x[0]) # revealed: Unknown
# TODO reveal list
reveal_type(x[0:1]) # revealed: @Todo(specialized non-generic class)
# TODO reveal list[int]
reveal_type(x[0:1]) # revealed: list[Unknown]
# error: [call-non-callable]
reveal_type(x["a"]) # revealed: Unknown

10
crates/ty_python_semantic/resources/mdtest/subscript/tuple.md
View file

@ -83,9 +83,8 @@ python-version = "3.9"
```py
class A(tuple[int, str]): ...
# Runtime value: `(A, tuple, object)`
# TODO: Generics
reveal_type(A.__mro__) # revealed: tuple[<class 'A'>, @Todo(GenericAlias instance), <class 'object'>]
# revealed: tuple[<class 'A'>, <class 'tuple[@Todo(Generic tuple specializations), ...]'>, <class 'Sequence[@Todo(Generic tuple specializations)]'>, <class 'Reversible[@Todo(Generic tuple specializations)]'>, <class 'Collection[@Todo(Generic tuple specializations)]'>, <class 'Iterable[@Todo(Generic tuple specializations)]'>, <class 'Container[@Todo(Generic tuple specializations)]'>, typing.Protocol[_T_co], typing.Generic[_T_co], <class 'object'>]
reveal_type(A.__mro__)
```
## `typing.Tuple`
@ -100,7 +99,7 @@ from typing import Any, Tuple
class A: ...
def _(c: Tuple, d: Tuple[int, A], e: Tuple[Any, ...]):
reveal_type(c) # revealed: tuple
reveal_type(c) # revealed: tuple[Unknown, ...]
reveal_type(d) # revealed: tuple[int, A]
reveal_type(e) # revealed: @Todo(full tuple[...] support)
```
@ -115,7 +114,6 @@ from typing import Tuple
class C(Tuple): ...
# TODO: generic protocols
# revealed: tuple[<class 'C'>, <class 'tuple'>, <class 'Sequence'>, <class 'Reversible'>, <class 'Collection'>, <class 'Iterable'>, <class 'Container'>, @Todo(`Protocol[]` subscript), typing.Generic, <class 'object'>]
# revealed: tuple[<class 'C'>, <class 'tuple[Unknown, ...]'>, <class 'Sequence[Unknown]'>, <class 'Reversible[Unknown]'>, <class 'Collection[Unknown]'>, <class 'Iterable[Unknown]'>, <class 'Container[Unknown]'>, typing.Protocol[_T_co], typing.Generic[_T_co], <class 'object'>]
reveal_type(C.__mro__)
```

3
crates/ty_python_semantic/resources/mdtest/type_properties/is_subtype_of.md
View file

@ -151,7 +151,8 @@ static_assert(not is_subtype_of(tuple[B1, B2], tuple[()]))
static_assert(not is_subtype_of(tuple[B1, B2], tuple[A1]))
static_assert(not is_subtype_of(tuple[B1, B2], tuple[A1, A2, Unrelated]))
static_assert(is_subtype_of(tuple[int], tuple))
# TODO: should pass
static_assert(is_subtype_of(tuple[int], tuple[object, ...])) # error: [static-assert-error]
```
## Union types

6
crates/ty_python_semantic/resources/primer/bad.txt
View file

@ -6,14 +6,20 @@ cpython # access to field whilst being initialized, too many cycle iterations
discord.py # some kind of hang, only when multi-threaded?
freqtrade # hangs
hydpy # too many iterations
ibis # too many iterations
jax # too many iterations
packaging # too many iterations
pandas # slow
pandas-stubs # hangs/slow, or else https://github.com/salsa-rs/salsa/issues/831
pandera # stack overflow
pip # vendors packaging, see above
prefect # slow
pylint # cycle panics (self-recursive type alias)
pyodide # too many cycle iterations
pywin32 # bad use-def map (binding with definitely-visible unbound)
schemathesis # https://github.com/salsa-rs/salsa/issues/831
scikit-learn # success, but mypy-primer hangs processing the output
setuptools # vendors packaging, see above
spack # success, but mypy-primer hangs processing the output
spark # too many iterations
steam.py # hangs

6
crates/ty_python_semantic/resources/primer/good.txt
View file

@ -42,13 +42,11 @@ git-revise
graphql-core
httpx-caching
hydra-zen
ibis
ignite
imagehash
isort
itsdangerous
janus
jax
jinja
koda-validate
kopf
@ -70,11 +68,9 @@ openlibrary
operator
optuna
paasta
packaging
paroxython
parso
pegen
pip
poetry
porcupine
ppb-vector
@ -86,7 +82,6 @@ pydantic
pyinstrument
pyjwt
pylox
pyodide
pyp
pyppeteer
pytest
@ -100,7 +95,6 @@ rotki
schema_salad
scipy
scrapy
setuptools
sockeye
speedrun.com_global_scoreboard_webapp
sphinx