add-direct-subclass
Generic Function ADD-DIRECT-SUBCLASS
Syntax:
add-direct-subclass superclass subclass => unspecified
Arguments and values:
superclass -- A class metaobject.
subclass -- A class metaobject.
Description:
This generic function is called to maintain a set of backpointers from a class to its direct subclasses. This generic function adds subclass to the set of direct subclasses of superclass.
When a class is initialized, this generic function is called once for each direct superclass of the class.
When a class is reinitialized, this generic function is called once for each added direct superclass of the class. The generic functionremove-direct-subclass is called once for each deleted direct superclass of the class.
Methods: