-{-# OPTIONS -W -fno-warn-incomplete-patterns #-}
+{-# OPTIONS -fno-warn-incomplete-patterns #-}
-----------------------------------------------------------------------------
--- $Id: Main.hs,v 1.22 2000/11/15 10:49:54 sewardj Exp $
+-- $Id: Main.hs,v 1.43 2001/01/03 11:13:43 simonmar Exp $
--
-- GHC Driver program
--
#include "HsVersions.h"
+
+#ifdef GHCI
+import Interpreter
+import InteractiveUI
+#endif
+
+#ifndef mingw32_TARGET_OS
+import Dynamic
+import Posix
+#endif
+
import CompManager
import DriverPipeline
import DriverState
import Panic
import DriverPhases ( Phase(..) )
import CmdLineOpts ( HscLang(..), DynFlags(..), v_Static_hsc_opts )
-import Module ( mkModuleName )
import TmpFiles
import Finder ( initFinder )
import CmStaticInfo
import Config
import Util
+
+
import Concurrent
-#ifndef mingw32_TARGET_OS
-import Posix
-#endif
import Directory
import IOExts
import Exception
-import Dynamic
import IO
import Monad
-- reading the package configuration file is too slow
-- -H, -K, -Rghc-timing
-- hi-diffs
+-- -ddump-all doesn't do anything
-----------------------------------------------------------------------------
-- Differences vs. old driver:
-- 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
unless forget_it $ do
- verb <- readIORef v_Verbose
- cleanTempFiles verb
+ verb <- dynFlag verbosity
+ cleanTempFiles (verb >= 2)
) $ do
-- exceptions will be blocked while we clean the temporary files,
-- so there shouldn't be any difficulty if we receive further
installHandler sigINT sig_handler Nothing
#endif
- pgm <- getProgName
- writeIORef v_Prog_name pgm
-
argv <- getArgs
-- grab any -B options from the command line first
hscLang = lang,
-- leave out hscOutName for now
hscOutName = panic "Main.main:hscOutName not set",
+
+ verbosity = case mode of
+ DoInteractive -> 1
+ DoMake -> 1
+ _other -> 0,
+
flags = [] }
-- the rest of the arguments are "dynamic"
-- complain about any unknown flags
mapM unknownFlagErr [ f | f@('-':_) <- srcs ]
- -- get the -v flag
- verb <- readIORef v_Verbose
+ -- save the flag state, because this could be modified by OPTIONS
+ -- pragmas during the compilation, and we'll need to restore it
+ -- before starting the next compilation.
+ saved_driver_state <- readIORef v_Driver_state
+ writeIORef v_InitDriverState saved_driver_state
+
+ verb <- dynFlag verbosity
- when verb (do hPutStr stderr "Glasgow Haskell Compiler, Version "
- hPutStr stderr cProjectVersion
- hPutStr stderr ", for Haskell 98, compiled by GHC version "
- hPutStrLn stderr cBooterVersion)
+ when (verb >= 2)
+ (do hPutStr stderr "Glasgow Haskell Compiler, Version "
+ hPutStr stderr cProjectVersion
+ hPutStr stderr ", for Haskell 98, compiled by GHC version "
+ hPutStrLn stderr cBooterVersion)
- when verb (hPutStrLn stderr ("Using package config file: " ++ conf_file))
+ when (verb >= 2)
+ (hPutStrLn stderr ("Using package config file: " ++ conf_file))
-- initialise the finder
- initFinder pkg_details
+ pkg_avails <- getPackageInfo
+ initFinder pkg_avails
-- mkdependHS is special
when (mode == DoMkDependHS) beginMkDependHS
-- make/interactive require invoking the compilation manager
- if (mode == DoMake) then beginMake pkg_details srcs else do
- if (mode == DoInteractive) then beginInteractive pkg_details srcs else do
-
- -- for each source file, find which phases to run
- let lang = hscLang init_dyn_flags
- pipelines <- mapM (genPipeline mode stop_flag True lang) srcs
- let src_pipelines = zip srcs pipelines
+ if (mode == DoMake) then beginMake srcs else do
+ if (mode == DoInteractive) then beginInteractive srcs else do
-- sanity checking
o_file <- readIORef v_Output_file
if null srcs then throwDyn (UsageError "no input files") else do
- -- save the flag state, because this could be modified by OPTIONS
- -- pragmas during the compilation, and we'll need to restore it
- -- before starting the next compilation.
- saved_driver_state <- readIORef v_Driver_state
-
- let compileFile (src, phases) = do
+ let compileFile src = do
writeIORef v_Driver_state saved_driver_state
writeIORef v_DynFlags init_dyn_flags
- r <- runPipeline phases src (mode==DoLink) True
+
+ -- We compile in two stages, because the file may have an
+ -- OPTIONS pragma that affects the compilation pipeline (eg. -fvia-C)
+
+ let (basename, suffix) = splitFilename src
+
+ -- just preprocess
+ pp <- if mode == StopBefore Hsc then return src else do
+ phases <- genPipeline (StopBefore Hsc) stop_flag
+ False{-not persistent-} defaultHscLang src
+ pipeLoop phases src False{-no linking-} False{-no -o flag-}
+ basename suffix
+
+ -- rest of compilation
+ dyn_flags <- readIORef v_DynFlags
+ phases <- genPipeline mode stop_flag True (hscLang dyn_flags) pp
+ r <- pipeLoop phases pp (mode==DoLink) True{-use -o flag-}
+ basename suffix
return r
- o_files <- mapM compileFile src_pipelines
+ o_files <- mapM compileFile srcs
when (mode == DoMkDependHS) endMkDependHS
when (mode == DoLink) (doLink o_files)
some -> writeIORef v_TopDir (drop 2 (last some)))
return others
-beginMake :: PackageConfigInfo -> [String] -> IO ()
-beginMake pkg_details mods
+beginMake :: [String] -> IO ()
+beginMake mods
= do case mods of
[] -> throwDyn (UsageError "no input files")
- [mod] -> do state <- cmInit pkg_details Batch
- cmLoadModule state (mkModuleName mod)
+ [mod] -> do state <- cmInit Batch
+ cmLoadModule state mod
return ()
_ -> throwDyn (UsageError "only one module allowed with --make")
-beginInteractive pkg_details mods
- = do case mods of
- [] -> return ()
- [mod] -> do state <- cmInit pkg_details Interactive
- cmLoadModule state (mkModuleName mod)
- return ()
- _ -> throwDyn (UsageError
- "only one module allowed with --interactive")
- interactiveUI
-
-interactiveUI :: IO ()
-interactiveUI = do
- hPutStr stdout ghciWelcomeMsg
- throwDyn (OtherError "GHCi not implemented yet")
-
-ghciWelcomeMsg = "\
-\ _____ __ __ ____ ------------------------------------------------\n\
-\(| || || (| |) GHCi: GHC Interactive, version 5.00 \n\
-\|| __ ||___|| || () For Haskell 98. \n\
-\|| |) ||---|| || // http://www.haskell.org/ghc \n\
-\|| || || || || // Bug reports to: glasgow-haskell-bugs@haskell.org\n\
-\(|___|| || || (|__|) (| ________________________________________________\n"
+beginInteractive :: [String] -> IO ()
+#ifndef GHCI
+beginInteractive = throwDyn (OtherError "not build for interactive use")
+#else
+beginInteractive mods
+ = do state <- cmInit Interactive
+ let mod = case mods of
+ [] -> Nothing
+ [mod] -> Just mod
+ _ -> throwDyn (UsageError
+ "only one module allowed with --interactive")
+ interactiveUI state mod
+#endif