From: Chris Carter <cdcarter@...>
Date: 2007-08-17T05:20:52+09:00
Subject: Re: Lazy function definition pattern in Ruby?

On 8/16/07, dblack@rubypal.com <dblack@rubypal.com> wrote:
> You could do this (and I think it's similar to the "once" technique
> [pattern?] that's used in the Date library and talked about in the
> Pickaxe):
>
>    def my_time
>      t = Time.now
>      (class << self; self; end).class_eval do
>        define_method(:my_time) { t }
>      end
>      t
>    end

Why not just use a closure, and do it the way you would in JS?

foo = proc { x=Time.now; foo = proc { x } }; foo.call

Then you just access it with foo[]/foo.call

-- 
Chris Carter
concentrationstudios.com
brynmawrcs.com