void SixLowPanIphc::Serialize()

in simulation/src/sixlowpan/model/sixlowpan-header.cc [977:1086]
101 lines of code
21 McCabe index (conditional complexity)

void SixLowPanIphc::Serialize (Buffer::Iterator start) const
{
  Buffer::Iterator i = start;

  i.WriteHtonU16 (m_baseFormat);

  if ( GetCid () )
    {
      i.WriteU8 (m_srcdstContextId);
    }
  // Traffic Class and Flow Label
  switch ( GetTf () )
    {
      uint8_t temp;
    case TF_FULL:
      temp = (m_ecn << 6) | m_dscp;
      i.WriteU8 (temp);
      temp = m_flowLabel >> 16;
      i.WriteU8 (temp);
      temp = (m_flowLabel >> 8) & 0xff;
      i.WriteU8 (temp);
      temp = m_flowLabel & 0xff;
      i.WriteU8 (temp);
      break;
    case TF_DSCP_ELIDED:
      temp = (m_ecn << 6) | (m_flowLabel >> 16 );
      i.WriteU8 (temp);
      temp = (m_flowLabel >> 8) & 0xff;
      i.WriteU8 (temp);
      temp = m_flowLabel & 0xff;
      i.WriteU8 (temp);
      break;
    case TF_FL_ELIDED:
      temp = (m_ecn << 6) | m_dscp;
      i.WriteU8 (temp);
      break;
    default:
      break;
    }
  // Next Header
  if ( GetNh () == false )
    {
      i.WriteU8 (m_nextHeader);
    }
  // Hop Limit
  if ( GetHlim () == HLIM_INLINE )
    {
      i.WriteU8 (m_hopLimit);
    }
  // Source Address
  switch (GetSam () )
    {
    case HC_INLINE:
      if ( GetSac () == false )
        {
          i.Write (m_srcInlinePart, 16);
        }
      break;
    case HC_COMPR_64:
      i.Write (m_srcInlinePart, 8);
      break;
    case HC_COMPR_16:
      i.Write (m_srcInlinePart, 2);
      break;
    case HC_COMPR_0:
    default:
      break;
    }
  // Destination Address
  if ( GetM () == false)
    {
      // unicast
      switch (GetDam () )
        {
        case HC_INLINE:
          i.Write (m_dstInlinePart, 16);
          break;
        case HC_COMPR_64:
          i.Write (m_dstInlinePart, 8);
          break;
        case HC_COMPR_16:
          i.Write (m_dstInlinePart, 2);
          break;
        case HC_COMPR_0:
        default:
          break;
        }
    }
  else
    {
      // multicast
      switch (GetDam () )
        {
        case HC_INLINE:
          i.Write (m_dstInlinePart, 16);
          break;
        case HC_COMPR_64:
          i.Write (m_dstInlinePart, 6);
          break;
        case HC_COMPR_16:
          i.Write (m_dstInlinePart, 4);
          break;
        case HC_COMPR_0:
          i.Write (m_dstInlinePart, 1);
          break;
       default:
          break;
        }
    }
}