X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Futils%2Fhsc2hs%2FMain.hs;h=e2cfbb75784e84b01056a342ef04db1a4bccf552;hb=6458c2c59780ea01a79f3c31b9b2545a0241606d;hp=52e6911861b0e31882e0f62f3e2f939fd2dace18;hpb=954900bfa686ec37561da25bf986c2e5bd4edaf0;p=ghc-hetmet.git

diff --git a/ghc/utils/hsc2hs/Main.hs b/ghc/utils/hsc2hs/Main.hs
index 52e6911..e2cfbb7 100644
--- a/ghc/utils/hsc2hs/Main.hs
+++ b/ghc/utils/hsc2hs/Main.hs
@@ -1,7 +1,7 @@
-{-# OPTIONS -fffi #-}
+{-# OPTIONS -fffi -cpp #-}
 
 ------------------------------------------------------------------------
--- $Id: Main.hs,v 1.57 2004/06/27 20:41:07 panne Exp $
+-- $Id: Main.hs,v 1.60 2004/08/13 13:11:21 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.
@@ -19,7 +19,7 @@ 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)
@@ -563,7 +563,10 @@ output flags name toks = do
         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
 
 
     
@@ -595,17 +598,16 @@ output flags name toks = do
         _                 -> 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"
@@ -646,8 +648,8 @@ outHeaderCProg (pos, key, arg) = case key of
         (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
     joinLines = concat . intersperse " \\\n" . lines
@@ -655,11 +657,11 @@ outHeaderCProg (pos, key, arg) = case key of
 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++"\"")
@@ -717,12 +719,12 @@ outEnum arg =
                     (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
@@ -743,9 +745,9 @@ outTokenH (pos, key, arg) =
             '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
@@ -762,13 +764,13 @@ outTokenC (pos, key, arg) =
 		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"