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// sol2
// The MIT License (MIT)
// Copyright (c) 2013-2022 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_USERTYPE_HPP
#define SOL_USERTYPE_HPP
#include <sol/usertype_core.hpp>
#include <sol/usertype_container_launch.hpp>
#include <sol/usertype_storage.hpp>
#include <sol/usertype_proxy.hpp>
#include <sol/metatable.hpp>
namespace sol {
template <typename T, typename base_type>
class basic_usertype : private basic_metatable<base_type> {
private:
using base_t = basic_metatable<base_type>;
using table_base_t = basic_table<base_type>;
template <typename>
friend class basic_metatable;
template <bool, typename>
friend class basic_table_core;
template <std::size_t... I, typename... Args>
void tuple_set(std::index_sequence<I...>, std::tuple<Args...>&& args) {
(void)args;
(void)detail::swallow { 0, (this->set(std::get<I * 2>(std::move(args)), std::get<I * 2 + 1>(std::move(args))), 0)... };
}
template <typename R, typename... Args, typename Fx, typename Key, typename = std::invoke_result_t<Fx, Args...>>
void set_fx(types<R(Args...)>, Key&& key, Fx&& fx) {
set_resolved_function<R(Args...)>(std::forward<Key>(key), std::forward<Fx>(fx));
}
template <typename Fx, typename Key, meta::enable<meta::is_specialization_of<meta::unqualified_t<Fx>, overload_set>> = meta::enabler>
void set_fx(types<>, Key&& key, Fx&& fx) {
set(std::forward<Key>(key), std::forward<Fx>(fx));
}
template <typename Fx, typename Key, typename... Args,
meta::disable<meta::is_specialization_of<meta::unqualified_t<Fx>, overload_set>> = meta::enabler>
void set_fx(types<>, Key&& key, Fx&& fx, Args&&... args) {
set(std::forward<Key>(key), as_function_reference(std::forward<Fx>(fx), std::forward<Args>(args)...));
}
template <typename... Sig, typename... Args, typename Key>
void set_resolved_function(Key&& key, Args&&... args) {
set(std::forward<Key>(key), as_function_reference<function_sig<Sig...>>(std::forward<Args>(args)...));
}
public:
using base_t::base_t;
using base_t::get;
using base_t::lua_state;
using base_t::pop;
using base_t::push;
using base_t::traverse_get;
using base_t::traverse_set;
using base_t::unregister;
template <typename Key, typename Value>
basic_usertype& set(Key&& key, Value&& value) {
optional<u_detail::usertype_storage<T>&> maybe_uts = u_detail::maybe_get_usertype_storage<T>(this->lua_state());
if (maybe_uts) {
u_detail::usertype_storage<T>& uts = *maybe_uts;
uts.set(this->lua_state(), std::forward<Key>(key), std::forward<Value>(value));
}
else {
using ValueU = meta::unqualified_t<Value>;
// cannot get metatable: try regular table set?
if constexpr (detail::is_non_factory_constructor_v<ValueU> || detail::is_policy_v<ValueU>) {
// tag constructors so we don't get destroyed by lack of info
table_base_t::set(std::forward<Key>(key), detail::tagged<T, Value>(std::forward<Value>(value)));
}
else {
table_base_t::set(std::forward<Key>(key), std::forward<Value>(value));
}
}
return *this;
}
template <typename Sig, typename Key, typename... Args>
basic_usertype& set_function(Key&& key, Args&&... args) {
set_fx(types<Sig>(), std::forward<Key>(key), std::forward<Args>(args)...);
return *this;
}
template <typename Key, typename... Args>
basic_usertype& set_function(Key&& key, Args&&... args) {
set_fx(types<>(), std::forward<Key>(key), std::forward<Args>(args)...);
return *this;
}
template <typename Key>
usertype_proxy<basic_usertype&, std::decay_t<Key>> operator[](Key&& key) {
return usertype_proxy<basic_usertype&, std::decay_t<Key>>(*this, std::forward<Key>(key));
}
template <typename Key>
usertype_proxy<const basic_usertype&, std::decay_t<Key>> operator[](Key&& key) const {
return usertype_proxy<const basic_usertype&, std::decay_t<Key>>(*this, std::forward<Key>(key));
}
};
} // namespace sol
#endif // SOL_USERTYPE_HPP
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