proguard.classfile
Class CpInfo

java.lang.Object
  proguard.classfile.CpInfo

All Implemented Interfaces:

VisitorAccepter

Direct Known Subclasses:

ClassCpInfo, DoubleCpInfo, FloatCpInfo, IntegerCpInfo, LongCpInfo, NameAndTypeCpInfo, RefCpInfo, StringCpInfo, Utf8CpInfo

public abstract class CpInfo

extends Object

implements VisitorAccepter

Representation of an entry in the ConstantPool. Specific types of entry have their representations sub-classed from this.

Field Summary

Object

visitorInfo An extra field in which visitors can store information.

Constructor Summary

CpInfo()

Method Summary

abstract void	accept(ClassFile classFile, CpInfoVisitor cpInfoVisitor) Accepts the given visitor.
static CpInfo	create(DataInput din) Creates a new CpInfo from the data passed.
static CpInfo	createOrShare(DataInput din) Creates a new CpInfo from the data passed, for UTF-8 and Class constant pool entries, or returns a shared object, for all other entries.
abstract int	getTag() Returns the class pool info tag that specifies the entry type.
Object	getVisitorInfo() Gets the visitor information of the visitor accepter.
protected abstract void	readInfo(DataInput din) Reads the 'info' data following the u1tag byte.
void	setVisitorInfo(Object visitorInfo) Sets the visitor information of the visitor accepter.
void	write(DataOutput dout) Exports the representation to a DataOutput stream.
protected abstract void	writeInfo(DataOutput dout) Writes the 'info' data following the u1tag byte.

Methods inherited from class java.lang.Object

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

Field Detail

visitorInfo

public Object visitorInfo

An extra field in which visitors can store information.

Constructor Detail

CpInfo

public CpInfo()

Method Detail

create

public static CpInfo create(DataInput din)
                     throws IOException

Creates a new CpInfo from the data passed.

Throws:

IOException - if the class file is corrupt or incomplete.

createOrShare

public static CpInfo createOrShare(DataInput din)
                            throws IOException

Creates a new CpInfo from the data passed, for UTF-8 and Class constant pool entries, or returns a shared object, for all other entries.

Throws:

IOException - if the class file is corrupt or incomplete.

write

public void write(DataOutput dout)
           throws IOException

Exports the representation to a DataOutput stream.

Throws:

IOException

getTag

public abstract int getTag()

Returns the class pool info tag that specifies the entry type.

readInfo

protected abstract void readInfo(DataInput din)
                          throws IOException

Reads the 'info' data following the u1tag byte.

Throws:

IOException

writeInfo

protected abstract void writeInfo(DataOutput dout)
                           throws IOException

Writes the 'info' data following the u1tag byte.

Throws:

IOException

accept

public abstract void accept(ClassFile classFile,
                            CpInfoVisitor cpInfoVisitor)

Accepts the given visitor.

getVisitorInfo

public Object getVisitorInfo()

Description copied from interface: VisitorAccepter

Gets the visitor information of the visitor accepter.

Specified by:

getVisitorInfo in interface VisitorAccepter

setVisitorInfo

public void setVisitorInfo(Object visitorInfo)

Description copied from interface: VisitorAccepter

Sets the visitor information of the visitor accepter.

Specified by:

setVisitorInfo in interface VisitorAccepter