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116 lines
4.9 KiB
C++
116 lines
4.9 KiB
C++
// sol2
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// The MIT License (MIT)
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// Copyright (c) 2013-2021 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_TABLE_HPP
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#define SOL_TABLE_HPP
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#include <sol/table_core.hpp>
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#include <sol/lua_table.hpp>
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#include <sol/usertype.hpp>
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namespace sol {
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typedef table_core<false> table;
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template <bool is_global, typename base_type>
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template <typename Class, typename Key>
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usertype<Class> basic_table_core<is_global, base_type>::new_usertype(Key&& key) {
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constant_automagic_enrollments<> enrollments {};
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return this->new_usertype<Class>(std::forward<Key>(key), std::move(enrollments));
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}
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template <bool is_global, typename base_type>
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template <typename Class, typename Key, automagic_flags enrollment_flags>
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usertype<Class> basic_table_core<is_global, base_type>::new_usertype(Key&& key, constant_automagic_enrollments<enrollment_flags> enrollments) {
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int mt_index = u_detail::register_usertype<Class, enrollment_flags>(this->lua_state(), std::move(enrollments));
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usertype<Class> mt(this->lua_state(), -mt_index);
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lua_pop(this->lua_state(), 1);
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set(std::forward<Key>(key), mt);
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return mt;
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}
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template <bool is_global, typename base_type>
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template <typename Class, typename Key>
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usertype<Class> basic_table_core<is_global, base_type>::new_usertype(Key&& key, automagic_enrollments enrollments) {
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int mt_index = u_detail::register_usertype<Class, automagic_flags::all>(this->lua_state(), std::move(enrollments));
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usertype<Class> mt(this->lua_state(), -mt_index);
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lua_pop(this->lua_state(), 1);
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set(std::forward<Key>(key), mt);
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return mt;
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}
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template <bool is_global, typename base_type>
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template <typename Class, typename Key, typename Arg, typename... Args, typename>
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usertype<Class> basic_table_core<is_global, base_type>::new_usertype(Key&& key, Arg&& arg, Args&&... args) {
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constexpr automagic_flags enrollment_flags = meta::any_same_v<no_construction, meta::unqualified_t<Arg>, meta::unqualified_t<Args>...>
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? clear_flags(automagic_flags::all, automagic_flags::default_constructor)
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: automagic_flags::all;
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constant_automagic_enrollments<enrollment_flags> enrollments;
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enrollments.default_constructor = !detail::any_is_constructor_v<Arg, Args...>;
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enrollments.destructor = !detail::any_is_destructor_v<Arg, Args...>;
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usertype<Class> ut = this->new_usertype<Class>(std::forward<Key>(key), std::move(enrollments));
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static_assert(sizeof...(Args) % 2 == static_cast<std::size_t>(!detail::any_is_constructor_v<Arg>),
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"you must pass an even number of arguments to new_usertype after first passing a constructor");
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if constexpr (detail::any_is_constructor_v<Arg>) {
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ut.set(meta_function::construct, std::forward<Arg>(arg));
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ut.tuple_set(std::make_index_sequence<(sizeof...(Args)) / 2>(), std::forward_as_tuple(std::forward<Args>(args)...));
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}
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else {
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ut.tuple_set(std::make_index_sequence<(sizeof...(Args) + 1) / 2>(), std::forward_as_tuple(std::forward<Arg>(arg), std::forward<Args>(args)...));
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}
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return ut;
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}
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template <typename base_type>
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template <typename Key, typename Value>
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basic_metatable<base_type>& basic_metatable<base_type>::set(Key&& key, Value&& value) {
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this->push();
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lua_State* L = this->lua_state();
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int target = lua_gettop(L);
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optional<u_detail::usertype_storage_base&> maybe_uts = nullopt;
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maybe_uts = u_detail::maybe_get_usertype_storage_base(L, target);
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if (maybe_uts) {
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u_detail::usertype_storage_base& uts = *maybe_uts;
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uts.set(L, std::forward<Key>(key), std::forward<Value>(value));
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return *this;
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}
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else {
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base_t::set(std::forward<Key>(key), std::forward<Value>(value));
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}
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this->pop();
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return *this;
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}
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namespace stack {
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template <>
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struct unqualified_getter<metatable_key_t> {
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static metatable get(lua_State* L, int index = -1) {
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if (lua_getmetatable(L, index) == 0) {
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return metatable(L, ref_index(LUA_REFNIL));
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}
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return metatable(L, -1);
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}
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};
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} // namespace stack
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} // namespace sol
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#endif // SOL_TABLE_HPP
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