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authorWink Saville <wink@google.com>2010-05-27 16:25:37 -0700
committerWink Saville <wink@google.com>2010-05-27 16:25:37 -0700
commitfbaaef999ba563838ebd00874ed8a1c01fbf286d (patch)
tree24ff5c76344e90abc5b0fe6f07120ea0d2d011ee /src/google/protobuf/compiler/cpp/cpp_file.cc
parent79a4a60053f74ab71c7c3ec436d2f6caedc5be61 (diff)
downloadexternal_protobuf-fbaaef999ba563838ebd00874ed8a1c01fbf286d.zip
external_protobuf-fbaaef999ba563838ebd00874ed8a1c01fbf286d.tar.gz
external_protobuf-fbaaef999ba563838ebd00874ed8a1c01fbf286d.tar.bz2
Add protobuf 2.2.0a sources
This is the contents of protobuf-2.2.0a.tar.bz2 from http://code.google.com/p/protobuf/downloads/list and is the base code for the javamicro code generator. Change-Id: Ie9a0440a824d615086445b6636944484b3155afa
Diffstat (limited to 'src/google/protobuf/compiler/cpp/cpp_file.cc')
-rw-r--r--src/google/protobuf/compiler/cpp/cpp_file.cc577
1 files changed, 577 insertions, 0 deletions
diff --git a/src/google/protobuf/compiler/cpp/cpp_file.cc b/src/google/protobuf/compiler/cpp/cpp_file.cc
new file mode 100644
index 0000000..51859bb
--- /dev/null
+++ b/src/google/protobuf/compiler/cpp/cpp_file.cc
@@ -0,0 +1,577 @@
+// 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 <google/protobuf/compiler/cpp/cpp_file.h>
+#include <google/protobuf/compiler/cpp/cpp_enum.h>
+#include <google/protobuf/compiler/cpp/cpp_service.h>
+#include <google/protobuf/compiler/cpp/cpp_extension.h>
+#include <google/protobuf/compiler/cpp/cpp_helpers.h>
+#include <google/protobuf/compiler/cpp/cpp_message.h>
+#include <google/protobuf/io/printer.h>
+#include <google/protobuf/descriptor.pb.h>
+#include <google/protobuf/stubs/strutil.h>
+
+namespace google {
+namespace protobuf {
+namespace compiler {
+namespace cpp {
+
+// ===================================================================
+
+FileGenerator::FileGenerator(const FileDescriptor* file,
+ const string& dllexport_decl)
+ : file_(file),
+ message_generators_(
+ new scoped_ptr<MessageGenerator>[file->message_type_count()]),
+ enum_generators_(
+ new scoped_ptr<EnumGenerator>[file->enum_type_count()]),
+ service_generators_(
+ new scoped_ptr<ServiceGenerator>[file->service_count()]),
+ extension_generators_(
+ new scoped_ptr<ExtensionGenerator>[file->extension_count()]),
+ dllexport_decl_(dllexport_decl) {
+
+ for (int i = 0; i < file->message_type_count(); i++) {
+ message_generators_[i].reset(
+ new MessageGenerator(file->message_type(i), dllexport_decl));
+ }
+
+ for (int i = 0; i < file->enum_type_count(); i++) {
+ enum_generators_[i].reset(
+ new EnumGenerator(file->enum_type(i), dllexport_decl));
+ }
+
+ for (int i = 0; i < file->service_count(); i++) {
+ service_generators_[i].reset(
+ new ServiceGenerator(file->service(i), dllexport_decl));
+ }
+
+ for (int i = 0; i < file->extension_count(); i++) {
+ extension_generators_[i].reset(
+ new ExtensionGenerator(file->extension(i), dllexport_decl));
+ }
+
+ SplitStringUsing(file_->package(), ".", &package_parts_);
+}
+
+FileGenerator::~FileGenerator() {}
+
+void FileGenerator::GenerateHeader(io::Printer* printer) {
+ string filename_identifier = FilenameIdentifier(file_->name());
+
+ // Generate top of header.
