From: Dennis Decker Jensen <ddj@...>
Date: 2001-02-28T21:40:07+09:00
Subject: [ruby-talk:11767] Re: Subclasses of a Class?


"Ron Jeffries" <ronjeffries@acm.org> wrote in message
news:7F52D0DA8D97F788.0F6A798E4B7F81D4.6C560F7068A0358A@lp.airnews.net
...
> If I do put inherited(by) into TestCase, won't I need to do super?
Is
> inherited empty? Is it guaranteed called back at every level?

- "super" will be empty unless you or some other fill it out.
- It calls back at every level.

From http://www.rubycentral.com/book/ref_c_class.html#inherited :
------
inherited aClass.inherited( aSubClass )

This is a singleton method (per class) invoked by Ruby when a subclass
of aClass is created. The new subclass is passed as a parameter.

class Top
  def Top.inherited(sub)
    print "New subclass: ", sub, "\n"
  end
end

class Middle < Top
end

class Bottom < Middle
end

produces: New subclass: Middle
New subclass: Bottom
------

Dennis Decker Jensen