Implemented for Internal (user-defined)classes only
Syntax:
classrefs „ classref.ŚCHILDREN
The niladic system method ŚCHILDREN returns a vector of references to the children of a given class, i.e. the classes which inherit from that class. In this example, classes Color_Point and Grayscale_Point both inherit from class Point:
)CLASSES Color_Point Grayscale_Point Point Point.ŚCHILDREN {Color_Point} {Grayscale_Point} ˝Point.ŚCHILDREN 2