创建对象的弱引用

Is it possible in Actionscript 3 to create a weak reference to an object, so that it can be garbage collected.

在Actionscript 3中是否可以创建对对象的弱引用,以便可以对其进行垃圾回收。

I'm creating some classes to make debugging easier, so I don't want the objects to hang around in memory if they are only referenced here (and of course I don't want to fill the code with callbacks to remove the objects)

我正在创建一些类来使调试更容易,所以我不希望对象在内存中挂起,如果它们只在这里引用(当然我不想用回调填充代码来删除对象)

2 个解决方案

#1

Grant Skinner has written an excellent series of articles on resource management in ActionScript 3, and in the third part of that series he introduces the WeakReference and the WeakProxyReference helper classes that can be used for this.

Grant Skinner在ActionScript 3中撰写了一系列关于资源管理的优秀文章,在该系列的第三部分中,他介绍了可用于此的WeakReference和WeakProxyReference助手类。

#2

Right now I've made a simple class to take advantage of the Dictionary weakKeys parameter:

现在我已经创建了一个简单的类来利用Dictionary weakKeys参数:

public class WeakReference
{
    private var dic

    public function WeakReference(object)
    {
        this.dic = new Dictionary(true)
        this.dic[object] = true
    }

    public function get Value()
    {
        for (var object in this.dic)
        {
            return object
        }
        return null
    }
}