Is there a reason that Clojure has separate monitor-enter and monitor-exit specials, and not a built-in locking special?

I know there has been discussion about replacing the locking macro with a call through a java utility class instead of using those special forms, because the androind art analyzer doesn't like the shape of the bytecode clojure emits

(enter and exit can end up in different methods)

http://dev.clojure.org/jira/browse/CLJ-1472

Interesting, thanks

Looks like that’s been parked due to it being Android’s fault.

Correct AFAIK.

Since spec is putting a lot of emphasis on namespaced keys, is there a plan to add support for namespaced key destructuring, in {:keys []} ?

@arohner: that already exists:

user> (let [{:keys [a/x b/y]} {:a/x 42 :b/y "ehlo"}]
        [x y])
[42 "ehlo"]

@arohner: there is however a proposal to improve it further: http://dev.clojure.org/jira/browse/CLJ-1919

I swear I’ve seen errors with it before...

it had some bugs in 1.7

thanks!

@ragge I am not aware of any open issues related to them (although I found some exotic corners when writing the CLJ-1919 patch and fixed them)