X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fcompiler%2Fghci%2FInteractiveUI.hs;h=da64f4bc7b2ce4c6c6e402f5a8b82699e9705b93;hb=7c73abbfc759839f65a57ee3e763bd1fcc614aa6;hp=2315a34fa5e032ba27ecc262e5a47a912c33bf9f;hpb=9fca47dc861ba311524831f99676fa515c276906;p=ghc-hetmet.git

diff --git a/ghc/compiler/ghci/InteractiveUI.hs b/ghc/compiler/ghci/InteractiveUI.hs
index 2315a34..da64f4b 100644
--- a/ghc/compiler/ghci/InteractiveUI.hs
+++ b/ghc/compiler/ghci/InteractiveUI.hs
@@ -1,5 +1,5 @@
 -----------------------------------------------------------------------------
--- $Id: InteractiveUI.hs,v 1.71 2001/06/06 14:02:50 sewardj Exp $
+-- $Id: InteractiveUI.hs,v 1.80 2001/06/28 11:29:26 simonmar Exp $
 --
 -- GHC Interactive User Interface
 --
@@ -13,8 +13,9 @@ module InteractiveUI ( interactiveUI, ghciWelcomeMsg ) where
 #include "../includes/config.h"
 #include "HsVersions.h"
 
+import Packages
 import CompManager
-import CmStaticInfo
+import HscTypes		( GhciMode(..) )
 import ByteCodeLink
 import DriverFlags
 import DriverState
@@ -24,7 +25,7 @@ import Finder		( flushPackageCache )
 import Util
 import Name		( Name )
 import Outputable
-import CmdLineOpts	( DynFlag(..), dopt_unset )
+import CmdLineOpts	( DynFlag(..), getDynFlags, saveDynFlags, restoreDynFlags, dopt_unset )
 import Panic		( GhcException(..) )
 import Config
 
@@ -89,10 +90,11 @@ helpText = "\
 \ Commands available from the prompt:\n\ 
 \\  
 \   <stmt>		   evaluate/run <stmt>\n\ 
+\   :add <filename> ...    add module(s) to the current target set\n\ 
 \   :cd <dir>		   change directory to <dir>\n\ 
 \   :def <cmd> <expr>      define a command :<cmd>\n\ 
 \   :help, :?		   display this list of commands\n\ 
-\   :load <filename>       load a module (and its dependents)\n\ 
+\   :load <filename> ...   load module(s) and their dependents\n\ 
 \   :module <mod>	   set the context for expression evaluation to <mod>\n\ 
 \   :reload		   reload the current module set\n\ 
 \   :set <option> ...	   set options\n\ 
@@ -110,10 +112,9 @@ helpText = "\
 \    -<flags>		most GHC command line flags can also be set here\n\ 
 \                         (eg. -v2, -fglasgow-exts, etc.)\n\ 
 \"
- --ToDo   :add <filename>     add a module to the current set\n\ 
 
-interactiveUI :: CmState -> Maybe FilePath -> [LibrarySpec] -> IO ()
-interactiveUI cmstate mod cmdline_libs = do
+interactiveUI :: CmState -> [FilePath] -> [LibrarySpec] -> IO ()
+interactiveUI cmstate paths cmdline_libs = do
    hFlush stdout
    hSetBuffering stdout NoBuffering
 
@@ -123,9 +124,9 @@ interactiveUI cmstate mod cmdline_libs = do
    linkPackages cmdline_libs pkgs
 
    (cmstate, ok, mods) <-
-   	case mod of
-	     Nothing  -> return (cmstate, True, [])
-	     Just m -> cmLoadModule cmstate m
+   	case paths of
+	     [] -> return (cmstate, True, [])
+	     _  -> cmLoadModule cmstate paths
 
 #if HAVE_READLINE_HEADERS && HAVE_READLINE_LIBS
    Readline.initialize
@@ -145,7 +146,7 @@ interactiveUI cmstate mod cmdline_libs = do
 	Just hval -> writeIORef flush_stdout (unsafeCoerce# hval :: IO ())
 	_ -> panic "interactiveUI:stdout"
 
