I might be wrong, but I think that would cause (add-item 1 {:prop
"here"}) to call the wrong defmethod (should call 4th, calls 2nd)On Mon, Apr 16, 2012 at 12:47 PM, Ambrose Bonnaire-Sergeant <abonnaireserge...@gmail.com> wrote: > This should do the trick: > > (defmulti add-item (fn [i & other] (class i)) > > Thanks, > Ambrose > > > On Mon, Apr 16, 2012 at 5:33 AM, James Thornton <james.thorn...@gmail.com> > wrote: >> >> How do you use defmulti to create a function with a variable number of >> args? >> >> For example, add-item is wrapping a Java method that can take a variable >> number of args, and so here I am trying to make add-item take zero, one, or >> two args. Notice there are two singe-arg funcs -- each taking a different >> type... >> >> (defmulti add-item class) >> (defmethod add-item [] (add-item nil nil)) >> (defmethod add-item Integer [id] (add-item id nil)) >> (defmethod add-item Map [props] (add-item nil props)) >> (defmethod add-item :default [id props] ( ; call some Java method ) >> >> Unless I am overlooking something, I don't see anything on the >> Multimethods page (http://clojure.org/multimethods) about defmulti or >> defmethod taking a variable number of arguments -- they all take the same >> number of arguments of different types. >> >> - James >> >> -- >> You received this message because you are subscribed to the Google >> Groups "Clojure" group. >> To post to this group, send email to clojure@googlegroups.com >> Note that posts from new members are moderated - please be patient with >> your first post. >> To unsubscribe from this group, send email to >> clojure+unsubscr...@googlegroups.com >> For more options, visit this group at >> http://groups.google.com/group/clojure?hl=en > > > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with your > first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
