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Add find_map_relevant_impl

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This commit is contained in:
Dániel Buga 2020-10-09 15:28:32 +02:00
parent 2359ecc71f
commit 7993ddd89d
7 changed files with 51 additions and 27 deletions
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12
compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
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@ -1384,17 +1384,11 @@ impl<'a, 'tcx> InferCtxtPrivExt<'tcx> for InferCtxt<'a, 'tcx> {
trait_ref: &ty::PolyTraitRef<'tcx>,
) {
let get_trait_impl = |trait_def_id| {
let mut trait_impl = None;
self.tcx.for_each_relevant_impl(
self.tcx.find_map_relevant_impl(
trait_def_id,
trait_ref.skip_binder().self_ty(),
|impl_def_id| {
if trait_impl.is_none() {
trait_impl = Some(impl_def_id);
}
},
);
trait_impl
|impl_def_id| Some(impl_def_id),
)
};
let required_trait_path = self.tcx.def_path_str(trait_ref.def_id());
let all_traits = self.tcx.all_traits(LOCAL_CRATE);