From: Tom Sawyer <transami@...>
Date: 2002-09-11T19:27:16+09:00
Subject: how to make proxy objects

looking for some tips on the best way to create a transparent proxy
object, i.e. an object to act as a go between. i wish ruby had such
things built in. (acutally i think it does but they aren't exposed in
the api) currently this is what i have as the bases, to get it
transparent i remove as many of the object's methods as possible and use
method_missing to then deal with the passing off of methods:

class Module
  public :undef_method
end

class Proxy_Object
    def initialize(peer, oid)
      methods.each { |mid|
        if not ['inspect',
                'instance_eval',
                'instance_variables',
                '__id__',
                'id',
                'new',
                'methods',
                'method_missing',
                'undef_method',
                'class',
                '__send__',
                'send'].include?(mid)
          self.class.undef_method(mid.intern)
        end
      }
    end

    def method_missing(mid, *args)
      ...act as proxy...
    end
end

-- 
tom sawyer, aka transami
transami@transami.net