+ printer->Print(
+ "// Generated by the protocol buffer compiler. DO NOT EDIT!\n"
+ "\n"
+ "#ifndef PROTOBUF_$filename_identifier$__INCLUDED\n"
+ "#define PROTOBUF_$filename_identifier$__INCLUDED\n"
+ "\n"
+ "#include <string>\n"
+ "\n",
+ "filename_identifier", filename_identifier);
+
+ printer->Print(
+ "#include <google/protobuf/stubs/common.h>\n"
+ "\n");
+
+ // Verify the protobuf library header version is compatible with the protoc
+ // version before going any further.
+ printer->Print(
+ "#if GOOGLE_PROTOBUF_VERSION < $min_header_version$\n"
+ "#error This file was generated by a newer version of protoc which is\n"
+ "#error incompatible with your Protocol Buffer headers. Please update\n"
+ "#error your headers.\n"
+ "#endif\n"
+ "#if $protoc_version$ < GOOGLE_PROTOBUF_MIN_PROTOC_VERSION\n"
+ "#error This file was generated by an older version of protoc which is\n"
+ "#error incompatible with your Protocol Buffer headers. Please\n"
+ "#error regenerate this file with a newer version of protoc.\n"
+ "#endif\n"
+ "\n",
+ "min_header_version",
+ SimpleItoa(protobuf::internal::kMinHeaderVersionForProtoc),
+ "protoc_version", SimpleItoa(GOOGLE_PROTOBUF_VERSION));
+
+ // OK, it's now safe to #include other files.
+ printer->Print(
+ "#include <google/protobuf/generated_message_util.h>\n"
+ "#include <google/protobuf/repeated_field.h>\n"
+ "#include <google/protobuf/extension_set.h>\n");
+
+ if (HasDescriptorMethods(file_)) {
+ printer->Print(
+ "#include <google/protobuf/generated_message_reflection.h>\n");
+
+ if (file_->service_count() > 0) {
+ printer->Print(
+ "#include <google/protobuf/service.h>\n");
+ }
+ }
+
+ for (int i = 0; i < file_->dependency_count(); i++) {
+ printer->Print(
+ "#include \"$dependency$.pb.h\"\n",
+ "dependency", StripProto(file_->dependency(i)->name()));
+ }
+
+ // Open namespace.
+ GenerateNamespaceOpeners(printer);
+
+ // Forward-declare the AddDescriptors, AssignDescriptors, and ShutdownFile
+ // functions, so that we can declare them to be friends of each class.
+ printer->Print(
+ "\n"
+ "// Internal implementation detail -- do not call these.\n"
+ "void $dllexport_decl$ $adddescriptorsname$();\n",
+ "adddescriptorsname", GlobalAddDescriptorsName(file_->name()),
+ "dllexport_decl", dllexport_decl_);
+
+ printer->Print(
+ // Note that we don't put dllexport_decl on these because they are only
+ // called by the .pb.cc file in which they are defined.
+ "void $assigndescriptorsname$();\n"
+ "void $shutdownfilename$();\n"
+ "\n",
+ "assigndescriptorsname", GlobalAssignDescriptorsName(file_->name()),
+ "shutdownfilename", GlobalShutdownFileName(file_->name()));
+
+ // Generate forward declarations of classes.
+ for (int i = 0; i < file_->message_type_count(); i++) {
+ message_generators_[i]->GenerateForwardDeclaration(printer);
+ }
+
+ printer->Print("\n");
+
+ // Generate enum definitions.
+ for (int i = 0; i < file_->message_type_count(); i++) {
+ message_generators_[i]->GenerateEnumDefinitions(printer);
+ }
+ for (int i = 0; i < file_->enum_type_count(); i++) {
+ enum_generators_[i]->GenerateDefinition(printer);
+ }
+
+ printer->Print(kThickSeparator);
+ printer->Print("\n");
+
+ // Generate class definitions.
