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https://github.com/protobuf-c/protobuf-c.git
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f51eaa7c15
git-svn-id: https://protobuf-c.googlecode.com/svn/trunk@82 00440858-1255-0410-a3e6-75ea37f81c3a
120 lines
4.0 KiB
C++
120 lines
4.0 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 <google/protobuf/compiler/c/c_bytes_field.h>
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#include <google/protobuf/compiler/c/c_helpers.h>
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#include <google/protobuf/io/printer.h>
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#include <google/protobuf/wire_format_inl.h>
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#include <google/protobuf/descriptor.pb.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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void SetBytesVariables(const FieldDescriptor* descriptor,
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map<string, string>* variables) {
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(*variables)["name"] = FieldName(descriptor);
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(*variables)["default"] =
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"\"" + CEscape(descriptor->default_value_string()) + "\"";
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}
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// ===================================================================
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BytesFieldGenerator::
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BytesFieldGenerator(const FieldDescriptor* descriptor)
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: FieldGenerator(descriptor) {
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SetBytesVariables(descriptor, &variables_);
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variables_["default_value"] = descriptor->has_default_value()
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? GetDefaultValue()
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: string("{0,NULL}");
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}
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BytesFieldGenerator::~BytesFieldGenerator() {}
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void BytesFieldGenerator::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_, "ProtobufCBinaryData $name$;\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_$name$;\n");
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printer->Print(variables_, "ProtobufCBinaryData $name$;\n");
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break;
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case FieldDescriptor::LABEL_REPEATED:
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printer->Print(variables_, "size_t n_$name$;\n");
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printer->Print(variables_, "ProtobufCBinaryData *$name$;\n");
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break;
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}
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}
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void BytesFieldGenerator::GenerateDefaultValueDeclarations(io::Printer* printer) const
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{
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std::map<string, string> vars;
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vars["default_value_data"] = FullNameToLower(descriptor_->full_name())
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+ "__default_value_data";
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printer->Print(vars, "extern uint8_t $default_value_data$[];\n");
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}
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void BytesFieldGenerator::GenerateDefaultValueImplementations(io::Printer* printer) const
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{
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std::map<string, string> vars;
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vars["default_value_data"] = FullNameToLower(descriptor_->full_name())
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+ "__default_value_data";
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vars["escaped"] = CEscape(descriptor_->default_value_string());
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printer->Print(vars, "uint8_t $default_value_data$[] = \"$escaped$\";\n");
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}
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string BytesFieldGenerator::GetDefaultValue(void) const
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{
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return "{ "
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+ SimpleItoa(descriptor_->default_value_string().size())
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+ ", "
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+ FullNameToLower(descriptor_->full_name())
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+ "__default_value_data }";
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}
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void BytesFieldGenerator::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_, "$default_value$");
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break;
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case FieldDescriptor::LABEL_OPTIONAL:
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printer->Print(variables_, "0,$default_value$");
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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 BytesFieldGenerator::GenerateDescriptorInitializer(io::Printer* printer) const
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{
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GenerateDescriptorInitializerGeneric(printer, true, "BYTES", "NULL");
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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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