| Index: third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_message.cc
|
| diff --git a/third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_message.cc b/third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_message.cc
|
| index f8d060a791cc5c2ffceb5c8564c3d095fc5023a2..9baaa35dffa154a8062410355ff98cfa18fd67bb 100644
|
| --- a/third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_message.cc
|
| +++ b/third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_message.cc
|
| @@ -1,6 +1,6 @@
|
| // Protocol Buffers - Google's data interchange format
|
| // Copyright 2008 Google Inc. All rights reserved.
|
| -// http://code.google.com/p/protobuf/
|
| +// 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
|
| @@ -35,6 +35,10 @@
|
| #include <algorithm>
|
| #include <google/protobuf/stubs/hash.h>
|
| #include <map>
|
| +#include <memory>
|
| +#ifndef _SHARED_PTR_H
|
| +#include <google/protobuf/stubs/shared_ptr.h>
|
| +#endif
|
| #include <utility>
|
| #include <vector>
|
| #include <google/protobuf/compiler/cpp/cpp_message.h>
|
| @@ -59,10 +63,15 @@ using internal::WireFormatLite;
|
|
|
| namespace {
|
|
|
| -void PrintFieldComment(io::Printer* printer, const FieldDescriptor* field) {
|
| - // Print the field's proto-syntax definition as a comment. We don't want to
|
| - // print group bodies so we cut off after the first line.
|
| - string def = field->DebugString();
|
| +template <class T>
|
| +void PrintFieldComment(io::Printer* printer, const T* field) {
|
| + // Print the field's (or oneof's) proto-syntax definition as a comment.
|
| + // We don't want to print group bodies so we cut off after the first
|
| + // line.
|
| + DebugStringOptions options;
|
| + options.elide_group_body = true;
|
| + options.elide_oneof_body = true;
|
| + string def = field->DebugStringWithOptions(options);
|
| printer->Print("// $def$\n",
|
| "def", def.substr(0, def.find_first_of('\n')));
|
| }
|
| @@ -74,15 +83,6 @@ struct FieldOrderingByNumber {
|
| }
|
| };
|
|
|
| -const char* kWireTypeNames[] = {
|
| - "VARINT",
|
| - "FIXED64",
|
| - "LENGTH_DELIMITED",
|
| - "START_GROUP",
|
| - "END_GROUP",
|
| - "FIXED32",
|
| -};
|
| -
|
| // Sort the fields of the given Descriptor by number into a new[]'d array
|
| // and return it.
|
| const FieldDescriptor** SortFieldsByNumber(const Descriptor* descriptor) {
|
| @@ -91,8 +91,8 @@ const FieldDescriptor** SortFieldsByNumber(const Descriptor* descriptor) {
|
| for (int i = 0; i < descriptor->field_count(); i++) {
|
| fields[i] = descriptor->field(i);
|
| }
|
| - sort(fields, fields + descriptor->field_count(),
|
| - FieldOrderingByNumber());
|
| + std::sort(fields, fields + descriptor->field_count(),
|
| + FieldOrderingByNumber());
|
| return fields;
|
| }
|
|
|
| @@ -255,8 +255,9 @@ void OptimizePadding(vector<const FieldDescriptor*>* fields) {
|
| aligned_to_4.push_back(field_group);
|
| }
|
| // Sort by preferred location to keep fields as close to their original
|
| - // location as possible.
|
| - sort(aligned_to_4.begin(), aligned_to_4.end());
|
| + // location as possible. Using stable_sort ensures that the output is
|
| + // consistent across runs.
|
| + std::stable_sort(aligned_to_4.begin(), aligned_to_4.end());
|
|
|
| // Now group fields aligned to 4 bytes (or the 4-field groups created above)
|
| // into pairs, and treat those like a single field aligned to 8 bytes.
|
| @@ -271,9 +272,8 @@ void OptimizePadding(vector<const FieldDescriptor*>* fields) {
|
| }
|
| aligned_to_8.push_back(field_group);
|
| }
|
| - // Sort by preferred location to keep fields as close to their original
|
| - // location as possible.
|
| - sort(aligned_to_8.begin(), aligned_to_8.end());
|
| + // Sort by preferred location.
|
| + std::stable_sort(aligned_to_8.begin(), aligned_to_8.end());
|
|
|
| // Now pull out all the FieldDescriptors in order.
|
| fields->clear();
|
| @@ -284,22 +284,111 @@ void OptimizePadding(vector<const FieldDescriptor*>* fields) {
|
| }
|
| }
|
|
|
| +string MessageTypeProtoName(const FieldDescriptor* field) {
|
| + return field->message_type()->full_name();
|
| +}
|
| +
|
| +// Emits an if-statement with a condition that evaluates to true if |field| is
|
| +// considered non-default (will be sent over the wire), for message types
|
| +// without true field presence. Should only be called if
|
| +// !HasFieldPresence(message_descriptor).
|
| +bool EmitFieldNonDefaultCondition(io::Printer* printer,
|
| + const string& prefix,
|
| + const FieldDescriptor* field) {
|
| + // Merge and serialize semantics: primitive fields are merged/serialized only
|
| + // if non-zero (numeric) or non-empty (string).
|
| + if (!field->is_repeated() && !field->containing_oneof()) {
|
| + if (field->cpp_type() == FieldDescriptor::CPPTYPE_STRING) {
|
| + printer->Print(
|
| + "if ($prefix$$name$().size() > 0) {\n",
|
| + "prefix", prefix,
|
| + "name", FieldName(field));
|
| + } else if (field->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE) {
|
| + // Message fields still have has_$name$() methods.
|
| + printer->Print(
|
| + "if ($prefix$has_$name$()) {\n",
|
| + "prefix", prefix,
|
| + "name", FieldName(field));
|
| + } else {
|
| + printer->Print(
|
| + "if ($prefix$$name$() != 0) {\n",
|
| + "prefix", prefix,
|
| + "name", FieldName(field));
|
| + }
|
| + printer->Indent();
|
| + return true;
|
| + } else if (field->containing_oneof()) {
|
| + printer->Print(
|
| + "if (has_$name$()) {\n",
|
| + "name", FieldName(field));
|
| + printer->Indent();
|
| + return true;
|
| + }
|
| + return false;
|
| +}
|
| +
|
| +// Does the given field have a has_$name$() method?
|
| +bool HasHasMethod(const FieldDescriptor* field) {
|
| + if (HasFieldPresence(field->file())) {
|
| + // In proto1/proto2, every field has a has_$name$() method.
|
| + return true;
|
| + }
|
| + // For message types without true field presence, only fields with a message
|
| + // type have a has_$name$() method.
|
| + return field->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE;
|
| +}
|
| +
|
| +// Collects map entry message type information.
|
| +void CollectMapInfo(const Descriptor* descriptor,
|
| + map<string, string>* variables) {
|
| + GOOGLE_CHECK(IsMapEntryMessage(descriptor));
|
| + const FieldDescriptor* key = descriptor->FindFieldByName("key");
|
| + const FieldDescriptor* val = descriptor->FindFieldByName("value");
|
| + (*variables)["key"] = PrimitiveTypeName(key->cpp_type());
|
| + switch (val->cpp_type()) {
|
| + case FieldDescriptor::CPPTYPE_MESSAGE:
|
| + (*variables)["val"] = FieldMessageTypeName(val);
|
| + break;
|
| + case FieldDescriptor::CPPTYPE_ENUM:
|
| + (*variables)["val"] = ClassName(val->enum_type(), true);
|
| + break;
|
| + default:
|
| + (*variables)["val"] = PrimitiveTypeName(val->cpp_type());
|
| + }
|
| + (*variables)["key_wire_type"] =
|
| + "::google::protobuf::internal::WireFormatLite::TYPE_" +
|
| + ToUpper(DeclaredTypeMethodName(key->type()));
|
| + (*variables)["val_wire_type"] =
|
| + "::google::protobuf::internal::WireFormatLite::TYPE_" +
|
| + ToUpper(DeclaredTypeMethodName(val->type()));
|
| +}
|
| +
|
| +// Does the given field have a private (internal helper only) has_$name$()
|
| +// method?
|
| +bool HasPrivateHasMethod(const FieldDescriptor* field) {
|
| + // Only for oneofs in message types with no field presence. has_$name$(),
|
| + // based on the oneof case, is still useful internally for generated code.
|
| + return (!HasFieldPresence(field->file()) &&
|
| + field->containing_oneof() != NULL);
|
| }
|
|
|
| +} // anonymous namespace
|
| +
|
| // ===================================================================
|
|
|
| MessageGenerator::MessageGenerator(const Descriptor* descriptor,
|
| const Options& options)
|
| - : descriptor_(descriptor),
|
| - classname_(ClassName(descriptor, false)),
|
| - options_(options),
|
| - field_generators_(descriptor, options),
|
| - nested_generators_(new scoped_ptr<MessageGenerator>[
|
| - descriptor->nested_type_count()]),
|
| - enum_generators_(new scoped_ptr<EnumGenerator>[
|
| - descriptor->enum_type_count()]),
|
| - extension_generators_(new scoped_ptr<ExtensionGenerator>[
|
| - descriptor->extension_count()]) {
|
| + : descriptor_(descriptor),
|
| + classname_(ClassName(descriptor, false)),
|
| + options_(options),
|
| + field_generators_(descriptor, options),
|
| + nested_generators_(new google::protobuf::scoped_ptr<
|
| + MessageGenerator>[descriptor->nested_type_count()]),
|
| + enum_generators_(
|
| + new google::protobuf::scoped_ptr<EnumGenerator>[descriptor->enum_type_count()]),
|
| + extension_generators_(new google::protobuf::scoped_ptr<
|
| + ExtensionGenerator>[descriptor->extension_count()]),
|
| + use_dependent_base_(false) {
|
|
|
| for (int i = 0; i < descriptor->nested_type_count(); i++) {
|
| nested_generators_[i].reset(
|
| @@ -315,17 +404,44 @@ MessageGenerator::MessageGenerator(const Descriptor* descriptor,
|
| extension_generators_[i].reset(
|
| new ExtensionGenerator(descriptor->extension(i), options));
|
| }
|
| +
|
| + num_required_fields_ = 0;
|
| + for (int i = 0; i < descriptor->field_count(); i++) {
|
| + if (descriptor->field(i)->is_required()) {
|
| + ++num_required_fields_;
|
| + }
|
| + if (options.proto_h && IsFieldDependent(descriptor->field(i))) {
|
| + use_dependent_base_ = true;
|
| + }
|
| + }
|
| + if (options.proto_h && descriptor->oneof_decl_count() > 0) {
|
| + // Always make oneofs dependent.
|
| + use_dependent_base_ = true;
|
| + }
|
| }
|
|
|
| MessageGenerator::~MessageGenerator() {}
|
|
|
| void MessageGenerator::
|
| -GenerateForwardDeclaration(io::Printer* printer) {
|
| - printer->Print("class $classname$;\n",
|
| - "classname", classname_);
|
| +FillMessageForwardDeclarations(set<string>* class_names) {
|
| + class_names->insert(classname_);
|
| +
|
| + for (int i = 0; i < descriptor_->nested_type_count(); i++) {
|
| + // map entry message doesn't need forward declaration. Since map entry
|
| + // message cannot be a top level class, we just need to avoid calling
|
| + // GenerateForwardDeclaration here.
|
| + if (IsMapEntryMessage(descriptor_->nested_type(i))) continue;
|
| + nested_generators_[i]->FillMessageForwardDeclarations(class_names);
|
| + }
|
| +}
|
|
|
| +void MessageGenerator::
|
| +FillEnumForwardDeclarations(set<string>* enum_names) {
|
| for (int i = 0; i < descriptor_->nested_type_count(); i++) {
|
| - nested_generators_[i]->GenerateForwardDeclaration(printer);
|
| + nested_generators_[i]->FillEnumForwardDeclarations(enum_names);
|
| + }
|
| + for (int i = 0; i < descriptor_->enum_type_count(); i++) {
|
| + enum_generators_[i]->FillForwardDeclaration(enum_names);
|
| }
|
| }
|
|
|
| @@ -351,6 +467,28 @@ GenerateGetEnumDescriptorSpecializations(io::Printer* printer) {
|
| }
|
|
|
| void MessageGenerator::
|
| +GenerateDependentFieldAccessorDeclarations(io::Printer* printer) {
|
| + for (int i = 0; i < descriptor_->field_count(); i++) {
|
| + const FieldDescriptor* field = descriptor_->field(i);
|
| +
|
| + PrintFieldComment(printer, field);
|
| +
|
| + map<string, string> vars;
|
| + SetCommonFieldVariables(field, &vars, options_);
|
| +
|
| + if (use_dependent_base_ && IsFieldDependent(field)) {
|
| + // If the message is dependent, the inline clear_*() method will need
|
| + // to delete the message type, so it must be in the dependent base
|
| + // class. (See also GenerateFieldAccessorDeclarations.)
|
| + printer->Print(vars, "void clear_$name$()$deprecation$;\n");
|
| + }
|
| + // Generate type-specific accessor declarations.
|
| + field_generators_.get(field).GenerateDependentAccessorDeclarations(printer);
|
| + printer->Print("\n");
|
| + }
|
| +}
|
| +
|
| +void MessageGenerator::
|
| GenerateFieldAccessorDeclarations(io::Printer* printer) {
|
| for (int i = 0; i < descriptor_->field_count(); i++) {
|
| const FieldDescriptor* field = descriptor_->field(i);
|
| @@ -361,13 +499,37 @@ GenerateFieldAccessorDeclarations(io::Printer* printer) {
|
| SetCommonFieldVariables(field, &vars, options_);
|
| vars["constant_name"] = FieldConstantName(field);
|
|
|
| + bool dependent_field = use_dependent_base_ && IsFieldDependent(field);
|
| + if (dependent_field &&
|
| + field->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE &&
|
| + !field->is_map()) {
|
| + // If this field is dependent, the dependent base class determines
|
| + // the message type from the derived class (which is a template
|
| + // parameter). This typedef is for that:
|
| + printer->Print(
|
| + "private:\n"
|
| + "typedef $field_type$ $dependent_type$;\n"
|
| + "public:\n",
|
| + "field_type", FieldMessageTypeName(field),
|
| + "dependent_type", DependentTypeName(field));
|
| + }
|
| +
|
| if (field->is_repeated()) {
|
| - printer->Print(vars, "inline int $name$_size() const$deprecation$;\n");
|
| - } else {
|
| - printer->Print(vars, "inline bool has_$name$() const$deprecation$;\n");
|
| + printer->Print(vars, "int $name$_size() const$deprecation$;\n");
|
| + } else if (HasHasMethod(field)) {
|
| + printer->Print(vars, "bool has_$name$() const$deprecation$;\n");
|
| + } else if (HasPrivateHasMethod(field)) {
|
| + printer->Print(vars,
|
| + "private:\n"
|
| + "bool has_$name$() const$deprecation$;\n"
|
| + "public:\n");
|
| }
|
|
|
| - printer->Print(vars, "inline void clear_$name$()$deprecation$;\n");
|
| + if (!dependent_field) {
|
| + // If this field is dependent, then its clear_() method is in the
|
| + // depenent base class. (See also GenerateDependentAccessorDeclarations.)
|
| + printer->Print(vars, "void clear_$name$()$deprecation$;\n");
|
| + }
|
| printer->Print(vars, "static const int $constant_name$ = $number$;\n");
|
|
|
| // Generate type-specific accessor declarations.
|
| @@ -383,10 +545,202 @@ GenerateFieldAccessorDeclarations(io::Printer* printer) {
|
| "GOOGLE_PROTOBUF_EXTENSION_ACCESSORS($classname$)\n",
|
| "classname", classname_);
|
| }
|
| +
|
| + for (int i = 0; i < descriptor_->oneof_decl_count(); i++) {
|
| + printer->Print(
|
| + "$camel_oneof_name$Case $oneof_name$_case() const;\n",
|
| + "camel_oneof_name",
|
| + UnderscoresToCamelCase(descriptor_->oneof_decl(i)->name(), true),
|
| + "oneof_name", descriptor_->oneof_decl(i)->name());
|
| + }
|
| +}
|
| +
|
| +void MessageGenerator::
|
| +GenerateDependentFieldAccessorDefinitions(io::Printer* printer) {
|
| + if (!use_dependent_base_) return;
|
| +
|
| + printer->Print("// $classname$\n\n", "classname",
|
| + DependentBaseClassTemplateName(descriptor_));
|
| +
|
| + for (int i = 0; i < descriptor_->field_count(); i++) {
|
| + const FieldDescriptor* field = descriptor_->field(i);
|
| +
|
| + PrintFieldComment(printer, field);
|
| +
|
| + // These functions are not really dependent: they are part of the
|
| + // (non-dependent) derived class. However, they need to live outside
|
| + // any #ifdef guards, so we treat them as if they were dependent.
|
| + //
|
| + // See the comment in FileGenerator::GenerateInlineFunctionDefinitions
|
| + // for a more complete explanation.
|
| + if (use_dependent_base_ && IsFieldDependent(field)) {
|
| + map<string, string> vars;
|
| + SetCommonFieldVariables(field, &vars, options_);
|
| + vars["inline"] = "inline ";
|
| + if (field->containing_oneof()) {
|
| + vars["field_name"] = UnderscoresToCamelCase(field->name(), true);
|
| + vars["oneof_name"] = field->containing_oneof()->name();
|
| + vars["oneof_index"] = SimpleItoa(field->containing_oneof()->index());
|
| + GenerateOneofMemberHasBits(field, vars, printer);
|
| + } else if (!field->is_repeated()) {
|
| + // There will be no header guard, so this always has to be inline.
|
| + GenerateSingularFieldHasBits(field, vars, printer);
|
| + }
|
| + // vars needed for clear_(), which is in the dependent base:
|
| + // (See also GenerateDependentFieldAccessorDeclarations.)
|
| + vars["tmpl"] = "template<class T>\n";
|
| + vars["dependent_classname"] =
|
| + DependentBaseClassTemplateName(descriptor_) + "<T>";
|
| + vars["this_message"] = DependentBaseDownCast();
|
| + vars["this_const_message"] = DependentBaseConstDownCast();
|
| + GenerateFieldClear(field, vars, printer);
|
| + }
|
| +
|
| + // Generate type-specific accessors.
|
| + field_generators_.get(field)
|
| + .GenerateDependentInlineAccessorDefinitions(printer);
|
| +
|
| + printer->Print("\n");
|
| + }
|
| +
|
| + // Generate has_$name$() and clear_has_$name$() functions for oneofs
|
| + // Similar to other has-bits, these must always be in the header if we
|
| + // are using a dependent base class.
|
| + GenerateOneofHasBits(printer, true /* is_inline */);
|
| +}
|
| +
|
| +void MessageGenerator::
|
| +GenerateSingularFieldHasBits(const FieldDescriptor* field,
|
| + map<string, string> vars,
|
| + io::Printer* printer) {
|
| + if (HasFieldPresence(descriptor_->file())) {
|
| + // N.B.: without field presence, we do not use has-bits or generate
|
| + // has_$name$() methods.
