protobuf-c/protoc-c/c_message_field.cc
Ilya Lipnitskiy 7df109917a
protoc-c: add c_package option
This option allows to override the top-level 'package' setting, or even
remove the package prefix altogether (if set to "").

Fixes #322
2021-03-21 21:11:51 -07:00

130 lines
5.2 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_message_field.h>
#include <protoc-c/c_helpers.h>
#include <google/protobuf/io/printer.h>
#include <google/protobuf/wire_format.h>
namespace google {
namespace protobuf {
namespace compiler {
namespace c {
using internal::WireFormat;
// ===================================================================
MessageFieldGenerator::
MessageFieldGenerator(const FieldDescriptor* descriptor)
: FieldGenerator(descriptor) {
}
MessageFieldGenerator::~MessageFieldGenerator() {}
void MessageFieldGenerator::GenerateStructMembers(io::Printer* printer) const
{
std::map<std::string, std::string> vars;
vars["name"] = FieldName(descriptor_);
vars["type"] = FullNameToC(descriptor_->message_type()->full_name(), descriptor_->message_type()->file());
vars["deprecated"] = FieldDeprecated(descriptor_);
switch (descriptor_->label()) {
case FieldDescriptor::LABEL_REQUIRED:
case FieldDescriptor::LABEL_OPTIONAL:
printer->Print(vars, "$type$ *$name$$deprecated$;\n");
break;
case FieldDescriptor::LABEL_REPEATED:
printer->Print(vars, "size_t n_$name$$deprecated$;\n");
printer->Print(vars, "$type$ **$name$$deprecated$;\n");
break;
}
}
std::string MessageFieldGenerator::GetDefaultValue(void) const
{
/* XXX: update when protobuf gets support
* for default-values of message fields.
*/
return "NULL";
}
void MessageFieldGenerator::GenerateStaticInit(io::Printer* printer) const
{
switch (descriptor_->label()) {
case FieldDescriptor::LABEL_REQUIRED:
case FieldDescriptor::LABEL_OPTIONAL:
printer->Print("NULL");
break;
case FieldDescriptor::LABEL_REPEATED:
printer->Print("0,NULL");
break;
}
}
void MessageFieldGenerator::GenerateDescriptorInitializer(io::Printer* printer) const
{
std::string addr = "&" + FullNameToLower(descriptor_->message_type()->full_name(), descriptor_->message_type()->file()) + "__descriptor";
GenerateDescriptorInitializerGeneric(printer, false, "MESSAGE", addr);
}
} // namespace c
} // namespace compiler
} // namespace protobuf
} // namespace google