Read the documentation of commute carefully: http://richhickey.github.com/clojure/clojure.core-api.html#clojure.core/commute
commute acts at the end of the current dosync-block, regardless of when commute was applied inside it. That's the reason why you can't ref-set it after a commute; the commute isn't done. On Sun, Jul 25, 2010 at 11:19 AM, dennis <killme2...@gmail.com> wrote: > Alter or ref-set a ref after commute would throw a > IllegalStateException:Can't set after commute > > for example: > > user=> (def counter (ref 0)) > #'user/counter > (dosync (commute counter inc) (ref-set counter 3)) > java.lang.IllegalStateException: Can't set after commute > (NO_SOURCE_FILE:0) > > I want to know why this should not happen?is it a explanation here? I > can't understand what is the difference with commuting ref after ref- > set or alter.Thanks a lot. > > -- > 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 -- Moritz Ulrich Programmer, Student, Almost normal Guy http://www.google.com/profiles/ulrich.moritz -- 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
