Forget what I said, I just need to change git attributes to mark for vendor

1 files changed, 0 insertions, 906 deletions

diff --git a/deps/sol2/include/sol/call.hpp b/deps/sol2/include/sol/call.hpp
deleted file mode 100644
index 811ce57..0000000
--- a/deps/sol2/include/sol/call.hpp
+++ /dev/null
@@ -1,906 +0,0 @@
-// sol3
-
-// The MIT License (MIT)
-
-// Copyright (c) 2013-2019 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_CALL_HPP
-#define SOL_CALL_HPP
-
-#include "property.hpp"
-#include "protect.hpp"
-#include "wrapper.hpp"
-#include "trampoline.hpp"
-#include "policies.hpp"
-#include "stack.hpp"
-#include "unique_usertype_traits.hpp"
-
-namespace sol {
-	namespace u_detail {
-
-	} // namespace u_detail
-
-	namespace policy_detail {
-		template <int I, int... In>
-		inline void handle_policy(static_stack_dependencies<I, In...>, lua_State* L, int&) {
-			if constexpr (sizeof...(In) == 0) {
-				(void)L;
-				return;
-			}
-			else {
-				absolute_index ai(L, I);
-				if (type_of(L, ai) != type::userdata) {
-					return;
-				}
-				lua_createtable(L, static_cast<int>(sizeof...(In)), 0);
-				stack_reference deps(L, -1);
-				auto per_dep = [&L, &deps](int i) {
-#if defined(SOL_SAFE_STACK_CHECK) && SOL_SAFE_STACK_CHECK
-					luaL_checkstack(L, 1, detail::not_enough_stack_space_generic);
-#endif // make sure stack doesn't overflow
-					lua_pushvalue(L, i);
-					luaL_ref(L, deps.stack_index());
-				};
-				(void)per_dep;
-				(void)detail::swallow{ int(), (per_dep(In), int())... };
-				lua_setuservalue(L, ai);
-			}
-		}
-
-		template <int... In>
-		inline void handle_policy(returns_self_with<In...>, lua_State* L, int& pushed) {
-			pushed = stack::push(L, raw_index(1));
-			handle_policy(static_stack_dependencies<-1, In...>(), L, pushed);
-		}
-
-		inline void handle_policy(const stack_dependencies& sdeps, lua_State* L, int&) {
-			absolute_index ai(L, sdeps.target);
-			if (type_of(L, ai) != type::userdata) {
-				return;
-			}
-			lua_createtable(L, static_cast<int>(sdeps.size()), 0);
-			stack_reference deps(L, -1);
-#if defined(SOL_SAFE_STACK_CHECK) && SOL_SAFE_STACK_CHECK
-			luaL_checkstack(L, static_cast<int>(sdeps.size()), detail::not_enough_stack_space_generic);
-#endif // make sure stack doesn't overflow
-			for (std::size_t i = 0; i < sdeps.size(); ++i) {
-				lua_pushvalue(L, sdeps.stack_indices[i]);
-				luaL_ref(L, deps.stack_index());
-			}
-			lua_setuservalue(L, ai);
-		}
-
-		template <typename P, meta::disable<std::is_base_of<detail::policy_base_tag, meta::unqualified_t<P>>> = meta::enabler>
-		inline void handle_policy(P&& p, lua_State* L, int& pushed) {
-			pushed = std::forward<P>(p)(L, pushed);
-		}
-	} // namespace policy_detail
-
-	namespace function_detail {
-		inline int no_construction_error(lua_State* L) {
-			return luaL_error(L, "sol: cannot call this constructor (tagged as non-constructible)");
-		}
-	} // namespace function_detail
-
-	namespace call_detail {
-
-		template <typename R, typename W>
-		inline auto& pick(std::true_type, property_wrapper<R, W>& f) {
-			return f.read();
-		}
-
-		template <typename R, typename W>
-		inline auto& pick(std::false_type, property_wrapper<R, W>& f) {
-			return f.write();
-		}
-
-		template <typename T, typename List>
-		struct void_call : void_call<T, meta::function_args_t<List>> {};
-
-		template <typename T, typename... Args>
-		struct void_call<T, types<Args...>> {
-			static void call(Args...) {
-			}
-		};
-
-		template <typename T, bool checked, bool clean_stack>
-		struct constructor_match {
-			T* obj_;
-
-			constructor_match(T* o) : obj_(o) {
-			}
-
-			template <typename Fx, std::size_t I, typename... R, typename... Args>
-			int operator()(types<Fx>, meta::index_value<I>, types<R...> r, types<Args...> a, lua_State* L, int, int start) const {
-				detail::default_construct func{};
-				return stack::call_into_lua<checked, clean_stack>(r, a, L, start, func, obj_);
-			}
-		};
-
-		namespace overload_detail {
-			template <std::size_t... M, typename Match, typename... Args>
-			inline int overload_match_arity(types<>, std::index_sequence<>, std::index_sequence<M...>, Match&&, lua_State* L, int, int, Args&&...) {
-				return luaL_error(L, "sol: no matching function call takes this number of arguments and the specified types");
-			}
-
-			template <typename Fx, typename... Fxs, std::size_t I, std::size_t... In, std::size_t... M, typename Match, typename... Args>
-			inline int overload_match_arity(types<Fx, Fxs...>, std::index_sequence<I, In...>, std::index_sequence<M...>, Match&& matchfx, lua_State* L,
-			     int fxarity, int start, Args&&... args) {
-				typedef lua_bind_traits<meta::unwrap_unqualified_t<Fx>> traits;
-				typedef meta::tuple_types<typename traits::return_type> return_types;
