Is it possible to retrieve the condition map of a defn'd var?

Question

If I've defined a function with defn and a condition map containing :pre and :post forms, how can I retrieve that condition map? I notice that

(meta #'fn-name) 

doesn't contain the condition map. I'm specifically looking for the :pre conditions (in order to derive a predicate that's equivalent to them but doesn't assert). Is there any way to recover them other than walking the function body looking for asserts?

Answer 1

Unfortunately, they aren't stored anywhere after processing the fn macro. They're prepended/appended directly to the body of the function as asserts. You can check the relevant source lines in fn.

As a workaround, you could probably write your own variant of defn that grabs the :pre and :post conditions and stores them as metadata.