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INSTANCEOF.javaAPI DocJava SE 5 API4298Fri Aug 26 14:55:22 BST 2005com.sun.org.apache.bcel.internal.generic

INSTANCEOF

public class INSTANCEOF extends CPInstruction implements ExceptionThrower, StackProducer, LoadClass, StackConsumer
INSTANCEOF - Determine if object is of given type 
Stack: ..., objectref -> ..., result
version
$Id: INSTANCEOF.java,v 1.1.1.1 2001/10/29 20:00:16 jvanzyl Exp $
author
M. Dahm

Fields Summary
Constructors Summary
INSTANCEOF()
Empty constructor needed for the Class.newInstance() statement in Instruction.readInstruction(). Not to be used otherwise.

public INSTANCEOF(int index)
    super(com.sun.org.apache.bcel.internal.Constants.INSTANCEOF, index);
  
Methods Summary
public voidaccept(com.sun.org.apache.bcel.internal.generic.Visitor v)
Call corresponding visitor method(s). The order is:
Call visitor methods of implemented interfaces first, then
call methods according to the class hierarchy in descending order,
i.e., the most specific visitXXX() call comes last.
param
v Visitor object
    v.visitLoadClass(this);
    v.visitExceptionThrower(this);
    v.visitStackProducer(this);
    v.visitStackConsumer(this);
    v.visitTypedInstruction(this);
    v.visitCPInstruction(this);
    v.visitINSTANCEOF(this);
  
public java.lang.Class[]getExceptions()
    return com.sun.org.apache.bcel.internal.ExceptionConstants.EXCS_CLASS_AND_INTERFACE_RESOLUTION;
  
public com.sun.org.apache.bcel.internal.generic.ObjectTypegetLoadClassType(com.sun.org.apache.bcel.internal.generic.ConstantPoolGen cpg)
    Type t = getType(cpg);

    if(t instanceof ArrayType)
      t = ((ArrayType) t).getBasicType();

    return (t instanceof ObjectType)? (ObjectType) t : null;