-				typedef typename traits::free_args_list args_list;
-				// compile-time eliminate any functions that we know ahead of time are of improper arity
-				if constexpr (!traits::runtime_variadics_t::value && meta::find_in_pack_v<meta::index_value<traits::free_arity>, meta::index_value<M>...>::value) {
-					return overload_match_arity(types<Fxs...>(),
-					     std::index_sequence<In...>(),
-					     std::index_sequence<M...>(),
-					     std::forward<Match>(matchfx),
-					     L,
-					     fxarity,
-					     start,
-					     std::forward<Args>(args)...);
-				}
-				else {
-					if constexpr (!traits::runtime_variadics_t::value) {
-						if (traits::free_arity != fxarity) {
-							return overload_match_arity(types<Fxs...>(),
-								std::index_sequence<In...>(),
-								std::index_sequence<traits::free_arity, M...>(),
-								std::forward<Match>(matchfx),
-								L,
-								fxarity,
-								start,
-								std::forward<Args>(args)...);
-						}
-					}
-					stack::record tracking{};
-					if (!stack::stack_detail::check_types(args_list(), L, start, no_panic, tracking)) {
-						return overload_match_arity(types<Fxs...>(),
-							std::index_sequence<In...>(),
-							std::index_sequence<M...>(),
-							std::forward<Match>(matchfx),
-							L,
-							fxarity,
-							start,
-							std::forward<Args>(args)...);
-					}
-					return matchfx(types<Fx>(), meta::index_value<I>(), return_types(), args_list(), L, fxarity, start, std::forward<Args>(args)...);
-				}
-			}
-
-			template <std::size_t... M, typename Match, typename... Args>
-			inline int overload_match_arity_single(
-			     types<>, std::index_sequence<>, std::index_sequence<M...>, Match&& matchfx, lua_State* L, int fxarity, int start, Args&&... args) {
-				return overload_match_arity(types<>(),
-				     std::index_sequence<>(),
-				     std::index_sequence<M...>(),
-				     std::forward<Match>(matchfx),
-				     L,
-				     fxarity,
-				     start,
-				     std::forward<Args>(args)...);
-			}
-
-			template <typename Fx, std::size_t I, std::size_t... M, typename Match, typename... Args>
-			inline int overload_match_arity_single(
-			     types<Fx>, std::index_sequence<I>, std::index_sequence<M...>, Match&& matchfx, lua_State* L, int fxarity, int start, Args&&... args) {
-				typedef lua_bind_traits<meta::unwrap_unqualified_t<Fx>> traits;
-				typedef meta::tuple_types<typename traits::return_type> return_types;
-				typedef typename traits::free_args_list args_list;
-				// compile-time eliminate any functions that we know ahead of time are of improper arity
-				if constexpr (!traits::runtime_variadics_t::value
-				     && meta::find_in_pack_v<meta::index_value<traits::free_arity>, meta::index_value<M>...>::value) {
-					return overload_match_arity(types<>(),
-					     std::index_sequence<>(),
-					     std::index_sequence<M...>(),
-					     std::forward<Match>(matchfx),
-					     L,
-					     fxarity,
-					     start,
-					     std::forward<Args>(args)...);
-				}
-				if (!traits::runtime_variadics_t::value && traits::free_arity != fxarity) {
-					return overload_match_arity(types<>(),
-					     std::index_sequence<>(),
-					     std::index_sequence<traits::free_arity, M...>(),
-					     std::forward<Match>(matchfx),
-					     L,
-					     fxarity,
-					     start,
-					     std::forward<Args>(args)...);
-				}
-				return matchfx(types<Fx>(), meta::index_value<I>(), return_types(), args_list(), L, fxarity, start, std::forward<Args>(args)...);
-			}
-
-			template <typename Fx, typename Fx1, typename... Fxs, std::size_t I, std::size_t I1, std::size_t... In, std::size_t... M, typename Match,
-			     typename... Args>
-			inline int overload_match_arity_single(types<Fx, Fx1, Fxs...>, std::index_sequence<I, I1, In...>, std::index_sequence<M...>, Match&& matchfx,
-			     lua_State* L, int fxarity, int start, Args&&... args) {
-				typedef lua_bind_traits<meta::unwrap_unqualified_t<Fx>> traits;
-				typedef meta::tuple_types<typename traits::return_type> return_types;
-				typedef typename traits::free_args_list args_list;
-				// compile-time eliminate any functions that we know ahead of time are of improper arity
-				if constexpr (!traits::runtime_variadics_t::value && meta::find_in_pack_v<meta::index_value<traits::free_arity>, meta::index_value<M>...>::value) {
-					return overload_match_arity(types<Fx1, Fxs...>(),
-					     std::index_sequence<I1, In...>(),
-					     std::index_sequence<M...>(),
-					     std::forward<Match>(matchfx),
-					     L,
-					     fxarity,
-					     start,
-					     std::forward<Args>(args)...);
-				}
-				else {
-					if constexpr (!traits::runtime_variadics_t::value) {
-						if (traits::free_arity != fxarity) {
-							return overload_match_arity(types<Fx1, Fxs...>(),
-								std::index_sequence<I1, In...>(),