|
| + vars["has_array_index"] = SimpleItoa(field->index() / 32);
|
| + vars["has_mask"] = StrCat(strings::Hex(1u << (field->index() % 32),
|
| + strings::ZERO_PAD_8));
|
| + printer->Print(vars,
|
| + "$inline$"
|
| + "bool $classname$::has_$name$() const {\n"
|
| + " return (_has_bits_[$has_array_index$] & 0x$has_mask$u) != 0;\n"
|
| + "}\n"
|
| + "$inline$"
|
| + "void $classname$::set_has_$name$() {\n"
|
| + " _has_bits_[$has_array_index$] |= 0x$has_mask$u;\n"
|
| + "}\n"
|
| + "$inline$"
|
| + "void $classname$::clear_has_$name$() {\n"
|
| + " _has_bits_[$has_array_index$] &= ~0x$has_mask$u;\n"
|
| + "}\n");
|
| + } else {
|
| + // Message fields have a has_$name$() method.
|
| + if (field->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE) {
|
| + bool is_lazy = false;
|
| + if (is_lazy) {
|
| + printer->Print(vars,
|
| + "$inline$"
|
| + "bool $classname$::has_$name$() const {\n"
|
| + " return !$name$_.IsCleared();\n"
|
| + "}\n");
|
| + } else {
|
| + printer->Print(vars,
|
| + "$inline$"
|
| + "bool $classname$::has_$name$() const {\n"
|
| + " return !_is_default_instance_ && $name$_ != NULL;\n"
|
| + "}\n");
|
| + }
|
| + }
|
| + }
|
| +}
|
| +
|
| +void MessageGenerator::
|
| +GenerateOneofHasBits(io::Printer* printer, bool is_inline) {
|
| + for (int i = 0; i < descriptor_->oneof_decl_count(); i++) {
|
| + map<string, string> vars;
|
| + vars["oneof_name"] = descriptor_->oneof_decl(i)->name();
|
| + vars["oneof_index"] = SimpleItoa(descriptor_->oneof_decl(i)->index());
|
| + vars["cap_oneof_name"] =
|
| + ToUpper(descriptor_->oneof_decl(i)->name());
|
| + vars["classname"] = classname_;
|
| + vars["inline"] = (is_inline ? "inline " : "");
|
| + printer->Print(
|
| + vars,
|
| + "$inline$"
|
| + "bool $classname$::has_$oneof_name$() const {\n"
|
| + " return $oneof_name$_case() != $cap_oneof_name$_NOT_SET;\n"
|
| + "}\n"
|
| + "$inline$"
|
| + "void $classname$::clear_has_$oneof_name$() {\n"
|
| + " _oneof_case_[$oneof_index$] = $cap_oneof_name$_NOT_SET;\n"
|
| + "}\n");
|
| + }
|
| +}
|
| +
|
| +void MessageGenerator::
|
| +GenerateOneofMemberHasBits(const FieldDescriptor* field,
|
| + const map<string, string>& vars,
|
| + io::Printer* printer) {
|
| + // Singular field in a oneof
|
| + // N.B.: Without field presence, we do not use has-bits or generate
|
| + // has_$name$() methods, but oneofs still have set_has_$name$().
|
| + // Oneofs also have has_$name$() but only as a private helper
|
| + // method, so that generated code is slightly cleaner (vs. comparing
|
| + // _oneof_case_[index] against a constant everywhere).
|
| + printer->Print(vars,
|
| + "$inline$"
|
| + "bool $classname$::has_$name$() const {\n"
|
| + " return $oneof_name$_case() == k$field_name$;\n"
|
| + "}\n");
|
| + printer->Print(vars,
|
| + "$inline$"
|
| + "void $classname$::set_has_$name$() {\n"
|
| + " _oneof_case_[$oneof_index$] = k$field_name$;\n"
|
| + "}\n");
|
| +}
|
| +
|
| +void MessageGenerator::
|
| +GenerateFieldClear(const FieldDescriptor* field,
|
| + const map<string, string>& vars,
|
| + io::Printer* printer) {
|
| + // Generate clear_$name$() (See GenerateFieldAccessorDeclarations and
|
| + // GenerateDependentFieldAccessorDeclarations, $dependent_classname$ is
|
| + // set by the Generate*Definitions functions.)
|
| + printer->Print(vars,
|
| + "$tmpl$"
|
| + "$inline$"
|
| + "void $dependent_classname$::clear_$name$() {\n");
|
| +
|
| + printer->Indent();
|
| +
|
| + if (field->containing_oneof()) {
|
| + // Clear this field only if it is the active field in this oneof,
|
| + // otherwise ignore
|
| + printer->Print(vars,
|
| + "if ($this_message$has_$name$()) {\n");
|
| + printer->Indent();
|
| + field_generators_.get(field)
|
| + .GenerateClearingCode(printer);
|
| + printer->Print(vars,
|
| + "$this_message$clear_has_$oneof_name$();\n");
|
| + printer->Outdent();
|
| + printer->Print("}\n");
|
| + } else {
|
| + field_generators_.get(field)
|
| + .GenerateClearingCode(printer);
|
| + if (HasFieldPresence(descriptor_->file())) {
|
| + if (!field->is_repeated()) {
|
| + printer->Print(vars,
|
| + "$this_message$clear_has_$name$();\n");
|
| + }
|
| + }
|
| + }
|
| +
|
| + printer->Outdent();
|
| + printer->Print("}\n");
|
| }
|
|
|
| void MessageGenerator::
|
| -GenerateFieldAccessorDefinitions(io::Printer* printer) {
|
| +GenerateFieldAccessorDefinitions(io::Printer* printer, bool is_inline) {
|
| printer->Print("// $classname$\n\n", "classname", classname_);
|
|
|
| for (int i = 0; i < descriptor_->field_count(); i++) {
|
| @@ -396,75 +750,152 @@ GenerateFieldAccessorDefinitions(io::Printer* printer) {
|
|
|
| map<string, string> vars;
|
| SetCommonFieldVariables(field, &vars, options_);
|
| + vars["inline"] = is_inline ? "inline " : "";
|
| + if (use_dependent_base_ && IsFieldDependent(field)) {
|
| + vars["tmpl"] = "template<class T>\n";
|
| + vars["dependent_classname"] =
|
| + DependentBaseClassTemplateName(descriptor_) + "<T>";
|
| + vars["this_message"] = "reinterpret_cast<T*>(this)->";
|
| + vars["this_const_message"] = "reinterpret_cast<const T*>(this)->";
|
| + } else {
|
| + vars["tmpl"] = "";
|
| + vars["dependent_classname"] = vars["classname"];
|
| + vars["this_message"] = "";
|
| + vars["this_const_message"] = "";
|
| + }
|
|
|
| // Generate has_$name$() or $name$_size().
|
| if (field->is_repeated()) {
|
| printer->Print(vars,
|
| - "inline int $classname$::$name$_size() const {\n"
|
| + "$inline$"
|
| + "int $classname$::$name$_size() const {\n"
|
| " return $name$_.size();\n"
|
| "}\n");
|
| + } else if (field->containing_oneof()) {
|
| + vars["field_name"] = UnderscoresToCamelCase(field->name(), true);
|
| + vars["oneof_name"] = field->containing_oneof()->name();
|
| + vars["oneof_index"] = SimpleItoa(field->containing_oneof()->index());
|
| + if (!use_dependent_base_ || !IsFieldDependent(field)) {
|
| + GenerateOneofMemberHasBits(field, vars, printer);
|
| + }
|
| } else {
|
| // Singular field.
|
| - char buffer[kFastToBufferSize];
|
| - vars["has_array_index"] = SimpleItoa(field->index() / 32);
|
| - vars["has_mask"] = FastHex32ToBuffer(1u << (field->index() % 32), buffer);
|
| - printer->Print(vars,
|
| - "inline bool $classname$::has_$name$() const {\n"
|
| - " return (_has_bits_[$has_array_index$] & 0x$has_mask$u) != 0;\n"
|
| - "}\n"
|
| - "inline void $classname$::set_has_$name$() {\n"
|
| - " _has_bits_[$has_array_index$] |= 0x$has_mask$u;\n"
|
| - "}\n"
|
| - "inline void $classname$::clear_has_$name$() {\n"
|
| - " _has_bits_[$has_array_index$] &= ~0x$has_mask$u;\n"
|
| - "}\n"
|
| - );
|
| + if (!use_dependent_base_ || !IsFieldDependent(field)) {
|
| + GenerateSingularFieldHasBits(field, vars, printer);
|
| + }
|
| }
|
|
|
| - // Generate clear_$name$()
|
| - printer->Print(vars,
|
| - "inline void $classname$::clear_$name$() {\n");
|
| -
|
| - printer->Indent();
|
| - field_generators_.get(field).GenerateClearingCode(printer);
|
| - printer->Outdent();
|
| -
|
| - if (!field->is_repeated()) {
|
| - printer->Print(vars,
|
| - " clear_has_$name$();\n");
|
| + if (!use_dependent_base_ || !IsFieldDependent(field)) {
|
| + GenerateFieldClear(field, vars, printer);
|
| }
|
|
|
| - printer->Print("}\n");
|
| -
|
| // Generate type-specific accessors.
|
| - field_generators_.get(field).GenerateInlineAccessorDefinitions(printer);
|
| + field_generators_.get(field).GenerateInlineAccessorDefinitions(printer,
|
| + is_inline);
|
|
|
| printer->Print("\n");
|
| }
|
| +
|
| + if (!use_dependent_base_) {
|
| + // Generate has_$name$() and clear_has_$name$() functions for oneofs
|
| + // If we aren't using a dependent base, they can be with the other functions
|
| + // that are #ifdef-guarded.
|
| + GenerateOneofHasBits(printer, is_inline);
|
| + }
|
| +}
|
| +
|
| +// Helper for the code that emits the Clear() method.
|
| +static bool CanClearByZeroing(const FieldDescriptor* field) {
|
| + if (field->is_repeated() || field->is_extension()) return false;
|
| + switch (field->cpp_type()) {
|
| + case internal::WireFormatLite::CPPTYPE_ENUM:
|
| + return field->default_value_enum()->number() == 0;
|
| + case internal::WireFormatLite::CPPTYPE_INT32:
|
| + return field->default_value_int32() == 0;
|
| + case internal::WireFormatLite::CPPTYPE_INT64:
|
| + return field->default_value_int64() == 0;
|
| + case internal::WireFormatLite::CPPTYPE_UINT32:
|
| + return field->default_value_uint32() == 0;
|
| + case internal::WireFormatLite::CPPTYPE_UINT64:
|
| + return field->default_value_uint64() == 0;
|
| + case internal::WireFormatLite::CPPTYPE_FLOAT:
|
| + return field->default_value_float() == 0;
|
| + case internal::WireFormatLite::CPPTYPE_DOUBLE:
|
| + return field->default_value_double() == 0;
|
| + case internal::WireFormatLite::CPPTYPE_BOOL:
|
| + return field->default_value_bool() == false;
|
| + default:
|
| + return false;
|
| + }
|
| +}
|
| +
|
| +void MessageGenerator::
|
| +GenerateDependentBaseClassDefinition(io::Printer* printer) {
|
| + if (!use_dependent_base_) {
|
| + return;
|
| + }
|
| +
|
| + map<string, string> vars;
|
| + vars["classname"] = DependentBaseClassTemplateName(descriptor_);
|
| + vars["superclass"] = SuperClassName(descriptor_);
|
| +
|
| + printer->Print(vars,
|
| + "template <class T>\n"
|
| + "class $classname$ : public $superclass$ {\n"
|
| + " public:\n");
|
| + printer->Indent();
|
| +
|
| + printer->Print(vars,
|
| + "$classname$() {}\n"
|
| + "virtual ~$classname$() {}\n"
|
| + "\n");
|
| +
|
| + // Generate dependent accessor methods for all fields.
|
| + GenerateDependentFieldAccessorDeclarations(printer);
|
| +
|
| + printer->Outdent();
|
| + printer->Print("};\n");
|
| }
|
|
|
| void MessageGenerator::
|
| GenerateClassDefinition(io::Printer* printer) {
|
| for (int i = 0; i < descriptor_->nested_type_count(); i++) {
|
| + // map entry message doesn't need class definition. Since map entry message
|
| + // cannot be a top level class, we just need to avoid calling
|
| + // GenerateClassDefinition here.
|
| + if (IsMapEntryMessage(descriptor_->nested_type(i))) continue;
|
| nested_generators_[i]->GenerateClassDefinition(printer);
|
| printer->Print("\n");
|
| printer->Print(kThinSeparator);
|
| printer->Print("\n");
|
| }
|
|
|
| + if (use_dependent_base_) {
|
| + GenerateDependentBaseClassDefinition(printer);
|
| + printer->Print("\n");
|
| + }
|
| +
|
| map<string, string> vars;
|
| vars["classname"] = classname_;
|
| vars["field_count"] = SimpleItoa(descriptor_->field_count());
|
| + vars["oneof_decl_count"] = SimpleItoa(descriptor_->oneof_decl_count());
|
| if (options_.dllexport_decl.empty()) {
|
| vars["dllexport"] = "";
|
| } else {
|
| vars["dllexport"] = options_.dllexport_decl + " ";
|
| }
|
| - vars["superclass"] = SuperClassName(descriptor_);
|
| -
|
| + if (use_dependent_base_) {
|
| + vars["superclass"] =
|
| + DependentBaseClassTemplateName(descriptor_) + "<" + classname_ + ">";
|
| + } else {
|
| + vars["superclass"] = SuperClassName(descriptor_);
|
| + }
|
| printer->Print(vars,
|
| - "class $dllexport$$classname$ : public $superclass$ {\n"
|
| - " public:\n");
|
| + "class $dllexport$$classname$ : public $superclass$ {\n");
|
| + if (use_dependent_base_) {
|
| + printer->Print(vars, " friend class $superclass$;\n");
|
| + }
|
| + printer->Print(" public:\n");
|
| printer->Indent();
|
|
|
| printer->Print(vars,
|
| @@ -479,16 +910,58 @@ GenerateClassDefinition(io::Printer* printer) {
|
| "}\n"
|
| "\n");
|
|
|
| - if (HasUnknownFields(descriptor_->file())) {
|
| + if (PreserveUnknownFields(descriptor_)) {
|
| + if (UseUnknownFieldSet(descriptor_->file())) {
|
| + printer->Print(
|
| + "inline const ::google::protobuf::UnknownFieldSet& unknown_fields() const {\n"
|
| + " return _internal_metadata_.unknown_fields();\n"
|
| + "}\n"
|
| + "\n"
|
| + "inline ::google::protobuf::UnknownFieldSet* mutable_unknown_fields() {\n"
|
| + " return _internal_metadata_.mutable_unknown_fields();\n"
|
| + "}\n"
|
| + "\n");
|
| + } else {
|
| + if (SupportsArenas(descriptor_)) {
|
| + printer->Print(
|
| + "inline const ::std::string& unknown_fields() const {\n"
|
| + " return _unknown_fields_.Get(\n"
|
| + " &::google::protobuf::internal::GetEmptyStringAlreadyInited());\n"
|
| + "}\n"
|
| + "\n"
|
| + "inline ::std::string* mutable_unknown_fields() {\n"
|
| + " return _unknown_fields_.Mutable(\n"
|
| + " &::google::protobuf::internal::GetEmptyStringAlreadyInited(),\n"
|
| + " GetArenaNoVirtual());\n"
|
| + "}\n"
|
| + "\n");
|
| + } else {
|
| + printer->Print(
|
| + "inline const ::std::string& unknown_fields() const {\n"
|
| + " return _unknown_fields_.GetNoArena(\n"
|
| + " &::google::protobuf::internal::GetEmptyStringAlreadyInited());\n"
|
| + "}\n"
|
| + "\n"
|
| + "inline ::std::string* mutable_unknown_fields() {\n"
|
| + " return _unknown_fields_.MutableNoArena(\n"
|
| + " &::google::protobuf::internal::GetEmptyStringAlreadyInited());\n"
|
| + "}\n"
|
| + "\n");
|
| + }
|
| + }
|
| + }
|
| +
|
| + // N.B.: We exclude GetArena() when arena support is disabled, falling back on
|
| + // MessageLite's implementation which returns NULL rather than generating our
|
| + // own method which returns NULL, in order to reduce code size.
|
| + if (SupportsArenas(descriptor_)) {
|
| + // virtual method version of GetArenaNoVirtual(), required for generic dispatch given a
|
| + // MessageLite* (e.g., in RepeatedField::AddAllocated()).
|
| printer->Print(
|
| - "inline const ::google::protobuf::UnknownFieldSet& unknown_fields() const {\n"
|
| - " return _unknown_fields_;\n"
|
| - "}\n"
|
| - "\n"
|
| - "inline ::google::protobuf::UnknownFieldSet* mutable_unknown_fields() {\n"
|
| - " return &_unknown_fields_;\n"
|
| - "}\n"
|
| - "\n");
|
| + "inline ::google::protobuf::Arena* GetArena() const { return GetArenaNoVirtual(); }\n"
|
| + "inline void* GetMaybeArenaPointer() const {\n"
|
| + " return MaybeArenaPtr();\n"
|
| + "}\n");
|
| }
|
|
|
| // Only generate this member if it's not disabled.
|
| @@ -502,6 +975,33 @@ GenerateClassDefinition(io::Printer* printer) {
|
| "static const $classname$& default_instance();\n"
|
| "\n");
|
|
|
| + // Generate enum values for every field in oneofs. One list is generated for
|
| + // each oneof with an additional *_NOT_SET value.
|
| + for (int i = 0; i < descriptor_->oneof_decl_count(); i++) {
|
| + printer->Print(
|
| + "enum $camel_oneof_name$Case {\n",
|
| + "camel_oneof_name",
|
| + UnderscoresToCamelCase(descriptor_->oneof_decl(i)->name(), true));
|
| + printer->Indent();
|
| + for (int j = 0; j < descriptor_->oneof_decl(i)->field_count(); j++) {
|
| + printer->Print(
|
| + "k$field_name$ = $field_number$,\n",
|
| + "field_name",
|
| + UnderscoresToCamelCase(
|
| + descriptor_->oneof_decl(i)->field(j)->name(), true),
|
| + "field_number",
|
| + SimpleItoa(descriptor_->oneof_decl(i)->field(j)->number()));
|
| + }
|
| + printer->Print(
|
| + "$cap_oneof_name$_NOT_SET = 0,\n",
|
| + "cap_oneof_name",
|
| + ToUpper(descriptor_->oneof_decl(i)->name()));
|
| + printer->Outdent();
|
| + printer->Print(
|
| + "};\n"
|
| + "\n");
|
| + }
|
| +
|
| if (!StaticInitializersForced(descriptor_->file())) {
|
| printer->Print(vars,
|
| "#ifdef GOOGLE_PROTOBUF_NO_STATIC_INITIALIZER\n"
|
| @@ -517,12 +1017,31 @@ GenerateClassDefinition(io::Printer* printer) {
|
| }
|
|
|
|
|
| + if (SupportsArenas(descriptor_)) {
|
| + printer->Print(vars,
|
| + "void UnsafeArenaSwap($classname$* other);\n");
|
| + }
|
| +
|
| + if (IsAnyMessage(descriptor_)) {
|
| + printer->Print(vars,
|
| + "// implements Any -----------------------------------------------\n"
|
| + "\n"
|
| + "void PackFrom(const ::google::protobuf::Message& message);\n"
|
| + "bool UnpackTo(::google::protobuf::Message* message) const;\n"
|
| + "template<typename T> bool Is() const {\n"
|
| + " return _any_metadata_.Is<T>();\n"
|
| + "}\n"
|
| + "\n");
|
| + }
|
| +
|
| printer->Print(vars,
|
| - "void Swap($classname$* other);\n"
|
| + "GOOGLE_ATTRIBUTE_NOINLINE void Swap($classname$* other);\n"
|
| "\n"
|
| "// implements Message ----------------------------------------------\n"
|
| "\n"
|
| - "$classname$* New() const;\n");
|
| + "inline $classname$* New() const { return New(NULL); }\n"
|
| + "\n"
|
| + "$classname$* New(::google::protobuf::Arena* arena) const;\n");
|
|
|
| if (HasGeneratedMethods(descriptor_->file())) {
|
| if (HasDescriptorMethods(descriptor_->file())) {
|
| @@ -545,20 +1064,88 @@ GenerateClassDefinition(io::Printer* printer) {
|
| " ::google::protobuf::io::CodedInputStream* input);\n"
|
| "void SerializeWithCachedSizes(\n"
|
| " ::google::protobuf::io::CodedOutputStream* output) const;\n");
|
| + // DiscardUnknownFields() is implemented in message.cc using reflections. We
|
| + // need to implement this function in generated code for messages.
