From: Pit Capitain <pit@...>
Date: 2005-07-20T05:17:24+09:00
Subject: Re: Instance Eval of a Proc

Phrogz schrieb:
> I know that Ruby doesn't currently have first-class functions, but I'm
> trying to determine if there's a way to do the equivalent of the above.

As has been shown in the original post, Ruby's lambdas are what you call 
first-class functions. When called via instance_eval, they are executed 
within a new self and have access to self's instance variables and methods.

> Is there any way to invoke a method defined on one class within the
> scope of an instance of any other class?

It seems that a method, even if unbound or converted to a proc, always 
keeps a connection to its class. I think the only way I've seen yet to 
achieve what you want was using the evil library.

Regards,
Pit