renamed Vector to IndexedSeq

1 files changed, 49 insertions, 0 deletions

diff --git a/src/library/scala/collection/mutable/IndexedSeqLike.scala b/src/library/scala/collection/mutable/IndexedSeqLike.scala
new file mode 100644
index 0000000000..74117e3707
--- /dev/null
+++ b/src/library/scala/collection/mutable/IndexedSeqLike.scala
@@ -0,0 +1,49 @@
+/*                     __                                               *\
+**     ________ ___   / /  ___     Scala API                            **
+**    / __/ __// _ | / /  / _ |    (c) 2003-2009, LAMP/EPFL             **
+**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
+** /____/\___/_/ |_/____/_/ | |                                         **
+**                          |/                                          **
+\*                                                                      */
+
+// $Id$
+
+
+package scala.collection
+package mutable
+import generic._
+
+/** A subtrait of scala.collection.IndexedSeq which represents sequences
+ *  that can be mutated.
+ *
+ *  @since 2.8
+ */
+trait IndexedSeqLike[A, +Repr] extends scala.collection.IndexedSeqLike[A, Repr] { self =>
+
+  override protected[this] def thisCollection: IndexedSeq[A] = this.asInstanceOf[IndexedSeq[A]]
+  override protected[this] def toCollection(repr: Repr): IndexedSeq[A] = repr.asInstanceOf[IndexedSeq[A]]
+
+  def update(idx: Int, elem: A)
+
+  /** Creates a view of this iterable @see Iterable.View
+   */
+  override def view = new IndexedSeqView[A, Repr] {
+    protected lazy val underlying = self.repr
+    override def iterator = self.iterator
+    override def length = self.length
+    override def apply(idx: Int) = self.apply(idx)
+    override def update(idx: Int, elem: A) = self.update(idx, elem)
+  }
+
+  /** A sub-sequence view  starting at index `from`
+   *  and extending up to (but not including) index `until`.
+   *
+   *  @param from   The index of the first element of the slice
+   *  @param until  The index of the element following the slice
+   *  @note  The difference between `view` and `slice` is that `view` produces
+   *         a view of the current sequence, whereas `slice` produces a new sequence.
+   *
+   *  @note view(from, to)  is equivalent to view.slice(from, to)
+   */
+  override def view(from: Int, until: Int) = view.slice(from, until)
+}