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// Protocol Buffers - Google's data interchange format // Copyright 2008 Google Inc. All rights reserved. // https://developers.google.com/protocol-buffers/ // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // Author: [email protected] (Kenton Varda) // Based on original Protocol Buffers design by // Sanjay Ghemawat, Jeff Dean, and others. #include <google/protobuf/compiler/cpp/cpp_primitive_field.h> #include <google/protobuf/compiler/cpp/cpp_helpers.h> #include <google/protobuf/io/printer.h> #include <google/protobuf/wire_format.h> #include <google/protobuf/stubs/strutil.h> namespace google { namespace protobuf { namespace compiler { namespace cpp { using internal::WireFormatLite; namespace { // For encodings with fixed sizes, returns that size in bytes. Otherwise // returns -1. int FixedSize(FieldDescriptor::Type type) { switch (type) { case FieldDescriptor::TYPE_INT32 : return -1; case FieldDescriptor::TYPE_INT64 : return -1; case FieldDescriptor::TYPE_UINT32 : return -1; case FieldDescriptor::TYPE_UINT64 : return -1; case FieldDescriptor::TYPE_SINT32 : return -1; case FieldDescriptor::TYPE_SINT64 : return -1; case FieldDescriptor::TYPE_FIXED32 : return WireFormatLite::kFixed32Size; case FieldDescriptor::TYPE_FIXED64 : return WireFormatLite::kFixed64Size; case FieldDescriptor::TYPE_SFIXED32: return WireFormatLite::kSFixed32Size; case FieldDescriptor::TYPE_SFIXED64: return WireFormatLite::kSFixed64Size; case FieldDescriptor::TYPE_FLOAT : return WireFormatLite::kFloatSize; case FieldDescriptor::TYPE_DOUBLE : return WireFormatLite::kDoubleSize; case FieldDescriptor::TYPE_BOOL : return WireFormatLite::kBoolSize; case FieldDescriptor::TYPE_ENUM : return -1; case FieldDescriptor::TYPE_STRING : return -1; case FieldDescriptor::TYPE_BYTES : return -1; case FieldDescriptor::TYPE_GROUP : return -1; case FieldDescriptor::TYPE_MESSAGE : return -1; // No default because we want the compiler to complain if any new // types are added. } GOOGLE_LOG(FATAL) << "Can't get here."; return -1; } void SetPrimitiveVariables(const FieldDescriptor* descriptor, std::map<string, string>* variables, const Options& options) { SetCommonFieldVariables(descriptor, variables, options); (*variables)["type"] = PrimitiveTypeName(descriptor->cpp_type()); (*variables)["default"] = DefaultValue(descriptor); (*variables)["tag"] = SimpleItoa(internal::WireFormat::MakeTag(descriptor)); int fixed_size = FixedSize(descriptor->type()); if (fixed_size != -1) { (*variables)["fixed_size"] = SimpleItoa(fixed_size); } (*variables)["wire_format_field_type"] = "::google::protobuf::internal::WireFormatLite::" + FieldDescriptorProto_Type_Name( static_cast<FieldDescriptorProto_Type>(descriptor->type())); (*variables)["full_name"] = descriptor->full_name(); } } // namespace // =================================================================== PrimitiveFieldGenerator::PrimitiveFieldGenerator( const FieldDescriptor* descriptor, const Options& options) : FieldGenerator(options), descriptor_(descriptor) { SetPrimitiveVariables(descriptor, &variables_, options); } PrimitiveFieldGenerator::~PrimitiveFieldGenerator() {} void PrimitiveFieldGenerator:: GeneratePrivateMembers(io::Printer* printer) const { printer->Print(variables_, "$type$ $name$_;\n"); } void PrimitiveFieldGenerator:: GenerateAccessorDeclarations(io::Printer* printer) const { printer->Print(variables_, "$deprecated_attr$$type$ $name$() const;\n"); printer->Annotate("name", descriptor_); printer->Print(variables_, "$deprecated_attr$void ${$set_$name$$}$($type$ value);\n"); printer->Annotate("{", "}", descriptor_); } void PrimitiveFieldGenerator:: GenerateInlineAccessorDefinitions(io::Printer* printer) const { printer->Print(variables_, "inline $type$ $classname$::$name$() const {\n" " // @@protoc_insertion_point(field_get:$full_name$)\n" " return $name$_;\n" "}\n" "inline void $classname$::set_$name$($type$ value) {\n" " $set_hasbit$\n" " $name$_ = value;\n" " // @@protoc_insertion_point(field_set:$full_name$)\n" "}\n"); } void PrimitiveFieldGenerator:: GenerateClearingCode(io::Printer* printer) const { printer->Print(variables_, "$name$_ = $default$;\n"); } void PrimitiveFieldGenerator:: GenerateMergingCode(io::Printer* printer) const { printer->Print(variables_, "set_$name$(from.