定义 Clojure 宏的同义词 [英] define a synonym for a Clojure macro

问题描述

因此从 Clojure 宏创建同义词一个函数，我发现 def 不能用于定义宏的同义词.以下是我尝试过的 Clojure 不允许的示例.

So following on from Clojure macro to create a synonym for a function , I discovered that def can't be used to define a synonym for a macro. Below are examples I tried that Clojure doesn't allow.

;(def def-function defn)
;(def case cond)
;(def function fn)

是否可以在 Clojure 中为宏定义同义词/别名?是否需要使用 defmacro?

Is it possible to define synonyms/aliases for macros in Clojure? Would it require using defmacro?

推荐答案

您可以使用宏:

user=> (defmacro def-function [& args] `(defn ~@args))
#'user/def-function
user=> (def-function g [] 2)
#'user/g
user=> (g)
2

或者你可以使用clojure.contrib.def/defalias:

user=> (use 'clojure.contrib.def)
nil
user=> (defalias def-function defn)
#'user/def-function
user=> (def-function g [] 2)
#'user/g
user=> (g)
2

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