/src/cpp/cpp_primitive_field.cc
C++ | 382 lines | 298 code | 43 blank | 41 comment | 21 complexity | eda23d09d4c93143a9c88fe1ffa04669 MD5 | raw file
- // Protocol Buffers - Google's data interchange format
- // Copyright 2008 Google Inc. All rights reserved.
- // http://code.google.com/p/protobuf/
- //
- // Redistribution and use in source and binary forms, with or without
- // modification, are permitted provided that the following conditions are
- // met:
- //
- // * Redistributions of source code must retain the above copyright
- // notice, this list of conditions and the following disclaimer.
- // * Redistributions in binary form must reproduce the above
- // copyright notice, this list of conditions and the following disclaimer
- // in the documentation and/or other materials provided with the
- // distribution.
- // * Neither the name of Google Inc. nor the names of its
- // contributors may be used to endorse or promote products derived from
- // this software without specific prior written permission.
- //
- // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- // Author: kenton@google.com (Kenton Varda)
- // Based on original Protocol Buffers design by
- // Sanjay Ghemawat, Jeff Dean, and others.
- #include "cpp/cpp_primitive_field.h"
- #include "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,
- map<string, string>* variables) {
- SetCommonFieldVariables(descriptor, variables);
- (*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()));
- }
- } // namespace
- // ===================================================================
- PrimitiveFieldGenerator::
- PrimitiveFieldGenerator(const FieldDescriptor* descriptor)
- : descriptor_(descriptor) {
- SetPrimitiveVariables(descriptor, &variables_);
- }
- 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_,
- "inline $type$ $name$() const$deprecation$;\n"
- "inline void set_$name$($type$ value)$deprecation$;\n");
- }
- void PrimitiveFieldGenerator::
- GenerateInlineAccessorDefinitions(io::Printer* printer) const {
- printer->Print(variables_,
- "inline $type$ $classname$::$name$() const {\n"
- " return $name$_;\n"
- "}\n"
- "inline void $classname$::set_$name$($type$ value) {\n"
- " set_has_$name$();\n"
- " $name$_ = value;\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_, "std::swap($name$_, other->$name$_);\n");
- }
- void PrimitiveFieldGenerator::
- GenerateConstructorCode(io::Printer* printer) const {
- printer->Print(variables_, "$name$_ = $default$;\n");
- }
- void PrimitiveFieldGenerator::
- GenerateMergeFromCodedStream(io::Printer* printer) const {
- printer->Print(variables_,
- "DO_((::google::protobuf::internal::WireFormatLite::ReadPrimitive<\n"
- " $type$, $wire_format_field_type$>(\n"
- " input, &$name$_)));\n"
- "set_has_$name$();\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");
- }
- }
- // ===================================================================
- RepeatedPrimitiveFieldGenerator::
- RepeatedPrimitiveFieldGenerator(const FieldDescriptor* descriptor)
- : descriptor_(descriptor) {
- SetPrimitiveVariables(descriptor, &variables_);
- if (descriptor->options().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_->options().packed() && HasGeneratedMethods(descriptor_->file())) {
- printer->Print(variables_,
- "mutable int _$name$_cached_byte_size_;\n");
- }
- }
- void RepeatedPrimitiveFieldGenerator::
- GenerateAccessorDeclarations(io::Printer* printer) const {
- printer->Print(variables_,
- "inline $type$ $name$(int index) const$deprecation$;\n"
- "inline void set_$name$(int index, $type$ value)$deprecation$;\n"
- "inline void add_$name$($type$ value)$deprecation$;\n");
- printer->Print(variables_,
- "inline const ::google::protobuf::RepeatedField< $type$ >&\n"
- " $name$() const$deprecation$;\n"
- "inline ::google::protobuf::RepeatedField< $type$ >*\n"
- " mutable_$name$()$deprecation$;\n");
- }
- void RepeatedPrimitiveFieldGenerator::
- GenerateInlineAccessorDefinitions(io::Printer* printer) const {
- printer->Print(variables_,
- "inline $type$ $classname$::$name$(int index) const {\n"
- " return $name$_.Get(index);\n"
- "}\n"
- "inline void $classname$::set_$name$(int index, $type$ value) {\n"
- " $name$_.Set(index, value);\n"
- "}\n"
- "inline void $classname$::add_$name$($type$ value) {\n"
- " $name$_.Add(value);\n"
- "}\n");
- printer->Print(variables_,
- "inline const ::google::protobuf::RepeatedField< $type$ >&\n"
- "$classname$::$name$() const {\n"
- " return $name$_;\n"
- "}\n"
- "inline ::google::protobuf::RepeatedField< $type$ >*\n"
- "$classname$::mutable_$name$() {\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_, "$name$_.Swap(&other->$name$_);\n");
- }
- void RepeatedPrimitiveFieldGenerator::
- GenerateConstructorCode(io::Printer* printer) const {
- // Not needed for repeated fields.
- }
- void RepeatedPrimitiveFieldGenerator::
- GenerateMergeFromCodedStream(io::Printer* printer) const {
- printer->Print(variables_,
- "DO_((::google::protobuf::internal::WireFormatLite::$repeated_reader$<\n"
- " $type$, $wire_format_field_type$>(\n"
- " $tag_size$, $tag$, 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 {
- if (descriptor_->options().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(_$name$_cached_byte_size_);\n"
- "}\n");
- }
- printer->Print(variables_,
- "for (int i = 0; i < this->$name$_size(); i++) {\n");
- if (descriptor_->options().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_->options().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"
- " _$name$_cached_byte_size_, target);\n"
- "}\n");
- }
- printer->Print(variables_,
- "for (int i = 0; i < this->$name$_size(); i++) {\n");
- if (descriptor_->options().packed()) {
- printer->Print(variables_,
- " target = ::google::protobuf::internal::WireFormatLite::\n"
- " Write$declared_type$NoTagToArray(this->$name$(i), target);\n");
- } else {
- printer->Print(variables_,
- " target = ::google::protobuf::internal::WireFormatLite::\n"
- " Write$declared_type$ToArray($number$, this->$name$(i), target);\n");
- }
- printer->Print("}\n");
- }
- void RepeatedPrimitiveFieldGenerator::
- GenerateByteSize(io::Printer* printer) const {
- printer->Print(variables_,
- "{\n"
- " int data_size = 0;\n");
- printer->Indent();
- int fixed_size = FixedSize(descriptor_->type());
- if (fixed_size == -1) {
- printer->Print(variables_,
- "for (int i = 0; i < this->$name$_size(); i++) {\n"
- " data_size += ::google::protobuf::internal::WireFormatLite::\n"
- " $declared_type$Size(this->$name$(i));\n"
- "}\n");
- } else {
- printer->Print(variables_,
- "data_size = $fixed_size$ * this->$name$_size();\n");
- }
- if (descriptor_->options().packed()) {
- printer->Print(variables_,
- "if (data_size > 0) {\n"
- " total_size += $tag_size$ +\n"
- " ::google::protobuf::internal::WireFormatLite::Int32Size(data_size);\n"
- "}\n"
- "_$name$_cached_byte_size_ = data_size;\n"
- "total_size += data_size;\n");
- } else {
- printer->Print(variables_,
- "total_size += $tag_size$ * this->$name$_size() + data_size;\n");
- }
- printer->Outdent();
- printer->Print("}\n");
- }
- } // namespace cpp
- } // namespace compiler
- } // namespace protobuf
- } // namespace google