------------------------------------------------------------------------------
--- $Id: Main.hs,v 1.12 2001/01/13 23:10:45 qrczak Exp $
---
--- (originally "GlueHsc.hs" by Marcin 'Qrczak' Kowalczyk)
---
+{-# OPTIONS -fffi -cpp #-}
+
+------------------------------------------------------------------------
-- Program for converting .hsc files to .hs files, by converting the
-- file into a C program which is run to generate the Haskell source.
-- Certain items known only to the C compiler can then be used in
--
-- See the documentation in the Users' Guide for more details.
+#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(..), system, exitWith, exitFailure)
-import Directory (removeFile)
-import Parsec
-import ParsecError
-import Monad (liftM, liftM2, when)
-import Char (ord, intToDigit, isSpace, isAlpha, isAlphaNum, toUpper)
-import List (intersperse)
+#endif
+
+import System (getProgName, getArgs, ExitCode(..), exitWith)
+import Directory (removeFile,doesFileExist)
+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) && !__HUGS__
+import Foreign
+#if __GLASGOW_HASKELL__ >= 504 || __NHC__ >= 114
+import Foreign.C.String
+#else
+import CString
+#endif
+#endif
+
+
+#if __GLASGOW_HASKELL__ >= 604
+import System.Process ( runProcess, waitForProcess )
+import System.IO ( openFile, IOMode(..), hClose )
+#define HAVE_runProcess
+#endif
+
+#if defined(__GLASGOW_HASKELL__) && !defined(BUILD_NHC)
+import Compat.RawSystem ( rawSystem )
+#define HAVE_rawSystem
+#elif __HUGS__ || __NHC__ >= 117
+import System.Cmd ( rawSystem )
+#define HAVE_rawSystem
+#endif
+
+#if !defined(HAVE_runProcess) || !defined(HAVE_rawSystem)
+-- we need system
+#if __HUGS__ || __NHC__ >= 117 || __GLASGOW_HASKELL__ >= 600
+import System.Cmd ( system )
+#else
+import System ( system )
+#endif
+#endif
version :: String
-version = "hsc2hs-0.64"
+version = "hsc2hs version 0.66\n"
data Flag
= Help
| Version
- | Template String
- | Compiler String
- | Linker String
- | CompFlag String
- | LinkFlag String
- | Include String
+ | Template String
+ | Compiler String
+ | Linker String
+ | CompFlag String
+ | LinkFlag String
+ | NoCompile
+ | Include String
+ | Define String (Maybe String)
+ | Output String
+ | Verbose
+
+template_flag :: Flag -> Bool
+template_flag (Template _) = True
+template_flag _ = False
include :: String -> Flag
include s@('\"':_) = Include s
include s@('<' :_) = Include s
include s = Include ("\""++s++"\"")
+define :: String -> Flag
+define s = case break (== '=') s of
+ (name, []) -> Define name Nothing
+ (name, _:value) -> Define name (Just value)
+
options :: [OptDescr Flag]
options = [
- Option "t" ["template"] (ReqArg Template "FILE") "template file",
- Option "" ["cc"] (ReqArg Compiler "PROG") "C compiler to use",
- Option "" ["ld"] (ReqArg Linker "PROG") "linker to use",
- Option "" ["cflag"] (ReqArg CompFlag "FLAG") "flag to pass to the C compiler",
- Option "I" [] (ReqArg (CompFlag . ("-I"++))
- "DIR") "passed to the C compiler",
- Option "" ["lflag"] (ReqArg LinkFlag "FLAG") "flag to pass to the linker",
- Option "" ["include"] (ReqArg include "FILE") "as if placed in the source",
- Option "" ["help"] (NoArg Help) "display this help and exit",
- Option "" ["version"] (NoArg Version) "output version information and exit"]
+ Option ['o'] ["output"] (ReqArg Output "FILE")
+ "name of main output file",
+ Option ['t'] ["template"] (ReqArg Template "FILE")
+ "template file",
+ Option ['c'] ["cc"] (ReqArg Compiler "PROG")
+ "C compiler to use",
+ Option ['l'] ["ld"] (ReqArg Linker "PROG")
+ "linker to use",
+ Option ['C'] ["cflag"] (ReqArg CompFlag "FLAG")
+ "flag to pass to the C compiler",
+ Option ['I'] [] (ReqArg (CompFlag . ("-I"++)) "DIR")
+ "passed to the C compiler",
+ Option ['L'] ["lflag"] (ReqArg LinkFlag "FLAG")
+ "flag to pass to the linker",
+ Option ['i'] ["include"] (ReqArg include "FILE")
+ "as if placed in the source",
+ Option ['D'] ["define"] (ReqArg define "NAME[=VALUE]")
+ "as if placed in the source",
+ Option [] ["no-compile"] (NoArg NoCompile)
+ "stop after writing *_hsc_make.c",
+ Option ['v'] ["verbose"] (NoArg Verbose)
+ "dump commands to stderr",
+ Option ['?'] ["help"] (NoArg Help)
+ "display this help and exit",
+ Option ['V'] ["version"] (NoArg Version)
+ "output version information and exit" ]
+
main :: IO ()
main = do
- prog <- getProgName
- let header = "Usage: "++prog++" [OPTIONS] INPUT.hsc [...]"
