fixed bug657.

1 files changed, 51 insertions, 0 deletions

diff --git a/test/files/run/bug657.scala b/test/files/run/bug657.scala
new file mode 100644
index 0000000000..931f62b1a5
--- /dev/null
+++ b/test/files/run/bug657.scala
@@ -0,0 +1,51 @@
+abstract class BaseList {
+  type Node <: NodeImpl;
+  implicit def convertNode(ni : NodeImpl) = ni.asInstanceOf[Node];
+  abstract class NodeImpl;
+}
+abstract class LinkedList extends BaseList {
+  type Node <: NodeImpl;
+  trait NodeImpl extends super.NodeImpl;
+}
+trait OffsetList extends LinkedList {
+  type Node <: NodeImpl;
+  trait NodeImpl extends super.NodeImpl;
+}
+
+trait PriorityTree extends BaseList {
+  type Node <: NodeImpl;
+  trait NodeImpl extends super.NodeImpl {
+    def chop : Node = this;
+  }
+}
+
+trait PrecedenceParser  extends LinkedList with PriorityTree {
+  type Node <: NodeImpl;
+  trait NodeImpl extends super[LinkedList].NodeImpl with super[PriorityTree].NodeImpl;
+}
+
+trait Matcher extends PrecedenceParser {
+  type Node <: NodeImpl;
+  trait NodeImpl extends super.NodeImpl;
+
+  type Matchable <: Node with MatchableImpl;
+  implicit def convertMatchable(m : MatchableImpl) = m.asInstanceOf[Matchable];
+  trait MatchableImpl extends NodeImpl {
+    override def chop : Node = {
+      Console.println("passed"); super.chop;
+    }
+  }
+}
+
+class Test1 extends OffsetList with Matcher {
+  type Node = NodeImpl;
+  trait NodeImpl extends super[OffsetList].NodeImpl with super[Matcher].NodeImpl;
+  class MatchableImpl extends super.MatchableImpl with NodeImpl;
+  type Matchable = MatchableImpl;
+}
+
+object Test extends Application {
+  val test = new Test1;
+  val m = new test.MatchableImpl;
+  m.chop;
+}