jef.dna.instructions.impl
Class If_ACmpEq

java.lang.Object
  jef.dna.instructions.impl.InstructionAncestor
      jef.dna.instructions.impl.If_ACmpEq

All Implemented Interfaces:

java.lang.Cloneable, Instruction, BytesCountable

public class If_ACmpEq
extends InstructionAncestor

This class maps the IFACMPEQ bytecode instruction which branches to the offset obtained starting from the two required operands, if and only if the first two values popped from the operand stack equal. These values have to be of type reference.

Author:

Francesco Russo (frusso@cs.unibo.it)

Field Summary

Fields inherited from class jef.dna.instructions.impl.InstructionAncestor

logger, opCode, operands, operandsCount

Constructor Summary

If_ACmpEq()
Creates a new instance of If_ACmpEq

Method Summary

int	updateRefs(int offset) This method must implement the logic necessary to update all the references to constant pool table's entries contained within the bytecode instruction.

Methods inherited from class jef.dna.instructions.impl.InstructionAncestor

clone, fromArray, getBytesCount, getOpCode, getOperands, getOperandsCount, setOpCode, setOperands, setOperandsCountPosticipated, toArray

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

If_ACmpEq

public If_ACmpEq()

Creates a new instance of If_ACmpEq

Method Detail

updateRefs

public int updateRefs(int offset)

This method must implement the logic necessary to update all the references to constant pool table's entries contained within the bytecode instruction.

Specified by:

updateRefs in interface Instruction

Overrides:

updateRefs in class InstructionAncestor

Parameters:

offset - The offset used for updating expressed as number of cpt's entries to be skipped

Returns:

int The number of processed words within the current bytecode instruction