1 files changed, 25 insertions, 0 deletions
diff --git a/html-test/src/PromotedTypes.hs b/html-test/src/PromotedTypes.hs
new file mode 100644
index 00000000..ae3ad375
--- /dev/null
+++ b/html-test/src/PromotedTypes.hs
@@ -0,0 +1,25 @@
+{-# LANGUAGE DataKinds #-}
+{-# LANGUAGE GADTs #-}
+{-# LANGUAGE KindSignatures #-}
+{-# LANGUAGE TypeOperators #-}
+
+
+module PromotedTypes where
+
+
+data RevList a = RNil | RevList a :> a
+
+
+data Pattern :: [*] -> * where
+  Nil :: Pattern '[]
+  Cons :: Maybe h -> Pattern t -> Pattern (h ': t)
+
+
+-- Unlike (:), (:>) does not have to be quoted on type level.
+data RevPattern :: RevList * -> * where
+    RevNil :: RevPattern RNil
+    RevCons :: Maybe h -> RevPattern t -> RevPattern (t :> h)
+
+
+data Tuple :: (*, *) -> * where
+    Tuple :: a -> b -> Tuple '(a, b)