changed tuple syntax to (...)

1 files changed, 5 insertions, 5 deletions

diff --git a/src/library/scala/collection/mutable/History.scala b/src/library/scala/collection/mutable/History.scala
index dbafbf29dc..4143e6e9de 100644
--- a/src/library/scala/collection/mutable/History.scala
+++ b/src/library/scala/collection/mutable/History.scala
@@ -21,9 +21,9 @@ package scala.collection.mutable
  *  @version 1.0, 08/07/2003
  */
 [serializable]
-class History[A, B] extends AnyRef with Subscriber[A, B] with Iterable[{B, A}] {
+class History[A, B] extends AnyRef with Subscriber[A, B] with Iterable[Pair[B, A]] {
 
-  protected val log: Queue[{B, A}] = new Queue[{B, A}]
+  protected val log: Queue[Pair[B, A]] = new Queue[Pair[B, A]]
 
   val maxHistory: Int = 1000
 
@@ -35,12 +35,12 @@ class History[A, B] extends AnyRef with Subscriber[A, B] with Iterable[{B, A}] {
     if (log.length >= maxHistory) {
       val old = log.dequeue;
     }
-    log.enqueue({pub, event})
+    log.enqueue(Pair(pub, event))
   }
 
-  def elements: Iterator[{B, A}] = log.elements
+  def elements: Iterator[Pair[B, A]] = log.elements
 
-  def events: Iterator[A] = log.elements.map { case {_, e} => e }
+  def events: Iterator[A] = log.elements.map { case Pair(_, e) => e }
 
   def size: Int = log.length