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Unified Diff: pkg/csslib/lib/src/tree_base.dart

Issue 23819036: Support for @mixin, @include and @extend (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: All changes ready to commit Created 7 years, 2 months ago
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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);
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