objvlisp การใช้

• The explicit metaclass support in ObjVlisp influenced the provision of the same capability in the Common Lisp Object System.
• ObjVlisp provided a far more flexible metaclass model than that provided by earlier object-oriented languages, especially Smalltalk.
• By contrast, in ObjVlisp, it is possible to define named metaclasses, and when defining a class one must specify which named metaclass it will instantiate.
• Some less widespread languages that support metaclasses include OpenJava, OpenC + +, OpenAda, CorbaScript, ObjVLisp, Object-Z, MODEL-K, XOTcl, and MELDC . Several of these languages date from the early 1990s and are of academic interest.