diff options
Diffstat (limited to 'testsuite/tests/indexed-types/should_compile/GivenCheckSwap.hs')
| -rw-r--r-- | testsuite/tests/indexed-types/should_compile/GivenCheckSwap.hs | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/testsuite/tests/indexed-types/should_compile/GivenCheckSwap.hs b/testsuite/tests/indexed-types/should_compile/GivenCheckSwap.hs new file mode 100644 index 0000000000..8d053f312a --- /dev/null +++ b/testsuite/tests/indexed-types/should_compile/GivenCheckSwap.hs @@ -0,0 +1,12 @@ +{-# LANGUAGE TypeFamilies #-} + +module GivenCheckSwapMain where + +type family S x + +f :: a -> S a +f = undefined + +g :: Char ~ S a => a -> Char +g y | False = f y + | otherwise = 'a' |