> And, lest you think that confusing = and .equals is just a noobie
> mistake, let me point out what seems to be a bug in
> PersistentHashMap.java I just found based on this same confusion.  In
> particular, Objects are located in the map using Clojure's hash
> function, which is equivalent to .hashCode (and 0 for nil).  But, the
> equality check done on line 561 is done using Util.equal, which is
> equivalent to Clojure = ...

My apologies, this is not a bug.  Util.equals is not the same as
Clojure =, I was looking at Util.equiv.
Sorry to drag this up again, but just in case anyone was following
this I figured I should follow up.

> Actually, I'd be happy with a single type of hashing
> compatible with = rather than .equals if the idea of multiple flavors
> is not popular (as I imagine it probably won't be).

Also, I back down on this.  Clojure maps implement Java.util.Map, and
thus should be using .equals for equality (as they are now).  I still
might like variants of maps that use identical? or =, but not as the
default.

-Jason



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