reflect/prototype: avoid unescaping string defaults

According to google.protobuf.FieldDescriptorProto.default_value documentation:
>>>
For strings, contains the default text contents (not escaped in any way).
For bytes, contains the C escaped value.  All bytes >= 128 are escaped.
<<<

Thus, use the default value ad-verbatim if the kind is a string.
For the bytes kind, we use the text format hack to unescape the string,
since the text format uses the same unescape syntax as C due to its heritage.

Change-Id: I79e6d4d7e8f0d1ebedccecb9424a49384485589d
Reviewed-on: https://go-review.googlesource.com/138515
Reviewed-by: Damien Neil <dneil@google.com>
2 files changed
tree: 74ca1faf23208a0af6732e638c9d676181e91773
  1. cmd/
  2. internal/
  3. protogen/
  4. reflect/
  5. .gitignore
  6. .travis.yml
  7. AUTHORS
  8. CONTRIBUTING.md
  9. CONTRIBUTORS
  10. go.mod
  11. go.sum
  12. LICENSE
  13. PATENTS
  14. README.md
  15. regenerate.bash
  16. 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.