-- GHC's command-line interface
main :: IO ()
-main =
- GHC.defaultErrorHandler defaultDynFlags $ do
+main = do
+ hSetBuffering stdout NoBuffering
+ GHC.defaultErrorHandler defaultDynFlags $ do
-- 1. extract the -B flag from the args
argv0 <- getArgs
case mode of
Left preStartupMode ->
do case preStartupMode of
- ShowSupportedLanguages -> showSupportedLanguages
+ ShowSupportedExtensions -> showSupportedExtensions
ShowVersion -> showVersion
ShowNumVersion -> putStrLn cProjectVersion
Print str -> putStrLn str
data PreStartupMode
= ShowVersion -- ghc -V/--version
| ShowNumVersion -- ghc --numeric-version
- | ShowSupportedLanguages -- ghc --supported-languages
+ | ShowSupportedExtensions -- ghc --supported-extensions
| Print String -- ghc --print-foo
-showVersionMode, showNumVersionMode, showSupportedLanguagesMode :: Mode
-showVersionMode = mkPreStartupMode ShowVersion
-showNumVersionMode = mkPreStartupMode ShowNumVersion
-showSupportedLanguagesMode = mkPreStartupMode ShowSupportedLanguages
+showVersionMode, showNumVersionMode, showSupportedExtensionsMode :: Mode
+showVersionMode = mkPreStartupMode ShowVersion
+showNumVersionMode = mkPreStartupMode ShowNumVersion
+showSupportedExtensionsMode = mkPreStartupMode ShowSupportedExtensions
printMode :: String -> Mode
printMode str = mkPreStartupMode (Print str)
isDoInteractiveMode (Right (Right DoInteractive)) = True
isDoInteractiveMode _ = False
+isStopLnMode :: Mode -> Bool
+isStopLnMode (Right (Right (StopBefore StopLn))) = True
+isStopLnMode _ = False
+
+isDoMakeMode :: Mode -> Bool
+isDoMakeMode (Right (Right DoMake)) = True
+isDoMakeMode _ = False
+
#ifdef GHCI
isInteractiveMode :: PostLoadMode -> Bool
isInteractiveMode DoInteractive = True
isCompManagerMode (DoEval _) = True
isCompManagerMode _ = False
-
-- -----------------------------------------------------------------------------
-- Parsing the mode flag
runCmdLine (processArgs mode_flags args)
(Nothing, [], [])
mode = case mModeFlag of
- Nothing -> stopBeforeMode StopLn
+ Nothing -> doMakeMode
Just (m, _) -> m
errs = errs1 ++ map (mkGeneralLocated "on the commandline") errs2
when (not (null errs)) $ ghcError $ errorsToGhcException errs
mode_flags :: [Flag ModeM]
mode_flags =
[ ------- help / version ----------------------------------------------
- Flag "?" (PassFlag (setMode showGhcUsageMode))
- Supported
- , Flag "-help" (PassFlag (setMode showGhcUsageMode))
- Supported
- , Flag "V" (PassFlag (setMode showVersionMode))
- Supported
- , Flag "-version" (PassFlag (setMode showVersionMode))
- Supported
- , Flag "-numeric-version" (PassFlag (setMode showNumVersionMode))
- Supported
- , Flag "-info" (PassFlag (setMode showInfoMode))
- Supported
- , Flag "-supported-languages" (PassFlag (setMode showSupportedLanguagesMode))
- Supported
+ Flag "?" (PassFlag (setMode showGhcUsageMode))
+ , Flag "-help" (PassFlag (setMode showGhcUsageMode))
+ , Flag "V" (PassFlag (setMode showVersionMode))
+ , Flag "-version" (PassFlag (setMode showVersionMode))
+ , Flag "-numeric-version" (PassFlag (setMode showNumVersionMode))
+ , Flag "-info" (PassFlag (setMode showInfoMode))
+ , Flag "-supported-languages" (PassFlag (setMode showSupportedExtensionsMode))
+ , Flag "-supported-extensions" (PassFlag (setMode showSupportedExtensionsMode))
] ++
