From: "David A. Black" <dblack@...>
Date: 2005-08-04T09:11:05+09:00
Subject: Re: strange: 'super' is not the parent class

Hi --

On Thu, 4 Aug 2005, Gioele Barabucci wrote:

> When I try to run the attached code (ar2.rb) with ruby 1.8.2 I get the
> following error:
>
> ../ar2.rb:41:in `packDecl': undefined method `packDecl' for
> "\000\000\000\005\000\000\000\002":String (NoMethodError)
>        from ./ar2.rb:27:in `pack'
>        from ./ar2.rb:54
>        from ./ar2.rb:49:in `each'
>        from ./ar2.rb:49
>
> It seems like "\0\0\0\5\0\0\0\2".packDecl is called instead of
> super.packDecl. Did I overwrite 'super'? Where?
>
> 	def packDecl
> 		length = @typeDataLength + @payloadLength
> 		return [length, @type].pack("LI")
> 	end

[...]

>
> 	def packDecl
> 		@typeDataLength = [@name].pack("a*").length
> 		return super.packDecl
> 	end

super here calls the previous packDecl, which returns a string.  You
then call the method packDecl on that string -- which is where you get
the undefined method error.

I think you just want "super" here, not "super.packDecl".


David

-- 
David A. Black
dblack@wobblini.net