Fold.Effectful.Type

Documentation

data EffectfulFold m a b

Processes inputs of type a and results in an effectful value of type m b

Constructors

forall x. EffectfulFold

Fields

• initial :: m x
• step :: x -> a -> m x
• extract :: x -> m b

Instances

Applicative m => Applicative (EffectfulFold m a)

Defined in Fold.Effectful.Type

Methods

pure :: a0 -> EffectfulFold m a a0

(<*>) :: EffectfulFold m a (a0 -> b) -> EffectfulFold m a a0 -> EffectfulFold m a b

liftA2 :: (a0 -> b -> c) -> EffectfulFold m a a0 -> EffectfulFold m a b -> EffectfulFold m a c

(*>) :: EffectfulFold m a a0 -> EffectfulFold m a b -> EffectfulFold m a b

(<*) :: EffectfulFold m a a0 -> EffectfulFold m a b -> EffectfulFold m a a0

Functor m => Functor (EffectfulFold m a)

Defined in Fold.Effectful.Type

Methods

fmap :: (a0 -> b) -> EffectfulFold m a a0 -> EffectfulFold m a b

(<$) :: a0 -> EffectfulFold m a b -> EffectfulFold m a a0

(Monoid b, Monad m) => Monoid (EffectfulFold m a b)

Defined in Fold.Effectful.Type

Methods

mempty :: EffectfulFold m a b

mappend :: EffectfulFold m a b -> EffectfulFold m a b -> EffectfulFold m a b

mconcat :: [EffectfulFold m a b] -> EffectfulFold m a b

(Semigroup b, Monad m) => Semigroup (EffectfulFold m a b)

Defined in Fold.Effectful.Type

Methods

(<>) :: EffectfulFold m a b -> EffectfulFold m a b -> EffectfulFold m a b

sconcat :: NonEmpty (EffectfulFold m a b) -> EffectfulFold m a b

stimes :: Integral b0 => b0 -> EffectfulFold m a b -> EffectfulFold m a b