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Split L.H.GM.Monad.Types module

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This commit is contained in:
Daniel Gröber 2016-01-02 00:49:22 +01:00
parent 59193c71cd
commit 699ce178cb
9 changed files with 575 additions and 360 deletions
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32
Language/Haskell/GhcMod/Monad/Compat.hs_h Normal file
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-- ghc-mod: Making Haskell development *more* fun
-- Copyright (C) 2015,2016 Daniel Gröber <dxld ÄT darkboxed DOT org>
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU Affero General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU Affero General Public License for more details.
--
-- You should have received a copy of the GNU Affero General Public License
-- along with this program. If not, see <http://www.gnu.org/licenses/>.
-- MonadUtils of GHC 7.6 or earlier defines its own MonadIO.
-- RWST does not automatically become an instance of MonadIO.
-- MonadUtils of GHC 7.8 or later imports MonadIO in Monad.Control.IO.Class.
-- So, RWST automatically becomes an instance of
#if __GLASGOW_HASKELL__ < 708
-- 'CoreMonad.MonadIO' and 'Control.Monad.IO.Class.MonadIO' are different
-- classes before ghc 7.8
#define DIFFERENT_MONADIO 1
-- RWST doen't have a MonadIO instance before ghc 7.8
#define MONADIO_INSTANCES 1
#endif
#if DIFFERENT_MONADIO
import Data.Monoid (Monoid)
#endif

68
Language/Haskell/GhcMod/Monad/Env.hs Normal file
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-- ghc-mod: Making Haskell development *more* fun
-- Copyright (C) 2015,2016 Daniel Gröber <dxld ÄT darkboxed DOT org>
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU Affero General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU Affero General Public License for more details.
--
-- You should have received a copy of the GNU Affero General Public License
-- along with this program. If not, see <http://www.gnu.org/licenses/>.
{-# LANGUAGE GeneralizedNewtypeDeriving, StandaloneDeriving #-}
{-# LANGUAGE FlexibleInstances, UndecidableInstances #-}
module Language.Haskell.GhcMod.Monad.Env where
import Language.Haskell.GhcMod.Types
import Language.Haskell.GhcMod.Monad.Newtypes
import Control.Monad
import Control.Monad.Trans.Journal (JournalT)
import Control.Monad.State.Strict (StateT(..))
import Control.Monad.Error (ErrorT(..))
import Control.Monad.Reader.Class
import Control.Monad.Trans.Class (MonadTrans(..))
import Prelude
class Monad m => GmEnv m where
gmeAsk :: m GhcModEnv
gmeAsk = gmeReader id
gmeReader :: (GhcModEnv -> a) -> m a
gmeReader f = f `liftM` gmeAsk
gmeLocal :: (GhcModEnv -> GhcModEnv) -> m a -> m a
{-# MINIMAL (gmeAsk | gmeReader), gmeLocal #-}
instance Monad m => GmEnv (GmT m) where
gmeAsk = GmT ask
gmeReader = GmT . reader
gmeLocal f a = GmT $ local f (unGmT a)
instance GmEnv m => GmEnv (GmOutT m) where
gmeAsk = lift gmeAsk
gmeReader = lift . gmeReader
gmeLocal f ma = gmLiftWithInner (\run -> gmeLocal f (run ma))
instance GmEnv m => GmEnv (StateT s m) where
gmeAsk = lift gmeAsk
gmeReader = lift . gmeReader
gmeLocal f ma = gmLiftWithInner (\run -> gmeLocal f (run ma))
instance GmEnv m => GmEnv (JournalT GhcModLog m) where
gmeAsk = lift gmeAsk
gmeReader = lift . gmeReader
gmeLocal f ma = gmLiftWithInner (\run -> gmeLocal f (run ma))
instance GmEnv m => GmEnv (ErrorT GhcModError m) where
gmeAsk = lift gmeAsk
gmeReader = lift . gmeReader
gmeLocal f ma = gmLiftWithInner (\run -> gmeLocal f (run ma))
deriving instance (Monad m, GmEnv (GhcModT m)) => GmEnv (GmlT m)

71
Language/Haskell/GhcMod/Monad/Log.hs Normal file
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-- ghc-mod: Making Haskell development *more* fun
-- Copyright (C) 2015,2016 Daniel Gröber <dxld ÄT darkboxed DOT org>
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU Affero General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU Affero General Public License for more details.
--
-- You should have received a copy of the GNU Affero General Public License
-- along with this program. If not, see <http://www.gnu.org/licenses/>.
