bjoernager/rust
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Use iter::zip in compiler/

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This commit is contained in:
Josh Stone 2021-03-08 15:32:41 -08:00
parent 3b1f5e3462
commit 72ebebe474
87 changed files with 213 additions and 204 deletions
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6
compiler/rustc_trait_selection/src/traits/wf.rs
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@ -692,11 +692,7 @@ impl<'a, 'tcx> WfPredicates<'a, 'tcx> {
let predicates = predicates.instantiate(self.infcx.tcx, substs);
debug_assert_eq!(predicates.predicates.len(), origins.len());
predicates
.predicates
.into_iter()
.zip(predicates.spans.into_iter())
.zip(origins.into_iter().rev())
iter::zip(iter::zip(predicates.predicates, predicates.spans), origins.into_iter().rev())
.map(|((pred, span), origin_def_id)| {
let cause = self.cause(traits::BindingObligation(origin_def_id, span));
traits::Obligation::with_depth(cause, self.recursion_depth, self.param_env, pred)