$name$());\n"); } void PrimitiveFieldGenerator:: GenerateSwappingCode(io::Printer* printer) const { printer->Print(variables_, "swap($name$_, other->$name$_);\n"); } void PrimitiveFieldGenerator:: GenerateConstructorCode(io::Printer* printer) const { printer->Print(variables_, "$name$_ = $default$;\n"); } void PrimitiveFieldGenerator:: GenerateCopyConstructorCode(io::Printer* printer) const { printer->Print(variables_, "$name$_ = from.$name$_;\n"); } void PrimitiveFieldGenerator:: GenerateMergeFromCodedStream(io::Printer* printer) const { printer->Print(variables_, "$set_hasbit$\n" "DO_((::google::protobuf::internal::WireFormatLite::ReadPrimitive<\n" " $type$, $wire_format_field_type$>(\n" " input, &$name$_)));\n"); } void PrimitiveFieldGenerator:: GenerateSerializeWithCachedSizes(io::Printer* printer) const { printer->Print(variables_, "::google::protobuf::internal::WireFormatLite::Write$declared_type$(" "$number$, this->$name$(), output);\n"); } void PrimitiveFieldGenerator:: GenerateSerializeWithCachedSizesToArray(io::Printer* printer) const { printer->Print(variables_, "target = ::google::protobuf::internal::WireFormatLite::Write$declared_type$ToArray(" "$number$, this->$name$(), target);\n"); } void PrimitiveFieldGenerator:: GenerateByteSize(io::Printer* printer) const { int fixed_size = FixedSize(descriptor_->type()); if (fixed_size == -1) { printer->Print(variables_, "total_size += $tag_size$ +\n" " ::google::protobuf::internal::WireFormatLite::$declared_type$Size(\n" " this->$name$());\n"); } else { printer->Print(variables_, "total_size += $tag_size$ + $fixed_size$;\n"); } } // =================================================================== PrimitiveOneofFieldGenerator:: PrimitiveOneofFieldGenerator(const FieldDescriptor* descriptor, const Options& options) : PrimitiveFieldGenerator(descriptor, options) { SetCommonOneofFieldVariables(descriptor, &variables_); } PrimitiveOneofFieldGenerator::~PrimitiveOneofFieldGenerator() {} void PrimitiveOneofFieldGenerator:: GenerateInlineAccessorDefinitions(io::Printer* printer) const { printer->Print(variables_, "inline $type$ $classname$::$name$() const {\n" " // @@protoc_insertion_point(field_get:$full_name$)\n" " if (has_$name$()) {\n" " return $field_member$;\n" " }\n" " return $default$;\n" "}\n" "inline void $classname$::set_$name$($type$ value) {\n" " if (!has_$name$()) {\n" " clear_$oneof_name$();\n" " set_has_$name$();\n" " }\n" " $field_member$ = value;\n" " // @@protoc_insertion_point(field_set:$full_name$)\n" "}\n"); } void PrimitiveOneofFieldGenerator:: GenerateClearingCode(io::Printer* printer) const { printer->Print(variables_, "$field_member$ = $default$;\n"); } void PrimitiveOneofFieldGenerator:: GenerateSwappingCode(io::Printer* printer) const { // Don't print any swapping code. Swapping the union will swap this field. } void PrimitiveOneofFieldGenerator:: GenerateConstructorCode(io::Printer* printer) const { printer->Print(variables_, "$ns$::_$classname$_default_instance_.