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This commit is contained in:
Kazu Yamamoto 2014-07-03 14:26:39 +09:00
parent 640140608e
commit f2e20e3279
1 changed files with 7 additions and 1 deletions
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8
Language/Haskell/GhcMod/Monad.hs
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@ -26,12 +26,18 @@ import Exception
import GHC
import GHC.Paths (libdir)
import GhcMonad
import MonadUtils
#if __GLASGOW_HASKELL__ <= 702
import HscTypes
#endif
-- 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 MonadIO.
import MonadUtils
#if __GLASGOW_HASKELL__ < 708
-- To make RWST an instance of MonadIO.
import Control.Monad.Trans.Class (lift)
import Data.Monoid (Monoid)
#endif