From: "list. rb" <list.rb@...>
Date: 2007-06-14T10:16:50+09:00
Subject: Dynamically referencing class constants?

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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

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