sol2/sol/raii.hpp
ThePhD 3b81a7c85f VC++ is a butt, but this Closes #91
It prepares for #97 as well, and blocks out #95 until I can be assed
Now, it's either performance or handling sol::property ...
2016-05-19 02:15:42 -04:00

103 lines
3.1 KiB
C++

// 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
// 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 SOL_RAII_HPP
#define SOL_RAII_HPP
#include <memory>
#include "traits.hpp"
namespace sol {
namespace detail {
struct default_construct {
template<typename T, typename... Args>
static void construct(T&& obj, Args&&... args) {
std::allocator<meta::unqualified_t<T>> alloc{};
alloc.construct(obj, std::forward<Args>(args)...);
}
template<typename T, typename... Args>
void operator()(T&& obj, Args&&... args) const {
construct(std::forward<T>(obj), std::forward<Args>(args)...);
}
};
struct default_destruct {
template<typename T>
static void destroy(T&& obj) {
std::allocator<meta::unqualified_t<T>> alloc{};
alloc.destroy(obj);
}
template<typename T>
void operator()(T&& obj) const {
destroy(std::forward<T>(obj));
}
};
} // detail
template <typename... Args>
struct constructor_list {};
template<typename... Args>
using constructors = constructor_list<Args...>;
const auto default_constructor = constructors<types<>>{};
struct no_construction {};
const auto no_constructor = no_construction{};
struct call_construction {};
const auto call_constructor = call_construction{};
template <typename... Functions>
struct constructor_wrapper {
std::tuple<Functions...> set;
template <typename... Args>
constructor_wrapper(Args&&... args) : set(std::forward<Args>(args)...) {}
};
template <typename... Functions>
constructor_wrapper<Functions...> initializers(Functions&&... functions) {
return constructor_wrapper<Functions...>(std::forward<Functions>(functions)...);
}
template <typename Function>
struct destructor_wrapper {
Function fx;
template <typename... Args>
destructor_wrapper(Args&&... args) : fx(std::forward<Args>(args)...) {}
};
template <>
struct destructor_wrapper<void> {};
const destructor_wrapper<void> default_destructor{};
template <typename Fx>
inline destructor_wrapper<Fx> destructor(Fx&& fx) {
return destructor_wrapper<Fx>(std::forward<Fx>(fx));
}
} // sol
#endif // SOL_RAII_HPP