Finally I have figured out whether a field has options or not.
Unfortunately every field in message is associated with FieldOptions. By
default, each field has DefaultOptions .So I could make pointer comparision
and say whether a field has Custom field options or not.
Final question remains: How do I know the attributes of FieldOptions.
On Friday, December 6, 2019 at 5:01:49 AM UTC+1, LakshmiKanth Gupta wrote:
>
> Yes.I am developing protoc plugin using c++.But I didn't find any function
> to do that. Could somebody help me with that. Also couldn't find the
> information of the options.
>
> I am using following code:
>
> FieldOptions l_options= m_record->field(i)->options();
>
> From here I couldn't figure out how I can look at these options.
>
>
>
>
> On Thursday, December 5, 2019 at 11:43:37 PM UTC+1, Adam Cozzette wrote:
>>
>> I assume your converter is set up as a protoc plugin? In that case you
>> can examine the descriptor for each field to see if it has a custom option
>> defined or not. The details depend on the language you are using, though.
>>
>> On Thu, Dec 5, 2019 at 12:26 PM LakshmiKanth Gupta <klkv...@gmail.com>
>> wrote:
>>
>>> Hi,
>>>
>>> Currently I am writing a convertor from proto format to ttcn3 format.
>>>
>>> Messages which I have defined has some custom Field options. How can I
>>> check whether a field has custom options or not.
>>>
>>>
>>> syntax="proto3";
>>> import "google/protobuf/descriptor.proto"
>>> extend google.protobuf.FieldOptions{
>>> bool presence=50001;
>>> }
>>>
>>> message Mymessage
>>> {
>>> int32 foo=1[(presence)=true];
>>> string bar=2;
>>> }
>>>
>>> This is my file. I would like to know when my convertor is invoked using
>>> protoc whether a field has options defined or not.
>>>
>>> Thanks in advance,
>>>
>>> with best regards,
>>> Gupta
>>>
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>>
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