Go support for Google's protocol buffers
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Joe Tsai afd3633ce3 internal/impl: defer evaluation of weak reference until actual use
Suppose some init logic performs protobuf reflection.
If so, it will cause the table-driven logic for protobuf reflection
to be initialized. This is problematic for weak fields since we
can not be certain that all weak references have been registered
at this point in time. This is a fundamental issue with with weak
dependencies, since it means that we cannot enforce any ordering
constraints on the weak dependency unless we directly import the weakly
referenced package (which would defeat the point of weak imports).

Alleviate the problem by pushing evaluation of weak reference to
actual usage. This does not completely fix the problem,
but signifcantly reduces the probability of it being problematic.
In general, people should avoid interacting with weak fields at init time.

Change-Id: Iebaefddde8cf07b5cd7dee49b7015b05b5428618
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/188980
Reviewed-by: Damien Neil <dneil@google.com>
2019-08-05 21:38:46 +00:00
benchmarks benchmarks: move download_benchdata.bash into benchmarks/ dir 2019-07-09 22:36:27 +00:00
cmd cmd/protoc-gen-go: remove XXX_OneofWrappers 2019-08-05 21:08:32 +00:00
compiler/protogen compiler/protogen: use protoreflect.SourcePath 2019-07-15 18:21:33 +00:00
encoding cmd/protoc-gen-go: group generation of internal fields together 2019-08-05 20:58:04 +00:00
internal internal/impl: defer evaluation of weak reference until actual use 2019-08-05 21:38:46 +00:00
proto proto: remove dependency on github.com/golang/protobuf 2019-07-15 22:26:29 +00:00
reflect cmd/protoc-gen-go: group generation of internal fields together 2019-08-05 20:58:04 +00:00
runtime all: implement proto1 weak fields 2019-07-15 18:44:12 +00:00
testing/prototest all: implement proto1 weak fields 2019-07-15 18:44:12 +00:00
types cmd/protoc-gen-go: group generation of internal fields together 2019-08-05 20:58:04 +00:00
.gitignore integration_test.go: move Go cache 2019-07-12 00:35:42 +00:00
.travis.yml .travis.yml: configure for OSX 2019-03-13 18:04:08 +00:00
AUTHORS AUTHORS, CONTRIBUTORS, LICENSE, PATENTS: initial commit 2018-08-07 22:39:48 +00:00
CONTRIBUTING.md CONTRIBUTING.md: add pre-push hook instructions 2018-08-07 23:58:41 +00:00
CONTRIBUTORS AUTHORS, CONTRIBUTORS, LICENSE, PATENTS: initial commit 2018-08-07 22:39:48 +00:00
go.mod all: update to github.com/golang/protobuf@b9f5089f 2019-07-18 00:01:40 +00:00
go.sum all: update to github.com/golang/protobuf@b9f5089f 2019-07-18 00:01:40 +00:00
integration_test.go all: implement proto1 weak fields 2019-07-15 18:44:12 +00:00
LICENSE AUTHORS, CONTRIBUTORS, LICENSE, PATENTS: initial commit 2018-08-07 22:39:48 +00:00
PATENTS AUTHORS, CONTRIBUTORS, LICENSE, PATENTS: initial commit 2018-08-07 22:39:48 +00:00
README.md CONTRIBUTING.md: initial commit 2018-08-01 20:39:06 +00:00
regenerate.bash internal/cmd/generate-protos: generate test for testdata 2019-03-11 19:40:53 +00:00
test.bash internal/cmd/generate-protos: generate test for testdata 2019-03-11 19:40:53 +00:00

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.