gistfile1.rb

require 'alias_dci' 
class A
  include AliasDCI::DataObject
  def foo
    "a"
  end
end

class C
    include AliasDCI::Context, AliasDCI::DataObject
  
  role :y
  role :z do
    def foo
      "z"
    end
  end
  def initialize(some_t, some_k)
    assign_named_roles(:y => some_t, :z => some_k)
  end
  
  def print
    in_context do
      puts "foo of y " + (y.foo.to_s)
      puts "foo of z " + (z.foo.to_s)
    end
  end
    def foo
        "context"
    end
    def rebind(a)
        initialize(a,self)
        print
        initialize(self,a)
    end
end

def do_it(some_t, some_k)
  c = C.new(some_t, some_k)
    c.print
    c.rebind(some_t)
    c.print
end
 
class DataObject
  include AliasDCI::DataObject
end

a = A.new
do_it(a, a) 

#outputs
#foo of y z
#foo of y z
#each object is only playing one role
#foo of y z
#foo of y z
#again one role for each object
#foo of y z
#foo of y z


#should have been
#foo of y a
#foo of y z
#foo of y a
#foo of y z
#foo of y context
#foo of y z