For type-hinting #^"[B" works, but for obtaining and passing the class to defmethod, the best I can come up with is (Class/forName "[B").
On Mar 24, 11:02 am, Frank Siebenlist <frank.siebenl...@gmail.com> wrote: > The following repl session shows my attempt to dispatch a multimethod on > "type": > > ... > user> (defmulti mm type) > #'user/mm > user> (type "a") > java.lang.String > user> (defmethod mm java.lang.String [s] (println "string")) > #<MultiFn clojure.lang.mult...@41e3a0ec> > user> (mm "a") > string > nil > user> (type (.getBytes "a")) > [B > user> (defmethod mm [B [b] (println "bytes")) > ; Evaluation aborted. > user> (def ba-type (type (.getBytes "a"))) > #'user/ba-type > user> (defmethod mm ba-type [b] (println "bytes")) > #<MultiFn clojure.lang.mult...@41e3a0ec> > user> (mm (.getBytes "a")) > bytes > nil > user> > ... > > It works easily for the string, but for a native java byte array, type (or > class) gives me back this "[B", which I'm unable to use as a dispatch value > for the defmethod. > I can, however, assign the value to a reference and us that to dispatch on > successfully - but that feels like a hack. > > Is there a way to express the byte array type in a different way than "[B" > that would work? > > Thanks, Frank. -- 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 To unsubscribe from this group, send email to clojure+unsubscribegooglegroups.com or reply to this email with the words "REMOVE ME" as the subject.
