COMPUTER SYSTEM, VIRTUAL MACHINE, REPRESENTING METHOD IN THE CASE OF PERFORMING OBJECT, STORAGE MEDIUM AND PROGRAM TRANSMITTER

摘要

PROBLEM TO BE SOLVED: To provide an object state representing method which is fast and whose influence to the performance efficiency of a processing system is very small. ;SOLUTION: This computer system on which an object oriented programming language is mounted is provided with an object 10, a model information block 20 and a class structure 30 as object run-time representation in the mounted programming language, the object 10 is provided with a header 11 including a pointer to the block 20, the block 20 is provided with a class pointer indicating the structure 30, a plurality of class pointers of the block 20 are provided in accordance with the number of states of the object, an individual class pointer is made to correspond to the individual state of the object 10, and the pointer included in the header 11 of the object 10 represents the state of the object by individually indicating the plurality of class pointers by using several low- order bits.;COPYRIGHT: (C)2001,JPO