-{-# OPTIONS -fffi #-}
+{-# OPTIONS -fffi -cpp #-}
------------------------------------------------------------------------
--- $Id: Main.hs,v 1.52 2004/02/09 17:23:20 ross Exp $
+-- $Id: Main.hs,v 1.69 2005/01/28 12:56:26 simonmar Exp $
--
-- Program for converting .hsc files to .hs files, by converting the
-- file into a C program which is run to generate the Haskell source.
--
-- See the documentation in the Users' Guide for more details.
-#if __GLASGOW_HASKELL__ >= 504 || __NHC__ >= 114
+#if defined(__GLASGOW_HASKELL__) && !defined(BUILD_NHC)
+#include "../../includes/ghcconfig.h"
+#endif
+
+#if __GLASGOW_HASKELL__ >= 504 || __NHC__ >= 114 || __HUGS__
import System.Console.GetOpt
#else
import GetOpt
import System (getProgName, getArgs, ExitCode(..), exitWith, system)
import Directory (removeFile,doesFileExist)
-import Monad (MonadPlus(..), liftM, liftM2, when, unless)
+import Monad (MonadPlus(..), liftM, liftM2, when)
import Char (isAlpha, isAlphaNum, isSpace, isDigit, toUpper, intToDigit, ord)
import List (intersperse, isSuffixOf)
import IO (hPutStr, hPutStrLn, stderr)
-#if defined(mingw32_HOST_OS)
+#if defined(mingw32_HOST_OS) && !__HUGS__
import Foreign
#if __GLASGOW_HASKELL__ >= 504 || __NHC__ >= 114
import Foreign.C.String
#endif
+#if defined(__GLASGOW_HASKELL__) && !defined(BUILD_NHC)
+import Compat.RawSystem ( rawSystem )
+#elif __HUGS__ || __NHC__ >= 117 || __GLASGOW_HASKELL__ >= 600
+import System.Cmd ( rawSystem )
+#else
+rawSystem prog args = system (prog++" "++unwords args)
+#endif
+
version :: String
version = "hsc2hs version 0.66\n"
-- If there is no Template flag explicitly specified, try
-- to find one by looking near the executable. This only
- -- works on Win32 (getExecDir). On Unix, there's a wrapper
+ -- works on Win32 or Hugs (getExecDir). On Unix, there's a wrapper
-- script which specifies an explicit template flag.
flags_w_tpl <- if any template_flag flags then
return flags
else
+#ifdef __HUGS__
+ do mb_path <- getExecDir "/Main.hs"
+#else
do mb_path <- getExecDir "/bin/hsc2hs.exe"
+#endif
add_opt <-
case mb_path of
Nothing -> return id
output flags name toks = do
(outName, outDir, outBase) <- case [f | Output f <- flags] of
- []
- | not (null ext) &&
- last ext == 'c' -> return (dir++base++init ext, dir, base)
- | ext == ".hs" -> return (dir++base++"_out.hs", dir, base)
- | otherwise -> return (dir++base++".hs", dir, base)
- where
- (dir, file) = splitName name
- (base, ext) = splitExt file
+ [] -> if not (null ext) && last ext == 'c'
+ then return (dir++base++init ext, dir, base)
+ else
+ if ext == ".hs"
+ then return (dir++base++"_out.hs", dir, base)
+ else return (dir++base++".hs", dir, base)
+ where
+ (dir, file) = splitName name
+ (base, ext) = splitExt file
[f] -> let
(dir, file) = splitName f
(base, _) = splitExt file
let cProgName = outDir++outBase++"_hsc_make.c"
oProgName = outDir++outBase++"_hsc_make.o"
- progName = outDir++outBase++"_hsc_make" ++ EXEEXT
+ progName = outDir++outBase++"_hsc_make"
+#if defined(mingw32_HOST_OS)
+-- This is a real hack, but the quoting mechanism used for calling the C preprocesseor
+-- via GHC has changed a few times, so this seems to be the only way... :-P * * *
+ ++ ".exe"
+#endif
outHFile = outBase++"_hsc.h"
outHName = outDir++outHFile
outCName = outDir++outBase++"_hsc.c"
- beVerbose = any (\ x -> case x of { Verbose{} -> True; _ -> False}) flags
+ beVerbose = any (\ x -> case x of { Verbose -> True; _ -> False}) flags
let execProgName
| null outDir = dosifyPath ("./" ++ progName)
fixChar c | isAlphaNum c = toUpper c
| otherwise = '_'
- -- try locating GHC..on Win32, look in the vicinity of hsc2hs.
+#ifdef __HUGS__
+ compiler <- case [c | Compiler c <- flags] of
+ [] -> return "gcc"
+ [c] -> return c
+ _ -> onlyOne "compiler"
+
+ linker <- case [l | Linker l <- flags] of
+ [] -> return compiler
+ [l] -> return l
+ _ -> onlyOne "linker"
+#else
+ -- Try locating GHC..on Win32, look in the vicinity of hsc2hs.
