clojure-本地替代运算符(例如"+"，"*"等)的正确方法 [英] clojure -- correct way to locally override operators such as "+", "*", etc

问题描述

覆盖"+"之类的方法的正确方法是什么?现在我有

What is the correct way to override a method like "+"? Right now I have

(defn- + [x y] (replacement x y))

但这会在命令行上显示警告.

but this results in warnings on the command line.

WARNING: + already refers to: #'clojure.core/+ in namespace: <MY-NAMESPACE>, being replaced by #'<MY-NAMESPACE>/+

推荐答案

您需要排除由核心导入的功能:

You need to exclude the functions that are imported by core:

 (ns your-ns
   (:refer-clojure :exclude [+ ...]))

 (defn + ...)

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