immediate_executor.hpp

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/*
    Copyright 2015 Adobe
    Distributed under the Boost Software License, Version 1.0.
    (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*/
 
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#ifndef STLAB_CONCURRENCY_IMMEDIATE_EXECUTOR_HPP
#define STLAB_CONCURRENCY_IMMEDIATE_EXECUTOR_HPP

 
#include <stlab/execution/config.hpp>
 
#include <type_traits>
#include <utility>
 
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namespace stlab {
STLAB_EXECUTION_VERSION_NAMESPACE_BEGIN()
 

 
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namespace execution_detail {
 
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struct immediate_executor_type {
    template <typename F>
    auto operator()(F&& f) const -> std::enable_if_t<std::is_nothrow_invocable_v<F>> {
        std::forward<F>(f)();
    }
};
 
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} // namespace execution_detail
 
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inline constexpr auto immediate_executor = execution_detail::immediate_executor_type{};
 
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STLAB_EXECUTION_VERSION_NAMESPACE_END()
} // namespace stlab
 
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#endif
 
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