An alternative to subclassing

1 June 1986

journal article
Published by Association for Computing Machinery (ACM) in ACM SIGPLAN Notices

Vol. 21 (11) , 424-428
https://doi.org/10.1145/960112.28741

Abstract

Smalltalk-80 obtains some of its expressive power from arranging classes in a hierarchy. Inheritance is an important aspect of this hierarchy. An alternative organization of classes is proposed that emphasizes description instead of inheritance. This alternative can be used with compile-time type checking and retains the important characteristics of Smalltalk's hierarchy.

Keywords

COMPILE-TIME TYPE CHECKING
IMPORTANT CHARACTERISTIC
ALTERNATIVE ORGANIZATION
SMALLTALK-80 OBTAINS
EXPRESSIVE POWER
IMPORTANT ASPECT

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