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Diffstat (limited to 'testsuite/tests/th/T15362.hs')
| -rw-r--r-- | testsuite/tests/th/T15362.hs | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/testsuite/tests/th/T15362.hs b/testsuite/tests/th/T15362.hs new file mode 100644 index 0000000000..183f887252 --- /dev/null +++ b/testsuite/tests/th/T15362.hs @@ -0,0 +1,9 @@ +{-# LANGUAGE TemplateHaskell, TypeOperators, DataKinds #-} + +module T15362 where + +data Nat = Zero | Succ Nat + +$( [d| type family a + b where + Maybe Zero b = b + Succ a + b = Succ (a + b) |] ) |