mirror of
https://github.com/ThePhD/sol2.git
synced 2024-03-22 13:10:44 +08:00
e69e7c79fa
added variadic_results, to return a variable number of arguments to Lua added variadic_results and as_results added improved function examples (for multiple results and split overloading out) added tests for variadics added tests for C++17 utilities added a forwarding header added a specific `unsafe_function` header added and improved documetation pages
108 lines
4.8 KiB
C++
108 lines
4.8 KiB
C++
// The MIT License (MIT)
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// Copyright (c) 2013-2017 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_OBJECT_HPP
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#define SOL_OBJECT_HPP
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#include "reference.hpp"
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#include "stack.hpp"
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#include "object_base.hpp"
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#include "userdata.hpp"
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#include "as_args.hpp"
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#include "variadic_args.hpp"
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#include "optional.hpp"
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namespace sol {
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template <typename R = reference, bool should_pop = !std::is_base_of<stack_reference, R>::value, typename T>
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R make_reference(lua_State* L, T&& value) {
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int backpedal = stack::push(L, std::forward<T>(value));
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R r = stack::get<R>(L, -backpedal);
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if (should_pop) {
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lua_pop(L, backpedal);
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}
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return r;
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}
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template <typename T, typename R = reference, bool should_pop = !std::is_base_of<stack_reference, R>::value, typename... Args>
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R make_reference(lua_State* L, Args&&... args) {
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int backpedal = stack::push<T>(L, std::forward<Args>(args)...);
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R r = stack::get<R>(L, -backpedal);
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if (should_pop) {
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lua_pop(L, backpedal);
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}
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return r;
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}
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template <typename base_type>
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class basic_object : public basic_object_base<base_type> {
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private:
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typedef basic_object_base<base_type> base_t;
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template <bool invert_and_pop = false>
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basic_object(std::integral_constant<bool, invert_and_pop>, lua_State* L, int index = -1) noexcept : base_t(L, index) {
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if (invert_and_pop) {
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lua_pop(L, -index);
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}
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}
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public:
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basic_object() noexcept = default;
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template <typename T, meta::enable<meta::neg<std::is_same<meta::unqualified_t<T>, basic_object>>, meta::neg<std::is_same<base_type, stack_reference>>, std::is_base_of<base_type, meta::unqualified_t<T>>> = meta::enabler>
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basic_object(T&& r) : base_t(std::forward<T>(r)) {}
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basic_object(lua_nil_t r) : base_t(r) {}
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basic_object(const basic_object&) = default;
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basic_object(basic_object&&) = default;
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basic_object(const stack_reference& r) noexcept : basic_object(r.lua_state(), r.stack_index()) {}
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basic_object(stack_reference&& r) noexcept : basic_object(r.lua_state(), r.stack_index()) {}
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template <typename Super>
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basic_object(const proxy_base<Super>& r) noexcept : basic_object(r.operator basic_object()) {}
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template <typename Super>
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basic_object(proxy_base<Super>&& r) noexcept : basic_object(r.operator basic_object()) {}
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basic_object(lua_State* L, int index = -1) noexcept : base_t(L, index) {}
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basic_object(lua_State* L, ref_index index) noexcept : base_t(L, index) {}
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template <typename T, typename... Args>
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basic_object(lua_State* L, in_place_type_t<T>, Args&&... args) noexcept : basic_object(std::integral_constant<bool, !std::is_base_of<stack_reference, base_t>::value>(), L, -stack::push<T>(L, std::forward<Args>(args)...)) {}
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template <typename T, typename... Args>
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basic_object(lua_State* L, in_place_t, T&& arg, Args&&... args) noexcept : basic_object(L, in_place_type<T>, std::forward<T>(arg), std::forward<Args>(args)...) {}
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basic_object& operator=(const basic_object&) = default;
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basic_object& operator=(basic_object&&) = default;
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basic_object& operator=(const base_type& b) { base_t::operator=(b); return *this; }
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basic_object& operator=(base_type&& b) { base_t::operator=(std::move(b)); return *this; }
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template <typename Super>
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basic_object& operator=(const proxy_base<Super>& r) { this->operator=(r.operator basic_object()); return *this; }
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template <typename Super>
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basic_object& operator=(proxy_base<Super>&& r) { this->operator=(r.operator basic_object()); return *this; }
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};
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template <typename T>
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object make_object(lua_State* L, T&& value) {
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return make_reference<object, true>(L, std::forward<T>(value));
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}
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template <typename T, typename... Args>
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object make_object(lua_State* L, Args&&... args) {
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return make_reference<T, object, true>(L, std::forward<Args>(args)...);
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}
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} // sol
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#endif // SOL_OBJECT_HPP
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