From: Mike Hamilton <mikehamiltonca@...>
Date: 2007-05-15T01:55:56+09:00
Subject: Re: Ruby Inheritance Question

OK - I figured out what you mean! I created a library with a class 
called Time and added my methods and it all worked great!!! Thanks for 
the tip, I had no idea you could do that in ruby!

Sean T Allen wrote:
> Because you are returning the result of '-'.
> 
> If you don't specifically have that return an RTDate, it will return the
> result of Time '-'
> which is either:
> 
> time - time => float
> time - numeric => time
> 
> yours is the second.
> 
> As ruby classes are 'open' and you can add methods to them, inheritance
> might not even
> be how you want to approach this problem. If RTDate is adding methods
> and not storing
> additional instance or class data, you should just be adding yesterday
> and whatever else
> as part of the Time class.


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