{-# LANGUAGE GeneralizedNewtypeDeriving, StandaloneDeriving #-}
{-# LANGUAGE FlexibleInstances, UndecidableInstances #-}
module Language.Haskell.GhcMod.Monad.Log where
import Language.Haskell.GhcMod.Types
import Language.Haskell.GhcMod.Monad.Newtypes
import Control.Monad
import Control.Monad.Trans.Journal (JournalT)
import Control.Monad.Reader (ReaderT(..))
import Control.Monad.State.Strict (StateT(..))
import Control.Monad.Error (Error, ErrorT(..))
import Control.Monad.Trans.Maybe (MaybeT(..))
import Control.Monad.Journal.Class (MonadJournal(..))
import Control.Monad.Trans.Class (MonadTrans(..))
import Prelude
class Monad m => GmLog m where
gmlJournal :: GhcModLog -> m ()
gmlHistory :: m GhcModLog
gmlClear :: m ()
instance Monad m => GmLog (JournalT GhcModLog m) where
gmlJournal = journal
gmlHistory = history
gmlClear = clear
instance Monad m => GmLog (GmT m) where
gmlJournal = GmT . lift . lift . journal
gmlHistory = GmT $ lift $ lift history
gmlClear = GmT $ lift $ lift clear
instance (Monad m, GmLog m) => GmLog (ReaderT r m) where
gmlJournal = lift . gmlJournal
gmlHistory = lift gmlHistory
gmlClear = lift gmlClear
instance (Monad m, GmLog m) => GmLog (StateT s m) where
gmlJournal = lift . gmlJournal
gmlHistory = lift gmlHistory
gmlClear = lift gmlClear
instance (Monad m, GmLog m, Error e) => GmLog (ErrorT e m) where
gmlJournal = lift . gmlJournal
gmlHistory = lift gmlHistory
gmlClear = lift gmlClear
instance (Monad m, GmLog m) => GmLog (MaybeT m) where
gmlJournal = lift . gmlJournal
gmlHistory = lift gmlHistory
gmlClear = lift gmlClear
deriving instance GmLog m => GmLog (GmOutT m)
deriving instance (Monad m, GmLog (GhcModT m)) => GmLog (GmlT m)

198
Language/Haskell/GhcMod/Monad/Newtypes.hs Normal file
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-- ghc-mod: Making Haskell development *more* fun
-- Copyright (C) 2015,2016 Daniel Gröber <dxld ÄT darkboxed DOT org>
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU Affero General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU Affero General Public License for more details.
--
-- You should have received a copy of the GNU Affero General Public License
-- along with this program. If not, see <http://www.gnu.org/licenses/>.
{-# LANGUAGE CPP, GeneralizedNewtypeDeriving, DeriveFunctor #-}
{-# LANGUAGE MultiParamTypeClasses, TypeFamilies, UndecidableInstances #-}
{-# LANGUAGE RankNTypes, FlexibleInstances #-}
module Language.Haskell.GhcMod.Monad.Newtypes where
#include "Compat.hs_h"
import Language.Haskell.GhcMod.Types
import GHC
import Control.Applicative
import Control.Monad
import Control.Monad.Reader (ReaderT(..))
import Control.Monad.Error (ErrorT(..), MonadError(..))
import Control.Monad.State.Strict (StateT(..))
import Control.Monad.Trans.Journal (JournalT)
import Control.Monad.Reader.Class
import Control.Monad.State.Class (MonadState(..))
import Control.Monad.Journal.Class (MonadJournal(..))
import Control.Monad.Trans.Class (MonadTrans(..))
import Control.Monad.Trans.Control
import Control.Monad.Base (MonadBase(..), liftBase)
#if DIFFERENT_MONADIO
import qualified MonadUtils as GHC (MonadIO(..))
