{-# LANGUAGE TypeFamilies #-}
module Simulation.Aivika.IO.Ref.Base.Strict () where
import Data.IORef
import Control.Monad
import Control.Monad.Trans
import Simulation.Aivika.Trans.Internal.Types
import Simulation.Aivika.Trans.Ref.Base.Strict
instance MonadRef IO where
{-# SPECIALISE instance MonadRef IO #-}
newtype Ref IO a = Ref { forall a. Ref IO a -> IORef a
refValue :: IORef a }
{-# INLINE newRef #-}
newRef :: forall a. a -> Simulation IO (Ref IO a)
newRef a
a =
(Run IO -> IO (Ref IO a)) -> Simulation IO (Ref IO a)
forall (m :: * -> *) a. (Run m -> m a) -> Simulation m a
Simulation ((Run IO -> IO (Ref IO a)) -> Simulation IO (Ref IO a))
-> (Run IO -> IO (Ref IO a)) -> Simulation IO (Ref IO a)
forall a b. (a -> b) -> a -> b
$ \Run IO
r ->
do IORef a
x <- IO (IORef a) -> IO (IORef a)
forall a. IO a -> IO a
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (IO (IORef a) -> IO (IORef a)) -> IO (IORef a) -> IO (IORef a)
forall a b. (a -> b) -> a -> b
$ a -> IO (IORef a)
forall a. a -> IO (IORef a)
newIORef a
a
Ref IO a -> IO (Ref IO a)
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return Ref { refValue :: IORef a
refValue = IORef a
x }
{-# INLINE readRef #-}
readRef :: forall a. Ref IO a -> Event IO a
readRef Ref IO a
r = (Point IO -> IO a) -> Event IO a
forall (m :: * -> *) a. (Point m -> m a) -> Event m a
Event ((Point IO -> IO a) -> Event IO a)
-> (Point IO -> IO a) -> Event IO a
forall a b. (a -> b) -> a -> b
$ \Point IO
p ->
IO a -> IO a
forall a. IO a -> IO a
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (IO a -> IO a) -> IO a -> IO a
forall a b. (a -> b) -> a -> b
$ IORef a -> IO a
forall a. IORef a -> IO a
readIORef (Ref IO a -> IORef a
forall a. Ref IO a -> IORef a
refValue Ref IO a
r)
{-# INLINE writeRef #-}
writeRef :: forall a. Ref IO a -> a -> Event IO ()
writeRef Ref IO a
r a
a = (Point IO -> IO ()) -> Event IO ()
forall (m :: * -> *) a. (Point m -> m a) -> Event m a
Event ((Point IO -> IO ()) -> Event IO ())
-> (Point IO -> IO ()) -> Event IO ()
forall a b. (a -> b) -> a -> b
$ \Point IO
p ->
a
a a -> IO () -> IO ()
forall a b. a -> b -> b
`seq` IO () -> IO ()
forall a. IO a -> IO a
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$ IORef a -> a -> IO ()
forall a. IORef a -> a -> IO ()
writeIORef (Ref IO a -> IORef a
forall a. Ref IO a -> IORef a
refValue Ref IO a
r) a
a
{-# INLINE modifyRef #-}
modifyRef :: forall a. Ref IO a -> (a -> a) -> Event IO ()
modifyRef Ref IO a
r a -> a
f = (Point IO -> IO ()) -> Event IO ()
forall (m :: * -> *) a. (Point m -> m a) -> Event m a
Event ((Point IO -> IO ()) -> Event IO ())
-> (Point IO -> IO ()) -> Event IO ()
forall a b. (a -> b) -> a -> b
$ \Point IO
p ->
do a
a <- IO a -> IO a
forall a. IO a -> IO a
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (IO a -> IO a) -> IO a -> IO a
forall a b. (a -> b) -> a -> b
$ IORef a -> IO a
forall a. IORef a -> IO a
readIORef (Ref IO a -> IORef a
forall a. Ref IO a -> IORef a
refValue Ref IO a
r)
let b :: a
b = a -> a
f a
a
a
b a -> IO () -> IO ()
forall a b. a -> b -> b
`seq` IO () -> IO ()
forall a. IO a -> IO a
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$ IORef a -> a -> IO ()
forall a. IORef a -> a -> IO ()
writeIORef (Ref IO a -> IORef a
forall a. Ref IO a -> IORef a
refValue Ref IO a
r) a
b
{-# INLINE equalRef #-}
equalRef :: forall a. Ref IO a -> Ref IO a -> Bool
equalRef (Ref IORef a
r1) (Ref IORef a
r2) = (IORef a
r1 IORef a -> IORef a -> Bool
forall a. Eq a => a -> a -> Bool
== IORef a
r2)
instance MonadRef0 IO where
{-# SPECIALISE instance MonadRef0 IO #-}
{-# INLINE newRef0 #-}
newRef0 :: forall a. a -> IO (Ref IO a)
newRef0 a
a =
do IORef a
x <- IO (IORef a) -> IO (IORef a)
forall a. IO a -> IO a
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (IO (IORef a) -> IO (IORef a)) -> IO (IORef a) -> IO (IORef a)
forall a b. (a -> b) -> a -> b
$ a -> IO (IORef a)
forall a. a -> IO (IORef a)
newIORef a
a
Ref IO a -> IO (Ref IO a)
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return Ref { refValue :: IORef a
refValue = IORef a
x }