使用Loader加载swf到当前域的问题

[rainysky252]

想加载资源到当前域，但是getDefinition时抛出变量未定义异常

	var loader:Loader = new Loader();
	loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onCompleteHandler, false, 0, true);
	var context:LoaderContext = new LoaderContext(false, ApplicationDomain.currentDomain, null);
	loader.load(new URLRequest(ResPath.res_host + "base/resource.swf"), context);

private function onCompleteHandler(event:Event):void
{
	var def:Object = ApplicationDomain.currentDomain.getDefinition(ResLib.UI_GAME_GUI_HERO_BAG);

	trace("load success");

}

没有成功加载到当前域吗，问题在哪里呢，如果使用

private function onCompleteHandler(event:Event):void
{
	var def:Object = LoaderInfo(event.currentTarget).applicationDomain.getDefinition(ResLib.UI_GAME_GUI_HERO_BAG);

	trace("load success");

}

可以成功获取定义

如何正确的加载资源到当前域呢，求大神解答，感激不尽。。。