From: dblack@...
Date: 2003-05-09T08:16:04+09:00
Subject: Re: Can a global be a constant?

Hi --

On Fri, 9 May 2003, Jim Freeze wrote:

> Ok, <stupid question> so how would you
> access the state object in the code below without
> making it a global as I did?  </stupid question>
>
> class App
>   State = ::Struct.new(:debug, :verbose)
>   $state = State.new(true, false)
>   def main
>     Work.new
>   end
> end
>
> class Work
>   def initialize
>     puts $state.debug
>   end
> end
>
> App.new.main

Would this be suitable?

  class App
    class << self
      attr_reader :state
    end
    State = Struct.new(:debug, :verbose)
    @state = State.new(true, false)
    def main
      Work.new
    end
  end

  class Work
    def initialize
      puts App.state.debug
    end
  end

  App.new.main


David

-- 
David Alan Black
home: dblack@superlink.net
work: blackdav@shu.edu
Web:  http://pirate.shu.edu/~blackdav