I want the next version of Midje to continue to support Clojure 1.3. I also want to use `leiningen.core.project`. `leiningen.core.project` uses `ex-info`, which was introduced in 1.4. I want to write my own version of `ex-info` and put it into `clojure.core` when we're running under 1.3 --- in such a way that `leiningen.core.project` will see that fake version when it's `required`.
I thought I could do this: user=> (in-ns 'clojure.core) clojure.core=> (defn ex-info [& args] "stuff here") clojure.core=> (in-ns 'user) user=> (require 'leiningen.core.project) Indeed, that works fine in the repl. However, it doesn't work when the first three lines are in a file. Specifically, this fails: (ns midje.repl (:require ... midje.util.backwards-compatible-utils [leiningen.core.project :as project] ... when `m.u.backwards-compatible-utils` contains: (when (ecosystem/clojure-1-3?) (in-ns 'clojure.core) (defn ex-info ...) (in-ns 'midje.util.backwards-compatible-utils)) Why not? What should I do instead? ----- Brian Marick, Artisanal Labrador Contract programming in Ruby and Clojure Occasional consulting on Agile Author of /Functional Programming for the Object-Oriented Programmer/: https://leanpub.com/fp-oo -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en