A little bit OT, but for files where you prefer to write your declarations "top down" rather than "bottom up":
(defmacro top-down [ & body ] `(do ~@(reverse body))) then (defn utility-fn []) (defn high-level-fn [] (utility-fn)) becomes (top-down (defn high-level-fn [] (utility-fn)) (defn utility-fn []) ) :) 2010/8/14 Btsai <benny.t...@gmail.com>: > Continuing this train of thought... > > 1. The "declare" macro may be handy for declaring multiple names at > once. > > 2. Maybe one could use the functions in clojure.repl or clojure- > contrib.ns-utils to write something that automatically forward > declares everything needed? > > On Aug 13, 10:49 pm, Tim Daly <d...@axiom-developer.org> wrote: >> Suppose you make a file containing a >> (def foo) >> form for every defn in every file and then load that first? >> Does that solve the circular reference problem? >> >> Tim Daly >> >> >> >> Eric Lavigne wrote: >> > The (def g) in your example has the same effect as the (declare foo) >> > in my example. >> >> > I discussed two problems. The first problem, which you addressed, was >> > mostly just a warm-up for discussing a related problem that is more >> > severe. Where can I put (def g) so that two files can "require" each >> > other? >> >> > This is not a rare problem for me. Like Mike Anderson, I work around >> > it by putting extra thought into which package-level dependencies I >> > will allow, which sometimes necessitates creating more or fewer >> > packages than I otherwise would have created. >> >> > On Sat, Aug 14, 2010 at 12:13 AM, Wilson MacGyver <wmacgy...@gmail.com> >> > wrote: >> >> >> I rarely run into this. The few times I have, I just do >> >> >> (def g) ;creates a var g that is unbound >> >> >> (defn f [] >> >> (g)) ;ok >> >> >> (defn g [] ;f will call this >> >> nil) >> >> >> as shown by Rich at >> >> >>http://markmail.org/message/vuzvdr4xyxx53hwr#query:+page:1+mid:tzsd3k... >> >> >> On Fri, Aug 13, 2010 at 11:49 PM, Eric Lavigne <lavigne.e...@gmail.com> >> >> wrote: >> >> >>> Suppose I have two functions in the same file, and one depends on the >> >>> other: >> >> >>> (defn foo [x] (+ 1 x)) >> >>> (defn bar [x] (* 2 (foo x))) >> >> >>> I can't switch their order without adding extra forward-declaration >> >>> code, which is redundant: >> >> >>> (declare foo) >> >>> (defn bar [x] (* 2 (foo x))) >> >>> (defn foo [x] (+ 1 x)) >> >> >> -- >> >> Omnem crede diem tibi diluxisse supremum. >> >> >> -- >> >> 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 -- 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
