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69 lines
2.8 KiB
C++
69 lines
2.8 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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v2.0.0
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Copyright(c) 2015 - 2017 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_TRAIT_HPP_INCLUDED__
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#define CONTINUABLE_TRAIT_HPP_INCLUDED__
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#include <continuable/continuable-base.hpp>
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#include <continuable/continuable-promise-base.hpp>
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#include <continuable/continuable-api.hpp>
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#include <continuable/detail/hints.hpp>
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#include <continuable/detail/types.hpp>
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namespace cti {
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/// Trait to retrieve a continuable_base type with a given type-erasure backend.
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///
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/// Every object may me used as type-erasure backend as long as the
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/// requirements of a `std::function` like wrapper are satisfied.
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///
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/// \tparam CallbackWrapper The type which is used to erase the callback.
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///
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/// \tparam ContinuationWrapper The type which is used to erase the
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/// continuation data.
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///
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/// \tparam Args The current signature of the continuable.
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template <template <typename...> class CallbackWrapper,
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template <typename...> class ContinuationWrapper, typename... Args>
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struct continuable_trait {
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/// The promise type which is used to resolve continuations
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using promise = promise_base<
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CallbackWrapper<void(Args...)&&, void(detail::types::dispatch_error_tag,
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detail::types::error_type) &&>,
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detail::hints::signature_hint_tag<Args...>>;
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/// The continuable type for the given parameters.
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using continuable =
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continuable_base<ContinuationWrapper<void(promise)>,
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detail::hints::signature_hint_tag<Args...>>;
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};
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} // namespace cti
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#endif // CONTINUABLE_TRAIT_HPP_INCLUDED__
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