Algebra.Monad.Cont

The MonadCont class

class Monad m => MonadCont m where

Methods

callCC :: ((a -> m b) -> m a) -> m a

Instances

MonadCont m => MonadCont (StateT s m)

MonadCont m => MonadCont (ReaderT r m)

(Monoid w, MonadCont m) => MonadCont (WriterT w m)

Monad m => MonadCont (ContT r m)

(Monoid w, MonadCont m) => MonadCont (RWST r w s m)

The Continuation transformer

newtype ContT r m a

A simple continuation monad implementation

Constructors

ContT

Fields

runContT :: (a -> m r) -> m r

Instances

MonadTrans (ContT r)

Unit m => Unit (ContT r m)

Monad m => MonadCont (ContT r m)

Monad m => Monad (ContT r m)

Applicative m => Applicative (ContT r m)

Functor f => Functor (ContT r f)

Ring (m r) => Ring (ContT r m a)

Monoid (m r) => Monoid (ContT r m a)

Semigroup (m r) => Semigroup (ContT r m a)

type Cont r a = ContT r Id a

evalContT :: Unit m => ContT r m r -> m r

evalCont :: Cont r r -> r