DMCA
Dylan Interim Reference Manual (1994)
BibTeX
@MISC{Shalit94dylaninterim,
author = {Andrew Shalit and Orca Starbuck and Jeffrey Piazza and David Moon and Steve Strassmann and Kim Barret},
title = {Dylan Interim Reference Manual},
year = {1994}
}
Share
 |
 |
 |
 |
||
OpenURL
Abstract
Class A class that is not intended to have direct instances. Its general instances obey an interface implemented by subclasses. The opposite of an abstract class is a concrete class. Instantiable Class A class that can be used as the first argument to make. The opposite of an instantiable class is an uninstantiable class. Note that an abstract class may be instantiable. Sealed Class A class that cannot be subclassed, other than those subclasses explicitly defined in the same library. The opposite of a sealed class is an open class. 5 A heterarchy---also called a directed acyclic graph (DAG)---is like a hierarchy, except that nodes can have multiple parents. Dylan classes are in a heterarchy because Dylan supports multiple inheritance. Dylan Interim Reference Manual June 3, 1994 5 Primary Class A class that may be used only as the primary superclass in multiple inheritance. It is illegal for a class to have two primary superclasses unless one is a subclass of the other. The opposite o...
Keyphrases
dylan interim reference manual abstract class primary superclass multiple inheritance primary class class uninstantiable class instantiable class multiple parent sealed class dylan class open class class class instantiable class class general instance concrete class dylan interim reference manual june first argument acyclic graph direct instance
