Automated rollback of commit 138b748.

PiperOrigin-RevId: 843860118

Author: karenwuz

src/google/protobuf/compiler/command_line_interface_unittest.cc

@@ -2631,7 +2631,8 @@ TEST_F(CommandLineInterfaceTest, JavaMultipleFilesEdition2024Invalid){
 Run("protocol_compiler --proto_path=$tmpdir "
 "foo.proto --test_out=$tmpdir --experimental_editions");
 ExpectErrorSubstring(
-"The `java_multiple_files` behavior is enabled by default");
+"google.protobuf.FileOptions.java_multiple_files has been removed in edition "
+"2024: This behavior is enabled by default");
 }
 
 
@@ -2645,7 +2646,8 @@ TEST_F(CommandLineInterfaceTest, JavaNestInFileClassFor){
 Run("protocol_compiler --proto_path=$tmpdir "
 "foo.proto --test_out=$tmpdir --experimental_editions");
 ExpectErrorSubstring(
-"The `java_multiple_files` behavior is enabled by default");
+"google.protobuf.FileOptions.java_multiple_files has been removed in edition "
+"2024: This behavior is enabled by default");
 }
 
 

src/google/protobuf/descriptor.cc

@@ -1611,8 +1611,9 @@ class DescriptorPool::DeferredValidation{
  }
 
 structLifetimesInfo{
-constFeatureSet* proto_features;
+constMessage* option_to_validate; // features or options to validate
 const Message* proto;
+bool is_feature;
  absl::string_view full_name;
  absl::string_view filename;
  };
@@ -1640,16 +1641,19 @@ class DescriptorPool::DeferredValidation{
 if (lifetimes_info_map_.empty()) returntrue;
 
 static absl::string_view feature_set_name = "google.protobuf.FeatureSet";
-const Descriptor* feature_set =
- pool_->FindMessageTypeByName(feature_set_name);
-
 bool has_errors = false;
 for (constauto& it : lifetimes_info_map_){
 const FileDescriptor* file = it.first;
 
 for (constauto& info : it.second){
+const Descriptor* feature_set_descriptor = nullptr;
+// TODO: Support custom options
+if (info.is_feature){
+ feature_set_descriptor =
+ pool_->FindMessageTypeByName(feature_set_name);
+ }
 auto results = FeatureResolver::ValidateFeatureLifetimes(
- file->edition(), *info.proto_features, feature_set);
+ file->edition(), *info.option_to_validate, feature_set_descriptor);
 for (constauto& error : results.errors){
  has_errors = true;
 if (error_collector_ == nullptr){
@@ -6227,6 +6231,11 @@ static void PlanAllocationSize(const FileDescriptorProto& proto,
  }
 }
 
+template <typename OptionT>
+boolIsDefaultInstance(const OptionT& opt){
+return &opt == &OptionT::default_instance();
+}
+
 const FileDescriptor* DescriptorBuilder::BuildFile(
 const FileDescriptorProto& proto){
 // Ensure the generated pool has been lazily initialized. This is most
@@ -6685,10 +6694,17 @@ FileDescriptor* DescriptorBuilder::BuildFileImpl(
 if (!had_errors_ && !pool_->lazily_build_dependencies_){
 internal::VisitDescriptors(
  *result, proto, [&](constauto& descriptor, constauto& desc_proto){
-if (descriptor.proto_features_ != &FeatureSet::default_instance()){
+if (!IsDefaultInstance(*descriptor.proto_features_)){
  deferred_validation_.ValidateFeatureLifetimes(
-GetFile(descriptor),{descriptor.proto_features_, &desc_proto,
-GetFullName(descriptor), proto.name()});
+GetFile(descriptor),
+{descriptor.proto_features_, &desc_proto, /*is_feature=*/true,
+GetFullName(descriptor), proto.name()});
+ }
+if (!IsDefaultInstance(*descriptor.options_)){
+ deferred_validation_.ValidateFeatureLifetimes(
+GetFile(descriptor),
+{descriptor.options_, &desc_proto,
+/*is_feature=*/false, GetFullName(descriptor), proto.name()});
  }
  });
  }
@@ -8394,13 +8410,6 @@ void DescriptorBuilder::ValidateOptions(const FileDescriptor* file,
  }
 
