X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=compiler%2Frustc_lint%2Fsrc%2Fmultiple_supertrait_upcastable.rs;h=c2ed0e19f4011e5aa70221716ac318107c57f237;hb=5e958293e3d2bf3ee0b7e9101ea33c385ab704bc;hp=5861b826b1ca337309631b1ed4c5e0947f9adaf7;hpb=c52d58f346aea2e2e7ed650ee95785d33500a6d0;p=rust.git

diff --git a/compiler/rustc_lint/src/multiple_supertrait_upcastable.rs b/compiler/rustc_lint/src/multiple_supertrait_upcastable.rs
index 5861b826b1c..c2ed0e19f40 100644
--- a/compiler/rustc_lint/src/multiple_supertrait_upcastable.rs
+++ b/compiler/rustc_lint/src/multiple_supertrait_upcastable.rs
@@ -1,6 +1,5 @@
 use crate::{LateContext, LateLintPass, LintContext};
 
-use rustc_errors::DelayDm;
 use rustc_hir as hir;
 use rustc_span::sym;
 
@@ -37,8 +36,10 @@
 impl<'tcx> LateLintPass<'tcx> for MultipleSupertraitUpcastable {
     fn check_item(&mut self, cx: &LateContext<'tcx>, item: &'tcx hir::Item<'tcx>) {
         let def_id = item.owner_id.to_def_id();
+        // NOTE(nbdd0121): use `object_safety_violations` instead of `check_is_object_safe` because
+        // the latter will report `where_clause_object_safety` lint.
         if let hir::ItemKind::Trait(_, _, _, _, _) = item.kind
-            && cx.tcx.is_object_safe(def_id)
+            && cx.tcx.object_safety_violations(def_id).is_empty()
         {
             let direct_super_traits_iter = cx.tcx
                     .super_predicates_of(def_id)
@@ -46,16 +47,12 @@ fn check_item(&mut self, cx: &LateContext<'tcx>, item: &'tcx hir::Item<'tcx>) {
                     .into_iter()
                     .filter_map(|(pred, _)| pred.to_opt_poly_trait_pred());
             if direct_super_traits_iter.count() > 1 {
-                cx.struct_span_lint(
+                cx.emit_spanned_lint(
                     MULTIPLE_SUPERTRAIT_UPCASTABLE,
                     cx.tcx.def_span(def_id),
-                    DelayDm(|| {
-                        format!(
-                            "`{}` is object-safe and has multiple supertraits",
-                            item.ident,
-                        )
-                    }),
-                    |diag| diag,
+                    crate::lints::MultipleSupertraitUpcastable {
+                        ident: item.ident
+                    },
                 );
             }
         }