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diff --git a/3rdparty/sol2/sol/protected_function.hpp b/3rdparty/sol2/sol/protected_function.hpp
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-// The MIT License (MIT)
-
-// Copyright (c) 2013-2016 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_PROTECTED_FUNCTION_HPP
-#define SOL_PROTECTED_FUNCTION_HPP
-
-#include "reference.hpp"
-#include "stack.hpp"
-#include "protected_function_result.hpp"
-#include <cstdint>
-#include <algorithm>
-
-namespace sol {
- namespace detail {
- inline reference& handler_storage() {
- static sol::reference h;
- return h;
- }
-
- struct handler {
- const reference& target;
- int stackindex;
- handler(const reference& target) : target(target), stackindex(0) {
- if (target.valid()) {
- stackindex = lua_gettop(target.lua_state()) + 1;
- target.push();
- }
- }
- bool valid() const { return stackindex != 0; }
- ~handler() {
- if (valid()) {
- lua_remove(target.lua_state(), stackindex);
- }
- }
- };
- }
-
- template <typename base_t>
- class basic_protected_function : public base_t {
- public:
- static reference& get_default_handler() {
- return detail::handler_storage();
- }
-
- static void set_default_handler(const reference& ref) {
- detail::handler_storage() = ref;
- }
-
- static void set_default_handler(reference&& ref) {
- detail::handler_storage() = std::move(ref);
- }
-
- private:
- call_status luacall(std::ptrdiff_t argcount, std::ptrdiff_t resultcount, detail::handler& h) const {
- return static_cast<call_status>(lua_pcallk(base_t::lua_state(), static_cast<int>(argcount), static_cast<int>(resultcount), h.stackindex, 0, nullptr));
- }
-
- template<std::size_t... I, typename... Ret>
- auto invoke(types<Ret...>, std::index_sequence<I...>, std::ptrdiff_t n, detail::handler& h) const {
- luacall(n, sizeof...(Ret), h);
- return stack::pop<std::tuple<Ret...>>(base_t::lua_state());
- }
-
- template<std::size_t I, typename Ret>
- Ret invoke(types<Ret>, std::index_sequence<I>, std::ptrdiff_t n, detail::handler& h) const {
- luacall(n, 1, h);
- return stack::pop<Ret>(base_t::lua_state());
- }
-
- template <std::size_t I>
- void invoke(types<void>, std::index_sequence<I>, std::ptrdiff_t n, detail::handler& h) const {
- luacall(n, 0, h);
- }
-
- protected_function_result invoke(types<>, std::index_sequence<>, std::ptrdiff_t n, detail::handler& h) const {
- int stacksize = lua_gettop(base_t::lua_state());
- int poststacksize = stacksize;
- int firstreturn = 1;
- int returncount = 0;
- call_status code = call_status::ok;
-#ifndef SOL_NO_EXCEPTIONS
- auto onexcept = [&](const char* error) {
- h.stackindex = 0;
- if (h.target.valid()) {
- h.target.push();
- stack::push(base_t::lua_state(), error);
- lua_call(base_t::lua_state(), 1, 1);
- }
- else {
- stack::push(base_t::lua_state(), error);
- }
- };
- try {
-#endif // No Exceptions
- firstreturn = (std::max)(1, static_cast<int>(stacksize - n - static_cast<int>(h.valid())));
- code = luacall(n, LUA_MULTRET, h);
- poststacksize = lua_gettop(base_t::lua_state()) - static_cast<int>(h.valid());
- returncount = poststacksize - (firstreturn - 1);
-#ifndef SOL_NO_EXCEPTIONS
- }
- // Handle C++ errors thrown from C++ functions bound inside of lua
- catch (const char* error) {
- onexcept(error);
- firstreturn = lua_gettop(base_t::lua_state());
- return protected_function_result(base_t::lua_state(), firstreturn, 0, 1, call_status::runtime);
- }
- catch (const std::exception& error) {
- onexcept(error.what());
- firstreturn = lua_gettop(base_t::lua_state());
- return protected_function_result(base_t::lua_state(), firstreturn, 0, 1, call_status::runtime);
- }
- catch (...) {
- onexcept("caught (...) unknown error during protected_function call");
