/*
* Javassist, a Java-bytecode translator toolkit.
* Copyright (C) 1999- Shigeru Chiba. All Rights Reserved.
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. Alternatively, the contents of this file may be used under
* the terms of the GNU Lesser General Public License Version 2.1 or later,
* or the Apache License Version 2.0.
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*/
package javassist.bytecode;
import java.io.
DataInputStream;
import java.io.
IOException;
import java.util.
Map;
/**
* <code>NestHost_attribute</code>.
* It was introduced by JEP-181. See JVMS 4.7.28 for the specification.
*
* @since 3.24
*/
public class
NestHostAttribute extends
AttributeInfo {
/**
* The name of this attribute <code>"NestHost"</code>.
*/
public static final
String tag = "NestHost";
NestHostAttribute(
ConstPool cp, int
n,
DataInputStream in) throws
IOException {
super(
cp,
n,
in);
}
private
NestHostAttribute(
ConstPool cp, int
hostIndex) {
super(
cp,
tag, new byte[2]);
ByteArray.
write16bit(
hostIndex,
get(), 0);
}
/**
* Makes a copy. Class names are replaced according to the
* given <code>Map</code> object.
*
* @param newCp the constant pool table used by the new copy.
* @param classnames pairs of replaced and substituted
* class names.
*/
@
Override
public
AttributeInfo copy(
ConstPool newCp,
Map<
String,
String>
classnames) {
int
hostIndex =
ByteArray.
readU16bit(
get(), 0);
int
newHostIndex =
getConstPool().
copy(
hostIndex,
newCp,
classnames);
return new
NestHostAttribute(
newCp,
newHostIndex);
}
/**
* Returns <code>host_class_index</code>. The constant pool entry
* at this entry is a <code>CONSTANT_Class_info</code> structure.
* @return the value of <code>host_class_index</code>.
*/
public int
hostClassIndex() {
return
ByteArray.
readU16bit(
info, 0);
}
}