[ActionScript 3.0] Singleton , 싱글톤 페턴
package { public class Singleton { private static var instance:Singleton; private static const checker:Object = {}; public function Singleton(initObj:Object) { if(initObj != checker) { throw new Error("Private constructor!"); } } public static function getInstance():Singleton { if(instance == null) { instance = new Singleton(checker); } return instance; } } }
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