com.cmpware.elf
Class Tag

java.lang.Object
  com.cmpware.elf.Tag

public class Tag
extends java.lang.Object

This class describes the DWARF2 "tag" data structure.

Copyright (c) 2005 Cmpware, Inc. All Rights Reserved.

Author:

SAG

Field Summary

int	abbrevCode The abbrev code (for abbrev table)
java.util.Hashtable	attributes Tha attribute table (attribute name / value pairs)
int	compileUnitOffset The Compile Unit offset in bytes
byte	hasChildren The has children flag
java.util.Hashtable	lineNumber The line number table (line number / address pairs)
Tag	next The next tag in the list
int	offset The Tag offset in bytes
int	tagCode The tag code
Tag	typeTag The type tag

Constructor Summary

Tag()

Method Summary

static java.lang.Object	getAttr(Tag tag, int attrCode) This method returns a tag's attribute given the tag code.
static int	getIntAttr(Tag tag, int attrCode) This method returns a tag's attribute given the tag code.
static boolean	hasAttr(Tag tag, int attrCode) This method returns true if a given attribute exists in the tag and false otherwise.
boolean	isNull() The method returns true if the tag is null and false otherwise.
java.lang.String	toString() This method returns a string representation of the DWARF tag data.

Methods inherited from class java.lang.Object

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

Field Detail

compileUnitOffset

public int compileUnitOffset

The Compile Unit offset in bytes

offset

public int offset

The Tag offset in bytes

tagCode

public int tagCode

The tag code

hasChildren

public byte hasChildren

The has children flag

abbrevCode

public int abbrevCode

The abbrev code (for abbrev table)

next

public Tag next

The next tag in the list

typeTag

public Tag typeTag

The type tag

attributes

public java.util.Hashtable attributes

Tha attribute table (attribute name / value pairs)

lineNumber

public java.util.Hashtable lineNumber

The line number table (line number / address pairs)

Constructor Detail

Tag

public Tag()

Method Detail

hasAttr

public static boolean hasAttr(Tag tag,
                              int attrCode)

This method returns true if a given attribute exists in the tag and false otherwise.

Parameters:

tag - The tag.

attrCode - The attribute code.

Returns:

This method returns true if a given attribute exists in the tag and false otherwise.

getAttr

public static java.lang.Object getAttr(Tag tag,
                                       int attrCode)

This method returns a tag's attribute given the tag code. The attribute is returned as an Object and should be converted to the proper type (typically String or byte[]).

Parameters:

tag - The tag.

attrCode - The attribute code.

Returns:

This method returns a tag's attribute value given the attribute code.

getIntAttr

public static int getIntAttr(Tag tag,
                             int attrCode)

This method returns a tag's attribute given the tag code. If the attribute is not an integer or if the attribute does not exist for this tag, a zero is returned.

Parameters:

tag - The tag.

attrCode - The attribute code.

Returns:

This method returns a tag's attribute value given the attribute code.

toString

public java.lang.String toString()

This method returns a string representation of the DWARF tag data.

Overrides:

toString in class java.lang.Object

Returns:

This method returns a string representation of the DWARF tag data.

isNull

public boolean isNull()

The method returns true if the tag is null and false otherwise.

Returns:

The method returns true if the tag is null and false otherwise.