+ for (int i = 0; i < file_->message_type_count(); i++) {
+ if (i > 0) {
+ printer->Print("\n");
+ printer->Print(kThinSeparator);
+ printer->Print("\n");
+ }
+ message_generators_[i]->GenerateClassDefinition(printer);
+ }
+
+ printer->Print("\n");
+ printer->Print(kThickSeparator);
+ printer->Print("\n");
+
+ if (HasDescriptorMethods(file_)) {
+ // Generate service definitions.
+ for (int i = 0; i < file_->service_count(); i++) {
+ if (i > 0) {
+ printer->Print("\n");
+ printer->Print(kThinSeparator);
+ printer->Print("\n");
+ }
+ service_generators_[i]->GenerateDeclarations(printer);
+ }
+
+ printer->Print("\n");
+ printer->Print(kThickSeparator);
+ printer->Print("\n");
+ }
+
+ // Declare extension identifiers.
+ for (int i = 0; i < file_->extension_count(); i++) {
+ extension_generators_[i]->GenerateDeclaration(printer);
+ }
+
+ printer->Print("\n");
+ printer->Print(kThickSeparator);
+ printer->Print("\n");
+
+ // Generate class inline methods.
+ for (int i = 0; i < file_->message_type_count(); i++) {
+ if (i > 0) {
+ printer->Print(kThinSeparator);
+ printer->Print("\n");
+ }
+ message_generators_[i]->GenerateInlineMethods(printer);
+ }
+
+ // Close up namespace.
+ GenerateNamespaceClosers(printer);
+
+ // Emit GetEnumDescriptor specializations into google::protobuf namespace:
+ if (HasDescriptorMethods(file_)) {
+ // The SWIG conditional is to avoid a null-pointer dereference
+ // (bug 1984964) in swig-1.3.21 resulting from the following syntax:
+ // namespace X { void Y<Z::W>(); }
+ // which appears in GetEnumDescriptor() specializations.
+ printer->Print(
+ "\n"
+ "#ifndef SWIG\n"
+ "namespace google {\nnamespace protobuf {\n"
+ "\n");
+ for (int i = 0; i < file_->message_type_count(); i++) {
+ message_generators_[i]->GenerateGetEnumDescriptorSpecializations(printer);
+ }
+ for (int i = 0; i < file_->enum_type_count(); i++) {
+ enum_generators_[i]->GenerateGetEnumDescriptorSpecializations(printer);
+ }
+ printer->Print(
+ "\n"
+ "} // namespace google\n} // namespace protobuf\n"
+ "#endif // SWIG\n"
+ "\n");
+ }
+
+ printer->Print(
+ "#endif // PROTOBUF_$filename_identifier$__INCLUDED\n",
+ "filename_identifier", filename_identifier);
+}
+
+void FileGenerator::GenerateSource(io::Printer* printer) {
+ printer->Print(
+ "// Generated by the protocol buffer compiler. DO NOT EDIT!\n"
+ "\n"
+ // The generated code calls accessors that might be deprecated. We don't
+ // want the compiler to warn in generated code.
