If you need a field which is "an int32 value, or not set" you can use the
google.protobuf.Int32Value message type.
In proto file,Which field type I can use?
在 2015年7月17日星期五 UTC+8下午9:10:29，Jon Skeet写道：
>
> On Friday, 17 July 2015 02:34:21 UTC+1, Wu XIANG wrote:
>>
>>
>> Is it true that
On Friday, 17 July 2015 02:34:21 UTC+1, Wu XIANG wrote:
Is it true that has methods for optional fields in proto3 are removed
from generated message ?
For primitive types, yes.
If so, how can I decide if this field has been set or not ?
You can't. An int32 field that's been set to