[ Flag k' (PassFlag (setMode mode))
- Supported
| (k, v) <- compilerInfo,
let k' = "-print-" ++ map (replaceSpace . toLower) k
replaceSpace ' ' = '-'
------- interfaces ----------------------------------------------------
[ Flag "-show-iface" (HasArg (\f -> setMode (showInterfaceMode f)
"--show-iface"))
- Supported
------- primary modes ------------------------------------------------
+ , Flag "c" (PassFlag (\f -> do setMode (stopBeforeMode StopLn) f
+ addFlag "-no-link" f))
, Flag "M" (PassFlag (setMode doMkDependHSMode))
- Supported
, Flag "E" (PassFlag (setMode (stopBeforeMode anyHsc)))
- Supported
, Flag "C" (PassFlag (\f -> do setMode (stopBeforeMode HCc) f
addFlag "-fvia-C" f))
- Supported
, Flag "S" (PassFlag (setMode (stopBeforeMode As)))
- Supported
, Flag "-make" (PassFlag (setMode doMakeMode))
- Supported
, Flag "-interactive" (PassFlag (setMode doInteractiveMode))
- Supported
, Flag "-abi-hash" (PassFlag (setMode doAbiHashMode))
- Supported
, Flag "e" (SepArg (\s -> setMode (doEvalMode s) "-e"))
- Supported
-
- -- -fno-code says to stop after Hsc but don't generate any code.
- , Flag "fno-code" (PassFlag (\f -> do setMode (stopBeforeMode HCc) f
- addFlag "-fno-code" f
- addFlag "-fforce-recomp" f))
- Supported
]
-setMode :: Mode -> String -> ModeM ()
-setMode newMode newFlag = do
+setMode :: Mode -> String -> EwM ModeM ()
+setMode newMode newFlag = liftEwM $ do
(mModeFlag, errs, flags') <- getCmdLineState
let (modeFlag', errs') =
case mModeFlag of
Nothing -> ((newMode, newFlag), errs)
Just (oldMode, oldFlag) ->
case (oldMode, newMode) of
+ -- -c/--make are allowed together, and mean --make -no-link
+ _ | isStopLnMode oldMode && isDoMakeMode newMode
+ || isStopLnMode newMode && isDoMakeMode oldMode ->
+ ((doMakeMode, "--make"), [])
+
-- If we have both --help and --interactive then we
-- want showGhciUsage
_ | isShowGhcUsageMode oldMode &&
flagMismatchErr oldFlag newFlag
= "cannot use `" ++ oldFlag ++ "' with `" ++ newFlag ++ "'"
-addFlag :: String -> String -> ModeM ()
-addFlag s flag = do
+addFlag :: String -> String -> EwM ModeM ()
+addFlag s flag = liftEwM $ do
(m, e, flags') <- getCmdLineState
putCmdLineState (m, e, mkGeneralLocated loc s : flags')
where loc = "addFlag by " ++ flag ++ " on the commandline"
-- Run --make mode
doMake :: [(String,Maybe Phase)] -> Ghc ()
-doMake [] = ghcError (UsageError "no input files")
doMake srcs = do
let (hs_srcs, non_hs_srcs) = partition haskellish srcs
phase `notElem` [As, Cc, CmmCpp, Cmm, StopLn]
hsc_env <- GHC.getSession
+
+ -- if we have no haskell sources from which to do a dependency
+ -- analysis, then just do one-shot compilation and/or linking.
+ -- This means that "ghc Foo.o Bar.o -o baz" links the program as
+ -- we expect.
+ if (null hs_srcs)
+ then oneShot hsc_env StopLn srcs >> GHC.printWarnings
+ else do
+
o_files <- mapM (\x -> do
f <- compileFile hsc_env StopLn x
GHC.printWarnings
where flatten (k, String v) = (k, v)
flatten (k, FromDynFlags f) = (k, f dflags)
-showSupportedLanguages :: IO ()
-showSupportedLanguages = mapM_ putStrLn supportedLanguages
+showSupportedExtensions :: IO ()
+showSupportedExtensions = mapM_ putStrLn supportedLanguagesAndExtensions
showVersion :: IO ()
showVersion = putStrLn (cProjectName ++ ", version " ++ cProjectVersion)
projects / ghc-hetmet.git / blobdiff