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-rw-r--r--src/library/scala/collection/mutable/ObservableBuffer.scala7
1 files changed, 3 insertions, 4 deletions
diff --git a/src/library/scala/collection/mutable/ObservableBuffer.scala b/src/library/scala/collection/mutable/ObservableBuffer.scala
index e1cd8ace4d..b90f1a805c 100644
--- a/src/library/scala/collection/mutable/ObservableBuffer.scala
+++ b/src/library/scala/collection/mutable/ObservableBuffer.scala
@@ -23,10 +23,9 @@ import script._
* @version 1.0, 08/07/2003
* @since 1
*/
-trait ObservableBuffer[A, This <: ObservableBuffer[A, This]]
- extends Buffer[A]
- with Publisher[Message[A] with Undoable, This]
-{ self: This =>
+trait ObservableBuffer[A] extends Buffer[A] with Publisher[Message[A] with Undoable]
+{
+ type Pub <: ObservableBuffer[A]
abstract override def +=(element: A): this.type = {
super.+=(element)