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			280 lines
		
	
	
	
		
			12 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			280 lines
		
	
	
	
		
			12 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| // sol2
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| 
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| // The MIT License (MIT)
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| 
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| // Copyright (c) 2013-2021 Rapptz, ThePhD and contributors
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| 
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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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| 
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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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| 
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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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| 
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| #ifndef SOL_WRAPPER_HPP
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| #define SOL_WRAPPER_HPP
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| 
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| #include <sol/types.hpp>
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| 
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| namespace sol {
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| 
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| 	namespace detail {
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| 		template <typename T>
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| 		using array_return_type = meta::conditional_t<std::is_array<T>::value, std::add_lvalue_reference_t<T>, T>;
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| 	}
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| 
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| 	template <typename F, typename = void>
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| 	struct wrapper {
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| 		typedef lua_bind_traits<meta::unqualified_t<F>> traits_type;
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| 		typedef typename traits_type::args_list args_list;
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| 		typedef typename traits_type::args_list free_args_list;
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| 		typedef typename traits_type::returns_list returns_list;
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| 
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| 		template <typename... Args>
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| 		static decltype(auto) call(F& f, Args&&... args) {
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| 			return f(std::forward<Args>(args)...);
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| 		}
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| 
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| 		struct caller {
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| 			template <typename... Args>
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| 			decltype(auto) operator()(F& fx, Args&&... args) const {
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| 				return call(fx, std::forward<Args>(args)...);
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| 			}
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| 		};
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| 	};
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| 
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| 	template <typename F>
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| 	struct wrapper<F, std::enable_if_t<std::is_function<std::remove_pointer_t<meta::unqualified_t<F>>>::value>> {
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| 		typedef lua_bind_traits<std::remove_pointer_t<meta::unqualified_t<F>>> traits_type;
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| 		typedef typename traits_type::args_list args_list;
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| 		typedef typename traits_type::args_list free_args_list;
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| 		typedef typename traits_type::returns_list returns_list;
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| 
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| 		template <F fx, typename... Args>
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| 		static decltype(auto) invoke(Args&&... args) {
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| 			return fx(std::forward<Args>(args)...);
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| 		}
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| 
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| 		template <typename... Args>
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| 		static decltype(auto) call(F& fx, Args&&... args) {
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| 			return fx(std::forward<Args>(args)...);
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| 		}
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| 
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| 		struct caller {
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| 			template <typename... Args>
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| 			decltype(auto) operator()(F& fx, Args&&... args) const {
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| 				return call(fx, std::forward<Args>(args)...);
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| 			}
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| 		};
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| 
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| 		template <F fx>
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| 		struct invoker {
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| 			template <typename... Args>
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| 			decltype(auto) operator()(Args&&... args) const {
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| 				return invoke<fx>(std::forward<Args>(args)...);
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| 			}
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| 		};
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| 	};
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| 
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| 	template <typename F>
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| 	struct wrapper<F, std::enable_if_t<std::is_member_object_pointer<meta::unqualified_t<F>>::value>> {
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| 		typedef lua_bind_traits<meta::unqualified_t<F>> traits_type;
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| 		typedef typename traits_type::object_type object_type;
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| 		typedef typename traits_type::return_type return_type;
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| 		typedef typename traits_type::args_list args_list;
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| 		typedef types<object_type&, return_type> free_args_list;
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| 		typedef typename traits_type::returns_list returns_list;
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| 
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| 		template <F fx>
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| 		static auto call(object_type& mem) -> detail::array_return_type<decltype(mem.*fx)> {
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| 			return mem.*fx;
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| 		}
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| 
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| 		template <F fx, typename Arg, typename... Args>
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| 		static decltype(auto) invoke(object_type& mem, Arg&& arg, Args&&...) {
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| 			return mem.*fx = std::forward<Arg>(arg);
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| 		}
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| 
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| 		template <typename Fx>
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| 		static auto call(Fx&& fx, object_type& mem) -> detail::array_return_type<decltype(mem.*fx)> {
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| 			return mem.*fx;
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| 		}
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| 
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| 		template <typename Fx, typename Arg, typename... Args>
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| 		static void call(Fx&& fx, object_type& mem, Arg&& arg, Args&&...) {
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| 			using actual_type = meta::unqualified_t<detail::array_return_type<decltype(mem.*fx)>>;
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| 			if constexpr (std::is_array_v<actual_type>) {
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| 				using std::cbegin;
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| 				using std::cend;
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| 				auto first = cbegin(arg);
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| 				auto last = cend(arg);
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| 				for (std::size_t i = 0; first != last; ++i, ++first) {
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| 					(mem.*fx)[i] = *first;
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| 				}
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| 			}
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| 			else {
