On Jun 25, 2013, at 15:03 , Michael-Keith Bernard (SegFaultAX) 
<mkbernard....@gmail.com> wrote:

> https://github.com/clojure/clojure/blob/master/src/jvm/clojure/lang/APersistentMap.java#L24
> 
> The implementation assumes you're attempting to conj one of the following 3 
> things into the hash map:
>       • A MapEntry object
>       • A vector of the format [key value]
>       • A seq of MapEntry objects (commonly created via 
> http://docs.oracle.com/javase/6/docs/api/java/util/HashMap.html#entrySet() 
> and the like)

If I read you correctly, you're saying the reason 'into et al. can't accept 
arbitrary two-element collections for adding to a map is that APersistentMap's 
.cons method does something special with seqable things that aren't vectors. 
Right?

Any insight into why Rich would have written .cons that way, instead of putting 
that seq-of-MapEntry functionality into a separate method?

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