It's concise, and you know the history of clojure, thank you expert! 在 2013年8月22日星期四UTC+8下午5时01分55秒，Mikera写道： > > It's an old style type hint, indicating that the function returns a value > of class "Server" (the full Java class name is probably in an :import > declaration at the top of the file) > > The new style of type hint is just "^Server". > > Both forms of type hint still work at present, but you should prefer the > new style. > > On Thursday, 22 August 2013 16:50:42 UTC+8, ljcp...@gmail.com wrote: >> >> Hi, >> I read source code about run-jetty, as such, at 01 line: "(defn >> #^Server run-jetty", >> what's mean "#^Server", could you give a explanation? thank you! >> >> 01(defn #^Server run-jetty >> 02 "Serve the given handler according to the options. >> 03 Options: >> 04 :configurator - A function called with the Server instance. >> 05 :port >> 06 :host >> 07 :join? - Block the caller: defaults to true. >> 08 :ssl? - Use SSL. >> 09 :ssl-port - SSL port: defaults to 443, implies :ssl? >> 10 :keystore >> 11 :key-password >> 12 :truststore >> 13 :trust-password" >> 14 [handler options] >> 15 (let [#^Server s (create-server (dissoc options :configurator))] >> 16 (when-let [configurator (:configurator options)] >> 17 (configurator s)) >> 18 (doto s >> 19 (.setHandler (proxy-handler handler)) >> 20 (.start)) >> 21 (when (:join? options true) >> 22 (.join s)) >> 23 s)) >> >
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