-   startGHCi runGHCi GHCiState{ target = mod,
+   startGHCi runGHCi GHCiState{ targets = paths,
 			        cmstate = cmstate,
 			        options = [] }
    return ()
@@ -267,27 +268,28 @@ readlineLoop = do
 -- and carries on.
 runCommand :: String -> GHCi Bool
 runCommand c = 
-  ghciHandle ( \exception -> 
-	(case exception of
-	   DynException dyn -> 
-	      case fromDynamic dyn of
-		Nothing -> io (putStrLn ("*** Exception: (unknown)"))
-		Just ghc_ex -> 
-		  case ghc_ex of
-		    PhaseFailed phase code ->
-			io ( putStrLn ("Phase " ++ phase ++ " failed (code "
-				        ++ show code ++ ")"))
-		    Interrupted -> io (putStrLn "Interrupted.")
-			-- omit the location for CmdLineError
-		    CmdLineError s -> io (putStrLn s)
-		    other -> io (putStrLn (show (ghc_ex :: GhcException)))
-
-	   other -> io (putStrLn ("*** Exception: " ++ show exception))
-
-	) >> return False
-     ) $
-
-   doCommand c
+  ghciHandle ( \exception -> do
+		flushEverything
+		showException exception
+		return False
+	     ) $
+  doCommand c
+
+showException (DynException dyn) =
+  case fromDynamic dyn of
+    Nothing -> 
+	io (putStrLn ("*** Exception: (unknown)"))
+    Just (PhaseFailed phase code) ->
+	io (putStrLn ("Phase " ++ phase ++ " failed (code "
+		       ++ show code ++ ")"))
+    Just Interrupted ->
+	io (putStrLn "Interrupted.")
+    Just (CmdLineError s) -> 
+	io (putStrLn s)	 -- omit the location for CmdLineError
+    Just other_ghc_ex ->
+	io (putStrLn (show other_ghc_ex))
+showException other_exception
+  = io (putStrLn ("*** Exception: " ++ show other_exception))
 
 doCommand (':' : command) = specialCommand command
 doCommand stmt
@@ -302,7 +304,7 @@ runStmt stmt
  = return Nothing
  | otherwise
  = do st <- getGHCiState
-      dflags <- io (getDynFlags)
+      dflags <- io getDynFlags
       let dflags' = dopt_unset dflags Opt_WarnUnusedBinds
       (new_cmstate, names) <- io (cmRunStmt (cmstate st) dflags' stmt)
       setGHCiState st{cmstate = new_cmstate}
@@ -358,13 +360,23 @@ help :: String -> GHCi ()
 help _ = io (putStr helpText)
 
 addModule :: String -> GHCi ()
-addModule _ = throwDyn (InstallationError ":add not implemented")
+addModule str = do
+  let files = words str
+  state <- getGHCiState
+  dflags <- io (getDynFlags)
+  io (revertCAFs)			-- always revert CAFs on load/add.
+  let new_targets = files ++ targets state 
+  (cmstate1, ok, mods) <- io (cmLoadModule (cmstate state) new_targets)
+  setGHCiState state{ cmstate = cmstate1, targets = new_targets }
+  modulesLoadedMsg ok mods
 
 setContext :: String -> GHCi ()
 setContext ""
   = throwDyn (CmdLineError "syntax: `:m <module>'")
-setContext m | not (isUpper (head m)) || not (all isAlphaNum (tail m))
+setContext m | not (isUpper (head m)) || not (all isAlphaNumEx (tail m))
   = throwDyn (CmdLineError ("strange looking module name: `" ++ m ++ "'"))
+    where
+       isAlphaNumEx c = isAlphaNum c || c == '_'
 setContext str
   = do st <- getGHCiState
        new_cmstate <- io (cmSetContext (cmstate st) str)
@@ -394,7 +406,7 @@ defineMacro s = do
 
   -- compile the expression
   st <- getGHCiState
-  dflags <- io (getDynFlags)
+  dflags <- io getDynFlags
   (new_cmstate, maybe_hv) <- io (cmCompileExpr (cmstate st) dflags new_expr)
   setGHCiState st{cmstate = new_cmstate}
   case maybe_hv of
@@ -421,26 +433,27 @@ undefineMacro macro_name = do
   io (writeIORef commands (filter ((/= macro_name) . fst) cmds))
 
 loadModule :: String -> GHCi ()
-loadModule path = timeIt (loadModule' path)
+loadModule str = timeIt (loadModule' str)
 
