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authorGravatar Joey Hess <joey@kitenet.net>2012-09-17 00:18:07 -0400
committerGravatar Joey Hess <joey@kitenet.net>2012-09-17 00:18:07 -0400
commite8188ea611e4c9223492203c0ec0370c3c45b225 (patch)
tree2a078993be28d1dedc38f8ab9ad193eea0ecf90e /Utility/Exception.hs
parentba744c84a4f683e50bf4c9b8c388e3a611f7fb91 (diff)
flip catchDefaultIO
Diffstat (limited to 'Utility/Exception.hs')
-rw-r--r--Utility/Exception.hs8
1 files changed, 4 insertions, 4 deletions
diff --git a/Utility/Exception.hs b/Utility/Exception.hs
index a6726945c..8b6077743 100644
--- a/Utility/Exception.hs
+++ b/Utility/Exception.hs
@@ -13,15 +13,15 @@ import Control.Applicative
{- Catches IO errors and returns a Bool -}
catchBoolIO :: IO Bool -> IO Bool
-catchBoolIO a = catchDefaultIO a False
+catchBoolIO a = catchDefaultIO False a
{- Catches IO errors and returns a Maybe -}
catchMaybeIO :: IO a -> IO (Maybe a)
-catchMaybeIO a = catchDefaultIO (Just <$> a) Nothing
+catchMaybeIO a = catchDefaultIO Nothing $ Just <$> a
{- Catches IO errors and returns a default value. -}
-catchDefaultIO :: IO a -> a -> IO a
-catchDefaultIO a def = catchIO a (const $ return def)
+catchDefaultIO :: a -> IO a -> IO a
+catchDefaultIO def a = catchIO a (const $ return def)
{- Catches IO errors and returns the error message. -}
catchMsgIO :: IO a -> IO (Either String a)