Prototypes and Delegation

  • Peter Wisskirchen
Part of the Symbolic Computation book series (SYMBOLIC)


The model for object-oriented programming has so far relied mainly on that supported in Smalltalk-80 classes, methods, instances and (hierarchical) inheritance. Every object is an instance of a class. The class manages methods and variables for its instances. Classes form a hierarchy that determines how methods are inherited. New instances are generated by the message new sent to the class. An instance can be copied; this returns a duplicate belonging to the same class.




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Copyright information

© Springer-Verlag Berlin Heidelberg 1990

Authors and Affiliations

  • Peter Wisskirchen
    • 1
  1. 1.Institute for Applied Information TechnologyNational Research Center for Computer Science (GMD)Sankt Augustin 1Germany

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