src/Pure/PIDE/markup_tree.scala
changeset 46712 8650d9a95736
parent 46178 1c5c88f6feb5
child 47539 436ae5ea4f80
--- a/src/Pure/PIDE/markup_tree.scala	Mon Feb 27 16:56:25 2012 +0100
+++ b/src/Pure/PIDE/markup_tree.scala	Mon Feb 27 17:13:25 2012 +0100
@@ -45,7 +45,7 @@
 }
 
 
-class Markup_Tree private(branches: Markup_Tree.Branches.T)
+final class Markup_Tree private(branches: Markup_Tree.Branches.T)
 {
   private def this(branches: Markup_Tree.Branches.T, entry: Markup_Tree.Entry) =
     this(branches + (entry.range -> entry))