Update //third_party/protobuf to version 3.

third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_file.cc

Index: third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_file.cc
diff --git a/third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_file.cc b/third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_file.cc
new file mode 100644
index 0000000000000000000000000000000000000000..228c66f0b4b77162fa73d25570c0b95b35e81cb3
--- /dev/null
+++ b/third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_file.cc
@@ -0,0 +1,368 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// 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.
+
+#include <google/protobuf/compiler/objectivec/objectivec_file.h>
+#include <google/protobuf/compiler/objectivec/objectivec_enum.h>
+#include <google/protobuf/compiler/objectivec/objectivec_extension.h>
+#include <google/protobuf/compiler/objectivec/objectivec_message.h>
+#include <google/protobuf/compiler/code_generator.h>
+#include <google/protobuf/io/printer.h>
+#include <google/protobuf/io/zero_copy_stream_impl.h>
+#include <google/protobuf/stubs/stl_util.h>
+#include <google/protobuf/stubs/strutil.h>
+#include <sstream>
+
+namespace google {
+namespace protobuf {
+
+// This is also found in GPBBootstrap.h, and needs to be kept in sync.  It
+// is the version check done to ensure generated code works with the current
+// runtime being used.
+const int32 GOOGLE_PROTOBUF_OBJC_GEN_VERSION = 30000;
+
+namespace compiler {
+namespace objectivec {
+
+FileGenerator::FileGenerator(const FileDescriptor *file)
+    : file_(file),
+      root_class_name_(FileClassName(file)),
+      is_public_dep_(false) {
+  for (int i = 0; i < file_->enum_type_count(); i++) {
+    EnumGenerator *generator = new EnumGenerator(file_->enum_type(i));
+    enum_generators_.push_back(generator);
+  }
+  for (int i = 0; i < file_->message_type_count(); i++) {
+    MessageGenerator *generator =
+        new MessageGenerator(root_class_name_, file_->message_type(i));
+    message_generators_.push_back(generator);
+  }
+  for (int i = 0; i < file_->extension_count(); i++) {
+    ExtensionGenerator *generator =
+        new ExtensionGenerator(root_class_name_, file_->extension(i));
+    extension_generators_.push_back(generator);
+  }
+}
+
+FileGenerator::~FileGenerator() {
+  STLDeleteContainerPointers(dependency_generators_.begin(),
+                             dependency_generators_.end());
+  STLDeleteContainerPointers(enum_generators_.begin(), enum_generators_.end());
+  STLDeleteContainerPointers(message_generators_.begin(),
+                             message_generators_.end());
+  STLDeleteContainerPointers(extension_generators_.begin(),
+                             extension_generators_.end());
+}
+
+void FileGenerator::GenerateHeader(io::Printer *printer) {
+  printer->Print(
+      "// Generated by the protocol buffer compiler.  DO NOT EDIT!\n"
+      "// source: $filename$\n"
+      "\n",
+      "filename", file_->name());
+
+  printer->Print(
+      "#import \"GPBProtocolBuffers.h\"\n"
+      "\n");
+
+  // Add some verification that the generated code matches the source the
+  // code is being compiled with.
+  printer->Print(
+      "#if GOOGLE_PROTOBUF_OBJC_GEN_VERSION != $protoc_gen_objc_version$\n"
+      "#error This file was generated by a different version of protoc which is incompatible with your Protocol Buffer library sources.\n"
+      "#endif\n"
+      "\n",
+      "protoc_gen_objc_version",
+      SimpleItoa(GOOGLE_PROTOBUF_OBJC_GEN_VERSION));
+
+  const vector<FileGenerator *> &dependency_generators = DependencyGenerators();
+  for (vector<FileGenerator *>::const_iterator iter =
+           dependency_generators.begin();
+       iter != dependency_generators.end(); ++iter) {
+    if ((*iter)->IsPublicDependency()) {
+      printer->Print("#import \"$header$.pbobjc.h\"\n",
+                     "header", (*iter)->Path());
+    }
+  }
+
+  printer->Print(
+      "// @@protoc_insertion_point(imports)\n"
+      "\n"
+      "CF_EXTERN_C_BEGIN\n"
+      "\n");
+
+  set<string> fwd_decls;
+  for (vector<MessageGenerator *>::iterator iter = message_generators_.begin();
+       iter != message_generators_.end(); ++iter) {
+    (*iter)->DetermineForwardDeclarations(&fwd_decls);
+  }
+  for (set<string>::const_iterator i(fwd_decls.begin());
+       i != fwd_decls.end(); ++i) {
+    printer->Print("$value$;\n", "value", *i);
+  }
+  if (fwd_decls.begin() != fwd_decls.end()) {
+    printer->Print("\n");
+  }
+
+  printer->Print(
+      "NS_ASSUME_NONNULL_BEGIN\n"
+      "\n");
+
+  // need to write out all enums first
+  for (vector<EnumGenerator *>::iterator iter = enum_generators_.begin();
+       iter != enum_generators_.end(); ++iter) {
+    (*iter)->GenerateHeader(printer);
+  }
+
+  for (vector<MessageGenerator *>::iterator iter = message_generators_.begin();
+       iter != message_generators_.end(); ++iter) {
+    (*iter)->GenerateEnumHeader(printer);
+  }
+
+  // For extensions to chain together, the Root gets created even if there
+  // are no extensions.
