Merge pull request #1958 from dotty-staging/add-enum

Add "enum" construct

1 files changed, 14 insertions, 0 deletions

diff --git a/tests/pos/enum-List-control.scala b/tests/pos/enum-List-control.scala
new file mode 100644
index 000000000..d9df176d1
--- /dev/null
+++ b/tests/pos/enum-List-control.scala
@@ -0,0 +1,14 @@
+abstract sealed class List[T] extends Enum
+object List {
+  final case class Cons[T](x: T, xs: List[T]) extends List[T] {
+    def enumTag = 0
+  }
+  final case class Nil[T]() extends List[T] {
+    def enumTag = 1
+  }
+}
+object Test {
+  import List._
+  val xs = Cons(1, Cons(2, Cons(3, Nil())))
+  def main(args: Array[String]) = println(xs)
+}