diff options
Diffstat (limited to 'testsuite/tests/indexed-types/should_fail/T21896.hs')
| -rw-r--r-- | testsuite/tests/indexed-types/should_fail/T21896.hs | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/testsuite/tests/indexed-types/should_fail/T21896.hs b/testsuite/tests/indexed-types/should_fail/T21896.hs new file mode 100644 index 0000000000..64ce18d023 --- /dev/null +++ b/testsuite/tests/indexed-types/should_fail/T21896.hs @@ -0,0 +1,9 @@ +{-# LANGUAGE NoImplicitPrelude #-} +{-# LANGUAGE DataKinds, TypeFamilies, TypeFamilyDependencies, PolyKinds #-} +module Bug where + +data T = Foo | Bar + +type family F (ns :: T) (ret :: k) = (r :: k) | r -> ret where + F Foo r = r + F Bar r = r |