-								std::index_sequence<traits::free_arity, M...>(),
-								std::forward<Match>(matchfx),
-								L,
-								fxarity,
-								start,
-								std::forward<Args>(args)...);
-						}
-					}
-					stack::record tracking{};
-					if (!stack::stack_detail::check_types(args_list(), L, start, no_panic, tracking)) {
-						 return overload_match_arity(types<Fx1, Fxs...>(),
-						      std::index_sequence<I1, In...>(),
-						      std::index_sequence<M...>(),
-						      std::forward<Match>(matchfx),
-						      L,
-						      fxarity,
-						      start,
-						      std::forward<Args>(args)...);
-					}
-					return matchfx(types<Fx>(), meta::index_value<I>(), return_types(), args_list(), L, fxarity, start, std::forward<Args>(args)...);
-				}
-			}
-		} // namespace overload_detail
-
-		template <typename... Functions, typename Match, typename... Args>
-		inline int overload_match_arity(Match&& matchfx, lua_State* L, int fxarity, int start, Args&&... args) {
-			return overload_detail::overload_match_arity_single(types<Functions...>(),
-			     std::make_index_sequence<sizeof...(Functions)>(),
-			     std::index_sequence<>(),
-			     std::forward<Match>(matchfx),
-			     L,
-			     fxarity,
-			     start,
-			     std::forward<Args>(args)...);
-		}
-
-		template <typename... Functions, typename Match, typename... Args>
-		inline int overload_match(Match&& matchfx, lua_State* L, int start, Args&&... args) {
-			int fxarity = lua_gettop(L) - (start - 1);
-			return overload_match_arity<Functions...>(std::forward<Match>(matchfx), L, fxarity, start, std::forward<Args>(args)...);
-		}
-
-		template <typename T, typename... TypeLists, typename Match, typename... Args>
-		inline int construct_match(Match&& matchfx, lua_State* L, int fxarity, int start, Args&&... args) {
-			// use same overload resolution matching as all other parts of the framework
-			return overload_match_arity<decltype(void_call<T, TypeLists>::call)...>(
-			     std::forward<Match>(matchfx), L, fxarity, start, std::forward<Args>(args)...);
-		}
-
-		template <typename T, bool checked, bool clean_stack, typename... TypeLists>
-		inline int construct_trampolined(lua_State* L) {
-			static const auto& meta = usertype_traits<T>::metatable();
-			int argcount = lua_gettop(L);
-			call_syntax syntax = argcount > 0 ? stack::get_call_syntax(L, usertype_traits<T>::user_metatable(), 1) : call_syntax::dot;
-			argcount -= static_cast<int>(syntax);
-
-			T* obj = detail::usertype_allocate<T>(L);
-			reference userdataref(L, -1);
-			stack::stack_detail::undefined_metatable umf(L, &meta[0], &stack::stack_detail::set_undefined_methods_on<T>);
-			umf();
-
-			construct_match<T, TypeLists...>(constructor_match<T, checked, clean_stack>(obj), L, argcount, 1 + static_cast<int>(syntax));
-
-			userdataref.push();
-			return 1;
-		}
-
-		template <typename T, bool checked, bool clean_stack, typename... TypeLists>
-		inline int construct(lua_State* L) {
-			return detail::static_trampoline<&construct_trampolined<T, checked, clean_stack, TypeLists...>>(L);
-		}
-
-		template <typename F, bool is_index, bool is_variable, bool checked, int boost, bool clean_stack, typename = void>
-		struct agnostic_lua_call_wrapper {
-			using wrap = wrapper<meta::unqualified_t<F>>;
-
-			template <typename Fx, typename... Args>
-			static int call(lua_State* L, Fx&& f, Args&&... args) {
-				if constexpr(is_lua_reference_v<meta::unqualified_t<Fx>>) {
-					if constexpr (is_index) {
-						return stack::push(L, std::forward<Fx>(f), std::forward<Args>(args)...);
-					}
-					else {
-						std::forward<Fx>(f) = stack::unqualified_get<F>(L, boost + (is_variable ? 3 : 1));
-						return 0;
-					}
-				}
-				else {
-					using traits_type = typename wrap::traits_type;
-					using fp_t = typename traits_type::function_pointer_type;
-					constexpr bool is_function_pointer_convertible
-					     = std::is_class_v<meta::unqualified_t<F>> && std::is_convertible_v<std::decay_t<Fx>, fp_t>;
-					if constexpr (is_function_pointer_convertible) {
-						fp_t fx = f;
-						return agnostic_lua_call_wrapper<fp_t, is_index, is_variable, checked, boost, clean_stack>{}.call(
-						     L, fx, std::forward<Args>(args)...);
-					}
-					else {
-						using returns_list = typename wrap::returns_list;
-						using args_list = typename wrap::free_args_list;
-						using caller = typename wrap::caller;
-						return stack::call_into_lua<checked, clean_stack>(
-						     returns_list(), args_list(), L, boost + 1, caller(), std::forward<Fx>(f), std::forward<Args>(args)...);
-					}
-				}
-			}
-		};
-
-		template <typename T, bool is_index, bool is_variable, bool checked, int boost, bool clean_stack, typename C>
-		struct agnostic_lua_call_wrapper<var_wrapper<T>, is_index, is_variable, checked, boost, clean_stack, C> {
