pipes-cereal (empty) → 0.1.0

raw patch · 4 files changed

+104/−0 lines, 4 filesdep +basedep +bytestringdep +cerealsetup-changed

Dependencies added: base, bytestring, cereal, mtl, pipes, pipes-bytestring, pipes-parse

Files

LICENSE +30/−0
Setup.hs +2/−0
pipes-cereal.cabal +33/−0
src/Pipes/Cereal.hs +39/−0

+ LICENSE view

@@ -0,0 +1,30 @@+Copyright (c) 2015, Ian Milligan++All rights reserved.++Redistribution and use in source and binary forms, with or without+modification, are permitted provided that the following conditions are met:++    * Redistributions of source code must retain the above copyright+      notice, this list of conditions and the following disclaimer.++    * Redistributions in binary form must reproduce the above+      copyright notice, this list of conditions and the following+      disclaimer in the documentation and/or other materials provided+      with the distribution.++    * Neither the name of Ian Milligan nor the names of other+      contributors may be used to endorse or promote products derived+      from this software without specific prior written permission.++THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+ Setup.hs view

@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain

+ pipes-cereal.cabal view

@@ -0,0 +1,33 @@+-- Initial pipes-cereal.cabal generated by cabal init.  For further +-- documentation, see http://haskell.org/cabal/users-guide/++name:                pipes-cereal+version:             0.1.0+synopsis:            Encode and decode binary streams using the pipes and cereal libraries.+-- description:         +license:             BSD3+license-file:        LICENSE+author:              Ian Milligan+maintainer:          ianmllgn@gmail.com+category:            Pipes+build-type:          Simple+-- extra-source-files:  +cabal-version:       >=1.10++source-repository head+    Type: git+    Location: https://github.com/ian-mi/pipes-cereal++library+  exposed-modules:     Pipes.Cereal+  -- other-modules:       +  other-extensions:    Rank2Types+  build-depends:       base >=4.7 && <5+                     , bytestring >= 0.10+                     , cereal >=0.4 && <0.5+                     , mtl >= 2 && < 3+                     , pipes >=4 && <5+                     , pipes-bytestring >=2 && <3+                     , pipes-parse >= 3 && <4+  hs-source-dirs:      src+  default-language:    Haskell2010

+ src/Pipes/Cereal.hs view

@@ -0,0 +1,39 @@+{-# LANGUAGE FlexibleContexts #-}+{-# LANGUAGE Rank2Types #-}++module Pipes.Cereal ( encode,+                      encodePut,+                      decode,+                      decodeGet,+                      Put,+                      Get,+                      Serialize ) where++import Control.Monad.Error.Class+import Data.Maybe+import Data.Monoid+import Data.Serialize hiding ( encode, decode )+import Pipes+import Pipes.ByteString+import Pipes.Parse++-- |Encode a value to a byte stream.+encode :: (Serialize a, Monad m) => a -> Producer' ByteString m ()+encode = encodePut . put++-- |Encode an explicit 'Put'.+encodePut :: Monad m => Put -> Producer' ByteString m ()+encodePut = Pipes.ByteString.fromLazy . runPutLazy++-- |Decode a value from a byte stream.+decode :: (Serialize a, Monad m) => Parser ByteString m (Either String a)+decode = decodeGet get++-- |Decode a value using an explicit 'Get'.+decodeGet :: Monad m => Get a -> Parser ByteString m (Either String a)+decodeGet = go . runGetPartial+  where go f = do next <- draw+                  case f (fromMaybe mempty next) of+                   Fail e bs -> unDraw bs >> return (Left e)+                   Partial f' -> go f'+                   Done a bs -> unDraw bs >> return (Right a)