Sequence->Seq

1 files changed, 32 insertions, 0 deletions

diff --git a/src/library/scala/collection/mutable/LinearSeq.scala b/src/library/scala/collection/mutable/LinearSeq.scala
new file mode 100644
index 0000000000..285dc7721d
--- /dev/null
+++ b/src/library/scala/collection/mutable/LinearSeq.scala
@@ -0,0 +1,32 @@
+/*                     __                                               *\
+**     ________ ___   / /  ___     Scala API                            **
+**    / __/ __// _ | / /  / _ |    (c) 2003-2009, LAMP/EPFL             **
+**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
+** /____/\___/_/ |_/____/_/ | |                                         **
+**                          |/                                          **
+\*                                                                      */
+
+// $Id$
+
+
+package scala.collection
+package mutable
+
+import generic._
+
+/** A subtrait of <code>collection.Seq</code> which represents sequences
+ *  that cannot be mutated.
+ *
+ *  @since 2.8
+ */
+trait LinearSeq[A] extends Seq[A]
+                           with scala.collection.LinearSeq[A]
+                           with GenericTraversableTemplate[A, LinearSeq]
+                           with LinearSeqLike[A, LinearSeq[A]] {
+  override def companion: GenericCompanion[LinearSeq] = LinearSeq
+}
+
+object LinearSeq extends SeqFactory[LinearSeq] {
+  implicit def builderFactory[A]: BuilderFactory[A, LinearSeq[A], Coll] = new VirtualBuilderFactory[A]
+  def newBuilder[A]: Builder[A, LinearSeq[A]] = new MutableList[A]
+}