-			template <typename F>
-			static int call(lua_State* L, F&& f) {
-				if constexpr (is_index) {
-					constexpr bool is_stack = is_stack_based_v<meta::unqualified_t<decltype(detail::unwrap(f.value()))>>;
-					if constexpr (clean_stack && !is_stack) {
-						lua_settop(L, 0);
-					}
-					return stack::push_reference(L, detail::unwrap(f.value()));
-				}
-				else {
-					if constexpr (std::is_const_v<meta::unwrapped_t<T>>) {
-						return luaL_error(L, "sol: cannot write to a readonly (const) variable");
-					}
-					else {
-						using R = meta::unwrapped_t<T>;
-						if constexpr (std::is_assignable_v<std::add_lvalue_reference_t<meta::unqualified_t<R>>, R>) {
-							detail::unwrap(f.value()) = stack::unqualified_get<meta::unwrapped_t<T>>(L, boost + (is_variable ? 3 : 1));
-							if (clean_stack) {
-								lua_settop(L, 0);
-							}
-							return 0;
-						}
-						else {
-							return luaL_error(L, "sol: cannot write to this variable: copy assignment/constructor not available");
-						}
-					}
-				}
-			}
-		};
-
-		template <bool is_index, bool is_variable, bool checked, int boost, bool clean_stack, typename C>
-		struct agnostic_lua_call_wrapper<lua_CFunction_ref, is_index, is_variable, checked, boost, clean_stack, C> {
-			static int call(lua_State* L, lua_CFunction_ref f) {
-				return f(L);
-			}
-		};
-
-		template <bool is_index, bool is_variable, bool checked, int boost, bool clean_stack, typename C>
-		struct agnostic_lua_call_wrapper<lua_CFunction, is_index, is_variable, checked, boost, clean_stack, C> {
-			static int call(lua_State* L, lua_CFunction f) {
-				return f(L);
-			}
-		};
-
-#if defined(SOL_NOEXCEPT_FUNCTION_TYPE) && SOL_NOEXCEPT_FUNCTION_TYPE
-		template <bool is_index, bool is_variable, bool checked, int boost, bool clean_stack, typename C>
-		struct agnostic_lua_call_wrapper<detail::lua_CFunction_noexcept, is_index, is_variable, checked, boost, clean_stack, C> {
-			static int call(lua_State* L, detail::lua_CFunction_noexcept f) {
-				return f(L);
-			}
-		};
-#endif // noexcept function types
-
-		template <bool is_index, bool is_variable, bool checked, int boost, bool clean_stack, typename C>
-		struct agnostic_lua_call_wrapper<detail::no_prop, is_index, is_variable, checked, boost, clean_stack, C> {
-			static int call(lua_State* L, const detail::no_prop&) {
-				return luaL_error(L, is_index ? "sol: cannot read from a writeonly property" : "sol: cannot write to a readonly property");
-			}
-		};
-
-		template <bool is_index, bool is_variable, bool checked, int boost, bool clean_stack, typename C>
-		struct agnostic_lua_call_wrapper<no_construction, is_index, is_variable, checked, boost, clean_stack, C> {
-			static int call(lua_State* L, const no_construction&) {
-				return function_detail::no_construction_error(L);
-			}
-		};
-
-		template <typename... Args, bool is_index, bool is_variable, bool checked, int boost, bool clean_stack, typename C>
-		struct agnostic_lua_call_wrapper<bases<Args...>, is_index, is_variable, checked, boost, clean_stack, C> {
-			static int call(lua_State*, const bases<Args...>&) {
-				// Uh. How did you even call this, lul
-				return 0;
-			}
-		};
-
-		template <typename T, bool is_index, bool is_variable, bool checked, int boost, bool clean_stack, typename C>
-		struct agnostic_lua_call_wrapper<std::reference_wrapper<T>, is_index, is_variable, checked, boost, clean_stack, C> {
-			static int call(lua_State* L, std::reference_wrapper<T> f) {
-				agnostic_lua_call_wrapper<T, is_index, is_variable, checked, boost, clean_stack> alcw{};
-				return alcw.call(L, f.get());
-			}
-		};
-
-		template <typename T, typename F, bool is_index, bool is_variable, bool checked = detail::default_safe_function_calls, int boost = 0,
-		     bool clean_stack = true, typename = void>
-		struct lua_call_wrapper {
-			template <typename Fx, typename... Args>
-			static int call(lua_State* L, Fx&& fx, Args&&... args) {
-				if constexpr (std::is_member_function_pointer_v<F>) {
-					using wrap = wrapper<F>;
-					using object_type = typename wrap::object_type;
-					if constexpr (sizeof...(Args) < 1) {
-						using Ta = meta::conditional_t<std::is_void_v<T>, object_type, T>;
-#if defined(SOL_SAFE_USERTYPE) && SOL_SAFE_USERTYPE
-						auto maybeo = stack::check_get<Ta*>(L, 1);
-						if (!maybeo || maybeo.value() == nullptr) {
-							return luaL_error(L,
-							     "sol: received nil for 'self' argument (use ':' for accessing member functions, make sure member variables are "
-							     "preceeded by the "
-							     "actual object with '.' syntax)");
-						}
-						object_type* o = static_cast<object_type*>(maybeo.value());
-						return call(L, std::forward<Fx>(fx), *o);
-#else
