Thanks Feng. It does look like the documentation is wrong then. I checked, and the "Reserved" section shows up when looking at the Language Guide for both proto2 and proto3.
On Wed, May 25, 2016 at 8:01 PM, Feng Xiao <[email protected]> wrote: > > > On Wed, May 25, 2016 at 5:49 PM, Marcos Juarez <[email protected]> wrote: > >> I just realized, there's a typo in my example. It should say: >> >> reserved 4, 108, 109; >> >> Note there's no comma after the reserved keyword. >> >> Also, I checked, and the protoc compiler I'm using reports itself as: >> *libprotoc >> 2.5.0* >> > The reserved keyword was added in v3.0.0-alpha-3: > https://github.com/google/protobuf/releases/tag/v3.0.0-alpha-3 > > You have to upgrade your protobuf version to use it. > > >> >> >> On Wed, May 25, 2016 at 3:44 PM, Marcos Juarez <[email protected]> wrote: >> >>> I ran into a situation today in which I needed to use the "reserved" >>> keyword in a protobuf definition, so that in the future, nobody would use >>> those fields. I've attached a screenshot of what the docs say, from >>> https://developers.google.com/protocol-buffers/docs/proto#reserved >>> >>> [image: Inline image 1] >>> >>> However, when I try to use that keyword in an actual message with field >>> definitions, protoc always complains with the following error: >>> >>> *Expected "required", "optional", or "repeated".* >>> >>> My protobuf definition looks like this: >>> >>> message MyMessage { >>> // Some comments >>> reserved, 4, 108, 109; >>> >>> // Some more comments >>> required string event_uuid = 1 ; >>> required string date = 2 ; >>> required string timezone = 3 ; >>> >>> optional string field1 = 101 ; >>> optional string field2 = 110 ; >>> } >>> >>> Am I reading that spec wrong, or is the reserved keyword broken? >>> >>> Marcos >>> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Protocol Buffers" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To post to this group, send email to [email protected]. >> Visit this group at https://groups.google.com/group/protobuf. >> For more options, visit https://groups.google.com/d/optout. >> > > -- You received this message because you are subscribed to the Google Groups "Protocol Buffers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/protobuf. For more options, visit https://groups.google.com/d/optout.
