xapi.bytecode.attributes

Class AttributeInfo

java.lang.Object

xapi.bytecode.attributes.AttributeInfo

Direct Known Subclasses:

AnnotationDefaultAttribute, AnnotationsAttribute, CodeAttribute, ConstantAttribute, ExceptionsAttribute, InnerClassesAttribute, LineNumberAttribute, LocalVariableAttribute, ParameterAnnotationsAttribute, SignatureAttribute, SourceFileAttribute, StackMap, StackMapTable

public class AttributeInfo
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
protected ConstPool	constPool
protected byte[]	info
protected int	name

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AttributeInfo(ConstPool cp, int attrname, byte[] attrinfo)
protected	AttributeInfo(ConstPool cp, int n, DataInput in)
protected	AttributeInfo(ConstPool cp, String attrname)
	AttributeInfo(ConstPool cp, String attrname, byte[] attrinfo) Constructs an attribute_info structure.

Method Summary

Modifier and Type	Method and Description
AttributeInfo	copy(ConstPool newCp, Map<?,?> classnames) Makes a copy.
static ArrayList<AttributeInfo>	copyAll(ArrayList<?> list, ConstPool cp)
byte[]	get() Returns the info field of this attribute_info structure.
ConstPool	getConstPool() Returns a constant pool table.
static int	getLength(ArrayList<?> list)
String	getName() Returns an attribute name.
int	length() Returns the length of this attribute_info structure.
static AttributeInfo	lookup(ArrayList<?> list, String name)
static AttributeInfo	read(ConstPool cp, DataInput in)
static void	remove(ArrayList<?> list, String name)
static void	renameClass(List<?> attributes, Map<?,?> classnames)
static void	renameClass(List<?> attributes, String oldname, String newname)
void	set(byte[] newinfo) Sets the info field of this attribute_info structure.
static void	writeAll(ArrayList<?> list, DataOutputStream out)

Methods inherited from class java.lang.Object

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

Field Detail

constPool

protected ConstPool constPool

name

protected int name

info

protected byte[] info

Constructor Detail

AttributeInfo

protected AttributeInfo(ConstPool cp,
                        int attrname,
                        byte[] attrinfo)

AttributeInfo

protected AttributeInfo(ConstPool cp,
                        String attrname)

AttributeInfo

public AttributeInfo(ConstPool cp,
                     String attrname,
                     byte[] attrinfo)

Constructs an attribute_info structure.

Parameters:

cp - constant pool table

attrname - attribute name

attrinfo - info field of attribute_info structure.

AttributeInfo

protected AttributeInfo(ConstPool cp,
                        int n,
                        DataInput in)
                 throws IOException

Throws:

IOException

Method Detail

read

public static AttributeInfo read(ConstPool cp,
                                 DataInput in)
                          throws IOException

Throws:

IOException

getName

public String getName()

Returns an attribute name.

getConstPool

public ConstPool getConstPool()

Returns a constant pool table.

length

public int length()

Returns the length of this attribute_info structure. The returned value is attribute_length + 6.

get

public byte[] get()

Returns the info field of this attribute_info structure.

This method is not available if the object is an instance of CodeAttribute.

set

public void set(byte[] newinfo)

Sets the info field of this attribute_info structure.

This method is not available if the object is an instance of CodeAttribute.

copy

public AttributeInfo copy(ConstPool newCp,
                          Map<?,?> classnames)

Makes a copy. Class names are replaced according to the given Map object.

Parameters:

newCp - the constant pool table used by the new copy.

classnames - pairs of replaced and substituted class names.

getLength

public static int getLength(ArrayList<?> list)

lookup

public static AttributeInfo lookup(ArrayList<?> list,
                                   String name)

remove

public static void remove(ArrayList<?> list,
                          String name)

writeAll

public static void writeAll(ArrayList<?> list,
                            DataOutputStream out)
                     throws IOException

Throws:

IOException

copyAll

public static ArrayList<AttributeInfo> copyAll(ArrayList<?> list,
                                               ConstPool cp)

renameClass

public static void renameClass(List<?> attributes,
                               String oldname,
                               String newname)

renameClass

public static void renameClass(List<?> attributes,
                               Map<?,?> classnames)