#endif
import qualified Control.Monad.IO.Class as MTL
import Data.IORef
import Prelude
type GhcModT m = GmT (GmOutT m)
newtype GmOutT m a = GmOutT {
unGmOutT :: ReaderT GhcModOut m a
} deriving ( Functor
, Applicative
, Alternative
, Monad
, MonadPlus
, MonadTrans
, MTL.MonadIO
#if DIFFERENT_MONADIO
, GHC.MonadIO
#endif
)
newtype GmT m a = GmT {
unGmT :: StateT GhcModState
(ErrorT GhcModError
(JournalT GhcModLog
(ReaderT GhcModEnv m) ) ) a
} deriving ( Functor
, Applicative
, Alternative
, Monad
, MonadPlus
, MTL.MonadIO
#if DIFFERENT_MONADIO
, GHC.MonadIO
#endif
, MonadError GhcModError
)
newtype GmlT m a = GmlT { unGmlT :: GhcModT m a }
deriving ( Functor
, Applicative
, Alternative
, Monad
, MonadPlus
, MTL.MonadIO
#if DIFFERENT_MONADIO
, GHC.MonadIO
#endif
, MonadError GhcModError
)
newtype LightGhc a = LightGhc { unLightGhc :: ReaderT (IORef HscEnv) IO a }
deriving ( Functor
, Applicative
, Monad
, MTL.MonadIO
#if DIFFERENT_MONADIO
, GHC.MonadIO
#endif
)
-- GmOutT ----------------------------------------
instance (MonadBaseControl IO m) => MonadBase IO (GmOutT m) where
liftBase = GmOutT . liftBase
instance (MonadBaseControl IO m) => MonadBaseControl IO (GmOutT m) where
type StM (GmOutT m) a = StM (ReaderT GhcModEnv m) a
liftBaseWith = defaultLiftBaseWith
restoreM = defaultRestoreM
{-# INLINE liftBaseWith #-}
{-# INLINE restoreM #-}
instance MonadTransControl GmOutT where
type StT GmOutT a = StT (ReaderT GhcModEnv) a
liftWith = defaultLiftWith GmOutT unGmOutT
restoreT = defaultRestoreT GmOutT
-- GmlT ------------------------------------------
instance (MonadBaseControl IO m) => MonadBase IO (GmlT m) where
liftBase = GmlT . liftBase
instance (MonadBaseControl IO m) => MonadBaseControl IO (GmlT m) where
type StM (GmlT m) a = StM (GmT m) a
liftBaseWith = defaultLiftBaseWith
restoreM = defaultRestoreM
{-# INLINE liftBaseWith #-}
{-# INLINE restoreM #-}
instance MonadTransControl GmlT where
type StT GmlT a = StT GmT a
liftWith f = GmlT $
liftWith $ \runGm ->
liftWith $ \runEnv ->
f $ \ma -> runEnv $ runGm $ unGmlT ma
restoreT = GmlT . restoreT . restoreT
instance MonadTrans GmlT where
lift = GmlT . lift . lift
-- GmT ------------------------------------------
instance forall r m. MonadReader r m => MonadReader r (GmT m) where
local f ma = gmLiftWithInner (\run -> local f (run ma))
ask = gmLiftInner ask
instance MonadState s m => MonadState s (GmT m) where
get = GmT $ lift $ lift $ lift get
put = GmT . lift . lift . lift . put
state = GmT . lift . lift . lift . state
instance Monad m => MonadJournal GhcModLog (GmT m) where
journal w = GmT $ lift $ lift $ (journal w)
history = GmT $ lift $ lift $ history
clear = GmT $ lift $ lift $ clear
instance (MonadBaseControl IO m) => MonadBase IO (GmT m) where
liftBase = GmT . liftBase
instance (MonadBaseControl IO m) => MonadBaseControl IO (GmT m) where
type StM (GmT m) a =
StM (StateT GhcModState
(ErrorT GhcModError
(JournalT GhcModLog
(ReaderT GhcModEnv m) ) ) ) a
liftBaseWith f = GmT (liftBaseWith $ \runInBase ->
f $ runInBase . unGmT)
restoreM = GmT . restoreM
{-# INLINE liftBaseWith #-}
{-# INLINE restoreM #-}
instance MonadTransControl GmT where
type StT GmT a = (Either GhcModError (a, GhcModState), GhcModLog)
liftWith f = GmT $
liftWith $ \runS ->
liftWith $ \runE ->
liftWith $ \runJ ->
liftWith $ \runR ->
f $ \ma -> runR $ runJ $ runE $ runS $ unGmT ma
restoreT = GmT . restoreT . restoreT . restoreT . restoreT
{-# INLINE liftWith #-}
{-# INLINE restoreT #-}
instance MonadTrans GmT where
lift = GmT . lift . lift . lift . lift
gmLiftInner :: Monad m => m a -> GmT m a
gmLiftInner = GmT . lift . lift . lift . lift
gmLiftWithInner :: (MonadTransControl t, Monad m, Monad (t m))
=> (Run t -> m (StT t a)) -> t m a
gmLiftWithInner f = liftWith f >>= restoreT . return

69
Language/Haskell/GhcMod/Monad/Orphans.hs Normal file
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@ -0,0 +1,69 @@
-- ghc-mod: Making Haskell development *more* fun
-- Copyright (C) 2015,2016 Daniel Gröber <dxld ÄT darkboxed DOT org>
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU Affero General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU Affero General Public License for more details.
