internal/impl: refactor validation a bit

Return the size of the field read from the validator, permitting us to
avoid an extra parse when skipping over groups.

Return an UnmarshalOutput from the validator, since it already combines
two of the validator outputs: bytes read and initialization status.

Remove initialization status from the ValidationStatus enum, since it's
covered by the UnmarshalOutput.

Change-Id: I3e684c45d15aa1992d8dc3bde0f608880d34a94b
Reviewed-by: Joe Tsai <>
6 files changed
tree: 8646ec4c32736042567200f509aea24ac44453f7
  1. .gitignore
  2. .travis.yml
  9. cmd/
  10. compiler/
  11. encoding/
  12. go.mod
  13. go.sum
  14. integration_test.go
  15. internal/
  16. proto/
  17. reflect/
  18. regenerate.bash
  19. release.bash
  20. runtime/
  21. test.bash
  22. testing/
  23. types/

Next Generation Go Protocol Buffers

WARNING: This repository is in active development. There are no guarantees about API stability. Breaking changes will occur until a stable release is made and announced.

This repository is for the development of the next major Go implementation of protocol buffers. This library makes breaking API changes relative to the existing Go protobuf library. Of particular note, this API aims to make protobuf reflection a first-class feature of the API and implements the protobuf ecosystem in terms of reflection.

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