From: James Edward Gray II <james@...>
Date: 2005-09-29T02:51:16+09:00
Subject: Re: creating independent lambdas in loops

On Sep 28, 2005, at 12:42 PM, Ara.T.Howard wrote:

> On Thu, 29 Sep 2005, David A. Black wrote:
>
>
>> See http://www.rubyist.net/~matz/slides/rc2003/mgp00010.html and the
>> slides following that one.  I think the idea would be:
>>
>>  a = 1
>>  method_call {|a| a = 2; b = 3 }
>>  puts a  # 1
>>  puts b  # 3
>>
>
> oh gawd - that's horrible : variables exported from method scope to  
> the global
> (or enclosing perhaps?) one. eeks!
>
> being able to create top level vars from inside methods would, at  
> least,
> introduce a massive garbage collection issue and, at most,  
> introduce millions
> of very hard to track down bugs.
>
> im__h__o.

Yeah, I'm not fond of it either.  I believe the goal is to make  
variable behavior more consistent, but I don't like the "leakage".

James Edward Gray II