protobuf-c/protoc-c/c_bytes_field.cc

164 lines
6.6 KiB
C++

// 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.
// Copyright (c) 2008-2013, Dave Benson. All rights reserved.
//
// 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.
//
// 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.
// Modified to implement C code by Dave Benson.
#include <protoc-c/c_bytes_field.h>
#include <protoc-c/c_helpers.h>
#include <google/protobuf/io/printer.h>
#include <google/protobuf/wire_format.h>
#include <google/protobuf/descriptor.pb.h>
namespace google {
namespace protobuf {
namespace compiler {
namespace c {
using internal::WireFormat;
void SetBytesVariables(const FieldDescriptor* descriptor,
std::map<string, string>* variables) {
(*variables)["name"] = FieldName(descriptor);
(*variables)["default"] =
"\"" + CEscape(descriptor->default_value_string()) + "\"";
(*variables)["deprecated"] = FieldDeprecated(descriptor);
}
// ===================================================================
BytesFieldGenerator::
BytesFieldGenerator(const FieldDescriptor* descriptor)
: FieldGenerator(descriptor) {
SetBytesVariables(descriptor, &variables_);
variables_["default_value"] = descriptor->has_default_value()
? GetDefaultValue()
: string("{0,NULL}");
}
BytesFieldGenerator::~BytesFieldGenerator() {}
void BytesFieldGenerator::GenerateStructMembers(io::Printer* printer) const
{
switch (descriptor_->label()) {
case FieldDescriptor::LABEL_REQUIRED:
printer->Print(variables_, "ProtobufCBinaryData $name$$deprecated$;\n");
break;
case FieldDescriptor::LABEL_OPTIONAL:
if (descriptor_->containing_oneof() == NULL && FieldSyntax(descriptor_) == 2)
printer->Print(variables_, "protobuf_c_boolean has_$name$$deprecated$;\n");
printer->Print(variables_, "ProtobufCBinaryData $name$$deprecated$;\n");
break;
case FieldDescriptor::LABEL_REPEATED:
printer->Print(variables_, "size_t n_$name$$deprecated$;\n");
printer->Print(variables_, "ProtobufCBinaryData *$name$$deprecated$;\n");
break;
}
}
void BytesFieldGenerator::GenerateDefaultValueDeclarations(io::Printer* printer) const
{
std::map<string, string> vars;
vars["default_value_data"] = FullNameToLower(descriptor_->full_name())
+ "__default_value_data";
printer->Print(vars, "extern uint8_t $default_value_data$[];\n");
}
void BytesFieldGenerator::GenerateDefaultValueImplementations(io::Printer* printer) const
{
std::map<string, string> vars;
vars["default_value_data"] = FullNameToLower(descriptor_->full_name())
+ "__default_value_data";
vars["escaped"] = CEscape(descriptor_->default_value_string());
printer->Print(vars, "uint8_t $default_value_data$[] = \"$escaped$\";\n");
}
string BytesFieldGenerator::GetDefaultValue(void) const
{
return "{ "
+ SimpleItoa(descriptor_->default_value_string().size())
+ ", "
+ FullNameToLower(descriptor_->full_name())
+ "__default_value_data }";
}
void BytesFieldGenerator::GenerateStaticInit(io::Printer* printer) const
{
switch (descriptor_->label()) {
case FieldDescriptor::LABEL_REQUIRED:
printer->Print(variables_, "$default_value$");
break;
case FieldDescriptor::LABEL_OPTIONAL:
if (FieldSyntax(descriptor_) == 2)
printer->Print(variables_, "0, ");
printer->Print(variables_, "$default_value$");
break;
case FieldDescriptor::LABEL_REPEATED:
// no support for default?
printer->Print("0,NULL");
break;
}
}
void BytesFieldGenerator::GenerateDescriptorInitializer(io::Printer* printer) const
{
GenerateDescriptorInitializerGeneric(printer, true, "BYTES", "NULL");
}
} // namespace c
} // namespace compiler
} // namespace protobuf
} // namespace google