From: Pit Capitain <pit@...>
Date: 2003-02-04T19:01:17+09:00
Subject: Re: Local variables & blocks

On 4 Feb 2003 at 14:27, Jim Weirich wrote:

> (... Y combinator ...)
> 
> As a final thought along the recreational uses of "proc", I leave you
> with the following code inspired by the thread on block and local
> variables.  
> 
>   def weird
>     x = nil
>     [proc {x}, proc {|x|}]
>   end
> 
> What does it do?  Hint: This works in the current version of Ruby, but
> it will fail when/if Matz ever implements the new rules for blocks and
> local scope.

Hi Jim,

thanks for the weird Y fun :-)

Isn't your weird the same as

  def weird
    x = nil
    [proc {x}, proc {|v| x=v}]
  end

and wouldn't this work under the new rules, too?

Regards,
Pit