From: "ara.t.howard" <ara.t.howard@...>
Date: 2008-07-26T01:40:00+09:00
Subject: Re: simple module for "count my instances" behaviour


On Jul 25, 2008, at 7:22 AM, Julien Thewys wrote:

> I meant other than for hacking purpose.



there are many good reasons - one is for subclassing, if you override  
new clients do not have to remember to call 'super'

class C
   def C.new *a, &b
     (object = allocate).instance_eval do
       init *a, &b
       initialize *a, &b
       self
     end
   end

   def init
     @you = 'do not have to remember to call this'
   end
end


class D < C
   def initialize
   end
end


another reason is for instance in the case of dike.rb, by re-defining  
'new' it can track object creation, register a finalizer, and thereby  
track the object lifecycle to detect memory leaks

regards.

a @ http://codeforpeople.com/
--
we can deny everything, except that we have the possibility of being  
better. simply reflect on that.
h.h. the 14th dalai lama