I am trying to determine if a container, x, passed to a function, is a map or not.
If I evaluation (keys x) at a REPL prompt, and, x is instantiated list, vector or set, I will get a java.lang.ClassCastException that some item in x cannot be cast to java.util.Map$Entry. On the other hand, if I evaluate (try (keys x) true), the form evaluates to true. It will also evaluation to true if I add a catch expression with the last value of false. I've tried catching both ClassCastException and just Exception. (try (/ 10 0) true (catch ArithmeticException _ "divide by zero!")) and (try (/ 10 1) true (catch ArithmeticException _ "divide by zero!")), for example, evaluate as expected. Is this a feature I don't understand? Some of you may recognize the 4Clojure problem I am working on. I'm not interested in solutions to that problem...just curious about this behavior and if there is something I am missing in the try (keys x) catch formulation. Many thanks -- 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.
