From: David King Landrith <dave@...>
Date: 2003-01-01T13:50:25+09:00
Subject: Re: Probems extending Array

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Thanks!  That fixed my problem.

Incidentally, how do you get a reference to the superclass?

On Tuesday, December 31, 2002, at 01:50 PM, Dave Thomas wrote:

> On Tue, 2002-12-31 at 11:51, David Landrith wrote:
>> I'm having two problems extending the array class.
>>
>> First, I am getting instances where super == nil.
>
> Super isn't a pointer to the parent class's implementation: it's a call
> to the method you're in, but in the partent class.
>
>   class A
>     def fred(name)
>        puts "hello #{name}"
>     end
>   end
>
>   class B < A
>     def fred(name)
>        super("walter")
>        super               # calls it with current params
>     end
>   end
>
>   b = B.new
>   b.fred("dave")
>
>      =>  hello walter
>          hello dave
>
>
> Cheers
>
>
> Dave
>
-------------------------------------------------------
David King Landrith
   (w) 617.227.4469x213
   (h) 617.696.7133

One useless man is a disgrace, two
are called a law firm, and three or more
become a congress   -- John Adams
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-------------------------------------------------------
David King Landrith
   (w) 617.227.4469x213
   (h) 617.696.7133

One useless man is a disgrace, two
are called a law firm, and three or more
become a congress   -- John Adams
-------------------------------------------------------
public key available upon request

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