Safe Haskell	None
Language	Haskell2010

Foundation.Conduit

Synopsis

data Conduit input output monad result
data ResourceT m a
newtype ZipSink i m r = ZipSink {
- getZipSink :: Conduit i () m r
}
await :: Conduit i o m ( Maybe i)
awaitForever :: (input -> Conduit input output monad b) -> Conduit input output monad ()
yield :: Monad m => o -> Conduit i o m ()
yields :: ( Monad m, Foldable os, Element os ~ o) => os -> Conduit i o m ()
yieldOr :: o -> m () -> Conduit i o m ()
leftover :: i -> Conduit i o m ()
runConduit :: Monad m => Conduit () () m r -> m r
runConduitPure :: Conduit () () Identity r -> r
runConduitRes :: ( MonadBracket m, MonadIO m) => Conduit () () ( ResourceT m) r -> m r
fuse :: Monad m => Conduit a b m () -> Conduit b c m r -> Conduit a c m r
(.|) :: Monad m => Conduit a b m () -> Conduit b c m r -> Conduit a c m r
sourceFile :: MonadResource m => FilePath -> Conduit i ( UArray Word8 ) m ()
sourceHandle :: MonadIO m => Handle -> Conduit i ( UArray Word8 ) m ()
sinkFile :: MonadResource m => FilePath -> Conduit ( UArray Word8 ) i m ()
sinkHandle :: MonadIO m => Handle -> Conduit ( UArray Word8 ) o m ()
sinkList :: Monad m => Conduit i o m [i]
bracketConduit :: MonadResource m => IO a -> (a -> IO b) -> (a -> Conduit i o m r) -> Conduit i o m r

Documentation

data Conduit input output monad result Source #

A component of a conduit pipeline, which takes a stream of input , produces a stream of output , performs actions in the underlying monad , and produces a value of result when no more output data is available.

Instances

Instances details

MonadTrans ( Conduit i o) Source #
Instance details Defined in Foundation.Conduit.Internal Methods lift :: Monad m => m a -> Conduit i o m a Source #
Monad ( Conduit i o m) Source #
Instance details Defined in Foundation.Conduit.Internal Methods (>>=) :: Conduit i o m a -> (a -> Conduit i o m b) -> Conduit i o m b Source # (>>) :: Conduit i o m a -> Conduit i o m b -> Conduit i o m b Source # return :: a -> Conduit i o m a Source #
Functor ( Conduit i o m) Source #
Instance details Defined in Foundation.Conduit.Internal Methods fmap :: (a -> b) -> Conduit i o m a -> Conduit i o m b Source # (<$) :: a -> Conduit i o m b -> Conduit i o m a Source #
Applicative ( Conduit i o m) Source #
Instance details Defined in Foundation.Conduit.Internal Methods pure :: a -> Conduit i o m a Source # (<>) :: Conduit i o m (a -> b) -> Conduit i o m a -> Conduit i o m b Source # liftA2 :: (a -> b -> c) -> Conduit i o m a -> Conduit i o m b -> Conduit i o m c Source # (>) :: Conduit i o m a -> Conduit i o m b -> Conduit i o m b Source # (<*) :: Conduit i o m a -> Conduit i o m b -> Conduit i o m a Source #
MonadIO m => MonadIO ( Conduit i o m) Source #
Instance details Defined in Foundation.Conduit.Internal Methods liftIO :: IO a -> Conduit i o m a Source #
MonadFailure m => MonadFailure ( Conduit i o m) Source #
Instance details Defined in Foundation.Conduit.Internal Associated Types type Failure ( Conduit i o m) Source # Methods mFail :: Failure ( Conduit i o m) -> Conduit i o m () Source #
MonadCatch m => MonadCatch ( Conduit i o m) Source #
Instance details Defined in Foundation.Conduit.Internal Methods catch :: Exception e => Conduit i o m a -> (e -> Conduit i o m a) -> Conduit i o m a Source #
MonadThrow m => MonadThrow ( Conduit i o m) Source #
Instance details Defined in Foundation.Conduit.Internal Methods throw :: Exception e => e -> Conduit i o m a Source #
type Failure ( Conduit i o m) Source #
Instance details Defined in Foundation.Conduit.Internal type Failure ( Conduit i o m) = Failure m

