Class callbacks_t

test/tuple_aggregate.cpp:165–176

};

struct callbacks_t
{
    void operator()(s0_rule_tag, s0 s) const { s0s.push_back(std::move(s)); }
    void operator()(s1_rule_a_tag, s1 s) const { s1s.push_back(std::move(s)); }
    void operator()(s1_rule_b_tag, s1 s) const { s1s.push_back(std::move(s)); }
    void operator()(s2_rule_a_tag, s2 s) const { s2s.push_back(std::move(s)); }
    void operator()(s2_rule_b_tag, s2 s) const { s2s.push_back(std::move(s)); }

    mutable std::vector<s0> s0s;
    mutable std::vector<s1> s1s;
    mutable std::vector<s2> s2s;
};

int main()
{