Chromium Code Reviews| Index: pkg/csslib/lib/src/tree_base.dart |
| diff --git a/pkg/csslib/lib/src/tree_base.dart b/pkg/csslib/lib/src/tree_base.dart |
| index 31411d6d06013e62211f9cfe49e0130dafeb6340..29b955dcd229f672c61c7ab5182600df3a20e686 100644 |
| --- a/pkg/csslib/lib/src/tree_base.dart |
| +++ b/pkg/csslib/lib/src/tree_base.dart |
| @@ -13,6 +13,8 @@ abstract class TreeNode { |
| TreeNode(this.span) {} |
| + TreeNode clone(); |
| + |
| /** Classic double-dispatch visitor for implementing passes. */ |
| visit(VisitorBase visitor); |