+  printer->Print(
+      "#pragma mark - $root_class_name$\n"
+      "\n"
+      "@interface $root_class_name$ : GPBRootObject\n"
+      "\n"
+      "// The base class provides:\n"
+      "//   + (GPBExtensionRegistry *)extensionRegistry;\n"
+      "// which is an GPBExtensionRegistry that includes all the extensions defined by\n"
+      "// this file and all files that it depends on.\n"
+      "\n"
+      "@end\n"
+      "\n",
+      "root_class_name", root_class_name_);
+
+  if (extension_generators_.size() > 0) {
+    // The dynamic methods block is only needed if there are extensions.
+    printer->Print(
+        "@interface $root_class_name$ (DynamicMethods)\n",
+        "root_class_name", root_class_name_);
+
+    for (vector<ExtensionGenerator *>::iterator iter =
+             extension_generators_.begin();
+         iter != extension_generators_.end(); ++iter) {
+      (*iter)->GenerateMembersHeader(printer);
+    }
+
+    printer->Print("@end\n\n");
+  }  // extension_generators_.size() > 0
+
+  for (vector<MessageGenerator *>::iterator iter = message_generators_.begin();
+       iter != message_generators_.end(); ++iter) {
+    (*iter)->GenerateMessageHeader(printer);
+  }
+
+  printer->Print(
+      "NS_ASSUME_NONNULL_END\n"
+      "\n"
+      "CF_EXTERN_C_END\n"
+      "\n"
+      "// @@protoc_insertion_point(global_scope)\n");
+}
+
+void FileGenerator::GenerateSource(io::Printer *printer) {
+  printer->Print(
+      "// Generated by the protocol buffer compiler.  DO NOT EDIT!\n"
+      "// source: $filename$\n"
+      "\n",
+      "filename", file_->name());
+
+  string header_file = Path() + ".pbobjc.h";
+  printer->Print(
+      "#import \"GPBProtocolBuffers_RuntimeSupport.h\"\n"
+      "#import \"$header_file$\"\n",
+      "header_file", header_file);
+  const vector<FileGenerator *> &dependency_generators =
+      DependencyGenerators();
+  for (vector<FileGenerator *>::const_iterator iter =
+           dependency_generators.begin();
+       iter != dependency_generators.end(); ++iter) {
+    if (!(*iter)->IsPublicDependency()) {
+      printer->Print("#import \"$header$.pbobjc.h\"\n",
+                     "header", (*iter)->Path());
+    }
+  }
+  printer->Print(
+      "// @@protoc_insertion_point(imports)\n"
+      "\n");
+
+  printer->Print(
+      "#pragma mark - $root_class_name$\n"
+      "\n"
+      "@implementation $root_class_name$\n\n",
+      "root_class_name", root_class_name_);
+
+  // Generate the extension initialization structures for the top level and
+  // any nested messages.
+  ostringstream extensions_stringstream;
+  if (file_->extension_count() + file_->message_type_count() > 0) {
+    io::OstreamOutputStream extensions_outputstream(&extensions_stringstream);
+    io::Printer extensions_printer(&extensions_outputstream, '$');
+    for (vector<ExtensionGenerator *>::iterator iter =
+             extension_generators_.begin();
+         iter != extension_generators_.end(); ++iter) {
+      (*iter)->GenerateStaticVariablesInitialization(&extensions_printer);
+    }
+    for (vector<MessageGenerator *>::iterator iter =
+             message_generators_.begin();
+         iter != message_generators_.end(); ++iter) {
+      (*iter)->GenerateStaticVariablesInitialization(&extensions_printer);
+    }
+    extensions_stringstream.flush();
+  }
+
+  // If there were any extensions or this file has any dependencies, output
+  // a registry to override to create the file specific registry.
