sol2/sol/proxy_base.hpp

// The MIT License (MIT) 

// Copyright (c) 2013-2016 Rapptz, ThePhD and contributors

// 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
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#ifndef SOL_PROXY_BASE_HPP
#define SOL_PROXY_BASE_HPP

#include "reference.hpp"
#include "tuple.hpp"
#include "stack.hpp"

namespace sol {
template <typename Super>
struct proxy_base {
    operator std::string() const {
        const Super& super = *static_cast<const Super*>(static_cast<const void*>(this));
        return super.template get<std::string>();
    }

    template<typename T, meta::EnableIf<meta::Not<meta::is_string_constructible<T>>, is_proxy_primitive<meta::Unqualified<T>>> = 0>
    operator T ( ) const {
        const Super& super = *static_cast<const Super*>(static_cast<const void*>(this));
        return super.template get<T>( );
    }

    template<typename T, meta::EnableIf<meta::Not<meta::is_string_constructible<T>>, meta::Not<is_proxy_primitive<meta::Unqualified<T>>>> = 0>
    operator T& ( ) const {
        const Super& super = *static_cast<const Super*>(static_cast<const void*>(this));
        return super.template get<T&>( );
    }
};
} // sol

#endif // SOL_PROXY_BASE_HPP