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{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE DeriveFunctor #-}
{-# LANGUAGE DefaultSignatures #-}
{-# LANGUAGE StandaloneDeriving #-}
{-# LANGUAGE UndecidableInstances #-}
-- DeriveAnyClass not enabled
module T5462No1 where
import GHC.Generics hiding (C, C1, D)
import GFunctor
class C1 a where
c1 :: a -> Int
class C2 a where
c2 :: a -> Int
c2 _ = 0
newtype F a = F1 [a]
deriving (Show, Eq, Generic, Generic1, GFunctor)
data G = G1 deriving (C1)
data H = H1 deriving (C2)
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