+ prog <- getProgramName
+ let header = "Usage: "++prog++" [OPTIONS] INPUT.hsc [...]\n"
args <- getArgs
- case getOpt Permute options args of
- (flags, _, _)
- | any isHelp flags -> putStrLn (usageInfo header options)
- | any isVersion flags -> putStrLn version
+ let (flags, files, errs) = getOpt Permute options args
+
+ -- If there is no Template flag explicitly specified, try
+ -- to find one by looking near the executable. This only
+ -- 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
+ Just path -> do
+ let templ = path ++ "/template-hsc.h"
+ flg <- doesFileExist templ
+ if flg
+ then return ((Template templ):)
+ else return id
+ return (add_opt flags)
+ case (files, errs) of
+ (_, _)
+ | any isHelp flags_w_tpl -> bye (usageInfo header options)
+ | any isVersion flags_w_tpl -> bye version
where
isHelp Help = True; isHelp _ = False
isVersion Version = True; isVersion _ = False
- (_, [], []) -> putStrLn (prog++": No input files")
- (flags, files, []) -> mapM_ (processFile flags) files
- (_, _, errs) -> do
- mapM_ putStrLn errs
- putStrLn (usageInfo header options)
- exitFailure
+ ((_:_), []) -> mapM_ (processFile flags_w_tpl) files
+ (_, _ ) -> die (concat errs ++ usageInfo header options)
+
+getProgramName :: IO String
+getProgramName = liftM (`withoutSuffix` "-bin") getProgName
+ where str `withoutSuffix` suff
+ | suff `isSuffixOf` str = take (length str - length suff) str
+ | otherwise = str
+
+bye :: String -> IO a
+bye s = putStr s >> exitWith ExitSuccess
+
+die :: String -> IO a
+die s = hPutStr stderr s >> exitWith (ExitFailure 1)
processFile :: [Flag] -> String -> IO ()
-processFile flags name = do
- parsed <- parseFromFile parser name
- case parsed of
- Left err -> do print err; exitFailure
- Right toks -> output flags name toks
+processFile flags name
+ = do let file_name = dosifyPath name
+ s <- readFile file_name
+ case parser of
+ Parser p -> case p (SourcePos file_name 1) s of
+ Success _ _ _ toks -> output flags file_name toks
+ Failure (SourcePos name' line) msg ->
+ die (name'++":"++show line++": "++msg++"\n")
+
+------------------------------------------------------------------------
+-- A deterministic parser which remembers the text which has been parsed.
+
+newtype Parser a = Parser (SourcePos -> String -> ParseResult a)
+
+data ParseResult a = Success !SourcePos String String a
+ | Failure !SourcePos String
+
+data SourcePos = SourcePos String !Int
+
+updatePos :: SourcePos -> Char -> SourcePos
+updatePos pos@(SourcePos name line) ch = case ch of
+ '\n' -> SourcePos name (line + 1)
+ _ -> pos
+
+instance Monad Parser where
+ return a = Parser $ \pos s -> Success pos [] s a
+ Parser m >>= k =
+ Parser $ \pos s -> case m pos s of
+ Success pos' out1 s' a -> case k a of
+ Parser k' -> case k' pos' s' of
+ Success pos'' out2 imp'' b ->
+ Success pos'' (out1++out2) imp'' b
+ Failure pos'' msg -> Failure pos'' msg
+ Failure pos' msg -> Failure pos' msg
+ fail msg = Parser $ \pos _ -> Failure pos msg
+
+instance MonadPlus Parser where
+ mzero = fail "mzero"
+ Parser m `mplus` Parser n =
+ Parser $ \pos s -> case m pos s of
+ success@(Success _ _ _ _) -> success
+ Failure _ _ -> n pos s
+
+getPos :: Parser SourcePos
+getPos = Parser $ \pos s -> Success pos [] s pos
+
+setPos :: SourcePos -> Parser ()
+setPos pos = Parser $ \_ s -> Success pos [] s ()
+
+message :: Parser a -> String -> Parser a
+Parser m `message` msg =
+ Parser $ \pos s -> case m pos s of
+ success@(Success _ _ _ _) -> success
+ Failure pos' _ -> Failure pos' msg
+
+catchOutput_ :: Parser a -> Parser String
+catchOutput_ (Parser m) =
+ Parser $ \pos s -> case m pos s of
+ Success pos' out s' _ -> Success pos' [] s' out
+ Failure pos' msg -> Failure pos' msg
+
+fakeOutput :: Parser a -> String -> Parser a
+Parser m `fakeOutput` out =
