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Control.Monad.Cont Portability non-portable Stability experimental Maintainer libraries@haskell.org

Description

Continuation monads.

class (Monad m) => MonadCont m where

Methods callCC :: ((a -> m b) -> m a) -> m a Instances MonadCont (Cont r) (Monad m) => MonadCont (ContT r m) (MonadCont m) => MonadCont (ReaderT r m) (MonadCont m) => MonadCont (StateT s m) (Monoid w, MonadCont m) => MonadCont (WriterT w m) (Monoid w, MonadCont m) => MonadCont (RWST r w s m) (Error e, MonadCont m) => MonadCont (ErrorT e m) (MonadCont m) => MonadCont (ListT m)

data Cont r a

Constructors Cont runCont :: ((a -> r) -> r) Instances Functor (Cont r) Monad (Cont r) MonadCont (Cont r)

runCont :: Cont r a -> (a -> r) -> r

mapCont :: (r -> r) -> Cont r a -> Cont r a

withCont :: ((b -> r) -> a -> r) -> Cont r a -> Cont r b

data ContT r m a

Constructors ContT runContT :: ((a -> m r) -> m r) Instances (Monad m) => Functor (ContT r m) (Monad m) => Monad (ContT r m) (Monad m) => MonadCont (ContT r m) MonadTrans (ContT r) (MonadIO m) => MonadIO (ContT r m) (MonadReader r' m) => MonadReader r' (ContT r m) (MonadState s m) => MonadState s (ContT r m)

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

mapContT :: (m r -> m r) -> ContT r m a -> ContT r m a

withContT :: ((b -> m r) -> a -> m r) -> ContT r m a -> ContT r m b

module Control.Monad

module Control.Monad.Trans

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