Control.Comonad.Store.Class

Documentation

class Comonad w => ComonadStore s w | w -> s where

Minimal complete definition

pos, peek

Methods

pos :: w a -> s

peek :: s -> w a -> a

peeks :: (s -> s) -> w a -> a

seek :: s -> w a -> w a

seeks :: (s -> s) -> w a -> w a

experiment :: Functor f => (s -> f s) -> w a -> f a

Instances

(ComonadStore s w, Monoid m) => ComonadStore s (TracedT m w)

Methods

pos :: TracedT m w a -> s

peek :: s -> TracedT m w a -> a

peeks :: (s -> s) -> TracedT m w a -> a

seek :: s -> TracedT m w a -> TracedT m w a

seeks :: (s -> s) -> TracedT m w a -> TracedT m w a

experiment :: Functor f => (s -> f s) -> TracedT m w a -> f a

ComonadStore s w => ComonadStore s (EnvT e w)

Methods

pos :: EnvT e w a -> s

peek :: s -> EnvT e w a -> a

peeks :: (s -> s) -> EnvT e w a -> a

seek :: s -> EnvT e w a -> EnvT e w a

seeks :: (s -> s) -> EnvT e w a -> EnvT e w a

experiment :: Functor f => (s -> f s) -> EnvT e w a -> f a

ComonadStore s w => ComonadStore s (IdentityT * w)

Methods

pos :: IdentityT * w a -> s

peek :: s -> IdentityT * w a -> a

peeks :: (s -> s) -> IdentityT * w a -> a

seek :: s -> IdentityT * w a -> IdentityT * w a

seeks :: (s -> s) -> IdentityT * w a -> IdentityT * w a

experiment :: Functor f => (s -> f s) -> IdentityT * w a -> f a

Comonad w => ComonadStore s (StoreT s w)

Methods

pos :: StoreT s w a -> s

peek :: s -> StoreT s w a -> a

peeks :: (s -> s) -> StoreT s w a -> a

seek :: s -> StoreT s w a -> StoreT s w a

seeks :: (s -> s) -> StoreT s w a -> StoreT s w a

experiment :: Functor f => (s -> f s) -> StoreT s w a -> f a

lowerPos :: (ComonadTrans t, ComonadStore s w) => t w a -> s

lowerPeek :: (ComonadTrans t, ComonadStore s w) => s -> t w a -> a