|
| + if (!UseUnknownFieldSet(descriptor_->file())) {
|
| + printer->Print(
|
| + "void DiscardUnknownFields();\n");
|
| + }
|
| if (HasFastArraySerialization(descriptor_->file())) {
|
| printer->Print(
|
| "::google::protobuf::uint8* SerializeWithCachedSizesToArray(::google::protobuf::uint8* output) const;\n");
|
| }
|
| }
|
|
|
| - printer->Print(vars,
|
| + // Check all FieldDescriptors including those in oneofs to estimate
|
| + // whether ::std::string is likely to be used, and depending on that
|
| + // estimate, set uses_string_ to true or false. That contols
|
| + // whether to force initialization of empty_string_ in SharedCtor().
|
| + // It's often advantageous to do so to keep "is empty_string_
|
| + // inited?" code from appearing all over the place.
|
| + vector<const FieldDescriptor*> descriptors;
|
| + for (int i = 0; i < descriptor_->field_count(); i++) {
|
| + descriptors.push_back(descriptor_->field(i));
|
| + }
|
| + for (int i = 0; i < descriptor_->oneof_decl_count(); i++) {
|
| + for (int j = 0; j < descriptor_->oneof_decl(i)->field_count(); j++) {
|
| + descriptors.push_back(descriptor_->oneof_decl(i)->field(j));
|
| + }
|
| + }
|
| + uses_string_ = false;
|
| + if (PreserveUnknownFields(descriptor_) &&
|
| + !UseUnknownFieldSet(descriptor_->file())) {
|
| + uses_string_ = true;
|
| + }
|
| + for (int i = 0; i < descriptors.size(); i++) {
|
| + const FieldDescriptor* field = descriptors[i];
|
| + if (field->cpp_type() == FieldDescriptor::CPPTYPE_STRING) {
|
| + switch (field->options().ctype()) {
|
| + default: uses_string_ = true; break;
|
| + }
|
| + }
|
| + }
|
| +
|
| + printer->Print(
|
| "int GetCachedSize() const { return _cached_size_; }\n"
|
| "private:\n"
|
| "void SharedCtor();\n"
|
| "void SharedDtor();\n"
|
| "void SetCachedSize(int size) const;\n"
|
| - "public:\n"
|
| - "\n");
|
| + "void InternalSwap($classname$* other);\n",
|
| + "classname", classname_);
|
| + if (SupportsArenas(descriptor_)) {
|
| + printer->Print(
|
| + "protected:\n"
|
| + "explicit $classname$(::google::protobuf::Arena* arena);\n"
|
| + "private:\n"
|
| + "static void ArenaDtor(void* object);\n"
|
| + "inline void RegisterArenaDtor(::google::protobuf::Arena* arena);\n",
|
| + "classname", classname_);
|
| + }
|
| +
|
| + if (UseUnknownFieldSet(descriptor_->file())) {
|
| + printer->Print(
|
| + "private:\n"
|
| + "inline ::google::protobuf::Arena* GetArenaNoVirtual() const {\n"
|
| + " return _internal_metadata_.arena();\n"
|
| + "}\n"
|
| + "inline void* MaybeArenaPtr() const {\n"
|
| + " return _internal_metadata_.raw_arena_ptr();\n"
|
| + "}\n"
|
| + "public:\n"
|
| + "\n");
|
| + } else {
|
| + printer->Print(
|
| + "private:\n"
|
| + "inline ::google::protobuf::Arena* GetArenaNoVirtual() const {\n"
|
| + " return _arena_ptr_;\n"
|
| + "}\n"
|
| + "inline ::google::protobuf::Arena* MaybeArenaPtr() const {\n"
|
| + " return _arena_ptr_;\n"
|
| + "}\n"
|
| + "public:\n"
|
| + "\n");
|
| + }
|
|
|
| if (HasDescriptorMethods(descriptor_->file())) {
|
| printer->Print(
|
| @@ -577,9 +1164,11 @@ GenerateClassDefinition(io::Printer* printer) {
|
| // Import all nested message classes into this class's scope with typedefs.
|
| for (int i = 0; i < descriptor_->nested_type_count(); i++) {
|
| const Descriptor* nested_type = descriptor_->nested_type(i);
|
| - printer->Print("typedef $nested_full_name$ $nested_name$;\n",
|
| - "nested_name", nested_type->name(),
|
| - "nested_full_name", ClassName(nested_type, false));
|
| + if (!IsMapEntryMessage(nested_type)) {
|
| + printer->Print("typedef $nested_full_name$ $nested_name$;\n",
|
| + "nested_name", nested_type->name(),
|
| + "nested_full_name", ClassName(nested_type, false));
|
| + }
|
| }
|
|
|
| if (descriptor_->nested_type_count() > 0) {
|
| @@ -618,17 +1207,64 @@ GenerateClassDefinition(io::Printer* printer) {
|
|
|
| for (int i = 0; i < descriptor_->field_count(); i++) {
|
| if (!descriptor_->field(i)->is_repeated()) {
|
| - printer->Print(
|
| - "inline void set_has_$name$();\n",
|
| - "name", FieldName(descriptor_->field(i)));
|
| - printer->Print(
|
| - "inline void clear_has_$name$();\n",
|
| - "name", FieldName(descriptor_->field(i)));
|
| + // set_has_***() generated in all proto1/2 code and in oneofs (only) for
|
| + // messages without true field presence.
|
| + if (HasFieldPresence(descriptor_->file()) ||
|
| + descriptor_->field(i)->containing_oneof()) {
|
| + printer->Print(
|
| + "inline void set_has_$name$();\n",
|
| + "name", FieldName(descriptor_->field(i)));
|
| + }
|
| + // clear_has_***() generated only for non-oneof fields
|
| + // in proto1/2.
|
| + if (!descriptor_->field(i)->containing_oneof() &&
|
| + HasFieldPresence(descriptor_->file())) {
|
| + printer->Print(
|
| + "inline void clear_has_$name$();\n",
|
| + "name", FieldName(descriptor_->field(i)));
|
| + }
|
| }
|
| }
|
| printer->Print("\n");
|
|
|
| - // To minimize padding, data members are divided into three sections:
|
| + // Generate oneof function declarations
|
| + for (int i = 0; i < descriptor_->oneof_decl_count(); i++) {
|
| + printer->Print(
|
| + "inline bool has_$oneof_name$() const;\n"
|
| + "void clear_$oneof_name$();\n"
|
| + "inline void clear_has_$oneof_name$();\n\n",
|
| + "oneof_name", descriptor_->oneof_decl(i)->name());
|
| + }
|
| +
|
| + if (HasGeneratedMethods(descriptor_->file()) &&
|
| + !descriptor_->options().message_set_wire_format() &&
|
| + num_required_fields_ > 1) {
|
| + printer->Print(
|
| + "// helper for ByteSize()\n"
|
| + "int RequiredFieldsByteSizeFallback() const;\n\n");
|
| + }
|
| +
|
| + // Prepare decls for _cached_size_ and _has_bits_. Their position in the
|
| + // output will be determined later.
|
| +
|
| + bool need_to_emit_cached_size = true;
|
| + // TODO(kenton): Make _cached_size_ an atomic<int> when C++ supports it.
|
| + const string cached_size_decl = "mutable int _cached_size_;\n";
|
| +
|
| + // TODO(jieluo) - Optimize _has_bits_ for repeated and oneof fields.
|
| + size_t sizeof_has_bits = (descriptor_->field_count() + 31) / 32 * 4;
|
| + if (descriptor_->field_count() == 0) {
|
| + // Zero-size arrays aren't technically allowed, and MSVC in particular
|
| + // doesn't like them. We still need to declare these arrays to make
|
| + // other code compile. Since this is an uncommon case, we'll just declare
|
| + // them with size 1 and waste some space. Oh well.
|
| + sizeof_has_bits = 4;
|
| + }
|
| + const string has_bits_decl = sizeof_has_bits == 0 ? "" :
|
| + "::google::protobuf::uint32 _has_bits_[" + SimpleItoa(sizeof_has_bits / 4) + "];\n";
|
| +
|
| +
|
| + // To minimize padding, data members are divided into three sections:
|
| // (1) members assumed to align to 8 bytes
|
| // (2) members corresponding to message fields, re-ordered to optimize
|
| // alignment.
|
| @@ -642,45 +1278,129 @@ GenerateClassDefinition(io::Printer* printer) {
|
| "\n");
|
| }
|
|
|
| - if (HasUnknownFields(descriptor_->file())) {
|
| + if (UseUnknownFieldSet(descriptor_->file())) {
|
| printer->Print(
|
| - "::google::protobuf::UnknownFieldSet _unknown_fields_;\n"
|
| + "::google::protobuf::internal::InternalMetadataWithArena _internal_metadata_;\n");
|
| + } else {
|
| + printer->Print(
|
| + "::google::protobuf::internal::ArenaStringPtr _unknown_fields_;\n"
|
| + "::google::protobuf::Arena* _arena_ptr_;\n"
|
| "\n");
|
| }
|
|
|
| + if (SupportsArenas(descriptor_)) {
|
| + printer->Print(
|
| + "friend class ::google::protobuf::Arena;\n"
|
| + "typedef void InternalArenaConstructable_;\n"
|
| + "typedef void DestructorSkippable_;\n");
|
| + }
|
| +
|
| + if (HasFieldPresence(descriptor_->file())) {
|
| + // _has_bits_ is frequently accessed, so to reduce code size and improve
|
| + // speed, it should be close to the start of the object. But, try not to
|
| + // waste space:_has_bits_ by itself always makes sense if its size is a
|
| + // multiple of 8, but, otherwise, maybe _has_bits_ and cached_size_ together
|
| + // will work well.
|
| + printer->Print(has_bits_decl.c_str());
|
| + if ((sizeof_has_bits % 8) != 0) {
|
| + printer->Print(cached_size_decl.c_str());
|
| + need_to_emit_cached_size = false;
|
| + }
|
| + } else {
|
| + // Without field presence, we need another way to disambiguate the default
|
| + // instance, because the default instance's submessage fields (if any) store
|
| + // pointers to the default instances of the submessages even when they
|
| + // aren't present. Alternatives to this approach might be to (i) use a
|
| + // tagged pointer on all message fields, setting a tag bit for "not really
|
| + // present, just default instance"; or (ii) comparing |this| against the
|
| + // return value from GeneratedMessageFactory::GetPrototype() in all
|
| + // has_$field$() calls. However, both of these options are much more
|
| + // expensive (in code size and CPU overhead) than just checking a field in
|
| + // the message. Long-term, the best solution would be to rearchitect the
|
| + // default instance design not to store pointers to submessage default
|
| + // instances, and have reflection get those some other way; but that change
|
| + // would have too much impact on proto2.
|
| + printer->Print(
|
| + "bool _is_default_instance_;\n");
|
| + }
|
| +
|
| // Field members:
|
|
|
| + // List fields which doesn't belong to any oneof
|
| vector<const FieldDescriptor*> fields;
|
| + hash_map<string, int> fieldname_to_chunk;
|
| for (int i = 0; i < descriptor_->field_count(); i++) {
|
| - fields.push_back(descriptor_->field(i));
|
| + if (!descriptor_->field(i)->containing_oneof()) {
|
| + const FieldDescriptor* field = descriptor_->field(i);
|
| + fields.push_back(field);
|
| + fieldname_to_chunk[FieldName(field)] = i / 8;
|
| + }
|
| }
|
| OptimizePadding(&fields);
|
| + // Emit some private and static members
|
| + runs_of_fields_ = vector< vector<string> >(1);
|
| for (int i = 0; i < fields.size(); ++i) {
|
| - field_generators_.get(fields[i]).GeneratePrivateMembers(printer);
|
| + const FieldDescriptor* field = fields[i];
|
| + const FieldGenerator& generator = field_generators_.get(field);
|
| + generator.GenerateStaticMembers(printer);
|
| + generator.GeneratePrivateMembers(printer);
|
| + if (CanClearByZeroing(field)) {
|
| + const string& fieldname = FieldName(field);
|
| + if (!runs_of_fields_.back().empty() &&
|
| + (fieldname_to_chunk[runs_of_fields_.back().back()] !=
|
| + fieldname_to_chunk[fieldname])) {
|
| + runs_of_fields_.push_back(vector<string>());
|
| + }
|
| + runs_of_fields_.back().push_back(fieldname);
|
| + } else if (!runs_of_fields_.back().empty()) {
|
| + runs_of_fields_.push_back(vector<string>());
|
| + }
|
| + }
|
| +
|
| + // For each oneof generate a union
|
| + for (int i = 0; i < descriptor_->oneof_decl_count(); i++) {
|
| + printer->Print(
|
| + "union $camel_oneof_name$Union {\n"
|
| + // explicit empty constructor is needed when union contains
|
| + // ArenaStringPtr members for string fields.
|
| + " $camel_oneof_name$Union() {}\n",
|
| + "camel_oneof_name",
|
| + UnderscoresToCamelCase(descriptor_->oneof_decl(i)->name(), true));
|
| + printer->Indent();
|
| + for (int j = 0; j < descriptor_->oneof_decl(i)->field_count(); j++) {
|
| + field_generators_.get(descriptor_->oneof_decl(i)->
|
| + field(j)).GeneratePrivateMembers(printer);
|
| + }
|
| + printer->Outdent();
|
| + printer->Print(
|
| + "} $oneof_name$_;\n",
|
| + "oneof_name", descriptor_->oneof_decl(i)->name());
|
| + for (int j = 0; j < descriptor_->oneof_decl(i)->field_count(); j++) {
|
| + field_generators_.get(descriptor_->oneof_decl(i)->
|
| + field(j)).GenerateStaticMembers(printer);
|
| + }
|
| }
|
|
|
| // Members assumed to align to 4 bytes:
|
|
|
| - // TODO(kenton): Make _cached_size_ an atomic<int> when C++ supports it.
|
| - printer->Print(
|
| - "\n"
|
| - "mutable int _cached_size_;\n");
|
| + if (need_to_emit_cached_size) {
|
| + printer->Print(cached_size_decl.c_str());
|
| + need_to_emit_cached_size = false;
|
| + }
|
|
|
| - // Generate _has_bits_.
|
| - if (descriptor_->field_count() > 0) {
|
| + // Generate _oneof_case_.
|
| + if (descriptor_->oneof_decl_count() > 0) {
|
| printer->Print(vars,
|
| - "::google::protobuf::uint32 _has_bits_[($field_count$ + 31) / 32];\n"
|
| - "\n");
|
| - } else {
|
| - // Zero-size arrays aren't technically allowed, and MSVC in particular
|
| - // doesn't like them. We still need to declare these arrays to make
|
| - // other code compile. Since this is an uncommon case, we'll just declare
|
| - // them with size 1 and waste some space. Oh well.
|
| - printer->Print(
|
| - "::google::protobuf::uint32 _has_bits_[1];\n"
|
| + "::google::protobuf::uint32 _oneof_case_[$oneof_decl_count$];\n"
|
| "\n");
|
| }
|
|
|
| + // Generate _any_metadata_ for the Any type.
|
| + if (IsAnyMessage(descriptor_)) {
|
| + printer->Print(vars,
|
| + "::google::protobuf::internal::AnyMetadata _any_metadata_;\n");
|
| + }
|
| +
|
| // Declare AddDescriptors(), BuildDescriptors(), and ShutdownFile() as
|
| // friends so that they can access private static variables like
|
| // default_instance_ and reflection_.
|
| @@ -710,26 +1430,92 @@ GenerateClassDefinition(io::Printer* printer) {
|
|
|
| printer->Outdent();
|
| printer->Print(vars, "};");
|
| + GOOGLE_DCHECK(!need_to_emit_cached_size);
|
| +}
|
| +
|
| +void MessageGenerator::
|
| +GenerateDependentInlineMethods(io::Printer* printer) {
|
| + for (int i = 0; i < descriptor_->nested_type_count(); i++) {
|
| + // map entry message doesn't need inline methods. Since map entry message
|
| + // cannot be a top level class, we just need to avoid calling
|
| + // GenerateInlineMethods here.
|
| + if (IsMapEntryMessage(descriptor_->nested_type(i))) continue;
|
| + nested_generators_[i]->GenerateDependentInlineMethods(printer);
|
| + printer->Print(kThinSeparator);
|
| + printer->Print("\n");
|
| + }
|
| +
|
| + GenerateDependentFieldAccessorDefinitions(printer);
|
| }
|
|
|
| void MessageGenerator::
|
| -GenerateInlineMethods(io::Printer* printer) {
|
| +GenerateInlineMethods(io::Printer* printer, bool is_inline) {
|
| for (int i = 0; i < descriptor_->nested_type_count(); i++) {
|
| - nested_generators_[i]->GenerateInlineMethods(printer);
|
| + // map entry message doesn't need inline methods. Since map entry message
|
| + // cannot be a top level class, we just need to avoid calling
|
| + // GenerateInlineMethods here.
|
| + if (IsMapEntryMessage(descriptor_->nested_type(i))) continue;
|
| + nested_generators_[i]->GenerateInlineMethods(printer, is_inline);
|
| printer->Print(kThinSeparator);
|
| printer->Print("\n");
|
| }
|
|
|
| - GenerateFieldAccessorDefinitions(printer);
|
| + GenerateFieldAccessorDefinitions(printer, is_inline);
|
| +
|
| + // Generate oneof_case() functions.
