From: MenTaLguY <mental@...>
Date: 2005-11-06T01:26:11+09:00
Subject: Re: lazy.rb

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On Sat, 2005-11-05 at 14:37 +0900, Trans wrote:
> (Why is 'self' being passed to the computation though?)

For convenience in circular programming; it's an easier way for the
computation to get access to its own future result.

Rather than having to do:

 result =3D nil
 result =3D promise {
   ... do something with result ...
 }

It allows simply:

 promise { |result|
   ... do something with result ...
 }

-mental

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