Package org.apache.bcel.generic

Class LineNumberGen

java.lang.Object

org.apache.bcel.generic.LineNumberGen

All Implemented Interfaces:

java.lang.Cloneable, InstructionTargeter

public class LineNumberGen
extends java.lang.Object
implements InstructionTargeter, java.lang.Cloneable

This class represents a line number within a method, that is, give an instruction a line number corresponding to the source code line.

See Also:

LineNumber, MethodGen

Field Summary

Fields

Modifier and Type	Field	Description
(package private) static LineNumberGen[]	EMPTY_ARRAY
private InstructionHandle	ih
private int	srcLine

Constructor Summary

Constructors

Constructor	Description
LineNumberGen(InstructionHandle ih, int srcLine)	Create a line number.

Method Summary

Modifier and Type	Method	Description
java.lang.Object	clone()
boolean	containsTarget(InstructionHandle ih)	Tests whether this targeter targets the specified instruction handle.
InstructionHandle	getInstruction()
LineNumber	getLineNumber()	Gets LineNumber attribute.
int	getSourceLine()
void	setInstruction(InstructionHandle instructionHandle)
void	setSourceLine(int srcLine)
void	updateTarget(InstructionHandle oldIh, InstructionHandle newIh)	Replaces the target of this targeter from this old handle to the new handle.

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_ARRAY

static final LineNumberGen[] EMPTY_ARRAY

ih

private InstructionHandle ih

srcLine

private int srcLine

Constructor Detail

LineNumberGen

public LineNumberGen(InstructionHandle ih,
                     int srcLine)

Create a line number.

Parameters:

ih - instruction handle to reference.

Method Detail

clone

public java.lang.Object clone()

Overrides:

clone in class java.lang.Object

containsTarget

public boolean containsTarget(InstructionHandle ih)

Description copied from interface: InstructionTargeter

Tests whether this targeter targets the specified instruction handle.

Specified by:

containsTarget in interface InstructionTargeter

Parameters:

ih - the instruction handle to test.

Returns:

true, if ih is target of this line number.

getInstruction

public InstructionHandle getInstruction()

getLineNumber

public LineNumber getLineNumber()

Gets LineNumber attribute. This relies on that the instruction list has already been dumped to byte code or that the 'setPositions' methods has been called for the instruction list.

getSourceLine

public int getSourceLine()

setInstruction

public void setInstruction(InstructionHandle instructionHandle)

setSourceLine

public void setSourceLine(int srcLine)

updateTarget

public void updateTarget(InstructionHandle oldIh,
                         InstructionHandle newIh)

Description copied from interface: InstructionTargeter

Replaces the target of this targeter from this old handle to the new handle.

Specified by:

updateTarget in interface InstructionTargeter

Parameters:

oldIh - old target.

newIh - new target.