Data.Serialize.Put

cereal-0.4.1.0: A binary serialization library

Copyright | Lennart Kolmodin, Galois Inc. 2009
License | BSD3-style (see LICENSE)
Maintainer | Trevor Elliott <trevor@galois.com>
Stability | Portability :
Safe Haskell | None
Language | Haskell98

Data.Serialize.Put

Contents

- The Put type
- Flushing the implicit parse state
- Primitives
- Big-endian primitives
- Little-endian primitives
- Host-endian, unaligned writes
- Containers

Description

The Put monad. A monad for efficiently constructing bytestrings.

Synopsis

- type Put = PutM ()
- newtype PutM a = Put {
  - unPut :: PairS a
  }
- type Putter a = a -> Put
- runPut :: Put -> ByteString
- runPutM :: PutM a -> (a, ByteString)
- runPutLazy :: Put -> ByteString
- runPutMLazy :: PutM a -> (a, ByteString)
- putBuilder :: Putter Builder
- execPut :: PutM a -> Builder
- flush :: Put
- putWord8 :: Putter Word8
- putByteString :: Putter ByteString
- putLazyByteString :: Putter ByteString
- putWord16be :: Putter Word16
- putWord32be :: Putter Word32
- putWord64be :: Putter Word64
- putWord16le :: Putter Word16
- putWord32le :: Putter Word32
- putWord64le :: Putter Word64
- putWordhost :: Putter Word
- putWord16host :: Putter Word16
- putWord32host :: Putter Word32
- putWord64host :: Putter Word64
- putTwoOf :: Putter a -> Putter b -> Putter (a, b)
- putListOf :: Putter a -> Putter [a]
- putIArrayOf :: (Ix i, IArray a e) => Putter i -> Putter e -> Putter (a i e)
- putSeqOf :: Putter a -> Putter (Seq a)
- putTreeOf :: Putter a -> Putter (Tree a)
- putMapOf :: Ord k => Putter k -> Putter a -> Putter (Map k a)
- putIntMapOf :: Putter Int -> Putter a -> Putter (IntMap a)
- putSetOf :: Putter a -> Putter (Set a)
- putIntSetOf :: Putter Int -> Putter IntSet
- putMaybeOf :: Putter a -> Putter (Maybe a)
- putEitherOf :: Putter a -> Putter b -> Putter (Either a b)

# The Put type

type Put = PutM ()

Put merely lifts Builder into a Writer monad, applied to ().

newtype PutM a

The PutM type. A Writer monad over the efficient Builder monoid.

Constructors

Put |
Fields unPut :: PairS a

Instances

Monad PutM |
Functor PutM |
Applicative PutM |

type Putter a = a -> Put

runPut :: Put -> ByteString

Run the `Put` monad with a serialiser

runPutM :: PutM a -> (a, ByteString)

Run the `Put` monad with a serialiser and get its result

runPutLazy :: Put -> ByteString

Run the `Put` monad with a serialiser

runPutMLazy :: PutM a -> (a, ByteString)

Run the `Put` monad with a serialiser

putBuilder :: Putter Builder

execPut :: PutM a -> Builder

Run the `Put` monad

# Flushing the implicit parse state

flush :: Put

Pop the ByteString we have constructed so far, if any, yielding a new chunk in the result ByteString.

# Primitives

putWord8 :: Putter Word8

Efficiently write a byte into the output buffer

putByteString :: Putter ByteString

An efficient primitive to write a strict ByteString into the output buffer. It flushes the current buffer, and writes the argument into a new chunk.

putLazyByteString :: Putter ByteString

Write a lazy ByteString efficiently, simply appending the lazy ByteString chunks to the output buffer

# Big-endian primitives

putWord16be :: Putter Word16

Write a Word16 in big endian format

putWord32be :: Putter Word32

Write a Word32 in big endian format

putWord64be :: Putter Word64

Write a Word64 in big endian format

# Little-endian primitives

putWord16le :: Putter Word16

Write a Word16 in little endian format

putWord32le :: Putter Word32

Write a Word32 in little endian format

putWord64le :: Putter Word64

Write a Word64 in little endian format

# Host-endian, unaligned writes

putWordhost :: Putter Word

O(1). Write a single native machine word. The word is written in host order, host endian form, for the machine you're on. On a 64 bit machine the Word is an 8 byte value, on a 32 bit machine, 4 bytes. Values written this way are not portable to different endian or word sized machines, without conversion.

putWord16host :: Putter Word16

O(1). Write a Word16 in native host order and host endianness. For portability issues see `putWordhost`.

putWord32host :: Putter Word32

O(1). Write a Word32 in native host order and host endianness. For portability issues see `putWordhost`.

putWord64host :: Putter Word64

O(1). Write a Word64 in native host order On a 32 bit machine we write two host order Word32s, in big endian form. For portability issues see `putWordhost`.

# Containers

putTwoOf :: Putter a -> Putter b -> Putter (a, b)

putListOf :: Putter a -> Putter [a]

putIArrayOf :: (Ix i, IArray a e) => Putter i -> Putter e -> Putter (a i e)

putSeqOf :: Putter a -> Putter (Seq a)

putTreeOf :: Putter a -> Putter (Tree a)

putMapOf :: Ord k => Putter k -> Putter a -> Putter (Map k a)

putIntMapOf :: Putter Int -> Putter a -> Putter (IntMap a)

putSetOf :: Putter a -> Putter (Set a)

putIntSetOf :: Putter Int -> Putter IntSet

putMaybeOf :: Putter a -> Putter (Maybe a)

putEitherOf :: Putter a -> Putter b -> Putter (Either a b)