clojure - 如何区分 Clojure-JVM 和 Clojure-CLR

Question

如何在 clojure-lang 脚本文件中检测该脚本是在 JVM 版本还是 CLR 版本上运行？

提前致谢。

Answer 1

此处使用的工具是读者条件:https://clojure.org/guides/reader_conditionals

... Reader conditionals are integrated into the Clojure reader, and don’t require any extra tooling beyond Clojure 1.7 or greater. To use reader conditionals, all you need is for your file to have a .cljc extension and to use Clojure 1.7 or ClojureScript 0.0-3196 or higher ...

... The standard reader conditional behaves similarly to a traditional cond. The syntax for usage is #? and looks like:

#?(:clj  (Clojure expression)
   :cljs (ClojureScript expression)
   :cljr (Clojure CLR expression)
   :default (fallthrough expression))