{-# OPTIONS -fno-warn-incomplete-patterns -optc-DNON_POSIX_SOURCE #-}
-----------------------------------------------------------------------------
--- $Id: Main.hs,v 1.102 2002/03/29 21:39:37 sof Exp $
+-- $Id: Main.hs,v 1.108 2002/07/06 10:14:31 chak Exp $
--
-- GHC Driver program
--
#ifdef GHCI
-import InteractiveUI(ghciWelcomeMsg, interactiveUI)
+import InteractiveUI
#endif
v_Cmdline_libraries, v_Keep_tmp_files, v_Ld_inputs,
v_OptLevel, v_Output_file, v_Output_hi,
v_Package_details, v_Ways, getPackageExtraGhcOpts,
- readPackageConf
+ readPackageConf, verifyOutputFiles
)
import DriverFlags ( buildStaticHscOpts,
dynamic_flags, processArgs, static_flags)
import DriverMkDepend ( beginMkDependHS, endMkDependHS )
-import DriverPhases ( Phase(HsPp, Hsc), haskellish_src_file, objish_file )
+import DriverPhases ( Phase(HsPp, Hsc), haskellish_src_file, objish_file,
+ isSourceFile )
import DriverUtil ( add, handle, handleDyn, later, splitFilename,
- unknownFlagErr, getFileSuffix )
+ unknownFlagsErr, getFileSuffix )
import CmdLineOpts ( dynFlag, restoreDynFlags,
saveDynFlags, setDynFlags, getDynFlags, dynFlag,
DynFlags(..), HscLang(..), v_Static_hsc_opts,
do putStr "warning: -O conflicts with --interactive; -O turned off.\n"
writeIORef v_OptLevel 0
orig_ways <- readIORef v_Ways
- when (not (null orig_ways) && mode == DoInteractive) $
+ when (notNull orig_ways && mode == DoInteractive) $
do throwDyn (UsageError
"--interactive can't be used with -prof, -ticky, -unreg or -smp.")
-- save the "initial DynFlags" away
saveDynFlags
- -- complain about any unknown flags
- mapM unknownFlagErr [ f | f@('-':_) <- srcs ]
-
+ -- perform some checks of the options set / report unknowns.
+ checkOptions srcs
+
verb <- dynFlag verbosity
-- Show the GHCi banner
if (mode == DoInteractive) then beginInteractive srcs else do
-- -o sanity checking
+ let real_srcs = filter isSourceFile srcs -- filters out .a and .o that might appear
o_file <- readIORef v_Output_file
- if (srcs `lengthExceeds` 1 && isJust o_file && mode /= DoLink && mode /= DoMkDLL)
+ if (real_srcs `lengthExceeds` 1 && isJust o_file && mode /= DoLink && mode /= DoMkDLL)
then throwDyn (UsageError "can't apply -o to multiple source files")
else do
let not_hs_file = not (haskellish_src_file src)
pp <- if not_hs_file || mode == StopBefore Hsc || mode == StopBefore HsPp
then return src_and_suff else do
--- hPutStrLn stderr "before" >> hFlush stderr
phases <- genPipeline (StopBefore Hsc) stop_flag
False{-not persistent-} defaultHscLang
src_and_suff
--- hPutStrLn stderr "after" >> hFlush stderr
pipeLoop phases src_and_suff False{-no linking-} False{-no -o flag-}
basename suffix
-- rest of compilation
hsc_lang <- dynFlag hscLang
--- hPutStrLn stderr ("before-1 " ++ show (pp,mode)) >> hFlush stderr
phases <- genPipeline mode stop_flag True hsc_lang pp
--- hPutStrLn stderr "after" >> hFlush stderr
(r,_) <- pipeLoop phases pp (mode==DoLink || mode==DoMkDLL)
True{-use -o flag-} basename suffix
return r
beginMake :: [String] -> IO ()
beginMake fileish_args
= do let (objs, mods) = partition objish_file fileish_args
- mapM (add v_Ld_inputs) objs
+ mapM_ (add v_Ld_inputs) objs
case mods of
[] -> throwDyn (UsageError "no input files")
= do minus_ls <- readIORef v_Cmdline_libraries
let (objs, mods) = partition objish_file fileish_args
- libs = map Left objs ++ map Right minus_ls
+ libs = map Object objs ++ map DLL minus_ls
state <- cmInit Interactive
interactiveUI state mods libs
#endif
+
+checkOptions :: [String] -> IO ()
+checkOptions srcs = do
+ -- complain about any unknown flags
+ let unknown_opts = [ f | f@('-':_) <- srcs ]
+ when (notNull unknown_opts) (unknownFlagsErr unknown_opts)
+ -- verify that output files point somewhere sensible.
+ verifyOutputFiles
+ -- and anything else that it might be worth checking for
+ -- before kicking of a compilation (pipeline).
+