--
-- You should have received a copy of the GNU Affero General Public License
-- along with this program. If not, see <http://www.gnu.org/licenses/>.
{-# LANGUAGE CPP #-}
{-# OPTIONS_GHC -fno-warn-orphans #-}
module Language.Haskell.GhcMod.Monad.Orphans where
#include "Compat.hs_h"
import Language.Haskell.GhcMod.Types
import Language.Haskell.GhcMod.Monad.Newtypes
import qualified Control.Monad.IO.Class as MTL
import Control.Monad.Reader (ReaderT(..))
import Control.Monad.State.Strict (StateT(..))
import Control.Monad.Trans.Journal (JournalT)
import Control.Monad.Trans.Maybe (MaybeT(..))
import Control.Monad.Error (Error(..), ErrorT(..))
--------------------------------------------------
-- Miscellaneous instances
#if DIFFERENT_MONADIO
instance MTL.MonadIO m => GHC.MonadIO (ReaderT x m) where
liftIO = MTL.liftIO
instance MTL.MonadIO m => GHC.MonadIO (StateT x m) where
liftIO = MTL.liftIO
instance (Error e, MTL.MonadIO m) => GHC.MonadIO (ErrorT e m) where
liftIO = MTL.liftIO
instance MTL.MonadIO m => GHC.MonadIO (JournalT x m) where
liftIO = MTL.liftIO
instance MTL.MonadIO m => GHC.MonadIO (MaybeT m) where
liftIO = MTL.liftIO
#endif
instance MonadIO IO where
liftIO = id
instance MonadIO m => MonadIO (ReaderT x m) where
liftIO = MTL.liftIO
instance MonadIO m => MonadIO (StateT x m) where
liftIO = MTL.liftIO
instance (Error e, MonadIO m) => MonadIO (ErrorT e m) where
liftIO = MTL.liftIO
instance MonadIO m => MonadIO (JournalT x m) where
liftIO = MTL.liftIO
instance MonadIO m => MonadIO (MaybeT m) where
liftIO = MTL.liftIO
instance MonadIOC m => MonadIO (GmOutT m) where
liftIO = MTL.liftIO
instance MonadIOC m => MonadIO (GmT m) where
liftIO = MTL.liftIO
instance MonadIOC m => MonadIO (GmlT m) where
liftIO = MTL.liftIO
instance MonadIO LightGhc where
liftIO = MTL.liftIO

52
Language/Haskell/GhcMod/Monad/Out.hs Normal file
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@ -0,0 +1,52 @@
-- ghc-mod: Making Haskell development *more* fun
-- Copyright (C) 2015,2016 Daniel Gröber <dxld ÄT darkboxed DOT org>
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU Affero General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU Affero General Public License for more details.
--
-- You should have received a copy of the GNU Affero General Public License
-- along with this program. If not, see <http://www.gnu.org/licenses/>.
{-# LANGUAGE GeneralizedNewtypeDeriving, StandaloneDeriving #-}
{-# LANGUAGE FlexibleInstances, MultiParamTypeClasses, UndecidableInstances #-}
module Language.Haskell.GhcMod.Monad.Out where
import Language.Haskell.GhcMod.Types
import Language.Haskell.GhcMod.Monad.Newtypes
import Control.Monad
import Control.Monad.State.Strict (StateT(..))
import Control.Monad.Trans.Journal (JournalT)
import Control.Monad.Trans.Maybe (MaybeT(..))
import Control.Monad.Reader.Class
import Control.Monad.Trans.Class (MonadTrans(..))
import Prelude
class Monad m => GmOut m where
gmoAsk :: m GhcModOut
instance Monad m => GmOut (GmOutT m) where
gmoAsk = GmOutT ask
instance Monad m => GmOut (GmlT m) where
gmoAsk = GmlT $ lift $ GmOutT ask
instance GmOut m => GmOut (GmT m) where
gmoAsk = lift gmoAsk
instance GmOut m => GmOut (StateT s m) where
gmoAsk = lift gmoAsk
instance GmOut m => GmOut (JournalT w m) where
gmoAsk = lift gmoAsk
instance GmOut m => GmOut (MaybeT m) where
gmoAsk = lift gmoAsk

67
Language/Haskell/GhcMod/Monad/State.hs Normal file
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@ -0,0 +1,67 @@
-- ghc-mod: Making Haskell development *more* fun
-- Copyright (C) 2015,2016 Daniel Gröber <dxld ÄT darkboxed DOT org>
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU Affero General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU Affero General Public License for more details.
