libswfdec/swfdec_as_types.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_TYPES_H_
  21 #define _SWFDEC_AS_TYPES_H_
  22
  23 #include <glib-object.h>
  24
  25 G_BEGIN_DECLS
  26
  27 /* fundamental types */
  28 typedef enum {
  29   SWFDEC_AS_TYPE_UNDEFINED = 0,
  30   SWFDEC_AS_TYPE_BOOLEAN,
  31   SWFDEC_AS_TYPE_INT, /* unimplemented, but reserved if someone wants it */
  32   SWFDEC_AS_TYPE_NUMBER,
  33   SWFDEC_AS_TYPE_STRING,
  34   SWFDEC_AS_TYPE_NULL,
  35   SWFDEC_AS_TYPE_OBJECT
  36 } SwfdecAsValueType;
  37
  38 typedef struct _SwfdecAsArray SwfdecAsArray;
  39 typedef struct _SwfdecAsContext SwfdecAsContext;
  40 typedef struct _SwfdecAsDebugger SwfdecAsDebugger;
  41 typedef struct _SwfdecAsFrame SwfdecAsFrame;
  42 typedef struct _SwfdecAsFunction SwfdecAsFunction;
  43 typedef struct _SwfdecAsObject SwfdecAsObject;
  44 typedef struct _SwfdecAsScope SwfdecAsScope;
  45 typedef struct _SwfdecAsStack SwfdecAsStack;
  46 typedef struct _SwfdecAsValue SwfdecAsValue;
  47 typedef void (* SwfdecAsNative) (SwfdecAsContext *      context,
  48                                  SwfdecAsObject *       thisp,
  49                                  guint                  argc,
  50                                  SwfdecAsValue *        argv,
  51                                  SwfdecAsValue *        retval);
  52 typedef struct _SwfdecScript SwfdecScript;
  53
  54
  55 /* IMPORTANT: a SwfdecAsValue memset to 0 is a valid undefined value */
  56 struct _SwfdecAsValue {
  57   SwfdecAsValueType     type;
  58   /*< private >*/
  59   union {
  60     gboolean            boolean;
  61     double              number;
  62     const char *        string;
  63     SwfdecAsObject *    object;
  64   } value;
  65 };
  66
  67 #define SWFDEC_IS_AS_VALUE(val) ((val) != NULL && (val)->type <= SWFDEC_TYPE_AS_OBJECT)
  68
  69 #define SWFDEC_AS_VALUE_IS_UNDEFINED(val) ((val)->type == SWFDEC_AS_TYPE_UNDEFINED)
  70 #define SWFDEC_AS_VALUE_SET_UNDEFINED(val) (val)->type = SWFDEC_AS_TYPE_UNDEFINED
  71
  72 #define SWFDEC_AS_VALUE_IS_BOOLEAN(val) ((val)->type == SWFDEC_AS_TYPE_BOOLEAN)
  73 #define SWFDEC_AS_VALUE_GET_BOOLEAN(val) ((val)->value.boolean)
  74 #define SWFDEC_AS_VALUE_SET_BOOLEAN(val,b) G_STMT_START { \
  75   SwfdecAsValue *__val = (val); \
  76   gboolean __tmp = (b); \
  77   g_assert (__tmp == TRUE || __tmp == FALSE); \
  78   (__val)->value.boolean = __tmp; \
  79   (__val)->type = SWFDEC_AS_TYPE_BOOLEAN; \
  80 } G_STMT_END
  81
  82 #define SWFDEC_AS_VALUE_IS_NUMBER(val) ((val)->type == SWFDEC_AS_TYPE_NUMBER)
  83 #define SWFDEC_AS_VALUE_GET_NUMBER(val) ((val)->value.number)
  84 #define SWFDEC_AS_VALUE_SET_NUMBER(val,d) G_STMT_START { \
  85   SwfdecAsValue *__val = (val); \
  86   (__val)->value.number = (d); \
  87   (__val)->type = SWFDEC_AS_TYPE_NUMBER; \
  88 } G_STMT_END
  89
  90 #define SWFDEC_AS_VALUE_SET_INT(val,d) SWFDEC_AS_VALUE_SET_NUMBER(val,(int) (d))
  91
  92 #define SWFDEC_AS_VALUE_IS_STRING(val) ((val)->type == SWFDEC_AS_TYPE_STRING)
  93 #define SWFDEC_AS_VALUE_GET_STRING(val) ((val)->value.string)
  94 #define SWFDEC_AS_VALUE_SET_STRING(val,s) G_STMT_START { \
  95   SwfdecAsValue *__val = (val); \
  96   (__val)->value.string = s; \
  97   (__val)->type = SWFDEC_AS_TYPE_STRING; \
  98 } G_STMT_END
  99
 100 #define SWFDEC_AS_VALUE_IS_NULL(val) ((val)->type == SWFDEC_AS_TYPE_NULL)
 101 #define SWFDEC_AS_VALUE_SET_NULL(val) (val)->type = SWFDEC_AS_TYPE_NULL
 102
 103 #define SWFDEC_AS_VALUE_IS_OBJECT(val) ((val)->type == SWFDEC_AS_TYPE_OBJECT)
 104 #define SWFDEC_AS_VALUE_GET_OBJECT(val) ((val)->value.object)
 105 #define SWFDEC_AS_VALUE_SET_OBJECT(val,o) G_STMT_START { \
 106   SwfdecAsValue *__val = (val); \
 107   SwfdecAsObject *__o = (o); \
 108   g_assert (__o != NULL); \
 109   (__val)->type = SWFDEC_AS_TYPE_OBJECT; \
 110   (__val)->value.object = __o; \
 111 } G_STMT_END
 112
 113 /* value conversion functions */
 114 gboolean        swfdec_as_value_to_boolean      (SwfdecAsContext *      context,
 115                                                  const SwfdecAsValue *  value);
 116 int             swfdec_as_value_to_integer      (SwfdecAsContext *      context,
 117                                                  const SwfdecAsValue *  value);
 118 double          swfdec_as_value_to_number       (SwfdecAsContext *      context,
 119                                                  const SwfdecAsValue *  value);
 120 SwfdecAsObject *swfdec_as_value_to_object       (SwfdecAsContext *      context,
 121                                                  const SwfdecAsValue *  value);
 122 void            swfdec_as_value_to_primitive    (SwfdecAsValue *        value);
 123 const char *    swfdec_as_value_to_string       (SwfdecAsContext *      context,
 124                                                  const SwfdecAsValue *  value);
 125 char *          swfdec_as_value_to_debug        (const SwfdecAsValue *  value);
 126
 127 /* special conversion functions */
 128 const char *    swfdec_as_double_to_string      (SwfdecAsContext *      context,
 129                                                  double                 d);
 130 const char *    swfdec_as_str_concat            (SwfdecAsContext *      cx,
 131                                                  const char *           s1,
 132                                                  const char *           s2);
 133
 134
 135 G_END_DECLS
 136 #endif