-						object_type& o = static_cast<object_type&>(*stack::unqualified_get<non_null<Ta*>>(L, 1));
-						return call(L, std::forward<Fx>(fx), o);
-#endif // Safety
-					}
-					else {
-						using returns_list = typename wrap::returns_list;
-						using args_list = typename wrap::args_list;
-						using caller = typename wrap::caller;
-						return stack::call_into_lua<checked, clean_stack>(
-						     returns_list(), args_list(), L, boost + (is_variable ? 3 : 2), caller(), std::forward<Fx>(fx), std::forward<Args>(args)...);
-					}
-				}
-				else if constexpr (std::is_member_object_pointer_v<F>) {
-					using wrap = wrapper<F>;
-					using object_type = typename wrap::object_type;
-					if constexpr (is_index) {
-						if constexpr (sizeof...(Args) < 1) {
-							using Ta = meta::conditional_t<std::is_void_v<T>, object_type, T>;
-#if defined(SOL_SAFE_USERTYPE) && SOL_SAFE_USERTYPE
-							auto maybeo = stack::check_get<Ta*>(L, 1);
-							if (!maybeo || maybeo.value() == nullptr) {
-								if (is_variable) {
-									return luaL_error(L, "sol: 'self' argument is lua_nil (bad '.' access?)");
-								}
-								return luaL_error(L, "sol: 'self' argument is lua_nil (pass 'self' as first argument)");
-							}
-							object_type* o = static_cast<object_type*>(maybeo.value());
-							return call(L, std::forward<Fx>(fx), *o);
-#else
-							object_type& o = static_cast<object_type&>(*stack::get<non_null<Ta*>>(L, 1));
-							return call(L, std::forward<Fx>(fx), o);
-#endif // Safety
-						}
-						else {
-							using returns_list = typename wrap::returns_list;
-							using caller = typename wrap::caller;
-							return stack::call_into_lua<checked, clean_stack>(
-							     returns_list(), types<>(), L, boost + (is_variable ? 3 : 2), caller(), std::forward<Fx>(fx), std::forward<Args>(args)...);
-						}
-					}
-					else {
-						using traits_type = lua_bind_traits<F>;
-						using return_type = typename traits_type::return_type;
-						constexpr bool is_const = std::is_const_v<std::remove_reference_t<return_type>>;
-						if constexpr (is_const) {
-							(void)fx;
-							(void)detail::swallow{ 0, (static_cast<void>(args), 0)... };
-							return luaL_error(L, "sol: cannot write to a readonly (const) variable");
-						}
-						else {
-							using u_return_type = meta::unqualified_t<return_type>;
-							constexpr bool is_assignable = std::is_copy_assignable_v<u_return_type> || std::is_array_v<u_return_type>;
-							if constexpr (!is_assignable) {
-								(void)fx;
-								(void)detail::swallow{ 0, ((void)args, 0)... };
-								return luaL_error(L, "sol: cannot write to this variable: copy assignment/constructor not available");
-							}
-							else {
-								using args_list = typename wrap::args_list;
-								using caller = typename wrap::caller;
-								if constexpr (sizeof...(Args) > 0) {
-									return stack::call_into_lua<checked, clean_stack>(types<void>(),
-										args_list(),
-										L,
-										boost + (is_variable ? 3 : 2),
-										caller(),
-										std::forward<Fx>(fx),
-										std::forward<Args>(args)...);
-								}
-								else {
-									using Ta = meta::conditional_t<std::is_void_v<T>, object_type, T>;
-	#if defined(SOL_SAFE_USERTYPE) && SOL_SAFE_USERTYPE
-									auto maybeo = stack::check_get<Ta*>(L, 1);
-									if (!maybeo || maybeo.value() == nullptr) {
-										if (is_variable) {
-											return luaL_error(L, "sol: received nil for 'self' argument (bad '.' access?)");
-										}
-										return luaL_error(L, "sol: received nil for 'self' argument (pass 'self' as first argument)");
-									}
-									object_type* po = static_cast<object_type*>(maybeo.value());
-									object_type& o = *po;
-	#else
-									object_type& o = static_cast<object_type&>(*stack::get<non_null<Ta*>>(L, 1));
-	#endif // Safety
-
-									return stack::call_into_lua<checked, clean_stack>(
-										types<void>(), args_list(), L, boost + (is_variable ? 3 : 2), caller(), std::forward<Fx>(fx), o);
-								}
-							}
-						}
-					}
-				}
-				else {
-					agnostic_lua_call_wrapper<F, is_index, is_variable, checked, boost, clean_stack> alcw{};
-					return alcw.call(L, std::forward<Fx>(fx), std::forward<Args>(args)...);
-				}
-			}
-		};
-
-		template <typename T, typename F, bool is_index, bool is_variable, bool checked, int boost, bool clean_stack, typename C>
-		struct lua_call_wrapper<T, readonly_wrapper<F>, is_index, is_variable, checked, boost, clean_stack, C> {
-			using traits_type = lua_bind_traits<F>;
-			using wrap = wrapper<F>;
-			using object_type = typename wrap::object_type;
-
-			static int call(lua_State* L, readonly_wrapper<F>&& rw) {
-				if constexpr (!is_index) {
-					(void)rw;
-					return luaL_error(L, "sol: cannot write to a sol::readonly variable");
-				}