- firstreturn = lua_gettop(base_t::lua_state());
- return protected_function_result(base_t::lua_state(), firstreturn, 0, 1, call_status::runtime);
- }
-#endif // No Exceptions
- return protected_function_result(base_t::lua_state(), firstreturn, returncount, returncount, code);
- }
-
- public:
- reference error_handler;
-
- basic_protected_function() = default;
- template <typename T, meta::enable<meta::neg<std::is_same<meta::unqualified_t<T>, basic_protected_function>>, meta::neg<std::is_same<base_t, stack_reference>>, std::is_base_of<base_t, meta::unqualified_t<T>>> = meta::enabler>
- basic_protected_function(T&& r) noexcept : base_t(std::forward<T>(r)) {
-#ifdef SOL_CHECK_ARGUMENTS
- if (!is_function<meta::unqualified_t<T>>::value) {
- auto pp = stack::push_pop(*this);
- stack::check<basic_protected_function>(base_t::lua_state(), -1, type_panic);
- }
-#endif // Safety
- }
- basic_protected_function(const basic_protected_function&) = default;
- basic_protected_function& operator=(const basic_protected_function&) = default;
- basic_protected_function(basic_protected_function&&) = default;
- basic_protected_function& operator=(basic_protected_function&&) = default;
- basic_protected_function(const basic_function<base_t>& b, reference eh = get_default_handler()) : base_t(b), error_handler(std::move(eh)) {}
- basic_protected_function(basic_function<base_t>&& b, reference eh = get_default_handler()) : base_t(std::move(b)), error_handler(std::move(eh)) {}
- basic_protected_function(const stack_reference& r, reference eh = get_default_handler()) : basic_protected_function(r.lua_state(), r.stack_index(), std::move(eh)) {}
- basic_protected_function(stack_reference&& r, reference eh = get_default_handler()) : basic_protected_function(r.lua_state(), r.stack_index(), std::move(eh)) {}
- template <typename Super>
- basic_protected_function(proxy_base<Super>&& p, reference eh = get_default_handler()) : basic_protected_function(p.operator basic_function<base_t>(), std::move(eh)) {}
- template <typename Super>
- basic_protected_function(const proxy_base<Super>& p, reference eh = get_default_handler()) : basic_protected_function(static_cast<basic_function<base_t>>(p), std::move(eh)) {}
- template <typename T, meta::enable<meta::neg<std::is_integral<meta::unqualified_t<T>>>, meta::neg<std::is_same<T, ref_index>>> = meta::enabler>
- basic_protected_function(lua_State* L, T&& r, reference eh) : basic_protected_function(L, sol::ref_index(r.registry_index()), std::move(eh)) {}
- basic_protected_function(lua_State* L, int index = -1, reference eh = get_default_handler()) : base_t(L, index), error_handler(std::move(eh)) {
-#ifdef SOL_CHECK_ARGUMENTS
- stack::check<basic_protected_function>(L, index, type_panic);
-#endif // Safety
- }
- basic_protected_function(lua_State* L, ref_index index, reference eh = get_default_handler()) : base_t(L, index), error_handler(std::move(eh)) {
-#ifdef SOL_CHECK_ARGUMENTS
- auto pp = stack::push_pop(*this);
- stack::check<basic_protected_function>(L, -1, type_panic);
-#endif // Safety
- }
-
- template<typename... Args>
- protected_function_result operator()(Args&&... args) const {
- return call<>(std::forward<Args>(args)...);
- }
-
- template<typename... Ret, typename... Args>
- decltype(auto) operator()(types<Ret...>, Args&&... args) const {
- return call<Ret...>(std::forward<Args>(args)...);
- }
-
- template<typename... Ret, typename... Args>
- decltype(auto) call(Args&&... args) const {
- detail::handler h(error_handler);
- base_t::push();
- int pushcount = stack::multi_push_reference(base_t::lua_state(), std::forward<Args>(args)...);
- return invoke(types<Ret...>(), std::make_index_sequence<sizeof...(Ret)>(), pushcount, h);
- }
- };
-} // sol
-
-#endif // SOL_FUNCTION_HPP