1 files changed, 18 insertions, 0 deletions
diff --git a/src/library/scala/collection/generic/SortedMapFactory.scala b/src/library/scala/collection/generic/SortedMapFactory.scala
new file mode 100644
index 0000000000..938ce145f9
--- /dev/null
+++ b/src/library/scala/collection/generic/SortedMapFactory.scala
@@ -0,0 +1,18 @@
+package scala.collection.generic
+
+/** A template for companion objects of mutable.Map and subclasses thereof.
+ */
+abstract class SortedMapFactory[CC[A, B] <: SortedMap[A, B] with SortedMapTemplate[A, B, CC[A, B]]] {
+
+  type Coll = CC[_, _]
+
+  def newBuilder[A, B](implicit ord: Ordering[A]): Builder[(A, B), CC[A, B]]
+
+  def empty[A, B](implicit ord: Ordering[A]): CC[A, B]
+
+  def apply[A, B](elems: (A, B)*)(implicit ord: Ordering[A]): CC[A, B] = (newBuilder[A, B](ord) ++= elems).result
+
+  class SortedMapBuilderFactory[A, B](implicit ord: Ordering[A]) extends BuilderFactory[(A, B), CC[A, B], Coll] {
+    def apply(from: Coll) = newBuilder[A, B](ord)
+  }
+}