diff options
Diffstat (limited to 'testsuite/tests/indexed-types/should_fail/T3440.hs')
| -rw-r--r-- | testsuite/tests/indexed-types/should_fail/T3440.hs | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/testsuite/tests/indexed-types/should_fail/T3440.hs b/testsuite/tests/indexed-types/should_fail/T3440.hs new file mode 100644 index 0000000000..0bf1544009 --- /dev/null +++ b/testsuite/tests/indexed-types/should_fail/T3440.hs @@ -0,0 +1,11 @@ +{-# LANGUAGE TypeFamilies, GADTs #-} + +module T3440 where + +type family Fam a :: * + +data GADT :: * -> * where + GADT :: a -> Fam a -> GADT (Fam a) + +unwrap :: GADT (Fam a) -> (a, Fam a) +unwrap (GADT x y) = (x, y) |