at.dms.classfile
Class LocalVariableInfo

java.lang.Object
  at.dms.classfile.LocalVariableInfo

All Implemented Interfaces:

AccessorContainer

public class LocalVariableInfo
extends Object
implements AccessorContainer

VMS 4.7.9: Local Variable Table Attribute. This attribute represents a mapping between he Java Virtual Machine code array and the line number in the original Java source file

Constructor Summary

LocalVariableInfo(DataInput in, ConstantPool cp, Instruction[] insns)
Create an entry in the line number table from a class file stream

LocalVariableInfo(InstructionAccessor start, InstructionAccessor end, String name, String type, short slot)
Create an entry in the line number table

Method Summary

InstructionAccessor	getEnd() Returns the end of the protected area
String	getName() Returns the name of the local variable
short	getSlot() Returns the index in the method's local variables
InstructionAccessor	getStart() Returns the start of the protected area
String	getType() Returns the type of the local variable
void	setEnd(InstructionAccessor end) Sets the end of the protected area
void	setStart(InstructionAccessor start) Sets the start of the protected area
void	transformAccessors(AccessorTransformer transformer) Transforms targets (deferences to actual instructions).

Methods inherited from class java.lang.Object

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

Constructor Detail

LocalVariableInfo

public LocalVariableInfo(InstructionAccessor start,
                         InstructionAccessor end,
                         String name,
                         String type,
                         short slot)

Create an entry in the line number table

Parameters:

start - the beginning of the area (inclusive) where the name is valid

end - the end of the area (inclusive) where the name is valid

name - the name of the variable

type - the type signature of the variable

slot - the index in the method's local variables

LocalVariableInfo

public LocalVariableInfo(DataInput in,
                         ConstantPool cp,
                         Instruction[] insns)
                  throws IOException

Create an entry in the line number table from a class file stream

Parameters:

in - the stream to read from

cp - the constant pool

insns - (sparse) array of instructions

Throws:

IOException - an io problem has occured

Method Detail

transformAccessors

public void transformAccessors(AccessorTransformer transformer)
                        throws BadAccessorException

Transforms targets (deferences to actual instructions).

Specified by:

transformAccessors in interface AccessorContainer

Parameters:

transformer - the transformer used to transform accessors

Throws:

BadAccessorException

getName

public String getName()

Returns the name of the local variable

getType

public String getType()

Returns the type of the local variable

setStart

public void setStart(InstructionAccessor start)

Sets the start of the protected area

getStart

public InstructionAccessor getStart()

Returns the start of the protected area

setEnd

public void setEnd(InstructionAccessor end)

Sets the end of the protected area

getEnd

public InstructionAccessor getEnd()

Returns the end of the protected area

getSlot

public short getSlot()

Returns the index in the method's local variables