haskeline-0.3.2: A command-line interface for user input, written in Haskell. Source code Contents Index

System.Console.Haskeline.MonadException

Description

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 Source

Methods catch :: m a -> (Exception -> m a) -> m a Source block :: m a -> m a Source unblock :: m a -> m a Source 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 Source

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

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

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

throwDynIO :: (Typeable exception, MonadIO m) => exception -> m a Source

handleDyn :: (Typeable exception, MonadException m) => (exception -> m a) -> m a -> m a Source

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