int threadCount = 0;

virtual void run(const MatchFinder::MatchResult &Result) {

const VarDecl *var = Result.Nodes.getNodeAs<VarDecl>("threadVar");

if (var) {

++threadCount;

llvm::outs() << "Found std::thread variable: " << var->getNameAsString()

<< " at " << var->getBeginLoc().printToString(*Result.SourceManager)

<< "\n";

}

}

void EndSourceFileAction() override {

llvm::outs() << "Total threads found: " << threadCallback.threadCount << "\n";

}

std::unique_ptr<ASTConsumer> CreateASTConsumer(CompilerInstance &CI,

StringRef file) override {

finder.addMatcher(threadVarMatcher, &threadCallback);

return finder.newASTConsumer();

}

ThreadVarCallback threadCallback;

MatchFinder finder;

auto ExpectedParser = CommonOptionsParser::create(argc, argv, MyToolCategory);

if (!ExpectedParser) {

llvm::errs() << ExpectedParser.takeError();

return 1;

}

CommonOptionsParser &OptionsParser = ExpectedParser.get();

ClangTool Tool(OptionsParser.getCompilations(),

OptionsParser.getSourcePathList());

return Tool.run(newFrontendActionFactory<ThreadFrontendAction>().get());