X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fghci%2FInteractiveUI.hs;h=b5af439d640173a3ae49fc437883ac9ee10c059a;hb=a6156829d4e671c5385769ccc7675e644591525d;hp=daf11859ae52e8ede89385407b50ba74b2fca380;hpb=0dffb42cd1127db58a234da6232b8e4c65448fdd;p=ghc-hetmet.git

diff --git a/compiler/ghci/InteractiveUI.hs b/compiler/ghci/InteractiveUI.hs
index daf1185..b5af439 100644
--- a/compiler/ghci/InteractiveUI.hs
+++ b/compiler/ghci/InteractiveUI.hs
@@ -114,7 +114,12 @@ builtin_commands :: [Command]
 builtin_commands = [
   ("add",	tlC$ keepGoingPaths addModule,	False, completeFilename),
   ("browse",    keepGoing browseCmd,		False, completeModule),
-  ("cd",    	keepGoing changeDirectory,	False, completeFilename),
+#ifdef DEBUGGER
+        -- I think that :c should mean :continue rather than :cd, makes more sense
+        --  (pepe 01.11.07)
+  ("continue",  const(bkptOptions "continue"),  False, completeNone),
+#endif
+  ("cd",    	tlC$ keepGoing changeDirectory,	False, completeFilename),
   ("def",	keepGoing defineMacro,		False, completeIdentifier),
   ("e", 	keepGoing editFile,		False, completeFilename),
 	-- Hugs users are accustomed to :e, so make sure it doesn't overlap
@@ -136,7 +141,7 @@ builtin_commands = [
   ("print",     keepGoing (pprintClosureCommand True False), False, completeIdentifier),
   ("sprint",    keepGoing (pprintClosureCommand False False),False, completeIdentifier),
   ("force",     keepGoing (pprintClosureCommand False True), False, completeIdentifier),
-  ("breakpoint",keepGoing bkptOptions,          False, completeBkpt),
+  ("breakpoint",bkptOptions,                    False, completeBkpt),
 #endif
   ("kind",	keepGoing kindOfType,		False, completeIdentifier),
   ("unset",	keepGoing unsetOptions,		True,  completeSetOptions),
@@ -147,7 +152,7 @@ builtin_commands = [
 keepGoing :: (String -> GHCi ()) -> (String -> GHCi Bool)
 keepGoing a str = a str >> return False
 
--- tlC: Top Level Command
+-- tlC: Top Level Command, not allowed in inferior sessions
 tlC ::  (String -> GHCi Bool) -> (String -> GHCi Bool)
 tlC a str = do 
     top_level <- isTopLevel
@@ -169,13 +174,14 @@ helpText =
  "   :breakpoint <option>        commands for the GHCi debugger\n" ++
  "   :browse [*]<module>         display the names defined by <module>\n" ++
  "   :cd <dir>                   change directory to <dir>\n" ++
+ "   :continue                   equivalent to ':breakpoint continue'\n"  ++
  "   :def <cmd> <expr>           define a command :<cmd>\n" ++
  "   :edit <file>                edit file\n" ++
  "   :edit                       edit last module\n" ++
  "   :help, :?                   display this list of commands\n" ++
  "   :info [<name> ...]          display information about the given names\n" ++
  "   :print [<name> ...]         prints a value without forcing its computation\n" ++
- "   :sprint [<name> ...]        prints a value without forcing its computation(simpler)\n" ++
+ "   :sprint [<name> ...]        simplified version of :print\n" ++
  "   :load <filename> ...        load module(s) and their dependents\n" ++
  "   :module [+/-] [*]<mod> ...  set the context for expression evaluation\n" ++
  "   :main [<arguments> ...]     run the main function with the given arguments\n" ++
@@ -209,8 +215,9 @@ helpText =
  "\n" ++
  " Options for ':breakpoint':\n" ++
  "   list                                     list the current breakpoints\n" ++
- "   add Module line [col]                    add a new breakpoint\n" ++
+ "   add [Module] line [col]                    add a new breakpoint\n" ++
  "   del (breakpoint# | Module line [col])    delete a breakpoint\n" ++
+ "   continue                                 continue execution\n"  ++
  "   stop                   Stop a computation and return to the top level\n" ++
  "   step [count]           Step by step execution (DISABLED)\n"
 
@@ -772,7 +779,10 @@ afterLoad ok session = do
   graph <- io (GHC.getModuleGraph session)
   graph' <- filterM (io . GHC.isLoaded session . GHC.ms_mod_name) graph
   setContextAfterLoad session graph'
-  refreshBkptTable graph'
+  do 
+     bt  <- getBkptTable
+     bt' <- io$ refreshBkptTable session bt graph'
+     setBkptTable bt'
   modulesLoadedMsg ok (map GHC.ms_mod_name graph')
 
 setContextAfterLoad session [] = do
@@ -843,7 +853,11 @@ kindOfType str
 		           io (putStrLn (str ++ " :: " ++ tystr))
 
 quit :: String -> GHCi Bool
-quit _ = return True
+quit _ =  do in_inferior_session <- liftM not isTopLevel 
+             if in_inferior_session 
+               then throwDyn StopParentSession
+               else return True
+          
 
 shellEscape :: String -> GHCi Bool
 shellEscape str = io (system str >> return False)
@@ -1344,7 +1358,7 @@ wrapCompleter fun w =  do
 getCommonPrefix :: [String] -> String
 getCommonPrefix [] = ""
 getCommonPrefix (s:ss) = foldl common s ss
-  where common s "" = s
+  where common s "" = ""
 	common "" s = ""
 	common (c:cs) (d:ds)
 	   | c == d = c : common cs ds
@@ -1387,10 +1401,12 @@ handler (DynException dyn)
   = do ASSERTM (liftM not isTopLevel) 
        throwDyn StopChildSession
 
-  | Just (ChildSessionStopped msg) <- fromDynamic dyn 
-     -- Reload modules and display some message
-  = do ASSERTM (isTopLevel) 
-       io(putStrLn msg) >> return False
+  | Just StopParentSession <- fromDynamic dyn 
+  = do at_topLevel <-  isTopLevel
+       if at_topLevel then return True else throwDyn StopParentSession
+  
+  | Just (ChildSessionStopped msg) <- fromDynamic dyn     
+  = io(putStrLn msg) >> return False
 
 handler exception = do
   flushInterpBuffers
@@ -1507,9 +1523,10 @@ doBreakpoint ref_bkptTable s@(Session ref) values _ locMsg b = do
                               bkptTable= ref_bkptTable,
                               prelude  = prel_mod,
 			      topLevel = False }
-             `catchDyn` (
-                 \StopChildSession -> evaluate$
-                        throwDyn (ChildSessionStopped "")
+             `catchDyn` (\e -> case e of 
+                           StopChildSession -> evaluate$
+                                               throwDyn (ChildSessionStopped "")
+                           StopParentSession -> throwDyn StopParentSession
            ) `finally` do
              writeIORef ref hsc_env
              putStrLn $ "Returning to normal execution..."