Inheritance (object-oriented programming)
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Issues and alternatives
Implementation inheritance has been controversial among programmers and theoreticians of object-oriented programming since at least the 1990s. Among the critics are the authors of Design Patterns, who advocate instead for interface inheritance, and favor composition over inheritance. For example, the decorator pattern (as mentioned above) has been proposed to overcome the static nature of inheritance between classes. As a more fundamental solution to the same problem, role-oriented programming introduces a distinct relationship, played-by, combining properties of inheritance and composition into a new concept.
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