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// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.
// http://code.google.com/p/protobuf/
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// 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_enum_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 {
// TODO(kenton): Factor out a "SetCommonFieldVariables()" to get rid of
// repeat code between this and the other field types.
void SetEnumVariables(const FieldDescriptor* descriptor,
map<string, string>* variables) {
const EnumValueDescriptor* default_value = descriptor->default_value_enum();
(*variables)["name"] = FieldName(descriptor);
(*variables)["type"] = ClassName(descriptor->enum_type(), true);
(*variables)["default"] = SimpleItoa(default_value->number());
(*variables)["index"] = SimpleItoa(descriptor->index());
(*variables)["number"] = SimpleItoa(descriptor->number());
(*variables)["classname"] = ClassName(FieldScope(descriptor), false);
(*variables)["tag_size"] = SimpleItoa(
WireFormat::TagSize(descriptor->number(), descriptor->type()));
}
} // namespace
// ===================================================================
EnumFieldGenerator::
EnumFieldGenerator(const FieldDescriptor* descriptor)
: descriptor_(descriptor) {
SetEnumVariables(descriptor, &variables_);
}
EnumFieldGenerator::~EnumFieldGenerator() {}
void EnumFieldGenerator::
GeneratePrivateMembers(io::Printer* printer) const {
printer->Print(variables_, "int $name$_;\n");
}
void EnumFieldGenerator::
GenerateAccessorDeclarations(io::Printer* printer) const {
printer->Print(variables_,
"inline $type$ $name$() const;\n"
"inline void set_$name$($type$ value);\n");
}
void EnumFieldGenerator::
GenerateInlineAccessorDefinitions(io::Printer* printer) const {
printer->Print(variables_,
"inline $type$ $classname$::$name$() const {\n"
" return static_cast< $type$ >($name$_);\n"
"}\n"
"inline void $classname$::set_$name$($type$ value) {\n"
" GOOGLE_DCHECK($type$_IsValid(value));\n"
" _set_bit($index$);\n"
" $name$_ = value;\n"
"}\n");
}
void EnumFieldGenerator::
GenerateClearingCode(io::Printer* printer) const {
printer->Print(variables_, "$name$_ = $default$;\n");
}
void EnumFieldGenerator::
GenerateMergingCode(io::Printer* printer) const {
printer->Print(variables_, "set_$name$(from.$name$());\n");
}
void EnumFieldGenerator::
GenerateInitializer(io::Printer* printer) const {
printer->Print(variables_, ",\n$name$_($default$)");
}
void EnumFieldGenerator::
GenerateMergeFromCodedStream(io::Printer* printer) const {
printer->Print(variables_,
"int value;\n"
"DO_(::google::protobuf::internal::WireFormat::ReadEnum(input, &value));\n"
"if ($type$_IsValid(value)) {\n"
" set_$name$(static_cast< $type$ >(value));\n"
"} else {\n"
" mutable_unknown_fields()->AddField($number$)->add_varint(value);\n"
"}\n");
}
void EnumFieldGenerator::
GenerateSerializeWithCachedSizes(io::Printer* printer) const {
printer->Print(variables_,
"DO_(::google::protobuf::internal::WireFormat::WriteEnum("
"$number$, this->$name$(), output));\n");
}
void EnumFieldGenerator::
GenerateByteSize(io::Printer* printer) const {
printer->Print(variables_,
"total_size += $tag_size$ +\n"
" ::google::protobuf::internal::WireFormat::EnumSize(this->$name$());\n");
}
// ===================================================================
RepeatedEnumFieldGenerator::
RepeatedEnumFieldGenerator(const FieldDescriptor* descriptor)
: descriptor_(descriptor) {
SetEnumVariables(descriptor, &variables_);
}
RepeatedEnumFieldGenerator::~RepeatedEnumFieldGenerator() {}
void RepeatedEnumFieldGenerator::
GeneratePrivateMembers(io::Printer* printer) const {
printer->Print(variables_, "::google::protobuf::RepeatedField<int> $name$_;\n");
}
void RepeatedEnumFieldGenerator::
GenerateAccessorDeclarations(io::Printer* printer) const {
printer->Print(variables_,
"inline const ::google::protobuf::RepeatedField<int>& $name$() const;\n"
"inline ::google::protobuf::RepeatedField<int>* 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 RepeatedEnumFieldGenerator::
GenerateInlineAccessorDefinitions(io::Printer* printer) const {
printer->Print(variables_,
"inline const ::google::protobuf::RepeatedField<int>&\n"
"$classname$::$name$() const {\n"
" return $name$_;\n"
"}\n"
"inline ::google::protobuf::RepeatedField<int>*\n"
"$classname$::mutable_$name$() {\n"
" return &$name$_;\n"
"}\n"
"inline $type$ $classname$::$name$(int index) const {\n"
" return static_cast< $type$ >($name$_.Get(index));\n"
"}\n"
"inline void $classname$::set_$name$(int index, $type$ value) {\n"
" GOOGLE_DCHECK($type$_IsValid(value));\n"
" $name$_.Set(index, value);\n"
"}\n"
"inline void $classname$::add_$name$($type$ value) {\n"
" GOOGLE_DCHECK($type$_IsValid(value));\n"
" $name$_.Add(value);\n"
"}\n");
}
void RepeatedEnumFieldGenerator::
GenerateClearingCode(io::Printer* printer) const {
printer->Print(variables_, "$name$_.Clear();\n");
}
void RepeatedEnumFieldGenerator::
GenerateMergingCode(io::Printer* printer) const {
printer->Print(variables_, "$name$_.MergeFrom(from.$name$_);\n");
}
void RepeatedEnumFieldGenerator::
GenerateInitializer(io::Printer* printer) const {
// Not needed for repeated fields.
}
void RepeatedEnumFieldGenerator::
GenerateMergeFromCodedStream(io::Printer* printer) const {
printer->Print(variables_,
"int value;\n"
"DO_(::google::protobuf::internal::WireFormat::ReadEnum(input, &value));\n"
"if ($type$_IsValid(value)) {\n"
" add_$name$(static_cast< $type$ >(value));\n"
"} else {\n"
" mutable_unknown_fields()->AddField($number$)->add_varint(value);\n"
"}\n");
}
void RepeatedEnumFieldGenerator::
GenerateSerializeWithCachedSizes(io::Printer* printer) const {
printer->Print(variables_,
"DO_(::google::protobuf::internal::WireFormat::WriteEnum("
"$number$, this->$name$(i), output));\n");
}
void RepeatedEnumFieldGenerator::
GenerateByteSize(io::Printer* printer) const {
printer->Print(variables_,
"total_size += $tag_size$ * $name$_size();\n"
"for (int i = 0; i < $name$_size(); i++) {\n"
" total_size += ::google::protobuf::internal::WireFormat::EnumSize(\n"
" this->$name$(i));\n"
"}\n");
}
} // namespace cpp
} // namespace compiler
} // namespace protobuf
} // namespace google
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