From: Chris Carter <cdcarter@...>
Date: 2007-06-14T10:23:50+09:00
Subject: Re: Dynamically referencing class constants?

On 6/13/07, list. rb <list.rb@gmail.com> wrote:
> How can I do this?
>
> Socket.constants.each {|i|
>     puts Socket::#{i}                  ##does not work of course
> }
>
>
> #################################
> Futile attempts:
>
> irb(main):023:0> puts Socket::SEEK_CUR   ##works of course, the rest does
> not
> 1
> irb(main):029:0> puts Socket.new.SEEK_CUR
> ArgumentError: wrong number of arguments (0 for 3)
>         from (irb):29:in `initialize'
>         from (irb):29:in `new'
>         from (irb):29
> irb(main):030:0> x = "SEEK_CUR"
> => "SEEK_CUR"
> irb(main):031:0> Socket::#{x}
> irb(main):032:0*
> irb(main):033:0* end
> NoMethodError: undefined method `end' for Socket:Class
>         from (irb):33
> irb(main):034:0> Socket::send("SEEK_CUR")
> NoMethodError: undefined method `SEEK_CUR' for Socket:Class
>         from (irb):34:in `send'
>         from (irb):34
>

Socket.const_get("SEEK_CUR")

-- 
Chris Carter
concentrationstudios.com
brynmawrcs.com