+ Parser $ \pos s -> case m pos s of
+ Success pos' _ s' a -> Success pos' out s' a
+ Failure pos' msg -> Failure pos' msg
+
+lookAhead :: Parser String
+lookAhead = Parser $ \pos s -> Success pos [] s s
+
+satisfy :: (Char -> Bool) -> Parser Char
+satisfy p =
+ Parser $ \pos s -> case s of
+ c:cs | p c -> Success (updatePos pos c) [c] cs c
+ _ -> Failure pos "Bad character"
+
+char_ :: Char -> Parser ()
+char_ c = do
+ satisfy (== c) `message` (show c++" expected")
+ return ()
+
+anyChar_ :: Parser ()
+anyChar_ = do
+ satisfy (const True) `message` "Unexpected end of file"
+ return ()
+
+any2Chars_ :: Parser ()
+any2Chars_ = anyChar_ >> anyChar_
+
+many :: Parser a -> Parser [a]
+many p = many1 p `mplus` return []
+
+many1 :: Parser a -> Parser [a]
+many1 p = liftM2 (:) p (many p)
+
+many_ :: Parser a -> Parser ()
+many_ p = many1_ p `mplus` return ()
+
+many1_ :: Parser a -> Parser ()
+many1_ p = p >> many_ p
+
+manySatisfy, manySatisfy1 :: (Char -> Bool) -> Parser String
+manySatisfy = many . satisfy
+manySatisfy1 = many1 . satisfy
+
+manySatisfy_, manySatisfy1_ :: (Char -> Bool) -> Parser ()
+manySatisfy_ = many_ . satisfy
+manySatisfy1_ = many1_ . satisfy
+
+------------------------------------------------------------------------
+-- Parser of hsc syntax.
data Token
= Text SourcePos String
| Special SourcePos String String
parser :: Parser [Token]
-parser = many (text <|> special)
+parser = do
+ pos <- getPos
+ t <- catchOutput_ text
+ s <- lookAhead
+ rest <- case s of
+ [] -> return []
+ _:_ -> liftM2 (:) (special `fakeOutput` []) parser
+ return (if null t then rest else Text pos t : rest)
-text :: Parser Token
+text :: Parser ()
text = do
- pos <- getPosition
- liftM (Text pos . concat) $ many1
- ( many1 (satisfy (\ch -> not (isAlpha ch || ch `elem` "\"#'-_{")))
- <|> (do a <- satisfy (\ch -> isAlpha ch || ch == '_')
- b <- many (satisfy (\ch -> isAlphaNum ch || ch == '_' || ch == '\''))
- return (a:b))
- <|> (do char '\"'; a <- hsString '\"'; char '\"'; return ("\""++a++"\""))
- <|> (do try (string "##"); return "#")
- <|> (do char '\''; a <- hsString '\''; char '\''; return ("\'"++a++"\'"))
- <|> (do try (string "--"); a <- many (satisfy (/= '\n')); return ("--"++a))
- <|> string "-"
- <|> (do try (string "{-#"); optional (try linePragma); a <- hsComment; return ("{-#"++a))
- <|> (do try (string "{-"); a <- hsComment; return ("{-"++a))
- <|> string "{"
- <?> "Haskell source")
+ s <- lookAhead
+ case s of
+ [] -> return ()
+ c:_ | isAlpha c || c == '_' -> do
+ anyChar_
+ manySatisfy_ (\c' -> isAlphaNum c' || c' == '_' || c' == '\'')
+ text
+ c:_ | isHsSymbol c -> do
+ symb <- catchOutput_ (manySatisfy_ isHsSymbol)
+ case symb of
+ "#" -> return ()
+ '-':'-':symb' | all (== '-') symb' -> do
+ return () `fakeOutput` symb
+ manySatisfy_ (/= '\n')
+ text
+ _ -> do
+ return () `fakeOutput` unescapeHashes symb
+ text
+ '\"':_ -> do anyChar_; hsString '\"'; text
+ '\'':_ -> do anyChar_; hsString '\''; text
+ '{':'-':_ -> do any2Chars_; linePragma `mplus` hsComment; text
+ _:_ -> do anyChar_; text
+
+hsString :: Char -> Parser ()
+hsString quote = do
+ s <- lookAhead
+ case s of
+ [] -> return ()
+ c:_ | c == quote -> anyChar_
+ '\\':c:_
+ | isSpace c -> do
+ anyChar_
+ manySatisfy_ isSpace
+ char_ '\\' `mplus` return ()
+ hsString quote
+ | otherwise -> do any2Chars_; hsString quote
+ _:_ -> do anyChar_; hsString quote
+
+hsComment :: Parser ()
+hsComment = do
+ s <- lookAhead
+ case s of
+ [] -> return ()
+ '-':'}':_ -> any2Chars_
+ '{':'-':_ -> do any2Chars_; hsComment; hsComment
+ _:_ -> do anyChar_; hsComment
linePragma :: Parser ()
linePragma = do
- state <- getState
- spaces
- string "LINE"
- skipMany1 space
- line <- many1 digit
- skipMany1 space
- char '\"'
- file <- many (satisfy (/= '\"'))
