From: Arlen Cuss <celtic@...>
Date: 2008-02-19T19:38:34+09:00
Subject: Re: super.index gives error

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Hi:

On Feb 19, 2008 9:34 PM, MohsinHijazee <mohsinhijazee@gmail.com> wrote:

> Hello!
>   I'm having a strange problem.
>
> class Super
>
>   def index
>      puts "some code"
>   end
> end
>
> class Base < Super
>
>   def index
>      super.index()    # Says you super is nil! nil.index and an
> error. What might be wrong?
>   end
> end
>
>
irb(main):001:0> class Super
irb(main):002:1>   def index
irb(main):003:2>     puts "some code"
irb(main):004:2>   end
irb(main):005:1> end
=> nil
irb(main):006:0> class Sub < Super
irb(main):007:1>   def index
irb(main):008:2>     super
irb(main):009:2>   end
irb(main):010:1> end
=> nil
irb(main):011:0> Sub.new.index
some code
=> nil
irb(main):012:0>

Technically, Super is also the `base' class, so I named it Sub. Just use
`super' -- super calls the method of the same name in the superclass.

HTH
Arlen

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