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Use as_closure helper method

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Co-authored-by: lcnr <rust@lcnr.de>
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Oli Scherer 2022-11-21 16:52:01 +01:00 • committed by Oli Scherer
parent 7658e0fccf
commit 24cdb72445
1 changed files with 1 additions and 1 deletions
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2
src/tools/clippy/clippy_lints/src/eta_reduction.rs
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@ -124,7 +124,7 @@ impl<'tcx> LateLintPass<'tcx> for EtaReduction {
span_lint_and_then(cx, REDUNDANT_CLOSURE, expr.span, "redundant closure", |diag| {
if let Some(mut snippet) = snippet_opt(cx, callee.span) {
if let Some(fn_mut_id) = cx.tcx.lang_items().fn_mut_trait()
&& let args = cx.tcx.erase_late_bound_regions(ty::ClosureSubsts { substs }.sig()).inputs()
&& let args = cx.tcx.erase_late_bound_regions(substs.as_closure().sig()).inputs()
&& implements_trait(cx, callee_ty.peel_refs(), fn_mut_id, &args.iter().copied().map(Into::into).collect::<Vec<_>>())
&& path_to_local(callee).map_or(false, |l| local_used_after_expr(cx, l, expr))
{