From: Gavin Sinclair <gsinclair@...>
Date: 2009-11-11T14:25:12+09:00
Subject: Re: RCR enumerable extra into core

Brian Candler wrote:
> one logical conclusion (or extreme viewpoint) is that you could always
> return an Enumerator, even for
>
>    map { |x| x*x }
>
> I wasn't saying that Ruby does anything like this, and it's a tangent to
> the original thrust of map(:foo).

That's a pretty yucky option.  I use map all the time, and I expect to
get an array back.  Adding to_a everywhere is not cool.

Lazy evaluation is cool, though.  But it would need a thorough
reconsideration of the language.  And considering that Ruby is doing
pretty well without it...

--
Gavin Sinclair