remove ItemLikeVisitor impls in incremental, interface, metadata and symbol_mangling crates

Signed-off-by: Miguel Guarniz <mi9uel9@gmail.com>

1 files changed, 2 insertions, 19 deletions

diff --git a/compiler/rustc_interface/src/proc_macro_decls.rs b/compiler/rustc_interface/src/proc_macro_decls.rs
index d0b895643c5..8652bd00fb7 100644
--- a/compiler/rustc_interface/src/proc_macro_decls.rs
+++ b/compiler/rustc_interface/src/proc_macro_decls.rs
@@ -1,6 +1,5 @@
 use rustc_hir as hir;
 use rustc_hir::def_id::LocalDefId;
-use rustc_hir::itemlikevisit::ItemLikeVisitor;
 use rustc_middle::ty::query::Providers;
 use rustc_middle::ty::TyCtxt;
 use rustc_span::symbol::sym;
@@ -9,10 +8,9 @@ fn proc_macro_decls_static(tcx: TyCtxt<'_>, (): ()) -> Option<LocalDefId> {
     let mut finder = Finder { tcx, decls: None };
 
     for id in tcx.hir().items() {
-        let item = tcx.hir().item(id);
-        let attrs = finder.tcx.hir().attrs(item.hir_id());
+        let attrs = finder.tcx.hir().attrs(id.hir_id());
         if finder.tcx.sess.contains_name(attrs, sym::rustc_proc_macro_decls) {
-            finder.decls = Some(item.hir_id());
+            finder.decls = Some(id.hir_id());
         }
     }
 
@@ -24,21 +22,6 @@ struct Finder<'tcx> {
     decls: Option<hir::HirId>,
 }
 
-impl<'v> ItemLikeVisitor<'v> for Finder<'_> {
-    fn visit_item(&mut self, item: &hir::Item<'_>) {
-        let attrs = self.tcx.hir().attrs(item.hir_id());
-        if self.tcx.sess.contains_name(attrs, sym::rustc_proc_macro_decls) {
-            self.decls = Some(item.hir_id());
-        }
-    }
-
-    fn visit_trait_item(&mut self, _trait_item: &hir::TraitItem<'_>) {}
-
-    fn visit_impl_item(&mut self, _impl_item: &hir::ImplItem<'_>) {}
-
-    fn visit_foreign_item(&mut self, _foreign_item: &hir::ForeignItem<'_>) {}
-}
-
 pub(crate) fn provide(providers: &mut Providers) {
     *providers = Providers { proc_macro_decls_static, ..*providers };
 }