}
}

func main() {
	flag.Parse()
	for want, f := range map[*bool]func(){
		doMaps:    stressMaps,
		doNet:     stressNet,
		doExec:    stressExec,
		doChan:    stressChannels,
		doParseGo: stressParseGo,
	} {
		if *want {
			go f()
		}
	}
	select {}

	if err != nil {
		println("parse", dirpath, err.Error())
		panic("go ParseDir fail: " + err.Error())
	}
	return pkgs
}

func stressParseGo() {
	pkgroot := runtime.GOROOT() + "/src/"
	for {
		m := make(map[string]map[string]*ast.Package)
		for _, pkg := range packages {
			m[pkg] = parseDir(pkgroot + pkg)
			Println("parsed go package", pkg)
		}
	}