arrows-0.4.1.1: Arrow classes and transformers Source code Contents Index

Control.Arrow.Transformer.Static Portability non-portable (multi-parameter type classes) Stability experimental Maintainer ross@soi.city.ac.uk

Description

Arrow transformer adding static information.

Synopsis

data StaticArrow f a b c type StaticMonadArrow m = StaticArrow (WrappedMonad m) type StaticArrowArrow a s = StaticArrow (WrappedArrow a s) wrapA :: (Arrow a, Arrow a') => a s (a' b c) -> StaticArrowArrow a s a' b c unwrapA :: (Arrow a, Arrow a') => StaticArrowArrow a s a' b c -> a s (a' b c) wrapM :: (Monad m, Arrow a) => m (a b c) -> StaticMonadArrow m a b c unwrapM :: (Monad m, Arrow a) => StaticMonadArrow m a b c -> m (a b c)

Documentation

data StaticArrow f a b c Source

An arrow type that augments the underlying arrow with static information. Instances (ArrowError ex a, Applicative f) => ArrowError ex (StaticArrow f a) (ArrowWriter w a, Applicative f) => ArrowWriter w (StaticArrow f a) (ArrowState s a, Applicative f) => ArrowState s (StaticArrow f a) (ArrowReader r a, Applicative f) => ArrowReader r (StaticArrow f a) (ArrowAddError ex a a', Applicative f) => ArrowAddError ex (StaticArrow f a) (StaticArrow f a') (ArrowAddWriter w a a', Applicative f) => ArrowAddWriter w (StaticArrow f a) (StaticArrow f a') (ArrowAddReader r a a', Applicative f) => ArrowAddReader r (StaticArrow f a) (StaticArrow f a') (ArrowAddState s a a', Applicative f) => ArrowAddState s (StaticArrow f a) (StaticArrow f a') (Arrow a, Applicative f) => ArrowTransformer (StaticArrow f) a (Arrow a, Applicative f) => Arrow (StaticArrow f a) (ArrowZero a, Applicative f) => ArrowZero (StaticArrow f a) (ArrowPlus a, Applicative f) => ArrowPlus (StaticArrow f a) (ArrowChoice a, Applicative f) => ArrowChoice (StaticArrow f a) (ArrowLoop a, Applicative f) => ArrowLoop (StaticArrow f a) (Category a, Applicative f) => Category (StaticArrow f a) (ArrowCircuit a, Applicative f) => ArrowCircuit (StaticArrow f a) (ArrowAddStream a a', Applicative f) => ArrowAddStream (StaticArrow f a) (StaticArrow f a') (Arrow a, Applicative f) => Functor (StaticArrow f a b) (Arrow a, Applicative f) => Applicative (StaticArrow f a b) (ArrowPlus a, Applicative f) => Alternative (StaticArrow f a b) (ArrowPlus a, Applicative f) => Monoid (StaticArrow f a b c)

type StaticMonadArrow m = StaticArrow (WrappedMonad m) Source

A special case is monads applied to the whole arrow, in contrast to Kleisli arrows, in which the monad is applied to the output.

type StaticArrowArrow a s = StaticArrow (WrappedArrow a s) Source

A special case.

wrapA :: (Arrow a, Arrow a') => a s (a' b c) -> StaticArrowArrow a s a' b c Source

unwrapA :: (Arrow a, Arrow a') => StaticArrowArrow a s a' b c -> a s (a' b c) Source

wrapM :: (Monad m, Arrow a) => m (a b c) -> StaticMonadArrow m a b c Source

unwrapM :: (Monad m, Arrow a) => StaticMonadArrow m a b c -> m (a b c) Source

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