summaryrefslogtreecommitdiffstats
path: root/XMonad/Core.hs
diff options
context:
space:
mode:
Diffstat (limited to 'XMonad/Core.hs')
-rw-r--r--XMonad/Core.hs17
1 files changed, 9 insertions, 8 deletions
diff --git a/XMonad/Core.hs b/XMonad/Core.hs
index b0713d7..f8f337b 100644
--- a/XMonad/Core.hs
+++ b/XMonad/Core.hs
@@ -34,7 +34,7 @@ module XMonad.Core (
import XMonad.StackSet hiding (modify)
import Prelude hiding ( catch )
-import Control.Exception (catch, try, bracket, throw, finally, Exception(ExitException))
+import Control.Exception.Extensible (catch, fromException, try, bracket, throw, finally, SomeException(..))
import Control.Applicative
import Control.Monad.State
import Control.Monad.Reader
@@ -171,9 +171,9 @@ catchX :: X a -> X a -> X a
catchX job errcase = do
st <- get
c <- ask
- (a, s') <- io $ runX c st job `catch` \e -> case e of
- ExitException {} -> throw e
- _ -> do hPrint stderr e; runX c st errcase
+ (a, s') <- io $ runX c st job `catch` \e -> case fromException e of
+ Just x -> throw e `const` (x `asTypeOf` ExitSuccess)
+ _ -> do hPrint stderr e; runX c st errcase
put s'
return a
@@ -386,7 +386,7 @@ io = liftIO
-- | Lift an 'IO' action into the 'X' monad. If the action results in an 'IO'
-- exception, log the exception to stderr and continue normal execution.
catchIO :: MonadIO m => IO () -> m ()
-catchIO f = io (f `catch` \e -> hPrint stderr e >> hFlush stderr)
+catchIO f = io (f `catch` \(SomeException e) -> hPrint stderr e >> hFlush stderr)
-- | spawn. Launch an external application. Specifically, it double-forks and
-- runs the 'String' you pass as a command to /bin/sh.
@@ -476,11 +476,11 @@ recompile force = io $ do
return ()
return (status == ExitSuccess)
else return True
- where getModTime f = catch (Just <$> getModificationTime f) (const $ return Nothing)
+ where getModTime f = catch (Just <$> getModificationTime f) (\(SomeException _) -> return Nothing)
isSource = flip elem [".hs",".lhs",".hsc"]
allFiles t = do
let prep = map (t</>) . Prelude.filter (`notElem` [".",".."])
- cs <- prep <$> catch (getDirectoryContents t) (\_ -> return [])
+ cs <- prep <$> catch (getDirectoryContents t) (\(SomeException _) -> return [])
ds <- filterM doesDirectoryExist cs
concat . ((cs \\ ds):) <$> mapM allFiles ds
@@ -503,7 +503,8 @@ installSignalHandlers :: MonadIO m => m ()
installSignalHandlers = io $ do
installHandler openEndedPipe Ignore Nothing
installHandler sigCHLD Ignore Nothing
- try $ fix $ \more -> do
+ (try :: IO a -> IO (Either SomeException a))
+ $ fix $ \more -> do
x <- getAnyProcessStatus False False
when (isJust x) more
return ()