How understand ExtensionDesc options and this value without convert to string?

[sshaplygin]

Hi, everyone

How understand field options type without convert to string?

Example part of code:

...
 rpc Encode (EncodeRequest) returns (EncodeResponse) {
        option (google.api.http) = {
            post: "/Encode"
            body: "option"
        };
    }
...

message EncodeRequest {
    string str = 1;
    Option option = 2 [(gogoproto.nullable) = false]; // <- this filed option
}

I realized in my code by call FieldDescriptorProto.GetOptions().String() and compare with const nullable string value. Do you have any ways understand to it?

[dsnet]

I apologize, but I don't understand what this is asking. Can you be more specific about what you trying to do?

Also, it seems like you're using gogoproto.nullable. Perhaps you should be asking this over at https://github.com/gogo/protobuf/issues?

[sshaplygin]

Can you be more specific about what you trying to do?

@dsnet, Yeap, sure.

In code I am used descriptor from protobuf/proton-gen-go.
Code parsed proto-file(example in upper) and by them generate swagger-file. I wanna get nullable option field, but I don’t know how compare different options between themself. May be you know best way to compare field options between themself than transform field option to string.

I hope, you can understand my problem))

[sshaplygin]

I find this interesting protosal - #555

i wanna get setted value from ExtensionDesc witch setted into proto-file. How to do it?

As equivalent from proposal example equals Enable GPS

[dsnet]

You have have an ExtensionDesc and want to retrieve the value for a field that the extension descriptor represents, you can use proto.GetExtension.

(FYI, we try to keep our issue tracker about actionable issues. Questions like this are best asked on Slack or someone other means where you can more readily get immediate help. Consider joining the #protobuf channel or the Gophers slack workspace: https://gophers.slack.com/?redir=%2Fmessages%2Fgeneral%2F)

[sshaplygin]

Thanks for you, @dsnet