com.cmpware.elf
Class Variable

java.lang.Object
  com.cmpware.elf.Variable

All Implemented Interfaces:

TreeViewable

public class Variable
extends java.lang.Object
implements TreeViewable

This class stores all the data necessary for a DWARF variable. This just makes for a simpler structure to use in places like a tree display. Note that this variable is a named data element or parameter that may be of the type structure, array or scalar.

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

Author:

SAG

Field Summary

int	addr The variable current address
byte[]	addrPgm The DWARF address program
int	declFile The declaration file number
int	declLine The declaration line number
java.lang.Integer	locList The location list (for non addrPgm[]s)
java.lang.String	name The variable name
Scope	scope The scope of this variable
VariableType	type The type of this variable

Constructor Summary

Variable(Scope scope)
This constructor creates a variable.

Method Summary

java.lang.Object[]	getChildren() This method returns the children of this object.
org.eclipse.swt.graphics.Image	getImage() This method returns an image used as a decorator.
java.lang.String	getName()
java.lang.Object	getParent() This method returns the parent of this object.
java.lang.String	getText() This method returns the text string associated with this object.
static Variable	getVariable(Scope scope, Tag tag) This method returns a Variable with data filled in from the ELF /DWARF tag.
boolean	hasChildren() This method returns true if this object has children and false otherwise.
java.lang.String	toString(int addrBytes, boolean byteSwap) This method returns a string representation of the variable.

Methods inherited from class java.lang.Object

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

Field Detail

name

public java.lang.String name

The variable name

addr

public int addr

The variable current address

declLine

public int declLine

The declaration line number

declFile

public int declFile

The declaration file number

addrPgm

public byte[] addrPgm

The DWARF address program

locList

public java.lang.Integer locList

The location list (for non addrPgm[]s)

type

public VariableType type

The type of this variable

scope

public Scope scope

The scope of this variable

Constructor Detail

Variable

public Variable(Scope scope)

This constructor creates a variable.

Parameters:

scope - The scope of this variable.

Method Detail

getVariable

public static Variable getVariable(Scope scope,
                                   Tag tag)

This method returns a Variable with data filled in from the ELF /DWARF tag. Note that this tag should be a DW_TAG_variable or a DW_TAG_formal_parameter.

Parameters:

scope - The scope for this variable.

tag - The ELF /DWARF tag representing this variable.

Returns:

This method returns a Variable with all of the fields filled in according to the input DWARF tag and its children.

getName

public java.lang.String getName()

getChildren

public java.lang.Object[] getChildren()

Description copied from interface: TreeViewable

This method returns the children of this object.

Specified by:

getChildren in interface TreeViewable

Returns:

This method returns the children of this object

getParent

public java.lang.Object getParent()

Description copied from interface: TreeViewable

This method returns the parent of this object.

Specified by:

getParent in interface TreeViewable

Returns:

This method returns the parent of this object.

hasChildren

public boolean hasChildren()

Description copied from interface: TreeViewable

This method returns true if this object has children and false otherwise.

Specified by:

hasChildren in interface TreeViewable

Returns:

This method returns true if this object has children and false otherwise.

getText

public java.lang.String getText()

Description copied from interface: TreeViewable

This method returns the text string associated with this object.

Specified by:

getText in interface TreeViewable

Returns:

This method returns the text string associated with this object.

getImage

public org.eclipse.swt.graphics.Image getImage()

Description copied from interface: TreeViewable

This method returns an image used as a decorator.

Specified by:

getImage in interface TreeViewable

Returns:

This method returns an image used as a decorator.

toString

public java.lang.String toString(int addrBytes,
                                 boolean byteSwap)

This method returns a string representation of the variable.

Parameters:

addrBytes - the number of bytes in an address.

byteSwap - the byte swappting flag from the ELF file.

Returns:

This method returns a string representation of the variable.