$name$_ = $default$;\n"); } void PrimitiveOneofFieldGenerator:: GenerateMergeFromCodedStream(io::Printer* printer) const { printer->Print(variables_, "clear_$oneof_name$();\n" "DO_((::google::protobuf::internal::WireFormatLite::ReadPrimitive<\n" " $type$, $wire_format_field_type$>(\n" " input, &$field_member$)));\n" "set_has_$name$();\n"); } // =================================================================== RepeatedPrimitiveFieldGenerator::RepeatedPrimitiveFieldGenerator( const FieldDescriptor* descriptor, const Options& options) : FieldGenerator(options), descriptor_(descriptor) { SetPrimitiveVariables(descriptor, &variables_, options); if (descriptor->is_packed()) { variables_["packed_reader"] = "ReadPackedPrimitive"; variables_["repeated_reader"] = "ReadRepeatedPrimitiveNoInline"; } else { variables_["packed_reader"] = "ReadPackedPrimitiveNoInline"; variables_["repeated_reader"] = "ReadRepeatedPrimitive"; } } RepeatedPrimitiveFieldGenerator::~RepeatedPrimitiveFieldGenerator() {} void RepeatedPrimitiveFieldGenerator:: GeneratePrivateMembers(io::Printer* printer) const { printer->Print(variables_, "::google::protobuf::RepeatedField< $type$ > $name$_;\n"); if (descriptor_->is_packed() && HasGeneratedMethods(descriptor_->file(), options_)) { printer->Print(variables_, "mutable int _$name$_cached_byte_size_;\n"); } } void RepeatedPrimitiveFieldGenerator:: GenerateAccessorDeclarations(io::Printer* printer) const { printer->Print(variables_, "$deprecated_attr$$type$ $name$(int index) const;\n"); printer->Annotate("name", descriptor_); printer->Print( variables_, "$deprecated_attr$void ${$set_$name$$}$(int index, $type$ value);\n"); printer->Annotate("{", "}", descriptor_); printer->Print(variables_, "$deprecated_attr$void ${$add_$name$$}$($type$ value);\n"); printer->Annotate("{", "}", descriptor_); printer->Print(variables_, "$deprecated_attr$const ::google::protobuf::RepeatedField< $type$ >&\n" " $name$() const;\n"); printer->Annotate("name", descriptor_); printer->Print(variables_, "$deprecated_attr$::google::protobuf::RepeatedField< $type$ >*\n" " ${$mutable_$name$$}$();\n"); printer->Annotate("{", "}", descriptor_); } void RepeatedPrimitiveFieldGenerator:: GenerateInlineAccessorDefinitions(io::Printer* printer) const { printer->Print(variables_, "inline $type$ $classname$::$name$(int index) const {\n" " // @@protoc_insertion_point(field_get:$full_name$)\n" " return $name$_.Get(index);\n" "}\n" "inline void $classname$::set_$name$(int index, $type$ value) {\n" " $name$_.Set(index, value);\n" " // @@protoc_insertion_point(field_set:$full_name$)\n" "}\n" "inline void $classname$::add_$name$($type$ value) {\n" " $name$_.Add(value);\n" " // @@protoc_insertion_point(field_add:$full_name$)\n" "}\n" "inline const ::google::protobuf::RepeatedField< $type$ >&\n" "$classname$::$name$() const {\n" " // @@protoc_insertion_point(field_list:$full_name$)\n" " return $name$_;\n" "}\n" "inline ::google::protobuf::RepeatedField< $type$ >*\n" "$classname$::mutable_$name$() {\n" " // @@protoc_insertion_point(field_mutable_list:$full_name$)\n" " return &$name$_;\n" "}\n"); } void RepeatedPrimitiveFieldGenerator:: GenerateClearingCode(io::Printer* printer) const { printer->Print(variables_, "$name$_.Clear();\n"); } void RepeatedPrimitiveFieldGenerator:: GenerateMergingCode(io::Printer* printer) const { printer->Print(variables_, "$name$_.MergeFrom(from.$name$_);\n"); } void RepeatedPrimitiveFieldGenerator:: GenerateSwappingCode(io::Printer* printer) const { printer->Print(variables_, "$name$_.InternalSwap(&other->$name$_);\n"); } void RepeatedPrimitiveFieldGenerator:: GenerateConstructorCode(io::Printer* printer) const { // Not needed for repeated fields. } void RepeatedPrimitiveFieldGenerator:: GenerateCopyConstructorCode(io::Printer* printer) const { printer->Print(variables_, "$name$_.CopyFrom(from.