-				else {
-					lua_call_wrapper<T, F, true, is_variable, checked, boost, clean_stack, C> lcw;
-					return lcw.call(L, std::move(rw.value()));
-				}
-			}
-
-			static int call(lua_State* L, readonly_wrapper<F>&& rw, object_type& o) {
-				if constexpr (!is_index) {
-					(void)o;
-					return call(L, std::move(rw));
-				}
-				else {
-					lua_call_wrapper<T, F, true, is_variable, checked, boost, clean_stack, C> lcw;
-					return lcw.call(L, rw.value(), o);
-				}
-			}
-
-			static int call(lua_State* L, const readonly_wrapper<F>& rw) {
-				if constexpr (!is_index) {
-					(void)rw;
-					return luaL_error(L, "sol: cannot write to a sol::readonly variable");
-				}
-				else {
-					lua_call_wrapper<T, F, true, is_variable, checked, boost, clean_stack, C> lcw;
-					return lcw.call(L, rw.value());
-				}
-			}
-
-			static int call(lua_State* L, const readonly_wrapper<F>& rw, object_type& o) {
-				if constexpr (!is_index) {
-					(void)o;
-					return call(L, rw);
-				}
-				else {
-					lua_call_wrapper<T, F, true, is_variable, checked, boost, clean_stack, C> lcw;
-					return lcw.call(L, rw.value(), o);
-				}
-			}
-		};
-
-		template <typename T, typename... Args, bool is_index, bool is_variable, bool checked, int boost, bool clean_stack, typename C>
-		struct lua_call_wrapper<T, constructor_list<Args...>, is_index, is_variable, checked, boost, clean_stack, C> {
-			typedef constructor_list<Args...> F;
-
-			static int call(lua_State* L, F&) {
-				const auto& meta = usertype_traits<T>::metatable();
-				int argcount = lua_gettop(L);
-				call_syntax syntax = argcount > 0 ? stack::get_call_syntax(L, usertype_traits<T>::user_metatable(), 1) : call_syntax::dot;
-				argcount -= static_cast<int>(syntax);
-
-				T* obj = detail::usertype_allocate<T>(L);
-				reference userdataref(L, -1);
-				stack::stack_detail::undefined_metatable umf(L, &meta[0], &stack::stack_detail::set_undefined_methods_on<T>);
-				umf();
-
-				construct_match<T, Args...>(constructor_match<T, false, clean_stack>(obj), L, argcount, boost + 1 + static_cast<int>(syntax));
-
-				userdataref.push();
-				return 1;
-			}
-		};
-
-		template <typename T, typename... Cxs, bool is_index, bool is_variable, bool checked, int boost, bool clean_stack, typename C>
-		struct lua_call_wrapper<T, constructor_wrapper<Cxs...>, is_index, is_variable, checked, boost, clean_stack, C> {
-			typedef constructor_wrapper<Cxs...> F;
-
-			struct onmatch {
-				template <typename Fx, std::size_t I, typename... R, typename... Args>
-				int operator()(types<Fx>, meta::index_value<I>, types<R...> r, types<Args...> a, lua_State* L, int, int start, F& f) {
-					const auto& meta = usertype_traits<T>::metatable();
-					T* obj = detail::usertype_allocate<T>(L);
-					reference userdataref(L, -1);
-					stack::stack_detail::undefined_metatable umf(L, &meta[0], &stack::stack_detail::set_undefined_methods_on<T>);
-					umf();
-
-					auto& func = std::get<I>(f.functions);
-					stack::call_into_lua<checked, clean_stack>(r, a, L, boost + start, func, detail::implicit_wrapper<T>(obj));
-
-					userdataref.push();
-					return 1;
-				}
-			};
-
-			static int call(lua_State* L, F& f) {
-				call_syntax syntax = stack::get_call_syntax(L, usertype_traits<T>::user_metatable(), 1);
-				int syntaxval = static_cast<int>(syntax);
-				int argcount = lua_gettop(L) - syntaxval;
-				return construct_match<T, meta::pop_front_type_t<meta::function_args_t<Cxs>>...>(onmatch(), L, argcount, 1 + syntaxval, f);
-			}
-		};
-
-		template <typename T, typename Fx, bool is_index, bool is_variable, bool checked, int boost, bool clean_stack, typename C>
-		struct lua_call_wrapper<T, destructor_wrapper<Fx>, is_index, is_variable, checked, boost, clean_stack, C> {
-
-			template <typename F>
-			static int call(lua_State* L, F&& f) {
-				if constexpr (std::is_void_v<Fx>) {
-					return detail::usertype_alloc_destruct<T>(L);
-				}
-				else {
-					using uFx = meta::unqualified_t<Fx>;
-					lua_call_wrapper<T, uFx, is_index, is_variable, checked, boost, clean_stack> lcw{};
-					return lcw.call(L, std::forward<F>(f).fx);
-				}
-			}
-		};
-
-		template <typename T, typename... Fs, bool is_index, bool is_variable, bool checked, int boost, bool clean_stack, typename C>
-		struct lua_call_wrapper<T, overload_set<Fs...>, is_index, is_variable, checked, boost, clean_stack, C> {
-			typedef overload_set<Fs...> F;
-
-			struct on_match {
-				template <typename Fx, std::size_t I, typename... R, typename... Args>
-				int operator()(types<Fx>, meta::index_value<I>, types<R...>, types<Args...>, lua_State* L, int, int, F& fx) {
-					auto& f = std::get<I>(fx.functions);
-					return lua_call_wrapper<T, Fx, is_index, is_variable, checked, boost>{}.call(L, f);
-				}
-			};
-
-			static int call(lua_State* L, F& fx) {
