Add `TyCtxt::is_fn_trait`

[rust.git] / compiler / rustc_trait_selection / src / traits / error_reporting / suggestions.rs

diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs
index 4ae9b22f22171e42d862c3b75f17040a4a9b7e5c..ddffe25bc263c5e95c8b02029205824a75e33217 100644 (file)
--- a/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs
+++ b/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs
@@ -1679,9 +1679,7 @@ pub(crate) fn build_fn_sig_ty<'tcx>(
         ) -> Ty<'tcx> {
             let inputs = trait_ref.skip_binder().substs.type_at(1);
             let sig = match inputs.kind() {
-                ty::Tuple(inputs)
-                    if infcx.tcx.fn_trait_kind_from_def_id(trait_ref.def_id()).is_some() =>
-                {
+                ty::Tuple(inputs) if infcx.tcx.is_fn_trait(trait_ref.def_id()) => {
                     infcx.tcx.mk_fn_sig(
                         inputs.iter(),
                         infcx.next_ty_var(TypeVariableOrigin {
@@ -1752,7 +1750,7 @@ fn note_conflicting_closure_bounds(
             && let predicates = self.tcx.predicates_of(def_id).instantiate_identity(self.tcx)
             && let Some(pred) = predicates.predicates.get(*idx)
             && let ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred)) = pred.kind().skip_binder()
-            && self.tcx.fn_trait_kind_from_def_id(trait_pred.def_id()).is_some()
+            && self.tcx.is_fn_trait(trait_pred.def_id())
         {
             let expected_self =
                 self.tcx.anonymize_late_bound_regions(pred.kind().rebind(trait_pred.self_ty()));