On Sep 22, 5:52 pm, Phil Hagelberg <p...@hagelb.org> wrote: > On Thu, Sep 22, 2011 at 2:19 PM, Chouser <chou...@gmail.com> wrote: > > It looks like each top-level form currently gets its own fresh > > DynamicClassLoader. > > > [...] > > > (do (def a #()) (def b #())) > > If you'll pardon a nit-pick, this example is somewhat misleading since > do forms are special-cased by the compiler so that each form they > contain is treated as a top-level form. > > Witness: > > (do (def a #()) (def b #())) > (= (.getClassLoader (class a)) (.getClassLoader (class b))) > ;; => false > > ;; we can avoid the compiler's special-casing > (when true (def a #()) (def b #())) > (= (.getClassLoader (class a)) (.getClassLoader (class b))) > ;; => true > > The point you are getting at is correct, but it's better shown without do.
Meta-nitpick: I think the usual way to avoid the special-casing is (let [] ...), which is in fact what some built-in constructs like deftype expand to. -- 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
