Auto merge of #133509 - Urgau:dangling_lint_perf, r=Noratrieb

Recover some lost performence from #132732

This PR reorders some conditions in the `dangling_pointers_from_temporaries` lint to avoid some potentially expensive query call, in particular those who could involve some metadata decoding from disk.

cc https://github.com/rust-lang/rust/pull/132732#issuecomment-2499990683
cc `@Kobzol`
This commit is contained in:
bors 2024-11-27 21:19:54 +00:00
commit 66adeaf46b

View file

@ -130,11 +130,11 @@ impl DanglingPointerSearcher<'_, '_> {
fn lint_expr(cx: &LateContext<'_>, expr: &Expr<'_>) {
if let ExprKind::MethodCall(method, receiver, _args, _span) = expr.kind
&& let Some(fn_id) = cx.typeck_results().type_dependent_def_id(expr.hir_id)
&& cx.tcx.has_attr(fn_id, sym::rustc_as_ptr)
&& is_temporary_rvalue(receiver)
&& let ty = cx.typeck_results().expr_ty(receiver)
&& owns_allocation(cx.tcx, ty)
&& let Some(fn_id) = cx.typeck_results().type_dependent_def_id(expr.hir_id)
&& cx.tcx.has_attr(fn_id, sym::rustc_as_ptr)
{
// FIXME: use `emit_node_lint` when `#[primary_span]` is added.
cx.tcx.emit_node_span_lint(