|
| + for (int i = 0; i < descriptor_->oneof_decl_count(); i++) {
|
| + map<string, string> vars;
|
| + vars["class_name"] = classname_;
|
| + vars["camel_oneof_name"] = UnderscoresToCamelCase(
|
| + descriptor_->oneof_decl(i)->name(), true);
|
| + vars["oneof_name"] = descriptor_->oneof_decl(i)->name();
|
| + vars["oneof_index"] = SimpleItoa(descriptor_->oneof_decl(i)->index());
|
| + vars["inline"] = is_inline ? "inline " : "";
|
| + printer->Print(
|
| + vars,
|
| + "$inline$"
|
| + "$class_name$::$camel_oneof_name$Case $class_name$::"
|
| + "$oneof_name$_case() const {\n"
|
| + " return $class_name$::$camel_oneof_name$Case("
|
| + "_oneof_case_[$oneof_index$]);\n"
|
| + "}\n");
|
| + }
|
| }
|
|
|
| void MessageGenerator::
|
| GenerateDescriptorDeclarations(io::Printer* printer) {
|
| - printer->Print(
|
| - "const ::google::protobuf::Descriptor* $name$_descriptor_ = NULL;\n"
|
| - "const ::google::protobuf::internal::GeneratedMessageReflection*\n"
|
| - " $name$_reflection_ = NULL;\n",
|
| - "name", classname_);
|
| + if (!IsMapEntryMessage(descriptor_)) {
|
| + printer->Print(
|
| + "const ::google::protobuf::Descriptor* $name$_descriptor_ = NULL;\n"
|
| + "const ::google::protobuf::internal::GeneratedMessageReflection*\n"
|
| + " $name$_reflection_ = NULL;\n",
|
| + "name", classname_);
|
| + } else {
|
| + printer->Print(
|
| + "const ::google::protobuf::Descriptor* $name$_descriptor_ = NULL;\n",
|
| + "name", classname_);
|
| + }
|
| +
|
| + // Generate oneof default instance for reflection usage.
|
| + if (descriptor_->oneof_decl_count() > 0) {
|
| + printer->Print("struct $name$OneofInstance {\n",
|
| + "name", classname_);
|
| + for (int i = 0; i < descriptor_->oneof_decl_count(); i++) {
|
| + for (int j = 0; j < descriptor_->oneof_decl(i)->field_count(); j++) {
|
| + const FieldDescriptor* field = descriptor_->oneof_decl(i)->field(j);
|
| + printer->Print(" ");
|
| + if (field->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE ||
|
| + (field->cpp_type() == FieldDescriptor::CPPTYPE_STRING &&
|
| + EffectiveStringCType(field) != FieldOptions::STRING)) {
|
| + printer->Print("const ");
|
| + }
|
| + field_generators_.get(field).GeneratePrivateMembers(printer);
|
| + }
|
| + }
|
| +
|
| + printer->Print("}* $name$_default_oneof_instance_ = NULL;\n",
|
| + "name", classname_);
|
| + }
|
|
|
| for (int i = 0; i < descriptor_->nested_type_count(); i++) {
|
| nested_generators_[i]->GenerateDescriptorDeclarations(printer);
|
| @@ -761,19 +1547,44 @@ GenerateDescriptorInitializer(io::Printer* printer, int index) {
|
| "$parent$_descriptor_->nested_type($index$);\n");
|
| }
|
|
|
| + if (IsMapEntryMessage(descriptor_)) return;
|
| +
|
| // Generate the offsets.
|
| GenerateOffsets(printer);
|
|
|
| + const bool pass_pool_and_factory = false;
|
| + vars["fn"] = pass_pool_and_factory ?
|
| + "new ::google::protobuf::internal::GeneratedMessageReflection" :
|
| + "::google::protobuf::internal::GeneratedMessageReflection"
|
| + "::NewGeneratedMessageReflection";
|
| // Construct the reflection object.
|
| printer->Print(vars,
|
| "$classname$_reflection_ =\n"
|
| - " new ::google::protobuf::internal::GeneratedMessageReflection(\n"
|
| + " $fn$(\n"
|
| " $classname$_descriptor_,\n"
|
| " $classname$::default_instance_,\n"
|
| - " $classname$_offsets_,\n"
|
| - " GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET($classname$, _has_bits_[0]),\n"
|
| + " $classname$_offsets_,\n");
|
| + if (!HasFieldPresence(descriptor_->file())) {
|
| + // If we don't have field presence, then _has_bits_ does not exist.
|
| + printer->Print(vars,
|
| + " -1,\n");
|
| + } else {
|
| + printer->Print(vars,
|
| + " GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET($classname$, _has_bits_[0]),\n");
|
| + }
|
| +
|
| + // Unknown field offset: either points to the unknown field set if embedded
|
| + // directly, or indicates that the unknown field set is stored as part of the
|
| + // internal metadata if not.
|
| + if (UseUnknownFieldSet(descriptor_->file())) {
|
| + printer->Print(vars,
|
| + " -1,\n");
|
| + } else {
|
| + printer->Print(vars,
|
| " GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET("
|
| "$classname$, _unknown_fields_),\n");
|
| + }
|
| +
|
| if (descriptor_->extension_range_count() > 0) {
|
| printer->Print(vars,
|
| " GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET("
|
| @@ -783,12 +1594,47 @@ GenerateDescriptorInitializer(io::Printer* printer, int index) {
|
| printer->Print(vars,
|
| " -1,\n");
|
| }
|
| - printer->Print(
|
| - " ::google::protobuf::DescriptorPool::generated_pool(),\n");
|
| - printer->Print(vars,
|
| - " ::google::protobuf::MessageFactory::generated_factory(),\n");
|
| +
|
| + if (descriptor_->oneof_decl_count() > 0) {
|
| + printer->Print(vars,
|
| + " $classname$_default_oneof_instance_,\n"
|
| + " GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET("
|
| + "$classname$, _oneof_case_[0]),\n");
|
| + }
|
| +
|
| + if (pass_pool_and_factory) {
|
| + printer->Print(
|
| + " ::google::protobuf::DescriptorPool::generated_pool(),\n");
|
| + printer->Print(vars,
|
| + " ::google::protobuf::MessageFactory::generated_factory(),\n");
|
| + }
|
| +
|
| printer->Print(vars,
|
| - " sizeof($classname$));\n");
|
| + " sizeof($classname$),\n");
|
| +
|
| + // Arena offset: either an offset to the metadata struct that contains the
|
| + // arena pointer and unknown field set (in a space-efficient way) if we use
|
| + // that implementation strategy, or an offset directly to the arena pointer if
|
| + // not (because e.g. we don't have an unknown field set).
|
| + if (UseUnknownFieldSet(descriptor_->file())) {
|
| + printer->Print(vars,
|
| + " GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET("
|
| + "$classname$, _internal_metadata_),\n");
|
| + } else {
|
| + printer->Print(vars,
|
| + " GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET("
|
| + "$classname$, _arena_),\n");
|
| + }
|
| +
|
| + // is_default_instance_ offset.
|
| + if (HasFieldPresence(descriptor_->file())) {
|
| + printer->Print(vars,
|
| + " -1);\n");
|
| + } else {
|
| + printer->Print(vars,
|
| + " GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET("
|
| + "$classname$, _is_default_instance_));\n");
|
| + }
|
|
|
| // Handle nested types.
|
| for (int i = 0; i < descriptor_->nested_type_count(); i++) {
|
| @@ -803,10 +1649,37 @@ GenerateDescriptorInitializer(io::Printer* printer, int index) {
|
| void MessageGenerator::
|
| GenerateTypeRegistrations(io::Printer* printer) {
|
| // Register this message type with the message factory.
|
| - printer->Print(
|
| - "::google::protobuf::MessageFactory::InternalRegisterGeneratedMessage(\n"
|
| - " $classname$_descriptor_, &$classname$::default_instance());\n",
|
| - "classname", classname_);
|
| + if (!IsMapEntryMessage(descriptor_)) {
|
| + printer->Print(
|
| + "::google::protobuf::MessageFactory::InternalRegisterGeneratedMessage(\n"
|
| + " $classname$_descriptor_, &$classname$::default_instance());\n",
|
| + "classname", classname_);
|
| + }
|
| + else {
|
| + map<string, string> vars;
|
| + CollectMapInfo(descriptor_, &vars);
|
| + vars["classname"] = classname_;
|
| +
|
| + const FieldDescriptor* val = descriptor_->FindFieldByName("value");
|
| + if (descriptor_->file()->syntax() == FileDescriptor::SYNTAX_PROTO2 &&
|
| + val->type() == FieldDescriptor::TYPE_ENUM) {
|
| + const EnumValueDescriptor* default_value = val->default_value_enum();
|
| + vars["default_enum_value"] = Int32ToString(default_value->number());
|
| + } else {
|
| + vars["default_enum_value"] = "0";
|
| + }
|
| +
|
| + printer->Print(vars,
|
| + "::google::protobuf::MessageFactory::InternalRegisterGeneratedMessage(\n"
|
| + " $classname$_descriptor_,\n"
|
| + " ::google::protobuf::internal::MapEntry<\n"
|
| + " $key$,\n"
|
| + " $val$,\n"
|
| + " $key_wire_type$,\n"
|
| + " $val_wire_type$,\n"
|
| + " $default_enum_value$>::CreateDefaultInstance(\n"
|
| + " $classname$_descriptor_));\n");
|
| + }
|
|
|
| // Handle nested types.
|
| for (int i = 0; i < descriptor_->nested_type_count(); i++) {
|
| @@ -823,6 +1696,8 @@ GenerateDefaultInstanceAllocator(io::Printer* printer) {
|
| .GenerateDefaultInstanceAllocator(printer);
|
| }
|
|
|
| + if (IsMapEntryMessage(descriptor_)) return;
|
| +
|
| // Construct the default instance. We can't call InitAsDefaultInstance() yet
|
| // because we need to make sure all default instances that this one might
|
| // depend on are constructed first.
|
| @@ -830,6 +1705,13 @@ GenerateDefaultInstanceAllocator(io::Printer* printer) {
|
| "$classname$::default_instance_ = new $classname$();\n",
|
| "classname", classname_);
|
|
|
| + if ((descriptor_->oneof_decl_count() > 0) &&
|
| + HasDescriptorMethods(descriptor_->file())) {
|
| + printer->Print(
|
| + "$classname$_default_oneof_instance_ = new $classname$OneofInstance();\n",
|
| + "classname", classname_);
|
| + }
|
| +
|
| // Handle nested types.
|
| for (int i = 0; i < descriptor_->nested_type_count(); i++) {
|
| nested_generators_[i]->GenerateDefaultInstanceAllocator(printer);
|
| @@ -850,6 +1732,10 @@ GenerateDefaultInstanceInitializer(io::Printer* printer) {
|
|
|
| // Handle nested types.
|
| for (int i = 0; i < descriptor_->nested_type_count(); i++) {
|
| + // map entry message doesn't need to initialize default instance manually.
|
| + // Since map entry message cannot be a top level class, we just need to
|
| + // avoid calling DefaultInstanceInitializer here.
|
| + if (IsMapEntryMessage(descriptor_->nested_type(i))) continue;
|
| nested_generators_[i]->GenerateDefaultInstanceInitializer(printer);
|
| }
|
| }
|
| @@ -861,6 +1747,11 @@ GenerateShutdownCode(io::Printer* printer) {
|
| "classname", classname_);
|
|
|
| if (HasDescriptorMethods(descriptor_->file())) {
|
| + if (descriptor_->oneof_decl_count() > 0) {
|
| + printer->Print(
|
| + "delete $classname$_default_oneof_instance_;\n",
|
| + "classname", classname_);
|
| + }
|
| printer->Print(
|
| "delete $classname$_reflection_;\n",
|
| "classname", classname_);
|
| @@ -874,17 +1765,35 @@ GenerateShutdownCode(io::Printer* printer) {
|
|
|
| // Handle nested types.
|
| for (int i = 0; i < descriptor_->nested_type_count(); i++) {
|
| + if (IsMapEntryMessage(descriptor_->nested_type(i))) continue;
|
| nested_generators_[i]->GenerateShutdownCode(printer);
|
| }
|
| }
|
|
|
| void MessageGenerator::
|
| GenerateClassMethods(io::Printer* printer) {
|
| + if (IsAnyMessage(descriptor_)) {
|
| + printer->Print(
|
| + "void $classname$::PackFrom(const ::google::protobuf::Message& message) {\n"
|
| + " _any_metadata_.PackFrom(message);\n"
|
| + "}\n"
|
| + "\n"
|
| + "bool $classname$::UnpackTo(::google::protobuf::Message* message) const {\n"
|
| + " return _any_metadata_.UnpackTo(message);\n"
|
| + "}\n"
|
| + "\n",
|
| + "classname", classname_);
|
| + }
|
| +
|
| for (int i = 0; i < descriptor_->enum_type_count(); i++) {
|
| enum_generators_[i]->GenerateMethods(printer);
|
| }
|
|
|
| for (int i = 0; i < descriptor_->nested_type_count(); i++) {
|
| + // map entry message doesn't need class methods. Since map entry message
|
| + // cannot be a top level class, we just need to avoid calling
|
| + // GenerateClassMethods here.
|
| + if (IsMapEntryMessage(descriptor_->nested_type(i))) continue;
|
| nested_generators_[i]->GenerateClassMethods(printer);
|
| printer->Print("\n");
|
| printer->Print(kThinSeparator);
|
| @@ -907,7 +1816,7 @@ GenerateClassMethods(io::Printer* printer) {
|
| "constant_name", FieldConstantName(field));
|
| }
|
| printer->Print(
|
| - "#endif // !_MSC_VER\n"
|
| + "#endif // !defined(_MSC_VER) || _MSC_VER >= 1900\n"
|
| "\n");
|
|
|
| // Define extension identifiers.
|
| @@ -918,6 +1827,11 @@ GenerateClassMethods(io::Printer* printer) {
|
| GenerateStructors(printer);
|
| printer->Print("\n");
|
|
|
| + if (descriptor_->oneof_decl_count() > 0) {
|
| + GenerateOneofClear(printer);
|
| + printer->Print("\n");
|
| + }
|
| +
|
| if (HasGeneratedMethods(descriptor_->file())) {
|
| GenerateClear(printer);
|
| printer->Print("\n");
|
| @@ -977,15 +1891,33 @@ GenerateOffsets(io::Printer* printer) {
|
| printer->Print(
|
| "static const int $classname$_offsets_[$field_count$] = {\n",
|
| "classname", classname_,
|
| - "field_count", SimpleItoa(max(1, descriptor_->field_count())));
|
| + "field_count", SimpleItoa(max(
|
| + 1, descriptor_->field_count() + descriptor_->oneof_decl_count())));
|
| printer->Indent();
|
|
|
| for (int i = 0; i < descriptor_->field_count(); i++) {
|
| const FieldDescriptor* field = descriptor_->field(i);
|
| + if (field->containing_oneof()) {
|
| + printer->Print(
|
| + "PROTO2_GENERATED_DEFAULT_ONEOF_FIELD_OFFSET("
|
| + "$classname$_default_oneof_instance_, $name$_),\n",
|
| + "classname", classname_,
|
| + "name", FieldName(field));
|
| + } else {
|
| + printer->Print(
|
| + "GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET($classname$, "
|
| + "$name$_),\n",
|
| + "classname", classname_,
|
| + "name", FieldName(field));
|
| + }
|
| + }
|
| +
|
| + for (int i = 0; i < descriptor_->oneof_decl_count(); i++) {
|
| + const OneofDescriptor* oneof = descriptor_->oneof_decl(i);
|
| printer->Print(
|
| "GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET($classname$, $name$_),\n",
|
| "classname", classname_,
|
| - "name", FieldName(field));
|
| + "name", oneof->name());
|
| }
|
|
|
| printer->Outdent();
|
| @@ -999,16 +1931,39 @@ GenerateSharedConstructorCode(io::Printer* printer) {
|
| "classname", classname_);
|
| printer->Indent();
|
|
|
| - printer->Print(
|
| - "_cached_size_ = 0;\n");
|
| + if (!HasFieldPresence(descriptor_->file())) {
|
| + printer->Print(
|
| + " _is_default_instance_ = false;\n");
|
| + }
|
| +
|
| + printer->Print(StrCat(
|
| + uses_string_ ? "::google::protobuf::internal::GetEmptyString();\n" : "",
|
| + "_cached_size_ = 0;\n").c_str());
|
| +
|
| + if (PreserveUnknownFields(descriptor_) &&
|
| + !UseUnknownFieldSet(descriptor_->file())) {
|
| + printer->Print(
|
| + "_unknown_fields_.UnsafeSetDefault(\n"
|
| + " &::google::protobuf::internal::GetEmptyStringAlreadyInited());\n");
|
| + }
|
|
|
| for (int i = 0; i < descriptor_->field_count(); i++) {
|
| - field_generators_.get(descriptor_->field(i))
|
| - .GenerateConstructorCode(printer);
|
| + if (!descriptor_->field(i)->containing_oneof()) {
|
| + field_generators_.get(descriptor_->field(i))
|
| + .GenerateConstructorCode(printer);
|
| + }
|
| }
|
|
|
| - printer->Print(
|
| - "::memset(_has_bits_, 0, sizeof(_has_bits_));\n");
|
| + if (HasFieldPresence(descriptor_->file())) {
|
| + printer->Print(
|
| + "::memset(_has_bits_, 0, sizeof(_has_bits_));\n");
|
| + }
|
| +
|
| + for (int i = 0; i < descriptor_->oneof_decl_count(); i++) {
|
| + printer->Print(
|
| + "clear_has_$oneof_name$();\n",
|
| + "oneof_name", descriptor_->oneof_decl(i)->name());
|
| + }
|
|
|
| printer->Outdent();
|
| printer->Print("}\n\n");
|
| @@ -1020,10 +1975,45 @@ GenerateSharedDestructorCode(io::Printer* printer) {
|
| "void $classname$::SharedDtor() {\n",
|
| "classname", classname_);
|
| printer->Indent();
|
| - // Write the destructors for each field.
|
| + if (SupportsArenas(descriptor_)) {
|
| + // Do nothing when the message is allocated in an arena.
|
| + printer->Print(
|
| + "if (GetArenaNoVirtual() != NULL) {\n"
|
| + " return;\n"
|
| + "}\n"
|
| + "\n");
|
| + }
|
| +
|
| + // Write the desctructor for _unknown_fields_ in lite runtime.
|
| + if (PreserveUnknownFields(descriptor_) &&
|
| + !UseUnknownFieldSet(descriptor_->file())) {
|
| + if (SupportsArenas(descriptor_)) {
|
| + printer->Print(
|
| + "_unknown_fields_.Destroy(\n"
|
| + " &::google::protobuf::internal::GetEmptyStringAlreadyInited(),\n"
|
| + " GetArenaNoVirtual());\n");
|
| + } else {
|
| + printer->Print(
|
| + "_unknown_fields_.DestroyNoArena(\n"
|
| + " &::google::protobuf::internal::GetEmptyStringAlreadyInited());\n");
|
| + }
|
| + }
|
| +
|
| + // Write the destructors for each field except oneof members.
|
| for (int i = 0; i < descriptor_->field_count(); i++) {
|
| - field_generators_.get(descriptor_->field(i))
|
| - .GenerateDestructorCode(printer);
|
| + if (!descriptor_->field(i)->containing_oneof()) {
|
| + field_generators_.get(descriptor_->field(i))
|
| + .GenerateDestructorCode(printer);
|
| + }
|
| + }
|
| +
|
| + // Generate code to destruct oneofs. Clearing should do the work.
