I have tried to use SBCL&#x27;s code walker on a pet project and so far I have no problem with it; in fact it is surprisingly easy to use. By the way, the following post is a good introduction to it: <a href="http:&#x2F;&#x2F;christophe.rhodes.io&#x2F;notes&#x2F;blog&#x2F;posts&#x2F;2014&#x2F;naive_vs_proper_code-walking&#x2F;" rel="nofollow">http:&#x2F;&#x2F;christophe.rhodes.io&#x2F;notes&#x2F;blog&#x2F;posts&#x2F;2014&#x2F;naive_vs_p...</a>