Enhancement #623

2 files changed, 15 insertions, 2 deletions

diff --git a/src/library/scala/Iterable.scala b/src/library/scala/Iterable.scala
index a3fd4ca6d4..9cf18f3b46 100644
--- a/src/library/scala/Iterable.scala
+++ b/src/library/scala/Iterable.scala
@@ -408,13 +408,19 @@ trait Iterable[+A] {
   }
 
   /**
-   *  Create a fresh list with all the elements of this iterable object.
+   *  Returns a list containing all of the elements in this iterable object.
    *  @note Will not terminate for infinite-sized collections.
    */
   def toList: List[A] = elements.toList
 
   /**
-   *  Create a stream which contains all the elements of this iterable object.
+   *  Returns a sequence containing all of the elements in this iterable object.
+   *  @note Will not terminate for infinite-sized collections.
+   */
+  def toSeq: Seq[A] = toList
+
+  /**
+   *  Returns a stream containing all of the elements in this iterable object.
    *  @note consider using <code>projection</code> for lazy behavior.
    */
   def toStream: Stream[A] = Stream.fromIterator(elements)
diff --git a/src/library/scala/Seq.scala b/src/library/scala/Seq.scala
index ce619944f9..bc075fb745 100644
--- a/src/library/scala/Seq.scala
+++ b/src/library/scala/Seq.scala
@@ -375,6 +375,13 @@ trait Seq[+A] extends AnyRef with PartialFunction[Int, A] with Collection[A] {
     result
   }
 
+  /**
+   *  Overridden for efficiency.
+   *
+   *  @return  the sequence itself
+   */
+  override def toSeq: Seq[A] = this
+
   override def projection: Seq.Projection[A] = new Seq.Projection[A] {
     override def force: Seq[A] = Seq.this
     def elements = Seq.this.elements