Package org.aspectj.apache.bcel.classfile

Class LocalVariableTable

java.lang.Object

org.aspectj.apache.bcel.classfile.Attribute

org.aspectj.apache.bcel.classfile.LocalVariableTable

All Implemented Interfaces:

Serializable, Cloneable, Node

public class LocalVariableTable
extends Attribute

This class represents collection of local variables in a method. This attribute is contained in the Code attribute.

Version:

$Id: LocalVariableTable.java,v 1.8 2009/09/15 19:40:12 aclement Exp $

Author:

M. Dahm

See Also:

• Code
• Updates: Andy 14Feb06 - Made unpacking of the data lazy, depending on someone actually asking for it.
• Serialized Form

Field Summary

Fields inherited from class org.aspectj.apache.bcel.classfile.Attribute

cpool, length, nameIndex, NoAttributes, tag

Constructor Summary

Constructors

Constructor	Description
LocalVariableTable(int name_index, int length, LocalVariable[] local_variable_table, ConstantPool constant_pool)
LocalVariableTable(LocalVariableTable c)	Initialize from another object.

Method Summary

Modifier and Type	Method	Description
void	accept(ClassVisitor v)	Called by objects that are traversing the nodes of the tree implicitely defined by the contents of a Java class.
LocalVariableTable	copyFromPackedState()	Returns copy of this attribute using same packed state.
final void	dump(DataOutputStream file)	Dump local variable table attribute to file stream in binary format.
final LocalVariable	getLocalVariable(int index)
final LocalVariable[]	getLocalVariableTable()
final int	getTableLength()
final void	setLocalVariableTable(LocalVariable[] local_variable_table)
final String	toString()

Methods inherited from class org.aspectj.apache.bcel.classfile.Attribute

getConstantPool, getLength, getName, getNameIndex, getTag, readAttribute

Methods inherited from class java.lang.Object

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

Constructor Details

LocalVariableTable

public LocalVariableTable(LocalVariableTable c)

Initialize from another object. Note that both objects use the same references (shallow copy). Use copy() for a physical copy.

LocalVariableTable

public LocalVariableTable(int name_index,
 int length,
 LocalVariable[] local_variable_table,
 ConstantPool constant_pool)

Parameters:

name_index - Index in constant pool to `LocalVariableTable'

length - Content length in bytes

local_variable_table - Table of local variables

constant_pool - Array of constants

Method Details

accept

public void accept(ClassVisitor 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 local variable table attribute to file stream in binary format.

Overrides:

dump in class Attribute

Parameters:

file - Output file stream

Throws:

IOException

getLocalVariableTable

public final LocalVariable[] getLocalVariableTable()

Returns:

Array of local variables of method.

getLocalVariable

public final LocalVariable getLocalVariable(int index)

Returns:

first matching variable using index

setLocalVariableTable

public final void setLocalVariableTable(LocalVariable[] local_variable_table)

toString

public final String toString()

Overrides:

toString in class Attribute

Returns:

String representation.

copyFromPackedState

public LocalVariableTable copyFromPackedState()

Returns copy of this attribute using same packed state. Used in unit tests.

getTableLength

public final int getTableLength()

Returns:

deep copy of this attribute