libswfdec/swfdec_as_native_function.h

   1 /* Swfdec
   2  * Copyright (C) 2007 Benjamin Otte <otte@gnome.org>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA  02110-1301  USA
  18  */
  19
  20 #ifndef _SWFDEC_AS_NATIVE_FUNCTION_H_
  21 #define _SWFDEC_AS_NATIVE_FUNCTION_H_
  22
  23 #include <libswfdec/swfdec_as_function.h>
  24 #include <libswfdec/swfdec_as_types.h>
  25
  26 G_BEGIN_DECLS
  27
  28 typedef struct _SwfdecAsNativeFunction SwfdecAsNativeFunction;
  29 typedef struct _SwfdecAsNativeFunctionClass SwfdecAsNativeFunctionClass;
  30
  31 #define SWFDEC_TYPE_AS_NATIVE_FUNCTION                    (swfdec_as_native_function_get_type())
  32 #define SWFDEC_IS_AS_NATIVE_FUNCTION(obj)                 (G_TYPE_CHECK_INSTANCE_TYPE ((obj), SWFDEC_TYPE_AS_NATIVE_FUNCTION))
  33 #define SWFDEC_IS_AS_NATIVE_FUNCTION_CLASS(klass)         (G_TYPE_CHECK_CLASS_TYPE ((klass), SWFDEC_TYPE_AS_NATIVE_FUNCTION))
  34 #define SWFDEC_AS_NATIVE_FUNCTION(obj)                    (G_TYPE_CHECK_INSTANCE_CAST ((obj), SWFDEC_TYPE_AS_NATIVE_FUNCTION, SwfdecAsNativeFunction))
  35 #define SWFDEC_AS_NATIVE_FUNCTION_CLASS(klass)            (G_TYPE_CHECK_CLASS_CAST ((klass), SWFDEC_TYPE_AS_NATIVE_FUNCTION, SwfdecAsNativeFunctionClass))
  36 #define SWFDEC_AS_NATIVE_FUNCTION_GET_CLASS(obj)          (G_TYPE_INSTANCE_GET_CLASS ((obj), SWFDEC_TYPE_AS_NATIVE_FUNCTION, SwfdecAsNativeFunctionClass))
  37
  38 /* FIXME: do two obejcts, one for scripts and one for native? */
  39 struct _SwfdecAsNativeFunction {
  40   /*< private >*/
  41   SwfdecAsFunction      function;
  42
  43   SwfdecAsNative        native;         /* native call or NULL when script */
  44   char *                name;           /* function name */
  45   /* checks for calling this function */
  46   GType                 type;           /* required type for this object when caling function */
  47   guint                 min_args;       /* minimum number of required arguments */
  48   /* constructor info */
  49   GType                 construct_type; /* type used when used as a constructor or 0 */
  50   guint                 construct_size; /* instance size of type */
  51 };
  52
  53 struct _SwfdecAsNativeFunctionClass {
  54   SwfdecAsFunctionClass function_class;
  55 };
  56
  57 GType           swfdec_as_native_function_get_type      (void);
  58
  59 SwfdecAsFunction *swfdec_as_native_function_new (SwfdecAsContext *      context,
  60                                                  const char *           name,
  61                                                  SwfdecAsNative         native,
  62                                                  guint                  min_args,
  63                                                  SwfdecAsObject *       prototype);
  64
  65 void            swfdec_as_native_function_set_object_type
  66                                                 (SwfdecAsNativeFunction *function,
  67                                                  GType                  type);
  68 void            swfdec_as_native_function_set_construct_type
  69                                                 (SwfdecAsNativeFunction *function,
  70                                                  GType                  type);
  71
  72 gboolean        swfdec_as_native_function_check (SwfdecAsContext *      cx,
  73                                                  SwfdecAsObject *       object,
  74                                                  GType                  type,
  75                                                  gpointer *             result,
  76                                                  guint                  argc,
  77                                                  SwfdecAsValue *        argv,
  78                                                  const char *           args,
  79                                                  ...);
  80 gboolean        swfdec_as_native_function_checkv(SwfdecAsContext *      cx,
  81                                                  SwfdecAsObject *       object,
  82                                                  GType                  type,
  83                                                  gpointer *             result,
  84                                                  guint                  argc,
  85                                                  SwfdecAsValue *        argv,
  86                                                  const char *           args,
  87                                                  va_list                varargs);
  88 #define SWFDEC_AS_CHECK(type,result,...) G_STMT_START {\
  89   if (!swfdec_as_native_function_check (cx, object, type, (gpointer) result, argc, argv, __VA_ARGS__)) \
  90     return; \
  91 }G_STMT_END
  92
  93
  94 G_END_DECLS
  95 #endif