AOSD
2007
ACM
13 years 9 months ago
2007
ACM
Beginning with BETA, a range of programming language mechanisms such as virtual classes (class-valued attributes of objects) have been developed to allow inheritance in the presen...
POPL
2006
ACM
14 years 5 months ago
2006
ACM
Virtual classes are class-valued attributes of objects. Like virtual methods, virtual classes are defined in an object's class and may be redefined within subclasses. They re...