I'm fully aware of the errors that can arise from dynamic typing in Common Lisp. It's just not my experience that it's that big of a deal.
The reverse association list is contrived compared to the issues one can have in Python or Ruby. Most people just use association lists the normal way and use rassoc as needed.
Lets not kid ourselves and pretend that a reversed assoc list is used in place of a normal rassoc or find :key #'cdr.
I say this as someone who works with Python daily as my working language and grew up with a copy of this:
http://www.cs.cmu.edu/afs/cs/Web/Groups/AI/lang/lisp/impl/cl...
I'm fully aware of the errors that can arise from dynamic typing in Common Lisp. It's just not my experience that it's that big of a deal.
The reverse association list is contrived compared to the issues one can have in Python or Ruby. Most people just use association lists the normal way and use rassoc as needed.
Lets not kid ourselves and pretend that a reversed assoc list is used in place of a normal rassoc or find :key #'cdr.