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[red-knot] Any
cannot be parameterized (#14933)
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2 changed files with 23 additions and 1 deletions
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@ -69,3 +69,15 @@ y: int = Subclass() # error: [invalid-assignment]
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def _(s: Subclass):
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reveal_type(s) # revealed: Subclass
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```
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## Invalid
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`Any` cannot be parameterized:
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```py
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from typing import Any
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# error: [invalid-type-parameter] "Type `typing.Any` expected no type parameter"
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def f(x: Any[int]):
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reveal_type(x) # revealed: Unknown
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```
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@ -4863,7 +4863,17 @@ impl<'db> TypeInferenceBuilder<'db> {
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}
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KnownInstanceType::Type => self.infer_subclass_of_type_expression(parameters),
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KnownInstanceType::Tuple => self.infer_tuple_type_expression(parameters),
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KnownInstanceType::Any => Type::Any,
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KnownInstanceType::Any => {
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self.diagnostics.add_lint(
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&INVALID_TYPE_PARAMETER,
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subscript.into(),
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format_args!(
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"Type `{}` expected no type parameter",
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known_instance.repr(self.db)
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),
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);
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Type::Unknown
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}
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}
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}
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