-{-# OPTIONS -fffi #-}
+{-# OPTIONS -fffi -cpp #-}
------------------------------------------------------------------------
--- $Id: Main.hs,v 1.53 2004/02/15 12:20:26 panne Exp $
+-- $Id: Main.hs,v 1.59 2004/08/12 12:12:54 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.
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)
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
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.
+ -- 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
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
_ -> 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"
(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
'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"
projects / ghc-hetmet.git / blobdiff