From: Mauricio Fernandez <mfp@...>
Date: 2006-11-13T00:27:02+09:00
Subject: Re: Create local variable in Binding after it's creation

On Sun, Nov 12, 2006 at 11:27:07PM +0900, Christian Surlykke wrote:
> S�ndag 12 november 2006 15:18 skrev Mauricio Fernandez:
> 
> > If you try to use 'a' before the parser sees 'a = ...', it will be considered
> > a method call, and you'll get a NameError even if you give it a value
> > afterwards/in eval.
> 
> Ah, I see. Thanks.
> 
> > 
> > BTW. this is changing in 1.9.
> 
> In what way? My example seems to work the same way with ruby-1.9...

Both
 eval("a = 7")
 eval("a")
and
 eval("a = 7", binding)
 eval("a")
will raise a NameError in the future, so you'll have to do
 binding = binding  # heh
 eval("a = 7", binding)
 eval("a", binding)

[ruby-core:09388]

This can be seen as a step towards less inclusive closures and lambda lifting.

-- 
Mauricio Fernandez  -   http://eigenclass.org   -  singular Ruby