Conduit.Simple

Description

Synopsis

• newtype Source m a = Source {
  • getSource :: forall r. r -> (r -> a -> EitherT r m r) -> EitherT r m r
  }
• type Conduit a m b = Source m a -> Source m b
• type Sink a m r = Source m a -> m r
• sequenceSources :: (Traversable f, Monad m) => f (Source m a) -> Source m (f a)
• returnC :: Monad m => m a -> Source m a
• ($=) :: a -> (a -> b) -> b
• (=$) :: (a -> b) -> (b -> c) -> a -> c
• ($$) :: a -> (a -> b) -> b
• rewrap :: Monad m => (a -> b) -> EitherT a m a -> EitherT b m b
• rewrapM :: Monad m => (a -> EitherT b m b) -> EitherT a m a -> EitherT b m b
• resolve :: Monad m => (r -> a -> EitherT r m r) -> r -> a -> m r
• yieldMany :: (Monad m, MonoFoldable mono) => mono -> Source m (Element mono)
• sourceList :: (Monad m, MonoFoldable mono) => mono -> Source m (Element mono)
• yieldOne :: Monad m => a -> Source m a
• unfoldC :: forall m a b. Monad m => (b -> Maybe (a, b)) -> b -> Source m a
• enumFromToC :: forall m a. (Monad m, Enum a, Eq a) => a -> a -> Source m a
• iterateC :: forall m a. Monad m => (a -> a) -> a -> Source m a
• repeatC :: forall m a. Monad m => a -> Source m a
• replicateC :: forall m a. Monad m => Int -> a -> Source m a
• sourceLazy :: (Monad m, LazySequence lazy strict) => lazy -> Source m strict
• repeatMC :: forall m a. Monad m => m a -> Source m a
• repeatWhileMC :: forall m a. Monad m => m a -> (a -> Bool) -> Source m a
• replicateMC :: forall m a. Monad m => Int -> m a -> Source m a
• sourceHandle :: forall m a. (MonadIO m, IOData a) => Handle -> Source m a
• sourceFile :: (MonadBaseControl IO m, MonadIO m, IOData a) => FilePath -> Source m a
• sourceIOHandle :: (MonadBaseControl IO m, MonadIO m, IOData a) => IO Handle -> Source m a
• stdinC :: (MonadBaseControl IO m, MonadIO m, IOData a) => Source m a
• initRepeat :: Monad m => m seed -> (seed -> m a) -> Source m a
• initReplicate :: Monad m => m seed -> (seed -> m a) -> Int -> Source m a
• sourceRandom :: (Variate a, MonadIO m) => Source m a
• sourceRandomN :: (Variate a, MonadIO m) => Int -> Source m a
• sourceRandomGen :: (Variate a, MonadBase base m, PrimMonad base) => Gen (PrimState base) -> Source m a
• sourceRandomNGen :: (Variate a, MonadBase base m, PrimMonad base) => Gen (PrimState base) -> Int -> Source m a
• sourceDirectory :: forall m. (MonadBaseControl IO m, MonadIO m) => FilePath -> Source m FilePath
• sourceDirectoryDeep :: forall m. (MonadBaseControl IO m, MonadIO m) => Bool -> FilePath -> Source m FilePath
• dropC :: Monad m => Int -> Conduit a m a
• dropCE :: (Monad m, IsSequence seq) => Index seq -> Conduit seq m seq
• dropWhileC :: Monad m => (a -> Bool) -> Conduit a m a
• dropWhileCE :: (Monad m, IsSequence seq) => (Element seq -> Bool) -> Conduit seq m seq
• foldC :: (Monad m, Monoid a) => Sink a m a
• foldCE :: (Monad m, MonoFoldable mono, Monoid (Element mono)) => Sink mono m (Element mono)
• foldlC :: Monad m => (a -> b -> a) -> a -> Sink b m a
• foldlCE :: (Monad m, MonoFoldable mono) => (a -> Element mono -> a) -> a -> Sink mono m a
• foldMapC :: (Monad m, Monoid b) => (a -> b) -> Sink a m b
• foldMapCE :: (Monad m, MonoFoldable mono, Monoid w) => (Element mono -> w) -> Sink mono m w
• allC :: Monad m => (a -> Bool) -> Sink a m Bool
• allCE :: (Monad m, MonoFoldable mono) => (Element mono -> Bool) -> Sink mono m Bool
• anyC :: Monad m => (a -> Bool) -> Sink a m Bool
• anyCE :: (Monad m, MonoFoldable mono) => (Element mono -> Bool) -> Sink mono m Bool
• andC :: Monad m => Sink Bool m Bool
• andCE :: (Monad m, MonoFoldable mono, Element mono ~ Bool) => Sink mono m Bool
• orC :: Monad m => Sink Bool m Bool
