[project @ 2000-12-20 10:33:25 by simonmar]

[ghc-hetmet.git] / ghc / compiler / main / Main.hs

diff --git a/ghc/compiler/main/Main.hs b/ghc/compiler/main/Main.hs
index 6f7be2f..d0f0ffd 100644 (file)
--- a/ghc/compiler/main/Main.hs
+++ b/ghc/compiler/main/Main.hs
@@ -1,6 +1,6 @@
-{-# OPTIONS -W -fno-warn-incomplete-patterns #-}
+{-# OPTIONS -fno-warn-incomplete-patterns #-}
 -----------------------------------------------------------------------------
--- $Id: Main.hs,v 1.34 2000/11/24 17:02:02 simonpj Exp $
+-- $Id: Main.hs,v 1.41 2000/12/20 10:33:25 simonmar Exp $
 --
 -- GHC Driver program
 --
@@ -84,20 +84,24 @@ import Maybe
 -- No more "Enter your Haskell program, end with ^D (on a line of its own):"
 -- consistency checking removed (may do this properly later)
 -- removed -noC
--- no hi diffs (could be added later)
 -- no -Ofile
 
 -----------------------------------------------------------------------------
 -- Main loop
 
 main =
+  -- top-level exception handler: any unrecognised exception is a compiler bug.
+  handle (\exception -> do hPutStr stderr (show (Panic (show exception)))
+                          exitWith (ExitFailure 1)
+         ) $ do
+
   -- all error messages are propagated as exceptions
   handleDyn (\dyn -> case dyn of
                          PhaseFailed _phase code -> exitWith code
                          Interrupted -> exitWith (ExitFailure 1)
-                         _ -> do hPutStrLn stderr (show (dyn :: BarfKind))
+                         _ -> do hPutStrLn stderr (show (dyn :: GhcException))
                                  exitWith (ExitFailure 1)
-             ) $ do
+           ) $ do
 
    -- make sure we clean up after ourselves
    later (do  forget_it <- readIORef v_Keep_tmp_files
@@ -302,11 +306,10 @@ beginInteractive = throwDyn (OtherError "not build for interactive use")
 #else
 beginInteractive mods
   = do state <- cmInit Interactive
-       (state', ok, ms) 
-         <- case mods of
-               []    -> return (state, True, [])
-               [mod] -> cmLoadModule state mod
+       let mod = case mods of
+               []    -> Nothing
+               [mod] -> Just mod
                _     -> throwDyn (UsageError 
                                    "only one module allowed with --interactive")
-       interactiveUI state' ms
+       interactiveUI state mod
 #endif