1 files changed, 29 insertions, 0 deletions

diff --git a/src/library/scala/collection/mutable/LinkedHashSet.scala b/src/library/scala/collection/mutable/LinkedHashSet.scala
new file mode 100644
index 0000000000..1d63183aab
--- /dev/null
+++ b/src/library/scala/collection/mutable/LinkedHashSet.scala
@@ -0,0 +1,29 @@
+package scala.collection.mutable;
+
+class LinkedHashSet[A](private val set0 : java.util.LinkedHashSet) extends Set[A] {
+  def this() = this(new java.util.LinkedHashSet);
+  private def this(set1 : java.util.Set, b : Boolean) = this(new java.util.LinkedHashSet(set1));
+
+  def contains(elem: A): Boolean = set0.contains(elem);
+
+  def +=(elem: A): Unit = set0.add(elem);
+
+  def ++=(set : LinkedHashSet[A]) = set0.addAll(set.set0);
+  def --=(set : LinkedHashSet[A]) = set0.removeAll(set.set0);
+
+  def -=(elem: A): Unit = set0.remove(elem);
+  def elements = new Iterator[A] {
+    val i = set0.iterator;
+    def hasNext = i.hasNext();
+    def next = i.next().asInstanceOf[A];
+  }
+  def clear = set0.clear();
+  def size = set0.size();
+  override def toString() = set0.toString();
+
+  override def clone(): Set[A] = {
+    val res = new LinkedHashSet[A](set0,true);
+    res ++= this;
+    res
+  }
+}