Jos Koot wrote at 07/18/2010 09:26 AM:
(hash-ref a-hash a-key a-value) In the past a-value was required to be a procedure. Now it can be anything.
[...]
In short, I do not well understand the reason to relax the contract of hash-ref and hash-ref!.
This behavior seems a little on the uncomfortable side of automagical to me, and -- although I can understand the desire to keep the short name -- I would've preferred separate procedures for the default-thunk and default-value variations.
Perhaps the short-name procedure could be the automagical one, and there could be longer-name procedures, like "hash-ref/default-thunk" and "hash-ref/default-value", for people who prefer a little less automagic in that regard.
-- http://www.neilvandyke.org/
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