Proto file format problem

[Chris]

There is a disagreement between the documentation at
http://code.google.com/apis/protocolbuffers/docs/proto.html#enum
and the behavior of proto.

The documentation states that
"Enumerator constants must be in the range [0, 2147483647]."

But the protoc program allows negative values.

I happened to write my Haskell version according the documentation, and
noticed this when the unittest.proto defined SPARSE constants there were
negative. My code rejected this as invalid.

Should the documentation be changed (and my Haskell code) or the protoc
program?

Thanks,
Chris

[Kenton Varda]

I think the documentation should be changed; I'll fix that.  However, negative enum values should probably be discouraged as they will always be encoded as 10 bytes on the wire.