--
-- You should have received a copy of the GNU Affero General Public License
-- along with this program. If not, see <http://www.gnu.org/licenses/>.
{-# LANGUAGE GeneralizedNewtypeDeriving, StandaloneDeriving #-}
{-# LANGUAGE FlexibleInstances, UndecidableInstances #-}
module Language.Haskell.GhcMod.Monad.State where
import Language.Haskell.GhcMod.Types
import Language.Haskell.GhcMod.Monad.Newtypes
import Control.Monad
import Control.Monad.State.Strict (StateT(..))
import Control.Monad.Trans.Maybe (MaybeT(..))
import Control.Monad.State.Class (MonadState(..))
import Control.Monad.Trans.Class (MonadTrans(..))
import Prelude
class Monad m => GmState m where
gmsGet :: m GhcModState
gmsGet = gmsState (\s -> (s, s))
gmsPut :: GhcModState -> m ()
gmsPut s = gmsState (\_ -> ((), s))
gmsState :: (GhcModState -> (a, GhcModState)) -> m a
gmsState f = do
s <- gmsGet
let ~(a, s') = f s
gmsPut s'
return a
{-# MINIMAL gmsState | gmsGet, gmsPut #-}
instance GmState m => GmState (StateT s m) where
gmsGet = lift gmsGet
gmsPut = lift . gmsPut
gmsState = lift . gmsState
instance Monad m => GmState (StateT GhcModState m) where
gmsGet = get
gmsPut = put
gmsState = state
instance Monad m => GmState (GmT m) where
gmsGet = GmT get
gmsPut = GmT . put
gmsState = GmT . state
instance GmState m => GmState (MaybeT m) where
gmsGet = MaybeT $ Just `liftM` gmsGet
gmsPut = MaybeT . (Just `liftM`) . gmsPut
gmsState = MaybeT . (Just `liftM`) . gmsState
deriving instance (Monad m, GmState (GhcModT m)) => GmState (GmlT m)

372
Language/Haskell/GhcMod/Monad/Types.hs
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@ -62,21 +62,17 @@ module Language.Haskell.GhcMod.Monad.Types (
, gmlSetSession
) where
-- MonadUtils of GHC 7.6 or earlier defines its own MonadIO.
-- RWST does not automatically become an instance of MonadIO.
-- MonadUtils of GHC 7.8 or later imports MonadIO in Monad.Control.IO.Class.
-- So, RWST automatically becomes an instance of
#if __GLASGOW_HASKELL__ < 708
-- 'CoreMonad.MonadIO' and 'Control.Monad.IO.Class.MonadIO' are different
-- classes before ghc 7.8
#define DIFFERENT_MONADIO 1
-- RWST doen't have a MonadIO instance before ghc 7.8
#define MONADIO_INSTANCES 1
#endif
#include "Compat.hs_h"
import Language.Haskell.GhcMod.Types
import Language.Haskell.GhcMod.Monad.Env
import Language.Haskell.GhcMod.Monad.State
import Language.Haskell.GhcMod.Monad.Log
import Language.Haskell.GhcMod.Monad.Out
import Language.Haskell.GhcMod.Monad.Newtypes
import Language.Haskell.GhcMod.Monad.Orphans ()
import GHC
import DynFlags
import Exception
@ -86,25 +82,12 @@ import Control.Applicative
import Control.Monad
import Control.Monad.Reader (ReaderT(..))
import Control.Monad.Error (ErrorT(..), MonadError(..))
import Control.Monad.State.Strict (StateT(..))
import Control.Monad.Trans.Journal (JournalT)
import Control.Monad.Trans.Maybe (MaybeT(..))
import Control.Monad.Base (MonadBase(..), liftBase)
import Control.Monad.Trans.Control
import Control.Monad.Reader.Class
import Control.Monad.Writer.Class
import Control.Monad.State.Class (MonadState(..))
import Control.Monad.Journal.Class (MonadJournal(..))
import Control.Monad.Trans.Class (MonadTrans(..))
import Control.Monad.Error (Error(..))
import qualified Control.Monad.IO.Class as MTL
#if DIFFERENT_MONADIO
import Data.Monoid (Monoid)
#endif
import qualified Data.Map as M
import Data.Maybe
@ -112,339 +95,8 @@ import Data.Monoid
import Data.IORef
import Prelude
import qualified MonadUtils as GHC (MonadIO(..))
