From: Julian Leviston <julian@...>
Date: 2013-04-07T00:43:09+09:00
Subject: Re: Why `local_variables` printing the name of local variables,while it has been garbage collected?

Local variables stick around

http://viewsourcecode.org/why/hacking/theFullyUpturnedBin.html

Julian

On 07/04/2013, at 12:45 AM, Love U Ruby <lists@ruby-forum.com> wrote:

> Why `local_variables` printing the name of local variables,while it has
> been garbage collected?
> 
> require 'weakref'
> 
> a = "abc"
> p local_variables
> p defined? a
> p a.to_s
> a =  WeakRef.new(a)
> p GC.enable
> GC.start
> p local_variables
> p defined? a
> p a.to_s
> 
> Output:
> 
> [:a]
> "local-variable"
> "abc"
> false
> [:a]
> "local-variable"
> true.rb:253:in `<main>': Invalid Reference - probably recycled
> (WeakRef::RefError)
> 
> -- 
> Posted via http://www.ruby-forum.com/.
>