On Fri, Jan 23, 2009 at 11:06 PM, Rich Hickey <richhic...@gmail.com> wrote:
>
>
>
> On Jan 23, 1:47 pm, Christian Vest Hansen <karmazi...@gmail.com>
> wrote:
>> I type this expression in the REPL (trunk 1228):
>>
>> user=> (let [s (.keySet {:a 1})] [(set? s) (ifn? s)])
>> [false false]
>>
>> But I expected it to return [true true].
>>
>
> Why? keySet is specified to return a java.util.Set, and that is what
> it does. set? tests for IPersistentSet.I assumed the persistent properties caried over, and that IPersistentSet was a java.util.Set. I also assumed that IPersistentSet extended IFn. Looks like I got the implementation confused with the interfaces and was wrong on both accounts. > > Rich > > > > -- Venlig hilsen / Kind regards, Christian Vest Hansen. --~--~---------~--~----~------------~-------~--~----~ 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 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 -~----------~----~----~----~------~----~------~--~---
