static public int AppendExtensionData(IntPtr l) { try { ProtoBuf.ProtoReader self = (ProtoBuf.ProtoReader)checkSelf(l); ProtoBuf.IExtensible a1; checkType(l, 2, out a1); self.AppendExtensionData(a1); pushValue(l, true); return(1); } catch (Exception e) { return(error(l, e)); } }