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196 lines
7.5 KiB
C++
196 lines
7.5 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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//
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// This test insures that net/proto2/proto/descriptor.pb.{h,cc} match exactly
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// what would be generated by the protocol compiler. These files are not
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// generated automatically at build time because they are compiled into the
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// protocol compiler itself. So, if they were auto-generated, you'd have a
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// chicken-and-egg problem.
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//
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// If this test fails, run the script
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// "generate_descriptor_proto.sh" and add
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// descriptor.pb.{h,cc} to your changelist.
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#include <map>
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#include <thirdparty/protobuf/testing/file.h>
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#include <thirdparty/protobuf/testing/file.h>
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#include <thirdparty/protobuf/compiler/cpp/cpp_helpers.h>
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#include <thirdparty/protobuf/compiler/cpp/cpp_generator.h>
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#include <thirdparty/protobuf/compiler/importer.h>
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#include <thirdparty/protobuf/test_util2.h>
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#include <thirdparty/protobuf/io/zero_copy_stream_impl.h>
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#include <thirdparty/protobuf/descriptor.h>
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#include <thirdparty/protobuf/stubs/strutil.h>
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#include <thirdparty/protobuf/testing/googletest.h>
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#include <gtest/gtest.h>
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#include <thirdparty/protobuf/stubs/substitute.h>
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#include <thirdparty/protobuf/stubs/map_util.h>
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#include <thirdparty/protobuf/stubs/stl_util.h>
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namespace google {
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namespace protobuf {
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namespace compiler {
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namespace cpp {
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namespace {
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class MockErrorCollector : public MultiFileErrorCollector {
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public:
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MockErrorCollector() {}
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~MockErrorCollector() {}
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std::string text_;
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// implements ErrorCollector ---------------------------------------
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void AddError(const std::string& filename, int line, int column,
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const std::string& message) {
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strings::SubstituteAndAppend(&text_, "$0:$1:$2: $3\n", filename, line, column,
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message);
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}
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};
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class MockGeneratorContext : public GeneratorContext {
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public:
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void ExpectFileMatches(const std::string& virtual_filename,
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const std::string& physical_filename) {
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auto it = files_.find(virtual_filename);
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ASSERT_TRUE(it != files_.end())
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<< "Generator failed to generate file: " << virtual_filename;
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std::string expected_contents = *it->second;
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std::string actual_contents;
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GOOGLE_CHECK_OK(
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File::GetContents(TestUtil::TestSourceDir() + "/" + physical_filename,
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&actual_contents, true))
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<< physical_filename;
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CleanStringLineEndings(&actual_contents, false);
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#ifdef WRITE_FILES // Define to debug mismatched files.
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GOOGLE_CHECK_OK(File::SetContents("/tmp/expected.cc", expected_contents,
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true));
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GOOGLE_CHECK_OK(
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File::SetContents("/tmp/actual.cc", actual_contents, true));
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#endif
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ASSERT_EQ(expected_contents, actual_contents)
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<< physical_filename
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<< " needs to be regenerated. Please run "
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"generate_descriptor_proto.sh. "
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"Then add this file to your CL.";
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}
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// implements GeneratorContext --------------------------------------
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virtual io::ZeroCopyOutputStream* Open(const std::string& filename) {
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auto& map_slot = files_[filename];
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map_slot.reset(new std::string);
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return new io::StringOutputStream(map_slot.get());
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}
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private:
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std::map<std::string, std::unique_ptr<std::string>> files_;
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};
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const char kDescriptorParameter[] = "dllexport_decl=PROTOBUF_EXPORT";
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const char kPluginParameter[] = "dllexport_decl=PROTOC_EXPORT";
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const char* test_protos[][2] = {
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{"google/protobuf/descriptor", kDescriptorParameter},
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{"google/protobuf/compiler/plugin", kPluginParameter},
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};
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TEST(BootstrapTest, GeneratedFilesMatch) {
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// We need a mapping from the actual file to virtual and actual path
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// of the data to compare to.
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std::map<std::string, std::string> vpath_map;
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std::map<std::string, std::string> rpath_map;
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rpath_map["third_party/protobuf/src/google/protobuf/test_messages_proto2"] =
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"net/proto2/z_generated_example/test_messages_proto2";
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rpath_map["third_party/protobuf/src/google/protobuf/test_messages_proto3"] =
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"net/proto2/z_generated_example/test_messages_proto3";
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rpath_map["net/proto2/internal/proto2_weak"] =
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"net/proto2/z_generated_example/proto2_weak";
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DiskSourceTree source_tree;
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source_tree.MapPath("", TestUtil::TestSourceDir());
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for (auto file_parameter : test_protos) {
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MockErrorCollector error_collector;
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Importer importer(&source_tree, &error_collector);
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const FileDescriptor* file =
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importer.Import(file_parameter[0] + std::string(".proto"));
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ASSERT_TRUE(file != nullptr)
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<< "Can't import file " << file_parameter[0] + std::string(".proto")
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<< "\n";
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EXPECT_EQ("", error_collector.text_);
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CppGenerator generator;
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MockGeneratorContext context;
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#ifdef GOOGLE_PROTOBUF_RUNTIME_INCLUDE_BASE
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generator.set_opensource_runtime(true);
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generator.set_runtime_include_base(GOOGLE_PROTOBUF_RUNTIME_INCLUDE_BASE);
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#endif
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std::string error;
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ASSERT_TRUE(generator.Generate(file, file_parameter[1], &context, &error));
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std::string vpath =
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FindWithDefault(vpath_map, file_parameter[0], file_parameter[0]);
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std::string rpath =
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FindWithDefault(rpath_map, file_parameter[0], file_parameter[0]);
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context.ExpectFileMatches(vpath + ".pb.cc", rpath + ".pb.cc");
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context.ExpectFileMatches(vpath + ".pb.h", rpath + ".pb.h");
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}
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}
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// test Generate in cpp_generator.cc
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TEST(BootstrapTest, OptionNotExist) {
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cpp::CppGenerator generator;
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DescriptorPool pool;
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GeneratorContext* generator_context = nullptr;
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std::string parameter = "aaa";
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std::string error;
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ASSERT_FALSE(generator.Generate(
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pool.FindFileByName("google/protobuf/descriptor.proto"), parameter,
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generator_context, &error));
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EXPECT_EQ(error, "Unknown generator option: " + parameter);
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}
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} // namespace
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} // namespace cpp
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} // namespace compiler
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} // namespace protobuf
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} // namespace google
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