Potoki.Core.Consume

Documentation

newtype Consume input output

Active consumer of input into output. Sort of like a reducer in Map/Reduce.

Automates the management of resources.

Constructors

Consume (Fetch input -> IO output)

An action, which executes the provided fetch in IO, while managing the resources behind the scenes.

apConcurrently :: Consume a (b -> c) -> Consume a b -> Consume a c

list :: Consume input [input]

sum :: Num num => Consume num num

transform :: Transform input1 input2 -> Consume input2 output -> Consume input1 output

Orphan instances

Choice Consume

Methods

left' :: Consume a b -> Consume (Either a c) (Either b c)

right' :: Consume a b -> Consume (Either c a) (Either c b)

Profunctor Consume

Methods

dimap :: (a -> b) -> (c -> d) -> Consume b c -> Consume a d

lmap :: (a -> b) -> Consume b c -> Consume a c

rmap :: (b -> c) -> Consume a b -> Consume a c

(#.) :: Coercible * c b => (b -> c) -> Consume a b -> Consume a c

(.#) :: Coercible * b a => Consume b c -> (a -> b) -> Consume a c

Monad (Consume a)

Methods

(>>=) :: Consume a a -> (a -> Consume a b) -> Consume a b

(>>) :: Consume a a -> Consume a b -> Consume a b

return :: a -> Consume a a

fail :: String -> Consume a a

Functor (Consume input)

Methods

fmap :: (a -> b) -> Consume input a -> Consume input b

(<$) :: a -> Consume input b -> Consume input a

Applicative (Consume a)

Methods

pure :: a -> Consume a a

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

liftA2 :: (a -> b -> c) -> Consume a a -> Consume a b -> Consume a c

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

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

MonadIO (Consume a)

Methods

liftIO :: IO a -> Consume a a