|
| + for (int i = 0; i < descriptor_->oneof_decl_count(); i++) {
|
| + printer->Print(
|
| + "if (has_$oneof_name$()) {\n"
|
| + " clear_$oneof_name$();\n"
|
| + "}\n",
|
| + "oneof_name", descriptor_->oneof_decl(i)->name());
|
| }
|
|
|
| PrintHandlingOptionalStaticInitializers(
|
| @@ -1042,8 +2032,12 @@ GenerateSharedDestructorCode(io::Printer* printer) {
|
|
|
| if (!field->is_repeated() &&
|
| field->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE) {
|
| - printer->Print(" delete $name$_;\n",
|
| - "name", FieldName(field));
|
| + // Skip oneof members
|
| + if (!field->containing_oneof()) {
|
| + printer->Print(
|
| + " delete $name$_;\n",
|
| + "name", FieldName(field));
|
| + }
|
| }
|
| }
|
|
|
| @@ -1055,23 +2049,128 @@ GenerateSharedDestructorCode(io::Printer* printer) {
|
| }
|
|
|
| void MessageGenerator::
|
| +GenerateArenaDestructorCode(io::Printer* printer) {
|
| + // Generate the ArenaDtor() method. Track whether any fields actually produced
|
| + // code that needs to be called.
|
| + printer->Print(
|
| + "void $classname$::ArenaDtor(void* object) {\n",
|
| + "classname", classname_);
|
| + printer->Indent();
|
| +
|
| + // This code is placed inside a static method, rather than an ordinary one,
|
| + // since that simplifies Arena's destructor list (ordinary function pointers
|
| + // rather than member function pointers). _this is the object being
|
| + // destructed.
|
| + printer->Print(
|
| + "$classname$* _this = reinterpret_cast< $classname$* >(object);\n"
|
| + // avoid an "unused variable" warning in case no fields have dtor code.
|
| + "(void)_this;\n",
|
| + "classname", classname_);
|
| +
|
| + bool need_registration = false;
|
| + for (int i = 0; i < descriptor_->field_count(); i++) {
|
| + if (field_generators_.get(descriptor_->field(i))
|
| + .GenerateArenaDestructorCode(printer)) {
|
| + need_registration = true;
|
| + }
|
| + }
|
| + printer->Outdent();
|
| + printer->Print(
|
| + "}\n");
|
| +
|
| + if (need_registration) {
|
| + printer->Print(
|
| + "inline void $classname$::RegisterArenaDtor(::google::protobuf::Arena* arena) {\n"
|
| + " if (arena != NULL) {\n"
|
| + " arena->OwnCustomDestructor(this, &$classname$::ArenaDtor);\n"
|
| + " }\n"
|
| + "}\n",
|
| + "classname", classname_);
|
| + } else {
|
| + printer->Print(
|
| + "void $classname$::RegisterArenaDtor(::google::protobuf::Arena* arena) {\n"
|
| + "}\n",
|
| + "classname", classname_);
|
| + }
|
| +}
|
| +
|
| +void MessageGenerator::
|
| GenerateStructors(io::Printer* printer) {
|
| - string superclass = SuperClassName(descriptor_);
|
| + string superclass;
|
| + if (use_dependent_base_) {
|
| + superclass =
|
| + DependentBaseClassTemplateName(descriptor_) + "<" + classname_ + ">";
|
| + } else {
|
| + superclass = SuperClassName(descriptor_);
|
| + }
|
| + string initializer_with_arena = superclass + "()";
|
| +
|
| + if (descriptor_->extension_range_count() > 0) {
|
| + initializer_with_arena += ",\n _extensions_(arena)";
|
| + }
|
| +
|
| + if (UseUnknownFieldSet(descriptor_->file())) {
|
| + initializer_with_arena += ",\n _internal_metadata_(arena)";
|
| + } else {
|
| + initializer_with_arena += ",\n _arena_ptr_(arena)";
|
| + }
|
| +
|
| + // Initialize member variables with arena constructor.
|
| + for (int i = 0; i < descriptor_->field_count(); i++) {
|
| + bool has_arena_constructor = descriptor_->field(i)->is_repeated();
|
| + if (has_arena_constructor) {
|
| + initializer_with_arena += string(",\n ") +
|
| + FieldName(descriptor_->field(i)) + string("_(arena)");
|
| + }
|
| + }
|
| +
|
| + if (IsAnyMessage(descriptor_)) {
|
| + initializer_with_arena += ",\n _any_metadata_(&type_url, &value_)";
|
| + }
|
| +
|
| + string initializer_null;
|
| + initializer_null = (UseUnknownFieldSet(descriptor_->file()) ?
|
| + ", _internal_metadata_(NULL)" : ", _arena_ptr_(NULL)");
|
| + if (IsAnyMessage(descriptor_)) {
|
| + initializer_null += ", _any_metadata_(&type_url_, &value_)";
|
| + }
|
|
|
| - // Generate the default constructor.
|
| printer->Print(
|
| - "$classname$::$classname$()\n"
|
| - " : $superclass$() {\n"
|
| - " SharedCtor();\n"
|
| - "}\n",
|
| - "classname", classname_,
|
| - "superclass", superclass);
|
| + "$classname$::$classname$()\n"
|
| + " : $superclass$()$initializer$ {\n"
|
| + " SharedCtor();\n"
|
| + " // @@protoc_insertion_point(constructor:$full_name$)\n"
|
| + "}\n",
|
| + "classname", classname_,
|
| + "superclass", superclass,
|
| + "full_name", descriptor_->full_name(),
|
| + "initializer", initializer_null);
|
| +
|
| + if (SupportsArenas(descriptor_)) {
|
| + printer->Print(
|
| + "\n"
|
| + "$classname$::$classname$(::google::protobuf::Arena* arena)\n"
|
| + " : $initializer$ {\n"
|
| + " SharedCtor();\n"
|
| + " RegisterArenaDtor(arena);\n"
|
| + " // @@protoc_insertion_point(arena_constructor:$full_name$)\n"
|
| + "}\n",
|
| + "initializer", initializer_with_arena,
|
| + "classname", classname_,
|
| + "superclass", superclass,
|
| + "full_name", descriptor_->full_name());
|
| + }
|
|
|
| printer->Print(
|
| "\n"
|
| "void $classname$::InitAsDefaultInstance() {\n",
|
| "classname", classname_);
|
|
|
| + if (!HasFieldPresence(descriptor_->file())) {
|
| + printer->Print(
|
| + " _is_default_instance_ = true;\n");
|
| + }
|
| +
|
| // The default instance needs all of its embedded message pointers
|
| // cross-linked to other default instances. We can't do this initialization
|
| // in the constructor because some other default instances may not have been
|
| @@ -1082,7 +2181,14 @@ GenerateStructors(io::Printer* printer) {
|
| const FieldDescriptor* field = descriptor_->field(i);
|
|
|
| if (!field->is_repeated() &&
|
| - field->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE) {
|
| + field->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE &&
|
| + (field->containing_oneof() == NULL ||
|
| + HasDescriptorMethods(descriptor_->file()))) {
|
| + string name;
|
| + if (field->containing_oneof()) {
|
| + name = classname_ + "_default_oneof_instance_->";
|
| + }
|
| + name += FieldName(field);
|
| PrintHandlingOptionalStaticInitializers(
|
| descriptor_->file(), printer,
|
| // With static initializers.
|
| @@ -1091,8 +2197,12 @@ GenerateStructors(io::Printer* printer) {
|
| " $name$_ = const_cast< $type$*>(\n"
|
| " $type$::internal_default_instance());\n",
|
| // Vars.
|
| - "name", FieldName(field),
|
| + "name", name,
|
| "type", FieldMessageTypeName(field));
|
| + } else if (field->containing_oneof() &&
|
| + HasDescriptorMethods(descriptor_->file())) {
|
| + field_generators_.get(descriptor_->field(i))
|
| + .GenerateConstructorCode(printer);
|
| }
|
| }
|
| printer->Print(
|
| @@ -1102,13 +2212,29 @@ GenerateStructors(io::Printer* printer) {
|
| // Generate the copy constructor.
|
| printer->Print(
|
| "$classname$::$classname$(const $classname$& from)\n"
|
| - " : $superclass$() {\n"
|
| + " : $superclass$()",
|
| + "classname", classname_,
|
| + "superclass", superclass,
|
| + "full_name", descriptor_->full_name());
|
| + if (UseUnknownFieldSet(descriptor_->file())) {
|
| + printer->Print(
|
| + ",\n _internal_metadata_(NULL)");
|
| + } else if (!UseUnknownFieldSet(descriptor_->file())) {
|
| + printer->Print(",\n _arena_ptr_(NULL)");
|
| + }
|
| + if (IsAnyMessage(descriptor_)) {
|
| + printer->Print(",\n _any_metadata_(&type_url_, &value_)");
|
| + }
|
| + printer->Print(" {\n");
|
| + printer->Print(
|
| " SharedCtor();\n"
|
| " MergeFrom(from);\n"
|
| + " // @@protoc_insertion_point(copy_constructor:$full_name$)\n"
|
| "}\n"
|
| "\n",
|
| "classname", classname_,
|
| - "superclass", superclass);
|
| + "superclass", superclass,
|
| + "full_name", descriptor_->full_name());
|
|
|
| // Generate the shared constructor code.
|
| GenerateSharedConstructorCode(printer);
|
| @@ -1116,14 +2242,21 @@ GenerateStructors(io::Printer* printer) {
|
| // Generate the destructor.
|
| printer->Print(
|
| "$classname$::~$classname$() {\n"
|
| + " // @@protoc_insertion_point(destructor:$full_name$)\n"
|
| " SharedDtor();\n"
|
| "}\n"
|
| "\n",
|
| - "classname", classname_);
|
| + "classname", classname_,
|
| + "full_name", descriptor_->full_name());
|
|
|
| // Generate the shared destructor code.
|
| GenerateSharedDestructorCode(printer);
|
|
|
| + // Generate the arena-specific destructor code.
|
| + if (SupportsArenas(descriptor_)) {
|
| + GenerateArenaDestructorCode(printer);
|
| + }
|
| +
|
| // Generate SetCachedSize.
|
| printer->Print(
|
| "void $classname$::SetCachedSize(int size) const {\n"
|
| @@ -1166,13 +2299,37 @@ GenerateStructors(io::Printer* printer) {
|
| "}\n"
|
| "\n"
|
| "$classname$* $classname$::default_instance_ = NULL;\n"
|
| - "\n"
|
| - "$classname$* $classname$::New() const {\n"
|
| - " return new $classname$;\n"
|
| - "}\n",
|
| - "classname", classname_,
|
| - "adddescriptorsname",
|
| - GlobalAddDescriptorsName(descriptor_->file()->name()));
|
| + "\n",
|
| + "classname", classname_);
|
| +
|
| + if (SupportsArenas(descriptor_)) {
|
| + printer->Print(
|
| + "$classname$* $classname$::New(::google::protobuf::Arena* arena) const {\n"
|
| + " return ::google::protobuf::Arena::CreateMessage<$classname$>(arena);\n"
|
| + "}\n",
|
| + "classname", classname_);
|
| + } else {
|
| + printer->Print(
|
| + "$classname$* $classname$::New(::google::protobuf::Arena* arena) const {\n"
|
| + " $classname$* n = new $classname$;\n"
|
| + " if (arena != NULL) {\n"
|
| + " arena->Own(n);\n"
|
| + " }\n"
|
| + " return n;\n"
|
| + "}\n",
|
| + "classname", classname_);
|
| + }
|
| +
|
| +}
|
| +
|
| +// Return the number of bits set in n, a non-negative integer.
|
| +static int popcnt(uint32 n) {
|
| + int result = 0;
|
| + while (n != 0) {
|
| + result += (n & 1);
|
| + n = n / 2;
|
| + }
|
| + return result;
|
| }
|
|
|
| void MessageGenerator::
|
| @@ -1181,92 +2338,284 @@ GenerateClear(io::Printer* printer) {
|
| "classname", classname_);
|
| printer->Indent();
|
|
|
| - int last_index = -1;
|
| -
|
| + // Step 1: Extensions
|
| if (descriptor_->extension_range_count() > 0) {
|
| printer->Print("_extensions_.Clear();\n");
|
| }
|
|
|
| + // Step 2: Everything but extensions, repeateds, unions.
|
| + // These are handled in chunks of 8. The first chunk is
|
| + // the non-extensions-non-repeateds-non-unions in
|
| + // descriptor_->field(0), descriptor_->field(1), ... descriptor_->field(7),
|
| + // and the second chunk is the same for
|
| + // descriptor_->field(8), descriptor_->field(9), ... descriptor_->field(15),
|
| + // etc.
|
| + set<int> step2_indices;
|
| + hash_map<string, int> fieldname_to_chunk;
|
| + hash_map<int, string> memsets_for_chunk;
|
| + hash_map<int, int> memset_field_count_for_chunk;
|
| + hash_set<string> handled; // fields that appear anywhere in memsets_for_chunk
|
| + hash_map<int, uint32> fields_mask_for_chunk;
|
| for (int i = 0; i < descriptor_->field_count(); i++) {
|
| const FieldDescriptor* field = descriptor_->field(i);
|
| + if (!field->is_repeated() && !field->containing_oneof()) {
|
| + step2_indices.insert(i);
|
| + int chunk = i / 8;
|
| + fieldname_to_chunk[FieldName(field)] = chunk;
|
| + fields_mask_for_chunk[chunk] |= static_cast<uint32>(1) << (i % 32);
|
| + }
|
| + }
|
|
|
| - if (!field->is_repeated()) {
|
| - // We can use the fact that _has_bits_ is a giant bitfield to our
|
| - // advantage: We can check up to 32 bits at a time for equality to
|
| - // zero, and skip the whole range if so. This can improve the speed
|
| - // of Clear() for messages which contain a very large number of
|
| - // optional fields of which only a few are used at a time. Here,
|
| - // we've chosen to check 8 bits at a time rather than 32.
|
| - if (i / 8 != last_index / 8 || last_index < 0) {
|
| - if (last_index >= 0) {
|
| - printer->Outdent();
|
| - printer->Print("}\n");
|
| - }
|
| - printer->Print(
|
| - "if (_has_bits_[$index$ / 32] & (0xffu << ($index$ % 32))) {\n",
|
| - "index", SimpleItoa(field->index()));
|
| - printer->Indent();
|
| + // Step 2a: Greedily seek runs of fields that can be cleared by memset-to-0.
|
| + // The generated code uses two macros to help it clear runs of fields:
|
| + // ZR_HELPER_(f1) - ZR_HELPER_(f0) computes the difference, in bytes, of the
|
| + // positions of two fields in the Message.
|
| + // ZR_ zeroes a non-empty range of fields via memset.
|
| + const char* macros =
|
| + "#define ZR_HELPER_(f) reinterpret_cast<char*>(\\\n"
|
| + " &reinterpret_cast<$classname$*>(16)->f)\n\n"
|
| + "#define ZR_(first, last) do {\\\n"
|
| + " ::memset(&first, 0,\\\n"
|
| + " ZR_HELPER_(last) - ZR_HELPER_(first) + sizeof(last));\\\n"
|
| + "} while (0)\n\n";
|
| + for (int i = 0; i < runs_of_fields_.size(); i++) {
|
| + const vector<string>& run = runs_of_fields_[i];
|
| + if (run.size() < 2) continue;
|
| + const string& first_field_name = run[0];
|
| + const string& last_field_name = run.back();
|
| + int chunk = fieldname_to_chunk[run[0]];
|
| + memsets_for_chunk[chunk].append(
|
| + "ZR_(" + first_field_name + "_, " + last_field_name + "_);\n");
|
| + for (int j = 0; j < run.size(); j++) {
|
| + GOOGLE_DCHECK_EQ(chunk, fieldname_to_chunk[run[j]]);
|
| + handled.insert(run[j]);
|
| + }
|
| + memset_field_count_for_chunk[chunk] += run.size();
|
| + }
|
| + const bool macros_are_needed = handled.size() > 0;
|
| + if (macros_are_needed) {
|
| + printer->Outdent();
|
| + printer->Print(macros,
|
| + "classname", classname_);
|
| + printer->Indent();
|
| + }
|
| + // Step 2b: Finish step 2, ignoring fields handled in step 2a.
|
| + int last_index = -1;
|
| + bool chunk_block_in_progress = false;
|
| + for (int i = 0; i < descriptor_->field_count(); i++) {
|
| + if (step2_indices.count(i) == 0) continue;
|
| + const FieldDescriptor* field = descriptor_->field(i);
|
| + const string fieldname = FieldName(field);
|
| + if (i / 8 != last_index / 8 || last_index < 0) {
|
| + // End previous chunk, if there was one.
|
| + if (chunk_block_in_progress) {
|
| + printer->Outdent();
|
| + printer->Print("}\n");
|
| + chunk_block_in_progress = false;
|
| }
|
| - last_index = i;
|
| -
|
| - // It's faster to just overwrite primitive types, but we should
|
| - // only clear strings and messages if they were set.
|
| - // TODO(kenton): Let the CppFieldGenerator decide this somehow.
|
| - bool should_check_bit =
|
| - field->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE ||
|
| - field->cpp_type() == FieldDescriptor::CPPTYPE_STRING;
|
| -
|
| - if (should_check_bit) {
|
| - printer->Print(
|
| - "if (has_$name$()) {\n",
|
| - "name", FieldName(field));
|
| - printer->Indent();
|
| + // Start chunk.
|
| + const string& memsets = memsets_for_chunk[i / 8];
|
| + uint32 mask = fields_mask_for_chunk[i / 8];
|
| + int count = popcnt(mask);
|
| + GOOGLE_DCHECK_GE(count, 1);
|
| + if (count == 1 ||
|
| + (count <= 4 && count == memset_field_count_for_chunk[i / 8])) {
|
| + // No "if" here because the chunk is trivial.
|
| + } else {
|
| + if (HasFieldPresence(descriptor_->file())) {
|
| + printer->Print(
|
| + "if (_has_bits_[$index$ / 32] & $mask$u) {\n",
|
| + "index", SimpleItoa(i / 8 * 8),
|
| + "mask", SimpleItoa(mask));
|
| + printer->Indent();
|
| + chunk_block_in_progress = true;
|
| + }
|
| }
|
| + printer->Print(memsets.c_str());
|
| + }
|
| + last_index = i;
|
| + if (handled.count(fieldname) > 0) continue;
|
| +
|
| + // It's faster to just overwrite primitive types, but we should
|
| + // only clear strings and messages if they were set.
|
| + // TODO(kenton): Let the CppFieldGenerator decide this somehow.
|
| + bool should_check_bit =
|
| + field->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE ||
|
| + field->cpp_type() == FieldDescriptor::CPPTYPE_STRING;
|
| +
|
| + bool have_enclosing_if = false;
|
| + if (should_check_bit &&
|
| + // If no field presence, then always clear strings/messages as well.