$name$_);\n"); } void RepeatedPrimitiveFieldGenerator:: GenerateMergeFromCodedStream(io::Printer* printer) const { printer->Print(variables_, "DO_((::google::protobuf::internal::WireFormatLite::$repeated_reader$<\n" " $type$, $wire_format_field_type$>(\n" " $tag_size$, $tag$u, input, this->mutable_$name$())));\n"); } void RepeatedPrimitiveFieldGenerator:: GenerateMergeFromCodedStreamWithPacking(io::Printer* printer) const { printer->Print(variables_, "DO_((::google::protobuf::internal::WireFormatLite::$packed_reader$<\n" " $type$, $wire_format_field_type$>(\n" " input, this->mutable_$name$())));\n"); } void RepeatedPrimitiveFieldGenerator:: GenerateSerializeWithCachedSizes(io::Printer* printer) const { bool array_written = false; if (descriptor_->is_packed()) { // Write the tag and the size. printer->Print(variables_, "if (this->$name$_size() > 0) {\n" " ::google::protobuf::internal::WireFormatLite::WriteTag(" "$number$, " "::google::protobuf::internal::WireFormatLite::WIRETYPE_LENGTH_DELIMITED, " "output);\n" " output->WriteVarint32(static_cast< ::google::protobuf::uint32>(\n" " _$name$_cached_byte_size_));\n"); if (FixedSize(descriptor_->type()) > 0) { // TODO(ckennelly): Use RepeatedField<T>::unsafe_data() via // WireFormatLite to access the contents of this->$name$_ to save a branch // here. printer->Print(variables_, " ::google::protobuf::internal::WireFormatLite::Write$declared_type$Array(\n" " this->$name$().data(), this->$name$_size(), output);\n"); array_written = true; // Wrote array all at once } printer->Print(variables_, "}\n"); } if (!array_written) { printer->Print(variables_, "for (int i = 0, n = this->$name$_size(); i < n; i++) {\n"); if (descriptor_->is_packed()) { printer->Print(variables_, " ::google::protobuf::internal::WireFormatLite::Write$declared_type$NoTag(\n" " this->$name$(i), output);\n"); } else { printer->Print(variables_, " ::google::protobuf::internal::WireFormatLite::Write$declared_type$(\n" " $number$, this->$name$(i), output);\n"); } printer->Print("}\n"); } } void RepeatedPrimitiveFieldGenerator:: GenerateSerializeWithCachedSizesToArray(io::Printer* printer) const { if (descriptor_->is_packed()) { // Write the tag and the size. printer->Print(variables_, "if (this->$name$_size() > 0) {\n" " target = ::google::protobuf::internal::WireFormatLite::WriteTagToArray(\n" " $number$,\n" " ::google::protobuf::internal::WireFormatLite::WIRETYPE_LENGTH_DELIMITED,\n" " target);\n" " target = ::google::protobuf::io::CodedOutputStream::WriteVarint32ToArray(\n" " static_cast< ::google::protobuf::int32>(\n" " _$name$_cached_byte_size_), target);\n" " target = ::google::protobuf::internal::WireFormatLite::\n" " Write$declared_type$NoTagToArray(this->$name$_, target);\n" "}\n"); } else { printer->Print(variables_, "target = ::google::protobuf::internal::WireFormatLite::\n" " Write$declared_type$ToArray($number$, this->$name$_, target);\n"); } } void RepeatedPrimitiveFieldGenerator:: GenerateByteSize(io::Printer* printer) const { printer->Print(variables_, "{\n"); printer->Indent(); int fixed_size = FixedSize(descriptor_->type()); if (fixed_size == -1) { printer->Print(variables_, "size_t data_size = ::google::protobuf::internal::WireFormatLite::\n" " $declared_type$Size(this->$name$_);\n"); } else { printer->Print(variables_, "unsigned int count = static_cast<unsigned int>(this->$name$_size());\n" "size_t data_size = $fixed_size$UL * count;\n"); } if (descriptor_->is_packed()) { printer->Print(variables_, "if (data_size > 0) {\n" " total_size += $tag_size$ +\n" " ::google::protobuf::internal::WireFormatLite::Int32Size(\n" " static_cast< ::google::protobuf::int32>(data_size));\n" "}\n" "int cached_size = ::google::protobuf::internal::ToCachedSize(data_size);\n" "GOOGLE_SAFE_CONCURRENT_WRITES_BEGIN();\n" "_$name$_cached_byte_size_ = cached_size;\n" "GOOGLE_SAFE_CONCURRENT_WRITES_END();\n" "total_size += data_size;\n"); } else { printer->Print(variables_, "total_size += $tag_size$ *\n" " ::google::protobuf::internal::FromIntSize(this->$name$_size());\n" "total_size += data_size;\n"); } printer->Outdent(); printer->Print("}\n"); } } // namespace cpp } // namespace compiler } // namespace protobuf } // namespace google