diff options
Diffstat (limited to 'src/google/protobuf/compiler/cpp/cpp_file.cc')
| -rw-r--r-- | src/google/protobuf/compiler/cpp/cpp_file.cc | 185 |
1 files changed, 82 insertions, 103 deletions
diff --git a/src/google/protobuf/compiler/cpp/cpp_file.cc b/src/google/protobuf/compiler/cpp/cpp_file.cc index 9cfd6ec6..0e5e2f18 100644 --- a/src/google/protobuf/compiler/cpp/cpp_file.cc +++ b/src/google/protobuf/compiler/cpp/cpp_file.cc @@ -284,8 +284,13 @@ void FileGenerator::GenerateSource(io::Printer* printer) { if (IsMapEntryMessage(message_generators_[i]->descriptor_)) continue; printer->Print( "class $classname$DefaultTypeInternal : " - "public ::google::protobuf::internal::ExplicitlyConstructed<$classname$> {};\n" - "$classname$DefaultTypeInternal _$classname$_default_instance_;\n", + "public ::google::protobuf::internal::ExplicitlyConstructed<$classname$> {\n", + "classname", message_generators_[i]->classname_); + printer->Indent(); + message_generators_[i]->GenerateExtraDefaultFields(printer); + printer->Outdent(); + printer->Print( + "} _$classname$_default_instance_;\n", "classname", message_generators_[i]->classname_); } @@ -301,6 +306,12 @@ void FileGenerator::GenerateSource(io::Printer* printer) { } } + printer->Print( + "\n" + "namespace $file_namespace$ {\n" + "\n", + "file_namespace", FileLevelNamespace(file_->name())); + if (HasDescriptorMethods(file_, options_)) { printer->Print( "\n" @@ -324,10 +335,6 @@ void FileGenerator::GenerateSource(io::Printer* printer) { "size", SimpleItoa(file_->service_count())); } - for (int i = 0; i < message_generators_.size(); i++) { - message_generators_[i]->GenerateDescriptorDeclarations(printer); - } - printer->Print( "\n" "} // namespace\n" @@ -338,6 +345,12 @@ void FileGenerator::GenerateSource(io::Printer* printer) { // library, all this does is initialize default instances.) GenerateBuildDescriptors(printer); + printer->Print( + "\n" + "} // namespace $file_namespace$\n" + "\n", + "file_namespace", FileLevelNamespace(file_->name())); + // Generate enums. for (int i = 0; i < enum_generators_.size(); i++) { enum_generators_[i]->GenerateMethods(printer); @@ -473,28 +486,16 @@ void FileGenerator::GenerateBuildDescriptors(io::Printer* printer) { if (HasDescriptorMethods(file_, options_)) { if (!message_generators_.empty()) { - printer->Print( - "\n" - "const ::google::protobuf::uint32* $offsetfunname$() GOOGLE_ATTRIBUTE_COLD;\n" - "const ::google::protobuf::uint32* $offsetfunname$() {\n", - "offsetfunname", GlobalOffsetTableName(file_->name())); - printer->Indent(); - - printer->Print("static const ::google::protobuf::uint32 offsets[] = {\n"); + printer->Print("const ::google::protobuf::uint32 TableStruct::offsets[] = {\n"); printer->Indent(); std::vector<std::pair<size_t, size_t> > pairs; for (int i = 0; i < message_generators_.size(); i++) { pairs.push_back(message_generators_[i]->GenerateOffsets(printer)); } printer->Outdent(); - printer->Outdent(); - printer->Print( - " };\n" - " return offsets;\n" - "}\n" - "\n"); - printer->Print( + "};\n" + "\n" "static const ::google::protobuf::internal::MigrationSchema schemas[] = {\n"); printer->Indent(); { @@ -508,25 +509,17 @@ void FileGenerator::GenerateBuildDescriptors(io::Printer* printer) { printer->Outdent(); printer->Print( "};\n" - "\n" - "static const ::google::protobuf::internal::DefaultInstanceData " - "file_default_instances[] = {\n"); + "\nstatic " + "::google::protobuf::Message const * const file_default_instances[] = {\n"); printer->Indent(); for (int i = 0; i < message_generators_.size(); i++) { const Descriptor* descriptor = message_generators_[i]->descriptor_; if (IsMapEntryMessage(descriptor)) continue; - string oneof_default = "NULL"; - if (message_generators_[i]->descriptor_->oneof_decl_count()) { - oneof_default = - "&" + ClassName(descriptor, false) + "_default_oneof_instance_"; - } printer->Print( - "{reinterpret_cast<const " - "::google::protobuf::Message*>(&_$classname$_default_instance_), " - "$oneof_default$},\n", - "classname", ClassName(descriptor, false), "oneof_default", - oneof_default); + "reinterpret_cast<const " + "::google::protobuf::Message*>(&_$classname$_default_instance_),\n", + "classname", ClassName(descriptor, false)); } printer->Outdent(); printer->Print( @@ -535,12 +528,11 @@ void FileGenerator::GenerateBuildDescriptors(io::Printer* printer) { } else { // we still need these symbols to exist printer->Print( - "inline ::google::protobuf::uint32* $offsetfunname$() { return NULL; }\n" + // MSVC doesn't like empty arrays, so we add a dummy. + "const ::google::protobuf::uint32 TableStruct::offsets[] = { ~0u };\n" "static const ::google::protobuf::internal::MigrationSchema* schemas = NULL;\n" - "static const ::google::protobuf::internal::DefaultInstanceData* " - "file_default_instances = NULL;\n", - "offsetfunname", - GlobalOffsetTableName(file_->name())); + "static const ::google::protobuf::Message* const* " + "file_default_instances = NULL;\n"); } // --------------------------------------------------------------- @@ -557,11 +549,11 @@ void FileGenerator::GenerateBuildDescriptors(io::Printer* printer) { // 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. - " $adddescriptorsname$();\n" + " AddDescriptors();\n" " ::google::protobuf::MessageFactory* factory = $factory$;\n" " AssignDescriptors(\n" " \"$filename$\", schemas, file_default_instances, " - "$offsetfunname$(), factory,\n" + "TableStruct::offsets, factory,\n" " $metadata$, $enum_descriptors$, $service_descriptors$);\n" "}\n" "\n" @@ -570,9 +562,7 @@ void FileGenerator::GenerateBuildDescriptors(io::Printer* printer) { " ::google::protobuf::GoogleOnceInit(&once, &protobuf_AssignDescriptors);\n" "}\n" "\n", - "adddescriptorsname", GlobalAddDescriptorsName(file_->name()), - "offsetfunname", GlobalOffsetTableName(file_->name()), "filename", - file_->name(), "metadata", + "filename", file_->name(), "metadata", !message_generators_.empty() ? "file_level_metadata" : "NULL", "enum_descriptors", !enum_generators_.empty() ? "file_level_enum_descriptors" : "NULL", @@ -616,8 +606,7 @@ void FileGenerator::GenerateBuildDescriptors(io::Printer* printer) { // ShutdownFile(): Deletes descriptors, default instances, etc. on shutdown. printer->Print( "\n" - "void $shutdownfilename$() {\n", - "shutdownfilename", GlobalShutdownFileName(file_->name())); + "void TableStruct::Shutdown() {\n"); printer->Indent(); for (int i = 0; i < message_generators_.size(); i++) { @@ -630,13 +619,12 @@ void FileGenerator::GenerateBuildDescriptors(io::Printer* printer) { // ----------------------------------------------------------------- - // Now generate the InitDefaults() function. + // Now generate the InitDefaultsImpl() function. printer->Print( - "void $initdefaultsname$_impl() {\n" + "void