 if (file->edition() >= Edition::EDITION_2024){
-if (file->options().has_java_multiple_files()){
-AddError(file->name(), proto, DescriptorPool::ErrorCollector::OPTION_NAME,
-"The `java_multiple_files` behavior is enabled by default in "
-"editions 2024 and above. To disable it, you can set "
-"`features.(pb.java).nest_in_file_class = YES` on individual "
-"messages, enums, or services.");
- }
 if (file->weak_dependency_count() > 0){
 AddError("weak", proto, DescriptorPool::ErrorCollector::IMPORT,
 "weak imports are not allowed under edition 2024 and beyond.");

src/google/protobuf/descriptor_unittest.cc

@@ -12323,6 +12323,49 @@ TEST_F(FeaturesTest, RemovedFeature){
  "Custom feature removal error\n");
 }
 
+TEST_F(FeaturesTest, RemovedOption){
+ BuildDescriptorMessagesInTestPool();
+ BuildFileWithErrors(
+ R"pb(
+ name: "foo.proto"
+ syntax: "editions"
+ edition: EDITION_2024
+ options{java_multiple_files: true }
+ )pb",
+ "foo.proto: foo.proto: NAME: "
+ "google.protobuf.FileOptions.java_multiple_files has been removed in edition "
+ "2024: This behavior is enabled by default in "
+ "editions 2024 and above. To disable it, you can set "
+ "`features.(pb.java).nest_in_file_class = YES` on individual messages, "
+ "enums, or services.\n");
+}
+
+TEST_F(FeaturesTest, RemoveOptionAndFeature){
+ BuildDescriptorMessagesInTestPool();
+ BuildFileInTestPool(pb::TestFeatures::descriptor()->file());
+ BuildFileWithErrors(
+ R"pb(
+ name: "foo.proto"
+ syntax: "editions"
+ edition: EDITION_2024
+ dependency: "google/protobuf/unittest_features.proto"
+ options{
+ java_multiple_files: true
+ features{
+ [pb.test]{removed_feature: VALUE9 }
+ }
+ }
+ )pb",
+ "foo.proto: foo.proto: NAME: "
+ "pb.TestFeatures.removed_feature has been removed in edition 2024: "
+ "Custom feature removal error\n"
+ "foo.proto: foo.proto: NAME: google.protobuf.FileOptions.java_multiple_files has "
+ "been removed in edition 2024: This behavior is enabled by default in "
+ "editions 2024 and above. To disable it, you can set "
+ "`features.(pb.java).nest_in_file_class = YES` on individual messages, "
+ "enums, or services.\n");
+}
+
 TEST_F(FeaturesTest, RemovedFeatureDefault){
  BuildDescriptorMessagesInTestPool();
  BuildFileInTestPool(pb::TestFeatures::descriptor()->file());

src/google/protobuf/feature_resolver.cc

@@ -399,32 +399,40 @@ void ValidateSingleFeatureLifetimes(
 }
 
 voidValidateFeatureLifetimesImpl(Edition edition, const Message& message,
- FeatureResolver::ValidationResults& results){
+ FeatureResolver::ValidationResults& results,
+bool is_feature){
  std::vector<const FieldDescriptor*> fields;
  message.GetReflection()->ListFields(message, &fields);
 for (const FieldDescriptor* field : fields){
-// Recurse into message extension.
-if (field->is_extension() &&
- field->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE){
-ValidateFeatureLifetimesImpl(
- edition, message.GetReflection()->GetMessage(message, field),
- results);
-continue;
- }
-
-if (field->enum_type() != nullptr){
-int number = message.GetReflection()->GetEnumValue(message, field);
-auto value = field->enum_type()->FindValueByNumber(number);
-if (value == nullptr){
- results.errors.emplace_back(absl::StrCat(
-"Feature ", field->full_name(), " has no known value ", number));
+// TODO: Support repeated option enum values and custom options
+// feature support
+if (is_feature){
+// Recurse into message extension.
+if (field->is_extension() &&
+ field->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE){
+ValidateFeatureLifetimesImpl(
+ edition, message.GetReflection()->GetMessage(message, field),
+ results, is_feature);
 continue;
  }
-ValidateSingleFeatureLifetimes(edition, value->full_name(),
- value->options().feature_support(),
- results);
- }
 
