Replace uses of the old catch function with the new one

compiler/coreSyn/MkExternalCore.lhs

@@ -27,6 +27,7 @@ import Encoding
 import ForeignCall
 import DynFlags
 import FastString
+import Exception
 
 import Data.Char
 import System.IO
@@ -35,10 +36,10 @@ emitExternalCore :: DynFlags -> CgGuts -> IO ()
 emitExternalCore dflags cg_guts
  | dopt Opt_EmitExternalCore dflags
  = (do handle <- openFile corename WriteMode
-       hPutStrLn handle (show (mkExternalCore cg_guts))      
+       hPutStrLn handle (show (mkExternalCore cg_guts))
        hClose handle)
-   `catch` (\_ -> pprPanic "Failed to open or write external core output file"
-                           (text corename))
+   `catchIO` (\_ -> pprPanic "Failed to open or write external core output file"
+                             (text corename))
    where corename = extCoreName dflags
 emitExternalCore _ _
  | otherwise

compiler/main/SysTools.lhs

@@ -45,8 +45,8 @@ import ErrUtils
 import Panic
 import Util
 import DynFlags
-
 import Exception
+
 import Data.IORef
 import Control.Monad
 import System.Exit
@@ -528,7 +528,7 @@ getTempDir dflags@(DynFlags{tmpDir=tmp_dir})
                                writeIORef ref mapping'
                                debugTraceMsg dflags 2 (ptext (sLit "Created temporary directory:") <+> text dirname)
                                return dirname
-                            `IO.catch` \e ->
+                            `catchIO` \e ->
                                     if isAlreadyExistsError e
                                     then mkTempDir (x+1)
                                     else ioError e
@@ -567,7 +567,7 @@ removeTmpFiles dflags fs
     (non_deletees, deletees) = partition isHaskellUserSrcFilename fs
 
 removeWith :: DynFlags -> (FilePath -> IO ()) -> FilePath -> IO ()
-removeWith dflags remover f = remover f `IO.catch`
+removeWith dflags remover f = remover f `catchIO`
   (\e ->
    let msg = if isDoesNotExistError e
              then ptext (sLit "Warning: deleting non-existent") <+> text f
@@ -604,7 +604,7 @@ runSomethingFiltered dflags filter_fn phase_name pgm args mb_env = do
 #endif
   traceCmd dflags phase_name cmdLine $ do
   (exit_code, doesn'tExist) <-
-     IO.catch (do
+     catchIO (do
          rc <- builderMainLoop dflags filter_fn pgm real_args mb_env
          case rc of
            ExitSuccess{} -> return (rc, False)
@@ -756,7 +756,7 @@ traceCmd dflags phase_name cmd_line action
         ; unless (dopt Opt_DryRun dflags) $ do {
 
            -- And run it!
-        ; action `IO.catch` handle_exn verb
+        ; action `catchIO` handle_exn verb
         }}
   where
     handle_exn _verb exn = do { debugTraceMsg dflags 2 (char '\n')

compiler/parser/ParserCoreUtils.hs

 module ParserCoreUtils where
 
+import Exception
 import System.IO
 
 data ParseResult a = OkP a | FailP String
@@ -19,7 +20,7 @@ failP s s' _ = FailP (s ++ ":" ++ s')
 
 getCoreModuleName :: FilePath -> IO String
 getCoreModuleName fpath = 
-   catch (do 
+   catchIO (do
      h  <- openFile fpath ReadMode
      ls <- hGetContents h
      let mo = findMod (words ls)

compiler/utils/Util.lhs

@@ -86,6 +86,7 @@ module Util (
 
 #include "HsVersions.h"
 
+import Exception
 import Panic
 
 import Data.Data
@@ -99,7 +100,7 @@ import FastTypes
 #endif
 
 import Control.Monad    ( unless )
-import System.IO.Error as IO ( catch, isDoesNotExistError )
+import System.IO.Error as IO ( isDoesNotExistError )
 import System.Directory ( doesDirectoryExist, createDirectory,
                           getModificationTime )
 import System.FilePath
@@ -939,9 +940,9 @@ doesDirNameExist fpath = case takeDirectory fpath of
 modificationTimeIfExists :: FilePath -> IO (Maybe ClockTime)
 modificationTimeIfExists f = do
   (do t <- getModificationTime f; return (Just t))
-        `IO.catch` \e -> if isDoesNotExistError e
-                         then return Nothing
-                         else ioError e
+        `catchIO` \e -> if isDoesNotExistError e
+                        then return Nothing
+                        else ioError e
 