-				return overload_match_arity<Fs...>(on_match(), L, lua_gettop(L), 1, fx);
-			}
-		};
-
-		template <typename T, typename... Fs, bool is_index, bool is_variable, bool checked, int boost, bool clean_stack, typename C>
-		struct lua_call_wrapper<T, factory_wrapper<Fs...>, is_index, is_variable, checked, boost, clean_stack, C> {
-			typedef factory_wrapper<Fs...> F;
-
-			struct on_match {
-				template <typename Fx, std::size_t I, typename... R, typename... Args>
-				int operator()(types<Fx>, meta::index_value<I>, types<R...>, types<Args...>, lua_State* L, int, int, F& fx) {
-					auto& f = std::get<I>(fx.functions);
-					return lua_call_wrapper<T, Fx, is_index, is_variable, checked, boost, clean_stack>{}.call(L, f);
-				}
-			};
-
-			static int call(lua_State* L, F& fx) {
-				return overload_match_arity<Fs...>(on_match(), L, lua_gettop(L) - boost, 1 + boost, fx);
-			}
-		};
-
-		template <typename T, typename R, typename W, bool is_index, bool is_variable, bool checked, int boost, bool clean_stack, typename C>
-		struct lua_call_wrapper<T, property_wrapper<R, W>, is_index, is_variable, checked, boost, clean_stack, C> {
-			typedef meta::conditional_t<is_index, R, W> P;
-			typedef meta::unqualified_t<P> U;
-			typedef wrapper<U> wrap;
-			typedef lua_bind_traits<U> traits_type;
-			typedef meta::unqualified_t<typename traits_type::template arg_at<0>> object_type;
-
-			template <typename F, typename... Args>
-			static int call(lua_State* L, F&& f, Args&&... args) {
-				constexpr bool is_specialized = meta::any<
-					std::is_same<U, detail::no_prop>,
-				     meta::is_specialization_of<U, var_wrapper>,
-				     meta::is_specialization_of<U, constructor_wrapper>,
-				     meta::is_specialization_of<U, constructor_list>,
-				     std::is_member_pointer<U>>::value;
-				if constexpr (is_specialized) {
-					if constexpr (is_index) {
-						decltype(auto) p = f.read();
-						lua_call_wrapper<T, meta::unqualified_t<decltype(p)>, is_index, is_variable, checked, boost, clean_stack> lcw{};
-						return lcw.call(L, p, std::forward<Args>(args)...);
-					}
-					else {
-						decltype(auto) p = f.write();
-						lua_call_wrapper<T, meta::unqualified_t<decltype(p)>, is_index, is_variable, checked, boost, clean_stack> lcw{};
-						return lcw.call(L, p, std::forward<Args>(args)...);
-					}
-				}
-				else {
-					constexpr bool non_class_object_type = meta::any<std::is_void<object_type>,
-						meta::boolean<lua_type_of<meta::unwrap_unqualified_t<object_type>>::value != type::userdata>>::value;
-					if constexpr (non_class_object_type) {
-						// The type being void means we don't have any arguments, so it might be a free functions?
-						using args_list = typename traits_type::free_args_list;
-						using returns_list = typename wrap::returns_list;
-						using caller = typename wrap::caller;
-						if constexpr (is_index) {
-							decltype(auto) pf = f.read();
-							return stack::call_into_lua<checked, clean_stack>(
-							     returns_list(), args_list(), L, boost + (is_variable ? 3 : 2), caller(), pf);
-						}
-						else {
-							decltype(auto) pf = f.write();
-							return stack::call_into_lua<checked, clean_stack>(
-							     returns_list(), args_list(), L, boost + (is_variable ? 3 : 2), caller(), pf);
-						}
-					}
-					else {
-						using args_list = meta::pop_front_type_t<typename traits_type::free_args_list>;
-						using Ta = T;
-						using Oa = std::remove_pointer_t<object_type>;
-#if defined(SOL_SAFE_USERTYPE) && SOL_SAFE_USERTYPE
-						auto maybeo = stack::check_get<Ta*>(L, 1);
-						if (!maybeo || maybeo.value() == nullptr) {
-							if (is_variable) {
-								return luaL_error(L, "sol: 'self' argument is lua_nil (bad '.' access?)");
-							}
-							return luaL_error(L, "sol: 'self' argument is lua_nil (pass 'self' as first argument)");
-						}
-						Oa* o = static_cast<Oa*>(maybeo.value());
-#else
-						Oa* o = static_cast<Oa*>(stack::get<non_null<Ta*>>(L, 1));
-#endif // Safety
-						using returns_list = typename wrap::returns_list;
-						using caller = typename wrap::caller;
-						if constexpr (is_index) {
-							decltype(auto) pf = f.read();
-							return stack::call_into_lua<checked, clean_stack>(
-							     returns_list(), args_list(), L, boost + (is_variable ? 3 : 2), caller(), pf, detail::implicit_wrapper<Oa>(*o));
-						}
-						else {
-							decltype(auto) pf = f.write();
-							return stack::call_into_lua<checked, clean_stack>(
-							     returns_list(), args_list(), L, boost + (is_variable ? 3 : 2), caller(), pf, detail::implicit_wrapper<Oa>(*o));
-						}
-					}
-				}
-			}
-		};
-
-		template <typename T, typename V, bool is_index, bool is_variable, bool checked, int boost, bool clean_stack, typename C>
