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2 points by rocketnia 2506 days ago | link | parent

"I've been taking this approach for granted for months, but no longer recall how unconventional it is."

I don't know whether it's unconventional, but it can be implemented in single-threaded Arc, and I use the name "w/global" where you use "making." If your 'making plays nicely with threads and continuations, then I guess I'd consider it strictly more expressive than Arc, but it's up to you to decide if this expressiveness is helpful.

At one point Clojure supported dynamic binding of module-level variables using (binding ...). For some reason, it looks like they changed this policy so the dynamic binding would only work with variables declared (def ^:dynamic ...).[1] So it looks like Clojure programs now use dynamic scope just as explicitly as Arc programs use Racket parameters, but with a less first-class treatment. I'm not a Clojure expert, so I could be leaving out critical details here.

[1] http://clojuredocs.org/clojure_core/clojure.core/binding