There are plenty of code metrics. I'm not aware of any that I would recommend, though (other than basic ones like keep function LoC <= 50, keep indentation leve

There are plenty of code metrics. I'm not aware of any that I would recommend, though (other than basic ones like keep function LoC <= 50, keep indentation level <= 3). But if you're interested, you can research this topic. I saw tools for Java which measure those code metrics.