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/******************************************************************************
* ____ _ _____ *
* / ___| / \ | ___| C++ *
* | | / _ \ | |_ Actor *
* | |___ / ___ \| _| Framework *
* \____/_/ \_|_| *
* *
* Copyright 2011-2018 Dominik Charousset *
* *
* Distributed under the terms and conditions of the BSD 3-Clause License or *
* (at your option) under the terms and conditions of the Boost Software *
* License 1.0. See accompanying files LICENSE and LICENSE_ALTERNATIVE. *
* *
* If you did not receive a copy of the license files, see *
* http://opensource.org/licenses/BSD-3-Clause and *
* http://www.boost.org/LICENSE_1_0.txt. *
******************************************************************************/
#pragma once
#include <type_traits>
#include "caf/meta/annotation.hpp"
namespace caf {
namespace meta {
template <class F>
struct save_callback_t : annotation {
save_callback_t(F&& f) : fun(f) {
// nop
}
save_callback_t(save_callback_t&&) = default;
save_callback_t(const save_callback_t&) = default;
F fun;
};
template <class T>
struct is_save_callback : std::false_type {};
template <class F>
struct is_save_callback<save_callback_t<F>> : std::true_type {};
/// Returns an annotation that allows inspectors to call
/// user-defined code after performing save operations.
template <class F>
save_callback_t<F> save_callback(F fun) {
return {std::move(fun)};
}
} // namespace meta
} // namespace caf
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