Merging debian version 1.65.0+dfsg1-2.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 15 insertions, 3 deletions

diff --git a/compiler/rustc_middle/src/ty/diagnostics.rs b/compiler/rustc_middle/src/ty/diagnostics.rs
index dd2f43210..855917fb8 100644
--- a/compiler/rustc_middle/src/ty/diagnostics.rs
+++ b/compiler/rustc_middle/src/ty/diagnostics.rs
@@ -102,13 +102,25 @@ pub fn suggest_arbitrary_trait_bound<'tcx>(
     generics: &hir::Generics<'_>,
     err: &mut Diagnostic,
     trait_pred: PolyTraitPredicate<'tcx>,
+    associated_ty: Option<(&'static str, Ty<'tcx>)>,
 ) -> bool {
     if !trait_pred.is_suggestable(tcx, false) {
         return false;
     }
 
     let param_name = trait_pred.skip_binder().self_ty().to_string();
-    let constraint = trait_pred.print_modifiers_and_trait_path().to_string();
+    let mut constraint = trait_pred.print_modifiers_and_trait_path().to_string();
+
+    if let Some((name, term)) = associated_ty {
+        // FIXME: this case overlaps with code in TyCtxt::note_and_explain_type_err.
+        // That should be extracted into a helper function.
+        if constraint.ends_with('>') {
+            constraint = format!("{}, {} = {}>", &constraint[..constraint.len() - 1], name, term);
+        } else {
+            constraint.push_str(&format!("<{} = {}>", name, term));
+        }
+    }
+
     let param = generics.params.iter().find(|p| p.name.ident().as_str() == param_name);
 
     // Skip, there is a param named Self
@@ -396,7 +408,7 @@ impl<'v> hir::intravisit::Visitor<'v> for TraitObjectVisitor<'v> {
             ) => {
                 self.0.push(ty);
             }
-            hir::TyKind::OpaqueDef(item_id, _) => {
+            hir::TyKind::OpaqueDef(item_id, _, _) => {
                 self.0.push(ty);
                 let item = self.1.item(item_id);
                 hir::intravisit::walk_item(self, item);
@@ -455,7 +467,7 @@ impl<'tcx> TypeVisitor<'tcx> for IsSuggestableVisitor<'tcx> {
                 }
             }
 
-            Dynamic(dty, _) => {
+            Dynamic(dty, _, _) => {
                 for pred in *dty {
                     match pred.skip_binder() {
                         ExistentialPredicate::Trait(_) | ExistentialPredicate::Projection(_) => {