1 files changed, 10 insertions, 0 deletions
diff --git a/test/files/run/t3798.scala b/test/files/run/t3798.scala
new file mode 100644
index 0000000000..3ede57bee7
--- /dev/null
+++ b/test/files/run/t3798.scala
@@ -0,0 +1,10 @@
+object Test {
+  def main(args: Array[String]) {
+    val seq: MySeq[Undefined] = new MySeq[Floats](new Array[Float](10))
+    println(10 == seq.array.length)
+  }
+}
+
+sealed trait Undefined { type ArrayType <: Array[_] }
+sealed trait Floats extends Undefined { type ArrayType = Array[Float] }
+class MySeq[+T <: Undefined](val array: T#ArrayType)