The only public target here is the edition defaults helper macro, which can be used by external runtimes and plugins. None of this code is C++-specific though, and should be organized higher up. Appropriate aliases are also placed at the top level for public targets
PiperOrigin-RevId: 625392504
Extension registration now happens in two phases, where we register all linked in messages first and any dynamic message afterwards.
This guarantees that we register all extensions that will be used by descriptor parsing before we parse any descriptors.
This is currently disabled by default.
PiperOrigin-RevId: 616840653
TDP replaced most of the class' use. MapFieldLite does not need it anymore.
We can also simplify MapFieldLite by removing some now unused template parameters.
PiperOrigin-RevId: 557599609
Every language has very different handling of utf8 validation. Any with proto2/proto3 differences will receive language-specific features for edition zero to better model these subtle differences.
PiperOrigin-RevId: 557258923
This represents the future direction of protobuf, replacing proto2/proto3 syntax with editions. These will enable more incremental evolution of protobuf APIs through features, which are individual behaviors (such as whether field presence is explicit or implicit). For more details see https://protobuf.dev/editions/overview/.
This PR contains a working implementation of editions for the protoc frontend and C++ code generation, along with various infrastructure improvements to support it. It gives early access for anyone who wants to a preview of editions, but has no effect on proto2/proto3 syntax. It is flag-guarded behind the `--experimental_editions` flag, and is an experimental feature with no guarantees.
PiperOrigin-RevId: 544805690
Mike Kruskal
Protobuf Team Bot
Ilya Tokar
Cong Liu
Sandy Zhang