deserializePayload method

@override int deserializePayload(TrexOperationBuilder builder, ByteData byteData, Endian endianness, int offset,)

Call to deserialize only the payload, no header. The Builder is to allow passing the message to build into. returns a int with a serialized size

Implementation

@override
int deserializePayload(imc.TrexOperationBuilder builder, ByteData byteData,
    Endian endianness, int offset) {
  var byteOffset = offset;

  // field op
  builder.op = imc.TrexOperationEnumOp(byteData.getUint8(byteOffset));
  byteOffset += 1;
  // field goalId
  var goalIdSSize = byteData.getUint16(byteOffset, endianness);
  byteOffset += 2;
  var goalIdDData = List.filled(goalIdSSize, 0);
  for (var i = 0; i < goalIdSSize; i++) {
    goalIdDData[i] = byteData.getUint8(byteOffset++);
  }
  var goalIdDecoded = utf8.decode(goalIdDData);
  builder.goalId = goalIdDecoded;
  // field token
  var tokenSId = byteData.getUint16(byteOffset, endianness);
  byteOffset += 2;
  if (tokenSId == imc.ImcId.nullId) {
    builder.token = null;
  } else {
    var pMsgBuilder = imc.messagesBuilders[
            imc.idsToMessages[tokenSId] ?? imc.ImcId.nullId.toString()]
        ?.call()
        .newInstance(builder);
    var pMsgSerializer = imc.messagesSerializers[
            imc.idsToMessages[tokenSId] ?? imc.ImcId.nullId.toString()]
        ?.call();
    if (pMsgBuilder != null && pMsgSerializer != null) {
      var mPSize = pMsgSerializer.deserializePayload(
          pMsgBuilder, byteData, endianness, byteOffset);
      byteOffset += mPSize;
      builder.token = pMsgBuilder.build() as imc.TrexToken?;
    }
  }

  return byteOffset - offset;
}