- char '\"'
- spaces
- string "#-}"
- setState state
- setPosition (newPos file (read line - 1) 1)
-
-hsComment :: Parser String
-hsComment =
- ( (do a <- many1 (noneOf "-{"); b <- hsComment; return (a++b))
- <|> try (string "-}")
- <|> (do char '-'; b <- hsComment; return ('-':b))
- <|> (do try (string "{-"); a <- hsComment; b <- hsComment; return ("{-"++a++b))
- <|> (do char '{'; b <- hsComment; return ('{':b))
- <?> "Haskell comment")
-
-hsString :: Char -> Parser String
-hsString quote =
- liftM concat $ many
- ( many1 (noneOf (quote:"\n\\"))
- <|> (do char '\\'; a <- escape; return ('\\':a))
- <?> "Haskell character or string")
+ char_ '#'
+ manySatisfy_ isSpace
+ satisfy (\c -> c == 'L' || c == 'l')
+ satisfy (\c -> c == 'I' || c == 'i')
+ satisfy (\c -> c == 'N' || c == 'n')
+ satisfy (\c -> c == 'E' || c == 'e')
+ manySatisfy1_ isSpace
+ line <- liftM read $ manySatisfy1 isDigit
+ manySatisfy1_ isSpace
+ char_ '\"'
+ name <- manySatisfy (/= '\"')
+ char_ '\"'
+ manySatisfy_ isSpace
+ char_ '#'
+ char_ '-'
+ char_ '}'
+ setPos (SourcePos name (line - 1))
+
+isHsSymbol :: Char -> Bool
+isHsSymbol '!' = True; isHsSymbol '#' = True; isHsSymbol '$' = True
+isHsSymbol '%' = True; isHsSymbol '&' = True; isHsSymbol '*' = True
+isHsSymbol '+' = True; isHsSymbol '.' = True; isHsSymbol '/' = True
+isHsSymbol '<' = True; isHsSymbol '=' = True; isHsSymbol '>' = True
+isHsSymbol '?' = True; isHsSymbol '@' = True; isHsSymbol '\\' = True
+isHsSymbol '^' = True; isHsSymbol '|' = True; isHsSymbol '-' = True
+isHsSymbol '~' = True
+isHsSymbol _ = False
+
+unescapeHashes :: String -> String
+unescapeHashes [] = []
+unescapeHashes ('#':'#':s) = '#' : unescapeHashes s
+unescapeHashes (c:s) = c : unescapeHashes s
+
+lookAheadC :: Parser String
+lookAheadC = liftM joinLines lookAhead
where
- escape = (do a <- many1 (satisfy isSpace); char '\\'; return (a++"\\"))
- <|> (do a <- anyChar; return [a])
+ joinLines [] = []
+ joinLines ('\\':'\n':s) = joinLines s
+ joinLines (c:s) = c : joinLines s
+
+satisfyC :: (Char -> Bool) -> Parser Char
+satisfyC p = do
+ s <- lookAhead
+ case s of
+ '\\':'\n':_ -> do any2Chars_ `fakeOutput` []; satisfyC p
+ _ -> satisfy p
+
+charC_ :: Char -> Parser ()
+charC_ c = do
+ satisfyC (== c) `message` (show c++" expected")
+ return ()
+
+anyCharC_ :: Parser ()
+anyCharC_ = do
+ satisfyC (const True) `message` "Unexpected end of file"
+ return ()
+
+any2CharsC_ :: Parser ()
+any2CharsC_ = anyCharC_ >> anyCharC_
+
+manySatisfyC :: (Char -> Bool) -> Parser String
+manySatisfyC = many . satisfyC
+
+manySatisfyC_ :: (Char -> Bool) -> Parser ()
+manySatisfyC_ = many_ . satisfyC
special :: Parser Token
special = do
- pos <- getPosition
- char '#'
- skipMany (oneOf " \t")
- key <- liftM2 (:) (letter <|> char '_') (many (alphaNum <|> char '_'))
- <?> "hsc directive"
- skipMany (oneOf " \t")
- arg <- argument pzero
+ manySatisfyC_ (\c -> isSpace c && c /= '\n')
+ s <- lookAheadC
+ case s of
+ '{':_ -> do
+ anyCharC_
+ manySatisfyC_ isSpace
+ sp <- keyArg (== '\n')
+ charC_ '}'
+ return sp
+ _ -> keyArg (const False)
+
+keyArg :: (Char -> Bool) -> Parser Token
+keyArg eol = do
+ pos <- getPos
+ key <- keyword `message` "hsc keyword or '{' expected"
+ manySatisfyC_ (\c' -> isSpace c' && c' /= '\n' || eol c')
+ arg <- catchOutput_ (argument eol)
return (Special pos key arg)
-argument :: Parser String -> Parser String
-argument eol =
- liftM concat $ many
- ( many1 (noneOf "\n\"\'()/[\\]{}")
- <|> eol
- <|> (do char '\"'; a <- cString '\"'; char '\"'; return ("\""++a++"\""))
- <|> (do char '\''; a <- cString '\''; char '\''; return ("\'"++a++"\'"))
- <|> (do char '('; a <- nested; char ')'; return ("("++a++")"))
- <|> (do try (string "/*"); cComment; return " ")
- <|> (do try (string "//"); skipMany (satisfy (/= '\n')); return " ")
