Package org.apache.bcel.classfile

Class StackMapType

java.lang.Object

org.apache.bcel.classfile.StackMapType

All Implemented Interfaces:

Cloneable

public final class StackMapType
extends Object
implements 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
private ConstantPool	constant_pool
private int	index
private byte	type

Constructor Summary

Constructors

Constructor	Description
StackMapType(byte type, int index, ConstantPool constant_pool)
StackMapType(DataInput file, ConstantPool constant_pool)	Construct object from file stream.

Method Summary

Modifier and Type	Method	Description
StackMapType	copy()
void	dump(DataOutputStream file)	Dump type entries to file.
ConstantPool	getConstantPool()
int	getIndex()
byte	getType()
boolean	hasIndex()
private String	printIndex()
void	setConstantPool(ConstantPool constant_pool)
void	setIndex(int t)
void	setType(byte t)
String	toString()

Methods inherited from class java.lang.Object

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

Field Details

type

private byte type

index

private int index

constant_pool

private ConstantPool constant_pool

Constructor Details

StackMapType

StackMapType(DataInput file,
 ConstantPool constant_pool)
      throws IOException

Construct object from file stream.

Parameters:

file - Input stream

Throws:

IOException

StackMapType

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

Parameters:

type - type tag as defined in the Constants interface

index - index to constant pool, or byte code offset

Method Details

setType

public void setType(byte t)

getType

public byte getType()

setIndex

public void setIndex(int t)

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

dump

public void dump(DataOutputStream file)
          throws IOException

Dump type entries to file.

Parameters:

file - Output file stream

Throws:

IOException

hasIndex

public boolean hasIndex()

Returns:

true, if type is either ITEM_Object or ITEM_NewObject

printIndex

private String printIndex()

toString

public String toString()

Overrides:

toString in class Object

Returns:

String representation

copy

public StackMapType copy()

Returns:

deep copy of this object

getConstantPool

public ConstantPool getConstantPool()

Returns:

Constant pool used by this object.

setConstantPool

public void setConstantPool(ConstantPool constant_pool)

Parameters:

constant_pool - Constant pool to be used for this object.