-loadModule' path = do
+loadModule' str = do
+  let files = words str
   state <- getGHCiState
-  dflags <- io (getDynFlags)
+  dflags <- io getDynFlags
   cmstate1 <- io (cmUnload (cmstate state) dflags)
-  setGHCiState state{ cmstate = cmstate1, target = Nothing }
+  setGHCiState state{ cmstate = cmstate1, targets = [] }
   io (revertCAFs)			-- always revert CAFs on load.
-  (cmstate2, ok, mods) <- io (cmLoadModule cmstate1 path)
-  setGHCiState state{ cmstate = cmstate2, target = Just path }
+  (cmstate2, ok, mods) <- io (cmLoadModule cmstate1 files)
+  setGHCiState state{ cmstate = cmstate2, targets = files }
   modulesLoadedMsg ok mods
 
 reloadModule :: String -> GHCi ()
 reloadModule "" = do
   state <- getGHCiState
-  case target state of
-   Nothing -> io (putStr "no current target\n")
-   Just path
+  case targets state of
+   [] -> io (putStr "no current target\n")
+   paths
       -> do io (revertCAFs)		-- always revert CAFs on reload.
-	    (new_cmstate, ok, mods) <- io (cmLoadModule (cmstate state) path)
+	    (new_cmstate, ok, mods) <- io (cmLoadModule (cmstate state) paths)
             setGHCiState state{ cmstate=new_cmstate }
 	    modulesLoadedMsg ok mods
 
@@ -462,7 +475,7 @@ modulesLoadedMsg ok mods = do
 typeOfExpr :: String -> GHCi ()
 typeOfExpr str 
   = do st <- getGHCiState
-       dflags <- io (getDynFlags)
+       dflags <- io getDynFlags
        (new_cmstate, maybe_tystr) <- io (cmTypeOfExpr (cmstate st) dflags str)
        setGHCiState st{cmstate = new_cmstate}
        case maybe_tystr of
@@ -511,11 +524,9 @@ setOptions str
 
       -- then, dynamic flags
       io $ do 
-	dyn_flags <- readIORef v_InitDynFlags
-        writeIORef v_DynFlags dyn_flags
+	restoreDynFlags
         leftovers <- processArgs dynamic_flags leftovers []
-        dyn_flags <- readIORef v_DynFlags
-        writeIORef v_InitDynFlags dyn_flags
+	saveDynFlags
 
         if (not (null leftovers))
 		then throwDyn (CmdLineError ("unrecognised flags: " ++ 
@@ -570,9 +581,9 @@ optToStr RevertCAFs = "r"
 
 newPackages new_pkgs = do
   state <- getGHCiState
-  dflags <- io (getDynFlags)
+  dflags <- io getDynFlags
   cmstate1 <- io (cmUnload (cmstate state) dflags)
-  setGHCiState state{ cmstate = cmstate1, target = Nothing }
+  setGHCiState state{ cmstate = cmstate1, targets = [] }
 
   io $ do
     pkgs <- getPackageInfo
@@ -586,7 +597,7 @@ newPackages new_pkgs = do
 
 data GHCiState = GHCiState
      { 
-	target         :: Maybe FilePath,
+	targets        :: [FilePath],
 	cmstate        :: CmState,
 	options        :: [GHCiOption]
      }
@@ -669,8 +680,15 @@ linkPackages cmdline_lib_specs pkgs
         lib_paths <- readIORef v_Library_paths
         mapM_ (preloadLib lib_paths) cmdline_lib_specs
      where
-	-- packages that are already linked into GHCi
-	loaded = [ "concurrent", "posix", "text", "util" ]
+	-- Packages that are already linked into GHCi.  For mingw32, we only
+	-- skip gmp and rts, since std and after need to load the msvcrt.dll
+	-- library which std depends on.
+	loaded 
+#          ifndef mingw32_TARGET_OS
+           = [ "gmp", "rts", "std", "concurrent", "posix", "text", "util" ]
+#          else
+           = [ "gmp", "rts" ]
+#          endif
 
         preloadLib :: [String] -> LibrarySpec -> IO ()
         preloadLib lib_paths lib_spec
@@ -680,7 +698,10 @@ linkPackages cmdline_lib_specs pkgs
                       -> do b <- preload_static lib_paths static_ish
                             putStrLn (if b then "done" else "not found")
                    Right dll_unadorned
-                      -> do b <- preload_dynamic lib_paths dll_unadorned
+                      -> -- We add "" to the set of paths to try, so that
+                         -- if none of the real paths match, we force addDLL
+                         -- to look in the default dynamic-link search paths.
+                         do b <- preload_dynamic (lib_paths++[""]) dll_unadorned
                             when (not b) (cantFind lib_paths lib_spec)
                             putStrLn "done"
 
@@ -745,7 +766,7 @@ loadClassified (Right dll_unadorned)
         if    maybe_errmsg == nullPtr
          then return ()
          else do str <- peekCString maybe_errmsg
-                 throwDyn (CmdLineError ("can't find .o or .so/.DLL for: " 
+                 throwDyn (CmdLineError ("can't load .so/.DLL for: " 
                                        ++ dll_unadorned ++ " (" ++ str ++ ")" ))
 
 locateOneObj :: [FilePath] -> String -> IO LibrarySpec