seems there's no type hint required: (def t nil) (Thread. t)
also works... How are you able to determine that it's calling the String constructor? --Robert McIntyre On Tue, Dec 28, 2010 at 3:08 AM, Alex Osborne <a...@meshy.org> wrote: > Robert McIntyre <r...@mit.edu> writes: > >> what the heck... >> >> mailing-list.print-from-threads> (Thread. ((constantly nil))) >> #<Thread Thread[Thread-100,5,main]> >> mailing-list.print-from-threads> (Thread. ((fn []))) >> #<Thread Thread[Thread-101,5,main]> >> mailing-list.print-from-threads> (Thread. ((fn [] nil))) >> #<Thread Thread[Thread-102,5,main]> >> mailing-list.print-from-threads> (Thread. (let [this-is-nil ((fn [] >> nil))] this-is-nil)) >> #<Thread Thread[Thread-103,5,main]> >> mailing-list.print-from-threads> (Thread. nil) >> ; Evaluation aborted. >> mailing-list.print-from-threads> (= nil (let [this-is-nil ((fn [] >> nil))] this-is-nil) ((fn [])) ((constantly nil))) >> true >> mailing-list.print-from-threads> >> >> all of these things are referentially transparent, so how is clojure >> differentiating between things that evaluate to nil and nil itself? > > It's picking the Thread(String name), constructor for some reason when > it gets an Object type hint. > > user> (let [^Object o nil] (Thread. o)) > #<Thread Thread[Thread-8,5,main]> > > -- > 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 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
