// sol2 // The MIT License (MIT) // Copyright (c) 2013-2021 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_BIND_TRAITS_HPP #define SOL_BIND_TRAITS_HPP #include <sol/forward.hpp> #include <sol/base_traits.hpp> #include <sol/tuple.hpp> namespace sol { namespace meta { namespace meta_detail { template <typename F> using detect_deducible_signature = decltype(&F::operator(), void()); } // namespace meta_detail template <typename F> using call_operator_deducible = typename is_detected<meta_detail::detect_deducible_signature, F>::type; template <typename F> constexpr inline bool call_operator_deducible_v = call_operator_deducible<F>::value; namespace meta_detail { template <std::size_t I, typename T> struct void_tuple_element : meta::tuple_element<I, T> { }; template <std::size_t I> struct void_tuple_element<I, std::tuple<>> { typedef void type; }; template <std::size_t I, typename T> using void_tuple_element_t = typename void_tuple_element<I, T>::type; template <bool it_is_noexcept, bool has_c_variadic, typename T, typename R, typename... Args> struct basic_traits { private: using first_type = meta::conditional_t<std::is_void<T>::value, int, T>&; public: inline static constexpr const bool is_noexcept = it_is_noexcept; inline static constexpr bool is_member_function = std::is_void<T>::value; inline static constexpr bool has_c_var_arg = has_c_variadic; inline static constexpr std::size_t arity = sizeof...(Args); inline static constexpr std::size_t free_arity = sizeof...(Args) + static_cast<std::size_t>(!std::is_void<T>::value); typedef types<Args...> args_list; typedef std::tuple<Args...> args_tuple; typedef T object_type; typedef R return_type; typedef tuple_types<R> returns_list; typedef R(function_type)(Args...); typedef meta::conditional_t<std::is_void<T>::value, args_list, types<first_type, Args...>> free_args_list; typedef meta::conditional_t<std::is_void<T>::value, R(Args...), R(first_type, Args...)> free_function_type; typedef meta::conditional_t<std::is_void<T>::value, R (*)(Args...), R (*)(first_type, Args...)> free_function_pointer_type; typedef std::remove_pointer_t<free_function_pointer_type> signature_type; template <std::size_t i> using arg_at = void_tuple_element_t<i, args_tuple>; }; template <typename Signature, bool b = call_operator_deducible<Signature>::value> struct fx_traits : public basic_traits<false, false, void, void> { }; // Free Functions template <typename R, typename... Args> struct fx_traits<R(Args...), false> : public basic_traits<false, false, void, R, Args...> { typedef R (*function_pointer_type)(Args...); }; template <typename R, typename... Args> struct fx_traits<R (*)(Args...), false> : public basic_traits<false, false, void, R, Args...> { typedef R (*function_pointer_type)(Args...); }; template <typename R, typename... Args> struct fx_traits<R(Args..., ...), false> : public basic_traits<false, true, void, R, Args...> { typedef R (*function_pointer_type)(Args..., ...); }; template <typename R, typename... Args> struct fx_traits<R (*)(Args..., ...), false> : public basic_traits<false, true, void, R, Args...> { typedef R (*function_pointer_type)(Args..., ...); }; // Member Functions /* C-Style Variadics */ template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args...), false> : public basic_traits<false, false, T, R, Args...> { typedef R (T::*function_pointer_type)(Args...); }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args..., ...), false> : public basic_traits<false, true, T, R, Args...> { typedef R (T::*function_pointer_type)(Args..., ...); }; /* Const Volatile */ template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args...) const, false> : public basic_traits<false, false, T, R, Args...> { typedef R (T::*function_pointer_type)(Args...) const; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args..., ...) const, false> : public basic_traits<false, true, T, R, Args...> { typedef R (T::*function_pointer_type)(Args..., ...) const; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args...) const volatile, false> : public basic_traits<false, false, T, R, Args...> { typedef R (T::*function_pointer_type)(Args...) const volatile; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args..., ...) const volatile, false> : public basic_traits<false, true, T, R, Args...> { typedef R (T::*function_pointer_type)(Args..., ...) const volatile; }; /* Member Function Qualifiers */ template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args...)&, false> : public basic_traits<false, false, T, R, Args...> { typedef R (T::*function_pointer_type)(Args...) &; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args..., ...)&, false> : public basic_traits<false, true, T, R, Args...> { typedef R (T::*function_pointer_type)(Args..., ...) &; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args...) const&, false> : public basic_traits<false, false, T, R, Args...> { typedef R (T::*function_pointer_type)(Args...) const&; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args..., ...) const&, false> : public basic_traits<false, true, T, R, Args...> { typedef R (T::*function_pointer_type)(Args..., ...) const&; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args...) const volatile&, false> : public basic_traits<false, false, T, R, Args...