From: "Durant S." <mobiledurant@...>
Date: 2007-06-22T08:23:59+09:00
Subject: Re: How do I intercept creation of fundatmental types, eg. [

MenTaLguY wrote:
> On Fri, 22 Jun 2007 05:28:24 +0900, "Durant S." <mobiledurant@yahoo.com> 
> wrote:
>> For example, I can catch this:
>> 
>> b = Array.new
>> 
>> but I cannot catch this:
>> 
>> x = [3,4,5]
>> 
>> It seems like I should be able to do it with the awesome power of ruby
>> :), but I can't figure out how.
> 
> It isn't possible without modifying the interpreter; in the latter case,
> the array is created directly by the interpreter, rather than via a 
> method call.
> 
> -mental

Ah, that's too bad. I was encouraged by seeing the count method show up 
in the "x = [3,4,5]" example

Thanks, all.

ps - I figured out how to save and call Array.new below. Fortunately, 
though I'm not sure why, this doesn't cause infinite recursion.


class Array

  @@count = 0

  orig_new = %s{Array.new}

  def Array.new(*args,&block)
    print "In Array.new"
    print " with #{args.inspect}" if args
    print " and #{block.inspect}" if block
    print "\n"
    print "\tself.class is #{self.class}\n"
    @@count += 1
    puts "\tcount is now #{@@count}"
    #super
    orig_new(*args,&block)
  end

  # ...

end

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