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213 lines
8.0 KiB
C++
213 lines
8.0 KiB
C++
// Protocol Buffers - Google's data interchange format
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// Copyright 2008 Google Inc. All rights reserved.
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// https://developers.google.com/protocol-buffers/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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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#include <thirdparty/protobuf/compiler/java/generator.h>
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#include <memory>
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#include <thirdparty/protobuf/io/printer.h>
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#include <thirdparty/protobuf/io/zero_copy_stream.h>
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#include <thirdparty/protobuf/stubs/stringprintf.h>
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#include <thirdparty/protobuf/compiler/java/file.h>
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#include <thirdparty/protobuf/compiler/java/generator_factory.h>
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#include <thirdparty/protobuf/compiler/java/helpers.h>
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#include <thirdparty/protobuf/compiler/java/name_resolver.h>
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#include <thirdparty/protobuf/compiler/java/options.h>
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#include <thirdparty/protobuf/compiler/java/shared_code_generator.h>
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#include <thirdparty/protobuf/descriptor.pb.h>
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#include <thirdparty/protobuf/stubs/strutil.h>
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namespace google {
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namespace protobuf {
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namespace compiler {
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namespace java {
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JavaGenerator::JavaGenerator() {}
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JavaGenerator::~JavaGenerator() {}
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uint64_t JavaGenerator::GetSupportedFeatures() const {
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return CodeGenerator::Feature::FEATURE_PROTO3_OPTIONAL;
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}
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bool JavaGenerator::Generate(const FileDescriptor* file,
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const std::string& parameter,
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GeneratorContext* context,
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std::string* error) const {
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// -----------------------------------------------------------------
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// parse generator options
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std::vector<std::pair<std::string, std::string> > options;
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ParseGeneratorParameter(parameter, &options);
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Options file_options;
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for (int i = 0; i < options.size(); i++) {
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if (options[i].first == "output_list_file") {
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file_options.output_list_file = options[i].second;
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} else if (options[i].first == "immutable") {
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file_options.generate_immutable_code = true;
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} else if (options[i].first == "mutable") {
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file_options.generate_mutable_code = true;
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} else if (options[i].first == "shared") {
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file_options.generate_shared_code = true;
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} else if (options[i].first == "lite") {
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// Note: Java Lite does not guarantee API/ABI stability. We may choose to
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// break existing API in order to boost performance / reduce code size.
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file_options.enforce_lite = true;
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} else if (options[i].first == "annotate_code") {
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file_options.annotate_code = true;
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} else if (options[i].first == "annotation_list_file") {
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file_options.annotation_list_file = options[i].second;
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} else {
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*error = "Unknown generator option: " + options[i].first;
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return false;
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}
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}
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if (file_options.enforce_lite && file_options.generate_mutable_code) {
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*error = "lite runtime generator option cannot be used with mutable API.";
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return false;
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}
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// By default we generate immutable code and shared code for immutable API.
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if (!file_options.generate_immutable_code &&
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!file_options.generate_mutable_code &&
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!file_options.generate_shared_code) {
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file_options.generate_immutable_code = true;
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file_options.generate_shared_code = true;
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}
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// -----------------------------------------------------------------
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std::vector<std::string> all_files;
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std::vector<std::string> all_annotations;
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std::vector<FileGenerator*> file_generators;
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if (file_options.generate_immutable_code) {
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file_generators.push_back(new FileGenerator(file, file_options,
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/* immutable = */ true));
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}
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if (file_options.generate_mutable_code) {
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file_generators.push_back(new FileGenerator(file, file_options,
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/* mutable = */ false));
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}
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for (int i = 0; i < file_generators.size(); ++i) {
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if (!file_generators[i]->Validate(error)) {
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for (int j = 0; j < file_generators.size(); ++j) {
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delete file_generators[j];
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}
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return false;
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}
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}
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for (int i = 0; i < file_generators.size(); ++i) {
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FileGenerator* file_generator = file_generators[i];
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std::string package_dir = JavaPackageToDir(file_generator->java_package());
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std::string java_filename = package_dir;
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java_filename += file_generator->classname();
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java_filename += ".java";
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all_files.push_back(java_filename);
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std::string info_full_path = java_filename + ".pb.meta";
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if (file_options.annotate_code) {
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all_annotations.push_back(info_full_path);
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}
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// Generate main java file.
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std::unique_ptr<io::ZeroCopyOutputStream> output(
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context->Open(java_filename));
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GeneratedCodeInfo annotations;
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io::AnnotationProtoCollector<GeneratedCodeInfo> annotation_collector(
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&annotations);
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io::Printer printer(
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output.get(), '$',
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file_options.annotate_code ? &annotation_collector : NULL);
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file_generator->Generate(&printer);
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// Generate sibling files.
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file_generator->GenerateSiblings(package_dir, context, &all_files,
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&all_annotations);
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if (file_options.annotate_code) {
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std::unique_ptr<io::ZeroCopyOutputStream> info_output(
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context->Open(info_full_path));
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annotations.SerializeToZeroCopyStream(info_output.get());
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}
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}
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for (int i = 0; i < file_generators.size(); ++i) {
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delete file_generators[i];
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}
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file_generators.clear();
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// Generate output list if requested.
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if (!file_options.output_list_file.empty()) {
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// Generate output list. This is just a simple text file placed in a
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// deterministic location which lists the .java files being generated.
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std::unique_ptr<io::ZeroCopyOutputStream> srclist_raw_output(
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context->Open(file_options.output_list_file));
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io::Printer srclist_printer(srclist_raw_output.get(), '$');
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for (int i = 0; i < all_files.size(); i++) {
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srclist_printer.Print("$filename$\n", "filename", all_files[i]);
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}
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}
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if (!file_options.annotation_list_file.empty()) {
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// Generate output list. This is just a simple text file placed in a
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// deterministic location which lists the .java files being generated.
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std::unique_ptr<io::ZeroCopyOutputStream> annotation_list_raw_output(
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context->Open(file_options.annotation_list_file));
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io::Printer annotation_list_printer(annotation_list_raw_output.get(), '$');
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for (int i = 0; i < all_annotations.size(); i++) {
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annotation_list_printer.Print("$filename$\n", "filename",
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all_annotations[i]);
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}
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}
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return true;
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}
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} // namespace java
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} // namespace compiler
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} // namespace protobuf
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} // namespace google
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