+ "#define INTERNAL_SUPPRESS_PROTOBUF_FIELD_DEPRECATION\n"
+ "#include \"$basename$.pb.h\"\n"
+
+ "#include <google/protobuf/stubs/once.h>\n"
+ "#include <google/protobuf/io/coded_stream.h>\n"
+ "#include <google/protobuf/wire_format_lite_inl.h>\n",
+ "basename", StripProto(file_->name()));
+
+ if (HasDescriptorMethods(file_)) {
+ printer->Print(
+ "#include <google/protobuf/descriptor.h>\n"
+ "#include <google/protobuf/reflection_ops.h>\n"
+ "#include <google/protobuf/wire_format.h>\n");
+ }
+
+ GenerateNamespaceOpeners(printer);
+
+ if (HasDescriptorMethods(file_)) {
+ printer->Print(
+ "\n"
+ "namespace {\n"
+ "\n");
+ for (int i = 0; i < file_->message_type_count(); i++) {
+ message_generators_[i]->GenerateDescriptorDeclarations(printer);
+ }
+ for (int i = 0; i < file_->enum_type_count(); i++) {
+ printer->Print(
+ "const ::google::protobuf::EnumDescriptor* $name$_descriptor_ = NULL;\n",
+ "name", ClassName(file_->enum_type(i), false));
+ }
+ for (int i = 0; i < file_->service_count(); i++) {
+ printer->Print(
+ "const ::google::protobuf::ServiceDescriptor* $name$_descriptor_ = NULL;\n",
+ "name", file_->service(i)->name());
+ }
+
+ printer->Print(
+ "\n"
+ "} // namespace\n"
+ "\n");
+ }
+
+ // Define our externally-visible BuildDescriptors() function. (For the lite
+ // library, all this does is initialize default instances.)
+ GenerateBuildDescriptors(printer);
+
+ // Generate enums.
+ for (int i = 0; i < file_->enum_type_count(); i++) {
+ enum_generators_[i]->GenerateMethods(printer);
+ }
+
+ // Generate classes.
+ for (int i = 0; i < file_->message_type_count(); i++) {
+ printer->Print("\n");
+ printer->Print(kThickSeparator);
+ printer->Print("\n");
+ message_generators_[i]->GenerateClassMethods(printer);
+ }
+
+ if (HasDescriptorMethods(file_)) {
+ // Generate services.
+ for (int i = 0; i < file_->service_count(); i++) {
+ if (i == 0) printer->Print("\n");
+ printer->Print(kThickSeparator);
+ printer->Print("\n");
+ service_generators_[i]->GenerateImplementation(printer);
+ }
+ }
+
+ // Define extensions.
+ for (int i = 0; i < file_->extension_count(); i++) {
+ extension_generators_[i]->GenerateDefinition(printer);
+ }
+
+ GenerateNamespaceClosers(printer);
+}
+
+void FileGenerator::GenerateBuildDescriptors(io::Printer* printer) {
+ // AddDescriptors() is a file-level procedure which adds the encoded
+ // FileDescriptorProto for this .proto file to the global DescriptorPool
+ // for generated files (DescriptorPool::generated_pool()). It always runs
+ // at static initialization time, so all files will be registered before
+ // main() starts. This procedure also constructs default instances and
+ // registers extensions.
+ //
+ // Its sibling, AssignDescriptors(), actually pulls the compiled
+ // FileDescriptor from the DescriptorPool and uses it to populate all of
+ // the global variables which store pointers to the descriptor objects.
+ // It also constructs the reflection objects. It is called the first time
+ // anyone calls descriptor() or GetReflection() on one of the types defined
+ // in the file.
+
+ // In optimize_for = LITE_RUNTIME mode, we don't generate AssignDescriptors()
+ // and we only use AddDescriptors() to allocate default instances.
+ if (HasDescriptorMethods(file_)) {
+ printer->Print(
+ "\n"
+ "void $assigndescriptorsname$() {\n",
+ "assigndescriptorsname", GlobalAssignDescriptorsName(file_->name()));
+ printer->Indent();
+
+ // Make sure the file has found its way into the pool. If a descriptor
+ // is requested *during* static init then AddDescriptors() may not have
+ // been called yet, so we call it manually. Note that it's fine if
+ // AddDescriptors() is called multiple times.
+ printer->Print(
+ "$adddescriptorsname$();\n",
+ "adddescriptorsname", GlobalAddDescriptorsName(file_->name()));
+
+ // Get the file's descriptor from the pool.