- <|> string "/"
- <|> (do char '['; a <- nested; char ']'; return ("["++a++"]"))
- <|> (do char '\\'; a <- anyChar; return $ if a == '\n' then [] else ['\\',a])
- <|> (do char '{'; a <- nested; char '}'; return ("{"++a++"}"))
- <?> "C expression")
- where nested = argument (string "\n")
+keyword :: Parser String
+keyword = do
+ c <- satisfyC (\c' -> isAlpha c' || c' == '_')
+ cs <- manySatisfyC (\c' -> isAlphaNum c' || c' == '_')
+ return (c:cs)
+
+argument :: (Char -> Bool) -> Parser ()
+argument eol = do
+ s <- lookAheadC
+ case s of
+ [] -> return ()
+ c:_ | eol c -> do anyCharC_; argument eol
+ '\n':_ -> return ()
+ '\"':_ -> do anyCharC_; cString '\"'; argument eol
+ '\'':_ -> do anyCharC_; cString '\''; argument eol
+ '(':_ -> do anyCharC_; nested ')'; argument eol
+ ')':_ -> return ()
+ '/':'*':_ -> do any2CharsC_; cComment; argument eol
+ '/':'/':_ -> do
+ any2CharsC_; manySatisfyC_ (/= '\n'); argument eol
+ '[':_ -> do anyCharC_; nested ']'; argument eol
+ ']':_ -> return ()
+ '{':_ -> do anyCharC_; nested '}'; argument eol
+ '}':_ -> return ()
+ _:_ -> do anyCharC_; argument eol
+
+nested :: Char -> Parser ()
+nested c = do argument (== '\n'); charC_ c
cComment :: Parser ()
-cComment =
- ( (do skipMany1 (noneOf "*"); cComment)
- <|> (do try (string "*/"); return ())
- <|> (do char '*'; cComment)
- <?> "C comment")
-
-cString :: Char -> Parser String
-cString quote =
- liftM concat $ many
- ( many1 (noneOf (quote:"\n\\"))
- <|> (do char '\\'; a <- anyChar; return ['\\',a])
- <?> "C character or string")
+cComment = do
+ s <- lookAheadC
+ case s of
+ [] -> return ()
+ '*':'/':_ -> do any2CharsC_
+ _:_ -> do anyCharC_; cComment
+
+cString :: Char -> Parser ()
+cString quote = do
+ s <- lookAheadC
+ case s of
+ [] -> return ()
+ c:_ | c == quote -> anyCharC_
+ '\\':_:_ -> do any2CharsC_; cString quote
+ _:_ -> do anyCharC_; cString quote
+
+------------------------------------------------------------------------
+-- Write the output files.
+
+splitName :: String -> (String, String)
+splitName name =
+ case break (== '/') name of
+ (file, []) -> ([], file)
+ (dir, sep:rest) -> (dir++sep:restDir, restFile)
+ where
+ (restDir, restFile) = splitName rest
+
+splitExt :: String -> (String, String)
+splitExt name =
+ case break (== '.') name of
+ (base, []) -> (base, [])
+ (base, sepRest@(sep:rest))
+ | null restExt -> (base, sepRest)
+ | otherwise -> (base++sep:restBase, restExt)
+ where
+ (restBase, restExt) = splitExt rest
output :: [Flag] -> String -> [Token] -> IO ()
-output flags name toks = let
- baseName = case reverse name of
- 'c':base -> reverse base
- _ -> name++".hs"
- cProgName = baseName++"c_make_hs.c"
- oProgName = baseName++"c_make_hs.o"
- progName = baseName++"c_make_hs"
- outHsName = baseName
- outHName = baseName++".h"
- outCName = baseName++".c"
+output flags name toks = do
+
+ (outName, outDir, outBase) <- case [f | Output f <- flags] of
+ [] -> 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
+ in return (f, dir, base)
+ _ -> onlyOne "output file"
- execProgName = case progName of
- '/':_ -> progName
- _ -> "./"++progName
+ let cProgName = outDir++outBase++"_hsc_make.c"
+ oProgName = outDir++outBase++"_hsc_make.o"
+ progName = outDir++outBase++"_hsc_make"
+#if defined(mingw32_HOST_OS) || defined(__CYGWIN32__)
+-- 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
+
+ let execProgName
+ | null outDir = dosifyPath ("./" ++ progName)
+ | otherwise = progName
- specials = [(pos, key, arg) | Special pos key arg <- toks]
+ let specials = [(pos, key, arg) | Special pos key arg <- toks]
- needsC = any (\(_, key, _) -> key == "def") specials
- needsH = needsC
+ let needsC = any (\(_, key, _) -> key == "def") specials
+ needsH = needsC
- includeGuard = map fixChar outHName
- where
