*)
let can_generate style =
let check_no_bad_args =
- List.for_all (function Bool _ | Int _ -> false | _ -> true)
+ List.for_all (function Bool _ -> false | _ -> true)
in
match style with
| RErr, args -> check_no_bad_args args
) where
import Foreign
import Foreign.C
+import Foreign.C.Types
import IO
import Control.Exception
import Data.Typeable
pr "%s %s = do\n" name
(String.concat " " ("h" :: List.map name_of_argt (snd style)));
pr " r <- ";
+ (* Convert pointer arguments using with* functions. *)
List.iter (
function
| FileIn n
| String n -> pr "withCString %s $ \\%s -> " n n
| OptString n -> pr "maybeWith withCString %s $ \\%s -> " n n
| StringList n -> pr "withMany withCString %s $ \\%s -> withArray0 nullPtr %s $ \\%s -> " n n n n
- | Bool n ->
- (* XXX this doesn't work *)
- pr " let\n";
- pr " %s = case %s of\n" n n;
- pr " False -> 0\n";
- pr " True -> 1\n";
- pr " in fromIntegral %s $ \\%s ->\n" n n
- | Int n -> pr "fromIntegral %s $ \\%s -> " n n
+ | Bool _ | Int _ -> ()
) (snd style);
+ (* Convert integer arguments. *)
+ let args =
+ List.map (
+ function
+ | Bool n -> sprintf "(fromIntegral %s)" n
+ | Int n -> sprintf "(fromIntegral %s)" n
+ | FileIn n | FileOut n | String n | OptString n | StringList n -> n
+ ) (snd style) in
pr "withForeignPtr h (\\p -> c_%s %s)\n" name
- (String.concat " " ("p" :: List.map name_of_argt (snd style)));
+ (String.concat " " ("p" :: args));
(match fst style with
| RErr | RInt _ | RInt64 _ | RBool _ ->
pr " if (r == -1)\n";