Package org.apache.bcel.classfile

Class StackMapType

java.lang.Object

org.apache.bcel.classfile.StackMapType

All Implemented Interfaces:

java.lang.Cloneable, Node

public final class StackMapType
extends java.lang.Object
implements Node, java.lang.Cloneable

This class represents the type of a local variable or item on stack used in the StackMap entries.

See Also:

StackMapEntry, StackMap, Const

Field Summary

Fields

Modifier and Type	Field	Description
static StackMapType[]	EMPTY_ARRAY

Constructor Summary

Constructors

Constructor	Description
StackMapType(byte type, int index, ConstantPool constantPool)

Method Summary

Modifier and Type	Method	Description
void	accept(Visitor v)	Called by objects that are traversing the nodes of the tree implicitly defined by the contents of a Java class.
StackMapType	copy()
void	dump(java.io.DataOutputStream file)	Dump type entries to file.
java.lang.String	getClassName()	Gets the class name of this StackMapType from the constant pool at index position.
ConstantPool	getConstantPool()
int	getIndex()
byte	getType()
boolean	hasIndex()
void	setConstantPool(ConstantPool constantPool)
void	setIndex(int index)
void	setType(byte type)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_ARRAY

public static final StackMapType[] EMPTY_ARRAY

Constructor Detail

StackMapType

public StackMapType(byte type,
                    int index,
                    ConstantPool constantPool)

Parameters:

type - type tag as defined in the Constants interface

index - index to constant pool, or byte code offset

Method Detail

accept

public void accept(Visitor v)

Called by objects that are traversing the nodes of the tree implicitly 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

Parameters:

v - Visitor object

Since:

6.8.0

copy

public StackMapType copy()

Returns:

deep copy of this object

dump

public void dump(java.io.DataOutputStream file)
          throws java.io.IOException

Dump type entries to file.

Parameters:

file - Output file stream

Throws:

java.io.IOException - if an I/O error occurs.

getClassName

public java.lang.String getClassName()

Gets the class name of this StackMapType from the constant pool at index position.

Returns:

the fully qualified name of the class for this StackMapType.

Since:

6.8.0

getConstantPool

public ConstantPool getConstantPool()

Returns:

Constant pool used by this object.

getIndex

public int getIndex()

Returns:

index to constant pool if type == ITEM_Object, or offset in byte code, if type == ITEM_NewObject, and -1 otherwise

getType

public byte getType()

hasIndex

public boolean hasIndex()

Returns:

true, if type is either ITEM_Object or ITEM_NewObject

setConstantPool

public void setConstantPool(ConstantPool constantPool)

Parameters:

constantPool - Constant pool to be used for this object.

setIndex

public void setIndex(int index)

setType

public void setType(byte type)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

Returns:

String representation