sol2/sol/stack_get_qualified.hpp

// sol2

// The MIT License (MIT)

// Copyright (c) 2013-2018 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
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

#ifndef SOL_STACK_QUALIFIED_GET_HPP
#define SOL_STACK_QUALIFIED_GET_HPP

#include "stack_get_unqualified.hpp"

namespace sol {
namespace stack {

#if 0 // need static reflection / DERIVED_CLASS macros...
	template <typename X>
	struct qualified_getter<X, std::enable_if_t<
		!std::is_reference<X>::value && is_unique_usertype<meta::unqualified_t<X>>::value
	>> {
		typedef typename unique_usertype_traits<meta::unqualified_t<X>>::type P;
		typedef typename unique_usertype_traits<meta::unqualified_t<X>>::actual_type Real;

		static Real& get(lua_State* L, int index, record& tracking) {
			tracking.use(1);
			void* memory = lua_touserdata(L, index);
			void* del = detail::align_usertype_unique_destructor(memory);
			memory = detail::align_usertype_unique<Real>(memory);
			Real* mem = static_cast<Real*>(memory);
			return *mem;
		}
	};
#endif // need static reflection

	template <typename T>
	struct qualified_getter<T, std::enable_if_t<
		!std::is_reference<T>::value 
		&& is_container<meta::unqualified_t<T>>::value 
		&& std::is_default_constructible<meta::unqualified_t<T>>::value
		&& !is_lua_primitive<T>::value 
		&& !is_transparent_argument<T>::value 
	>> {
		static T get(lua_State* L, int index, record& tracking) {
			if (type_of(L, index) == type::userdata) {
				return stack_detail::unchecked_unqualified_get<T>(L, index, tracking);
			}
			else {
				return stack_detail::unchecked_unqualified_get<sol::nested<T>>(L, index, tracking);
			}
		}
	};
}
} // namespace sol::stack

#endif // SOL_STACK_QUALIFIED_GET_HPP