void internal_add_continuations()

in Source/Shared/arcana/threading/internal/internal_task.h [231:265]

• 30 lines of code
• 7 McCabe index (conditional complexity)

            void internal_add_continuations(gsl::span<continuation_payload> continuations)
            {
                if (m_completed)
                    throw std::runtime_error("already specified a continuation for the current task");

                assert(!continuations.empty() && "we shouldn't be calling this with an empty continuation set");

                if (auto vect = std::get_if<1>(&m_continuation))
                {
                    vect->insert(
                        vect->end(), std::make_move_iterator(continuations.begin()), std::make_move_iterator(continuations.end()));
                }
                else if (!std::get<0>(m_continuation) && continuations.size() == 1)
                {
                    std::get<0>(m_continuation) = std::move(continuations.at(0));
                }
                else
                {
                    // create a vector with the existing continuation (if there is one)
                    // then append the new ones.
                    if (std::get<0>(m_continuation))
                    {
                        m_continuation = std::vector<continuation_payload>{ std::move(std::get<0>(m_continuation)) };

                        std::get<1>(m_continuation).insert(
                            std::get<1>(m_continuation).end(),
                            std::make_move_iterator(continuations.begin()), std::make_move_iterator(continuations.end()));
                    }
                    else
                    {
                        m_continuation = std::vector<continuation_payload>(
                            std::make_move_iterator(continuations.begin()), std::make_move_iterator(continuations.end()));
                    }
                }
            }