Measure code complexity in clojure

Question

In Ruby, there are several tools to calculate complexity of the code, for example the cyclomatic complexity, the ABC score or flog, as described here: http://blog.codeclimate.com/blog/2013/08/07/deciphering-ruby-code-metrics/

Are there similar tools calculate the complexity of functions and/or entire namespaces in clojure?

Answer 1

To expand on my previous answer to a similar question: Homoiconicity in Clojure makes it quite easy to calculate basic code complexity measures.

That said, I wouldn't bother. The biggest sources of complexity in beginner Clojure programs come from wrong things, not structurally complex things. For example, programmers coming from a language like Ruby that encourages unstructured mutation are likely to initially:

• overuse dynamic vars
• use def for things that should be function args
• use setters when updaters are the correct semantic
• wait too long before learning core.async

Interestingly, many of these mistakes might also be flagged by automatic analysis.