From: "Mauricio Fernández" <batsman.geo@...>
Date: 2004-08-18T09:06:32+09:00
Subject: Re: Getting the binding of the caller

On Wed, Aug 18, 2004 at 07:52:18AM +0900, Michael Neumann wrote:
> Hi,
> 
> Is there a way to get the binding of the caller?
> 
>   class A
>     def m(b=binding)
>       eval("self", b)
>     end
>   end
> 
>   A.new.m           # => #<A:0x81e1bec>
>   A.new.m(binding)  # => main
> 
> What I want is exactly the second, but without specifying "binding" 
> explicitly.
> 
> Possible or not?

Sure.
Take a look at Florian Gro�' Binding.of_caller at
http://noegnud.sourceforge.net/flgr/binding_of_caller.rb

In some contexts, you can avoid the overhead of #callcc, but you get an
ugly interface in exchange.

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