WIP: c++
diff --git a/examples/MODULE.bazel b/examples/MODULE.bazel
index 5984bdd..221af6c 100644
--- a/examples/MODULE.bazel
+++ b/examples/MODULE.bazel
@@ -24,8 +24,8 @@
protoc = use_extension("@toolchains_protoc//protoc:extensions.bzl", "protoc")
protoc.toolchain(
google_protobuf = "com_google_protobuf",
- # Demonstrate overriding the default version
- version = "v28.0",
+ # NB: c++ codegen requires this version to exactly match the protobuf bazel_dep
+ version = "v29.3",
)
use_repo(protoc, "com_google_protobuf", "toolchains_protoc_hub")
diff --git a/examples/cc/BUILD.bazel b/examples/cc/BUILD.bazel
new file mode 100644
index 0000000..1d2bee9
--- /dev/null
+++ b/examples/cc/BUILD.bazel
@@ -0,0 +1,7 @@
+load("@rules_cc//cc:defs.bzl", "cc_binary")
+
+cc_binary(
+ name = "cc",
+ srcs = ["greeter_example.cc"],
+ deps = ["//proto:greeter_cc_proto"],
+)
diff --git a/examples/cc/greeter_example.cc b/examples/cc/greeter_example.cc
new file mode 100644
index 0000000..273934e
--- /dev/null
+++ b/examples/cc/greeter_example.cc
@@ -0,0 +1,93 @@
+#include <iostream>
+#include <fstream>
+#include <string>
+#include "greeter.pb.h"
+using namespace std;
+
+// This function fills in a Person message based on user input.
+void PromptForAddress(tutorial::Person* person) {
+ cout << "Enter person ID number: ";
+ int id;
+ cin >> id;
+ person->set_id(id);
+ cin.ignore(256, '\n');
+
+ cout << "Enter name: ";
+ getline(cin, *person->mutable_name());
+
+ cout << "Enter email address (blank for none): ";
+ string email;
+ getline(cin, email);
+ if (!email.empty()) {
+ person->set_email(email);
+ }
+
+ while (true) {
+ cout << "Enter a phone number (or leave blank to finish): ";
+ string number;
+ getline(cin, number);
+ if (number.empty()) {
+ break;
+ }
+
+ tutorial::Person::PhoneNumber* phone_number = person->add_phones();
+ phone_number->set_number(number);
+
+ cout << "Is this a mobile, home, or work phone? ";
+ string type;
+ getline(cin, type);
+ if (type == "mobile") {
+ phone_number->set_type(tutorial::Person::PHONE_TYPE_MOBILE);
+ } else if (type == "home") {
+ phone_number->set_type(tutorial::Person::PHONE_TYPE_HOME);
+ } else if (type == "work") {
+ phone_number->set_type(tutorial::Person::PHONE_TYPE_WORK);
+ } else {
+ cout << "Unknown phone type. Using default." << endl;
+ }
+ }
+}
+
+// Main function: Reads the entire address book from a file,
+// adds one person based on user input, then writes it back out to the same
+// file.
+int main(int argc, char* argv[]) {
+ // Verify that the version of the library that we linked against is
+ // compatible with the version of the headers we compiled against.
+ GOOGLE_PROTOBUF_VERIFY_VERSION;
+
+ if (argc != 2) {
+ cerr << "Usage: " << argv[0] << " ADDRESS_BOOK_FILE" << endl;
+ return -1;
+ }
+
+ tutorial::AddressBook address_book;
+
+ {
+ // Read the existing address book.
+ fstream input(argv[1], ios::in | ios::binary);
+ if (!input) {
+ cout << argv[1] << ": File not found. Creating a new file." << endl;
+ } else if (!address_book.ParseFromIstream(&input)) {
+ cerr << "Failed to parse address book." << endl;
+ return -1;
+ }
+ }
+
+ // Add an address.
+ PromptForAddress(address_book.add_people());
+
+ {
+ // Write the new address book back to disk.
+ fstream output(argv[1], ios::out | ios::trunc | ios::binary);
+ if (!address_book.SerializeToOstream(&output)) {
+ cerr << "Failed to write address book." << endl;
+ return -1;
+ }
+ }
+
+ // Optional: Delete all global objects allocated by libprotobuf.
+ google::protobuf::ShutdownProtobufLibrary();
+
+ return 0;
+}
diff --git a/examples/proto/BUILD.bazel b/examples/proto/BUILD.bazel
index 88c206c..a5a520c 100644
--- a/examples/proto/BUILD.bazel
+++ b/examples/proto/BUILD.bazel
@@ -2,6 +2,7 @@
load("@rules_go//proto:def.bzl", "go_proto_library")
load("@rules_proto//proto:defs.bzl", "proto_library")
load("@rules_rust_prost//:defs.bzl", "rust_prost_library")
+load("@protobuf//bazel:cc_proto_library.bzl", "cc_proto_library")
load("@protobuf//bazel:py_proto_library.bzl", "py_proto_library")
package(default_visibility = ["//visibility:public"])
@@ -12,6 +13,11 @@
deps = ["@com_google_protobuf//:any_proto"],
)
+cc_proto_library(
+ name = "greeter_cc_proto",
+ deps = [":greeter_proto"],
+)
+
py_proto_library(
name = "greeter_py_proto",
deps = [":greeter_proto"],