- fixChar c | isAlphaNum c = toUpper c
- | otherwise = '_'
+ let includeGuard = map fixChar outHName
+ where
+ fixChar c | isAlphaNum c = toUpper c
+ | otherwise = '_'
+
+#ifdef __HUGS__
+ compiler <- case [c | Compiler c <- flags] of
+ [] -> return "gcc"
+ [c] -> return c
+ _ -> onlyOne "compiler"
- in do
+ 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
+ Nothing -> return def
+ Just x -> do
+ let ghc_path = dosifyPath (x ++ "bin/ghc.exe")
+ flg <- doesFileExist ghc_path
+ if flg
+ 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
- [] -> return "ghc"
+ [] -> locateGhc "ghc"
[c] -> return c
_ -> onlyOne "compiler"
+
linker <- case [l | Linker l <- flags] of
- [] -> return "gcc"
+ [] -> locateGhc compiler
[l] -> return l
_ -> onlyOne "linker"
-
+#endif
+
writeFile cProgName $
- concat ["#include \""++t++"\"\n" | Template t <- flags]++
- concat ["#include "++f++"\n" | Include f <- flags]++
- outHeaderCProg specials++
- "\nint main (void)\n{\n"++
+ concatMap outFlagHeaderCProg flags++
+ concatMap outHeaderCProg specials++
+ "\nint main (int argc, char *argv [])\n{\n"++
outHeaderHs flags (if needsH then Just outHName else Nothing) specials++
- outHsLine (newPos name 0 1)++
+ outHsLine (SourcePos name 0)++
concatMap outTokenHs toks++
" return 0;\n}\n"
- compilerStatus <- system $
- compiler++
- " -c"++
- concat [" "++f | CompFlag f <- flags]++
- " "++cProgName++
- " -o "++oProgName
+ -- 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 <- rawSystemL beVerbose compiler
+ ( ["-c"]
+ ++ [f | CompFlag f <- flags]
+ ++ [cProgName]
+ ++ ["-o", oProgName]
+ )
+
case compilerStatus of
e@(ExitFailure _) -> exitWith e
_ -> return ()
removeFile cProgName
- linkerStatus <- system $
- 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 ()
removeFile oProgName
- system (execProgName++" >"++outHsName)
+ progStatus <- rawSystemWithStdOutL beVerbose execProgName [] outName
removeFile progName
+ case progStatus of
+ e@(ExitFailure _) -> exitWith e
+ _ -> 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"++
- concat ["#include "++n++"\n" | Include n <- flags]++
+ "#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"
when needsC $ writeFile outCName $
- "#include \""++outHName++"\"\n"++
+ "#include \""++outHFile++"\"\n"++
concatMap outTokenC specials
+ -- NB. outHFile not outHName; works better when processed
+ -- by gcc or mkdependC.
+
+rawSystemL :: Bool -> FilePath -> [String] -> IO ExitCode
+rawSystemL flg prog args = do
+ let cmdLine = prog++" "++unwords args
+ when flg $ hPutStrLn stderr ("Executing: " ++ cmdLine)
+#ifndef HAVE_rawSystem
+ system cmdLine
+#else
+ rawSystem prog args
+#endif
+
+rawSystemWithStdOutL :: Bool -> FilePath -> [String] -> FilePath -> IO ExitCode
+rawSystemWithStdOutL flg prog args outFile = do
+ let cmdLine = prog++" "++unwords args++" >"++outFile
+ when flg (hPutStrLn stderr ("Executing: " ++ cmdLine))
+#ifndef HAVE_runProcess
+ system cmdLine
+#else
+ hOut <- openFile outFile WriteMode
+ process <- runProcess prog args Nothing Nothing Nothing (Just hOut) Nothing
+ res <- waitForProcess process
+ hClose hOut
+ return res
+#endif
onlyOne :: String -> IO a
-onlyOne what = do
- putStrLn ("Only one "++what++" may be specified")
- exitFailure
-
-outHeaderCProg :: [(SourcePos, String, String)] -> String
-outHeaderCProg =
- concatMap $ \(pos, key, arg) -> case key of
- "include" -> outCLine pos++"#include "++arg++"\n"
- "define" -> outCLine pos++"#define "++arg++"\n"
- "undef" -> outCLine pos++"#undef "++arg++"\n"
- "def" -> case arg of
- 's':'t':'r':'u':'c':'t':' ':_ -> outCLine pos++arg++"\n"
- 't':'y':'p':'e':'d':'e':'f':' ':_ -> outCLine pos++arg++"\n"
- _ -> ""
- _ | conditional key -> outCLine pos++"#"++key++" "++arg++"\n"
- "let" -> case break (== '=') arg of
- (_, "") -> ""
