From: Henry Savr <hsavr@...>
Date: 2006-08-18T02:21:13+09:00
Subject: Re: How to - Change operator behaviour

Mark Van Holstyn wrote:
> In your example, you would be calling the method '>' on t1...
> 
> t1.>(t2)
> 
> You can define > in the class you would like to have your functionality 
> in.
> 
> class Example
>   def >( other )
>     #do soem comparison
>   end
> end


Sorry, I see, that my initial question was not asked clearly.
I know about the "> trick."

The question actually was:

I want to redefine a Time method >

It's new behaviour should be like this:

class Time1 < Time
  def >(other)
    case other.class.name
	when "Time"
		return self > other # but use the OLD > method definition.
	when ("NilClass")
		return true
	else
	      # do what Ruby does originally in this case : when one operand is 
Time, and other not the Time.
	end
end

So question was
1. How to instruct Ruby to use OLD definition?
2.	a)What Ruby does if it sees one parameter of Time class and other 
non-Time?
	b)How to say him to do the same?
Thank you

Henry

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