default custom option value in google-protobuf runtime

[yaotusa]

Due to our limited support resources, feature requests will generally not be accepted, except for those referring to build or tooling integration. 1、I declear one proto 3 file as follows syntax = "proto3";

import "google/protobuf/descriptor.proto";

extend google.protobuf.MessageOptions { optional string my_option = 51234; }

message Ext { option (my_option) = "Hello world!"; }

2、And then I compile it, and use js in google-protobuf runtime

import { Ext, myOption } from './ext_pb' const ext = new Ext()

3、 And then, if I execute the following code

console.log(ext.getExtension(myOption))

I think it would output "Hello world!", but it ouput "undefined", why this happen;

4、If I execute the following code ext.setExtension(myOption, 'se') console.log(ext.getExtension(myOption)) It would output 'se' as expected;