Note type mismatch on ConstArgHasType

2023-03-09 22:08:48 +00:00 · 2023-03-09 22:08:48 +00:00 · 6c6bd01421
commit 6c6bd01421
parent e55f73ae47
4 changed files with 15 additions and 5 deletions
--- a/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
+++ b/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
@ -1282,10 +1282,20 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
                    ),

                    ty::PredicateKind::Clause(ty::Clause::ConstArgHasType(ct, ty)) => {
-                        self.tcx.sess.struct_span_err(
+                        let mut diag = self.tcx.sess.struct_span_err(
                            span,
                            &format!("the constant `{}` is not of type `{}`", ct, ty),
-                        )
+                        );
+                        self.note_type_err(
+                            &mut diag,
+                            &obligation.cause,
+                            None,
+                            None,
+                            TypeError::Sorts(ty::error::ExpectedFound::new(true, ty, ct.ty())),
+                            false,
+                            false,
+                        );
+                        diag
                    }
                }
            }