diff -r 21475ee0e688 -r 510d1ea1f6c1 CodeFileTreeNode.py
--- a/CodeFileTreeNode.py	Wed May 15 17:13:49 2013 +0900
+++ b/CodeFileTreeNode.py	Wed May 15 22:14:12 2013 +0200
@@ -90,6 +90,12 @@
     def GetDataTypes(self, basetypes = False):
         return self.GetCTRoot().GetDataTypes(basetypes=basetypes)
 
+    def GenerateNewName(self, format, start_idx):
+        return self.GetCTRoot().GenerateNewName(
+            None, None, format, start_idx,
+            dict([(var.getname(), None) 
+                  for var in self.CodeFile.variables.getvariable()]))
+
     def SetVariables(self, variables):
         self.CodeFile.variables.setvariable([])
         for var in variables: