I think the easiest solution would be to include the .proto file that
defines the custom option in the serialized descriptor set. I assume you're
generating the .desc file by invoking protoc with -o or
--descriptor_set_out, so just make sure to add the custom option .proto
file as one of the command line arguments to protoc when you do that.
On Tue, Feb 9, 2021 at 5:39 AM Marc Schafer <space...@plunk.org> wrote:
> Parsing fails on a .desc file generated from a message with a custom
> option as shown below. I understand this is happening because the message
> defined in descriptor.proto doesn't know about my extension but I am not
> sure how to fix it. I'm using C++.
>
> Here is my .proto:
> syntax = "proto3";
> package foo;
>
> // extending MessageOptions prevents parsing of generated .desc
> import "google/protobuf/descriptor.proto";
>
> // extensions start at 1000
> extend google.protobuf.MessageOptions {
> optional string my_option = 1992;
> }
>
>
> message SearchRequest {
> option (my_option) = "custom";
> string query = 1;
> int32 page_number = 2;
> int32 result_per_page = 3;
> }
>
> -Best
> Marc
>
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