+ -- Returns a native-format path
locateGhc def = do
mb <- getExecDir "bin/hsc2hs.exe"
case mb of
then return ghc_path
else return def
+ -- On a Win32 installation we execute the hsc2hs binary directly,
+ -- with no --cc flags, so we'll call locateGhc here, which will
+ -- succeed, via getExecDir.
+ --
+ -- On a Unix installation, we'll run the wrapper script hsc2hs.sh
+ -- (called plain hsc2hs in the installed tree), which will pass
+ -- a suitable C compiler via --cc
+ --
+ -- The in-place installation always uses the wrapper script,
+ -- (called hsc2hs-inplace, generated from hsc2hs.sh)
compiler <- case [c | Compiler c <- flags] of
[] -> locateGhc "ghc"
[c] -> return c
[] -> locateGhc compiler
[l] -> return l
_ -> onlyOne "linker"
+#endif
writeFile cProgName $
concatMap outFlagHeaderCProg flags++
concatMap outTokenHs toks++
" return 0;\n}\n"
- unless (null [() | NoCompile <- flags]) $ exitWith ExitSuccess
+ -- NOTE: hbc compiles "[() | NoCompile <- flags]" into wrong code,
+ -- so we use something slightly more complicated. :-P
+ when (any (\x -> case x of NoCompile -> True; _ -> False) flags) $
+ exitWith ExitSuccess
- compilerStatus <- systemL beVerbose $
- compiler++
- " -c"++
- concat [" "++f | CompFlag f <- flags]++
- " "++cProgName++
- " -o "++oProgName
+ compilerStatus <- rawSystemL beVerbose compiler
+ ( ["-c"]
+ ++ [f | CompFlag f <- flags]
+ ++ [cProgName]
+ ++ ["-o", oProgName]
+ )
+
case compilerStatus of
e@(ExitFailure _) -> exitWith e
_ -> return ()
removeFile cProgName
- linkerStatus <- systemL beVerbose $
- linker++
- concat [" "++f | LinkFlag f <- flags]++
- " "++oProgName++
- " -o "++progName
+ linkerStatus <- rawSystemL beVerbose linker
+ ( [f | LinkFlag f <- flags]
+ ++ [oProgName]
+ ++ ["-o", progName]
+ )
+
case linkerStatus of
e@(ExitFailure _) -> exitWith e
_ -> return ()
_ -> return ()
when needsH $ writeFile outHName $
- "#ifndef "++includeGuard++"\n\
- \#define "++includeGuard++"\n\
- \#if " ++
- "__GLASGOW_HASKELL__ && __GLASGOW_HASKELL__ < 409\n\
- \#include <Rts.h>\n\
- \#endif\n\
- \#include <HsFFI.h>\n\
- \#if __NHC__\n\
- \#undef HsChar\n\
- \#define HsChar int\n\
- \#endif\n"++
+ "#ifndef "++includeGuard++"\n" ++
+ "#define "++includeGuard++"\n" ++
+ "#if __GLASGOW_HASKELL__ && __GLASGOW_HASKELL__ < 409\n" ++
+ "#include <Rts.h>\n" ++
+ "#endif\n" ++
+ "#include <HsFFI.h>\n" ++
+ "#if __NHC__\n" ++
+ "#undef HsChar\n" ++
+ "#define HsChar int\n" ++
+ "#endif\n" ++
concatMap outFlagH flags++
concatMap outTokenH specials++
"#endif\n"
-- NB. outHFile not outHName; works better when processed
-- by gcc or mkdependC.
