Subj : problem on setter of object;'s property
To   : netscape.public.mozilla.jseng
From : "lyg" <liyg@tech.coretek.com.cn>
Date : Tue Feb 10 2004 04:21 pm

when i set the value property of a option object , why the GetOptionProperty
function is not called ?

what is wrong ? Thanks!

/*declare option object's property GETTER*/
static JSBool GetOptionProperty (JSContext *cx, JSObject *obj, jsval id,
jsval *vp);

static JSClass OptionClass = {
          "Option",0,
           JS_PropertyStub,JS_PropertyStub, JS_PropertyStub,
JS_PropertyStub,JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub,
JS_FinalizeStub,JSCLASS_NO_OPTIONAL_MEMBERS
};

enum  OPTION_PROP_ID {

  OPTION_VALUE = 0,
  OPTION_TEXT,
};

static JSPropertySpec OptionProperties[] =
{
   {"value",        OPTION_VALUE,
JSPROP_ENUMERATE|JSPROP_READONLY, GetOptionProperty},
   {"text",             OPTION_TEXT,
JSPROP_ENUMERATE|JSPROP_READONLY, GetOptionProperty},
   {0}
};

static JSBool
Option(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
  if (0 < argc && 5 > argc)
  {
    char *temp;
    temp = JS_GetStringBytes( JSVAL_TO_STRING(argv[0]) );

    JS_SetProperty(cx, obj, "text",  &argv[0]);
    if (argc > 1)
      JS_SetProperty(cx, obj, "value", &argv[1]);

    return JS_TRUE;
  }
  else return JS_FALSE;
}

JSObject *
js_InitOptionClass(JSContext *cx, JSObject *obj)
{
    JSObject *proto;

    proto = JS_InitClass(cx, obj, NULL, &OptionClass, Option, 4,
            NULL, NULL, OptionProperties, NULL);
    if (!proto)
       return NULL;
    OBJ_SET_SLOT(cx, proto, JSSLOT_PRIVATE, JSVAL_FALSE);
    return proto;
}

static JSBool GetOptionProperty (JSContext *cx, JSObject *obj, jsval id,
jsval *vp)
{
  int i = 9;
  return JS_TRUE;
}

.