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