|
| + HasFieldPresence(descriptor_->file())) {
|
| + printer->Print("if (has_$name$()) {\n", "name", fieldname);
|
| + printer->Indent();
|
| + have_enclosing_if = true;
|
| + }
|
|
|
| + if (use_dependent_base_ && IsFieldDependent(field)) {
|
| + printer->Print("clear_$name$();\n", "name", fieldname);
|
| + } else {
|
| field_generators_.get(field).GenerateClearingCode(printer);
|
| + }
|
|
|
| - if (should_check_bit) {
|
| - printer->Outdent();
|
| - printer->Print("}\n");
|
| - }
|
| + if (have_enclosing_if) {
|
| + printer->Outdent();
|
| + printer->Print("}\n");
|
| }
|
| }
|
|
|
| - if (last_index >= 0) {
|
| + if (chunk_block_in_progress) {
|
| printer->Outdent();
|
| printer->Print("}\n");
|
| }
|
| + if (macros_are_needed) {
|
| + printer->Outdent();
|
| + printer->Print("\n#undef ZR_HELPER_\n#undef ZR_\n\n");
|
| + printer->Indent();
|
| + }
|
|
|
| - // Repeated fields don't use _has_bits_ so we clear them in a separate
|
| - // pass.
|
| + // Step 3: Repeated fields don't use _has_bits_; emit code to clear them here.
|
| for (int i = 0; i < descriptor_->field_count(); i++) {
|
| const FieldDescriptor* field = descriptor_->field(i);
|
|
|
| if (field->is_repeated()) {
|
| - field_generators_.get(field).GenerateClearingCode(printer);
|
| + if (use_dependent_base_ && IsFieldDependent(field)) {
|
| + printer->Print("clear_$name$();\n", "name", FieldName(field));
|
| + } else {
|
| + field_generators_.get(field).GenerateClearingCode(printer);
|
| + }
|
| + }
|
| + }
|
| +
|
| + // Step 4: Unions.
|
| + for (int i = 0; i < descriptor_->oneof_decl_count(); i++) {
|
| + printer->Print(
|
| + "clear_$oneof_name$();\n",
|
| + "oneof_name", descriptor_->oneof_decl(i)->name());
|
| + }
|
| +
|
| + if (HasFieldPresence(descriptor_->file())) {
|
| + // Step 5: Everything else.
|
| + printer->Print(
|
| + "::memset(_has_bits_, 0, sizeof(_has_bits_));\n");
|
| + }
|
| +
|
| + if (PreserveUnknownFields(descriptor_)) {
|
| + if (UseUnknownFieldSet(descriptor_->file())) {
|
| + printer->Print(
|
| + "if (_internal_metadata_.have_unknown_fields()) {\n"
|
| + " mutable_unknown_fields()->Clear();\n"
|
| + "}\n");
|
| + } else {
|
| + if (SupportsArenas(descriptor_)) {
|
| + printer->Print(
|
| + "_unknown_fields_.ClearToEmpty(\n"
|
| + " &::google::protobuf::internal::GetEmptyStringAlreadyInited(),\n"
|
| + " GetArenaNoVirtual());\n");
|
| + } else {
|
| + printer->Print(
|
| + "_unknown_fields_.ClearToEmptyNoArena(\n"
|
| + " &::google::protobuf::internal::GetEmptyStringAlreadyInited());\n");
|
| + }
|
| + }
|
| + }
|
| +
|
| + printer->Outdent();
|
| + printer->Print("}\n");
|
| +}
|
| +
|
| +void MessageGenerator::
|
| +GenerateOneofClear(io::Printer* printer) {
|
| + // Generated function clears the active field and union case (e.g. foo_case_).
|
| + for (int i = 0; i < descriptor_->oneof_decl_count(); i++) {
|
| + map<string, string> oneof_vars;
|
| + oneof_vars["classname"] = classname_;
|
| + oneof_vars["oneofname"] = descriptor_->oneof_decl(i)->name();
|
| + string message_class;
|
| +
|
| + printer->Print(oneof_vars,
|
| + "void $classname$::clear_$oneofname$() {\n");
|
| + printer->Indent();
|
| + printer->Print(oneof_vars,
|
| + "switch($oneofname$_case()) {\n");
|
| + printer->Indent();
|
| + for (int j = 0; j < descriptor_->oneof_decl(i)->field_count(); j++) {
|
| + const FieldDescriptor* field = descriptor_->oneof_decl(i)->field(j);
|
| + printer->Print(
|
| + "case k$field_name$: {\n",
|
| + "field_name", UnderscoresToCamelCase(field->name(), true));
|
| + printer->Indent();
|
| + // We clear only allocated objects in oneofs
|
| + if (!IsStringOrMessage(field)) {
|
| + printer->Print(
|
| + "// No need to clear\n");
|
| + } else {
|
| + field_generators_.get(field).GenerateClearingCode(printer);
|
| + }
|
| + printer->Print(
|
| + "break;\n");
|
| + printer->Outdent();
|
| + printer->Print(
|
| + "}\n");
|
| }
|
| - }
|
| -
|
| - printer->Print(
|
| - "::memset(_has_bits_, 0, sizeof(_has_bits_));\n");
|
| -
|
| - if (HasUnknownFields(descriptor_->file())) {
|
| printer->Print(
|
| - "mutable_unknown_fields()->Clear();\n");
|
| + "case $cap_oneof_name$_NOT_SET: {\n"
|
| + " break;\n"
|
| + "}\n",
|
| + "cap_oneof_name",
|
| + ToUpper(descriptor_->oneof_decl(i)->name()));
|
| + printer->Outdent();
|
| + printer->Print(
|
| + "}\n"
|
| + "_oneof_case_[$oneof_index$] = $cap_oneof_name$_NOT_SET;\n",
|
| + "oneof_index", SimpleItoa(i),
|
| + "cap_oneof_name",
|
| + ToUpper(descriptor_->oneof_decl(i)->name()));
|
| + printer->Outdent();
|
| + printer->Print(
|
| + "}\n"
|
| + "\n");
|
| }
|
| -
|
| - printer->Outdent();
|
| - printer->Print("}\n");
|
| }
|
|
|
| void MessageGenerator::
|
| GenerateSwap(io::Printer* printer) {
|
| - // Generate the Swap member function.
|
| - printer->Print("void $classname$::Swap($classname$* other) {\n",
|
| + if (SupportsArenas(descriptor_)) {
|
| + // Generate the Swap member function. This is a lightweight wrapper around
|
| + // UnsafeArenaSwap() / MergeFrom() with temporaries, depending on the memory
|
| + // ownership situation: swapping across arenas or between an arena and a
|
| + // heap requires copying.
|
| + printer->Print(
|
| + "GOOGLE_ATTRIBUTE_NOINLINE void $classname$::Swap($classname$* other) {\n"
|
| + " if (other == this) return;\n"
|
| + " if (GetArenaNoVirtual() == other->GetArenaNoVirtual()) {\n"
|
| + " InternalSwap(other);\n"
|
| + " } else {\n"
|
| + " $classname$ temp;\n"
|
| + " temp.MergeFrom(*this);\n"
|
| + " CopyFrom(*other);\n"
|
| + " other->CopyFrom(temp);\n"
|
| + " }\n"
|
| + "}\n"
|
| + "void $classname$::UnsafeArenaSwap($classname$* other) {\n"
|
| + " if (other == this) return;\n"
|
| + " GOOGLE_DCHECK(GetArenaNoVirtual() == other->GetArenaNoVirtual());\n"
|
| + " InternalSwap(other);\n"
|
| + "}\n",
|
| + "classname", classname_);
|
| + } else {
|
| + printer->Print(
|
| + "void $classname$::Swap($classname$* other) {\n"
|
| + " if (other == this) return;\n"
|
| + " InternalSwap(other);\n"
|
| + "}\n",
|
| + "classname", classname_);
|
| + }
|
| +
|
| + // Generate the UnsafeArenaSwap member function.
|
| + printer->Print("void $classname$::InternalSwap($classname$* other) {\n",
|
| "classname", classname_);
|
| printer->Indent();
|
| - printer->Print("if (other != this) {\n");
|
| - printer->Indent();
|
|
|
| if (HasGeneratedMethods(descriptor_->file())) {
|
| for (int i = 0; i < descriptor_->field_count(); i++) {
|
| @@ -1274,13 +2623,33 @@ GenerateSwap(io::Printer* printer) {
|
| field_generators_.get(field).GenerateSwappingCode(printer);
|
| }
|
|
|
| - for (int i = 0; i < (descriptor_->field_count() + 31) / 32; ++i) {
|
| - printer->Print("std::swap(_has_bits_[$i$], other->_has_bits_[$i$]);\n",
|
| - "i", SimpleItoa(i));
|
| + for (int i = 0; i < descriptor_->oneof_decl_count(); i++) {
|
| + printer->Print(
|
| + "std::swap($oneof_name$_, other->$oneof_name$_);\n"
|
| + "std::swap(_oneof_case_[$i$], other->_oneof_case_[$i$]);\n",
|
| + "oneof_name", descriptor_->oneof_decl(i)->name(),
|
| + "i", SimpleItoa(i));
|
| + }
|
| +
|
| + if (HasFieldPresence(descriptor_->file())) {
|
| + for (int i = 0; i < (descriptor_->field_count() + 31) / 32; ++i) {
|
| + printer->Print("std::swap(_has_bits_[$i$], other->_has_bits_[$i$]);\n",
|
| + "i", SimpleItoa(i));
|
| + }
|
| }
|
|
|
| - if (HasUnknownFields(descriptor_->file())) {
|
| - printer->Print("_unknown_fields_.Swap(&other->_unknown_fields_);\n");
|
| + if (PreserveUnknownFields(descriptor_)) {
|
| + if (UseUnknownFieldSet(descriptor_->file())) {
|
| + printer->Print(
|
| + "_internal_metadata_.Swap(&other->_internal_metadata_);\n");
|
| + } else {
|
| + printer->Print("_unknown_fields_.Swap(&other->_unknown_fields_);\n");
|
| + }
|
| + } else {
|
| + // Still swap internal_metadata as it may contain more than just
|
| + // unknown fields.
|
| + printer->Print(
|
| + "_internal_metadata_.Swap(&other->_internal_metadata_);\n");
|
| }
|
| printer->Print("std::swap(_cached_size_, other->_cached_size_);\n");
|
| if (descriptor_->extension_range_count() > 0) {
|
| @@ -1292,8 +2661,6 @@ GenerateSwap(io::Printer* printer) {
|
|
|
| printer->Outdent();
|
| printer->Print("}\n");
|
| - printer->Outdent();
|
| - printer->Print("}\n");
|
| }
|
|
|
| void MessageGenerator::
|
| @@ -1303,7 +2670,7 @@ GenerateMergeFrom(io::Printer* printer) {
|
| // base class as a parameter).
|
| printer->Print(
|
| "void $classname$::MergeFrom(const ::google::protobuf::Message& from) {\n"
|
| - " GOOGLE_CHECK_NE(&from, this);\n",
|
| + " if (GOOGLE_PREDICT_FALSE(&from == this)) MergeFromFail(__LINE__);\n",
|
| "classname", classname_);
|
| printer->Indent();
|
|
|
| @@ -1312,9 +2679,9 @@ GenerateMergeFrom(io::Printer* printer) {
|
| // system, as the GOOGLE_CHECK above ensured that we have the same descriptor
|
| // for each message.
|
| printer->Print(
|
| - "const $classname$* source =\n"
|
| - " ::google::protobuf::internal::dynamic_cast_if_available<const $classname$*>(\n"
|
| - " &from);\n"
|
| + "const $classname$* source = \n"
|
| + " ::google::protobuf::internal::DynamicCastToGenerated<const $classname$>(\n"
|
| + " &from);\n"
|
| "if (source == NULL) {\n"
|
| " ::google::protobuf::internal::ReflectionOps::Merge(from, this);\n"
|
| "} else {\n"
|
| @@ -1338,7 +2705,7 @@ GenerateMergeFrom(io::Printer* printer) {
|
| // Generate the class-specific MergeFrom, which avoids the GOOGLE_CHECK and cast.
|
| printer->Print(
|
| "void $classname$::MergeFrom(const $classname$& from) {\n"
|
| - " GOOGLE_CHECK_NE(&from, this);\n",
|
| + " if (GOOGLE_PREDICT_FALSE(&from == this)) MergeFromFail(__LINE__);\n",
|
| "classname", classname_);
|
| printer->Indent();
|
|
|
| @@ -1352,40 +2719,85 @@ GenerateMergeFrom(io::Printer* printer) {
|
| }
|
| }
|
|
|
| + // Merge oneof fields. Oneof field requires oneof case check.
|
| + for (int i = 0; i < descriptor_->oneof_decl_count(); ++i) {
|
| + printer->Print(
|
| + "switch (from.$oneofname$_case()) {\n",
|
| + "oneofname", descriptor_->oneof_decl(i)->name());
|
| + printer->Indent();
|
| + for (int j = 0; j < descriptor_->oneof_decl(i)->field_count(); j++) {
|
| + const FieldDescriptor* field = descriptor_->oneof_decl(i)->field(j);
|
| + printer->Print(
|
| + "case k$field_name$: {\n",
|
| + "field_name", UnderscoresToCamelCase(field->name(), true));
|
| + printer->Indent();
|
| + field_generators_.get(field).GenerateMergingCode(printer);
|
| + printer->Print(
|
| + "break;\n");
|
| + printer->Outdent();
|
| + printer->Print(
|
| + "}\n");
|
| + }
|
| + printer->Print(
|
| + "case $cap_oneof_name$_NOT_SET: {\n"
|
| + " break;\n"
|
| + "}\n",
|
| + "cap_oneof_name",
|
| + ToUpper(descriptor_->oneof_decl(i)->name()));
|
| + printer->Outdent();
|
| + printer->Print(
|
| + "}\n");
|
| + }
|
| +
|
| // Merge Optional and Required fields (after a _has_bit check).
|
| int last_index = -1;
|
|
|
| for (int i = 0; i < descriptor_->field_count(); ++i) {
|
| const FieldDescriptor* field = descriptor_->field(i);
|
|
|
| - if (!field->is_repeated()) {
|
| - // See above in GenerateClear for an explanation of this.
|
| - if (i / 8 != last_index / 8 || last_index < 0) {
|
| - if (last_index >= 0) {
|
| - printer->Outdent();
|
| - printer->Print("}\n");
|
| + if (!field->is_repeated() && !field->containing_oneof()) {
|
| + if (HasFieldPresence(descriptor_->file())) {
|
| + // See above in GenerateClear for an explanation of this.
|
| + if (i / 8 != last_index / 8 || last_index < 0) {
|
| + if (last_index >= 0) {
|
| + printer->Outdent();
|
| + printer->Print("}\n");
|
| + }
|
| + printer->Print(
|
| + "if (from._has_bits_[$index$ / 32] & "
|
| + "(0xffu << ($index$ % 32))) {\n",
|
| + "index", SimpleItoa(field->index()));
|
| + printer->Indent();
|
| }
|
| - printer->Print(
|
| - "if (from._has_bits_[$index$ / 32] & (0xffu << ($index$ % 32))) {\n",
|
| - "index", SimpleItoa(field->index()));
|
| - printer->Indent();
|
| }
|
|
|
| last_index = i;
|
|
|
| - printer->Print(
|
| - "if (from.has_$name$()) {\n",
|
| - "name", FieldName(field));
|
| - printer->Indent();
|
| + bool have_enclosing_if = false;
|
| + if (HasFieldPresence(descriptor_->file())) {
|
| + printer->Print(
|
| + "if (from.has_$name$()) {\n",
|
| + "name", FieldName(field));
|
| + printer->Indent();
|
| + have_enclosing_if = true;
|
| + } else {
|
| + // Merge semantics without true field presence: primitive fields are
|
| + // merged only if non-zero (numeric) or non-empty (string).
|
| + have_enclosing_if = EmitFieldNonDefaultCondition(
|
| + printer, "from.", field);
|
| + }
|
|
|
| field_generators_.get(field).GenerateMergingCode(printer);
|
|
|
| - printer->Outdent();
|
| - printer->Print("}\n");
|
| + if (have_enclosing_if) {
|
| + printer->Outdent();
|
| + printer->Print("}\n");
|
| + }
|
| }
|
| }
|
|
|
| - if (last_index >= 0) {
|
| + if (HasFieldPresence(descriptor_->file()) &&
|
| + last_index >= 0) {
|
| printer->Outdent();
|
| printer->Print("}\n");
|
| }
|
| @@ -1394,9 +2806,16 @@ GenerateMergeFrom(io::Printer* printer) {
|
| printer->Print("_extensions_.MergeFrom(from._extensions_);\n");
|
| }
|
|
|
| - if (HasUnknownFields(descriptor_->file())) {
|
| - printer->Print(
|
| - "mutable_unknown_fields()->MergeFrom(from.unknown_fields());\n");
|
| + if (PreserveUnknownFields(descriptor_)) {
|
| + if (UseUnknownFieldSet(descriptor_->file())) {
|
| + printer->Print(
|
| + "if (from._internal_metadata_.have_unknown_fields()) {\n"
|
| + " mutable_unknown_fields()->MergeFrom(from.unknown_fields());\n"
|
| + "}\n");
|
| + } else {
|
| + printer->Print(
|
| + "mutable_unknown_fields()->append(from.unknown_fields());\n");
|
| + }
|
| }
|
|
|
| printer->Outdent();
|
| @@ -1465,14 +2884,39 @@ GenerateMergeFromCodedStream(io::Printer* printer) {
|
| printer->Print(
|
| "bool $classname$::MergePartialFromCodedStream(\n"
|
| " ::google::protobuf::io::CodedInputStream* input) {\n"
|
| - "#define DO_(EXPRESSION) if (!(EXPRESSION)) return false\n"
|
| - " ::google::protobuf::uint32 tag;\n"
|
| - " while ((tag = input->ReadTag()) != 0) {\n",
|
| + "#define DO_(EXPRESSION) if (!(EXPRESSION)) goto failure\n"
|
| + " ::google::protobuf::uint32 tag;\n",
|
| "classname", classname_);
|
|
|
| + if (!UseUnknownFieldSet(descriptor_->file())) {
|
| + printer->Print(
|
| + " ::google::protobuf::io::StringOutputStream unknown_fields_string(\n"
|
| + " mutable_unknown_fields());\n"
|
| + " ::google::protobuf::io::CodedOutputStream unknown_fields_stream(\n"
|
| + " &unknown_fields_string);\n");
|
| + }
|
| +
|
| + printer->Print(
|
| + " // @@protoc_insertion_point(parse_start:$full_name$)\n",
|
| + "full_name", descriptor_->full_name());
|
| +
|
| printer->Indent();
|
| + printer->Print("for (;;) {\n");
|
| printer->Indent();
|
|
|
| + google::protobuf::scoped_array<const FieldDescriptor * > ordered_fields(
|
| + SortFieldsByNumber(descriptor_));
|
| + uint32 maxtag = descriptor_->field_count() == 0 ? 0 :
|
| + WireFormat::MakeTag(ordered_fields[descriptor_->field_count() - 1]);
|
| + const int kCutoff0 = 127; // fits in 1-byte varint
|
| + const int kCutoff1 = (127 << 7) + 127; // fits in 2-byte varint
|
| + printer->Print("::std::pair< ::google::protobuf::uint32, bool> p = "
|
| + "input->ReadTagWithCutoff($max$);\n"
|
| + "tag = p.first;\n"
|
| + "if (!p.second) goto handle_unusual;\n",
|
| + "max", SimpleItoa(maxtag <= kCutoff0 ? kCutoff0 :
|
| + (maxtag <= kCutoff1 ? kCutoff1 :
|
| + maxtag)));
|
| if (descriptor_->field_count() > 0) {
|
| // We don't even want to print the switch() if we have no fields because
|
| // MSVC dislikes switch() statements that contain only a default value.
