From: Warren Brown <WBrown@...>
Date: 2004-08-20T06:21:31+09:00
Subject: Re: Obtaining object in const_missing

T.,

> I'm stumped. Is there any way to do this?
>
>  class Object
>    def self.const_missing(name)
>      p self  # => X
>      # Okay, but how do I get at object x?
>      x = ?
>      if x.respond_to?(:myconstant)
>         return "Gotchya"
>      else
>         raise  # proper error?
>      end
>    end
>  end
>
>  class X
>    def myconstant
>      puts NewConstant
>    end
>  end
>
>  x = X.new
>  x.myconstant

    As our own comment points out, self is class X, not the instance of
class X currently pointed at by the variable x.  What you want to do is
call Module#method_defined? instead of Object#respond_to?, so your if
statement becomes:

    if method_defined?(:myconstant)


    I hope this helps.

    - Warren Brown