- (header, _:body) -> case break isSpace header of
- (name, args) ->
- outCLine pos++
- "#define hsc_"++name++"("++dropWhile isSpace args++") \
- \printf ("++joinLines body++");\n"
+onlyOne what = die ("Only one "++what++" may be specified\n")
+
+outFlagHeaderCProg :: Flag -> String
+outFlagHeaderCProg (Template t) = "#include \""++t++"\"\n"
+outFlagHeaderCProg (Include f) = "#include "++f++"\n"
+outFlagHeaderCProg (Define n Nothing) = "#define "++n++" 1\n"
+outFlagHeaderCProg (Define n (Just v)) = "#define "++n++" "++v++"\n"
+outFlagHeaderCProg _ = ""
+
+outHeaderCProg :: (SourcePos, String, String) -> String
+outHeaderCProg (pos, key, arg) = case key of
+ "include" -> outCLine pos++"#include "++arg++"\n"
+ "define" -> outCLine pos++"#define "++arg++"\n"
+ "undef" -> outCLine pos++"#undef "++arg++"\n"
+ "def" -> case arg of
+ 's':'t':'r':'u':'c':'t':' ':_ -> outCLine pos++arg++"\n"
+ 't':'y':'p':'e':'d':'e':'f':' ':_ -> outCLine pos++arg++"\n"
_ -> ""
- where
+ _ | conditional key -> outCLine pos++"#"++key++" "++arg++"\n"
+ "let" -> case break (== '=') arg of
+ (_, "") -> ""
+ (header, _:body) -> case break isSpace header of
+ (name, args) ->
+ outCLine pos++
+ "#define hsc_"++name++"("++dropWhile isSpace args++") " ++
+ "printf ("++joinLines body++");\n"
+ _ -> ""
+ 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"++
- includeH++
- concatMap outSpecial toks
+ "#if " ++
+ "__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 -> outInclude ("\""++f++"\"")
where
+ outFlag (Include f) = outInclude f
+ outFlag (Define n Nothing) = outOption ("-optc-D"++n)
+ outFlag (Define n (Just v)) = outOption ("-optc-D"++n++"="++v)
+ outFlag _ = ""
outSpecial (pos, key, arg) = case key of
- "include" -> case inH of
- Nothing -> outOption ("-#include "++arg)
- Just _ -> ""
- "define" -> case inH of
- Nothing | goodForOptD arg -> outOption ("-optc-D"++toOptD arg)
- _ -> ""
- _ | conditional key -> outCLine pos++"#"++key++" "++arg++"\n"
- _ -> ""
+ "include" -> outInclude arg
+ "define" | goodForOptD arg -> outOption ("-optc-D"++toOptD arg)
+ | otherwise -> ""
+ _ | conditional key -> outCLine pos++"#"++key++" "++arg++"\n"
+ _ -> ""
goodForOptD arg = case arg of
"" -> True
c:_ | isSpace c -> True
toOptD arg = case break isSpace arg of
(name, "") -> name
(name, _:value) -> name++'=':dropWhile isSpace value
- includeH = concat [
- outOption ("-#include "++name++"")
- | name <- case inH of
- Nothing -> [name | Include name <- flags]
- Just name -> ["\""++name++"\""]]
- outOption s = " printf (\"{-# OPTIONS %s #-}\\n\", \""++
- showCString s++"\");\n"
+ outOption s =
+ "#if __GLASGOW_HASKELL__ && __GLASGOW_HASKELL__ < 603\n" ++
+ " printf (\"{-# OPTIONS %s #-}\\n\", \""++
+ showCString s++"\");\n"++
+ "#else\n"++
+ " printf (\"{-# OPTIONS_GHC %s #-}\\n\", \""++
+ showCString s++"\");\n"++
+ "#endif\n"
+ outInclude s =
+ "#if __GLASGOW_HASKELL__ && __GLASGOW_HASKELL__ < 603\n" ++
+ " printf (\"{-# OPTIONS -#include %s #-}\\n\", \""++
+ showCString s++"\");\n"++
+ "#else\n"++
+ " printf (\"{-# INCLUDE %s #-}\\n\", \""++
+ showCString s++"\");\n"++
+ "#endif\n"
outTokenHs :: Token -> String
-outTokenHs (Text pos text) =
- case break (== '\n') text of
- (all, []) -> outText all
+outTokenHs (Text pos txt) =
+ case break (== '\n') txt of
+ (allTxt, []) -> outText allTxt
(first, _:rest) ->
outText (first++"\n")++
outHsLine pos++
"def" -> ""
_ | conditional key -> outCLine pos++"#"++key++" "++arg++"\n"
"let" -> ""
+ "enum" -> outCLine pos++outEnum arg
_ -> outCLine pos++" hsc_"++key++" ("++arg++");\n"
+outEnum :: String -> String
+outEnum arg =
+ case break (== ',') arg of
+ (_, []) -> ""
+ (t, _:afterT) -> case break (== ',') afterT of
+ (f, afterF) -> let
+ enums [] = ""
+ enums (_:s) = case break (== ',') s of
+ (enum, rest) -> let