> { typedef R (T::*function_pointer_type)(Args...) const volatile&; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args..., ...) const volatile&, false> : public basic_traits<false, true, T, R, Args...> { typedef R (T::*function_pointer_type)(Args..., ...) const volatile&; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args...)&&, false> : public basic_traits<false, false, T, R, Args...> { typedef R (T::*function_pointer_type)(Args...) &&; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args..., ...)&&, false> : public basic_traits<false, true, T, R, Args...> { typedef R (T::*function_pointer_type)(Args..., ...) &&; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args...) const&&, false> : public basic_traits<false, false, T, R, Args...> { typedef R (T::*function_pointer_type)(Args...) const&&; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args..., ...) const&&, false> : public basic_traits<false, true, T, R, Args...> { typedef R (T::*function_pointer_type)(Args..., ...) const&&; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args...) const volatile&&, false> : public basic_traits<false, false, T, R, Args...> { typedef R (T::*function_pointer_type)(Args...) const volatile&&; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args..., ...) const volatile&&, false> : public basic_traits<false, true, T, R, Args...> { typedef R (T::*function_pointer_type)(Args..., ...) const volatile&&; }; #if SOL_IS_ON(SOL_USE_NOEXCEPT_FUNCTION_TYPE_I_) template <typename R, typename... Args> struct fx_traits<R(Args...) noexcept, false> : public basic_traits<true, false, void, R, Args...> { typedef R (*function_pointer_type)(Args...) noexcept; }; template <typename R, typename... Args> struct fx_traits<R (*)(Args...) noexcept, false> : public basic_traits<true, false, void, R, Args...> { typedef R (*function_pointer_type)(Args...) noexcept; }; template <typename R, typename... Args> struct fx_traits<R(Args..., ...) noexcept, false> : public basic_traits<true, true, void, R, Args...> { typedef R (*function_pointer_type)(Args..., ...) noexcept; }; template <typename R, typename... Args> struct fx_traits<R (*)(Args..., ...) noexcept, false> : public basic_traits<true, true, void, R, Args...> { typedef R (*function_pointer_type)(Args..., ...) noexcept; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args...) noexcept, false> : public basic_traits<true, false, T, R, Args...> { typedef R (T::*function_pointer_type)(Args...) noexcept; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args..., ...) noexcept, false> : public basic_traits<true, true, T, R, Args...> { typedef R (T::*function_pointer_type)(Args..., ...) noexcept; }; /* Const Volatile */ template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args...) const noexcept, false> : public basic_traits<true, false, T, R, Args...> { typedef R (T::*function_pointer_type)(Args...) const noexcept; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args..., ...) const noexcept, false> : public basic_traits<true, true, T, R, Args...> { typedef R (T::*function_pointer_type)(Args..., ...) const noexcept; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args...) const volatile noexcept, false> : public basic_traits<true, false, T, R, Args...> { typedef R (T::*function_pointer_type)(Args...) const volatile noexcept; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args..., ...) const volatile noexcept, false> : public basic_traits<true, true, T, R, Args...> { typedef R (T::*function_pointer_type)(Args..., ...) const volatile noexcept; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args...)& noexcept, false> : public basic_traits<true, false, T, R, Args...> { typedef R (T::*function_pointer_type)(Args...) & noexcept; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args..., ...)& noexcept, false> : public basic_traits<true, true, T, R, Args...> { typedef R (T::*function_pointer_type)(Args..., ...) & noexcept; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args...) const& noexcept, false> : public basic_traits<true, false, T, R, Args...> { typedef R (T::*function_pointer_type)(Args...) const& noexcept; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args..., ...) const& noexcept, false> : public basic_traits<true, true, T, R, Args...> { typedef R (T::*function_pointer_type)(Args..., ...) const& noexcept; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args...) const volatile& noexcept, false> : public basic_traits<true, false, T, R, Args...> { typedef R (T::*function_pointer_type)(Args...) const volatile& noexcept; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args..., ...) const volatile& noexcept, false> : public basic_traits<true, true, T, R, Args...> { typedef R (T::*function_pointer_type)(Args..., ...) const volatile& noexcept; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args...)&& noexcept, false> : public basic_traits<true, false, T, R, Args...> { typedef R (T::*function_pointer_type)(Args...) && noexcept; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args..., ...)&& noexcept, false> : public basic_traits<true, true, T, R, Args...> { typedef R (T::*function_pointer_type)(Args..., ...) && noexcept; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args...) const&& noexcept, false> : public basic_traits<true, false, T, R, Args...