On Wed, Jan 19, 2011 at 4:06 AM, Laurent PETIT <laurent.pe...@gmail.com> wrote: > 2011/1/18 Ken Wesson <kwess...@gmail.com> >> >> On Tue, Jan 18, 2011 at 1:07 PM, Stuart Sierra >> <the.stuart.sie...@gmail.com> wrote: >> > You're not really aliasing the Vars, you're creating new Vars and >> > copying >> > the root values from the originals. >> > This leads to subtle bugs when the original Vars are dynamically rebound >> > or >> > redefined. That's why Compojure dropped `immigrate`. >> >> With 1.3, one could recreate a limited 'immigrate' that only imported >> the non-dynamically-bindable Vars from the target namespace. This >> wouldn't cause subtle bugs, only obvious ones if a wanted Var was >> dynamic and thus didn't get imported. > > No, because in 1.3 it will still (hopefully!) be possible to change the root > value of vars, be they dynamically rebindable or not.
No, because alter-var-root! is an unsafe, mutating operation that should not be done in production code, only at the repl during testing. -- 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