+rawSystemL :: Bool -> String -> [String] -> IO ExitCode
+rawSystemL flg prog args = do
+ when flg $ hPutStrLn stderr ("Executing: " ++ prog ++ concat (map (' ':) args))
+ rawSystem prog args
+
systemL :: Bool -> String -> IO ExitCode
systemL flg s = do
when flg (hPutStrLn stderr ("Executing: " ++ s))
outFlagHeaderCProg :: Flag -> String
outFlagHeaderCProg (Template t) = "#include \""++t++"\"\n"
outFlagHeaderCProg (Include f) = "#include "++f++"\n"
-outFlagHeaderCProg (Define n Nothing) = "#define "++n++"\n"
+outFlagHeaderCProg (Define n Nothing) = "#define "++n++" 1\n"
outFlagHeaderCProg (Define n (Just v)) = "#define "++n++" "++v++"\n"
outFlagHeaderCProg _ = ""
(header, _:body) -> case break isSpace header of
(name, args) ->
outCLine pos++
- "#define hsc_"++name++"("++dropWhile isSpace args++") \
- \printf ("++joinLines body++");\n"
+ "#define hsc_"++name++"("++dropWhile isSpace args++") " ++
+ "printf ("++joinLines body++");\n"
_ -> ""
- where
+ where
joinLines = concat . intersperse " \\\n" . lines
outHeaderHs :: [Flag] -> Maybe String -> [(SourcePos, String, String)] -> String
outHeaderHs flags inH toks =
"#if " ++
- "__GLASGOW_HASKELL__ && __GLASGOW_HASKELL__ < 409\n\
- \ printf (\"{-# OPTIONS -optc-D" ++
- "__GLASGOW_HASKELL__=%d #-}\\n\", \
- \__GLASGOW_HASKELL__);\n\
- \#endif\n"++
+ "__GLASGOW_HASKELL__ && __GLASGOW_HASKELL__ < 409\n" ++
+ " printf (\"{-# OPTIONS -optc-D" ++
+ "__GLASGOW_HASKELL__=%d #-}\\n\", " ++
+ "__GLASGOW_HASKELL__);\n" ++
+ "#endif\n"++
case inH of
Nothing -> concatMap outFlag flags++concatMap outSpecial toks
Just f -> outOption ("-#include \""++f++"\"")
(enum, rest) -> let
this = case break (== '=') $ dropWhile isSpace enum of
(name, []) ->
- " hsc_enum ("++t++", "++f++", \
- \hsc_haskellize (\""++name++"\"), "++
+ " hsc_enum ("++t++", "++f++", " ++
+ "hsc_haskellize (\""++name++"\"), "++
name++");\n"
(hsName, _:cName) ->
- " hsc_enum ("++t++", "++f++", \
- \printf (\"%s\", \""++hsName++"\"), "++
+ " hsc_enum ("++t++", "++f++", " ++
+ "printf (\"%s\", \""++hsName++"\"), "++
cName++");\n"
in this++enums rest
in enums afterF
outFlagH :: Flag -> String
outFlagH (Include f) = "#include "++f++"\n"
-outFlagH (Define n Nothing) = "#define "++n++"\n"
+outFlagH (Define n Nothing) = "#define "++n++" 1\n"
outFlagH (Define n (Just v)) = "#define "++n++" "++v++"\n"
outFlagH _ = ""
's':'t':'r':'u':'c':'t':' ':_ -> arg++"\n"
't':'y':'p':'e':'d':'e':'f':' ':_ -> arg++"\n"
'i':'n':'l':'i':'n':'e':' ':_ ->
- "#ifdef __GNUC__\n\
- \extern\n\
- \#endif\n"++
+ "#ifdef __GNUC__\n" ++
+ "extern\n" ++
+ "#endif\n"++
arg++"\n"
_ -> "extern "++header++";\n"
- where header = takeWhile (\c -> c /= '{' && c /= '=') arg
+ where header = takeWhile (\c -> c /= '{' && c /= '=') arg
_ | conditional key -> outCLine pos++"#"++key++" "++arg++"\n"
_ -> ""
case span (\c -> c /= '{' && c /= '=') arg' of
(header, body) ->
outCLine pos++
- "#ifndef __GNUC__\n\
- \extern inline\n\
- \#endif\n"++
+ "#ifndef __GNUC__\n" ++
+ "extern inline\n" ++
+ "#endif\n"++
header++
- "\n#ifndef __GNUC__\n\
- \;\n\
- \#else\n"++
+ "\n#ifndef __GNUC__\n" ++
+ ";\n" ++
+ "#else\n"++
body++
"\n#endif\n"
_ -> outCLine pos++arg++"\n"
-- Cut and pasted from ghc/compiler/SysTools
-- Convert paths foo/baz to foo\baz on Windows
-dosifyPath :: String -> String
+dosifyPath, unDosifyPath :: String -> String
#if defined(mingw32_HOST_OS)
dosifyPath xs = subst '/' '\\' xs
-
-unDosifyPath :: String -> String
unDosifyPath xs = subst '\\' '/' xs
subst :: Eq a => a -> a -> [a] -> [a]
subst a b ls = map (\ x -> if x == a then b else x) ls
+#else
+dosifyPath xs = xs
+unDosifyPath xs = xs
+#endif
getExecDir :: String -> IO (Maybe String)
-- (getExecDir cmd) returns the directory in which the current
-- executable, which should be called 'cmd', is running
-- So if the full path is /a/b/c/d/e, and you pass "d/e" as cmd,
-- you'll get "/a/b/c" back as the result
+#ifdef __HUGS__
+getExecDir cmd
+ = do
+ s <- getProgName
+ return (Just (reverse (drop (length cmd) (reverse (unDosifyPath s)))))
+#elif defined(mingw32_HOST_OS)
getExecDir cmd
= allocaArray len $ \buf -> do
ret <- getModuleFileName nullPtr buf len
getModuleFileName :: Ptr () -> CString -> Int -> IO Int32
#else
-dosifyPath xs = xs
-
-getExecDir :: String -> IO (Maybe String)
getExecDir _ = return Nothing
#endif
projects / ghc-hetmet.git / blobdiff