From: Christian Szegedy <szegedy@...>
Date: 2002-09-05T01:24:43+09:00
Subject: Re: option remember

Try this:

def f(x)
   x+1
end

$arg = []

def remember(func)
   Proc.new { |n| $arg[n] ||= method(func).call(n) }
end

x = remember(:f)
puts (x.call(1))
puts (x.call(1))