enum_maker.hpp

// Copyright (c) 2003 Daniel Wallin and Arvid Norberg

// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:

// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
// ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
// TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
// PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
// SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
// ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
// OR OTHER DEALINGS IN THE SOFTWARE.


#ifndef LUABIND_ENUM_MAKER_HPP_INCLUDED
#define LUABIND_ENUM_MAKER_HPP_INCLUDED

#include <vector>
#include <string>

#include <luabind/config.hpp>
#include <luabind/detail/class_rep.hpp>

namespace luabind
{
    struct value;

    struct value_vector : public std::vector<value>
    {
        // a bug in intel's compiler forces us to declare these constructors explicitly.
        value_vector();
        virtual ~value_vector();
        value_vector(const value_vector& v);
        value_vector& operator,(const value& rhs);
    };

    struct value
    {
    friend class std::vector<value>;
        template<class T>
        value(const char* name, T v)
            : name_(name)
            , val_(v)
        {}

        const char* name_;
        int val_;

        value_vector operator,(const value& rhs) const
        {
            value_vector v;

            v.push_back(*this);
            v.push_back(rhs);

            return v;
        }

    private: 

        value() {}
    };

    inline value_vector::value_vector()
        : std::vector<value>()
    {
    }

    inline value_vector::~value_vector() {}

    inline value_vector::value_vector(const value_vector& rhs)
        : std::vector<value>(rhs)
    {
    }

    inline value_vector& value_vector::operator,(const value& rhs)
    {
        push_back(rhs);
        return *this;
    }

    namespace detail
    {
        template<class From>
        struct enum_maker
        {
            explicit enum_maker(From& from): from_(from) {}

            From& operator[](const value& val)
            {
                from_.add_static_constant(val.name_, val.val_);
                return from_;
            }
            
            From& operator[](const value_vector& values)
            {
                for (value_vector::const_iterator i = values.begin(); i != values.end(); ++i)
                {
                    from_.add_static_constant(i->name_, i->val_);
                }

                return from_;
            }

            From& from_;

        private:
            void operator=(enum_maker const&); // C4512, assignment operator could not be generated
            template<class T> void operator,(T const&) const;
        };
    }
}

#endif // LUABIND_ENUM_MAKER_HPP_INCLUDED