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{-# LANGUAGE Haskell2010 #-}
{-# LANGUAGE ExplicitForAll #-}
{-# LANGUAGE TypeFamilies #-}
module ExplicitForAllFams4 where
type family J a
type instance forall a b. J [a] = Float
type instance forall b. J _ = Maybe b
data family K a
data instance forall a b. K (a, Bool) = K5 Float
data instance forall b. K _ = K6 (Maybe b)
data family L a
newtype instance forall a b. L (a, Bool) = L5 { unL5 :: Float }
newtype instance forall b. L _ = L6 { unL56:: Maybe b }
class C a where
type CT a b
data CD a b
instance C Int where
type forall a b. CT [a] (a,a) = Float
data forall a b. CD [a] (a,a) = CD5 Float
instance C Bool where
type forall b. CT _ _ = Maybe b
data forall b. CD _ _ = CD6 (Maybe b)
instance C Double where
type forall b. CT _ _ = Bool
data forall b. CD _ _ = CD7
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