System.Console.Haskeline.MonadException

This module redefines some of the functions in Control.Exception to work for more general monads than only IO.

Documentation

class MonadIO m => MonadException m where

Methods

catch :: m a -> (Exception -> m a) -> m a

block :: m a -> m a

unblock :: m a -> m a

Instances

MonadException IO

MonadException m => MonadException (DumbTerm m)

MonadException m => MonadException (Draw m)

MonadException m => MonadException (InputT m)

MonadException m => MonadException (StateT s m)

MonadException m => MonadException (ReaderT r m)

handle :: MonadException m => (Exception -> m a) -> m a -> m a

finally :: MonadException m => m a -> m b -> m a

throwIO :: MonadIO m => Exception -> m a

bracket :: MonadException m => m a -> (a -> m b) -> (a -> m c) -> m c