reflect/protoregistry: add Types registry

The first commit of protoregistry only added a registry for files.
However, a separate type of registry is needed to provide a mapping between
protobuf names and actual Go types representing those names.

Additional high-level API:
    var GlobalTypes = new(Types)
    type Type interface{ ... }
    type Types struct{ ... }
        func NewTypes(...Type) *Types
        func (*Types) Register(...Type) error
        func (*Types) FindEnumByName(pref.FullName) (pref.EnumType, error)
        func (*Types) FindMessageByName(pref.FullName) (pref.MessageType, error)
        func (*Types) FindMessageByURL(string) (pref.MessageType, error)
        func (*Types) FindExtensionByName(pref.FullName) (pref.ExtensionType, error)
        func (*Types) FindExtensionByNumber(pref.FullName, pref.FieldNumber) (pref.ExtensionType, error)
        func (*Types) RangeEnums(func(pref.EnumType) bool)
        func (*Types) RangeMessages(func(pref.MessageType) bool)
        func (*Types) RangeExtensions(func(pref.ExtensionType) bool)
        func (*Types) RangeExtensionsByMessage(pref.FullName, func(pref.ExtensionType) bool)

Change-Id: I0d07705801684a1eb5853bcd05fcce12598a0047
Reviewed-on: https://go-review.googlesource.com/c/131345
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
5 files changed
tree: fd193af113f04ffb91b066c3ab76782e953ee2ba
  1. cmd/
  2. encoding/
  3. internal/
  4. proto/
  5. protogen/
  6. reflect/
  7. runtime/
  8. types/
  9. .gitignore
  10. .travis.yml
  11. AUTHORS
  12. CONTRIBUTING.md
  13. CONTRIBUTORS
  14. go.mod
  15. go.sum
  16. LICENSE
  17. PATENTS
  18. README.md
  19. regenerate.bash
  20. test.bash
README.md

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.

Design Documents

List of relevant design documents:

Contributing

We appreciate community contributions. See CONTRIBUTING.md.

Reporting Issues

Issues regarding the new API can be filed at github.com/golang/protobuf. Please use a APIv2: prefix in the title to make it clear that the issue is regarding the new API work.