Control.Comonad.Hoist.Class

Documentation

class ComonadHoist t where

Minimal complete definition

cohoist

Methods

cohoist :: (Comonad w, Comonad v) => (forall x. w x -> v x) -> t w a -> t v a

Given any comonad-homomorphism from w to v this yields a comonad homomorphism from t w to t v.

Instances

ComonadHoist (IdentityT *)

Methods

cohoist :: (Comonad w, Comonad v) => (forall x. w x -> v x) -> IdentityT * w a -> IdentityT * v a

ComonadHoist (EnvT e)

Methods

cohoist :: (Comonad w, Comonad v) => (forall x. w x -> v x) -> EnvT e w a -> EnvT e v a

ComonadHoist (StoreT s)

Methods

cohoist :: (Comonad w, Comonad v) => (forall x. w x -> v x) -> StoreT s w a -> StoreT s v a

ComonadHoist (TracedT m)

Methods

cohoist :: (Comonad w, Comonad v) => (forall x. w x -> v x) -> TracedT m w a -> TracedT m v a