X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=src%2Flibrustc_resolve%2Flate.rs;h=8d11c7224c7044b9e1432004b96097373728c88c;hb=c5bb2ec0dd1f6f38117ec0e7e22c077a4b74dc09;hp=24d6331bbd37d757b0a952bddf87d54a46d8c0c3;hpb=e4d5f0596da62e9a14583d205027b69821dfc751;p=rust.git

diff --git a/src/librustc_resolve/late.rs b/src/librustc_resolve/late.rs
index 24d6331bbd3..8d11c7224c7 100644
--- a/src/librustc_resolve/late.rs
+++ b/src/librustc_resolve/late.rs
@@ -732,7 +732,6 @@ fn resolve_item(&mut self, item: &Item) {
 
         match item.kind {
             ItemKind::TyAlias(_, ref generics) |
-            ItemKind::OpaqueTy(_, ref generics) |
             ItemKind::Fn(_, ref generics, _) => {
                 self.with_generic_param_rib(generics, ItemRibKind(HasGenericParams::Yes),
                                             |this| visit::walk_item(this, item));
@@ -1087,18 +1086,6 @@ fn resolve_implementation(&mut self,
 
                                                 this.visit_ty(ty);
                                             }
-                                            ImplItemKind::OpaqueTy(ref bounds) => {
-                                                // If this is a trait impl, ensure the type
-                                                // exists in trait
-                                                this.check_trait_item(impl_item.ident,
-                                                                      TypeNS,
-                                                                      impl_item.span,
-                                                    |n, s| TypeNotMemberOfTrait(n, s));
-
-                                                for bound in bounds {
-                                                    this.visit_param_bound(bound);
-                                                }
-                                            }
                                             ImplItemKind::Macro(_) =>
                                                 panic!("unexpanded macro in resolve!"),
                                         }
@@ -1767,7 +1754,9 @@ fn resolve_qpath(
 
     fn with_resolved_label(&mut self, label: Option<Label>, id: NodeId, f: impl FnOnce(&mut Self)) {
         if let Some(label) = label {
-            self.diagnostic_metadata.unused_labels.insert(id, label.ident.span);
+            if label.ident.as_str().as_bytes()[1] != b'_' {
+                self.diagnostic_metadata.unused_labels.insert(id, label.ident.span);
+            }
             self.with_label_rib(NormalRibKind, |this| {
                 let ident = label.ident.modern_and_legacy();
                 this.label_ribs.last_mut().unwrap().bindings.insert(ident, id);