> { typedef R (T::*function_pointer_type)(Args...) const&& noexcept; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args..., ...) const&& noexcept, false> : public basic_traits<true, true, T, R, Args...> { typedef R (T::*function_pointer_type)(Args..., ...) const&& noexcept; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args...) const volatile&& noexcept, false> : public basic_traits<true, false, T, R, Args...> { typedef R (T::*function_pointer_type)(Args...) const volatile&& noexcept; }; template <typename T, typename R, typename... Args> struct fx_traits<R (T::*)(Args..., ...) const volatile&& noexcept, false> : public basic_traits<true, true, T, R, Args...> { typedef R (T::*function_pointer_type)(Args..., ...) const volatile&& noexcept; }; #endif // noexcept is part of a function's type #if SOL_IS_ON(SOL_COMPILER_VCXX_I_) && SOL_IS_ON(SOL_PLATFORM_X86_I_) template <typename R, typename... Args> struct fx_traits<R __stdcall(Args...), false> : public basic_traits<false, false, void, R, Args...> { typedef R(__stdcall* function_pointer_type)(Args...); }; template <typename R, typename... Args> struct fx_traits<R(__stdcall*)(Args...), false> : public basic_traits<false, false, void, R, Args...> { typedef R(__stdcall* function_pointer_type)(Args...); }; template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args...), false> : public basic_traits<false, false, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args...); }; /* Const Volatile */ template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args...) const, false> : public basic_traits<false, false, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args...) const; }; template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args...) const volatile, false> : public basic_traits<false, false, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args...) const volatile; }; /* Member Function Qualifiers */ template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args...)&, false> : public basic_traits<false, false, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args...) &; }; template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args...) const&, false> : public basic_traits<false, false, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args...) const&; }; template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args...) const volatile&, false> : public basic_traits<false, false, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args...) const volatile&; }; template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args...)&&, false> : public basic_traits<false, false, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args...) &&; }; template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args...) const&&, false> : public basic_traits<false, false, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args...) const&&; }; template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args...) const volatile&&, false> : public basic_traits<false, false, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args...) const volatile&&; }; #if SOL_IS_ON(SOL_USE_NOEXCEPT_FUNCTION_TYPE_I_) template <typename R, typename... Args> struct fx_traits<R __stdcall(Args...) noexcept, false> : public basic_traits<true, false, void, R, Args...> { typedef R(__stdcall* function_pointer_type)(Args...) noexcept; }; template <typename R, typename... Args> struct fx_traits<R(__stdcall*)(Args...) noexcept, false> : public basic_traits<true, false, void, R, Args...> { typedef R(__stdcall* function_pointer_type)(Args...) noexcept; }; /* __stdcall cannot be applied to functions with varargs*/ /*template <typename R, typename... Args> struct fx_traits<__stdcall R(Args..., ...) noexcept, false> : public basic_traits<true, true, void, R, Args...> { typedef R(__stdcall* function_pointer_type)(Args..., ...) noexcept; }; template <typename R, typename... Args> struct fx_traits<R (__stdcall *)(Args..., ...) noexcept, false> : public basic_traits<true, true, void, R, Args...> { typedef R(__stdcall* function_pointer_type)(Args..., ...) noexcept; };*/ template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args...) noexcept, false> : public basic_traits<true, false, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args...) noexcept; }; /* __stdcall does not work with varargs */ /*template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args..., ...) noexcept, false> : public basic_traits<true, true, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args..., ...) noexcept; };*/ /* Const Volatile */ template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args...) const noexcept, false> : public basic_traits<true, false, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args...) const noexcept; }; /* __stdcall does not work with varargs */ /*template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args..., ...) const noexcept, false> : public basic_traits<true, true, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args..., ...) const noexcept; };*/ template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args...) const volatile noexcept, false> : public basic_traits<true, false, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args...) const volatile noexcept; }; /* __stdcall does not work with varargs */ /*template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args..., ...) const volatile noexcept, false> : public basic_traits<true, true, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args..., ...) const volatile noexcept; };*/ template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args...)