I think you're calling `deref` on the collection before passing it in? What it's saying is that `swap!` expects an atom and you handed it a vector. So either pass in the atom, or return a updated collection by replacing the call to `swap!` and the `doseq` with `(into collection selecteds)`
On Tue, Apr 3, 2018 at 5:24 PM, Renata Soares <renata.sd...@gmail.com> wrote: > Good Night, > > I have this function: > > (defn treat-requests [key-request collection] > (let [selecteds (filter #((keyword key-request) %) input)] > (doseq [item selecteds] > (swap! collection conj item)))) > > where input is an output of clojure.data.json/read-str and swap is giving > this following error: > > clojure.lang.PersistentVector cannot be cast to clojure.lang.IAtom > > How can I solve it? > > Thanks in advance. > > -- > 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 unsubscribe from this group and stop receiving emails from it, send an > email to clojure+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- “One of the main causes of the fall of the Roman Empire was that–lacking zero–they had no way to indicate successful termination of their C programs.” (Robert Firth) -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.