/* * Copyright (c) 2008, 2009, 2010, 2011 * Jonathan Schleifer <js@webkeks.org> * * All rights reserved. * * This file is part of ObjFW. It may be distributed under the terms of the * Q Public License 1.0, which can be found in the file LICENSE.QPL included in * the packaging of this file. * * Alternatively, it may be distributed under the terms of the GNU General * Public License, either version 2 or 3, which can be found in the file * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this * file. */ #import "OFObject.h" #import "OFSerialization.h" #import "OFJSONEncoding.h" /** * \brief A class for representing null values in collections. */ @interface OFNull: OFObject <OFCopying, OFSerialization, OFJSON> /** * \brief Returns an OFNull singleton. * * \return An OFNull singleton */ + null; @end