edu.rice.cs.cunit.classFile.constantPool
Class APoolInfo

java.lang.Object
  edu.rice.cs.cunit.classFile.constantPool.APoolInfo

Direct Known Subclasses:

AClassNameTypePoolInfo, AUTFPoolInfo, ClassPoolInfo, DoublePoolInfo, EmptyPoolInfo, FloatPoolInfo, IntegerPoolInfo, LongPoolInfo, NameAndTypePoolInfo, StringPoolInfo

public abstract class APoolInfo
extends java.lang.Object

Represents an abstract constant pool object.

Author:

Mathias Ricken

Field Summary

protected ConstantPool	_constantPool Reference to the constant pool.
protected int	_type Object type.
static int	CONSTANT_Class
static int	CONSTANT_Double
static int	CONSTANT_Fieldref
static int	CONSTANT_Float
static int	CONSTANT_Integer
static int	CONSTANT_InterfaceMethodref
static int	CONSTANT_Long
static int	CONSTANT_Methodref
static int	CONSTANT_NameAndType
static int	CONSTANT_String
static int	CONSTANT_Utf8_ASCII
static int	CONSTANT_Utf8_Unicode

Constructor Summary

APoolInfo(int type, ConstantPool cp)
Constructor

Method Summary

abstract boolean	equals(java.lang.Object obj) Compare this object and another one.
abstract <R,D> R	execute(IPoolInfoVisitor<R,D> visitor, D data) Execute a visitor.
abstract int	hashCode() Return a hash code.
APoolInfo	inPool(ConstantPool pool) Return the reference to the constant pool item that is already in pool, that matches this one.
static APoolInfo	read(PositionDataInputStream dis, ConstantPool cp) Read from stream and return unresolved constant pool object.
abstract void	reindex() Reindex constant pool indices.
abstract void	resolve() Resolve constant pool objects.
abstract java.lang.String	toString() Return a human-readable version of this constant pool object.
abstract java.lang.String	toStringVerbose() Return a human-readable version of this constant pool object.
abstract void	write(java.io.DataOutputStream dos) Write this constant pool object into the stream, including the type byte.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

CONSTANT_Class

public static final int CONSTANT_Class

See Also:

Constant Field Values

CONSTANT_Fieldref

public static final int CONSTANT_Fieldref

See Also:

Constant Field Values

CONSTANT_Methodref

public static final int CONSTANT_Methodref

See Also:

Constant Field Values

CONSTANT_InterfaceMethodref

public static final int CONSTANT_InterfaceMethodref

See Also:

Constant Field Values

CONSTANT_String

public static final int CONSTANT_String

See Also:

Constant Field Values

CONSTANT_Integer

public static final int CONSTANT_Integer

See Also:

Constant Field Values

CONSTANT_Float

public static final int CONSTANT_Float

See Also:

Constant Field Values

CONSTANT_Long

public static final int CONSTANT_Long

See Also:

Constant Field Values

CONSTANT_Double

public static final int CONSTANT_Double

See Also:

Constant Field Values

CONSTANT_NameAndType

public static final int CONSTANT_NameAndType

See Also:

Constant Field Values

CONSTANT_Utf8_ASCII

public static final int CONSTANT_Utf8_ASCII

See Also:

Constant Field Values

CONSTANT_Utf8_Unicode

public static final int CONSTANT_Utf8_Unicode

See Also:

Constant Field Values

_type

protected int _type

Object type.

_constantPool

protected ConstantPool _constantPool

Reference to the constant pool.

Constructor Detail

APoolInfo

public APoolInfo(int type,
                 ConstantPool cp)

Constructor

Parameters:

type - object type

Method Detail

read

public static APoolInfo read(PositionDataInputStream dis,
                             ConstantPool cp)
                      throws java.io.IOException,
                             java.lang.ClassFormatError

Read from stream and return unresolved constant pool object.

Parameters:

dis - stream

Returns:

unresolved constant pool object.

Throws:

java.io.IOException

java.lang.ClassFormatError

inPool

public APoolInfo inPool(ConstantPool pool)

Return the reference to the constant pool item that is already in pool, that matches this one.

Parameters:

pool - constant pool

Returns:

matching object or null if not found

write

public abstract void write(java.io.DataOutputStream dos)
                    throws java.io.IOException

Write this constant pool object into the stream, including the type byte.

Parameters:

dos - stream

Throws:

java.io.IOException

resolve

public abstract void resolve()

Resolve constant pool objects. This makes sure that the object links match the index links.

reindex

public abstract void reindex()

Reindex constant pool indices. This makes sure the index links match the object links.

toStringVerbose

public abstract java.lang.String toStringVerbose()

Return a human-readable version of this constant pool object.

Returns:

string

toString

public abstract java.lang.String toString()

Return a human-readable version of this constant pool object.

Overrides:

toString in class java.lang.Object

Returns:

string

hashCode

public abstract int hashCode()

Return a hash code.

Overrides:

hashCode in class java.lang.Object

Returns:

hash code

equals

public abstract boolean equals(java.lang.Object obj)

Compare this object and another one.

Overrides:

equals in class java.lang.Object

Parameters:

obj - other object

Returns:

true if the same

execute

public abstract <R,D> R execute(IPoolInfoVisitor<R,D> visitor,
                                D data)

Execute a visitor.

Parameters:

visitor - visitor

data - visitor-specific parameter

Returns:

visitor-specific return value