Functor.hpp

// Copyright (C) 2017 Jérôme Leclercq
// This file is part of the "Nazara Engine - Core module"
// For conditions of distribution and use, see copyright notice in Config.hpp

#pragma once

#ifndef NAZARA_FUNCTOR_HPP
#define NAZARA_FUNCTOR_HPP

#include <Nazara/Core/Algorithm.hpp>

// Inspired from the of code of the SFML by Laurent Gomila

namespace Nz
{
    struct Functor
    {
        virtual ~Functor() {}

        virtual void Run() = 0;
    };

    template<typename F>
    struct FunctorWithoutArgs : Functor
    {
        FunctorWithoutArgs(F func);

        void Run() override;

        private:
            F m_func;
    };

    template<typename F, typename... Args>
    struct FunctorWithArgs : Functor
    {
        FunctorWithArgs(F func, Args&&... args);

        void Run() override;

        private:
            F m_func;
            std::tuple<Args...> m_args;
    };

    template<typename C>
    struct MemberWithoutArgs : Functor
    {
        MemberWithoutArgs(void (C::*func)(), C* object);

        void Run() override;

        private:
            void (C::*m_func)();
            C* m_object;
    };
}

#include <Nazara/Core/Functor.inl>

#endif // NAZARA_FUNCTOR_HPP