On Sat, Jun 18, 2011 at 4:44 AM, Sam Aaron <samaa...@gmail.com> wrote: > Is it possible to use this approach to create a callable record which can > take a variable number of arguments? > > I can't get the following to work: > > (defrecord Foo [a] > clojure.lang.IFn > (invoke [this & args] (println (str a args)))) > > (def yo (Foo. "sam")) > > (yo 1 2 3 4) ;=> > sc-one.Foo.invoke(Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object; > [Thrown class java.lang.AbstractMethodError]
Not easily. You may be able to override applyTo to get that to work. Alternatively, you can work around it by using destructuring and an extra vector around the args: (defrecord Foo [a] clojure.lang.IFn (invoke [this [& args]] (println (str a args)))) (def yo (Foo. "sam")) (yo [1 2 3 4]) A bit ugly, but it should work. -- Protege: What is this seething mass of parentheses?! Master: Your father's Lisp REPL. This is the language of a true hacker. Not as clumsy or random as C++; a language for a more civilized age. -- 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
