encodeSelf method
Writes this object to the provided RawWriter.
Implementation
@override
void encodeSelf(RawWriter writer) {
final start = writer.length;
writer
..writeUint8(type)
..writeUint8(code)
..writeUint16(0)
..writeUint32(restOfHeader);
payload.encodeSelf(writer);
final checksum = Ip4Packet.calculateChecksum(
writer.bufferAsByteData,
start,
writer.length,
);
writer.bufferAsByteData.setUint16(start + 2, checksum);
}