Commit 1f516e82 authored by ross's avatar ross
Browse files

[project @ 2005-01-24 00:36:03 by ross]

make hsc2hs work with Hugs
parent 1856c4c7
{-# OPTIONS -fffi -cpp #-}
------------------------------------------------------------------------
-- $Id: Main.hs,v 1.66 2005/01/06 14:55:02 malcolm Exp $
-- $Id: Main.hs,v 1.67 2005/01/24 00:36:03 ross 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.
......@@ -11,7 +11,7 @@
--
-- See the documentation in the Users' Guide for more details.
#if __GLASGOW_HASKELL__ >= 504 || __NHC__ >= 114
#if __GLASGOW_HASKELL__ >= 504 || __NHC__ >= 114 || __HUGS__
import System.Console.GetOpt
#else
import GetOpt
......@@ -24,7 +24,7 @@ import Char (isAlpha, isAlphaNum, isSpace, isDigit, toUpper, intToDigit
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
......@@ -112,12 +112,16 @@ main = do
-- 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
......@@ -529,6 +533,17 @@ output flags name toks = do
fixChar c | isAlphaNum c = toUpper c
| otherwise = '_'
#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
......@@ -561,6 +576,7 @@ output flags name toks = do
[] -> locateGhc compiler
[l] -> return l
_ -> onlyOne "linker"
#endif
writeFile cProgName $
concatMap outFlagHeaderCProg flags++
......@@ -838,21 +854,29 @@ showCString = concatMap showCChar
-- 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
......@@ -867,8 +891,5 @@ foreign import stdcall unsafe "GetModuleFileNameA"
getModuleFileName :: Ptr () -> CString -> Int -> IO Int32
#else
dosifyPath xs = xs
getExecDir :: String -> IO (Maybe String)
getExecDir _ = return Nothing
#endif
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