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Binary.chs
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Binary.chs
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% Additional stuff for use of Binary
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%[50 hs module {%{EH}Base.Binary}
%%]
%%[50 import(UHC.Util.Binary) export (module UHC.Util.Binary)
%%]
%%[50 import(Data.Typeable(Typeable,Typeable1), Data.Generics.Aliases) export(module Data.Typeable)
%%]
%%[5020 import(Data.Generics(Data, constrIndex, toConstr, gmapQ, indexConstr, dataTypeOf, fromConstrM))
%%]
%%[50 import(Data.Generics(Data)) export(module Data.Generics)
%%]
%%[50 import(Data.Word, Data.Array, Control.Monad)
%%]
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% Enum
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%[50 export(putEnum, getEnum)
putEnum :: Enum x => x -> Put
putEnum x = put (fromEnum x)
getEnum :: Enum x => Get x
getEnum = do n <- get
return (toEnum n)
%%]
%%[50 export(putEnum8, getEnum8)
putEnum8 :: Enum x => x -> Put
putEnum8 x = putWord8 (fromIntegral $ fromEnum x)
getEnum8 :: Enum x => Get x
getEnum8 = do n <- getWord8
return (toEnum $ fromIntegral n)
%%]
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% List abstraction
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%[50 export(putList, getList)
putList :: (Binary a, Binary b) => (x -> Bool) -> (x -> (a,b)) -> x -> Put
putList isNil getCons x | isNil x = putWord8 0
| otherwise = let (a,b) = getCons x in putWord8 1 >> put a >> put b
getList :: (Binary a, Binary b) => x -> (a -> b -> x) -> Get x
getList nil cons
= do tag <- getWord8
case tag of
0 -> return nil
1 -> liftM2 cons get get
%%]
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% Utils
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%[50 export(liftM6,liftM7,liftM8,liftM9)
liftM6 :: (Monad m) => (a1 -> a2 -> a3 -> a4 -> a5 -> a6 -> r)
-> m a1 -> m a2 -> m a3 -> m a4 -> m a5 -> m a6 -> m r
liftM6 f m1 m2 m3 m4 m5 m6
= do { x1 <- m1; x2 <- m2; x3 <- m3; x4 <- m4; x5 <- m5; x6 <- m6
; return (f x1 x2 x3 x4 x5 x6)
}
liftM7 :: (Monad m) => (a1 -> a2 -> a3 -> a4 -> a5 -> a6 -> a7 -> r)
-> m a1 -> m a2 -> m a3 -> m a4 -> m a5 -> m a6 -> m a7 -> m r
liftM7 f m1 m2 m3 m4 m5 m6 m7
= do { x1 <- m1; x2 <- m2; x3 <- m3; x4 <- m4; x5 <- m5; x6 <- m6; x7 <- m7
; return (f x1 x2 x3 x4 x5 x6 x7)
}
liftM8 :: (Monad m) => (a1 -> a2 -> a3 -> a4 -> a5 -> a6 -> a7 -> a8 -> r)
-> m a1 -> m a2 -> m a3 -> m a4 -> m a5 -> m a6 -> m a7 -> m a8 -> m r
liftM8 f m1 m2 m3 m4 m5 m6 m7 m8
= do { x1 <- m1; x2 <- m2; x3 <- m3; x4 <- m4; x5 <- m5; x6 <- m6; x7 <- m7; x8 <- m8
; return (f x1 x2 x3 x4 x5 x6 x7 x8)
}
liftM9 :: (Monad m) => (a1 -> a2 -> a3 -> a4 -> a5 -> a6 -> a7 -> a8 -> a9 -> r)
-> m a1 -> m a2 -> m a3 -> m a4 -> m a5 -> m a6 -> m a7 -> m a8 -> m a9 -> m r
liftM9 f m1 m2 m3 m4 m5 m6 m7 m8 m9
= do { x1 <- m1; x2 <- m2; x3 <- m3; x4 <- m4; x5 <- m5; x6 <- m6; x7 <- m7; x8 <- m8; x9 <- m9
; return (f x1 x2 x3 x4 x5 x6 x7 x8 x9)
}
%%]
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% Generic put & get
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%[50
%%]
instance (Data a, Typeable a) => Binary a where
put = gput
get = gget
%%[50
%%]
-- | Generic put.
gput :: Data a => a -> Put
gput = general
`extQ` char
`extQ` int
`extQ` integer
`extQ` float
`extQ` double
`extQ` string
-- `extQ` arr
-- `extQ` array
where
-- Generic case
general :: Data a => a -> Put
general x = let n :: Word8
n = fromIntegral (constrIndex (toConstr x))
in foldr1 (>>) (putWord8 n : gmapQ gput x)
-- Base cases
char :: Char -> Put
char = put
int :: Int -> Put
int = put
integer :: Integer -> Put
integer = put
float :: Float -> Put
float = put
double :: Double -> Put
double = put
string :: String -> Put
string = put
-- array :: (Ix a, Data a, Data b) => Array a b -> Put
-- array a = foldr1 (>>) (gmapQ gput (bounds a)) >> foldr1 (>>) (gmapQ gput (elems a))
-- arr :: (Data e) => Array Int e -> Put
-- arr a = gput (bounds a) >> gput (elems a)
-- | Generic get.
gget :: forall a. Data a => Get a
gget = general
`extR` char
`extR` int
`extR` integer
`extR` float
`extR` double
`extR` string where
-- Generic case
general :: forall a. Data a => Get a
general = do n <- getWord8
let f :: Get a -> a -- just to get the type
f = error "impossible"
i = indexConstr (dataTypeOf (f general)) (fromIntegral n)
fromConstrM gget i
-- Base cases
char :: Get Char
char = get
int :: Get Int
int = get
integer :: Get Integer
integer = get
float :: Get Float
float = get
double :: Get Double
double = get
string :: Get String
string = get
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% Instances: Binary
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%[50
%%]
instance Enum a => Binary a where
put e = put (fromEnum e)
get = do n <- get
return (toEnum n)