data ResourceT m a Source #

Instances

Instances details

MonadTrans ResourceT Source #
Instance details Defined in Foundation.Conduit.Internal Methods lift :: Monad m => m a -> ResourceT m a Source #
Monad m => Monad ( ResourceT m) Source #
Instance details Defined in Foundation.Conduit.Internal Methods (>>=) :: ResourceT m a -> (a -> ResourceT m b) -> ResourceT m b Source # (>>) :: ResourceT m a -> ResourceT m b -> ResourceT m b Source # return :: a -> ResourceT m a Source #
Functor m => Functor ( ResourceT m) Source #
Instance details Defined in Foundation.Conduit.Internal Methods fmap :: (a -> b) -> ResourceT m a -> ResourceT m b Source # (<$) :: a -> ResourceT m b -> ResourceT m a Source #
Applicative m => Applicative ( ResourceT m) Source #
Instance details Defined in Foundation.Conduit.Internal Methods pure :: a -> ResourceT m a Source # (<>) :: ResourceT m (a -> b) -> ResourceT m a -> ResourceT m b Source # liftA2 :: (a -> b -> c) -> ResourceT m a -> ResourceT m b -> ResourceT m c Source # (>) :: ResourceT m a -> ResourceT m b -> ResourceT m b Source # (<*) :: ResourceT m a -> ResourceT m b -> ResourceT m a Source #
MonadIO m => MonadIO ( ResourceT m) Source #
Instance details Defined in Foundation.Conduit.Internal Methods liftIO :: IO a -> ResourceT m a Source #
MonadBracket m => MonadBracket ( ResourceT m) Source #
Instance details Defined in Foundation.Conduit.Internal Methods generalBracket :: ResourceT m a -> (a -> b -> ResourceT m ignored1) -> (a -> SomeException -> ResourceT m ignored2) -> (a -> ResourceT m b) -> ResourceT m b Source #
MonadCatch m => MonadCatch ( ResourceT m) Source #
Instance details Defined in Foundation.Conduit.Internal Methods catch :: Exception e => ResourceT m a -> (e -> ResourceT m a) -> ResourceT m a Source #
MonadThrow m => MonadThrow ( ResourceT m) Source #
Instance details Defined in Foundation.Conduit.Internal Methods throw :: Exception e => e -> ResourceT m a Source #

newtype ZipSink i m r Source #

Constructors

ZipSink
Fields getZipSink :: Conduit i () m r

Instances

Instances details

Monad m => Functor ( ZipSink i m) Source #
Instance details Defined in Foundation.Conduit.Internal Methods fmap :: (a -> b) -> ZipSink i m a -> ZipSink i m b Source # (<$) :: a -> ZipSink i m b -> ZipSink i m a Source #
Monad m => Applicative ( ZipSink i m) Source #
Instance details Defined in Foundation.Conduit.Internal Methods pure :: a -> ZipSink i m a Source # (<>) :: ZipSink i m (a -> b) -> ZipSink i m a -> ZipSink i m b Source # liftA2 :: (a -> b -> c) -> ZipSink i m a -> ZipSink i m b -> ZipSink i m c Source # (>) :: ZipSink i m a -> ZipSink i m b -> ZipSink i m b Source # (<*) :: ZipSink i m a -> ZipSink i m b -> ZipSink i m a Source #

await :: Conduit i o m ( Maybe i) Source #

Await for a value from upstream.

awaitForever :: (input -> Conduit input output monad b) -> Conduit input output monad () Source #

yield :: Monad m => o -> Conduit i o m () Source #

Send a value downstream.

yields :: ( Monad m, Foldable os, Element os ~ o) => os -> Conduit i o m () Source #

Send values downstream.

yieldOr Source #

Arguments

:: o
-> m ()	finalizer
-> Conduit i o m ()

Same as yield , but additionally takes a finalizer to be run if the downstream component terminates.

leftover :: i -> Conduit i o m () Source #

Provide leftover input to be consumed by the next component in the current monadic binding.

runConduit :: Monad m => Conduit () () m r -> m r Source #

Run a conduit pipeline to completion.

runConduitPure :: Conduit () () Identity r -> r Source #

Run a pure conduit pipeline to completion.

runConduitRes :: ( MonadBracket m, MonadIO m) => Conduit () () ( ResourceT m) r -> m r Source #

Run a conduit pipeline in a ResourceT context for acquiring resources.

fuse :: Monad m => Conduit a b m () -> Conduit b c m r -> Conduit a c m r Source #

Send the output of the first Conduit component to the second Conduit component.

(.|) :: Monad m => Conduit a b m () -> Conduit b c m r -> Conduit a c m r infixr 2 Source #

Operator version of fuse .

sourceFile :: MonadResource m => FilePath -> Conduit i ( UArray Word8 ) m () Source #

sourceHandle :: MonadIO m => Handle -> Conduit i ( UArray Word8 ) m () Source #

sinkFile :: MonadResource m => FilePath -> Conduit ( UArray Word8 ) i m () Source #

sinkHandle :: MonadIO m => Handle -> Conduit ( UArray Word8 ) o m () Source #

sinkList :: Monad m => Conduit i o m [i] Source #

bracketConduit :: MonadResource m => IO a -> (a -> IO b) -> (a -> Conduit i o m r) -> Conduit i o m r Source #