[project @ 2001-08-03 20:40:43 by sof]

- have the toplevel exception handler propagate ExitExceptions, don't flag
  them as panics. i.e., when the dynamic exception handler catches a
  PhaseFailed{}, it throws an ExitException. The outer/topmost handler
  catches this (on a Win32 box, but not my other (Linux) box for some
  reason...), and maps it to a panic, which is not what you want.
- introduced the old 'Compilation had errors' message in case of a
  PhaseFailed{}; feel free to nuke that one (again).

diff --git a/ghc/compiler/main/Main.hs b/ghc/compiler/main/Main.hs
index 984245f..930735e 100644 (file)
--- a/ghc/compiler/main/Main.hs
+++ b/ghc/compiler/main/Main.hs
@@ -1,6 +1,6 @@
 {-# OPTIONS -fno-warn-incomplete-patterns #-}
 -----------------------------------------------------------------------------
--- $Id: Main.hs,v 1.81 2001/07/11 19:48:07 sof Exp $
+-- $Id: Main.hs,v 1.82 2001/08/03 20:40:43 sof Exp $
 --
 -- GHC Driver program
 --
@@ -114,14 +114,18 @@ main =
   handle (\exception -> do
           case exception of
                -- an IO exception probably isn't our fault, so don't panic
-               IOException _ ->  hPutStr stderr (show exception)
-               _other        ->  hPutStr stderr (show (Panic (show exception)))
+               IOException _   ->  hPutStr stderr (show exception)
+                 -- let exit exceptions bubble all the way out.
+               ExitException e ->  exitWith e
+               _other          ->  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
+                         PhaseFailed _phase code -> do
+                                       hPutStr stderr "\nCompilation had errors\n"
+                                       exitWith code
                          Interrupted -> exitWith (ExitFailure 1)
                          _ -> do hPutStrLn stderr (show (dyn :: GhcException))
                                  exitWith (ExitFailure 1)