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package com.sun.org.apache.bcel.internal.generic;

import com.sun.org.apache.bcel.internal.ExceptionConst;

CHECKCAST - Check whether object is of given type
Stack: ..., objectref -> ..., objectref
Version:$Id: CHECKCAST.java 1747278 2016-06-07 17:28:43Z britter $
/** * CHECKCAST - Check whether object is of given type * <PRE>Stack: ..., objectref -&gt; ..., objectref</PRE> * * @version $Id: CHECKCAST.java 1747278 2016-06-07 17:28:43Z britter $ */
public class CHECKCAST extends CPInstruction implements LoadClass, ExceptionThrower, StackProducer, StackConsumer {
Empty constructor needed for the Class.newInstance() statement in Instruction.readInstruction(). Not to be used otherwise.
/** * Empty constructor needed for the Class.newInstance() statement in * Instruction.readInstruction(). Not to be used otherwise. */
CHECKCAST() { }
Check whether object is of given type
Params:
  • index – index to class in constant pool
/** Check whether object is of given type * @param index index to class in constant pool */
public CHECKCAST(final int index) { super(com.sun.org.apache.bcel.internal.Const.CHECKCAST, index); }
Returns:exceptions this instruction may cause
/** @return exceptions this instruction may cause */
@Override public Class<?>[] getExceptions() { return ExceptionConst.createExceptions(ExceptionConst.EXCS.EXCS_CLASS_AND_INTERFACE_RESOLUTION, ExceptionConst.CLASS_CAST_EXCEPTION); } @Override public ObjectType getLoadClassType( final ConstantPoolGen cpg ) { Type t = getType(cpg); if (t instanceof ArrayType) { t = ((ArrayType) t).getBasicType(); } return (t instanceof ObjectType) ? (ObjectType) t : null; }
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.
Params:
  • v – Visitor object
/** * 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 */
@Override public void accept( final Visitor v ) { v.visitLoadClass(this); v.visitExceptionThrower(this); v.visitStackProducer(this); v.visitStackConsumer(this); v.visitTypedInstruction(this); v.visitCPInstruction(this); v.visitCHECKCAST(this); } }