module Control.Monad.StateX.Strict (
module Control.Monad.StateX.Class,
StateX(..),
mkStateX,
runStateX,
evalStatex,
execStatex,
mapStatex,
withStatex,
StateTX(..),
mkStateTX,
runStateTX,
evalStateTX,
execStateTX,
mapStateTX,
withStateTX,
module Control.Monad,
module Control.Monad.Fix,
module Control.Monad.Trans,
) where
import Control.Monad
import Control.Monad.Cont.Class
import Control.Monad.Fix
import Control.Monad.Trans
import Control.Monad.Error
import Control.Monad.Writer
import Control.Monad.RWS
import Control.Monad.Index
import Control.Monad.ErrorX.Class
import Control.Monad.ReaderX.Class
import Control.Monad.StateX.Class
import Control.Monad.WriterX.Class
newtype StateX ix s a = StateX { runStateX' :: s -> (a, s) }
mkStateX :: (Index ix) => ix -> (s->(a,s)) -> StateX ix s a
mkStateX _ v = StateX v
runStateX :: (Index ix) => ix -> StateX ix s a -> (s->(a,s))
runStateX _ m s = runStateX' m s
evalStatex :: (Index ix) => ix -> StateX ix s a -> s -> a
evalStatex (_::ix) m s = fst (runStateX' m s)
execStatex :: (Index ix) => ix -> StateX ix s a -> s -> s
execStatex (_::ix) m s = snd (runStateX' m s)
mapStatex :: (Index ix) => ix -> ((a, s) -> (b, s)) -> StateX ix s a -> StateX ix s b
mapStatex (_::ix) f m = mkStateX (getVal::ix) $ f . runStateX' m
withStatex :: (Index ix) => ix -> (s -> s) -> StateX ix s a -> StateX ix s a
withStatex (_::ix) f m = mkStateX (getVal::ix) $ runStateX' m . f
instance (Index ix) => Functor (StateX ix s) where
fmap f m = mkStateX (getVal::ix) $ \s ->
case runStateX' m s of
(a, s') -> (f a, s')
instance (Index ix) => Monad (StateX ix s) where
return a = mkStateX (getVal::ix) $ \s -> (a, s)
((StateX x)::(StateX ix s a)) >>= f = mkStateX (getVal::ix) $ \s ->
case (x s) of (v,s') -> runStateX' (f v) s'
instance (Index ix) => MonadFix (StateX ix s) where
mfix f = mkStateX (getVal::ix) $ \s -> let (a, s') = runStateX' (f a) s in (a, s')
instance (Index ix) => MonadStateX ix s (StateX ix s) where
getx (ixv::ix) = mkStateX ixv $ \s -> (s, s)
putx (ixv::ix) s = mkStateX ixv $ \_ -> ((), s)
newtype StateTX ix s m a = StateTX { runStateTX' :: s -> m (a,s) }
mkStateTX :: (Index ix) => ix -> (s->m(a,s)) -> StateTX ix s m a
mkStateTX _ v = StateTX v
runStateTX :: (Index ix) => ix -> StateTX ix s m a -> s -> m (a,s)
runStateTX _ m s = runStateTX' m s
evalStateTX :: (Monad m, Index ix) => ix -> StateTX ix s m a -> s -> m a
evalStateTX (_::ix) m s = do
(a, _) <- runStateTX' m s
return a
execStateTX :: (Monad m, Index ix) => ix -> StateTX ix s m a -> s -> m s
execStateTX (_::ix) m s = do
(_, s') <- runStateTX' m s
return s'
mapStateTX :: (Index ix) => ix -> (m (a, s) -> n (b, s)) -> StateTX ix s m a -> StateTX ix s n b
mapStateTX (_::ix) f m = mkStateTX (getVal::ix) $ f . runStateTX' m
withStateTX :: (Index ix) => ix -> (s -> s) -> StateTX ix s m a -> StateTX ix s m a
withStateTX (_::ix) f m = mkStateTX (getVal::ix) $ runStateTX' m . f
instance (Monad m, Index ix) => Functor (StateTX ix s m) where
fmap f m = mkStateTX (getVal::ix) $ \s -> do
(x, s') <- runStateTX' m s
return (f x, s')
instance (Monad m, Index ix) => Monad (StateTX ix s m) where
return a = mkStateTX (getVal::ix) $ \s -> return (a, s)
