de.fub.bytecode.generic
Class IfInstruction

java.lang.Object
  |
  +--de.fub.bytecode.generic.Instruction
        |
        +--de.fub.bytecode.generic.BranchInstruction
              |
              +--de.fub.bytecode.generic.IfInstruction

All Implemented Interfaces:

java.lang.Cloneable, InstructionTargeter, java.io.Serializable, StackConsumer

Direct Known Subclasses:

IF_ACMPEQ, IF_ACMPNE, IF_ICMPEQ, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ICMPLT, IF_ICMPNE, IFEQ, IFGE, IFGT, IFLE, IFLT, IFNE, IFNONNULL, IFNULL

public abstract class IfInstruction

extends BranchInstruction

implements StackConsumer

Super class for the IFxxx family of instructions.

Version:

$Id: IfInstruction.java,v 1.4 2001/07/03 08:20:18 dahm Exp $

Author:

M. Dahm

See Also:

Serialized Form

Fields inherited from class de.fub.bytecode.generic.BranchInstruction

index, position, target

Fields inherited from class de.fub.bytecode.generic.Instruction

length, opcode

Constructor Summary

protected

IfInstruction(short opcode, InstructionHandle target)

Method Summary

abstract IfInstruction

negate()

Methods inherited from class de.fub.bytecode.generic.BranchInstruction

containsTarget, dump, getIndex, getTarget, getTargetOffset, getTargetOffset, initFromFile, setTarget, toString, updatePosition, updateTarget

Methods inherited from class de.fub.bytecode.generic.Instruction

accept, consumeStack, consumeStack, copy, getLength, getOpcode, getTag, produceStack, produceStack, readInstruction, toString, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.fub.bytecode.generic.StackConsumer

consumeStack

Constructor Detail

IfInstruction

protected IfInstruction(short opcode,
                        InstructionHandle target)

Parameters:

instruction - Target instruction to branch to

Method Detail

negate

public abstract IfInstruction negate()

Returns:

negation of instruction, e.g. IFEQ.negate() == IFNE