From: Jeremy Kemper <jeremy@...>
Date: 2007-12-20T18:48:25+09:00
Subject: Re: Some Ruby 1.9 loose ends to tie up

On 12/17/07, Charles Oliver Nutter <charles.nutter@sun.com> wrote:
> David Flanagan wrote:
> > Matz,
> >
> > I've got a few lingering questions about Ruby 1.9 and I'm hoping you can
> > provide a definitive answer so I can document them definitively:
> >
> > 1) Will Proc.binding be made to work in 1.9?
>
> I sure hope not. In my opinion Proc.binding and friends break
> encapsulation of a caller's local variables. In the same way that retry
> outside of a rescue is dangerous, because it breaks expectations in the
> caller about how their arguments and receiver will be evaluated,
> proc-as-binding breaks a caller's expectations about the visibility of
> local variables.
>
> There's optimization concerns as well...but I know those are less
> convincing.

Just added!

http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/proc.c?r1=14360&r2=14359

jeremy