& noexcept, false> : public basic_traits<true, false, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args...) & noexcept; }; /* __stdcall does not work with varargs */ /*template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args..., ...) & noexcept, false> : public basic_traits<true, true, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args..., ...) & noexcept; };*/ template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args...) const& noexcept, false> : public basic_traits<true, false, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args...) const& noexcept; }; /* __stdcall does not work with varargs */ /*template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args..., ...) const& noexcept, false> : public basic_traits<true, true, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args..., ...) const& noexcept; };*/ template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args...) const volatile& noexcept, false> : public basic_traits<true, false, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args...) const volatile& noexcept; }; /* __stdcall does not work with varargs */ /*template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args..., ...) const volatile& noexcept, false> : public basic_traits<true, true, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args..., ...) const volatile& noexcept; };*/ template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args...)&& noexcept, false> : public basic_traits<true, false, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args...) && noexcept; }; /* __stdcall does not work with varargs */ /*template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args..., ...) && noexcept, false> : public basic_traits<true, true, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args..., ...) && noexcept; };*/ template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args...) const&& noexcept, false> : public basic_traits<true, false, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args...) const&& noexcept; }; /* __stdcall does not work with varargs */ /*template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args..., ...) const&& noexcept, false> : public basic_traits<true, true, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args..., ...) const&& noexcept; };*/ template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args...) const volatile&& noexcept, false> : public basic_traits<true, false, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args...) const volatile&& noexcept; }; /* __stdcall does not work with varargs */ /*template <typename T, typename R, typename... Args> struct fx_traits<R (__stdcall T::*)(Args..., ...) const volatile&& noexcept, false> : public basic_traits<true, true, T, R, Args...> { typedef R (__stdcall T::*function_pointer_type)(Args..., ...) const volatile&& noexcept; };*/ #endif // noexcept is part of a function's type #endif // __stdcall x86 VC++ bug template <typename Signature> struct fx_traits<Signature, true> : public fx_traits<typename fx_traits<decltype(&Signature::operator())>::function_type, false> { }; template <typename Signature, bool b = std::is_member_object_pointer<Signature>::value> struct callable_traits : public fx_traits<std::decay_t<Signature>> { }; template <typename R, typename T> struct callable_traits<R(T::*), true> { typedef meta::conditional_t<std::is_array_v<R>, std::add_lvalue_reference_t<R>, R> return_type; typedef return_type Arg; typedef T object_type; using signature_type = R(T::*); inline static constexpr bool is_noexcept = false; inline static constexpr bool is_member_function = false; inline static constexpr std::size_t arity = 1; inline static constexpr std::size_t free_arity = 2; typedef std::tuple<Arg> args_tuple; typedef types<Arg> args_list; typedef types<T, Arg> free_args_list; typedef meta::tuple_types<return_type> returns_list; typedef return_type(function_type)(T&, return_type); typedef return_type (*function_pointer_type)(T&, Arg); typedef return_type (*free_function_pointer_type)(T&, Arg); template <std::size_t i> using arg_at = void_tuple_element_t<i, args_tuple>; }; } // namespace meta_detail template <typename Signature> using bind_traits = meta_detail::callable_traits<Signature>; namespace meta_detail { template <typename, bool> struct is_probably_stateless_lambda : std::false_type { }; template <typename T> struct is_probably_stateless_lambda<T, true> : std::is_convertible<T, typename bind_traits<T>::function_type*>::type { }; } // namespace meta_detail template <typename T> using is_probably_stateless_lambda = typename meta_detail::is_probably_stateless_lambda<T, std::is_empty_v<T> && call_operator_deducible_v<T>>::type; template <typename T> inline constexpr bool is_probably_stateless_lambda_v = is_probably_stateless_lambda<T>::value; template <typename Signature> using function_args_t = typename bind_traits<Signature>::args_list; template <typename Signature> using function_signature_t = typename bind_traits<Signature>::signature_type; template <typename Signature> using function_return_t = typename bind_traits<Signature>::return_type; }} // namespace sol::meta #endif // SOL_BIND_TRAITS_HPP