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102 lines
3.1 KiB
C++
102 lines
3.1 KiB
C++
// The MIT License (MIT)
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// Copyright (c) 2013-2016 Rapptz, ThePhD and contributors
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// Permission is hereby granted, free of charge, to any person obtaining a copy of
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// this software and associated documentation files (the "Software"), to deal in
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// the Software without restriction, including without limitation the rights to
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// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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// the Software, and to permit persons to whom the Software is furnished to do so,
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// subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#ifndef SOL_RAII_HPP
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#define SOL_RAII_HPP
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#include <memory>
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#include "traits.hpp"
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namespace sol {
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namespace detail {
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struct default_construct {
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template<typename T, typename... Args>
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static void construct(T&& obj, Args&&... args) {
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std::allocator<meta::unqualified_t<T>> alloc{};
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alloc.construct(obj, std::forward<Args>(args)...);
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}
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template<typename T, typename... Args>
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void operator()(T&& obj, Args&&... args) const {
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construct(std::forward<T>(obj), std::forward<Args>(args)...);
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}
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};
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struct default_destruct {
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template<typename T>
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static void destroy(T&& obj) {
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std::allocator<meta::unqualified_t<T>> alloc{};
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alloc.destroy(obj);
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}
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template<typename T>
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void operator()(T&& obj) const {
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destroy(std::forward<T>(obj));
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}
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};
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} // detail
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template <typename... Args>
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struct constructor_list {};
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template<typename... Args>
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using constructors = constructor_list<Args...>;
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const auto default_constructor = constructors<types<>>{};
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struct no_construction {};
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const auto no_constructor = no_construction{};
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struct call_construction {};
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const auto call_constructor = call_construction{};
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template <typename... Functions>
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struct constructor_wrapper {
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std::tuple<Functions...> set;
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template <typename... Args>
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constructor_wrapper(Args&&... args) : set(std::forward<Args>(args)...) {}
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};
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template <typename... Functions>
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inline auto initializers(Functions&&... functions) {
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return constructor_wrapper<std::decay_t<Functions>...>(std::forward<Functions>(functions)...);
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}
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template <typename Function>
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struct destructor_wrapper {
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Function fx;
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destructor_wrapper(Function f) : fx(std::move(f)) {}
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};
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template <>
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struct destructor_wrapper<void> {};
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const destructor_wrapper<void> default_destructor{};
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template <typename Fx>
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inline auto destructor(Fx&& fx) {
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return destructor_wrapper<std::decay_t<Fx>>(std::forward<Fx>(fx));
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}
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} // sol
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#endif // SOL_RAII_HPP
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