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Fix change to predicates

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This commit is contained in:
varkor 2018-11-19 18:54:52 +00:00
parent 0ab70fab19
commit 737dec0ec1
1 changed files with 1 additions and 1 deletions
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2
src/librustc_lint/unused.rs
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@ -68,7 +68,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for UnusedResults {
ty::Adt(def, _) => check_must_use(cx, def.did, s.span, "", ""),
ty::Opaque(def, _) => {
let mut must_use = false;
for (predicate, _) in cx.tcx.predicates_of(def).predicates {
for (predicate, _) in &cx.tcx.predicates_of(def).predicates {
if let ty::Predicate::Trait(ref poly_trait_predicate) = predicate {
let trait_ref = poly_trait_predicate.skip_binder().trait_ref;
if check_must_use(cx, trait_ref.def_id, s.span, "implementer of ", "") {