Merge branch 'new-monad-control'

This commit is contained in:
Joey Hess 2011-12-24 23:02:42 -04:00
commit 6d4382a89e
3 changed files with 19 additions and 8 deletions

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@ -5,7 +5,7 @@
- Licensed under the GNU GPL version 3 or higher.
-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
{-# LANGUAGE GeneralizedNewtypeDeriving, TypeFamilies, MultiParamTypeClasses #-}
module Annex (
Annex,
@ -22,8 +22,9 @@ module Annex (
fromRepo,
) where
import Control.Monad.IO.Control
import Control.Monad.State
import Control.Monad.Trans.Control (StM, MonadBaseControl, liftBaseWith, restoreM)
import Control.Monad.Base (liftBase, MonadBase)
import Common
import qualified Git
@ -45,12 +46,22 @@ newtype Annex a = Annex { runAnnex :: StateT AnnexState IO a }
deriving (
Monad,
MonadIO,
MonadControlIO,
MonadState AnnexState,
Functor,
Applicative
)
instance MonadBase IO Annex where
liftBase = Annex . liftBase
instance MonadBaseControl IO Annex where
newtype StM Annex a = StAnnex (StM (StateT AnnexState IO) a)
liftBaseWith f = Annex $ liftBaseWith $ \runInIO ->
f $ liftM StAnnex . runInIO . runAnnex
restoreM = Annex . restoreM . unStAnnex
where
unStAnnex (StAnnex st) = st
data OutputType = NormalOutput | QuietOutput | JSONOutput
-- internal state storage

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@ -11,8 +11,8 @@ module Annex.Exception (
throw,
) where
import Control.Exception.Control (handle)
import Control.Monad.IO.Control (liftIOOp)
import Control.Exception.Lifted (handle)
import Control.Monad.Trans.Control (liftBaseOp)
import Control.Exception hiding (handle, throw)
import Common.Annex
@ -20,7 +20,7 @@ import Common.Annex
{- Runs an Annex action, with setup and cleanup both in the IO monad. -}
bracketIO :: IO c -> (c -> IO b) -> Annex a -> Annex a
bracketIO setup cleanup go =
liftIOOp (Control.Exception.bracket setup cleanup) (const go)
liftBaseOp (Control.Exception.bracket setup cleanup) (const go)
{- Throws an exception in the Annex monad. -}
throw :: Control.Exception.Exception e => e -> Annex a

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@ -30,8 +30,8 @@ Executable git-annex
Main-Is: git-annex.hs
Build-Depends: MissingH, hslogger, directory, filepath,
unix, containers, utf8-string, network, mtl, bytestring, old-locale, time,
pcre-light, extensible-exceptions, dataenc, SHA, process, hS3, HTTP,
base < 5, monad-control < 0.3, json
pcre-light, extensible-exceptions, dataenc, SHA, process, hS3, json, HTTP,
base < 5, monad-control, transformers-base, lifted-base
Executable git-annex-shell
Main-Is: git-annex-shell.hs