mirror of
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66 lines
2.4 KiB
C++
66 lines
2.4 KiB
C++
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/*
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/~` _ _ _|_. _ _ |_ | _
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\_,(_)| | | || ||_|(_||_)|(/_
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https://github.com/Naios/continuable
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v4.0.0
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Copyright(c) 2015 - 2019 Denis Blank <denis.blank at outlook dot com>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files(the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions :
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The above copyright notice and this permission notice shall be included in
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all 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,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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**/
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#ifndef CONTINUABLE_DETAIL_ANNOTATION_HPP_INCLUDED
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#define CONTINUABLE_DETAIL_ANNOTATION_HPP_INCLUDED
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#include <type_traits>
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#include <continuable/detail/core/types.hpp>
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#include <continuable/detail/utility/traits.hpp>
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namespace cti {
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namespace detail {
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template <typename Annotation>
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struct annotation_trait;
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/// Specialization for a present signature hint
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template <typename... Args>
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struct annotation_trait<identity<Args...>> {
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template <typename Continuable>
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static Continuable&& finish(Continuable&& continuable) {
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return std::forward<Continuable>(continuable);
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}
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};
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namespace hints {
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/// Extracts the signature we pass to the internal continuable
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/// from an argument pack as specified by make_continuable.
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///
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/// This is the overload taking an arbitrary amount of args
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template <typename... HintArgs>
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struct from_args : std::common_type<identity<HintArgs...>> {};
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template <>
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struct from_args<void> : std::common_type<identity<>> {};
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} // namespace hints
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} // namespace detail
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} // namespace cti
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#endif // CONTINUABLE_DETAIL_ANNOTATION_HPP_INCLUDED
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