获取clojure函数的代码 [英] get a clojure function's code

问题描述

在clojure中有一种方法在函数加载后获取函数的代码？

Is there a way in clojure to get a function's code after the function has been loaded?

没有像[未测试]这样的事情。

Ie. without doing something like [untested]

(defmacro blat [x] `(do (def code ~(quote (mexpand-all x)))
                        ~x)))
(blat (defn func [abc] (...)))

推荐答案

您可以使用 clojure.repl / source 函数。但是，这只有在符号解析到的var位于类路径上的.clj文件中时才有效。例如，您无法执行此操作：

You can get the source of a symbol using the clojure.repl/source function. However, this only works if the var for which the symbol resolves to is in a .clj file on the classpath. You can't, for example, do this:

user=> (defn foo [x] x)
#'user/foo
user=> (require 'clojure.repl)
nil
user=> (clojure.repl/source foo)
Source not found
nil

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