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[ty] more simplification of infer_parameterized_legacy_typing_alias (#18526)

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Address post-land review on https://github.com/astral-sh/ruff/pull/18489
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Carl Meyer 2025-06-10 13:22:25 -07:00 • committed by GitHub
parent b21ac567e1
commit eb60bd64fd
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1 changed files with 7 additions and 7 deletions
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14
crates/ty_python_semantic/src/types/infer.rs
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@ -9108,12 +9108,12 @@ impl<'db> TypeInferenceBuilder<'db, '_> {
class: KnownClass,
) -> Type<'db> {
let arguments = &*subscript_node.slice;
let (args, args_number) = if let ast::Expr::Tuple(t) = arguments {
(t.iter(), t.len())
let args = if let ast::Expr::Tuple(t) = arguments {
&*t.elts
} else {
(std::slice::from_ref(arguments).iter(), 1)
std::slice::from_ref(arguments)
};
if args_number != expected_arg_count {
if args.len() != expected_arg_count {
if let Some(builder) = self.context.report_lint(&INVALID_TYPE_FORM, subscript_node) {
let noun = if expected_arg_count == 1 {
"argument"
@ -9122,14 +9122,14 @@ impl<'db> TypeInferenceBuilder<'db, '_> {
};
builder.into_diagnostic(format_args!(
"Legacy alias `{alias}` expected exactly {expected_arg_count} {noun}, \
got {args_number}",
got {}",
args.len()
));
}
}
let ty = class.to_specialized_instance(
self.db(),
args.into_iter()
.map(|node| self.infer_type_expression(node)),
args.iter().map(|node| self.infer_type_expression(node)),
);
if arguments.is_tuple_expr() {
self.store_expression_type(arguments, ty);