On Tue, Jun 14, 2011 at 3:38 PM, Daniel Weinreb <dlw@google.com> wrote:
Could you tell me where to find that? Thanks. -- Dan
The paper - titled "User-extensible sequences in Common Lisp" by C. Rhodes - can be found for example here: <http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.65.1604&rep=rep1&type=pdf> I don't remember how well the paper describes SBCL's implementation; I think it's worth taking a look at it to see how it combines CLOS (for genericity) with regular functions special-cased on CL built-in types. ABCL's impl is almost a clone of SBCL's, with only minor adaptations. I agree that classes in CLOS are overrated. CLOS is mainly about generic functions and it's a pity, imho, that GFs can only be specialized on classes. With minor changes CLOS could be more general. Cheers, Alessio