Class callbacks_t

test/parser_rule.cpp:57–70

{};

struct callbacks_t
{
    void operator()(callback_vector_rule_tag, std::vector<char> && vec) const
    {
        all_results.push_back(std::move(vec));
    }
    void operator()(callback_void_rule_tag) const
    {
        void_callback_called = true;
    }

    mutable std::vector<std::vector<char>> all_results;
    mutable bool void_callback_called = false;
};

struct recursive_strings_rule_tag
{};