From: "Wayne E. Seguin" <wayneeseguin@...>
Date: 2007-08-09T22:47:07+09:00
Subject: Re: Deep Clone of array?

--Apple-Mail-3-54128659
Content-Transfer-Encoding: 7bit
Content-Type: text/plain;
	charset=US-ASCII;
	delsp=yes;
	format=flowed

On Aug 09, 2007, at 09:30 , Wayne E. Seguin wrote:
> <snip>
>
> hashish =  { :a => "a", :b => "b", :c => ["a","b","c"] } # some  
> arbitrary object with references to other objects
>
> hashish_deep_copy = Marshal.load( Marshal.dump( hashish ) )
>
> hashish_deep_copy will then be a deep copy of hashish.
>
> <snip>

I have a library that I include in my projects which defines a  
deep_copy method on object:

class Object
   def deep_copy( object )
     Marshal.load( Marshal.dump( object ) )
   end
end

Also please note that this method has some limitations due to  
limitations of Marshall. For example you won't be able to really dump  
IO, Proc, Singleton, Binding and a few other objects (Read the  
Marshal docs for more info).

I hope this also helps,

   ~Wayne

s///g
Wayne E. Seguin
Sr. Systems Architect & Systems Administrator


--Apple-Mail-3-54128659--