This model combines object oriented programming with information hiding. It helps you writing large application, where scoping is necessary, because it provides class-oriented scoping. Selector invocation and instance variable usage of the active object is straight forward, since both make use of the active object.
Late binding is efficient and easy to use.
State-smart objects parse selectors. An implementation in ANS Forth is available. Go to the first , previous , next , last section, table of contents .