built-in-class (original) (raw)

ANSI Common Lisp 4 Types and Classes 4.4 Dictionary of Types and Classes

Class Precedence List:

built-in-class,class,standard-object,t

Description:

A built-in class is a class whose instances have restricted capabilities or special representations. Attempting to usedefclass to define subclasses of a _built-in class_signals an error of type error. Calling make-instance to create an _instance_of a built-in class signals an error of type error. Calling slot-value on an instance of a _built-in class_signals an error of type error. Redefining a _built-in class_or using change-class to change the class of an _instance_to or from a built-in class signals an error of type error. However, built-in classes can be used as _parameter specializers_in methods.

Allegro CL Implementation Details:

None.