• orCE :: (Monad m, MonoFoldable mono, Element mono ~ Bool) => Sink mono m Bool
• elemC :: (Monad m, Eq a) => a -> Sink a m Bool
• elemCE :: (Monad m, EqSequence seq) => Element seq -> Sink seq m Bool
• notElemC :: (Monad m, Eq a) => a -> Sink a m Bool
• notElemCE :: (Monad m, EqSequence seq) => Element seq -> Sink seq m Bool
• produceList :: Monad m => ([a] -> b) -> Source m a -> m b
• sinkLazy :: (Monad m, LazySequence lazy strict) => Sink strict m lazy
• sinkList :: Monad m => Sink a m [a]
• sinkVector :: (MonadBase base m, Vector v a, PrimMonad base) => Sink a m (v a)
• sinkVectorN :: (MonadBase base m, Vector v a, PrimMonad base) => Int -> Sink a m (v a)
• sinkBuilder :: (Monad m, Monoid builder, ToBuilder a builder) => Sink a m builder
• sinkLazyBuilder :: (Monad m, Monoid builder, ToBuilder a builder, Builder builder lazy) => Sink a m lazy
• sinkNull :: Monad m => Sink a m ()
• awaitNonNull :: (Monad m, MonoFoldable a) => Conduit a m (Maybe (NonNull a))
• headCE :: (Monad m, IsSequence seq) => Sink seq m (Maybe (Element seq))
• lastC :: Monad m => Sink a m (Maybe a)
• lastCE :: (Monad m, IsSequence seq) => Sink seq m (Maybe (Element seq))
• lengthC :: (Monad m, Num len) => Sink a m len
• lengthCE :: (Monad m, Num len, MonoFoldable mono) => Sink mono m len
• lengthIfC :: (Monad m, Num len) => (a -> Bool) -> Sink a m len
• lengthIfCE :: (Monad m, Num len, MonoFoldable mono) => (Element mono -> Bool) -> Sink mono m len
• maximumC :: (Monad m, Ord a) => Sink a m (Maybe a)
• maximumCE :: (Monad m, OrdSequence seq) => Sink seq m (Maybe (Element seq))
• minimumC :: (Monad m, Ord a) => Sink a m (Maybe a)
• minimumCE :: (Monad m, OrdSequence seq) => Sink seq m (Maybe (Element seq))
• sumC :: (Monad m, Num a) => Sink a m a
• sumCE :: (Monad m, MonoFoldable mono, Num (Element mono)) => Sink mono m (Element mono)
• productC :: (Monad m, Num a) => Sink a m a
• productCE :: (Monad m, MonoFoldable mono, Num (Element mono)) => Sink mono m (Element mono)
• findC :: Monad m => (a -> Bool) -> Sink a m (Maybe a)
• mapM_C :: Monad m => (a -> m ()) -> Sink a m ()
• mapM_CE :: (Monad m, MonoFoldable mono) => (Element mono -> m ()) -> Sink mono m ()
• foldMC :: Monad m => (a -> b -> m a) -> a -> Sink b m a
• foldMCE :: (Monad m, MonoFoldable mono) => (a -> Element mono -> m a) -> a -> Sink mono m a
• foldMapMC :: (Monad m, Monoid w) => (a -> m w) -> Sink a m w
• foldMapMCE :: (Monad m, MonoFoldable mono, Monoid w) => (Element mono -> m w) -> Sink mono m w
• sinkFile :: (MonadBaseControl IO m, MonadIO m, IOData a) => FilePath -> Sink a m ()
• sinkHandle :: (MonadIO m, IOData a) => Handle -> Sink a m ()
• sinkIOHandle :: (MonadBaseControl IO m, MonadIO m, IOData a) => IO Handle -> Sink a m ()
• printC :: (Show a, MonadIO m) => Sink a m ()
• stdoutC :: (MonadIO m, IOData a) => Sink a m ()
• stderrC :: (MonadIO m, IOData a) => Sink a m ()
• mapC :: Monad m => (a -> b) -> Conduit a m b
• mapC' :: Monad m => (a -> b) -> Conduit a m b
• mapCE :: (Monad m, Functor f) => (a -> b) -> Conduit (f a) m (f b)
• omapCE :: (Monad m, MonoFunctor mono) => (Element mono -> Element mono) -> Conduit mono m mono
• concatMapC :: (Monad m, MonoFoldable mono) => (a -> mono) -> Conduit a m (Element mono)
• concatMapCE :: (Monad m, MonoFoldable mono, Monoid w) => (Element mono -> w) -> Conduit mono m w
• takeC :: Monad m => Int -> Source m a -> Source m a
• takeCE :: (Monad m, IsSequence seq) => Index seq -> Conduit seq m seq
• takeWhileC :: Monad m => (a -> Bool) -> Source m a -> Source m a
• takeWhileCE :: (Monad m, IsSequence seq) => (Element seq -> Bool) -> Conduit seq m seq
