> > (fn [_ _] ;dispatch-function checks for OS - ignores args > (let [os (System/getProperty "os.name")] > (if (.startsWith os "Mac OS") :Linux (keyword os))))) >
This seems like a very poor use of multi-methods. Multi-methods exist to provide both dynamic and open dispatch. In this case, the dispatch function is completely static. If you don't need dynamism or openness, then you're better off with a simple case form at the top level: (case platform :linux (def halt [root-pwd minutes-after] ...) :windows ... ... (def halt [& args] (throw ...))) If you prefer the appearance of top-level forms, or need the openness, you could pretty easily implement a static version of defmulti & defmethod which ensure you only pay the dispatch cost once at startup, rather than on every invocation. -- 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