((StateTX x)::(StateTX ix s m a)) >>= f = mkStateTX (getVal::ix) $ \s -> do
(a, s') <- x s
runStateTX' (f a) s'
fail str = mkStateTX (getVal::ix) $ \_ -> fail str
instance (MonadPlus m, Index ix) => MonadPlus (StateTX ix s m) where
mzero = mkStateTX (getVal::ix) $ \_ -> mzero
m `mplus` n = mkStateTX (getVal::ix) $ \s -> runStateTX' m s `mplus` runStateTX' n s
instance (MonadFix m, Index ix) => MonadFix (StateTX ix s m) where
mfix f = mkStateTX (getVal::ix) $ \s -> mfix $ \ ~(a, _) -> runStateTX' (f a) s
instance (Monad m, Index ix) => MonadStateX ix s (StateTX ix s m) where
getx (ixv::ix) = mkStateTX ixv $ \s -> return (s, s)
putx (ixv::ix) s = mkStateTX ixv $ \_ -> return ((), s)
instance (Index ix) => MonadTrans (StateTX ix s) where
lift m = mkStateTX (getVal::ix) $ \s -> do
a <- m
return (a, s)
instance (MonadIO m, Index ix) => MonadIO (StateTX ix s m) where
liftIO = lift . liftIO
instance (MonadCont m, Index ix) => MonadCont (StateTX ix s m) where
callCC f = mkStateTX (getVal::ix) $ \s ->
callCC $ \c ->
runStateTX' (f (\a -> mkStateTX (getVal::ix) $ \s' -> c (a, s'))) s
instance (MonadError e m, Index ix) => MonadError e (StateTX ix s m) where
throwError = lift . throwError
m `catchError` h = mkStateTX (getVal::ix) $ \s -> runStateTX' m s
`catchError` \e -> runStateTX' (h e) s
instance (MonadErrorX ixe e m, Index ixs) => MonadErrorX ixe e (StateTX ixs s m) where
throwErrorx (ixv::ixe) = lift . throwErrorx ixv
catchErrorx (ixv::ixe) m h = mkStateTX (getVal::ixs) $ \s ->
catchErrorx
ixv
(runStateTX' m s)
(\e -> runStateTX' (h e) s)
instance (MonadState s1 m,Index ix) => MonadState s1 (StateTX ix s2 m) where
get = mkStateTX (getVal::ix) $ \s -> do
n <- get
return (n,s)
put (v::s1) = mkStateTX (getVal::ix) $ \s -> do
put v
return ((),s)
instance (Index ix1, Index ix2, MonadStateX ix1 s1 m)
=> MonadStateX ix1 s1 (StateTX ix2 s2 m) where
getx (ixv::ix1) = mkStateTX (getVal::ix2) $
\(s::s2)-> getx (ixv::ix1) >>= (\v1 -> return (v1,s))
putx (ixv::ix1) v1 = mkStateTX (getVal::ix2) $
\(s::s2)-> putx (ixv::ix1) (v1) >> return ((),s)
instance (Index ix, MonadReader r m) => MonadReader r (StateTX ix st m) where
ask = lift ask
local f m = mkStateTX (getVal::ix) $ \(s::st) -> local f (runStateTX' m s)
instance (Index ixs, MonadReaderX ixr r m) => MonadReaderX ixr r (StateTX ixs st m) where
askx (ixv::ixr) = lift $ askx ixv
localx (ixv::ixr) f m = mkStateTX (getVal::ixs) $ \(s::st) -> localx ixv f (runStateTX' m s)
--Writer
instance (Index ix, MonadWriter w m) => MonadWriter w (StateTX ix s m) where
tell = lift . tell
listen m = mkStateTX (getVal::ix) $ \s -> do
~((a,s'),w) <- listen (runStateTX' m s)
return ((a,w),s')
pass m = mkStateTX (getVal::ix) $ \s -> pass $ do
~((a,f),s') <- runStateTX' m s
return ((a,s'),f)
instance (Index ixs, MonadWriterX ixw w m) => MonadWriterX ixw w (StateTX ixs s m) where
tellx (ixv::ixw) = lift . tellx ixv
listenx (ixv::ixw) m = mkStateTX (getVal::ixs) $ \s -> do
~((a,s'),w) <- listenx ixv (runStateTX' m s)
return ((a,w),s')
passx (ixv::ixw) m = mkStateTX (getVal::ixs) $ \s -> passx ixv $ do
~((a,f),s') <- runStateTX' m s
return ((a,s'),f)
instance (Monoid w, Index ix2, MonadReader r m, MonadState s m, MonadWriter w m)
=> MonadRWS r w s (StateTX ix2 s2 m) where