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misc: return earlier on name = None

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Ada Alakbarova
2025-08-19 23:56:00 +02:00
parent 34f96a2082
commit e243f89e3a
1 changed files with 5 additions and 4 deletions
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clippy_utils/src/higher.rs
+5 -4
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@@ -287,20 +287,21 @@ pub fn hir(cx: &LateContext<'_>, expr: &'a Expr<'_>) -> Option<VecArgs<'a>> {
&& let ExprKind::Path(ref qpath) = fun.kind
&& is_expn_of(fun.span, sym::vec).is_some()
&& let Some(fun_def_id) = cx.qpath_res(qpath, fun.hir_id).opt_def_id()
&& let Some(name) = cx.tcx.get_diagnostic_name(fun_def_id)
{
return match (cx.tcx.get_diagnostic_name(fun_def_id), args) {
(Some(sym::vec_from_elem), [elem, size]) => {
return match (name, args) {
(sym::vec_from_elem, [elem, size]) => {
// `vec![elem; size]` case
Some(VecArgs::Repeat(elem, size))
},
(Some(sym::slice_into_vec), [slice])
(sym::slice_into_vec, [slice])
if let ExprKind::Call(_, [arg]) = slice.kind
&& let ExprKind::Array(args) = arg.kind =>
{
// `vec![a, b, c]` case
Some(VecArgs::Vec(args))
},
(Some(sym::vec_new), []) => Some(VecArgs::Vec(&[])),
(sym::vec_new, []) => Some(VecArgs::Vec(&[])),
_ => None,
};
}