2 files changed, 35 insertions, 0 deletions
diff --git a/gcc/rust/expand/rust-expand-visitor.cc b/gcc/rust/expand/rust-expand-visitor.cc
index b2d1cf3..f93accd 100644
--- a/gcc/rust/expand/rust-expand-visitor.cc
+++ b/gcc/rust/expand/rust-expand-visitor.cc
@@ -1351,6 +1351,33 @@ ExpandVisitor::visit (AST::BareFunctionType &type)
 
 template <typename T>
 void
+ExpandVisitor::expand_outer_attribute (T &item, AST::SimplePath &path)
+{
+  // FIXME: Implement outer attribute expansion
+}
+
+template <typename T>
+void
+ExpandVisitor::visit_outer_attrs (T &item, std::vector<AST::Attribute> &attrs)
+{
+  for (auto it = attrs.begin (); it != attrs.end (); /* erase => No increment*/)
+    {
+      auto current = *it;
+
+      it = attrs.erase (it);
+      expand_outer_attribute (item, current.get_path ());
+    }
+}
+
+template <typename T>
+void
+ExpandVisitor::visit_outer_attrs (T &item)
+{
+  visit_outer_attrs (item, item.get_outer_attrs ());
+}
+
+template <typename T>
+void
 ExpandVisitor::expand_inner_attribute (T &item, AST::SimplePath &path)
 {
   // TODO: Warn about instability ?
diff --git a/gcc/rust/expand/rust-expand-visitor.h b/gcc/rust/expand/rust-expand-visitor.h
index 66dc187..e0ff37c 100644
--- a/gcc/rust/expand/rust-expand-visitor.h
+++ b/gcc/rust/expand/rust-expand-visitor.h
@@ -314,6 +314,14 @@ public:
   void visit (AST::BareFunctionType &type) override;
 
   template <typename T>
+  void expand_outer_attribute (T &item, AST::SimplePath &path);
+
+  template <typename T>
+  void visit_outer_attrs (T &item, std::vector<AST::Attribute> &attrs);
+
+  template <typename T> void visit_outer_attrs (T &item);
+
+  template <typename T>
   void expand_inner_attribute (T &item, AST::SimplePath &Path);
 
   template <typename T>