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101 lines
4.0 KiB
C++
101 lines
4.0 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_USERTYPE_HPP
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#define SOL_USERTYPE_HPP
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#include "usertype_metatable.hpp"
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#include "stack.hpp"
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#include <memory>
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namespace sol {
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namespace usertype_detail {
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struct add_destructor_tag {};
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struct check_destructor_tag {};
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struct verified_tag {} const verified {};
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template <typename T>
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struct is_constructor : std::false_type {};
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template <typename... Args>
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struct is_constructor<constructors<Args...>> : std::true_type {};
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template <typename... Args>
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struct is_constructor<constructor_wrapper<Args...>> : std::true_type {};
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template <>
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struct is_constructor<no_construction> : std::true_type {};
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template <typename... Args>
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using has_constructor = meta::any<is_constructor<meta::unqualified_t<Args>>...>;
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template <typename T>
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struct is_destructor : std::false_type {};
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template <typename Fx>
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struct is_destructor<destructor_wrapper<Fx>> : std::true_type {};
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template <typename... Args>
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using has_destructor = meta::any<is_destructor<meta::unqualified_t<Args>>...>;
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} // usertype_detail
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template<typename T>
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class usertype {
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private:
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std::unique_ptr<usertype_detail::registrar> metatableregister;
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template<typename... Args>
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usertype(usertype_detail::verified_tag, Args&&... args) : metatableregister( std::make_unique<usertype_metatable<T, std::tuple<std::decay_t<Args>...>>>(std::make_tuple(std::forward<Args>(args)...)) ) {}
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template<typename... Args>
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usertype(usertype_detail::add_destructor_tag, Args&&... args) : usertype(usertype_detail::verified, std::forward<Args>(args)..., "__gc", default_destructor) {}
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template<typename... Args>
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usertype(usertype_detail::check_destructor_tag, Args&&... args) : usertype(meta::condition<meta::all<std::is_destructible<T>, meta::neg<usertype_detail::has_destructor<Args...>>>, usertype_detail::add_destructor_tag, usertype_detail::verified_tag>(), std::forward<Args>(args)...) {}
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public:
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template<typename... Args>
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usertype(Args&&... args) : usertype(meta::condition<meta::all<std::is_default_constructible<T>, meta::neg<usertype_detail::has_constructor<Args...>>>, decltype(default_constructor), usertype_detail::check_destructor_tag>(), std::forward<Args>(args)...) {}
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template<typename... Args, typename... CArgs>
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usertype(constructors<CArgs...> constructorlist, Args&&... args) : usertype(usertype_detail::check_destructor_tag(), std::forward<Args>(args)..., "new", constructorlist) {}
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template<typename... Args, typename... Fxs>
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usertype(constructor_wrapper<Fxs...> constructorlist, Args&&... args) : usertype(usertype_detail::check_destructor_tag(), std::forward<Args>(args)..., "new", constructorlist) {}
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int push(lua_State* L) {
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return metatableregister->push_um(L);
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}
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};
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namespace stack {
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template<typename T>
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struct pusher<usertype<T>> {
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static int push(lua_State* L, usertype<T>& user) {
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return user.push(L);
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}
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};
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} // stack
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} // sol
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#endif // SOL_USERTYPE_HPP
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