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make Query a MonadIO

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Lukas Mai
2007-11-28 19:51:26 +00:00
parent 39eccc350c
commit 6908189698
1 changed files with 1 additions and 1 deletions
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XMonad/Core.hs
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@@ -123,7 +123,7 @@ instance (Monoid a) => Monoid (X a) where
mappend = liftM2 mappend
type ManageHook = Query (Endo WindowSet)
newtype Query a = Query (ReaderT Window X a) deriving (Functor, Monad, MonadReader Window)
newtype Query a = Query (ReaderT Window X a) deriving (Functor, Monad, MonadReader Window, MonadIO)
runManageHook :: ManageHook -> Window -> X (WindowSet -> WindowSet)
runManageHook (Query m) w = appEndo <$> runReaderT m w