Update //third_party/protobuf to version 3.

third_party/protobuf/src/google/protobuf/compiler/javanano/javanano_file.cc

Index: third_party/protobuf/src/google/protobuf/compiler/javanano/javanano_file.cc
diff --git a/third_party/protobuf/src/google/protobuf/compiler/javanano/javanano_file.cc b/third_party/protobuf/src/google/protobuf/compiler/javanano/javanano_file.cc
new file mode 100644
index 0000000000000000000000000000000000000000..3676ab9d19655903db2319053e52d8efb4745e3c
--- /dev/null
+++ b/third_party/protobuf/src/google/protobuf/compiler/javanano/javanano_file.cc
@@ -0,0 +1,263 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+// http://code.google.com/p/protobuf/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Author: kenton@google.com (Kenton Varda)
+//  Based on original Protocol Buffers design by
+//  Sanjay Ghemawat, Jeff Dean, and others.
+
+#include <iostream>
+
+#include <google/protobuf/compiler/javanano/javanano_file.h>
+#include <google/protobuf/compiler/javanano/javanano_enum.h>
+#include <google/protobuf/compiler/javanano/javanano_extension.h>
+#include <google/protobuf/compiler/javanano/javanano_helpers.h>
+#include <google/protobuf/compiler/javanano/javanano_message.h>
+#include <google/protobuf/compiler/code_generator.h>
+#include <google/protobuf/io/printer.h>
+#include <google/protobuf/io/zero_copy_stream.h>
+#include <google/protobuf/descriptor.pb.h>
+#include <google/protobuf/stubs/strutil.h>
+
+namespace google {
+namespace protobuf {
+namespace compiler {
+namespace javanano {
+
+namespace {
+
+// Recursively searches the given message to see if it contains any extensions.
+bool UsesExtensions(const Message& message) {
+  const Reflection* reflection = message.GetReflection();
+
+  // We conservatively assume that unknown fields are extensions.
+  if (reflection->GetUnknownFields(message).field_count() > 0) return true;
+
+  vector<const FieldDescriptor*> fields;
+  reflection->ListFields(message, &fields);
+
+  for (int i = 0; i < fields.size(); i++) {
+    if (fields[i]->is_extension()) return true;
+
+    if (fields[i]->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE) {
+      if (fields[i]->is_repeated()) {
+        int size = reflection->FieldSize(message, fields[i]);
+        for (int j = 0; j < size; j++) {
+          const Message& sub_message =
+            reflection->GetRepeatedMessage(message, fields[i], j);
+          if (UsesExtensions(sub_message)) return true;
+        }
+      } else {
+        const Message& sub_message = reflection->GetMessage(message, fields[i]);
+        if (UsesExtensions(sub_message)) return true;
+      }
+    }
+  }
+
+  return false;
+}
+
+}  // namespace
+
+FileGenerator::FileGenerator(const FileDescriptor* file, const Params& params)
+  : file_(file),
+    params_(params),
+    java_package_(FileJavaPackage(params, file)),
+    classname_(FileClassName(params, file)) {}
+
+FileGenerator::~FileGenerator() {}
+
+bool FileGenerator::Validate(string* error) {
+  // Check for extensions
+  FileDescriptorProto file_proto;
+  file_->CopyTo(&file_proto);
+  if (UsesExtensions(file_proto) && !params_.store_unknown_fields()) {
+    error->assign(file_->name());
+    error->append(
+        ": Java NANO_RUNTIME only supports extensions when the "
+        "'store_unknown_fields' generator option is 'true'.");
+    return false;
+  }
+
+  if (file_->service_count() != 0 && !params_.ignore_services()) {
+    error->assign(file_->name());
+    error->append(
+      ": Java NANO_RUNTIME does not support services\"");
+    return false;
+  }
+
+  if (!IsOuterClassNeeded(params_, file_)) {
+    return true;
+  }
+
+  // Check whether legacy javanano generator would omit the outer class.
+  if (!params_.has_java_outer_classname(file_->name())
+      && file_->message_type_count() == 1
+      && file_->enum_type_count() == 0 && file_->extension_count() == 0) {
+    cout << "INFO: " << file_->name() << ":" << endl;
+    cout << "Javanano generator has changed to align with java generator. "
+        "An outer class will be created for this file and the single message "
+        "in the file will become a nested class. Use java_multiple_files to "
+        "skip generating the outer class, or set an explicit "
+        "java_outer_classname to suppress this message." << endl;
+  }
+
+  // Check that no class name matches the file's class name.  This is a common
+  // problem that leads to Java compile errors that can be hard to understand.