TableStruct::InitDefaultsImpl() {\n" " GOOGLE_PROTOBUF_VERIFY_VERSION;\n\n" - "", - // Vars. - "initdefaultsname", GlobalInitDefaultsName(file_->name())); + // Force initialization of primitive values we depend on. + " ::google::protobuf::internal::InitProtobufDefaults();\n"); printer->Indent(); @@ -645,17 +633,13 @@ void FileGenerator::GenerateBuildDescriptors(io::Printer* printer) { for (int i = 0; i < file_->dependency_count(); i++) { const FileDescriptor* dependency = file_->dependency(i); // Print the namespace prefix for the dependency. - string add_desc_name = QualifiedFileLevelSymbol( - dependency->package(), GlobalInitDefaultsName(dependency->name())); + string file_namespace = QualifiedFileLevelSymbol( + dependency->package(), FileLevelNamespace(dependency->name())); // Call its AddDescriptors function. - printer->Print( - "$name$();\n", - "name", add_desc_name); + printer->Print("$file_namespace$::InitDefaults();\n", "file_namespace", + file_namespace); } - // Force initialization of primitive values we depend on. - printer->Print("::google::protobuf::internal::InitProtobufDefaults();\n"); - // 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. @@ -672,21 +656,17 @@ void FileGenerator::GenerateBuildDescriptors(io::Printer* printer) { printer->Print( "}\n" "\n" - "void $initdefaultsname$() {\n" + "void InitDefaults() {\n" " static GOOGLE_PROTOBUF_DECLARE_ONCE(once);\n" - " ::google::protobuf::GoogleOnceInit(&once, &$initdefaultsname$_impl);\n" - "}\n", - "initdefaultsname", GlobalInitDefaultsName(file_->name())); + " ::google::protobuf::GoogleOnceInit(&once, &TableStruct::InitDefaultsImpl);\n" + "}\n"); // ----------------------------------------------------------------- // Now generate the AddDescriptors() function. printer->Print( - "void $adddescriptorsname$_impl() {\n" - " $initdefaultsname$();\n", - // Vars. - "adddescriptorsname", GlobalAddDescriptorsName(file_->name()), - "initdefaultsname", GlobalInitDefaultsName(file_->name())); + "void AddDescriptorsImpl() {\n" + " InitDefaults();\n"); printer->Indent(); if (HasDescriptorMethods(file_, options_)) { @@ -702,12 +682,7 @@ void FileGenerator::GenerateBuildDescriptors(io::Printer* printer) { printer->Print("static const char descriptor[] = {\n"); printer->Indent(); -#ifdef _MSC_VER - bool breakdown_large_file = true; -#else - bool breakdown_large_file = false; -#endif - if (breakdown_large_file && file_data.size() > 66538) { + if (file_data.size() > 66535) { // Workaround for MSVC: "Error C1091: compiler limit: string exceeds 65535 // bytes in length". Declare a static array of characters rather than use // a string literal. Only write 25 bytes per line. @@ -748,42 +723,36 @@ void FileGenerator::GenerateBuildDescriptors(io::Printer* printer) { for (int i = 0; i < file_->dependency_count(); i++) { const FileDescriptor* dependency = file_->dependency(i); // Print the namespace prefix for the dependency. - string add_desc_name = QualifiedFileLevelSymbol( - dependency->package(), GlobalAddDescriptorsName(dependency->name())); + string file_namespace = QualifiedFileLevelSymbol( + dependency->package(), FileLevelNamespace(dependency->name())); // Call its AddDescriptors function. - printer->Print("$adddescriptorsname$();\n", "adddescriptorsname", - add_desc_name); + printer->Print("$file_namespace$::AddDescriptors();\n", "file_namespace", + file_namespace); } printer->Print( - "::google::protobuf::internal::OnShutdown(&$shutdownfilename$);\n", - "shutdownfilename", GlobalShutdownFileName(file_->name())); + "::google::protobuf::internal::OnShutdown(&TableStruct::Shutdown);\n"); printer->Outdent(); printer->Print( "}\n" "\n" - "GOOGLE_PROTOBUF_DECLARE_ONCE($adddescriptorsname$_once_);\n" - "void $adddescriptorsname$() {\n" - " ::google::protobuf::GoogleOnceInit(&$adddescriptorsname$_once_,\n" - " &$adddescriptorsname$_impl);\n" - "}\n", - "adddescriptorsname", GlobalAddDescriptorsName(file_->name())); + "void AddDescriptors() {\n" + " static GOOGLE_PROTOBUF_DECLARE_ONCE(once);\n" + " ::google::protobuf::GoogleOnceInit(&once, &AddDescriptorsImpl);\n" + "}\n"); if (!StaticInitializersForced(file_, options_)) { - printer->Print("#ifndef GOOGLE_PROTOBUF_NO_STATIC_INITIALIZER\n"); + printer->Print("#ifdef GOOGLE_PROTOBUF_NO_STATIC_INITIALIZER\n"); } printer->Print( // With static initializers. "// Force AddDescriptors() to be called at static initialization time.\n" - "struct StaticDescriptorInitializer_$filename$ {\n" - " StaticDescriptorInitializer_$filename$() {\n" - " $adddescriptorsname$();\n" + "struct StaticDescriptorInitializer {\n" + " StaticDescriptorInitializer() {\n" + " AddDescriptors();\n" " }\n" - "} static_descriptor_initializer_$filename$_;\n", - // Vars. - "adddescriptorsname", GlobalAddDescriptorsName(file_->name()), "filename", - FilenameIdentifier(file_->name())); + "} static_descriptor_initializer;\n"); if (!StaticInitializersForced(file_, options_)) { printer->Print("#endif // GOOGLE_PROTOBUF_NO_STATIC_INITIALIZER\n"); } @@ -884,10 +853,11 @@ void FileGenerator::GenerateLibraryIncludes(io::Printer* printer) { // OK, it's now safe to #include other files. printer->Print( - "#include <google/protobuf/arena.h>\n" - "#include <google/protobuf/arenastring.h>\n" - "#include <google/protobuf/generated_message_util.h>\n" - "#include <google/protobuf/metadata.h>\n"); + "#include <google/protobuf/io/coded_stream.h>\n" + "#include <google/protobuf/arena.h>\n" + "#include <google/protobuf/arenastring.h>\n" + "#include <google/protobuf/generated_message_util.h>\n" + "#include <google/protobuf/metadata.h>\n"); if (!message_generators_.empty()) { if (HasDescriptorMethods(file_, options_)) { @@ -982,12 +952,21 @@ void FileGenerator::GenerateGlobalStateFunctionDeclarations( // functions, so that we can declare them to be friends of each class. printer->Print( "\n" + "namespace $file_namespace$ {\n" "// Internal implementation detail -- do not call these.\n" - "void $dllexport_decl$$adddescriptorsname$();\n" - "void $dllexport_decl$$initdefaultsname$();\n", - "initdefaultsname", GlobalInitDefaultsName(file_->name()), - "adddescriptorsname", GlobalAddDescriptorsName(file_->name()), - "dllexport_decl", + "struct $dllexport_decl$TableStruct {\n" + " static const ::google::protobuf::uint32 offsets[];\n" + // The following function(s) need to be able to access private members of + // the messages defined in the file. So we make them static members. + // This is the internal implementation of InitDefaults. It should only + // be called by InitDefaults which makes sure it will be called only once. + " static void InitDefaultsImpl();\n" + " static void Shutdown();\n" + "};\n" + "void $dllexport_decl$AddDescriptors();\n" + "void $dllexport_decl$InitDefaults();\n" + "} // namespace $file_namespace$\n", + "file_namespace", FileLevelNamespace(file_->name()), "dllexport_decl", options_.dllexport_decl.empty() ? "" : options_.dllexport_decl + " "); } |