From: "Christoph R." <chr_news@...>
Date: 2003-09-17T23:27:48+09:00
Subject: Re: clearing a parameter in Ruby?

Austin Ziegler wrote:
....
> class ImmutablesArray < Array
>   def push(it)
>     it.freeze
>     super
>   end
> end
> 
> Roughly. There's a few other methods you would want to implement (like #pop) 
> to unfreeze as you pop the item, but this should work in general.

You can't ``unfreeze'' frozen objects (this should be quite easy in C b.t.w.) .
....

/Christoph