|
| @@ -1482,16 +2926,29 @@ GenerateMergeFromCodedStream(io::Printer* printer) {
|
| // of each case. However, this is actually a bit slower in practice as it
|
| // creates a jump table that is 8x larger and sparser, and meanwhile the
|
| // if()s are highly predictable.
|
| - printer->Print(
|
| - "switch (::google::protobuf::internal::WireFormatLite::GetTagFieldNumber(tag)) {\n");
|
| + printer->Print("switch (::google::protobuf::internal::WireFormatLite::"
|
| + "GetTagFieldNumber(tag)) {\n");
|
|
|
| printer->Indent();
|
|
|
| - scoped_array<const FieldDescriptor*> ordered_fields(
|
| - SortFieldsByNumber(descriptor_));
|
| + // Find repeated messages and groups now, to simplify what follows.
|
| + hash_set<int> fields_with_parse_loop;
|
| + for (int i = 0; i < descriptor_->field_count(); i++) {
|
| + const FieldDescriptor* field = ordered_fields[i];
|
| + if (field->is_repeated() &&
|
| + (field->type() == FieldDescriptor::TYPE_MESSAGE ||
|
| + field->type() == FieldDescriptor::TYPE_GROUP)) {
|
| + fields_with_parse_loop.insert(i);
|
| + }
|
| + }
|
|
|
| + // need_label is true if we generated "goto parse_$name$" while handling the
|
| + // previous field.
|
| + bool need_label = false;
|
| for (int i = 0; i < descriptor_->field_count(); i++) {
|
| const FieldDescriptor* field = ordered_fields[i];
|
| + const bool loops = fields_with_parse_loop.count(i) > 0;
|
| + const bool next_field_loops = fields_with_parse_loop.count(i + 1) > 0;
|
|
|
| PrintFieldComment(printer, field);
|
|
|
| @@ -1502,19 +2959,24 @@ GenerateMergeFromCodedStream(io::Printer* printer) {
|
| const FieldGenerator& field_generator = field_generators_.get(field);
|
|
|
| // Emit code to parse the common, expected case.
|
| - printer->Print(
|
| - "if (::google::protobuf::internal::WireFormatLite::GetTagWireType(tag) ==\n"
|
| - " ::google::protobuf::internal::WireFormatLite::WIRETYPE_$wiretype$) {\n",
|
| - "wiretype", kWireTypeNames[WireFormat::WireTypeForField(field)]);
|
| + printer->Print("if (tag == $commontag$) {\n",
|
| + "commontag", SimpleItoa(WireFormat::MakeTag(field)));
|
|
|
| - if (i > 0 || (field->is_repeated() && !field->options().packed())) {
|
| + if (need_label ||
|
| + (field->is_repeated() && !field->is_packed() && !loops)) {
|
| printer->Print(
|
| - " parse_$name$:\n",
|
| + " parse_$name$:\n",
|
| + "name", field->name());
|
| + }
|
| + if (loops) {
|
| + printer->Print(
|
| + " DO_(input->IncrementRecursionDepth());\n"
|
| + " parse_loop_$name$:\n",
|
| "name", field->name());
|
| }
|
|
|
| printer->Indent();
|
| - if (field->options().packed()) {
|
| + if (field->is_packed()) {
|
| field_generator.GenerateMergeFromCodedStreamWithPacking(printer);
|
| } else {
|
| field_generator.GenerateMergeFromCodedStream(printer);
|
| @@ -1522,21 +2984,23 @@ GenerateMergeFromCodedStream(io::Printer* printer) {
|
| printer->Outdent();
|
|
|
| // Emit code to parse unexpectedly packed or unpacked values.
|
| - if (field->is_packable() && field->options().packed()) {
|
| - printer->Print(
|
| - "} else if (::google::protobuf::internal::WireFormatLite::GetTagWireType(tag)\n"
|
| - " == ::google::protobuf::internal::WireFormatLite::\n"
|
| - " WIRETYPE_$wiretype$) {\n",
|
| - "wiretype",
|
| - kWireTypeNames[WireFormat::WireTypeForFieldType(field->type())]);
|
| + if (field->is_packed()) {
|
| + internal::WireFormatLite::WireType wiretype =
|
| + WireFormat::WireTypeForFieldType(field->type());
|
| + printer->Print("} else if (tag == $uncommontag$) {\n",
|
| + "uncommontag", SimpleItoa(
|
| + internal::WireFormatLite::MakeTag(
|
| + field->number(), wiretype)));
|
| printer->Indent();
|
| field_generator.GenerateMergeFromCodedStream(printer);
|
| printer->Outdent();
|
| - } else if (field->is_packable() && !field->options().packed()) {
|
| - printer->Print(
|
| - "} else if (::google::protobuf::internal::WireFormatLite::GetTagWireType(tag)\n"
|
| - " == ::google::protobuf::internal::WireFormatLite::\n"
|
| - " WIRETYPE_LENGTH_DELIMITED) {\n");
|
| + } else if (field->is_packable() && !field->is_packed()) {
|
| + internal::WireFormatLite::WireType wiretype =
|
| + internal::WireFormatLite::WIRETYPE_LENGTH_DELIMITED;
|
| + printer->Print("} else if (tag == $uncommontag$) {\n",
|
| + "uncommontag", SimpleItoa(
|
| + internal::WireFormatLite::MakeTag(
|
| + field->number(), wiretype)));
|
| printer->Indent();
|
| field_generator.GenerateMergeFromCodedStreamWithPacking(printer);
|
| printer->Outdent();
|
| @@ -1544,31 +3008,58 @@ GenerateMergeFromCodedStream(io::Printer* printer) {
|
|
|
| printer->Print(
|
| "} else {\n"
|
| - " goto handle_uninterpreted;\n"
|
| + " goto handle_unusual;\n"
|
| "}\n");
|
|
|
| // switch() is slow since it can't be predicted well. Insert some if()s
|
| // here that attempt to predict the next tag.
|
| - if (field->is_repeated() && !field->options().packed()) {
|
| - // Expect repeats of this field.
|
| + // For non-packed repeated fields, expect the same tag again.
|
| + if (loops) {
|
| + printer->Print(
|
| + "if (input->ExpectTag($tag$)) goto parse_loop_$name$;\n",
|
| + "tag", SimpleItoa(WireFormat::MakeTag(field)),
|
| + "name", field->name());
|
| + } else if (field->is_repeated() && !field->is_packed()) {
|
| printer->Print(
|
| "if (input->ExpectTag($tag$)) goto parse_$name$;\n",
|
| "tag", SimpleItoa(WireFormat::MakeTag(field)),
|
| "name", field->name());
|
| }
|
|
|
| - if (i + 1 < descriptor_->field_count()) {
|
| - // Expect the next field in order.
|
| - const FieldDescriptor* next_field = ordered_fields[i + 1];
|
| - printer->Print(
|
| - "if (input->ExpectTag($next_tag$)) goto parse_$next_name$;\n",
|
| - "next_tag", SimpleItoa(WireFormat::MakeTag(next_field)),
|
| - "next_name", next_field->name());
|
| - } else {
|
| - // Expect EOF.
|
| - // TODO(kenton): Expect group end-tag?
|
| + // Have we emitted "if (input->ExpectTag($next_tag$)) ..." yet?
|
| + bool emitted_goto_next_tag = false;
|
| +
|
| + // For repeated messages/groups, we need to decrement recursion depth,
|
| + // unless the next tag is also for a repeated message/group.
|
| + if (loops) {
|
| + if (next_field_loops) {
|
| + const FieldDescriptor* next_field = ordered_fields[i + 1];
|
| + printer->Print(
|
| + "if (input->ExpectTag($next_tag$)) goto parse_loop_$next_name$;\n",
|
| + "next_tag", SimpleItoa(WireFormat::MakeTag(next_field)),
|
| + "next_name", next_field->name());
|
| + emitted_goto_next_tag = true;
|
| + }
|
| printer->Print(
|
| - "if (input->ExpectAtEnd()) return true;\n");
|
| + "input->UnsafeDecrementRecursionDepth();\n");
|
| + }
|
| +
|
| + // If there are more fields, expect the next one.
|
| + need_label = false;
|
| + if (!emitted_goto_next_tag) {
|
| + if (i + 1 == descriptor_->field_count()) {
|
| + // Expect EOF.
|
| + // TODO(kenton): Expect group end-tag?
|
| + printer->Print(
|
| + "if (input->ExpectAtEnd()) goto success;\n");
|
| + } else {
|
| + const FieldDescriptor* next_field = ordered_fields[i + 1];
|
| + printer->Print(
|
| + "if (input->ExpectTag($next_tag$)) goto parse_$next_name$;\n",
|
| + "next_tag", SimpleItoa(WireFormat::MakeTag(next_field)),
|
| + "next_name", next_field->name());
|
| + need_label = true;
|
| + }
|
| }
|
|
|
| printer->Print(
|
| @@ -1578,17 +3069,19 @@ GenerateMergeFromCodedStream(io::Printer* printer) {
|
| printer->Print("}\n\n");
|
| }
|
|
|
| - printer->Print(
|
| - "default: {\n"
|
| - "handle_uninterpreted:\n");
|
| + printer->Print("default: {\n");
|
| printer->Indent();
|
| }
|
|
|
| - // Is this an end-group tag? If so, this must be the end of the message.
|
| + printer->Outdent();
|
| + printer->Print("handle_unusual:\n");
|
| + printer->Indent();
|
| + // If tag is 0 or an end-group tag then this must be the end of the message.
|
| printer->Print(
|
| - "if (::google::protobuf::internal::WireFormatLite::GetTagWireType(tag) ==\n"
|
| + "if (tag == 0 ||\n"
|
| + " ::google::protobuf::internal::WireFormatLite::GetTagWireType(tag) ==\n"
|
| " ::google::protobuf::internal::WireFormatLite::WIRETYPE_END_GROUP) {\n"
|
| - " return true;\n"
|
| + " goto success;\n"
|
| "}\n");
|
|
|
| // Handle extension ranges.
|
| @@ -1617,22 +3110,33 @@ GenerateMergeFromCodedStream(io::Printer* printer) {
|
| }
|
| }
|
| printer->Print(") {\n");
|
| - if (HasUnknownFields(descriptor_->file())) {
|
| - PrintHandlingOptionalStaticInitializers(
|
| - descriptor_->file(), printer,
|
| - // With static initializers.
|
| - " DO_(_extensions_.ParseField(tag, input, default_instance_,\n"
|
| - " mutable_unknown_fields()));\n",
|
| - // Without.
|
| - " DO_(_extensions_.ParseField(tag, input, &default_instance(),\n"
|
| - " mutable_unknown_fields()));\n");
|
| + if (PreserveUnknownFields(descriptor_)) {
|
| + if (UseUnknownFieldSet(descriptor_->file())) {
|
| + PrintHandlingOptionalStaticInitializers(
|
| + descriptor_->file(), printer,
|
| + // With static initializers.
|
| + " DO_(_extensions_.ParseField(tag, input, default_instance_,\n"
|
| + " mutable_unknown_fields()));\n",
|
| + // Without.
|
| + " DO_(_extensions_.ParseField(tag, input, &default_instance(),\n"
|
| + " mutable_unknown_fields()));\n");
|
| + } else {
|
| + PrintHandlingOptionalStaticInitializers(
|
| + descriptor_->file(), printer,
|
| + // With static initializers.
|
| + " DO_(_extensions_.ParseField(tag, input, default_instance_,\n"
|
| + " &unknown_fields_stream));\n",
|
| + // Without.
|
| + " DO_(_extensions_.ParseField(tag, input, &default_instance(),\n"
|
| + " &unknown_fields_stream));\n");
|
| + }
|
| } else {
|
| PrintHandlingOptionalStaticInitializers(
|
| descriptor_->file(), printer,
|
| // With static initializers.
|
| - " DO_(_extensions_.ParseField(tag, input, default_instance_, NULL));\n",
|
| + " DO_(_extensions_.ParseField(tag, input, default_instance_);\n",
|
| // Without.
|
| - " DO_(_extensions_.ParseField(tag, input, &default_instance(), NULL));\n");
|
| + " DO_(_extensions_.ParseField(tag, input, &default_instance());\n");
|
| }
|
| printer->Print(
|
| " continue;\n"
|
| @@ -1640,12 +3144,19 @@ GenerateMergeFromCodedStream(io::Printer* printer) {
|
| }
|
|
|
| // We really don't recognize this tag. Skip it.
|
| - if (HasUnknownFields(descriptor_->file())) {
|
| - printer->Print(
|
| - "DO_(::google::protobuf::internal::WireFormatLite::SkipField(input, tag, mutable_unknown_fields()));\n");
|
| + if (PreserveUnknownFields(descriptor_)) {
|
| + if (UseUnknownFieldSet(descriptor_->file())) {
|
| + printer->Print(
|
| + "DO_(::google::protobuf::internal::WireFormat::SkipField(\n"
|
| + " input, tag, mutable_unknown_fields()));\n");
|
| + } else {
|
| + printer->Print(
|
| + "DO_(::google::protobuf::internal::WireFormatLite::SkipField(\n"
|
| + " input, tag, &unknown_fields_stream));\n");
|
| + }
|
| } else {
|
| printer->Print(
|
| - "DO_(::google::protobuf::internal::WireFormatLite::SkipField(input, tag, NULL));\n");
|
| + "DO_(::google::protobuf::internal::WireFormatLite::SkipField(input, tag));\n");
|
| }
|
|
|
| if (descriptor_->field_count() > 0) {
|
| @@ -1659,21 +3170,30 @@ GenerateMergeFromCodedStream(io::Printer* printer) {
|
| printer->Outdent();
|
| printer->Outdent();
|
| printer->Print(
|
| - " }\n" // while
|
| + " }\n" // for (;;)
|
| + "success:\n"
|
| + " // @@protoc_insertion_point(parse_success:$full_name$)\n"
|
| " return true;\n"
|
| + "failure:\n"
|
| + " // @@protoc_insertion_point(parse_failure:$full_name$)\n"
|
| + " return false;\n"
|
| "#undef DO_\n"
|
| - "}\n");
|
| + "}\n", "full_name", descriptor_->full_name());
|
| }
|
|
|
| void MessageGenerator::GenerateSerializeOneField(
|
| io::Printer* printer, const FieldDescriptor* field, bool to_array) {
|
| PrintFieldComment(printer, field);
|
|
|
| - if (!field->is_repeated()) {
|
| + bool have_enclosing_if = false;
|
| + if (!field->is_repeated() && HasFieldPresence(descriptor_->file())) {
|
| printer->Print(
|
| "if (has_$name$()) {\n",
|
| "name", FieldName(field));
|
| printer->Indent();
|
| + have_enclosing_if = true;
|
| + } else if (!HasFieldPresence(descriptor_->file())) {
|
| + have_enclosing_if = EmitFieldNonDefaultCondition(printer, "this->", field);
|
| }
|
|
|
| if (to_array) {
|
| @@ -1683,7 +3203,7 @@ void MessageGenerator::GenerateSerializeOneField(
|
| field_generators_.get(field).GenerateSerializeWithCachedSizes(printer);
|
| }
|
|
|
| - if (!field->is_repeated()) {
|
| + if (have_enclosing_if) {
|
| printer->Outdent();
|
| printer->Print("}\n");
|
| }
|
| @@ -1718,11 +3238,10 @@ GenerateSerializeWithCachedSizes(io::Printer* printer) {
|
| " ::google::protobuf::io::CodedOutputStream* output) const {\n"
|
| " _extensions_.SerializeMessageSetWithCachedSizes(output);\n",
|
| "classname", classname_);
|
| - if (HasUnknownFields(descriptor_->file())) {
|
| - printer->Print(
|
| - " ::google::protobuf::internal::WireFormatLite::SerializeUnknownMessageSetItems(\n"
|
| - " unknown_fields(), output);\n");
|
| - }
|
| + GOOGLE_CHECK(UseUnknownFieldSet(descriptor_->file()));
|
| + printer->Print(
|
| + " ::google::protobuf::internal::WireFormat::SerializeUnknownMessageSetItems(\n"
|
| + " unknown_fields(), output);\n");
|
| printer->Print(
|
| "}\n");
|
| return;
|
| @@ -1734,8 +3253,16 @@ GenerateSerializeWithCachedSizes(io::Printer* printer) {
|
| "classname", classname_);
|
| printer->Indent();
|
|
|
| + printer->Print(
|
| + "// @@protoc_insertion_point(serialize_start:$full_name$)\n",
|
| + "full_name", descriptor_->full_name());
|
| +
|
| GenerateSerializeWithCachedSizesBody(printer, false);
|
|
|
| + printer->Print(
|
| + "// @@protoc_insertion_point(serialize_end:$full_name$)\n",
|
| + "full_name", descriptor_->full_name());
|
| +
|
| printer->Outdent();
|
| printer->Print(
|
| "}\n");
|
| @@ -1751,12 +3278,11 @@ GenerateSerializeWithCachedSizesToArray(io::Printer* printer) {
|
| " target =\n"
|
| " _extensions_.SerializeMessageSetWithCachedSizesToArray(target);\n",
|
| "classname", classname_);
|
| - if (HasUnknownFields(descriptor_->file())) {
|
| - printer->Print(
|
| - " target = ::google::protobuf::internal::WireFormatLite::\n"
|
| - " SerializeUnknownMessageSetItemsToArray(\n"
|
| - " unknown_fields(), target);\n");
|
| - }
|
| + GOOGLE_CHECK(UseUnknownFieldSet(descriptor_->file()));
|
| + printer->Print(
|
| + " target = ::google::protobuf::internal::WireFormat::\n"
|
| + " SerializeUnknownMessageSetItemsToArray(\n"
|
| + " unknown_fields(), target);\n");
|
| printer->Print(
|
| " return target;\n"
|
| "}\n");
|
| @@ -1769,8 +3295,16 @@ GenerateSerializeWithCachedSizesToArray(io::Printer* printer) {
|
| "classname", classname_);
|
| printer->Indent();
|
|
|
| + printer->Print(
|
| + "// @@protoc_insertion_point(serialize_to_array_start:$full_name$)\n",
|
| + "full_name", descriptor_->full_name());
|
| +
|
| GenerateSerializeWithCachedSizesBody(printer, true);
|
|
|
| + printer->Print(
|
| + "// @@protoc_insertion_point(serialize_to_array_end:$full_name$)\n",
|
| + "full_name", descriptor_->full_name());
|
| +
|
| printer->Outdent();
|
| printer->Print(
|
| " return target;\n"
|
| @@ -1779,15 +3313,15 @@ GenerateSerializeWithCachedSizesToArray(io::Printer* printer) {
|
|
|
| void MessageGenerator::
|
| GenerateSerializeWithCachedSizesBody(io::Printer* printer, bool to_array) {
|
| - scoped_array<const FieldDescriptor*> ordered_fields(
|
| - SortFieldsByNumber(descriptor_));
|
| + google::protobuf::scoped_array<const FieldDescriptor * > ordered_fields(
|
| + SortFieldsByNumber(descriptor_));
|
|
|
| vector<const Descriptor::ExtensionRange*> sorted_extensions;
|
| for (int i = 0; i < descriptor_->extension_range_count(); ++i) {
|
| sorted_extensions.push_back(descriptor_->extension_range(i));
|
| }
|
| - sort(sorted_extensions.begin(), sorted_extensions.end(),
|
| - ExtensionRangeSorter());
|
| + std::sort(sorted_extensions.begin(), sorted_extensions.end(),
|
| + ExtensionRangeSorter());
|
|
|
| // Merge the fields and the extension ranges, both sorted by field number.
