/** * Copyright (c) 2006-2011 LOVE Development Team * * This software is provided 'as-is', without any express or implied * warranty. In no event will the authors be held liable for any damages * arising from the use of this software. * * Permission is granted to anyone to use this software for any purpose, * including commercial applications, and to alter it and redistribute it * freely, subject to the following restrictions: * * 1. The origin of this software must not be misrepresented; you must not * claim that you wrote the original software. If you use this software * in a product, an acknowledgment in the product documentation would be * appreciated but is not required. * 2. Altered source versions must be plainly marked as such, and must not be * misrepresented as being the original software. * 3. This notice may not be removed or altered from any source distribution. **/ #ifndef LOVE_OBJECT_H #define LOVE_OBJECT_H namespace love { /** * Superclass for all object that should be able to cross the Lua/C border * (this pertains to most objects). * * This class is an alternative to using smart pointers; it contains retain/release * methods, and will delete itself with the reference count hits zero. The wrapper * code assumes that all userdata inherits from this class. **/ class Object { private: // The reference count. int count; public: /** * Constructor. Sets reference count to one. **/ Object(); /** * Destructor. **/ virtual ~Object() = 0; /** * Gets the reference count of this Object. * @returns The reference count. **/ int getReferenceCount() const; /** * Retains the Object, i.e. increases the * reference count by one. **/ void retain(); /** * Releases one reference to the Object, i.e. decrements the * reference count by one, and potentially deletes the Object * if there are no more references. **/ void release(); }; // Object } // love #endif // LOVE_OBJECT_H