func int64AsNumber(field *descriptor.FieldDescriptorProto) bool { var int64Encoding int64_encoding.Int64Encoding if field.Options != nil { extMap := field.GetOptions().ExtensionMap() if _, ok := extMap[50001]; ok { itf, err := proto.GetExtension(field.GetOptions(), int64_encoding.E_Jstype) if err == nil { int64Encoding = *itf.(*int64_encoding.Int64Encoding) } } } return int64Encoding == int64_encoding.Int64Encoding_JS_NUMBER }