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123 lines
4.2 KiB
C++
123 lines
4.2 KiB
C++
// sol2
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// The MIT License (MIT)
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// Copyright (c) 2013-2021 Rapptz, ThePhD and contributors
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// Permission is hereby granted, free of charge, to any person obtaining a copy of
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// this software and associated documentation files (the "Software"), to deal in
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// the Software without restriction, including without limitation the rights to
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// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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// the Software, and to permit persons to whom the Software is furnished to do so,
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// subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#ifndef SOL_BASE_TRAITS_HPP
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#define SOL_BASE_TRAITS_HPP
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#include <type_traits>
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namespace sol {
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namespace detail {
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struct unchecked_t { };
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const unchecked_t unchecked = unchecked_t {};
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} // namespace detail
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namespace meta {
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using sfinae_yes_t = std::true_type;
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using sfinae_no_t = std::false_type;
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template <typename...>
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using void_t = void;
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template <typename T>
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using unqualified = std::remove_cv<std::remove_reference_t<T>>;
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template <typename T>
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using unqualified_t = typename unqualified<T>::type;
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namespace meta_detail {
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template <typename T>
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struct unqualified_non_alias : unqualified<T> { };
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template <template <class...> class Test, class, class... Args>
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struct is_detected : std::false_type { };
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template <template <class...> class Test, class... Args>
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struct is_detected<Test, void_t<Test<Args...>>, Args...> : std::true_type { };
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} // namespace meta_detail
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template <template <class...> class Trait, class... Args>
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using is_detected = typename meta_detail::is_detected<Trait, void, Args...>::type;
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template <template <class...> class Trait, class... Args>
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constexpr inline bool is_detected_v = is_detected<Trait, Args...>::value;
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template <std::size_t I>
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using index_value = std::integral_constant<std::size_t, I>;
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template <bool>
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struct conditional {
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template <typename T, typename U>
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using type = T;
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};
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template <>
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struct conditional<false> {
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template <typename T, typename U>
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using type = U;
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};
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template <bool B, typename T, typename U>
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using conditional_t = typename conditional<B>::template type<T, U>;
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namespace meta_detail {
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template <typename T, template <typename...> class Templ>
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struct is_specialization_of : std::false_type { };
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template <typename... T, template <typename...> class Templ>
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struct is_specialization_of<Templ<T...>, Templ> : std::true_type { };
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} // namespace meta_detail
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template <typename T, template <typename...> class Templ>
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using is_specialization_of = meta_detail::is_specialization_of<std::remove_cv_t<T>, Templ>;
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template <typename T, template <typename...> class Templ>
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inline constexpr bool is_specialization_of_v = is_specialization_of<std::remove_cv_t<T>, Templ>::value;
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template <typename T>
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struct identity {
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typedef T type;
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};
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template <typename T>
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using identity_t = typename identity<T>::type;
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template <typename T>
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using is_builtin_type = std::integral_constant<bool, std::is_arithmetic<T>::value || std::is_pointer<T>::value || std::is_array<T>::value>;
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namespace meta_detail {
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template <typename T, typename = void>
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struct has_internal_marker_impl : std::false_type { };
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template <typename T>
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struct has_internal_marker_impl<T, void_t<typename T::SOL_INTERNAL_UNSPECIALIZED_MARKER_>> : std::true_type { };
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template <typename T>
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using has_internal_marker = has_internal_marker_impl<T>;
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template <typename T>
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constexpr inline bool has_internal_marker_v = has_internal_marker<T>::value;
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} // namespace meta_detail
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} // namespace meta
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} // namespace sol
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#endif // SOL_BASE_TRAITS_HPP
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