|
| int i, j;
|
| @@ -1809,24 +3343,67 @@ GenerateSerializeWithCachedSizesBody(io::Printer* printer, bool to_array) {
|
| }
|
| }
|
|
|
| - if (HasUnknownFields(descriptor_->file())) {
|
| - printer->Print("if (!unknown_fields().empty()) {\n");
|
| - printer->Indent();
|
| - if (to_array) {
|
| + if (PreserveUnknownFields(descriptor_)) {
|
| + if (UseUnknownFieldSet(descriptor_->file())) {
|
| + printer->Print("if (_internal_metadata_.have_unknown_fields()) {\n");
|
| + printer->Indent();
|
| + if (to_array) {
|
| + printer->Print(
|
| + "target = "
|
| + "::google::protobuf::internal::WireFormat::SerializeUnknownFieldsToArray(\n"
|
| + " unknown_fields(), target);\n");
|
| + } else {
|
| + printer->Print(
|
| + "::google::protobuf::internal::WireFormat::SerializeUnknownFields(\n"
|
| + " unknown_fields(), output);\n");
|
| + }
|
| + printer->Outdent();
|
| +
|
| printer->Print(
|
| - "target = "
|
| - "::google::protobuf::internal::WireFormatLite::SerializeUnknownFieldsToArray(\n"
|
| - " unknown_fields(), target);\n");
|
| + "}\n");
|
| } else {
|
| printer->Print(
|
| - "::google::protobuf::internal::WireFormatLite::SerializeUnknownFields(\n"
|
| - " unknown_fields(), output);\n");
|
| + "output->WriteRaw(unknown_fields().data(),\n"
|
| + " static_cast<int>(unknown_fields().size()));\n");
|
| }
|
| - printer->Outdent();
|
| + }
|
| +}
|
|
|
| - printer->Print(
|
| - "}\n");
|
| +static vector<uint32> RequiredFieldsBitMask(const Descriptor* desc) {
|
| + vector<uint32> result;
|
| + uint32 mask = 0;
|
| + for (int i = 0; i < desc->field_count(); i++) {
|
| + if (i > 0 && i % 32 == 0) {
|
| + result.push_back(mask);
|
| + mask = 0;
|
| + }
|
| + if (desc->field(i)->is_required()) {
|
| + mask |= (1 << (i & 31));
|
| + }
|
| }
|
| + if (mask != 0) {
|
| + result.push_back(mask);
|
| + }
|
| + return result;
|
| +}
|
| +
|
| +// Create an expression that evaluates to
|
| +// "for all i, (_has_bits_[i] & masks[i]) == masks[i]"
|
| +// masks is allowed to be shorter than _has_bits_, but at least one element of
|
| +// masks must be non-zero.
|
| +static string ConditionalToCheckBitmasks(const vector<uint32>& masks) {
|
| + vector<string> parts;
|
| + for (int i = 0; i < masks.size(); i++) {
|
| + if (masks[i] == 0) continue;
|
| + string m = StrCat("0x", strings::Hex(masks[i], strings::ZERO_PAD_8));
|
| + // Each xor evaluates to 0 if the expected bits are present.
|
| + parts.push_back(StrCat("((_has_bits_[", i, "] & ", m, ") ^ ", m, ")"));
|
| + }
|
| + GOOGLE_CHECK(!parts.empty());
|
| + // If we have multiple parts, each expected to be 0, then bitwise-or them.
|
| + string result = parts.size() == 1 ? parts[0] :
|
| + StrCat("(", Join(parts, "\n | "), ")");
|
| + return result + " == 0";
|
| }
|
|
|
| void MessageGenerator::
|
| @@ -1837,11 +3414,12 @@ GenerateByteSize(io::Printer* printer) {
|
| "int $classname$::ByteSize() const {\n"
|
| " int total_size = _extensions_.MessageSetByteSize();\n",
|
| "classname", classname_);
|
| - if (HasUnknownFields(descriptor_->file())) {
|
| - printer->Print(
|
| - " total_size += ::google::protobuf::internal::WireFormatLite::\n"
|
| - " ComputeUnknownMessageSetItemsSize(unknown_fields());\n");
|
| - }
|
| + GOOGLE_CHECK(UseUnknownFieldSet(descriptor_->file()));
|
| + printer->Print(
|
| + "if (_internal_metadata_.have_unknown_fields()) {\n"
|
| + " total_size += ::google::protobuf::internal::WireFormat::\n"
|
| + " ComputeUnknownMessageSetItemsSize(unknown_fields());\n"
|
| + "}\n");
|
| printer->Print(
|
| " GOOGLE_SAFE_CONCURRENT_WRITES_BEGIN();\n"
|
| " _cached_size_ = total_size;\n"
|
| @@ -1851,6 +3429,33 @@ GenerateByteSize(io::Printer* printer) {
|
| return;
|
| }
|
|
|
| + if (num_required_fields_ > 1 && HasFieldPresence(descriptor_->file())) {
|
| + // Emit a function (rarely used, we hope) that handles the required fields
|
| + // by checking for each one individually.
|
| + printer->Print(
|
| + "int $classname$::RequiredFieldsByteSizeFallback() const {\n",
|
| + "classname", classname_);
|
| + printer->Indent();
|
| + printer->Print("int total_size = 0;\n");
|
| + for (int i = 0; i < descriptor_->field_count(); i++) {
|
| + const FieldDescriptor* field = descriptor_->field(i);
|
| + if (field->is_required()) {
|
| + printer->Print("\n"
|
| + "if (has_$name$()) {\n",
|
| + "name", FieldName(field));
|
| + printer->Indent();
|
| + PrintFieldComment(printer, field);
|
| + field_generators_.get(field).GenerateByteSize(printer);
|
| + printer->Outdent();
|
| + printer->Print("}\n");
|
| + }
|
| + }
|
| + printer->Print("\n"
|
| + "return total_size;\n");
|
| + printer->Outdent();
|
| + printer->Print("}\n");
|
| + }
|
| +
|
| printer->Print(
|
| "int $classname$::ByteSize() const {\n",
|
| "classname", classname_);
|
| @@ -1859,45 +3464,121 @@ GenerateByteSize(io::Printer* printer) {
|
| "int total_size = 0;\n"
|
| "\n");
|
|
|
| - int last_index = -1;
|
| + // Handle required fields (if any). We expect all of them to be
|
| + // present, so emit one conditional that checks for that. If they are all
|
| + // present then the fast path executes; otherwise the slow path executes.
|
| + if (num_required_fields_ > 1 && HasFieldPresence(descriptor_->file())) {
|
| + // The fast path works if all required fields are present.
|
| + vector<uint32> masks_for_has_bits = RequiredFieldsBitMask(descriptor_);
|
| + printer->Print((string("if (") +
|
| + ConditionalToCheckBitmasks(masks_for_has_bits) +
|
| + ") { // All required fields are present.\n").c_str());
|
| + printer->Indent();
|
| + for (int i = 0; i < descriptor_->field_count(); i++) {
|
| + const FieldDescriptor* field = descriptor_->field(i);
|
| + if (!field->is_required()) continue;
|
| + PrintFieldComment(printer, field);
|
| + field_generators_.get(field).GenerateByteSize(printer);
|
| + printer->Print("\n");
|
| + }
|
| + printer->Outdent();
|
| + printer->Print("} else {\n" // the slow path
|
| + " total_size += RequiredFieldsByteSizeFallback();\n"
|
| + "}\n");
|
| + } else {
|
| + // num_required_fields_ <= 1: no need to be tricky
|
| + for (int i = 0; i < descriptor_->field_count(); i++) {
|
| + const FieldDescriptor* field = descriptor_->field(i);
|
| + if (!field->is_required()) continue;
|
| + PrintFieldComment(printer, field);
|
| + printer->Print("if (has_$name$()) {\n",
|
| + "name", FieldName(field));
|
| + printer->Indent();
|
| + field_generators_.get(field).GenerateByteSize(printer);
|
| + printer->Outdent();
|
| + printer->Print("}\n");
|
| + }
|
| + }
|
|
|
| + // Handle optional fields (worry below about repeateds, oneofs, etc.).
|
| + // These are handled in chunks of 8. The first chunk is
|
| + // the non-requireds-non-repeateds-non-unions-non-extensions in
|
| + // descriptor_->field(0), descriptor_->field(1), ... descriptor_->field(7),
|
| + // and the second chunk is the same for
|
| + // descriptor_->field(8), descriptor_->field(9), ... descriptor_->field(15),
|
| + // etc.
|
| + hash_map<int, uint32> fields_mask_for_chunk;
|
| for (int i = 0; i < descriptor_->field_count(); i++) {
|
| const FieldDescriptor* field = descriptor_->field(i);
|
| + if (!field->is_required() && !field->is_repeated() &&
|
| + !field->containing_oneof()) {
|
| + fields_mask_for_chunk[i / 8] |= static_cast<uint32>(1) << (i % 32);
|
| + }
|
| + }
|
|
|
| - if (!field->is_repeated()) {
|
| + int last_index = -1;
|
| + bool chunk_block_in_progress = false;
|
| + for (int i = 0; i < descriptor_->field_count(); i++) {
|
| + const FieldDescriptor* field = descriptor_->field(i);
|
| + if (!field->is_required() && !field->is_repeated() &&
|
| + !field->containing_oneof()) {
|
| // See above in GenerateClear for an explanation of this.
|
| // TODO(kenton): Share code? Unclear how to do so without
|
| // over-engineering.
|
| - if ((i / 8) != (last_index / 8) ||
|
| - last_index < 0) {
|
| - if (last_index >= 0) {
|
| + if (i / 8 != last_index / 8 || last_index < 0) {
|
| + // End previous chunk, if there was one.
|
| + if (chunk_block_in_progress) {
|
| printer->Outdent();
|
| printer->Print("}\n");
|
| + chunk_block_in_progress = false;
|
| + }
|
| + // Start chunk.
|
| + uint32 mask = fields_mask_for_chunk[i / 8];
|
| + int count = popcnt(mask);
|
| + GOOGLE_DCHECK_GE(count, 1);
|
| + if (count == 1) {
|
| + // No "if" here because the chunk is trivial.
|
| + } else {
|
| + if (HasFieldPresence(descriptor_->file())) {
|
| + printer->Print(
|
| + "if (_has_bits_[$index$ / 32] & $mask$u) {\n",
|
| + "index", SimpleItoa(i),
|
| + "mask", SimpleItoa(mask));
|
| + printer->Indent();
|
| + chunk_block_in_progress = true;
|
| + }
|
| }
|
| - printer->Print(
|
| - "if (_has_bits_[$index$ / 32] & (0xffu << ($index$ % 32))) {\n",
|
| - "index", SimpleItoa(field->index()));
|
| - printer->Indent();
|
| }
|
| last_index = i;
|
|
|
| PrintFieldComment(printer, field);
|
|
|
| - printer->Print(
|
| - "if (has_$name$()) {\n",
|
| - "name", FieldName(field));
|
| - printer->Indent();
|
| + bool have_enclosing_if = false;
|
| + if (HasFieldPresence(descriptor_->file())) {
|
| + printer->Print(
|
| + "if (has_$name$()) {\n",
|
| + "name", FieldName(field));
|
| + printer->Indent();
|
| + have_enclosing_if = true;
|
| + } else {
|
| + // Without field presence: field is serialized only if it has a
|
| + // non-default value.
|
| + have_enclosing_if = EmitFieldNonDefaultCondition(
|
| + printer, "this->", field);
|
| + }
|
|
|
| field_generators_.get(field).GenerateByteSize(printer);
|
|
|
| - printer->Outdent();
|
| - printer->Print(
|
| - "}\n"
|
| - "\n");
|
| + if (have_enclosing_if) {
|
| + printer->Outdent();
|
| + printer->Print(
|
| + "}\n"
|
| + "\n");
|
| + }
|
| }
|
| }
|
|
|
| - if (last_index >= 0) {
|
| + if (chunk_block_in_progress) {
|
| printer->Outdent();
|
| printer->Print("}\n");
|
| }
|
| @@ -1914,21 +3595,57 @@ GenerateByteSize(io::Printer* printer) {
|
| }
|
| }
|
|
|
| + // Fields inside a oneof don't use _has_bits_ so we count them in a separate
|
| + // pass.
|
| + for (int i = 0; i < descriptor_->oneof_decl_count(); i++) {
|
| + printer->Print(
|
| + "switch ($oneofname$_case()) {\n",
|
| + "oneofname", descriptor_->oneof_decl(i)->name());
|
| + printer->Indent();
|
| + for (int j = 0; j < descriptor_->oneof_decl(i)->field_count(); j++) {
|
| + const FieldDescriptor* field = descriptor_->oneof_decl(i)->field(j);
|
| + PrintFieldComment(printer, field);
|
| + printer->Print(
|
| + "case k$field_name$: {\n",
|
| + "field_name", UnderscoresToCamelCase(field->name(), true));
|
| + printer->Indent();
|
| + field_generators_.get(field).GenerateByteSize(printer);
|
| + printer->Print(
|
| + "break;\n");
|
| + printer->Outdent();
|
| + printer->Print(
|
| + "}\n");
|
| + }
|
| + printer->Print(
|
| + "case $cap_oneof_name$_NOT_SET: {\n"
|
| + " break;\n"
|
| + "}\n",
|
| + "cap_oneof_name",
|
| + ToUpper(descriptor_->oneof_decl(i)->name()));
|
| + printer->Outdent();
|
| + printer->Print(
|
| + "}\n");
|
| + }
|
| +
|
| if (descriptor_->extension_range_count() > 0) {
|
| printer->Print(
|
| "total_size += _extensions_.ByteSize();\n"
|
| "\n");
|
| }
|
|
|
| - if (HasUnknownFields(descriptor_->file())) {
|
| - printer->Print("if (!unknown_fields().empty()) {\n");
|
| - printer->Indent();
|
| - printer->Print(
|
| - "total_size +=\n"
|
| - " ::google::protobuf::internal::WireFormatLite::ComputeUnknownFieldsSize(\n"
|
| - " unknown_fields());\n");
|
| - printer->Outdent();
|
| - printer->Print("}\n");
|
| + if (PreserveUnknownFields(descriptor_)) {
|
| + if (UseUnknownFieldSet(descriptor_->file())) {
|
| + printer->Print(
|
| + "if (_internal_metadata_.have_unknown_fields()) {\n"
|
| + " total_size +=\n"
|
| + " ::google::protobuf::internal::WireFormat::ComputeUnknownFieldsSize(\n"
|
| + " unknown_fields());\n"
|
| + "}\n");
|
| + } else {
|
| + printer->Print(
|
| + "total_size += unknown_fields().size();\n"
|
| + "\n");
|
| + }
|
| }
|
|
|
| // We update _cached_size_ even though this is a const method. In theory,
|
| @@ -1953,27 +3670,28 @@ GenerateIsInitialized(io::Printer* printer) {
|
| "classname", classname_);
|
| printer->Indent();
|
|
|
| - // Check that all required fields in this message are set. We can do this
|
| - // most efficiently by checking 32 "has bits" at a time.
|
| - int has_bits_array_size = (descriptor_->field_count() + 31) / 32;
|
| - for (int i = 0; i < has_bits_array_size; i++) {
|
| - uint32 mask = 0;
|
| - for (int bit = 0; bit < 32; bit++) {
|
| - int index = i * 32 + bit;
|
| - if (index >= descriptor_->field_count()) break;
|
| - const FieldDescriptor* field = descriptor_->field(index);
|
| -
|
| - if (field->is_required()) {
|
| - mask |= 1 << bit;
|
| + if (HasFieldPresence(descriptor_->file())) {
|
| + // Check that all required fields in this message are set. We can do this
|
| + // most efficiently by checking 32 "has bits" at a time.
|
| + int has_bits_array_size = (descriptor_->field_count() + 31) / 32;
|
| + for (int i = 0; i < has_bits_array_size; i++) {
|
| + uint32 mask = 0;
|
| + for (int bit = 0; bit < 32; bit++) {
|
| + int index = i * 32 + bit;
|
| + if (index >= descriptor_->field_count()) break;
|
| + const FieldDescriptor* field = descriptor_->field(index);
|
| +
|
| + if (field->is_required()) {
|
| + mask |= 1 << bit;
|
| + }
|
| }
|
| - }
|
|
|
| - if (mask != 0) {
|
| - char buffer[kFastToBufferSize];
|
| - printer->Print(
|
| - "if ((_has_bits_[$i$] & 0x$mask$) != 0x$mask$) return false;\n",
|
| - "i", SimpleItoa(i),
|
| - "mask", FastHex32ToBuffer(mask, buffer));
|
| + if (mask != 0) {
|
| + printer->Print(
|
| + "if ((_has_bits_[$i$] & 0x$mask$) != 0x$mask$) return false;\n",
|
| + "i", SimpleItoa(i),
|
| + "mask", StrCat(strings::Hex(mask, strings::ZERO_PAD_8)));
|
| + }
|
| }
|
| }
|
|
|
| @@ -1986,16 +3704,26 @@ GenerateIsInitialized(io::Printer* printer) {
|
| HasRequiredFields(field->message_type())) {
|
| if (field->is_repeated()) {
|
| printer->Print(
|
| - "for (int i = 0; i < $name$_size(); i++) {\n"
|
| - " if (!this->$name$(i).IsInitialized()) return false;\n"
|
| - "}\n",
|
| + "if (!::google::protobuf::internal::AllAreInitialized(this->$name$()))"
|
| + " return false;\n",
|
| "name", FieldName(field));
|
| } else {
|
| - printer->Print(
|
| - "if (has_$name$()) {\n"
|
| - " if (!this->$name$().IsInitialized()) return false;\n"
|
| - "}\n",
|
| - "name", FieldName(field));
|
| + if (field->options().weak() || !field->containing_oneof()) {
|
| + // For weak fields, use the data member (::google::protobuf::Message*) instead
|
| + // of the getter to avoid a link dependency on the weak message type
|
| + // which is only forward declared.
|
| + printer->Print(
|
| + "if (has_$name$()) {\n"
|
| + " if (!this->$name$_->IsInitialized()) return false;\n"
|
| + "}\n",
|
| + "name", FieldName(field));
|
| + } else {
|
| + printer->Print(
|
| + "if (has_$name$()) {\n"
|
| + " if (!this->$name$().IsInitialized()) return false;\n"
|
| + "}\n",
|
| + "name", FieldName(field));
|
| + }
|
| }
|
| }
|
| }
|
|
|
Chromium Code Reviews
Issue 1842653006:
Update //third_party/protobuf to version 3. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master