 -- split a string at the last character where 'pred' is True,
 -- returning a pair of strings. The first component holds the string

ghc/InteractiveUI.hs

@@ -280,7 +280,7 @@ helpText =
 findEditor :: IO String
 findEditor = do
   getEnv "EDITOR" 
-    `IO.catch` \_ -> do
+    `catchIO` \_ -> do
 #if mingw32_HOST_OS
         win <- System.Win32.getWindowsDirectory
         return (win </> "notepad.exe")
@@ -413,7 +413,7 @@ runGHCi paths maybe_exprs = do
            Right hdl ->
                do runInputTWithPrefs defaultPrefs defaultSettings $
                             runCommands $ fileLoop hdl
-                  liftIO (hClose hdl `IO.catch` \_ -> return ())
+                  liftIO (hClose hdl `catchIO` \_ -> return ())
      where
       getDirectory f = case takeDirectory f of "" -> "."; d -> d
 

utils/ghc-pkg/Main.hs

@@ -724,7 +724,7 @@ updateDBCache verbosity db = do
   when (verbosity > Normal) $
       putStrLn ("writing cache " ++ filename)
   writeBinaryFileAtomic filename (map convertPackageInfoOut (packages db))
-    `catch` \e ->
+    `catchIO` \e ->
       if isPermissionError e
       then die (filename ++ ": you don't have permission to modify this file")
       else ioError e
@@ -1138,7 +1138,7 @@ writeNewConfig verbosity filename ipis = do
                      $ map (show . convertPackageInfoOut) ipis
       fileContents = "[" ++ shown ++ "\n]"
   writeFileUtf8Atomic filename fileContents
-    `catch` \e ->
+    `catchIO` \e ->
       if isPermissionError e
       then die (filename ++ ": you don't have permission to modify this file")
       else ioError e
@@ -1374,7 +1374,7 @@ findModules paths =
   return (concat mms)
 
 searchDir path prefix = do
-  fs <- getDirectoryEntries path `catch` \_ -> return []
+  fs <- getDirectoryEntries path `catchIO` \_ -> return []
   searchEntries path prefix fs
 
 searchEntries path prefix [] = return []
@@ -1417,7 +1417,7 @@ expandEnvVars str0 force = go str0 ""
 
    lookupEnvVar :: String -> IO String
    lookupEnvVar nm =
-        catch (System.Environment.getEnv nm)
+        catchIO (System.Environment.getEnv nm)
            (\ _ -> do dieOrForceAll force ("Unable to expand variable " ++
                                         show nm)
                       return "")
@@ -1533,10 +1533,10 @@ installSignalHandlers = do
 #if mingw32_HOST_OS || mingw32_TARGET_OS
 throwIOIO :: Exception.IOException -> IO a
 throwIOIO = Exception.throwIO
+#endif
 
 catchIO :: IO a -> (Exception.IOException -> IO a) -> IO a
 catchIO = Exception.catch
-#endif
 
 catchError :: IO a -> (String -> IO a) -> IO a
 catchError io handler = io `Exception.catch` handler'
@@ -1624,5 +1624,5 @@ readUTF8File file = do
 -- removeFileSave doesn't throw an exceptions, if the file is already deleted
 removeFileSafe :: FilePath -> IO ()
 removeFileSafe fn =
-  removeFile fn `catch` \ e ->
+  removeFile fn `catchIO` \ e ->
     when (not $ isDoesNotExistError e) $ ioError e

utils/hpc/HpcUtils.hs

@@ -23,9 +23,9 @@ readFileFromPath :: (String -> IO String) -> String -> [String] -> IO String
 readFileFromPath _ filename@('/':_) _ = readFile filename
 readFileFromPath err filename path0 = readTheFile path0
   where
-	readTheFile [] = err $ "could not find " ++ show filename 
-			         ++ " in path " ++ show path0
-	readTheFile (dir:dirs) = 
-		catch (do str <- readFile (dir ++ "/" ++ filename) 
-			  return str) 
-		      (\ _ -> readTheFile dirs)
+        readTheFile [] = err $ "could not find " ++ show filename
+                                 ++ " in path " ++ show path0
+        readTheFile (dir:dirs) =
+                catchIO (do str <- readFile (dir ++ "/" ++ filename)
+                            return str)
+                        (\ _ -> readTheFile dirs)