From: ptkwt@...1.aracnet.com (Phil Tomson)
Date: 2002-04-28T04:21:01+09:00
Subject: Anyway to un-include a module?


This is from a discussion that came up on comp.object....

Let's say you have a Person class that you instantiate.  Now a Person can 
have different roles in life, let's say in this case there is the Student 
role and (after graduation) the Employee role.  So, we could do:

module Student
  def classes
    #return a list of classes the student is currently taking
  end
end

module Employee
  def employer
    #return the current employer
  end
end

class Person
  ... initialization and common stuff...
end

....

person = Person.new()
person.extend Student
....do some student things...
....later, after graduation...
person.extend Employee


So at the end the person object will respond to both Student and Employee 
methods, but what if you want it to only respond to Employee methods now 
and not respond to Studend methods anymore?


Is there something like...
person.unextend Student (?)
person.unmixin Student (?)

Phil