From: Chad Fowler <chadfowler@...>
Date: 2001-12-23T11:16:57+09:00
Subject: [ruby-talk:29336] Re: a better way?

Ron Jeffries wrote:

> I was writing a little code that cached a function value, and wound up
> with this:
> 
> 	result = @@save[self]
> 	return result if result
> 
> I don't see a way to do it in one line unless I'm willing to do the
> lookup twice. Am I missing something?
> 

I'm sure this is complete overkill for what you're looking for (since 
you were wanting to fit it into a single line), but I thought it was 
worth a mention that Robert Feldt has created something called "memoize":

http://www.ce.chalmers.se/~feldt/ruby/extensions/memoize/

Chad