/src/protobuf/src/google/protobuf/compiler/cpp/cpp_primitive_field.cc
C++ | 389 lines | 304 code | 42 blank | 43 comment | 21 complexity | 73c013a78947703882c07efc2c28fddc MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.1, LGPL-2.0
- // Protocol Buffers - Google's data interchange format
- // Copyright 2008 Google Inc. All rights reserved.
- // http://code.google.com/p/protobuf/
- //
- // Redistribution and use in source and binary forms, with or without
- // modification, are permitted provided that the following conditions are
- // met:
- //
- // * Redistributions of source code must retain the above copyright
- // notice, this list of conditions and the following disclaimer.
- // * Redistributions in binary form must reproduce the above
- // copyright notice, this list of conditions and the following disclaimer
- // in the documentation and/or other materials provided with the
- // distribution.
- // * Neither the name of Google Inc. nor the names of its
- // contributors may be used to endorse or promote products derived from
- // this software without specific prior written permission.
- //
- // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- // Author: kenton@google.com (Kenton Varda)
- // Based on original Protocol Buffers design by
- // Sanjay Ghemawat, Jeff Dean, and others.
- #include <google/protobuf/compiler/cpp/cpp_primitive_field.h>
- #include <google/protobuf/compiler/cpp/cpp_helpers.h>
- #include <google/protobuf/io/printer.h>
- #include <google/protobuf/wire_format_inl.h>
- #include <google/protobuf/stubs/strutil.h>
- namespace google {
- namespace protobuf {
- namespace compiler {
- namespace cpp {
- using internal::WireFormat;
- 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 WireFormat::kFixed32Size;
- case FieldDescriptor::TYPE_FIXED64 : return WireFormat::kFixed64Size;
- case FieldDescriptor::TYPE_SFIXED32: return WireFormat::kSFixed32Size;
- case FieldDescriptor::TYPE_SFIXED64: return WireFormat::kSFixed64Size;
- case FieldDescriptor::TYPE_FLOAT : return WireFormat::kFloatSize;
- case FieldDescriptor::TYPE_DOUBLE : return WireFormat::kDoubleSize;
- case FieldDescriptor::TYPE_BOOL : return WireFormat::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;
- }
- // TODO(kenton): Factor out a "SetCommonFieldVariables()" to get rid of
- // repeat code between this and the other field types.
- void SetPrimitiveVariables(const FieldDescriptor* descriptor,
- map<string, string>* variables) {
- (*variables)["name"] = FieldName(descriptor);
- (*variables)["type"] = PrimitiveTypeName(descriptor->cpp_type());
- (*variables)["default"] = DefaultValue(descriptor);
- (*variables)["index"] = SimpleItoa(descriptor->index());
- (*variables)["number"] = SimpleItoa(descriptor->number());
- (*variables)["classname"] = ClassName(FieldScope(descriptor), false);
- (*variables)["declared_type"] = DeclaredTypeMethodName(descriptor->type());
- (*variables)["tag_size"] = SimpleItoa(
- WireFormat::TagSize(descriptor->number(), descriptor->type()));
- int fixed_size = FixedSize(descriptor->type());
- if (fixed_size != -1) {
- (*variables)["fixed_size"] = SimpleItoa(fixed_size);
- }
- }
- } // 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;\n"
- "inline void set_$name$($type$ value);\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_bit($index$);\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::WireFormat::Read$declared_type$(\n"
- " input, &$name$_));\n"
- "_set_bit($index$);\n");
- }
- void PrimitiveFieldGenerator::
- GenerateSerializeWithCachedSizes(io::Printer* printer) const {
- printer->Print(variables_,
- "::google::protobuf::internal::WireFormat::Write$declared_type$("
- "$number$, this->$name$(), output);\n");
- }
- void PrimitiveFieldGenerator::
- GenerateSerializeWithCachedSizesToArray(io::Printer* printer) const {
- printer->Print(variables_,
- "target = ::google::protobuf::internal::WireFormat::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::WireFormat::$declared_type$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_);
- }
- RepeatedPrimitiveFieldGenerator::~RepeatedPrimitiveFieldGenerator() {}
- void RepeatedPrimitiveFieldGenerator::
- GeneratePrivateMembers(io::Printer* printer) const {
- printer->Print(variables_,
- "::google::protobuf::RepeatedField< $type$ > $name$_;\n");
- if (descriptor_->options().packed() &&
- descriptor_->file()->options().optimize_for() == FileOptions::SPEED) {
- printer->Print(variables_,
- "mutable int _$name$_cached_byte_size_;\n");
- }
- }
- void RepeatedPrimitiveFieldGenerator::
- GenerateAccessorDeclarations(io::Printer* printer) const {
- printer->Print(variables_,
- "inline const ::google::protobuf::RepeatedField< $type$ >& $name$() const;\n"
- "inline ::google::protobuf::RepeatedField< $type$ >* mutable_$name$();\n"
- "inline $type$ $name$(int index) const;\n"
- "inline void set_$name$(int index, $type$ value);\n"
- "inline void add_$name$($type$ value);\n");
- }
- void RepeatedPrimitiveFieldGenerator::
- GenerateInlineAccessorDefinitions(io::Printer* printer) const {
- 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"
- "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");
- }
- 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 {
- if (descriptor_->options().packed()) {
- printer->Print("{\n");
- printer->Indent();
- printer->Print(variables_,
- "::google::protobuf::uint32 length;\n"
- "DO_(input->ReadVarint32(&length));\n"
- "::google::protobuf::io::CodedInputStream::Limit limit = "
- "input->PushLimit(length);\n"
- "while (input->BytesUntilLimit() > 0) {\n"
- " $type$ value;\n"
- " DO_(::google::protobuf::internal::WireFormat::Read$declared_type$("
- "input, &value));\n"
- " add_$name$(value);\n"
- "}\n"
- "input->PopLimit(limit);\n");
- printer->Outdent();
- printer->Print("}\n");
- } else {
- printer->Print(variables_,
- "$type$ value;\n"
- "DO_(::google::protobuf::internal::WireFormat::Read$declared_type$("
- "input, &value));\n"
- "add_$name$(value);\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::WireFormat::WriteTag("
- "$number$, "
- "::google::protobuf::internal::WireFormat::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::WireFormat::Write$declared_type$NoTag("
- "this->$name$(i), output);\n");
- } else {
- printer->Print(variables_,
- " ::google::protobuf::internal::WireFormat::Write$declared_type$("
- "$number$, 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::WireFormat::WriteTagToArray("
- "$number$, "
- "::google::protobuf::internal::WireFormat::WIRETYPE_LENGTH_DELIMITED, "
- "target);\n"
- " target = ::google::protobuf::io::CodedOutputStream::WriteVarint32ToArray("
- "_$name$_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::WireFormat::"
- "Write$declared_type$NoTagToArray("
- "this->$name$(i), target);\n");
- } else {
- printer->Print(variables_,
- " target = ::google::protobuf::internal::WireFormat::"
- "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::WireFormat::$declared_type$Size(\n"
- " 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 += $tag_size$ + "
- "::google::protobuf::internal::WireFormat::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