/// <summary>
/// Creates new Protobuf_Field class instance by reading and decoding it from Protobuf_Streamer.
/// </summary>
/// <param name="streamer">Protobuf_Streamer for reading.</param>
public Protobuf_Field(Protobuf_Streamer streamer)
{
Int64 head = streamer.ReadVarint();
if (head == 0) // end of stream or read error
{
throw new Exception("End of underlaying stream of read error");
}
this.p_wt = (Protobuf.WireType)(head & 0x07);
this.p_fn = (ushort)(head >> 3);
this.p_data = null;
this.p_idata = 0;
switch (this.p_wt)
{
case Protobuf.WireType.Varint:
this.p_idata = streamer.ReadVarint();
break;
case Protobuf.WireType.Fixed64bit:
this.p_data = streamer.ReadBytes(8);
break;
case Protobuf.WireType.LengthDelimited:
int len = (int)(streamer.ReadVarint());
this.p_data = streamer.ReadBytes(len);
break;
/*case Protobuf.WireType_StartGroup: -- deprecated
* break;
* case Protobuf.WireType_EndGroup: -- deprecated
* break;*/
case Protobuf.WireType.Fixed32bit:
this.p_data = streamer.ReadBytes(4);
break;
default:
throw new Exception("Unknown protobuf wire type " + this.p_wt);
}
}
