From: raganwald@... (Reginald Braithwaite-Lee)
Date: 2002-08-03T05:55:13+09:00
Subject: Re: Call-by-need and/or Delayed Evaluation

raganwald@yahoo.com (Reginald Braithwaite-Lee) wrote in message news:<243c635a.0207261955.54ae0bf@posting.google.com>...
> Hello:
> 
> Has there been any work on using Ruby's closures to implement
> call-by-need semantics, such as the freeze and thaw or delay and force
> macros in Lisp?

Since I couldn't find any, I wrote one for practice. I then got
ambitious and wrote a Denumerable module that implements potentially
infinite collections.

http://www.braithwaite-lee.com/tips/denumerables.html