-		struct lua_call_wrapper<T, protect_t<V>, is_index, is_variable, checked, boost, clean_stack, C> {
-			typedef protect_t<V> F;
-
-			template <typename... Args>
-			static int call(lua_State* L, F& fx, Args&&... args) {
-				return lua_call_wrapper<T, V, is_index, is_variable, true, boost, clean_stack>{}.call(L, fx.value, std::forward<Args>(args)...);
-			}
-		};
-
-		template <typename T, typename F, typename... Policies, bool is_index, bool is_variable, bool checked, int boost, bool clean_stack, typename C>
-		struct lua_call_wrapper<T, policy_wrapper<F, Policies...>, is_index, is_variable, checked, boost, clean_stack, C> {
-			typedef policy_wrapper<F, Policies...> P;
-
-			template <std::size_t... In>
-			static int call(std::index_sequence<In...>, lua_State* L, P& fx) {
-				int pushed = lua_call_wrapper<T, F, is_index, is_variable, checked, boost, false, C>{}.call(L, fx.value);
-				(void)detail::swallow{ int(), (policy_detail::handle_policy(std::get<In>(fx.policies), L, pushed), int())... };
-				return pushed;
-			}
-
-			static int call(lua_State* L, P& fx) {
-				typedef typename P::indices indices;
-				return call(indices(), L, fx);
-			}
-		};
-
-		template <typename T, typename Y, bool is_index, bool is_variable, bool checked, int boost, bool clean_stack, typename C>
-		struct lua_call_wrapper<T, yielding_t<Y>, is_index, is_variable, checked, boost, clean_stack, C> {
-			template <typename F>
-			static int call(lua_State* L, F&& f) {
-				return lua_call_wrapper<T, meta::unqualified_t<Y>, is_index, is_variable, checked, boost, clean_stack>{}.call(L, f.func);
-			}
-		};
-
-		template <typename T, typename Sig, typename P, bool is_index, bool is_variable, bool checked, int boost, bool clean_stack, typename C>
-		struct lua_call_wrapper<T, function_arguments<Sig, P>, is_index, is_variable, checked, boost, clean_stack, C> {
-			static int call(lua_State* L, const function_arguments<Sig, P>& f) {
-				lua_call_wrapper<T, meta::unqualified_t<P>, is_index, is_variable, checked, boost, clean_stack> lcw{};
-				return lcw.call(L, std::get<0>(f.arguments));
-			}
-
-			static int call(lua_State* L, function_arguments<Sig, P>&& f) {
-				lua_call_wrapper<T, meta::unqualified_t<P>, is_index, is_variable, checked, boost, clean_stack> lcw{};
-				return lcw.call(L, std::get<0>(std::move(f.arguments)));
-			}
-		};
-
-		template <typename T, bool is_index, bool is_variable, int boost = 0, bool checked = detail::default_safe_function_calls, bool clean_stack = true,
-		     typename Fx, typename... Args>
-		inline int call_wrapped(lua_State* L, Fx&& fx, Args&&... args) {
-			using uFx = meta::unqualified_t<Fx>;
-			if constexpr (meta::is_specialization_of_v<uFx, yielding_t>) {
-				using real_fx = meta::unqualified_t<decltype(std::forward<Fx>(fx).func)>;
-				lua_call_wrapper<T, real_fx, is_index, is_variable, checked, boost, clean_stack> lcw{};
-				int nr = lcw.call(L, std::forward<Fx>(fx).func, std::forward<Args>(args)...);
-				return lua_yield(L, nr);
-			}
-			else {
-				lua_call_wrapper<T, uFx, is_index, is_variable, checked, boost, clean_stack> lcw{};
-				return lcw.call(L, std::forward<Fx>(fx), std::forward<Args>(args)...);
-			}
-		}
-
-		template <typename T, bool is_index, bool is_variable, typename F, int start = 1, bool checked = detail::default_safe_function_calls, bool clean_stack = true>
-		inline int call_user(lua_State* L) {
-			auto& fx = stack::unqualified_get<user<F>>(L, upvalue_index(start));
-			return call_wrapped<T, is_index, is_variable, 0, checked, clean_stack>(L, fx);
-		}
-
-		template <typename T, typename = void>
-		struct is_var_bind : std::false_type {};
-
-		template <typename T>
-		struct is_var_bind<T, std::enable_if_t<std::is_member_object_pointer<T>::value>> : std::true_type {};
-
-		template <typename T>
-		struct is_var_bind<T, std::enable_if_t<is_lua_reference_or_proxy<T>::value>> : std::true_type {};
-
-		template <>
-		struct is_var_bind<detail::no_prop> : std::true_type {};
-
-		template <typename R, typename W>
-		struct is_var_bind<property_wrapper<R, W>> : std::true_type {};
-
-		template <typename T>
-		struct is_var_bind<var_wrapper<T>> : std::true_type {};
-
-		template <typename T>
-		struct is_var_bind<readonly_wrapper<T>> : is_var_bind<meta::unqualified_t<T>> {};
-
-		template <typename F, typename... Policies>
-		struct is_var_bind<policy_wrapper<F, Policies...>> : is_var_bind<meta::unqualified_t<F>> {};
-	} // namespace call_detail
-
-	template <typename T>
-	struct is_variable_binding : call_detail::is_var_bind<meta::unqualified_t<T>> {};
-
-	template <typename T>
-	using is_var_wrapper = meta::is_specialization_of<T, var_wrapper>;
-
-	template <typename T>
-	struct is_function_binding : meta::neg<is_variable_binding<T>> {};
-
-} // namespace sol
-
-#endif // SOL_CALL_HPP