void SixLowPanHc1::Serialize()

in simulation/src/sixlowpan/model/sixlowpan-header.cc [183:272]
85 lines of code
19 McCabe index (conditional complexity)

void SixLowPanHc1::Serialize (Buffer::Iterator start) const
{
  Buffer::Iterator i = start;
  uint8_t encoding;
  encoding = m_srcCompression;
  encoding <<= 2;
  encoding |= m_dstCompression;
  encoding <<= 1;
  encoding |= m_tcflCompression;
  encoding <<= 2;
  encoding |= m_nextHeaderCompression;
  encoding <<= 1;
  encoding |= m_hc2HeaderPresent;

  i.WriteU8 (SixLowPanDispatch::LOWPAN_HC1);
  i.WriteU8 (encoding);
  i.WriteU8 (m_hopLimit);
  switch (m_srcCompression)
    {
    case HC1_PIII:
      for ( int j = 0; j < 8; j++ )
        {
          i.WriteU8 (m_srcPrefix[j]);
        }
      for ( int j = 0; j < 8; j++ )
        {
          i.WriteU8 (m_srcInterface[j]);
        }
      break;
    case HC1_PIIC:
      for ( int j = 0; j < 8; j++ )
        {
          i.WriteU8 (m_srcPrefix[j]);
        }
      break;
    case HC1_PCII:
      for ( int j = 0; j < 8; j++ )
        {
          i.WriteU8 (m_srcInterface[j]);
        }
      break;
    case HC1_PCIC:
      break;
    }
  switch (m_dstCompression)
    {
    case HC1_PIII:
      for ( int j = 0; j < 8; j++ )
        {
          i.WriteU8 (m_dstPrefix[j]);
        }
      for ( int j = 0; j < 8; j++ )
        {
          i.WriteU8 (m_dstInterface[j]);
        }
      break;
    case HC1_PIIC:
      for ( int j = 0; j < 8; j++ )
        {
          i.WriteU8 (m_dstPrefix[j]);
        }
      break;
    case HC1_PCII:
      for ( int j = 0; j < 8; j++ )
        {
          i.WriteU8 (m_dstInterface[j]);
        }
      break;
    case HC1_PCIC:
      break;
    }

  if ( m_tcflCompression == false )
    {
      i.WriteU8 (m_trafficClass);
      uint8_t temp[3];
      temp[0] = uint8_t (m_flowLabel & 0xff);
      temp[1] = uint8_t ((m_flowLabel >> 8) & 0xff);
      temp[2] = uint8_t ((m_flowLabel >> 16) & 0xff);
      i.Write (temp, 3);
    }

  if (m_nextHeaderCompression == HC1_NC )
    {
      i.WriteU8 (m_nextHeader);
    }

  // TODO: HC2 is not yet supported. Should be.
  NS_ASSERT_MSG ( m_hc2HeaderPresent != true, "Can not compress HC2, exiting. Very sorry." );
}