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{-# LANGUAGE CPP #-}
{-# LANGUAGE EmptyDataDecls #-}
{-# LANGUAGE GADTs #-}
{-# LANGUAGE MagicHash #-}
{-# LANGUAGE StandaloneDeriving #-}
{-# LANGUAGE TemplateHaskell #-}
{-# LANGUAGE TypeFamilies #-}
#if __GLASGOW_HASKELL__ >= 706
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveGeneric #-}
#endif
module GenericsTypes where
#if !(MIN_VERSION_base(4,8,0))
import Control.Applicative
#endif
import Data.Functor.Classes
import Data.Functor.Classes.Generic
#if __GLASGOW_HASKELL__ >= 706
import GHC.Generics (Generic1)
#endif
import GHC.Exts
import Test.QuickCheck (Arbitrary(..), oneof)
#if __GLASGOW_HASKELL__ < 804
import Data.Eq.Deriving (deriveEq)
import Data.Ord.Deriving (deriveOrd)
import Generics.Deriving.TH (deriveAll1)
import Text.Show.Deriving (deriveShow)
#endif
#if __GLASGOW_HASKELL__ < 806
import Text.Read.Deriving (deriveRead)
#endif
data TestParam a = TestParam a (Maybe a) (Maybe (Maybe a))
deriving (Eq, Ord, Read, Show)
instance Arbitrary a => Arbitrary (TestParam a) where
arbitrary = TestParam <$> arbitrary <*> arbitrary <*> arbitrary
data Prim a = Prim a Char# Double# Int# Float# Word#
deriving (Eq, Ord, Show)
instance Arbitrary a => Arbitrary (Prim a) where
arbitrary = do
a <- arbitrary
C# c <- arbitrary
D# d <- arbitrary
I# i <- arbitrary
F# f <- arbitrary
W# w <- arbitrary
return $ Prim a c d i f w
data T# a = MkT1# a
| MkT2# { getT2# :: a, (##) :: a }
| a `MkT3#` a
deriving (Eq, Ord, Show)
instance Arbitrary a => Arbitrary (T# a) where
arbitrary = oneof [ MkT1# <$> arbitrary
, MkT2# <$> arbitrary <*> arbitrary
, MkT3# <$> arbitrary <*> arbitrary
]
infixl 3 :!:
infix 4 :@:
infixr 5 `Backticks`
infixr 6 `FakeInfix`
data Infix a = (:!:) a Double
| a :@: ()
| a `Backticks` Bool
| FakeInfix a Int
deriving (Eq, Ord, Read, Show)
instance Arbitrary a => Arbitrary (Infix a) where
arbitrary = oneof [ (:!:) <$> arbitrary <*> arbitrary
, (:@:) <$> arbitrary <*> arbitrary
, Backticks <$> arbitrary <*> arbitrary
, FakeInfix <$> arbitrary <*> arbitrary
]
infixr 1 :., :..., :....
data GADT a where
(:.) :: b -> () -> GADT b
(:..) :: c -> Bool -> GADT c
(:...) :: d -> Double -> Int -> GADT d
(:....) :: { gadt1 :: e, gadt2 :: Char } -> GADT e
deriving (Eq, Ord, Read, Show)
instance Arbitrary a => Arbitrary (GADT a) where
arbitrary = oneof [ (:.) <$> arbitrary <*> arbitrary
, (:..) <$> arbitrary <*> arbitrary
, (:...) <$> arbitrary <*> arbitrary <*> arbitrary
, (:....) <$> arbitrary <*> arbitrary
]
infixl 4 :%:
data Record a = Prefix { rec1 :: Int, rec2 :: a }
| Int :%: a
deriving (Eq, Ord, Read, Show)
instance Arbitrary a => Arbitrary (Record a) where
arbitrary = oneof [ Prefix <$> arbitrary <*> arbitrary
, (:%:) <$> arbitrary <*> arbitrary
]
data Empty a
instance Arbitrary (Empty a) where
arbitrary = return $ error "Arbitrary Empty"
#if __GLASGOW_HASKELL__ == 700
-- Workaround for GHC Trac #5041
$(deriveRead ''T#)
#elif __GLASGOW_HASKELL__ == 804
-- Workaround for GHC Trac #14918
$(deriveRead ''T#)
#else
deriving instance Read a => Read (T# a)
#endif
#if __GLASGOW_HASKELL__ >= 804
deriving instance Eq (Empty a)
deriving instance Ord (Empty a)
deriving instance Read (Empty a)
deriving instance Show (Empty a)
deriving instance Generic1 Empty
#else
$(deriveEq ''Empty)
$(deriveOrd ''Empty)
$(deriveRead ''Empty)
$(deriveShow ''Empty)
$(deriveAll1 ''Empty)
#endif
#if __GLASGOW_HASKELL__ >= 706
deriving instance Generic1 TestParam
deriving instance Generic1 T#
deriving instance Generic1 Infix
deriving instance Generic1 GADT
deriving instance Generic1 Record
#else
$(deriveAll1 ''TestParam)
$(deriveAll1 ''T#)
$(deriveAll1 ''Infix)
$(deriveAll1 ''GADT)
$(deriveAll1 ''Record)
#endif
#if __GLASGOW_HASKELL__ >= 800
deriving instance Generic1 Prim
#else
$(deriveAll1 ''Prim)
#endif
#define CLASS1_INSTANCE(class,type,method,impl) \
instance class type where { method = impl }; \
#if MIN_VERSION_transformers(0,4,0) && !(MIN_VERSION_transformers(0,5,0))
# define TRANSFORMERS_FOUR 1
#endif
#if defined(TRANSFORMERS_FOUR)
# define EQ1_INSTANCE(type) CLASS1_INSTANCE(Eq1,type,eq1,eq1Default)
# define ORD1_INSTANCE(type) CLASS1_INSTANCE(Ord1,type,compare1,compare1Default)
# define READ1_INSTANCE(type) CLASS1_INSTANCE(Read1,type,readsPrec1,readsPrec1Default)
# define SHOW1_INSTANCE(type) CLASS1_INSTANCE(Show1,type,showsPrec1,showsPrec1Default)
#else
# define EQ1_INSTANCE(type) CLASS1_INSTANCE(Eq1,type,liftEq,liftEqDefault)
# define ORD1_INSTANCE(type) CLASS1_INSTANCE(Ord1,type,liftCompare,liftCompareDefault)
# define READ1_INSTANCE(type) CLASS1_INSTANCE(Read1,type,liftReadsPrec,liftReadsPrecDefault)
# define SHOW1_INSTANCE(type) CLASS1_INSTANCE(Show1,type,liftShowsPrec,liftShowsPrecDefault)
#endif
#define CLASS1_INSTANCES(type) \
EQ1_INSTANCE(type) \
ORD1_INSTANCE(type) \
READ1_INSTANCE(type) \
SHOW1_INSTANCE(type) \
CLASS1_INSTANCES(TestParam)
CLASS1_INSTANCES(T#)
CLASS1_INSTANCES(Infix)
CLASS1_INSTANCES(GADT)
CLASS1_INSTANCES(Record)
CLASS1_INSTANCES(Empty)
EQ1_INSTANCE(Prim)
ORD1_INSTANCE(Prim)
SHOW1_INSTANCE(Prim)
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