-- Communicating Haskell Processes.
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-- | Various (orphan) instances for monads from the chp and chp-plus libraries
-- for classes from the mtl library.
--
-- There are 'MonadIO' instances for:
--
-- * 'CHP'
--
-- * 'CHPTest'
--
-- * 'Composed'
--
-- There are 'MonadCHP' instances of the form @instance MonadCHP m => MonadCHP
-- (t m)@, where t is one of the monad transformers:
--
-- * WriterT (lazy and strict)
--
-- * StateT (lazy and strict)
--
-- * RWST (lazy and strict)
--
-- * 'ReaderT'
--
-- * 'ErrorT'
--
-- * 'ContT'
module Control.Concurrent.CHP.MTL where
import Control.Concurrent.CHP
import Control.Concurrent.CHP.Composed
import Control.Concurrent.CHP.Test
import Control.Monad.Cont
import Control.Monad.Error
import Control.Monad.Reader
import qualified Control.Monad.RWS.Lazy as LR
import qualified Control.Monad.RWS.Strict as SR
import qualified Control.Monad.State.Lazy as LS
import qualified Control.Monad.State.Strict as SS
import qualified Control.Monad.Writer.Lazy as LW
import qualified Control.Monad.Writer.Strict as SW
import Control.Monad.Trans
import Data.Monoid
instance MonadIO CHP where
liftIO = liftIO_CHP
instance (Monoid w, MonadCHP m) => MonadCHP (LW.WriterT w m) where
liftCHP = lift . liftCHP
instance (Monoid w, MonadCHP m) => MonadCHP (SW.WriterT w m) where
liftCHP = lift . liftCHP
instance MonadCHP m => MonadCHP (LS.StateT s m) where
liftCHP = lift . liftCHP
instance MonadCHP m => MonadCHP (SS.StateT s m) where
liftCHP = lift . liftCHP
instance (Monoid w, MonadCHP m) => MonadCHP (LR.RWST r w s m) where
liftCHP = lift . liftCHP
instance (Monoid w, MonadCHP m) => MonadCHP (SR.RWST r w s m) where
liftCHP = lift . liftCHP
instance (Error e, MonadCHP m) => MonadCHP (ErrorT e m) where
liftCHP = lift . liftCHP
instance MonadCHP m => MonadCHP (ReaderT r m) where
liftCHP = lift . liftCHP
instance MonadCHP m => MonadCHP (ContT r m) where
liftCHP = lift . liftCHP
instance MonadIO CHPTest where
liftIO = liftCHP . liftIO
instance MonadIO Composed where
liftIO = liftCHP . liftIO