diff options
Diffstat (limited to 'src/google/protobuf/compiler/cpp/cpp_primitive_field.cc')
| -rw-r--r-- | src/google/protobuf/compiler/cpp/cpp_primitive_field.cc | 378 |
1 files changed, 378 insertions, 0 deletions
diff --git a/src/google/protobuf/compiler/cpp/cpp_primitive_field.cc b/src/google/protobuf/compiler/cpp/cpp_primitive_field.cc new file mode 100644 index 0000000..81f5ce0 --- /dev/null +++ b/src/google/protobuf/compiler/cpp/cpp_primitive_field.cc @@ -0,0 +1,378 @@ +// 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.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); + 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$deprecation$;\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_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::WireFormatLite::Read$declared_type$(\n" + " input, &$name$_));\n" + "_set_bit($index$);\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_); +} + +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 const ::google::protobuf::RepeatedField< $type$ >& $name$() const\n" + " $deprecation$;\n" + "inline ::google::protobuf::RepeatedField< $type$ >* mutable_$name$()$deprecation$;\n" + "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"); +} + +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 =\n" + " input->PushLimit(length);\n" + "while (input->BytesUntilLimit() > 0) {\n" + " $type$ value;\n" + " DO_(::google::protobuf::internal::WireFormatLite::Read$declared_type$(\n" + " 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::WireFormatLite::Read$declared_type$(\n" + " 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::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 |