• takeExactlyC :: Monad m => Int -> Conduit a m b -> Conduit a m b
• takeExactlyCE :: (Monad m, IsSequence a) => Index a -> Conduit a m b -> Conduit a m b
• concatC :: (Monad m, MonoFoldable mono) => Conduit mono m (Element mono)
• filterC :: Monad m => (a -> Bool) -> Conduit a m a
• filterCE :: (IsSequence seq, Monad m) => (Element seq -> Bool) -> Conduit seq m seq
• mapWhileC :: Monad m => (a -> Maybe b) -> Conduit a m b
• conduitVector :: (MonadBase base m, Vector v a, PrimMonad base) => Int -> Conduit a m (v a)
• scanlC :: Monad m => (a -> b -> a) -> a -> Conduit b m a
• concatMapAccumC :: Monad m => (a -> accum -> (accum, [b])) -> accum -> Conduit a m b
• intersperseC :: Monad m => a -> Source m a -> Source m a
• encodeBase64C :: Monad m => Conduit ByteString m ByteString
• decodeBase64C :: Monad m => Conduit ByteString m ByteString
• encodeBase64URLC :: Monad m => Conduit ByteString m ByteString
• decodeBase64URLC :: Monad m => Conduit ByteString m ByteString
• encodeBase16C :: Monad m => Conduit ByteString m ByteString
• decodeBase16C :: Monad m => Conduit ByteString m ByteString
• mapMC :: Monad m => (a -> m b) -> Conduit a m b
• mapMCE :: (Monad m, Traversable f) => (a -> m b) -> Conduit (f a) m (f b)
• omapMCE :: (Monad m, MonoTraversable mono) => (Element mono -> m (Element mono)) -> Conduit mono m mono
• concatMapMC :: (Monad m, MonoFoldable mono) => (a -> m mono) -> Conduit a m (Element mono)
• filterMC :: Monad m => (a -> m Bool) -> Conduit a m a
• filterMCE :: (Monad m, IsSequence seq) => (Element seq -> m Bool) -> Conduit seq m seq
• iterMC :: Monad m => (a -> m ()) -> Conduit a m a
• scanlMC :: Monad m => (a -> b -> m a) -> a -> Conduit b m a
• concatMapAccumMC :: Monad m => (a -> accum -> m (accum, [b])) -> accum -> Conduit a m b
• encodeUtf8C :: (Monad m, Utf8 text binary) => Conduit text m binary
• decodeUtf8C :: MonadThrow m => Conduit ByteString m Text
• lineC :: (Monad m, IsSequence seq, Element seq ~ Char) => Conduit seq m o -> Conduit seq m o
• lineAsciiC :: (Monad m, IsSequence seq, Element seq ~ Word8) => Conduit seq m o -> Conduit seq m o
• unlinesC :: (Monad m, IsSequence seq, Element seq ~ Char) => Conduit seq m seq
• unlinesAsciiC :: (Monad m, IsSequence seq, Element seq ~ Word8) => Conduit seq m seq
• linesUnboundedC_ :: forall m seq. (Monad m, IsSequence seq, Eq (Element seq)) => Element seq -> Conduit seq m seq
• linesUnboundedC :: (Monad m, IsSequence seq, Element seq ~ Char) => Conduit seq m seq
• linesUnboundedAsciiC :: (Monad m, IsSequence seq, Element seq ~ Word8) => Conduit seq m seq
• awaitForever :: Monad m => (forall r. a -> (b -> EitherT r m r) -> EitherT r m r -> EitherT r m r) -> Conduit a m b
• asyncC :: (MonadBaseControl IO m, Monad m) => (a -> m b) -> Conduit a m (Async (StM m b))
• fromFoldM :: Monad m => FoldM m a b -> Source m a -> m b
• toFoldM :: Monad m => Sink a m r -> (forall s. FoldM (EitherT s m) a s -> EitherT s m s) -> m r
• sourceTChan :: forall a. TChan a -> Source STM a
• sourceTQueue :: forall a. TQueue a -> Source STM a
• sourceTBQueue :: forall a. TBQueue a -> Source STM a
• untilMC :: forall m a. Monad m => m a -> m Bool -> Source m a
• whileMC :: forall m a. Monad m => m Bool -> m a -> Source m a

Documentation

 Monad m => (a -> b -> m a) -> a -> [b] -> m a

>>> sinkList $ sequenceSources [yieldOne 1, yieldOne 2, yieldOne 3]
[[1,2,3]]

>>> sinkList $ returnC $ sumC $ mapC (+1) $ yieldMany [1..10]
[65]

>>> awaitForever $ \x yield done -> if even x then yield x else done

>>> fromFoldM (FoldM ((return .) . (+)) (return 0) return) $ yieldMany [1..10]
55

>>> toFoldM sumC (\f -> Control.Foldl.foldM f [1..10])
55