1 files changed, 24 insertions, 0 deletions
diff --git a/src/library/scalax/collection/LazyBuilder.scala b/src/library/scalax/collection/LazyBuilder.scala
new file mode 100755
index 0000000000..784d437eba
--- /dev/null
+++ b/src/library/scalax/collection/LazyBuilder.scala
@@ -0,0 +1,24 @@
+/*                     __                                               *\
+**     ________ ___   / /  ___     Scala API                            **
+**    / __/ __// _ | / /  / _ |    (c) 2003-2007, LAMP/EPFL             **
+**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
+** /____/\___/_/ |_/____/_/ | |                                         **
+**                          |/                                          **
+\*                                                                      */
+
+// $Id: ListBuffer.scala 14378 2008-03-13 11:39:05Z dragos $
+
+package scalax.collection
+
+import collection.mutable.ListBuffer
+import collection.immutable.{List, Nil, ::}
+
+abstract class LazyBuilder[+CC[B], A] extends Builder[CC, A] {
+  protected var parts = new ListBuffer[Iterator[A]]
+  def +=(x: A) = { parts += Iterator.single(x) }
+  override def ++=(xs: Iterator[A]) { parts += xs }
+  override def ++=(xs: Iterable[A]) { parts += xs.elements }
+  def elements: Iterator[A] = Iterator.iteratorIteratorWrapper(parts.elements).flatten // !!! drop the wrapper and get an error
+  def result: CC[A]
+  def clear() { parts.clear() }
+}