From: Suraj Kurapati <redmine@...>
Date: 2010-04-13T09:03:50+09:00
Subject: [ruby-core:29484] [Feature #3131] add Kernel#Hash() method like Kernel#Array()

Issue #3131 has been updated by Suraj Kurapati.


Hi,

matz wrote:
> since conversion from arrays only meaningful for specific case
> (array of 2-element arrays), I am not sure whether Hash() should
> support conversion from Array in general or not.

Hash::[] does not support conversion from odd-length Array (because
it is uncertain what Ruby must do with the 2n+1'th element) and will
raise an error in such case.  So, in my view, Kernel#Hash() need not
support conversion from odd-length Array either.

If you wish to avoid even-length Array conversion in Kernel#Hash()
because odd-length Array conversion is not supported, then I request
that Kernel#Hash() must still support conversion from empty Array
because Kernel#Array() already supports conversion from empty Hash:

>> Array({})
=> []

In summary, I request that Kernel#Hash() supports conversion from:

* nil
* Hash
* empty Array

It would be nice if Kernel#Hash() also supports conversion from:

* even-length Array

Thanks for your consideration.
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