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110 lines
3.6 KiB
C++
110 lines
3.6 KiB
C++
// Protocol Buffers - Google's data interchange format
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// Copyright 2008 Google Inc.
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// http://code.google.com/p/protobuf/
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Author: kenton@google.com (Kenton Varda)
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// Based on original Protocol Buffers design by
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// Sanjay Ghemawat, Jeff Dean, and others.
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// Modified to implement C code by Dave Benson.
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#include <protoc-c/c_enum_field.h>
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#include <protoc-c/c_helpers.h>
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#include <google/protobuf/io/printer.h>
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#include <google/protobuf/wire_format.h>
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namespace google {
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namespace protobuf {
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namespace compiler {
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namespace c {
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using internal::WireFormat;
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// TODO(kenton): Factor out a "SetCommonFieldVariables()" to get rid of
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// repeat code between this and the other field types.
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void SetEnumVariables(const FieldDescriptor* descriptor,
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map<string, string>* variables) {
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(*variables)["name"] = FieldName(descriptor);
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(*variables)["type"] = FullNameToC(descriptor->enum_type()->full_name());
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if (descriptor->has_default_value()) {
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const EnumValueDescriptor* default_value = descriptor->default_value_enum();
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(*variables)["default"] = FullNameToUpper(default_value->type()->full_name())
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+ "__" + ToUpper(default_value->name());
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} else
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(*variables)["default"] = "0";
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(*variables)["deprecated"] = FieldDeprecated(descriptor);
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}
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// ===================================================================
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EnumFieldGenerator::
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EnumFieldGenerator(const FieldDescriptor* descriptor)
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: FieldGenerator(descriptor)
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{
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SetEnumVariables(descriptor, &variables_);
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}
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EnumFieldGenerator::~EnumFieldGenerator() {}
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void EnumFieldGenerator::GenerateStructMembers(io::Printer* printer) const
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{
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switch (descriptor_->label()) {
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case FieldDescriptor::LABEL_REQUIRED:
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printer->Print(variables_, "$type$ $name$$deprecated$;\n");
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break;
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case FieldDescriptor::LABEL_OPTIONAL:
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printer->Print(variables_, "protobuf_c_boolean has_$name$$deprecated$;\n");
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printer->Print(variables_, "$type$ $name$$deprecated$;\n");
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break;
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case FieldDescriptor::LABEL_REPEATED:
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printer->Print(variables_, "size_t n_$name$$deprecated$;\n");
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printer->Print(variables_, "$type$ *$name$$deprecated$;\n");
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break;
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}
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}
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string EnumFieldGenerator::GetDefaultValue(void) const
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{
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return variables_.find("default")->second;
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}
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void EnumFieldGenerator::GenerateStaticInit(io::Printer* printer) const
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{
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switch (descriptor_->label()) {
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case FieldDescriptor::LABEL_REQUIRED:
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printer->Print(variables_, "$default$");
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break;
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case FieldDescriptor::LABEL_OPTIONAL:
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printer->Print(variables_, "0,$default$");
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break;
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case FieldDescriptor::LABEL_REPEATED:
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// no support for default?
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printer->Print("0,NULL");
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break;
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}
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}
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void EnumFieldGenerator::GenerateDescriptorInitializer(io::Printer* printer) const
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{
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string addr = "&" + FullNameToLower(descriptor_->enum_type()->full_name()) + "__descriptor";
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GenerateDescriptorInitializerGeneric(printer, true, "ENUM", addr);
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}
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} // namespace c
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} // namespace compiler
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} // namespace protobuf
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} // namespace google
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