Class DataEncoder

src/encoder.hpp:59–98

class DataEncoder : public Encoder
{
public:
  DataEncoder(const std::string& _data)
    : data(_data), index(0) {}

  DataEncoder(std::string&& _data)
    : data(std::move(_data)), index(0) {}

  ~DataEncoder() override {}

  Kind kind() const override
  {
    return Encoder::DATA;
  }

  virtual const char* next(size_t* length)
  {
    size_t temp = index;
    index = data.size();
    *length = data.size() - temp;
    return data.data() + temp;
  }

  void backup(size_t length) override
  {
    if (index >= length) {
      index -= length;
    }
  }

  size_t remaining() const override
  {
    return data.size() - index;
  }

private:
  const std::string data;
  size_t index;
};


class MessageEncoder : public DataEncoder