From: Daniel Kelley <news-1074866593@...>
Date: 2004-01-23T23:19:58+09:00
Subject: Re: [BEGINNER] Usage of 'super'


Michael Weller <michael@gutschi.de> writes:

> ts schrieb:
> 
> > Just write it like this
> >
> >M> class B < A
> >M> 	def initialize(x, y)
> >M> 		super
> >
> >                super()  # call super with no args
> >
> >M> 		@myX = x
> >
> >  
> >
> That doesn't do the trick (btw: super is different from super()?).

I should. I just checked with 1.6.7 and 1.8.0 with:

(r1.rb)
class A
	def initialize
          puts 'Class A init'
          @time = Time.new #here the error happens
		#inits some instance variables
	end
end

class B < A
	def initialize(x, y)
		super()
		@myX = x
		@myY = y
	end
end

(r2.rb)
require 'r1.rb'

b = B.new('sth', 'anotherSth')
puts b.to_s

(test)
1024>ruby r2.rb 
Class A init
#<B:0x40096aac>
1025>/usr/local/src/ruby-1.6.7/ruby r2.rb 
Class A init
#<B:0x4009989c>


Replacing 'super()' with 'super' gives:

1027>ruby r2.rb 
../r1.rb:18:in `initialize': wrong number of arguments(2 for 0) (ArgumentError)
        from ./r1.rb:18:in `initialize'
        from r2.rb:10:in `new'
        from r2.rb:10




> 
> Maybe this is important:

Nope. Not it.

> class A
>     def initialize
>        @time = Time.new #here the error happens
>     end
> end
> 
> Maybe does A pass the params to Time which doesn't define a no-arg init?
> 
> Michael
> 

-- 
Daniel Kelley - San Jose, CA
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