Buffer gets vararg +, += methods; small fixes.

1 files changed, 22 insertions, 0 deletions

diff --git a/src/library/scala/collection/mutable/Buffer.scala b/src/library/scala/collection/mutable/Buffer.scala
index 9d35ab0bed..cbe594bca1 100644
--- a/src/library/scala/collection/mutable/Buffer.scala
+++ b/src/library/scala/collection/mutable/Buffer.scala
@@ -35,6 +35,18 @@ trait Buffer[A] extends AnyRef
    */
   def +=(elem: A): Unit
 
+  /** Append a two or more elements to this buffer.
+   *
+   *  @param elem1 the first element to append.
+   *  @param elem2 the second element to append.
+   *  @param elems the remaining elements to append.
+   */
+  def +=(elem1: A, elem2: A, elems: A*): Unit = {
+    this += elem1
+    this += elem2
+    this ++= elems
+  }
+
   /** Append a single element to this buffer and return
    *  the identity of the buffer.
    *
@@ -42,6 +54,16 @@ trait Buffer[A] extends AnyRef
    */
   def +(elem: A): Buffer[A] = { this += elem; this }
 
+  /** Append two or more elements to this buffer and return
+   *  the identity of the buffer.
+   *
+   *  @param elem1 the first element to append.
+   *  @param elem2 the second element to append.
+   *  @param elems the remaining elements to append.
+   */
+  def +(elem1: A, elem2: A, elems: A*): Buffer[A] =
+    this + elem1 + elem2 ++ elems
+
   /** Prepend a single element to this buffer and return
    *  the identity of the buffer.
    *