http://dev.clojure.org/jira This file is an XML representation of an issue en-us 4.4 649 25-07-2011 http://dev.clojure.org/jira/browse/LOGIC-35 core.logic <p>I need to define predicates to which I can later (and from other namespaces) attach further clauses (so not just facts). I couldn't find any such functionality in the source. Due to the extensive use of macros, hacking such a system onto core.logic from the outside is extremely difficult, if not impossible (to me at least).</p> <p>I'd love to implement this myself too, if given an OK and rough direction.</p> LOGIC-35

Core.logic equivalent of multimethods

Enhancement Minor Open Unresolved David Nolen Gabriel Pickard enhancement Mon, 2 Apr 2012 19:32:56 -0500 Fri, 28 Dec 2012 00:48:09 -0600 0 1 <p>I actually did manage to tack on a prototype that covers the basic behavior I would like to see: <a href="https://github.com/werg/herpderp/blob/master/src/herpderp/multo.clj">https://github.com/werg/herpderp/blob/master/src/herpderp/multo.clj</a></p> <p>I use a set stored in a ref in the defne's metadata to manage dynamic changes to the clauses. Upon changing that set using defclause I use eval to re-define the var using defne.</p> <p>This might not be nice, but allows me to continue developing features against it.</p> <p>I don't think the current implementation can really support this and I don't think it's wise to try to hack around the current implementation. I'd be willing to consider a comprehensive solution if someone is willing to do the legwork.</p> Global Rank