On Sun, Jan 8, 2012 at 10:30 AM, Samuel Lê <[email protected]> wrote: > Hi and Happy New Year to all the Clojure mailing list, > > I am am having some trouble with the two classes Cons and PersistentList: > > user> (class (conj (map #(+ % 1) '(1 2 3)) 4)) > clojure.lang.Cons > user> (class '(1 2 3 4)) > clojure.lang.PersistentList > > My problem is that list? returns false for a Cons and true for a > PersistentList. > What can I do to make my Cons a PersistentList, or is there a way to use > another function instead of list? that will return true for both classes?
If any (...) structure will do, test with seq? instead. If you really need a PersistentList, you'll probably have to call that class's constructor or resort to icky hacks like user=> (class (apply list (cons 4 '(1 2 3)))) clojure.lang.PersistentList (though much more evil would be user=> (class (eval `(quote ~(cons 4 '(1 2 3))))) clojure.lang.PersistentList instead), because for some odd reason and despite its name (list* 4 '(1 2 3)) returns a clojure.lang.Cons. -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to [email protected] Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/clojure?hl=en
