Class binary_reader

lesson6-Segmentation/json.hpp:7695–10096

*/
template<typename BasicJsonType, typename InputAdapterType, typename SAX = json_sax_dom_parser<BasicJsonType>>
class binary_reader
{
    using number_integer_t = typename BasicJsonType::number_integer_t;
    using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
    using number_float_t = typename BasicJsonType::number_float_t;
    using string_t = typename BasicJsonType::string_t;
    using binary_t = typename BasicJsonType::binary_t;
    using json_sax_t = SAX;
    using char_type = typename InputAdapterType::char_type;
    using char_int_type = typename std::char_traits<char_type>::int_type;

  public:
    /*!
    @brief create a binary reader

    @param[in] adapter  input adapter to read from
    */
    explicit binary_reader(InputAdapterType&& adapter) : ia(std::move(adapter))
    {
        (void)detail::is_sax_static_asserts<SAX, BasicJsonType> {};
    }

    // make class move-only
    binary_reader(const binary_reader&) = delete;
    binary_reader(binary_reader&&) = default;
    binary_reader& operator=(const binary_reader&) = delete;
    binary_reader& operator=(binary_reader&&) = default;
    ~binary_reader() = default;

    /*!
    @param[in] format  the binary format to parse
    @param[in] sax_    a SAX event processor
    @param[in] strict  whether to expect the input to be consumed completed
    @param[in] tag_handler  how to treat CBOR tags

    @return
    */
    JSON_HEDLEY_NON_NULL(3)
    bool sax_parse(const input_format_t format,
                   json_sax_t* sax_,
                   const bool strict = true,
                   const cbor_tag_handler_t tag_handler = cbor_tag_handler_t::error)
    {
        sax = sax_;
        bool result = false;

        switch (format)
        {
            case input_format_t::bson:
                result = parse_bson_internal();
                break;

            case input_format_t::cbor:
                result = parse_cbor_internal(true, tag_handler);
                break;

            case input_format_t::msgpack:
                result = parse_msgpack_internal();