From 1363244de1afceaea4fea7d66093bf770e00c225 Mon Sep 17 00:00:00 2001
From: Tiark Rompf <tiark.rompf@epfl.ch>
Date: Wed, 14 Oct 2009 18:54:19 +0000
Subject: scala.collection.Vector defaults to immutable

---
 src/library/scala/collection/Vector.scala           |  7 ++++---
 src/library/scala/collection/immutable/Vector.scala | 14 ++++++--------
 2 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/src/library/scala/collection/Vector.scala b/src/library/scala/collection/Vector.scala
index 78228b6650..3b616c887b 100644
--- a/src/library/scala/collection/Vector.scala
+++ b/src/library/scala/collection/Vector.scala
@@ -6,13 +6,13 @@
 **                          |/                                          **
 \*                                                                      */
 
-// $Id$
+// $Id: Vector.scala 19035 2009-10-10 22:54:28Z rompf $
 
 
 package scala.collection
 
 import generic._
-import mutable.{Builder, ArrayBuffer}
+import scala.collection.mutable.Builder
 
 /** <p>
  *    Sequences that support O(1) element access and O(1) length computation.
@@ -34,8 +34,9 @@ trait Vector[+A] extends Seq[A]
 }
 
 object Vector extends SeqFactory[Vector] {
+  override def empty[A]: Vector[A] = immutable.Vector.empty[A]
   implicit def builderFactory[A]: BuilderFactory[A, Vector[A], Coll] = new VirtualBuilderFactory[A]
-  def newBuilder[A]: Builder[A, Vector[A]] = mutable.Vector.newBuilder[A]
+  def newBuilder[A]: Builder[A, Vector[A]] = immutable.Vector.newBuilder[A]
 
   @deprecated("use collection.mutable.Vector instead") type Mutable[A] = scala.collection.mutable.Vector[A]
 }
diff --git a/src/library/scala/collection/immutable/Vector.scala b/src/library/scala/collection/immutable/Vector.scala
index 21e032f255..30d766ee01 100644
--- a/src/library/scala/collection/immutable/Vector.scala
+++ b/src/library/scala/collection/immutable/Vector.scala
@@ -6,7 +6,7 @@
 **                          |/                                          **
 \*                                                                      */
 
-// $Id$
+// $Id: Vector.scala 19072 2009-10-13 12:19:59Z rompf $
 
 
 // Questions: how to name update, appendFront, appendBack?
@@ -17,7 +17,6 @@ package scala.collection
 package immutable
 
 import scala.annotation.unchecked.uncheckedVariance
-import compat.Platform.arraycopy
 
 import scala.collection.generic._
 import scala.collection.mutable.Builder
@@ -40,8 +39,8 @@ trait Vector[+A] extends Seq[A]
 object Vector extends SeqFactory[Vector] {
   implicit def builderFactory[A]: BuilderFactory[A, Vector[A], Coll] =
     new VirtualBuilderFactory[A]
-  def newBuilder[A]: Builder[A, Vector[A]] =
-    NewVector.newBuilder[A]
+  override def empty[A]: Vector[A] = NewVector.empty[A]
+  def newBuilder[A]: Builder[A, Vector[A]] = NewVector.newBuilder[A]
 }
 
 
@@ -59,8 +58,7 @@ trait NewVector[+A]  extends Vector[A]
 object NewVector extends SeqFactory[NewVector] {
   implicit def builderFactory[A]: BuilderFactory[A, NewVector[A], Coll] =
     new VirtualBuilderFactory[A]
-  def newBuilder[A]: Builder[A, NewVector[A]] =
-    new NewVectorBuilder[A]
+  def newBuilder[A]: Builder[A, NewVector[A]] = new NewVectorBuilder[A]
 
   // TODO: override object empty { }
 }
@@ -150,7 +148,7 @@ class NewVectorImpl[+A](startIndex: Int, endIndex: Int, focus: Int) extends NewV
 
   private def copyRange(array: Array[AnyRef], oldLeft: Int, newLeft: Int) = {
     val elems = new Array[AnyRef](32)
-    arraycopy(array, oldLeft, elems, newLeft, 32 - Math.max(newLeft,oldLeft))
+    System.arraycopy(array, oldLeft, elems, newLeft, 32 - Math.max(newLeft,oldLeft))
     elems
   }
 
@@ -745,7 +743,7 @@ trait NewVectorPointer[T] {
     final def copyOf(a: Array[AnyRef]) = {
 //      //println("copy")
       val b = new Array[AnyRef](a.length)
-      arraycopy(a, 0, b, 0, a.length)
+      System.arraycopy(a, 0, b, 0, a.length)
       b
     }
 
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