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{-# LANGUAGE DeriveGeneric #-}
module Main where
import GHC.Generics hiding (C, D)
import GShow
-- We should be able to generate a generic representation for these types
data D a = D0 | D1 { d11 :: a, d12 :: (D a) } deriving Generic
-- Example values
d0 :: D Char
d0 = D0
d1 = D1 (Just 'p') D0
d2 :: D (Int,Float)
d2 = D1 (3,0.14) D0
-- Generic instances
instance (GShow a) => GShow (D a)
-- Tests
main = mapM_ putStrLn [gshow d0, gshow d1, gshow d2]
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