org.apache.bcel.classfile
Class LineNumberTable

java.lang.Object
  extended by org.apache.bcel.classfile.Attribute
      extended by org.apache.bcel.classfile.LineNumberTable
All Implemented Interfaces:
Serializable, Cloneable, Node

public final class LineNumberTable
extends Attribute

This class represents a table of line numbers for debugging purposes. This attribute is used by the Code attribute. It contains pairs of PCs and line numbers.

Version:
$Id: LineNumberTable.java 386056 2006-03-15 11:31:56Z tcurdt $
See Also:
Code, LineNumber, Serialized Form

Field Summary
 
Fields inherited from class org.apache.bcel.classfile.Attribute
constant_pool, length, name_index, tag
 
Constructor Summary
LineNumberTable(int name_index, int length, LineNumber[] line_number_table, ConstantPool constant_pool)
           
LineNumberTable(LineNumberTable c)
           
 
Method Summary
 void accept(Visitor v)
          Called by objects that are traversing the nodes of the tree implicitely defined by the contents of a Java class.
 Attribute copy(ConstantPool _constant_pool)
           
 void dump(DataOutputStream file)
          Dump line number table attribute to file stream in binary format.
 LineNumber[] getLineNumberTable()
           
 int getSourceLine(int pos)
          Map byte code positions to source code lines.
 int getTableLength()
           
 void setLineNumberTable(LineNumber[] line_number_table)
           
 String toString()
           
 
Methods inherited from class org.apache.bcel.classfile.Attribute
addAttributeReader, clone, getConstantPool, getLength, getNameIndex, getTag, readAttribute, removeAttributeReader, setConstantPool, setLength, setNameIndex
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

LineNumberTable

public LineNumberTable(LineNumberTable c)

LineNumberTable

public LineNumberTable(int name_index,
                       int length,
                       LineNumber[] line_number_table,
                       ConstantPool constant_pool)
Method Detail

accept

public void accept(Visitor v)
Called by objects that are traversing the nodes of the tree implicitely defined by the contents of a Java class. I.e., the hierarchy of methods, fields, attributes, etc. spawns a tree of objects.

Specified by:
accept in interface Node
Specified by:
accept in class Attribute
Parameters:
v - Visitor object

dump

public final void dump(DataOutputStream file)
                throws IOException
Dump line number table attribute to file stream in binary format.

Overrides:
dump in class Attribute
Parameters:
file - Output file stream
Throws:
IOException

getLineNumberTable

public final LineNumber[] getLineNumberTable()
Returns:
Array of (pc offset, line number) pairs.

setLineNumberTable

public final void setLineNumberTable(LineNumber[] line_number_table)
Parameters:
line_number_table - the line number entries for this table

toString

public final String toString()
Overrides:
toString in class Attribute
Returns:
String representation.

getSourceLine

public int getSourceLine(int pos)
Map byte code positions to source code lines.

Parameters:
pos - byte code offset
Returns:
corresponding line in source code

copy

public Attribute copy(ConstantPool _constant_pool)
Specified by:
copy in class Attribute
Returns:
deep copy of this attribute

getTableLength

public final int getTableLength()


Copyright © 2002-2006 Apache Software Foundation. All Rights Reserved.