From: "David A. Black" <dblack@...>
Date: 2004-08-13T05:57:45+09:00
Subject: Re: getting object attributes

Hi --

On Fri, 13 Aug 2004, Joe Laughlin wrote:

> David A. Black wrote:
> > Hi --
> >
> > On Thu, 12 Aug 2004, Joe Laughlin wrote:
> >
> >> I want to do something similar to this:
> >>
> >> class Foo
> >>   @goo = 2
> >>   @boo = 5
> >> end
> >>
> >> foo = Foo.new
> >>
> >> ["goo", "boo"].each do |attribute|
> >>   puts foo.attribute   # should print out 2 on the first
> >> loop, 5 on the second loop
> >> end
> >>
> >>
> >> Ideas?
> >
> > Clarification requested:
> >
> > Do you want instances of foo to be able to get access to
> > the instance variables of Foo itself?  Or do you want
> > instances of Foo (such as foo) to have their own
> > instances variables called @goo and @boo, and reader
> > methods to access them?  You could do a bunch of
> > different variations on this but I'm not sure which
> > scenario you're trying to implement.
> >
> >
> > David
> 
> The second one, I believe.

Then what you want would probably be something like:

  class Foo
    attr_reader :goo, :boo
    def initialize
      @goo, @boo = 2, 5
    end
  end

  foo = Foo.new
  [:goo, :boo].each {|m| puts foo.send(m) }


David

-- 
David A. Black
dblack@wobblini.net