+if (field->enum_type() != nullptr){
+int number = message.GetReflection()->GetEnumValue(message, field);
+auto value = field->enum_type()->FindValueByNumber(number);
+if (value == nullptr){
+ results.errors.emplace_back(absl::StrCat(
+"Feature ", field->full_name(), " has no known value ", number));
+continue;
+ }
+ValidateSingleFeatureLifetimes(edition, value->full_name(),
+ value->options().feature_support(),
+ results);
+ }
+ }
+// TODO: Support custom options
+if (field->is_extension()){
+continue;
+ }
 ValidateSingleFeatureLifetimes(edition, field->full_name(),
  field->options().feature_support(), results);
  }
@@ -558,30 +566,34 @@ absl::StatusOr<FeatureSet> FeatureResolver::MergeFeatures(
 }
 
 FeatureResolver::ValidationResults FeatureResolver::ValidateFeatureLifetimes(
- Edition edition, const FeatureSet& features,
-const Descriptor* pool_descriptor){
-const Message* pool_features = nullptr;
+ Edition edition, const Message& option, const Descriptor* pool_descriptor){
+const Message* pool_option = nullptr;
  DynamicMessageFactory factory;
- std::unique_ptr<Message> features_storage;
-if (pool_descriptor == nullptr){
-// The FeatureSet descriptor can be null if no custom extensions are defined
-// in any transitive dependency. In this case, we can just use the
-// generated pool for validation, since there wouldn't be any feature
-// extensions defined anyway.
- pool_features = &features;
- } else{
-// Move the features back to the current pool so that we can reflect on any
-// extensions.
- features_storage =
+ std::unique_ptr<Message> message_storage;
+bool is_feature =
+ option.GetDescriptor()->name() == FeatureSet::descriptor()->name();
+// TODO: Support custom options
+if (pool_descriptor != nullptr && is_feature){
+// Move the messages back to the current pool so that we can reflect on
+// any extensions.
+ message_storage =
 absl::WrapUnique(factory.GetPrototype(pool_descriptor)->New());
-// TODO: Remove this suppression.
- (void)features_storage->ParseFromString(features.SerializeAsString());
- pool_features = features_storage.get();
+// TODO: Remove this suppression
+ (void)message_storage->ParseFromString(option.SerializeAsString());
+ pool_option = message_storage.get();
+ } else{
+// The Message descriptor can be null if no custom extensions are
+// defined in any transitive dependency. In this case, we can just use
+// the generated pool for validation, since there wouldn't be any feature
+// extensions defined anyway.
+ pool_option = &option;
  }
-ABSL_CHECK(pool_features != nullptr);
+ABSL_CHECK(pool_option != nullptr);
 
  ValidationResults results;
-ValidateFeatureLifetimesImpl(edition, *pool_features, results);
+// Validate feature support
+ValidateFeatureLifetimesImpl(edition, *pool_option, results, is_feature);
+
 return results;
 }
 

src/google/protobuf/feature_resolver.h

@@ -70,7 +70,7 @@ class PROTOBUF_EXPORT FeatureResolver{
  std::vector<std::string> warnings;
  };
 static ValidationResults ValidateFeatureLifetimes(
- Edition edition, constFeatureSet& features,
+ Edition edition, constMessage& option,
 const Descriptor* pool_descriptor);
 
 private:
@@ -91,4 +91,3 @@ absl::StatusOr<FeatureSet> PROTOBUF_EXPORT GetEditionFeatureSetDefaults(
 #include"google/protobuf/port_undef.inc"
 
 #endif// GOOGLE_PROTOBUF_FEATURE_RESOLVER_H__
-