type GhcModT m = GmT (GmOutT m)
newtype GmOutT m a = GmOutT {
unGmOutT :: ReaderT GhcModOut m a
} deriving ( Functor
, Applicative
, Alternative
, Monad
, MonadPlus
, MonadTrans
, MTL.MonadIO
#if DIFFERENT_MONADIO
, GHC.MonadIO
#endif
, GmLog
)
newtype GmT m a = GmT {
unGmT :: StateT GhcModState
(ErrorT GhcModError
(JournalT GhcModLog
(ReaderT GhcModEnv m) ) ) a
} deriving ( Functor
, Applicative
, Alternative
, Monad
, MonadPlus
, MTL.MonadIO
#if DIFFERENT_MONADIO
, GHC.MonadIO
#endif
, MonadError GhcModError
)
newtype GmlT m a = GmlT { unGmlT :: GhcModT m a }
deriving ( Functor
, Applicative
, Alternative
, Monad
, MonadPlus
, MTL.MonadIO
#if DIFFERENT_MONADIO
, GHC.MonadIO
#endif
, MonadError GhcModError
, GmEnv
, GmState
, GmLog
)
newtype LightGhc a = LightGhc { unLightGhc :: ReaderT (IORef HscEnv) IO a }
deriving ( Functor
, Applicative
, Monad
, MTL.MonadIO
#if DIFFERENT_MONADIO
, GHC.MonadIO
#endif
)
--------------------------------------------------
-- Miscellaneous instances
#if DIFFERENT_MONADIO
instance MTL.MonadIO m => GHC.MonadIO (ReaderT x m) where
liftIO = MTL.liftIO
instance MTL.MonadIO m => GHC.MonadIO (StateT x m) where
liftIO = MTL.liftIO
instance (Error e, MTL.MonadIO m) => GHC.MonadIO (ErrorT e m) where
liftIO = MTL.liftIO
instance MTL.MonadIO m => GHC.MonadIO (JournalT x m) where
liftIO = MTL.liftIO
instance MTL.MonadIO m => GHC.MonadIO (MaybeT m) where
liftIO = MTL.liftIO
#endif
instance MonadIO IO where
liftIO = id
instance MonadIO m => MonadIO (ReaderT x m) where
liftIO = MTL.liftIO
instance MonadIO m => MonadIO (StateT x m) where
liftIO = MTL.liftIO
instance (Error e, MonadIO m) => MonadIO (ErrorT e m) where
liftIO = MTL.liftIO
instance MonadIO m => MonadIO (JournalT x m) where
liftIO = MTL.liftIO
instance MonadIO m => MonadIO (MaybeT m) where
liftIO = MTL.liftIO
instance MonadIOC m => MonadIO (GmOutT m) where
liftIO = MTL.liftIO
instance MonadIOC m => MonadIO (GmT m) where
liftIO = MTL.liftIO
instance MonadIOC m => MonadIO (GmlT m) where
liftIO = MTL.liftIO
instance MonadIO LightGhc where
liftIO = MTL.liftIO
instance MonadTrans GmT where
lift = GmT . lift . lift . lift . lift
instance MonadTrans GmlT where
lift = GmlT . lift . lift
--------------------------------------------------
-- Gm Classes
type Gm m = (GmEnv m, GmState m, GmLog m, GmOut m)
-- GmEnv -----------------------------------------
class Monad m => GmEnv m where
gmeAsk :: m GhcModEnv
gmeAsk = gmeReader id
gmeReader :: (GhcModEnv -> a) -> m a
gmeReader f = f `liftM` gmeAsk
gmeLocal :: (GhcModEnv -> GhcModEnv) -> m a -> m a
{-# MINIMAL (gmeAsk | gmeReader), gmeLocal #-}
instance Monad m => GmEnv (GmT m) where
gmeAsk = GmT ask
gmeReader = GmT . reader
gmeLocal f a = GmT $ local f (unGmT a)
instance GmEnv m => GmEnv (GmOutT m) where
gmeAsk = lift gmeAsk
gmeReader = lift . gmeReader
gmeLocal f ma = gmLiftWithInner (\run -> gmeLocal f (run ma))
instance GmEnv m => GmEnv (StateT s m) where
gmeAsk = lift gmeAsk
gmeReader = lift . gmeReader
gmeLocal f ma = gmLiftWithInner (\run -> gmeLocal f (run ma))
instance GmEnv m => GmEnv (JournalT GhcModLog m) where
gmeAsk = lift gmeAsk
gmeReader = lift . gmeReader
gmeLocal f ma = gmLiftWithInner (\run -> gmeLocal f (run ma))
instance GmEnv m => GmEnv (ErrorT GhcModError m) where
gmeAsk = lift gmeAsk
gmeReader = lift . gmeReader
gmeLocal f ma = gmLiftWithInner (\run -> gmeLocal f (run ma))
