org.apache.bcel.generic
Class CHECKCAST

java.lang.Object
  extended by org.apache.bcel.generic.Instruction
      extended by org.apache.bcel.generic.CPInstruction
          extended by org.apache.bcel.generic.CHECKCAST
All Implemented Interfaces:
Serializable, Cloneable, ExceptionThrower, IndexedInstruction, LoadClass, StackConsumer, StackProducer, TypedInstruction

public class CHECKCAST
extends CPInstruction
implements LoadClass, ExceptionThrower, StackProducer, StackConsumer

CHECKCAST - Check whether object is of given type

Stack: ..., objectref -> ..., objectref

Version:
$Id: CHECKCAST.java 386056 2006-03-15 11:31:56Z tcurdt $
See Also:
Serialized Form

Field Summary
 
Fields inherited from class org.apache.bcel.generic.CPInstruction
index
 
Fields inherited from class org.apache.bcel.generic.Instruction
length, opcode
 
Constructor Summary
CHECKCAST(int index)
          Check whether object is of given type
 
Method Summary
 void accept(Visitor v)
          Call corresponding visitor method(s).
 Class[] getExceptions()
           
 ObjectType getLoadClassType(ConstantPoolGen cpg)
          Returns the ObjectType of the referenced class or interface that may be loaded and resolved.
 
Methods inherited from class org.apache.bcel.generic.CPInstruction
dump, getIndex, getType, initFromFile, setIndex, toString, toString
 
Methods inherited from class org.apache.bcel.generic.Instruction
consumeStack, copy, equals, getComparator, getLength, getName, getOpcode, produceStack, readInstruction, setComparator, toString
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface org.apache.bcel.generic.LoadClass
getType
 
Methods inherited from interface org.apache.bcel.generic.StackProducer
produceStack
 
Methods inherited from interface org.apache.bcel.generic.StackConsumer
consumeStack
 

Constructor Detail

CHECKCAST

public CHECKCAST(int index)
Check whether object is of given type

Parameters:
index - index to class in constant pool
Method Detail

getExceptions

public Class[] getExceptions()
Specified by:
getExceptions in interface ExceptionThrower
Returns:
exceptions this instruction may cause

getLoadClassType

public ObjectType getLoadClassType(ConstantPoolGen cpg)
Description copied from interface: LoadClass
Returns the ObjectType of the referenced class or interface that may be loaded and resolved.

Specified by:
getLoadClassType in interface LoadClass
Returns:
object type that may be loaded or null if a primitive is referenced

accept

public void accept(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.

Specified by:
accept in class Instruction
Parameters:
v - Visitor object


Copyright © 2002-2006 Apache Software Foundation. All Rights Reserved.