Make InstantiatedPredicates impl IntoIterator

2023-01-03 03:32:59 +00:00
parent 91fd862df0
commit 9b28edb6d7
12 changed files with 74 additions and 65 deletions
--- a/compiler/rustc_trait_selection/src/traits/wf.rs
+++ b/compiler/rustc_trait_selection/src/traits/wf.rs
@@ -736,7 +736,7 @@ impl<'tcx> WfPredicates<'tcx> {
        trace!("{:#?}", predicates);
        debug_assert_eq!(predicates.predicates.len(), origins.len());

-        iter::zip(iter::zip(predicates.predicates, predicates.spans), origins.into_iter().rev())
+        iter::zip(predicates, origins.into_iter().rev())
            .map(|((mut pred, span), origin_def_id)| {
                let code = if span.is_dummy() {
                    traits::ItemObligation(origin_def_id)