-- GmState ---------------------------------------
class Monad m => GmState m where
gmsGet :: m GhcModState
gmsGet = gmsState (\s -> (s, s))
gmsPut :: GhcModState -> m ()
gmsPut s = gmsState (\_ -> ((), s))
gmsState :: (GhcModState -> (a, GhcModState)) -> m a
gmsState f = do
s <- gmsGet
let ~(a, s') = f s
gmsPut s'
return a
{-# MINIMAL gmsState | gmsGet, gmsPut #-}
instance GmState m => GmState (StateT s m) where
gmsGet = lift gmsGet
gmsPut = lift . gmsPut
gmsState = lift . gmsState
instance Monad m => GmState (StateT GhcModState m) where
gmsGet = get
gmsPut = put
gmsState = state
instance Monad m => GmState (GmT m) where
gmsGet = GmT get
gmsPut = GmT . put
gmsState = GmT . state
instance GmState m => GmState (MaybeT m) where
gmsGet = MaybeT $ Just `liftM` gmsGet
gmsPut = MaybeT . (Just `liftM`) . gmsPut
gmsState = MaybeT . (Just `liftM`) . gmsState
-- GmLog -----------------------------------------
class Monad m => GmLog m where
gmlJournal :: GhcModLog -> m ()
gmlHistory :: m GhcModLog
gmlClear :: m ()
instance Monad m => GmLog (JournalT GhcModLog m) where
gmlJournal = journal
gmlHistory = history
gmlClear = clear
instance Monad m => GmLog (GmT m) where
gmlJournal = GmT . lift . lift . journal
gmlHistory = GmT $ lift $ lift history
gmlClear = GmT $ lift $ lift clear
instance (Monad m, GmLog m) => GmLog (ReaderT r m) where
gmlJournal = lift . gmlJournal
gmlHistory = lift gmlHistory
gmlClear = lift gmlClear
instance (Monad m, GmLog m) => GmLog (StateT s m) where
gmlJournal = lift . gmlJournal
gmlHistory = lift gmlHistory
gmlClear = lift gmlClear
instance (Monad m, GmLog m) => GmLog (MaybeT m) where
gmlJournal = lift . gmlJournal
gmlHistory = lift gmlHistory
gmlClear = lift gmlClear
-- GmOut -----------------------------------------
class Monad m => GmOut m where
gmoAsk :: m GhcModOut
instance Monad m => GmOut (GmOutT m) where
gmoAsk = GmOutT ask
instance Monad m => GmOut (GmlT m) where
gmoAsk = GmlT $ lift $ GmOutT ask
instance GmOut m => GmOut (GmT m) where
gmoAsk = lift gmoAsk
instance GmOut m => GmOut (StateT s m) where
gmoAsk = lift gmoAsk
instance GmOut m => GmOut (JournalT w m) where
gmoAsk = lift gmoAsk
instance GmOut m => GmOut (MaybeT m) where
gmoAsk = lift gmoAsk
instance Monad m => MonadJournal GhcModLog (GmT m) where
journal !w = GmT $ lift $ lift $ (journal w)
history = GmT $ lift $ lift $ history
clear = GmT $ lift $ lift $ clear
instance forall r m. MonadReader r m => MonadReader r (GmT m) where
local f ma = gmLiftWithInner (\run -> local f (run ma))
ask = gmLiftInner ask
instance (Monoid w, MonadWriter w m) => MonadWriter w (GmT m) where
tell = gmLiftInner . tell
listen ma =
liftWith (\run -> listen (run ma)) >>= \(sta, w) ->
flip (,) w `liftM` restoreT (return sta)
pass maww = maww >>= gmLiftInner . pass . return
instance MonadState s m => MonadState s (GmT m) where
get = GmT $ lift $ lift $ lift get
put = GmT . lift . lift . lift . put
state = GmT . lift . lift . lift . state
--------------------------------------------------
-- monad-control instances
-- GmOutT ----------------------------------------
instance (MonadBaseControl IO m) => MonadBase IO (GmOutT m) where
liftBase = GmOutT . liftBase
instance (MonadBaseControl IO m) => MonadBaseControl IO (GmOutT m) where
type StM (GmOutT m) a = StM (ReaderT GhcModEnv m) a
liftBaseWith = defaultLiftBaseWith
