Ray Greenwell
dbf20bdc28
git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@5725 542714f4-19e9-0310-aa3c-eee0fc999fb1
37 lines
710 B
ActionScript
37 lines
710 B
ActionScript
//
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// $Id$
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package com.threerings.util {
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import flash.utils.Dictionary;
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/**
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* A weak reference. At some point in the future the referent might not be available
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* anymore.
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*/
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public class WeakReference
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{
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/**
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* No, you cannot store undefined here.
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*/
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public function WeakReference (referant :Object)
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{
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_ref[referant] = true;
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}
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/**
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* Return the referant, or undefined if it's been collected.
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*/
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public function get () :*
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{
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for (var k :* in _ref) {
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return k;
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}
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return undefined;
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}
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/** The only way to have a weak reference in actionscript. */
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protected var _ref :Dictionary = new Dictionary(true);
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}
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}
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