+ printer->Print(
+ "const ::google::protobuf::FileDescriptor* file =\n"
+ " ::google::protobuf::DescriptorPool::generated_pool()->FindFileByName(\n"
+ " \"$filename$\");\n"
+ // Note that this GOOGLE_CHECK is necessary to prevent a warning about "file"
+ // being unused when compiling an empty .proto file.
+ "GOOGLE_CHECK(file != NULL);\n",
+ "filename", file_->name());
+
+ // Go through all the stuff defined in this file and generated code to
+ // assign the global descriptor pointers based on the file descriptor.
+ for (int i = 0; i < file_->message_type_count(); i++) {
+ message_generators_[i]->GenerateDescriptorInitializer(printer, i);
+ }
+ for (int i = 0; i < file_->enum_type_count(); i++) {
+ enum_generators_[i]->GenerateDescriptorInitializer(printer, i);
+ }
+ for (int i = 0; i < file_->service_count(); i++) {
+ service_generators_[i]->GenerateDescriptorInitializer(printer, i);
+ }
+
+ printer->Outdent();
+ printer->Print(
+ "}\n"
+ "\n");
+
+ // ---------------------------------------------------------------
+
+ // protobuf_AssignDescriptorsOnce(): The first time it is called, calls
+ // AssignDescriptors(). All later times, waits for the first call to
+ // complete and then returns.
+ printer->Print(
+ "namespace {\n"
+ "\n"
+ "GOOGLE_PROTOBUF_DECLARE_ONCE(protobuf_AssignDescriptors_once_);\n"
+ "inline void protobuf_AssignDescriptorsOnce() {\n"
+ " ::google::protobuf::GoogleOnceInit(&protobuf_AssignDescriptors_once_,\n"
+ " &$assigndescriptorsname$);\n"
+ "}\n"
+ "\n",
+ "assigndescriptorsname", GlobalAssignDescriptorsName(file_->name()));
+
+ // protobuf_RegisterTypes(): Calls
+ // MessageFactory::InternalRegisterGeneratedType() for each message type.
+ printer->Print(
+ "void protobuf_RegisterTypes(const ::std::string&) {\n"
+ " protobuf_AssignDescriptorsOnce();\n");
+ printer->Indent();
+
+ for (int i = 0; i < file_->message_type_count(); i++) {
+ message_generators_[i]->GenerateTypeRegistrations(printer);
+ }
+
+ printer->Outdent();
+ printer->Print(
+ "}\n"
+ "\n"
+ "} // namespace\n");
+ }
+
+ // -----------------------------------------------------------------
+
+ // ShutdownFile(): Deletes descriptors, default instances, etc. on shutdown.
+ printer->Print(
+ "\n"
+ "void $shutdownfilename$() {\n",
+ "shutdownfilename", GlobalShutdownFileName(file_->name()));
+ printer->Indent();
+
+ for (int i = 0; i < file_->message_type_count(); i++) {
+ message_generators_[i]->GenerateShutdownCode(printer);
+ }
+
+ printer->Outdent();
+ printer->Print(
+ "}\n");
+
+ // -----------------------------------------------------------------
+
+ // Now generate the AddDescriptors() function.
+ printer->Print(
+ "\n"
+ "void $adddescriptorsname$() {\n"
+ // We don't need any special synchronization here because this code is
+ // called at static init time before any threads exist.
+ " static bool already_here = false;\n"
+ " if (already_here) return;\n"
+ " already_here = true;\n"
+ " GOOGLE_PROTOBUF_VERIFY_VERSION;\n"
+ "\n",
+ "adddescriptorsname", GlobalAddDescriptorsName(file_->name()));
+ printer->Indent();
+
+ // Call the AddDescriptors() methods for all of our dependencies, to make
+ // sure they get added first.
+ for (int i = 0; i < file_->dependency_count(); i++) {
+ const FileDescriptor* dependency = file_->dependency(i);
+ // Print the namespace prefix for the dependency.