restoreM = defaultRestoreM
{-# INLINE liftBaseWith #-}
{-# INLINE restoreM #-}
instance MonadTransControl GmOutT where
type StT GmOutT a = StT (ReaderT GhcModEnv) a
liftWith = defaultLiftWith GmOutT unGmOutT
restoreT = defaultRestoreT GmOutT
-- GmlT ------------------------------------------
instance (MonadBaseControl IO m) => MonadBase IO (GmlT m) where
liftBase = GmlT . liftBase
instance (MonadBaseControl IO m) => MonadBaseControl IO (GmlT m) where
type StM (GmlT m) a = StM (GmT m) a
liftBaseWith = defaultLiftBaseWith
restoreM = defaultRestoreM
{-# INLINE liftBaseWith #-}
{-# INLINE restoreM #-}
instance MonadTransControl GmlT where
type StT GmlT a = StT GmT a
liftWith f = GmlT $
liftWith $ \runGm ->
liftWith $ \runEnv ->
f $ \ma -> runEnv $ runGm $ unGmlT ma
restoreT = GmlT . restoreT . restoreT
-- GmT ------------------------------------------
instance (MonadBaseControl IO m) => MonadBase IO (GmT m) where
liftBase = GmT . liftBase
instance (MonadBaseControl IO m) => MonadBaseControl IO (GmT m) where
type StM (GmT m) a =
StM (StateT GhcModState
(ErrorT GhcModError
(JournalT GhcModLog
(ReaderT GhcModEnv m) ) ) ) a
liftBaseWith f = GmT (liftBaseWith $ \runInBase ->
f $ runInBase . unGmT)
restoreM = GmT . restoreM
{-# INLINE liftBaseWith #-}
{-# INLINE restoreM #-}
instance MonadTransControl GmT where
type StT GmT a = (Either GhcModError (a, GhcModState), GhcModLog)
liftWith f = GmT $
liftWith $ \runS ->
liftWith $ \runE ->
liftWith $ \runJ ->
liftWith $ \runR ->
f $ \ma -> runR $ runJ $ runE $ runS $ unGmT ma
restoreT = GmT . restoreT . restoreT . restoreT . restoreT
{-# INLINE liftWith #-}
{-# INLINE restoreT #-}
gmLiftInner :: Monad m => m a -> GmT m a
gmLiftInner = GmT . lift . lift . lift . lift
gmLiftWithInner :: (MonadTransControl t, Monad m, Monad (t m))
=> (Run t -> m (StT t a)) -> t m a
gmLiftWithInner f = liftWith f >>= restoreT . return
--------------------------------------------------
-- GHC API instances -----------------------------
@ -463,16 +115,16 @@ instance (MonadIO m, MonadBaseControl IO m) => GhcMonad (GmlT m) where
gmlGetSession :: (MonadIO m, MonadBaseControl IO m) => GmlT m HscEnv
gmlGetSession = do
ref <- gmgsSession . fromJust . gmGhcSession <$> gmsGet
GHC.liftIO $ readIORef ref
liftIO $ readIORef ref
gmlSetSession :: (MonadIO m, MonadBaseControl IO m) => HscEnv -> GmlT m ()
gmlSetSession a = do
ref <- gmgsSession . fromJust . gmGhcSession <$> gmsGet
GHC.liftIO $ flip writeIORef a ref
liftIO $ flip writeIORef a ref
instance GhcMonad LightGhc where
getSession = (GHC.liftIO . readIORef) =<< LightGhc ask
setSession a = (GHC.liftIO . flip writeIORef a) =<< LightGhc ask
getSession = (liftIO . readIORef) =<< LightGhc ask
setSession a = (liftIO . flip writeIORef a) =<< LightGhc ask
#if __GLASGOW_HASKELL__ >= 706
instance (MonadIO m, MonadBaseControl IO m) => HasDynFlags (GmlT m) where

6
ghc-mod.cabal
View File

@ -131,6 +131,12 @@ Library
Language.Haskell.GhcMod.Logging
Language.Haskell.GhcMod.Modules
Language.Haskell.GhcMod.Monad
Language.Haskell.GhcMod.Monad.Env
Language.Haskell.GhcMod.Monad.Log
Language.Haskell.GhcMod.Monad.Newtypes
Language.Haskell.GhcMod.Monad.Orphans
Language.Haskell.GhcMod.Monad.Out
Language.Haskell.GhcMod.Monad.State
Language.Haskell.GhcMod.Monad.Types
Language.Haskell.GhcMod.Output
Language.Haskell.GhcMod.PathsAndFiles