func()

in glog.go [284:313]

• 28 lines of code
• 9 McCabe index (conditional complexity)

func (m *moduleSpec) Set(value string) error {
	var filter []modulePat
	for _, pat := range strings.Split(value, ",") {
		if len(pat) == 0 {
			// Empty strings such as from a trailing comma can be ignored.
			continue
		}
		patLev := strings.Split(pat, "=")
		if len(patLev) != 2 || len(patLev[0]) == 0 || len(patLev[1]) == 0 {
			return errVmoduleSyntax
		}
		pattern := patLev[0]
		v, err := strconv.Atoi(patLev[1])
		if err != nil {
			return errors.New("syntax error: expect comma-separated list of filename=N")
		}
		if v < 0 {
			return errors.New("negative value for vmodule level")
		}
		if v == 0 {
			continue // Ignore. It's harmless but no point in paying the overhead.
		}
		// TODO: check syntax of filter?
		filter = append(filter, modulePat{pattern, isLiteral(pattern), Level(v)})
	}
	logging.mu.Lock()
	defer logging.mu.Unlock()
	logging.setVState(logging.verbosity, filter, true)
	return nil
}