Add Crate and Restricted variants to ast::Visibility

src/libsyntax/fold.rs

@@ -288,6 +288,10 @@ pub trait Folder : Sized {
         noop_fold_where_predicate(where_predicate, self)
     }
 
+    fn fold_vis(&mut self, vis: Visibility) -> Visibility {
+        noop_fold_vis(vis, self)
+    }
+
     fn new_id(&mut self, i: NodeId) -> NodeId {
         i
     }
@@ -992,7 +996,7 @@ pub fn noop_fold_impl_item<T: Folder>(i: ImplItem, folder: &mut T)
         id: folder.new_id(i.id),
         ident: folder.fold_ident(i.ident),
         attrs: fold_attrs(i.attrs, folder),
-        vis: i.vis,
+        vis: folder.fold_vis(i.vis),
         defaultness: i.defaultness,
         node: match i.node  {
             ast::ImplItemKind::Const(ty, expr) => {
@@ -1082,7 +1086,7 @@ pub fn noop_fold_item_simple<T: Folder>(Item {id, ident, attrs, node, vis, span}
         ident: folder.fold_ident(ident),
         attrs: fold_attrs(attrs, folder),
         node: node,
-        vis: vis,
+        vis: folder.fold_vis(vis),
         span: folder.new_span(span)
     }
 }
@@ -1100,7 +1104,7 @@ pub fn noop_fold_foreign_item<T: Folder>(ni: ForeignItem, folder: &mut T) -> For
                 ForeignItemKind::Static(folder.fold_ty(t), m)
             }
         },
-        vis: ni.vis,
+        vis: folder.fold_vis(ni.vis),
         span: folder.new_span(ni.span)
     }
 }
@@ -1391,6 +1395,16 @@ pub fn noop_fold_stmt<T: Folder>(Spanned {node, span}: Stmt, folder: &mut T)
     }
 }
 
+pub fn noop_fold_vis<T: Folder>(vis: Visibility, folder: &mut T) -> Visibility {
+    match vis {
+        Visibility::Restricted { path, id } => Visibility::Restricted {
+            path: path.map(|path| folder.fold_path(path)),
+            id: folder.new_id(id)
+        },
+        _ => vis,
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use std::io;