+ this = case break (== '=') $ dropWhile isSpace enum of
+ (name, []) ->
+ " hsc_enum ("++t++", "++f++", " ++
+ "hsc_haskellize (\""++name++"\"), "++
+ name++");\n"
+ (hsName, _:cName) ->
+ " 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++" 1\n"
+outFlagH (Define n (Just v)) = "#define "++n++" "++v++"\n"
+outFlagH _ = ""
+
outTokenH :: (SourcePos, String, String) -> String
outTokenH (pos, key, arg) =
case key of
'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"
_ -> ""
"def" -> case arg of
's':'t':'r':'u':'c':'t':' ':_ -> ""
't':'y':'p':'e':'d':'e':'f':' ':_ -> ""
- 'i':'n':'l':'i':'n':'e':' ':_ ->
- outCLine pos++
- "#ifndef __GNUC__\n\
- \extern\n\
- \#endif\n"++
- header++
- "\n#ifndef __GNUC__\n\
- \;\n\
- \#else\n"++
- body++
- "\n#endif\n"
+ 'i':'n':'l':'i':'n':'e':' ':arg' ->
+ case span (\c -> c /= '{' && c /= '=') arg' of
+ (header, body) ->
+ outCLine pos++
+ "#ifndef __GNUC__\n" ++
+ "extern inline\n" ++
+ "#endif\n"++
+ header++
+ "\n#ifndef __GNUC__\n" ++
+ ";\n" ++
+ "#else\n"++
+ body++
+ "\n#endif\n"
_ -> outCLine pos++arg++"\n"
- where (header, body) = span (\c -> c/='{' && c/='=') arg
_ | conditional key -> outCLine pos++"#"++key++" "++arg++"\n"
_ -> ""
conditional :: String -> Bool
-conditional "if" = True
-conditional "ifdef" = True
-conditional "ifndef" = True
-conditional "elif" = True
-conditional "else" = True
-conditional "endif" = True
-conditional "error" = True
-conditional _ = False
-
-sourceFileName :: SourcePos -> String
-sourceFileName pos = fileName (sourceName pos)
- where
- fileName s = case break (== '/') s of
- (name, []) -> name
- (_, _:rest) -> fileName rest
+conditional "if" = True
+conditional "ifdef" = True
+conditional "ifndef" = True
+conditional "elif" = True
+conditional "else" = True
+conditional "endif" = True
+conditional "error" = True
+conditional "warning" = True
+conditional _ = False
outCLine :: SourcePos -> String
-outCLine pos =
- "# "++show (sourceLine pos)++
- " \""++showCString (sourceFileName pos)++"\"\n"
+outCLine (SourcePos name line) =
+ "#line "++show line++" \""++showCString (snd (splitName name))++"\"\n"
outHsLine :: SourcePos -> String
-outHsLine pos =
- " hsc_line ("++
- show (sourceLine pos + 1)++", \""++
- showCString (sourceFileName pos)++"\");\n"
+outHsLine (SourcePos name line) =
+ " hsc_line ("++show (line + 1)++", \""++
+ showCString name++"\");\n"
showCString :: String -> String
showCString = concatMap showCChar
intToDigit (ord c `quot` 64),
intToDigit (ord c `quot` 8 `mod` 8),
intToDigit (ord c `mod` 8)]
+
+
+
+-----------------------------------------
+-- Modified version from ghc/compiler/SysTools
+-- Convert paths foo/baz to foo\baz on Windows
+
+subst :: Char -> Char -> String -> String
+#if defined(mingw32_HOST_OS) || defined(__CYGWIN32__)
+subst a b = map (\x -> if x == a then b else x)
+#else
+subst _ _ = id
+#endif
+
+dosifyPath :: String -> String
+dosifyPath = subst '/' '\\'
+
+-- (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
+getExecDir :: String -> IO (Maybe String)
+getExecDir cmd =
+ getExecPath >>= maybe (return Nothing) removeCmdSuffix
+ where unDosifyPath = subst '\\' '/'
+ initN n = reverse . drop n . reverse
+ removeCmdSuffix = return . Just . initN (length cmd) . unDosifyPath
+
+getExecPath :: IO (Maybe String)
+#if defined(__HUGS__)
+getExecPath = liftM Just getProgName
+#elif defined(mingw32_HOST_OS)
+getExecPath =
+ allocaArray len $ \buf -> do
+ ret <- getModuleFileName nullPtr buf len
+ if ret == 0 then return Nothing
+ else liftM Just $ peekCString buf
+ where len = 2048 -- Plenty, PATH_MAX is 512 under Win32.
+
+foreign import stdcall unsafe "GetModuleFileNameA"
+ getModuleFileName :: Ptr () -> CString -> Int -> IO Int32
+#else
+getExecPath = return Nothing
+#endif
projects / ghc-hetmet.git / blobdiff