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// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// 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.
#include <google/protobuf/compiler/cpp/cpp_generator.h>
#include <vector>
#include <memory>
#include <utility>
#include <google/protobuf/compiler/cpp/cpp_file.h>
#include <google/protobuf/compiler/cpp/cpp_helpers.h>
#include <google/protobuf/io/printer.h>
#include <google/protobuf/io/zero_copy_stream.h>
#include <google/protobuf/descriptor.pb.h>
namespace google {
namespace protobuf {
namespace compiler {
namespace cpp {
CppGenerator::CppGenerator() {}
CppGenerator::~CppGenerator() {}
bool CppGenerator::Generate(const FileDescriptor* file,
const string& parameter,
GeneratorContext* generator_context,
string* error) const {
vector<pair<string, string> > options;
ParseGeneratorParameter(parameter, &options);
// -----------------------------------------------------------------
// parse generator options
// TODO(kenton): If we ever have more options, we may want to create a
// class that encapsulates them which we can pass down to all the
// generator classes. Currently we pass dllexport_decl down to all of
// them via the constructors, but we don't want to have to add another
// constructor parameter for every option.
// If the dllexport_decl option is passed to the compiler, we need to write
// it in front of every symbol that should be exported if this .proto is
// compiled into a Windows DLL. E.g., if the user invokes the protocol
// compiler as:
// protoc --cpp_out=dllexport_decl=FOO_EXPORT:outdir foo.proto
// then we'll define classes like this:
// class FOO_EXPORT Foo {
// ...
// }
// FOO_EXPORT is a macro which should expand to __declspec(dllexport) or
// __declspec(dllimport) depending on what is being compiled.
Options file_options;
for (int i = 0; i < options.size(); i++) {
if (options[i].first == "dllexport_decl") {
file_options.dllexport_decl = options[i].second;
} else if (options[i].first == "safe_boundary_check") {
file_options.safe_boundary_check = true;
} else {
*error = "Unknown generator option: " + options[i].first;
return false;
}
}
// -----------------------------------------------------------------
string basename = StripProto(file->name());
basename.append(".pb");
FileGenerator file_generator(file, file_options);
// Generate header.
{
scoped_ptr<io::ZeroCopyOutputStream> output(
generator_context->Open(basename + ".h"));
io::Printer printer(output.get(), '$');
file_generator.GenerateHeader(&printer);
}
// Generate cc file.
{
scoped_ptr<io::ZeroCopyOutputStream> output(
generator_context->Open(basename + ".cc"));
io::Printer printer(output.get(), '$');
file_generator.GenerateSource(&printer);
}
return true;
}
} // namespace cpp
} // namespace compiler
} // namespace protobuf
} // namespace google
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