binary-state (empty) → 0.1
raw patch · 4 files changed
+292/−0 lines, 4 filesdep +basedep +binarydep +bytestringsetup-changed
Dependencies added: base, binary, bytestring, containers, haskell98, mtl
Files
- Data/BinaryState.hs +103/−0
- LICENSE +165/−0
- Setup.hs +2/−0
- binary-state.cabal +22/−0
+ Data/BinaryState.hs view
@@ -0,0 +1,103 @@+{-# LANGUAGE MultiParamTypeClasses, FlexibleInstances #-}+module Data.BinaryState where++import Control.Monad+import qualified Control.Monad.State as State+import qualified Data.Binary as Binary+import qualified Data.Binary.Put as Put+import qualified Data.Binary.Get as Get+import qualified Data.ByteString.Lazy as B+import Data.Word+import Data.Int++type PutState s a = State.StateT s Put.PutM a+type GetState s a = State.StateT s Binary.Get a++class BinaryState s a where+ put :: a -> PutState s ()+ get :: GetState s a++instance (Binary.Binary a) => BinaryState () a where+ put x = putZ x+ get = getZ++putZ :: (Binary.Binary a) => a -> PutState s ()+putZ x = State.lift (Binary.put x)++getZ :: (Binary.Binary a) => GetState s a+getZ = State.lift Binary.get++------------------------------------------------++encodeS :: (BinaryState s a) => s -> a -> B.ByteString+encodeS s a = Put.runPut $ State.evalStateT (put a) s++decodeS :: (BinaryState s a) => s -> B.ByteString -> a+decodeS s str = Get.runGet (State.evalStateT get s) str++decodeWith :: GetState s a -> s -> B.ByteString -> a+decodeWith getter s str =+ let (x,_,_) = Get.runGetState (State.evalStateT getter s) str 0+ in x++encodeFile :: BinaryState s a => FilePath -> s -> a -> IO ()+encodeFile f s v = B.writeFile f (encodeS s v)++decodeFile :: BinaryState s a => FilePath -> s -> IO a+decodeFile f s = liftM (decodeS s) (B.readFile f)++decodeFile' :: BinaryState s a => FilePath -> s -> IO (a, s)+decodeFile' path s = do+ str <- B.readFile path+ let getter = State.runStateT get s+ return $ Get.runGet getter str++------------------------------------------------++getByte :: GetState s Word8+getByte = State.lift Binary.getWord8++liftOffset :: (Binary.Binary a) => Integer -> (a -> Binary.Put) -> a -> PutState Integer ()+liftOffset d fn x = State.modify (+d) >> State.lift (fn x)++putByte :: Word8 -> PutState Integer ()+putByte x = liftOffset 1 Put.putWord8 x++isEmpty :: GetState s Bool+isEmpty = State.lift Get.isEmpty++skip :: Int -> GetState s ()+skip n = State.lift (Get.skip n)++getOffset :: PutState Integer Integer+getOffset = State.get++bytesRead :: GetState s Int64+bytesRead = State.lift Get.bytesRead++--------------------------------------------------++instance BinaryState Integer Word8 where+ put x = putByte x+ get = getZ++instance BinaryState Integer Word16 where+ put x = liftOffset 2 Binary.put x+ get = getZ++instance BinaryState Integer Word32 where+ put x = liftOffset 4 Binary.put x+ get = getZ++instance (BinaryState s a, BinaryState s b) => BinaryState s (a,b) where+ put (x,y) = put x >> put y+ get = do+ x <- get+ y <- get+ return (x,y)++--------------------------------------------------++-- instance (Binary.Binary a, Storable a) => BinaryState Integer a where+-- put x = liftOffset (fromIntegral $ sizeOf x) Binary.put x+-- get = getZ
+ LICENSE view
@@ -0,0 +1,165 @@+ GNU LESSER GENERAL PUBLIC LICENSE+ Version 3, 29 June 2007++ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>+ Everyone is permitted to copy and distribute verbatim copies+ of this license document, but changing it is not allowed.+++ This version of the GNU Lesser General Public License incorporates+the terms and conditions of version 3 of the GNU General Public+License, supplemented by the additional permissions listed below.++ 0. 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+ Setup.hs view
@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain
+ binary-state.cabal view
@@ -0,0 +1,22 @@+Name: binary-state+Version: 0.1+Cabal-Version: >= 1.6+License: BSD3+License-File: LICENSE+Author: Ilya V. Portnov+Maintainer: portnov84@rambler.ru+Synopsis: Simple wrapper around Data.Binary, which adds StateT to Get/Put monads.+Category: Jvm+Build-Type: Simple+Description: This package declares BinaryState type class, which is similar to+ Data.Binary.Binary, but Get/Put monads can track state.++library+ Exposed-Modules: Data.BinaryState++ Build-Depends: base >= 3 && <= 5, haskell98, containers, binary,+ mtl > 1, bytestring++ ghc-options: -fwarn-unused-imports++