protobuf/rust/test/cpp/interop/BUILD

# This package contains tests exercising C++/Rust interop in the cpp kernel.

load("@rules_rust//rust:defs.bzl", "rust_test")

cc_library(
    name = "test_utils",
    srcs = ["test_utils.cc"],
    deps = [
        "//third_party/absl/strings",
        "//rust/cpp_kernel:cpp_api",
        "//rust/test:unittest_cc_proto",
    ],
)

rust_test(
    name = "interop_test",
    srcs = ["main.rs"],
    deps = [
        ":test_utils",
        "//rust:protobuf_cpp",
        "//rust/test:unittest_cc_rust_proto",
    ],
)
Generate C++ thunks for Rust protos In this CL I'd like to call existing C++ Protobuf API from the V0 Rust API. Since parts of the C++ API are defined inline and using (obviously) C++ name mangling, we need to create a "thunks.cc" file that: 1) Generates code for C++ API function we use from Rust 2) Exposes these functions without any name mangling (meaning using `extern "C"`) In this CL we add Bazel logic to generate "thunks" file, compile it, and propagate its object to linking. We also add logic to protoc to generate this "thunks" file. The protoc logic is rather rudimentary still. I hope to focus on protoc code quality in my followup work on V0 Rust API using C++ kernel. PiperOrigin-RevId: 523479839 2 years ago			`# This package contains tests exercising C++/Rust interop in the cpp kernel.`

			`load("@rules_rust//rust:defs.bzl", "rust_test")`

			`cc_library(`
			`name = "test_utils",`
			`srcs = ["test_utils.cc"],`
			`deps = [`
Zhuzh up the C++/Rust interop test to demonstrate more uses. Taking over the work done by mcyoung@ PiperOrigin-RevId: 529063108 2 years ago			`"//third_party/absl/strings",`
Generate C++ thunks for Rust protos In this CL I'd like to call existing C++ Protobuf API from the V0 Rust API. Since parts of the C++ API are defined inline and using (obviously) C++ name mangling, we need to create a "thunks.cc" file that: 1) Generates code for C++ API function we use from Rust 2) Exposes these functions without any name mangling (meaning using `extern "C"`) In this CL we add Bazel logic to generate "thunks" file, compile it, and propagate its object to linking. We also add logic to protoc to generate this "thunks" file. The protoc logic is rather rudimentary still. I hope to focus on protoc code quality in my followup work on V0 Rust API using C++ kernel. PiperOrigin-RevId: 523479839 2 years ago			`"//rust/cpp_kernel:cpp_api",`
			`"//rust/test:unittest_cc_proto",`
			`],`
			`)`

			`rust_test(`
			`name = "interop_test",`
			`srcs = ["main.rs"],`
			`deps = [`
			`":test_utils",`
Automated rollback of commit fe7c4f94223ad2e6190102fbe3473ce3be19ec48. PiperOrigin-RevId: 538128679 2 years ago			`"//rust:protobuf_cpp",`
Generate C++ thunks for Rust protos In this CL I'd like to call existing C++ Protobuf API from the V0 Rust API. Since parts of the C++ API are defined inline and using (obviously) C++ name mangling, we need to create a "thunks.cc" file that: 1) Generates code for C++ API function we use from Rust 2) Exposes these functions without any name mangling (meaning using `extern "C"`) In this CL we add Bazel logic to generate "thunks" file, compile it, and propagate its object to linking. We also add logic to protoc to generate this "thunks" file. The protoc logic is rather rudimentary still. I hope to focus on protoc code quality in my followup work on V0 Rust API using C++ kernel. PiperOrigin-RevId: 523479839 2 years ago			`"//rust/test:unittest_cc_rust_proto",`
			`],`
			`)`