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

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()	Gets the instruction handle.
LineNumber	getLineNumber()	Gets LineNumber attribute.
int	getSourceLine()	Gets the source line number.
void	setInstruction(InstructionHandle instructionHandle)	Sets the instruction handle.
void	setSourceLine(int srcLine)	Sets the source line number.
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

Constructor Detail

LineNumberGen

public LineNumberGen(InstructionHandle ih,
                     int srcLine)

Create a line number.

Parameters:

ih - instruction handle to reference.

srcLine - source line number.

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()

Gets the instruction handle.

Returns:

The instruction handle.

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.

Returns:

The line number attribute.

getSourceLine

public int getSourceLine()

Gets the source line number.

Returns:

The source line number.

setInstruction

public void setInstruction(InstructionHandle instructionHandle)

Sets the instruction handle.

Parameters:

instructionHandle - The instruction handle to set.

setSourceLine

public void setSourceLine(int srcLine)

Sets the source line number.

Parameters:

srcLine - The source line number to set.

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.