1 files changed, 10 insertions, 0 deletions
diff --git a/IterableClass.dcl b/IterableClass.dcl
new file mode 100644
index 0000000..729cd68
--- /dev/null
+++ b/IterableClass.dcl
@@ -0,0 +1,10 @@
+definition module IterableClass
+
+class step a :: a -> a
+class rewind a :: a -> a
+
+stepn :: Int a -> a | step a
+rewindn :: Int a -> a | rewind a
+
+stepOrRewindn :: Int a -> a | step, rewind a
+