Package org.jboss.classfilewriter.code

Class StackEntry

java.lang.Object

org.jboss.classfilewriter.code.StackEntry

public class StackEntry
extends java.lang.Object

represents the state of the stack or the local variable array.

This is written out as part of the StackMap attribute

Field Summary

Fields

Modifier and Type	Field	Description
private java.lang.String	descriptor
private int	descriptorIndex	if this is OBJECT then this holds the const pool index
private int	newInstructionLocation	if this is an unititialized bytecode then this holds the absolute position of the new instruction that created it
private StackEntryType	type

Constructor Summary

Constructors

Constructor	Description
StackEntry(StackEntryType type, java.lang.String descriptor)
StackEntry(StackEntryType type, java.lang.String descriptor, int newInstructionLocation)
StackEntry(StackEntryType type, java.lang.String descriptor, ConstPool pool)

Method Summary

Modifier and Type	Method	Description
java.lang.String	getDescriptor()
int	getNewInstructionLocation()
StackEntryType	getType()
boolean	isWide()
static StackEntry	of(java.lang.String descriptor, ConstPool pool)
java.lang.String	toString()
void	write(java.io.DataOutputStream dstream)	writes the entry to the stream

Methods inherited from class java.lang.Object

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

Field Detail

type

private final StackEntryType type

descriptor

private final java.lang.String descriptor

descriptorIndex

private final int descriptorIndex

if this is OBJECT then this holds the const pool index

newInstructionLocation

private final int newInstructionLocation

if this is an unititialized bytecode then this holds the absolute position of the new instruction that created it

Constructor Detail

StackEntry

public StackEntry(StackEntryType type,
                  java.lang.String descriptor)

StackEntry

public StackEntry(StackEntryType type,
                  java.lang.String descriptor,
                  ConstPool pool)

StackEntry

public StackEntry(StackEntryType type,
                  java.lang.String descriptor,
                  int newInstructionLocation)

Method Detail

getDescriptor

public java.lang.String getDescriptor()

getNewInstructionLocation

public int getNewInstructionLocation()

getType

public StackEntryType getType()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

of

public static StackEntry of(java.lang.String descriptor,
                            ConstPool pool)

isWide

public boolean isWide()

write

public void write(java.io.DataOutputStream dstream)
           throws java.io.IOException

writes the entry to the stream

Throws:

java.io.IOException