swfdec/swfdec_as_frame_internal.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_FRAME_INTERNAL_H_
  21 #define _SWFDEC_AS_FRAME_INTERNAL_H_
  22
  23 #include <swfdec/swfdec_as_types.h>
  24 #include <swfdec/swfdec_script_internal.h>
  25
  26 G_BEGIN_DECLS
  27
  28 typedef void (* SwfdecAsFrameBlockFunc) (SwfdecAsContext *cx, SwfdecAsFrame *frame, gpointer data);
  29
  30 struct _SwfdecAsFrame {
  31   SwfdecAsFrame *       next;           /* next frame (FIXME: keep a list in the context instead?) */
  32   SwfdecAsFunction *    function;       /* function we're executing or NULL if toplevel */
  33   SwfdecAsObject *      thisp;          /* this object in current frame or NULL if none */
  34   SwfdecAsObject *      super;          /* super object in current frame or NULL if none */
  35   gboolean              construct;      /* TRUE if this is the constructor for thisp */
  36   SwfdecAsValue *       return_value;   /* pointer to where to store the return value */
  37   guint                 argc;           /* number of arguments */
  38   const SwfdecAsValue * argv;           /* arguments or %NULL if taken from stack */
  39   /* script execution */
  40   SwfdecScript *        script;         /* script being executed */
  41   GSList *              scope_chain;    /* the scope chain (with objects etc) */
  42   const guint8 *        block_start;    /* start of current block */
  43   const guint8 *        block_end;      /* end of current block */
  44   GArray *              blocks;         /* blocks we have entered (like With) */
  45   SwfdecAsObject *      target;         /* target to use as last object in scope chain or for SetVariable */
  46   SwfdecAsObject *      original_target;/* original target (used when resetting target) */
  47   SwfdecAsObject *      activation;     /* activation object or NULL if the frame takes no local variables */
  48   SwfdecAsValue *       registers;      /* the registers */
  49   guint                 n_registers;    /* number of allocated registers */
  50   SwfdecConstantPool *  constant_pool;  /* constant pool currently in use */
  51   SwfdecAsValue *       stack_begin;    /* beginning of stack */
  52   const guint8 *        pc;             /* program counter on stack */
  53   /* native function */
  54 };
  55
  56 void            swfdec_as_frame_init            (SwfdecAsFrame *        frame,
  57                                                  SwfdecAsContext *      context,
  58                                                  SwfdecScript *         script);
  59 void            swfdec_as_frame_init_native     (SwfdecAsFrame *        frame,
  60                                                  SwfdecAsContext *      context);
  61 void            swfdec_as_frame_return          (SwfdecAsFrame *        frame,
  62                                                  SwfdecAsValue *        return_value);
  63
  64 void            swfdec_as_frame_set_this        (SwfdecAsFrame *        frame,
  65                                                  SwfdecAsObject *       thisp);
  66 void            swfdec_as_frame_preload         (SwfdecAsFrame *        frame);
  67
  68 #define swfdec_as_frame_get_variable(frame, variable, value) \
  69   swfdec_as_frame_get_variable_and_flags (frame, variable, value, NULL, NULL)
  70 SwfdecAsObject *swfdec_as_frame_get_variable_and_flags
  71                                                 (SwfdecAsFrame *        frame,
  72                                                  const char *           variable,
  73                                                  SwfdecAsValue *        value,
  74                                                  guint *                flags,
  75                                                  SwfdecAsObject **      pobject);
  76 #define swfdec_as_frame_set_variable(frame, variable, value, overwrite, local) \
  77   swfdec_as_frame_set_variable_and_flags (frame, variable, value, 0, overwrite, local)
  78 void            swfdec_as_frame_set_variable_and_flags
  79                                                 (SwfdecAsFrame *        frame,
  80                                                  const char *           variable,
  81                                                  const SwfdecAsValue *  value,
  82                                                  guint                  default_flags,
  83                                                  gboolean               overwrite,
  84                                                  gboolean               local);
  85 SwfdecAsDeleteReturn
  86                 swfdec_as_frame_delete_variable (SwfdecAsFrame *        frame,
  87                                                  const char *           variable);
  88
  89 void            swfdec_as_frame_set_target      (SwfdecAsFrame *        frame,
  90                                                  SwfdecAsObject *       target);
  91 void            swfdec_as_frame_push_block      (SwfdecAsFrame *        frame,
  92                                                  const guint8 *         start,
  93                                                  const guint8 *         end,
  94                                                  SwfdecAsFrameBlockFunc func,
  95                                                  gpointer               data);
  96 void            swfdec_as_frame_pop_block       (SwfdecAsFrame *        frame,
  97                                                  SwfdecAsContext *      context);
  98 void            swfdec_as_frame_handle_exception(SwfdecAsFrame *        frame);
  99
 100
 101 G_END_DECLS
 102 #endif