nm, I need to use 'use'. I am unclear as to the difference between refer, import use, and require.
Chris On Dec 20, 9:15 am, chris <cnuern...@gmail.com> wrote: > That helped, thanks Christophe. > > I have one more problem: > > I put it in a util file, under a util namespace: > > (ns lambinator.util) > > (defmacro sets! [vars & rest] > `(do ~@(map (fn [flds] `(set! (. ~vars ~(first flds)) ~(second > flds))) (apply array-map rest)))) > > Now I want to use it outside that namespace. It seems that I have to > do two things when I load from a jar... > > (require 'lambinator.util) > > (lambinator.util/sets! c fill GridBagConstraints/VERTICAL weightx 1.5) > > How do I use the function/macro outside the namespace it was created > in without prefixing it with lambinator.util? Import, require don't > seem to do what I want... > > Chris > > On Dec 20, 12:28 am, Christophe Grand <christo...@cgrand.net> wrote: > > > chris a écrit : > > > > Hello, I am gearing up to write some swing code, specifically some > > > stuff where I want to use the grid bag layout system, and I remember > > > something I hated about java: > > > > --c.fill = GridBagConstraints.HORIZONTAL; > > > c.weightx = 0.5; > > > c.gridx = 2; > > > c.gridy = 0; > > > -- > > > > You repeated c all over the place so you didn't dare name it something > > > reasonable. > > > > I noticed in some closure code this looks about the same (actually > > > worse): > > > (set! (.fill c) GridBagConstraints/HORIZONTAL) > > > (set! (.anchor c) GridBagConstraints/PAGE_END) > > > (set! (.weightx c) 1.0) > > > (set! (.weighty c) 1.0) > > > Your sets! macro seems a good idea to me. > > > When an object provides proper accessors, you can write: > > > (doto c > > (.setFill GridBagConstraints/HORIZONTAL) > > (.setAnchor GridBagConstraints/PAGE_END) > > (.setWeightx 1.0) > > (.setWeighty 1.0)) > > > But in your case, the only way to use doto I can think of is: > > > (doto c > > (-> .fill (set! GridBagConstraints/HORIZONTAL)) > > (-> .anchor (set! GridBagConstraints/PAGE_END)) > > (-> .weightx (set! 1.0)) > > (-> .weighty (set! 1.0))) > > > which does not repeat c but is even slightly longer than the naive > > sequence of set!. > > > I think that you could remove some parens from your macro form to just > > write: > > > (sets! c > > fill GridBagConstraints/HORIZONTAL > > weightx 1.0) > > > (I think it's a more idiomatic form, see cond or bindings: pairs aren't > > paired together.) > > > (defmacro sets! [vars & rest] > > `(do ~@(map (fn [flds] `(set! (. ~vars ~(first flds)) ~(second flds))) > > (apply array-map rest)))) > > > Christophe --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
