4.2 User-defined classes

A user-defined class is like a structure or a record type in other languages. When you define a class, you specify its name, its direct superclasses, and its slots. A slot has a name and a type. Normally, each instance stores its own value for the slot. A class inherits the slots defined by its superclasses, and it can define more slots if it needs them.

4.2.1 - The <time-of-day> class
4.2.2 - The type constraint of a slot

N Feinberg/S E Keene/R Mathews/P Tucker Withington, DYLAN PROGRAMMING, (c) 1997 Harlequin Inc. Reproduced by permission of Addison-Wesley Longman Publishing Company, Inc. All rights reserved. No further copying, downloading or transmitting of this material is allowed without the prior written permission of the publisher.