+  // It's especially bad when using the java_multiple_files, since we would
+  // end up overwriting the outer class with one of the inner ones.
+  bool found_conflict = false;
+  for (int i = 0; !found_conflict && i < file_->message_type_count(); i++) {
+    if (file_->message_type(i)->name() == classname_) {
+      found_conflict = true;
+    }
+  }
+  if (params_.java_enum_style()) {
+    for (int i = 0; !found_conflict && i < file_->enum_type_count(); i++) {
+      if (file_->enum_type(i)->name() == classname_) {
+        found_conflict = true;
+      }
+    }
+  }
+  if (found_conflict) {
+    error->assign(file_->name());
+    error->append(
+      ": Cannot generate Java output because the file's outer class name, \"");
+    error->append(classname_);
+    error->append(
+      "\", matches the name of one of the types declared inside it.  "
+      "Please either rename the type or use the java_outer_classname "
+      "option to specify a different outer class name for the .proto file.");
+    return false;
+  }
+  return true;
+}
+
+void FileGenerator::Generate(io::Printer* printer) {
+  // We don't import anything because we refer to all classes by their
+  // fully-qualified names in the generated source.
+  printer->Print(
+    "// Generated by the protocol buffer compiler.  DO NOT EDIT!\n");
+  if (!java_package_.empty()) {
+    printer->Print(
+      "\n"
+      "package $package$;\n",
+      "package", java_package_);
+  }
+
+  // Note: constants (from enums, emitted in the loop below) may have the same names as constants
+  // in the nested classes. This causes Java warnings, but is not fatal, so we suppress those
+  // warnings here in the top-most class declaration.
+  printer->Print(
+    "\n"
+    "@SuppressWarnings(\"hiding\")\n"
+    "public interface $classname$ {\n",
+    "classname", classname_);
+  printer->Indent();
+
+  // -----------------------------------------------------------------
+
+  // Extensions.
+  for (int i = 0; i < file_->extension_count(); i++) {
+    ExtensionGenerator(file_->extension(i), params_).Generate(printer);
+  }
+
+  // Enums.
+  for (int i = 0; i < file_->enum_type_count(); i++) {
+    EnumGenerator(file_->enum_type(i), params_).Generate(printer);
+  }
+
+  // Messages.
+  if (!params_.java_multiple_files(file_->name())) {
+    for (int i = 0; i < file_->message_type_count(); i++) {
+      MessageGenerator(file_->message_type(i), params_).Generate(printer);
+    }
+  }
+
+  // Static variables.
+  for (int i = 0; i < file_->message_type_count(); i++) {
+    // TODO(kenton):  Reuse MessageGenerator objects?
+    MessageGenerator(file_->message_type(i), params_).GenerateStaticVariables(printer);
+  }
+
+  printer->Outdent();
+  printer->Print(
+    "}\n");
+}
+
+template<typename GeneratorClass, typename DescriptorClass>
+static void GenerateSibling(const string& package_dir,
+                            const string& java_package,
+                            const DescriptorClass* descriptor,
+                            GeneratorContext* output_directory,
+                            vector<string>* file_list,
+                            const Params& params) {
+  string filename = package_dir + descriptor->name() + ".java";
+  file_list->push_back(filename);
+
+  scoped_ptr<io::ZeroCopyOutputStream> output(
+    output_directory->Open(filename));
+  io::Printer printer(output.get(), '$');
+
+  printer.Print(
+    "// Generated by the protocol buffer compiler.  DO NOT EDIT!\n");
+  if (!java_package.empty()) {
+    printer.Print(
+      "\n"
+      "package $package$;\n",
+      "package", java_package);
+  }
+
+  GeneratorClass(descriptor, params).Generate(&printer);
+}
+
+void FileGenerator::GenerateSiblings(const string& package_dir,
+                                     GeneratorContext* output_directory,
+                                     vector<string>* file_list) {
+  if (params_.java_multiple_files(file_->name())) {
+    for (int i = 0; i < file_->message_type_count(); i++) {
+      GenerateSibling<MessageGenerator>(package_dir, java_package_,
+                                        file_->message_type(i),
+                                        output_directory, file_list, params_);
+    }
+
+    if (params_.java_enum_style()) {
+      for (int i = 0; i < file_->enum_type_count(); i++) {
+        GenerateSibling<EnumGenerator>(package_dir, java_package_,
+                                       file_->enum_type(i),
+                                       output_directory, file_list, params_);
+      }
+    }
+  }
+}
+
+}  // namespace javanano
+}  // namespace compiler
+}  // namespace protobuf
+}  // namespace google