Class binary_writer

dependencies/json/json.hpp:12826–14392

*/
template<typename BasicJsonType, typename CharType>
class binary_writer
{
    using string_t = typename BasicJsonType::string_t;
    using binary_t = typename BasicJsonType::binary_t;
    using number_float_t = typename BasicJsonType::number_float_t;

  public:
    /*!
    @brief create a binary writer

    @param[in] adapter  output adapter to write to
    */
    explicit binary_writer(output_adapter_t<CharType> adapter) : oa(adapter)
    {
        JSON_ASSERT(oa);
    }

    /*!
    @param[in] j  JSON value to serialize
    @pre       j.type() == value_t::object
    */
    void write_bson(const BasicJsonType& j)
    {
        switch (j.type())
        {
            case value_t::object:
            {
                write_bson_object(*j.m_value.object);
                break;
            }

            default:
            {
                JSON_THROW(type_error::create(317, "to serialize to BSON, top-level type must be object, but is " + std::string(j.type_name())));
            }
        }
    }

    /*!
    @param[in] j  JSON value to serialize
    */
    void write_cbor(const BasicJsonType& j)
    {
        switch (j.type())
        {
            case value_t::null:
            {
                oa->write_character(to_char_type(0xF6));
                break;
            }

            case value_t::boolean:
            {
                oa->write_character(j.m_value.boolean
                                    ? to_char_type(0xF5)
                                    : to_char_type(0xF4));
                break;
            }