diff options
Diffstat (limited to 'users/grfn/xanthous/src/Data/Aeson')
| -rw-r--r-- | users/grfn/xanthous/src/Data/Aeson/Generic/DerivingVia.hs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/users/grfn/xanthous/src/Data/Aeson/Generic/DerivingVia.hs b/users/grfn/xanthous/src/Data/Aeson/Generic/DerivingVia.hs index 34f2a9403892..e89fcd621157 100644 --- a/users/grfn/xanthous/src/Data/Aeson/Generic/DerivingVia.hs +++ b/users/grfn/xanthous/src/Data/Aeson/Generic/DerivingVia.hs @@ -89,7 +89,8 @@ type TagSingleConstructors = 'TagSingleConstructors class Demotable (a :: k) where demote :: proxy a -> Demoted k -type family All (p :: Type -> Constraint) (xs :: [k]) :: Constraint where +type All :: (Type -> Constraint) -> [Type] -> Constraint +type family All p xs where All p '[] = () All p (x ': xs) = (p x, All p xs) |