Merge pull request #1 from haskell/ghc-head

Ghc head

1 files changed, 42 insertions, 0 deletions

diff --git a/hypsrc-test/src/Types.hs b/hypsrc-test/src/Types.hs
new file mode 100644
index 00000000..b63a825b
--- /dev/null
+++ b/hypsrc-test/src/Types.hs
@@ -0,0 +1,42 @@
+{-# LANGUAGE TypeFamilies #-}
+
+
+module Types where
+
+
+data Quux = Bar | Baz
+
+newtype Foo = Foo ()
+
+type FooQuux = (Foo, Quux)
+type QuuxFoo = (Quux, Foo)
+
+
+data family Norf a b
+
+data instance Norf Foo Quux = NFQ Foo Quux
+data instance Norf Quux Foo = NQF Quux Foo
+
+
+type family Norf' a b
+
+type instance Norf' Foo Quux = (Foo, Quux)
+type instance Norf' Quux Foo = (Quux, Foo)
+
+
+norf1 :: Norf Foo Quux -> Int
+norf1 (NFQ (Foo ()) Bar) = 0
+norf1 (NFQ (Foo ()) Baz) = 1
+
+norf2 :: Norf Quux Foo -> Int
+norf2 (NQF Bar (Foo ())) = 0
+norf2 (NQF Baz (Foo ())) = 1
+
+
+norf1' :: Norf' Foo Quux -> Int
+norf1' (Foo (), Bar) = 0
+norf1' (Foo (), Baz) = 1
+
+norf2' :: Norf' Quux Foo -> Int
+norf2' (Bar, Foo ()) = 0
+norf2' (Baz, Foo ()) = 1