Ptr.Peek

Documentation

data Peek output

Constructors

Peek !Int !(Ptr Word8 -> IO output)

Instances

Functor Peek

Methods

fmap :: (a -> b) -> Peek a -> Peek b

(<$) :: a -> Peek b -> Peek a

Applicative Peek

Methods

pure :: a -> Peek a

(<*>) :: Peek (a -> b) -> Peek a -> Peek b

(*>) :: Peek a -> Peek b -> Peek b

(<*) :: Peek a -> Peek b -> Peek a

word8 :: Peek Word8

beWord16 :: Peek Word16

beWord32 :: Peek Word32

beWord64 :: Peek Word64

bytes :: Int -> Peek ByteString

shortByteString :: Int -> Peek ShortByteString

pokeAndPeek :: PokeAndPeek input output -> Peek output

parse :: Int -> Parse a -> (Int -> a) -> (Text -> a) -> Peek a

Given the length of the data and a specification of its sequential consumption, produces Peek, which results in Just the successfully taken value, or Nothing, if the specified length of data wasn't enough.

parseUnbound :: Int -> ParseUnbound a -> (Int -> a) -> (Text -> a) -> Peek a

Given the length of the data and a specification of its sequential consumption, produces Peek, which results in Just the successfully taken value, or Nothing, if the specified length of data wasn't enough.

peekAmountAndParse :: Peek Int -> Parse a -> (Int -> a) -> (Text -> a) -> Peek (Peek a)

A standard idiom, where a header specifies the length of the body.

Produces Peek, which itself produces another Peek, which is the same as the result of the parse function.