get_completion_scheduler.h

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#pragma once
 
#include "di/execution/concepts/queryable.h"
#include "di/execution/concepts/scheduler.h"
#include "di/execution/query/forwarding_query.h"
#include "di/util/as_const.h"
 
namespace di::execution {
template<concepts::OneOf<SetValue, SetError, SetStopped> CPO>
struct GetCompletionScheduler : ForwardingQuery {
    template<concepts::Queryable T>
    requires(concepts::TagInvocable<GetCompletionScheduler, T const&>)
    constexpr auto operator()(T const& env) const -> concepts::Scheduler auto {
        return function::tag_invoke(*this, env);
    }
};
 
template<concepts::OneOf<SetValue, SetError, SetStopped> CPO>
constexpr inline auto get_completion_scheduler = GetCompletionScheduler<CPO> {};
}