+ vector<string> dependency_package_parts;
+ SplitStringUsing(dependency->package(), ".", &dependency_package_parts);
+ printer->Print("::");
+ for (int i = 0; i < dependency_package_parts.size(); i++) {
+ printer->Print("$name$::",
+ "name", dependency_package_parts[i]);
+ }
+ // Call its AddDescriptors function.
+ printer->Print(
+ "$name$();\n",
+ "name", GlobalAddDescriptorsName(dependency->name()));
+ }
+
+ if (HasDescriptorMethods(file_)) {
+ // Embed the descriptor. We simply serialize the entire FileDescriptorProto
+ // and embed it as a string literal, which is parsed and built into real
+ // descriptors at initialization time.
+ FileDescriptorProto file_proto;
+ file_->CopyTo(&file_proto);
+ string file_data;
+ file_proto.SerializeToString(&file_data);
+
+ printer->Print(
+ "::google::protobuf::DescriptorPool::InternalAddGeneratedFile(");
+
+ // Only write 40 bytes per line.
+ static const int kBytesPerLine = 40;
+ for (int i = 0; i < file_data.size(); i += kBytesPerLine) {
+ printer->Print("\n \"$data$\"",
+ "data", CEscape(file_data.substr(i, kBytesPerLine)));
+ }
+ printer->Print(
+ ", $size$);\n",
+ "size", SimpleItoa(file_data.size()));
+
+ // Call MessageFactory::InternalRegisterGeneratedFile().
+ printer->Print(
+ "::google::protobuf::MessageFactory::InternalRegisterGeneratedFile(\n"
+ " \"$filename$\", &protobuf_RegisterTypes);\n",
+ "filename", file_->name());
+ }
+
+ // Allocate and initialize default instances. This can't be done lazily
+ // since default instances are returned by simple accessors and are used with
+ // extensions. Speaking of which, we also register extensions at this time.
+ for (int i = 0; i < file_->message_type_count(); i++) {
+ message_generators_[i]->GenerateDefaultInstanceAllocator(printer);
+ }
+ for (int i = 0; i < file_->extension_count(); i++) {
+ extension_generators_[i]->GenerateRegistration(printer);
+ }
+ for (int i = 0; i < file_->message_type_count(); i++) {
+ message_generators_[i]->GenerateDefaultInstanceInitializer(printer);
+ }
+
+ printer->Print(
+ "::google::protobuf::internal::OnShutdown(&$shutdownfilename$);\n",
+ "shutdownfilename", GlobalShutdownFileName(file_->name()));
+
+ printer->Outdent();
+
+ printer->Print(
+ "}\n"
+ "\n"
+ "// Force AddDescriptors() to be called at static initialization time.\n"
+ "struct StaticDescriptorInitializer_$filename$ {\n"
+ " StaticDescriptorInitializer_$filename$() {\n"
+ " $adddescriptorsname$();\n"
+ " }\n"
+ "} static_descriptor_initializer_$filename$_;\n"
+ "\n",
+ "adddescriptorsname", GlobalAddDescriptorsName(file_->name()),
+ "filename", FilenameIdentifier(file_->name()));
+}
+
+void FileGenerator::GenerateNamespaceOpeners(io::Printer* printer) {
+ if (package_parts_.size() > 0) printer->Print("\n");
+
+ for (int i = 0; i < package_parts_.size(); i++) {
+ printer->Print("namespace $part$ {\n",
+ "part", package_parts_[i]);
+ }
+}
+
+void FileGenerator::GenerateNamespaceClosers(io::Printer* printer) {
+ if (package_parts_.size() > 0) printer->Print("\n");
+
+ for (int i = package_parts_.size() - 1; i >= 0; i--) {
+ printer->Print("} // namespace $part$\n",
+ "part", package_parts_[i]);
+ }
+}
+
+} // namespace cpp
+} // namespace compiler
+} // namespace protobuf
+} // namespace google