Control.Monad.List

The List monad.

Documentation

newtype ListT m a

Constructors

ListT

Fields

runListT :: m [a]

Instances

MonadTrans ListT

Monad m => Monad (ListT m)

Monad m => Functor (ListT m)

(Monad m, MonadTrans t, Monad (t (ListT m))) => MonadPlus (t (ListT m))

Monad m => MonadPlus (ListT m)

MonadIO m => MonadIO (ListT m)

mapListT :: (m [a] -> n [b]) -> ListT m a -> ListT n b

module Control.Monad

module Control.Monad.Trans