On Fri, Mar 27, 2009 at 10:06 AM, hjlee <hj.d....@gmail.com> wrote: > > Hi, all. > > Story: > I couldn't understand my "binding" form behavior. > > (binding [*print-level* 2 *print-length* 2] (some-function)) > > but, some outputs didn't confirm the bound value. > > After some investigation on my code and output, I found the reason. > - I used pmap >
> Well, I can use "set!", but I think that's not a solution. > I could "set!" *print-level* and *print-length. > But I couldn't "set!" other defs defined in other ns. > (I guess that's not intended use of "set!". right?) > And think about something like *out*. > You could always propagate the bindings like so: (binding [*print-level* 2 *print-length* 2] (some-function *print-level* *print-length*)) Or write a wrapper function that takes the binding values, rebinds them, and calls some-function. Of course, doing so seems like it exposes a leaky abstraction. You wouldn't necessarily expect that you'd have to write it one way for map and another for pmap, but maybe it is just a case of "programmer beware." Paul --~--~---------~--~----~------------~-------~--~----~ 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 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 -~----------~----~----~----~------~----~------~--~---
