Ruby: Mixing in a Module immediately after an object's Singleton class
There are two ways to insert a Module above the objects singleton class but before the objects Class.
# You can open the class definition body of a singleton class and add instance methods, class methods, and constants. # You do this by using the 'class' keyword and a CONSTANT class C def hello puts "this is a hello yo." end end module M def talk puts "hello." end end # Example 1 example1 = C.new class << example1 include M end # Call the Singleton method example1.hello # Call the Module Mix-in example1.talk # Example 2 example2 = C.new example2.extend(M) example2.talk