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| 				(mem.*fx) = std::forward<Arg>(arg);
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| 			}
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| 		}
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| 
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| 		struct caller {
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| 			template <typename Fx, typename... Args>
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| 			decltype(auto) operator()(Fx&& fx, object_type& mem, Args&&... args) const {
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| 				return call(std::forward<Fx>(fx), mem, std::forward<Args>(args)...);
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| 			}
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| 		};
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| 
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| 		template <F fx>
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| 		struct invoker {
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| 			template <typename... Args>
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| 			decltype(auto) operator()(Args&&... args) const {
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| 				return invoke<fx>(std::forward<Args>(args)...);
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| 			}
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| 		};
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| 	};
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| 
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| 	template <typename F, typename R, typename O, typename... FArgs>
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| 	struct member_function_wrapper {
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| 		typedef O object_type;
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| 		typedef lua_bind_traits<F> traits_type;
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| 		typedef typename traits_type::args_list args_list;
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| 		typedef types<object_type&, FArgs...> free_args_list;
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| 		typedef meta::tuple_types<R> returns_list;
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| 
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| 		template <F fx, typename... Args>
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| 		static R invoke(O& mem, Args&&... args) {
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| 			return (mem.*fx)(std::forward<Args>(args)...);
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| 		}
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| 
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| 		template <typename Fx, typename... Args>
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| 		static R call(Fx&& fx, O& mem, Args&&... args) {
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| 			return (mem.*fx)(std::forward<Args>(args)...);
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| 		}
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| 
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| 		struct caller {
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| 			template <typename Fx, typename... Args>
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| 			decltype(auto) operator()(Fx&& fx, O& mem, Args&&... args) const {
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| 				return call(std::forward<Fx>(fx), mem, std::forward<Args>(args)...);
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| 			}
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| 		};
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| 
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| 		template <F fx>
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| 		struct invoker {
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| 			template <typename... Args>
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| 			decltype(auto) operator()(O& mem, Args&&... args) const {
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| 				return invoke<fx>(mem, std::forward<Args>(args)...);
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| 			}
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| 		};
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| 	};
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args...)> : public member_function_wrapper<R (O::*)(Args...), R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args...) const> : public member_function_wrapper<R (O::*)(Args...) const, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args...) const volatile> : public member_function_wrapper<R (O::*)(Args...) const volatile, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args...)&> : public member_function_wrapper<R (O::*)(Args...)&, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args...) const&> : public member_function_wrapper<R (O::*)(Args...) const&, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args...) const volatile&> : public member_function_wrapper<R (O::*)(Args...) const volatile&, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args..., ...)&> : public member_function_wrapper<R (O::*)(Args..., ...)&, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args..., ...) const&> : public member_function_wrapper<R (O::*)(Args..., ...) const&, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args..., ...) const volatile&> : public member_function_wrapper<R (O::*)(Args..., ...) const volatile&, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args...) &&> : public member_function_wrapper<R (O::*)(Args...)&, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args...) const&&> : public member_function_wrapper<R (O::*)(Args...) const&, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args...) const volatile&&> : public member_function_wrapper<R (O::*)(Args...) const volatile&, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args..., ...) &&> : public member_function_wrapper<R (O::*)(Args..., ...)&, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args..., ...) const&&> : public member_function_wrapper<R (O::*)(Args..., ...) const&, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args..., ...) const volatile&&> : public member_function_wrapper<R (O::*)(Args..., ...) const volatile&, R, O, Args...> { };
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| 
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| #if SOL_IS_ON(SOL_USE_NOEXCEPT_FUNCTION_TYPE_I_)
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| 	// noexcept has become a part of a function's type
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args...) noexcept> : public member_function_wrapper<R (O::*)(Args...) noexcept, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args...) const noexcept> : public member_function_wrapper<R (O::*)(Args...) const noexcept, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args...) const volatile noexcept> : public member_function_wrapper<R (O::*)(Args...) const volatile noexcept, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args...)& noexcept> : public member_function_wrapper<R (O::*)(Args...)& noexcept, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args...) const& noexcept> : public member_function_wrapper<R (O::*)(Args...) const& noexcept, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args...) const volatile& noexcept> : public member_function_wrapper<R (O::*)(Args...) const volatile& noexcept, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args..., ...)& noexcept> : public member_function_wrapper<R (O::*)(Args..., ...)& noexcept, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args..., ...) const& noexcept> : public member_function_wrapper<R (O::*)(Args..., ...) const& noexcept, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args..., ...) const volatile& noexcept>
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| 	: public member_function_wrapper<R (O::*)(Args..., ...) const volatile& noexcept, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args...)&& noexcept> : public member_function_wrapper<R (O::*)(Args...)& noexcept, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args...) const&& noexcept> : public member_function_wrapper<R (O::*)(Args...) const& noexcept, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args...) const volatile&& noexcept> : public member_function_wrapper<R (O::*)(Args...) const volatile& noexcept, R, O, Args...> {
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| 	};
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args..., ...)&& noexcept> : public member_function_wrapper<R (O::*)(Args..., ...)& noexcept, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args..., ...) const&& noexcept> : public member_function_wrapper<R (O::*)(Args..., ...) const& noexcept, R, O, Args...> { };
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| 
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| 	template <typename R, typename O, typename... Args>
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| 	struct wrapper<R (O::*)(Args..., ...) const volatile&& noexcept>
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| 	: public member_function_wrapper<R (O::*)(Args..., ...) const volatile& noexcept, R, O, Args...> { };
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| 
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| #endif // noexcept is part of a function's type
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| 
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| } // namespace sol
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| 
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| #endif // SOL_WRAPPER_HPP
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