org.apache.bcel.generic

Class GOTO

java.lang.Object

org.apache.bcel.generic.Instruction

org.apache.bcel.generic.BranchInstruction

org.apache.bcel.generic.GotoInstruction

org.apache.bcel.generic.GOTO

All Implemented Interfaces:

java.lang.Cloneable, InstructionTargeter, UnconditionalBranch, VariableLengthInstruction

public class GOTO
extends GotoInstruction
implements VariableLengthInstruction

GOTO - Branch always (to relative offset, not absolute address)

Version:

$Id$

Field Summary

Fields inherited from class org.apache.bcel.generic.BranchInstruction

index, position, target

Fields inherited from class org.apache.bcel.generic.Instruction

length, opcode

Constructor Summary

Constructors

Constructor and Description
GOTO() Empty constructor needed for Instruction.readInstruction.
GOTO(InstructionHandle target)

Method Summary

Modifier and Type	Method and Description
void	accept(Visitor v) Call corresponding visitor method(s).
void	dump(java.io.DataOutputStream out) Dump instruction as byte code to stream out.
protected int	updatePosition(int offset, int max_offset) Called in pass 2 of InstructionList.setPositions() in order to update the branch target, that may shift due to variable length instructions.

Methods inherited from class org.apache.bcel.generic.BranchInstruction

containsTarget, dispose, getIndex, getPosition, getTarget, getTargetOffset, getTargetOffset, initFromFile, notifyTarget, setIndex, setPosition, setTarget, toString, updateTarget

Methods inherited from class org.apache.bcel.generic.Instruction

consumeStack, copy, equals, getComparator, getLength, getName, getOpcode, hashCode, isValidByte, isValidShort, produceStack, readInstruction, setComparator, setLength, setOpcode, toString, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

GOTO

GOTO()

Empty constructor needed for Instruction.readInstruction. Not to be used otherwise.

GOTO

public GOTO(InstructionHandle target)

Method Detail

dump

public void dump(java.io.DataOutputStream out)
          throws java.io.IOException

Dump instruction as byte code to stream out.

Overrides:

dump in class BranchInstruction

Parameters:

out - Output stream

Throws:

java.io.IOException

updatePosition

protected int updatePosition(int offset,
                             int max_offset)

Called in pass 2 of InstructionList.setPositions() in order to update the branch target, that may shift due to variable length instructions.

Overrides:

updatePosition in class BranchInstruction

Parameters:

offset - additional offset caused by preceding (variable length) instructions

max_offset - the maximum offset that may be caused by these instructions

Returns:

additional offset caused by possible change of this instruction's length

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