Extensions will be kept in wire format over proto.Size and proto.Marshal.
This change is a significant performance optimization for jobs that read and
write Protobuf messages of the same type, but do not need to process extensions.
This change is based on work by Patrik Nyblom.
Note that the proto.Size semantics for lazy messages might be surprising;
see https://protobuf.dev/reference/go/size/ for details.
We have been running this change for about two weeks in Google,
all known breakages have already been addressed with CL 579995.
related to golang/protobuf#1609
Change-Id: I16be78d15304d775bb30e76356a1a61d61300b43
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/580015
Reviewed-by: Lasse Folger <lassefolger@google.com>
Auto-Submit: Michael Stapelberg <stapelberg@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
An Is prefix implies it returns a boolean.
A Check prefix better suggests that it could return an error.
Change-Id: I6ffcb32099a944c656c07654c294a0980efb2d0e
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/220338
Reviewed-by: Damien Neil <dneil@google.com>