+  const string& extensions_str = extensions_stringstream.str();
+  if (extensions_str.length() > 0 || file_->dependency_count() > 0) {
+    printer->Print(
+        "+ (GPBExtensionRegistry*)extensionRegistry {\n"
+        "  // This is called by +initialize so there is no need to worry\n"
+        "  // about thread safety and initialization of registry.\n"
+        "  static GPBExtensionRegistry* registry = nil;\n"
+        "  if (!registry) {\n"
+        "    GPBDebugCheckRuntimeVersion();\n"
+        "    registry = [[GPBExtensionRegistry alloc] init];\n");
+
+    printer->Indent();
+    printer->Indent();
+
+    if (extensions_str.length() > 0) {
+      printer->Print(
+          "static GPBExtensionDescription descriptions[] = {\n");
+      printer->Indent();
+      printer->Print(extensions_str.c_str());
+      printer->Outdent();
+      printer->Print(
+          "};\n"
+          "for (size_t i = 0; i < sizeof(descriptions) / sizeof(descriptions[0]); ++i) {\n"
+          "  GPBExtensionDescriptor *extension =\n"
+          "      [[GPBExtensionDescriptor alloc] initWithExtensionDescription:&descriptions[i]];\n"
+          "  [registry addExtension:extension];\n"
+          "  [self globallyRegisterExtension:extension];\n"
+          "  [extension release];\n"
+          "}\n");
+    }
+
+    const vector<FileGenerator *> &dependency_generators =
+        DependencyGenerators();
+    for (vector<FileGenerator *>::const_iterator iter =
+             dependency_generators.begin();
+         iter != dependency_generators.end(); ++iter) {
+      printer->Print(
+          "[registry addExtensions:[$dependency$ extensionRegistry]];\n",
+          "dependency", (*iter)->RootClassName());
+    }
+
+    printer->Outdent();
+    printer->Outdent();
+
+    printer->Print(
+        "  }\n"
+        "  return registry;\n"
+        "}\n"
+        "\n");
+  }
+
+  printer->Print("@end\n\n");
+
+  // File descriptor only needed if there are messages to use it.
+  if (message_generators_.size() > 0) {
+    string syntax;
+    switch (file_->syntax()) {
+      case FileDescriptor::SYNTAX_UNKNOWN:
+        syntax = "GPBFileSyntaxUnknown";
+        break;
+      case FileDescriptor::SYNTAX_PROTO2:
+        syntax = "GPBFileSyntaxProto2";
+        break;
+      case FileDescriptor::SYNTAX_PROTO3:
+        syntax = "GPBFileSyntaxProto3";
+        break;
+    }
+    printer->Print(
+        "#pragma mark - $root_class_name$_FileDescriptor\n"
+        "\n"
+        "static GPBFileDescriptor *$root_class_name$_FileDescriptor(void) {\n"
+        "  // This is called by +initialize so there is no need to worry\n"
+        "  // about thread safety of the singleton.\n"
+        "  static GPBFileDescriptor *descriptor = NULL;\n"
+        "  if (!descriptor) {\n"
+        "    GPBDebugCheckRuntimeVersion();\n"
+        "    descriptor = [[GPBFileDescriptor alloc] initWithPackage:@\"$package$\"\n"
+        "                                                     syntax:$syntax$];\n"
+        "  }\n"
+        "  return descriptor;\n"
+        "}\n"
+        "\n",
+        "root_class_name", root_class_name_,
+        "package", file_->package(),
+        "syntax", syntax);
+  }
+
+  for (vector<EnumGenerator *>::iterator iter = enum_generators_.begin();
+       iter != enum_generators_.end(); ++iter) {
+    (*iter)->GenerateSource(printer);
+  }
+  for (vector<MessageGenerator *>::iterator iter = message_generators_.begin();
+       iter != message_generators_.end(); ++iter) {
+    (*iter)->GenerateSource(printer);
+  }
+
+  printer->Print(
+    "\n"
+    "// @@protoc_insertion_point(global_scope)\n");
+}
+
+const string FileGenerator::Path() const { return FilePath(file_); }
+
+const vector<FileGenerator *> &FileGenerator::DependencyGenerators() {
+  if (file_->dependency_count() != dependency_generators_.size()) {
+    set<string> public_import_names;
+    for (int i = 0; i < file_->public_dependency_count(); i++) {
+      public_import_names.insert(file_->public_dependency(i)->name());
+    }
+    for (int i = 0; i < file_->dependency_count(); i++) {
+      FileGenerator *generator = new FileGenerator(file_->dependency(i));
+      const string& name = file_->dependency(i)->name();
+      bool public_import = (public_import_names.count(name) != 0);
+      generator->SetIsPublicDependency(public_import);
+      dependency_generators_.push_back(generator);
+    }
+  }
+  return dependency_generators_;
+}
+
+}  // namespace objectivec
+}  // namespace compiler
+}  // namespace protobuf
+}  // namespace google