protobuf

Protocol Buffers - Google's data interchange format (grpc依赖) https://developers.google.com/protocol-buffers/

Adam Cozzette 9256d0705c Allow `rust_proto_library` aspect to handle targets with empty `srcs` There is an old convention that a `proto_library` target with empty `srcs` should re-export its dependencies. This is sometimes useful as a way of creating something like an alias target, except that it can point to multiple dependencies rather than just one. The `rust_proto_library` aspect currently cannot handle this pattern and will raise an error if it encounters a `proto_library` without `srcs`. This CL fixes that problem by updating the `RustProtoInfo` provider generated by the aspect to include a list of `DepVariantInfo` instead of just one. In the typical case the provider will have just one `DepVariantInfo`, but this gives us the ability to return more than one in the case where we're exporting all the dependencies of a `src`-less `proto_library`. One thing this CL specifically does not attempt to do is add support for a `rust_proto_library` directly wrapping a `proto_library` without `srcs`. The reason for that is that it appears difficult to do in a way that would respect the layering check. It's also not obvious that we would want to encourage this pattern anyway. It's still valuable to support `src`-less `proto_library` targets when they're somewhere else in the transitive dependencies. This way you can freely create a `rust_proto_library` without having to fix up all your transitive deps first. PiperOrigin-RevId: 687344284		2 months ago
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BUILD	Fix build errors in Protobuf Rust	2 years ago
child.proto	Shorten our license headers into an abbreviated form that references LICENSE instead of including it in full.	1 year ago
defs.bzl	Remove obsolete logic related to cc_proto_library	8 months ago
empty.cc	Shorten our license headers into an abbreviated form that references LICENSE instead of including it in full.	1 year ago
empty.rs	Shorten our license headers into an abbreviated form that references LICENSE instead of including it in full.	1 year ago
grandparent1.proto	Pass crate mapping from Bazel to protoc	11 months ago
grandparent2.proto	Pass crate mapping from Bazel to protoc	11 months ago
parent.proto	Shorten our license headers into an abbreviated form that references LICENSE instead of including it in full.	1 year ago
parent2.proto	Depend on all deps of a proto_library, not just the first	11 months ago
rust_proto_library_unit_test.bzl	Allow `rust_proto_library` aspect to handle targets with empty `srcs`	2 months ago
some_proto.proto	Shorten our license headers into an abbreviated form that references LICENSE instead of including it in full.	1 year ago