I'm new to Clojure and just getting my head around macros. As an
exercise I was trying different ways to wrap making a proxy for
java.util.Comparator and came up with two alternatives. I'm really not
sure how to judge what would favour one solution over the other, and
I'm curious if one style is preferred over the other around the
Clojure community.
First some data:
(def things #{:q :w :e :r :t :y :a :s :d})
(defn inverse-compare [a b] (* -1 (compare a b)))
Using a macro to generate a proxy to change sort order:
(defmacro cmprtr [f] `(proxy [java.util.Comparator] [] (compare
[a# b#] (~f a# b#))))
(sort (cmprtr inverse-compare) things)
Using a simple function to generate the proxy:
(defn cmpprx [f] (proxy [java.util.Comparator] [] (compare [a b]
(f a b))))
(sort (cmpprx inverse-compare) things)
Thanks,
Julian.
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