TEST(ClangToolTest, ArgumentAdjusters) {
FixedCompilationDatabase Compilations("/", std::vector<std::string>());
ClangTool Tool(Compilations, std::vector<std::string>(1, "/a.cc"));
Tool.mapVirtualFile("/a.cc", "void a() {}");
std::unique_ptr<FrontendActionFactory> Action(
newFrontendActionFactory<SyntaxOnlyAction>());
bool Found = false;
bool Ran = false;
ArgumentsAdjuster CheckSyntaxOnlyAdjuster =
[&Found, &Ran](const CommandLineArguments &Args) {
Ran = true;
if (std::find(Args.begin(), Args.end(), "-fsyntax-only") != Args.end())
Found = true;
return Args;
};
Tool.appendArgumentsAdjuster(CheckSyntaxOnlyAdjuster);
Tool.run(Action.get());
EXPECT_TRUE(Ran);
EXPECT_TRUE(Found);
Ran = Found = false;
Tool.clearArgumentsAdjusters();
Tool.appendArgumentsAdjuster(CheckSyntaxOnlyAdjuster);
Tool.appendArgumentsAdjuster(getClangSyntaxOnlyAdjuster());
Tool.run(Action.get());
EXPECT_TRUE(Ran);
EXPECT_FALSE(Found);
}
ClangTool::ClangTool(const CompilationDatabase &Compilations,
ArrayRef<std::string> SourcePaths,
std::shared_ptr<PCHContainerOperations> PCHContainerOps)
: Compilations(Compilations), SourcePaths(SourcePaths),
PCHContainerOps(PCHContainerOps),
Files(new FileManager(FileSystemOptions())), DiagConsumer(nullptr) {
appendArgumentsAdjuster(getClangStripOutputAdjuster());
appendArgumentsAdjuster(getClangSyntaxOnlyAdjuster());
}
ClangTool::ClangTool(const CompilationDatabase &Compilations,
ArrayRef<std::string> SourcePaths,
std::shared_ptr<PCHContainerOperations> PCHContainerOps)
: Compilations(Compilations), SourcePaths(SourcePaths),
PCHContainerOps(PCHContainerOps),
OverlayFileSystem(new vfs::OverlayFileSystem(vfs::getRealFileSystem())),
InMemoryFileSystem(new vfs::InMemoryFileSystem),
Files(new FileManager(FileSystemOptions(), OverlayFileSystem)),
DiagConsumer(nullptr) {
OverlayFileSystem->pushOverlay(InMemoryFileSystem);
appendArgumentsAdjuster(getClangStripOutputAdjuster());
appendArgumentsAdjuster(getClangSyntaxOnlyAdjuster());
}
// 开始分析
void Run(const CxxCleanOptionsParser &optionParser)
{
ClangTool tool(optionParser.getCompilations(), Project::instance.m_cpps);
tool.clearArgumentsAdjusters();
tool.appendArgumentsAdjuster(getClangSyntaxOnlyAdjuster());
optionParser.AddClangArgumentByOption(tool);
optionParser.AddClangArgument(tool, "-fcxx-exceptions");
optionParser.AddClangArgument(tool, "-nobuiltininc"); // 禁止使用clang内置的头文件
optionParser.AddClangArgument(tool, "-w"); // 禁用警告
optionParser.AddClangArgument(tool, "-Wno-everything"); // 禁用任何警告，比-w级别高
optionParser.AddClangArgument(tool, "-ferror-limit=5"); // 限制单个cpp产生的编译错误数，超过则不再编译
optionParser.AddClangArgument(tool, "-fpermissive"); // 对不某些不符合标准的行为，允许编译通过，即对标准做降级处理
DiagnosticOptions diagnosticOptions;
diagnosticOptions.ShowOptionNames = 1;
tool.setDiagnosticConsumer(new CxxcleanDiagnosticConsumer(&diagnosticOptions)); // 注意：这里用new没关系，会被释放
// 对每个文件进行语法分析
tool.run(newFrontendActionFactory<CxxCleanAction>().get());
ProjectHistory::instance.Print();
HtmlLog::instance.Close();
}
