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* reserved comment block
* DO NOT REMOVE OR ALTER!
*/
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
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package com.sun.org.apache.bcel.internal.generic;
import com.sun.org.apache.bcel.internal.Const;
/**
* Returnaddress, the type JSR or JSR_W instructions push upon the stack.
*
* see vmspec2 3.3.3
* @version $Id$
*/
public class ReturnaddressType extends Type {
public static final ReturnaddressType NO_TARGET = new ReturnaddressType();
private InstructionHandle returnTarget;
/**
* A Returnaddress [that doesn't know where to return to].
*/
private ReturnaddressType() {
super(Const.T_ADDRESS, "<return address>");
}
/**
* Creates a ReturnaddressType object with a target.
*/
public ReturnaddressType(final InstructionHandle returnTarget) {
super(Const.T_ADDRESS, "<return address targeting " + returnTarget + ">");
this.returnTarget = returnTarget;
}
/** @return a hash code value for the object.
*/
@Override
public int hashCode() {
if (returnTarget == null) {
return 0;
}
return returnTarget.hashCode();
}
/**
* Returns if the two Returnaddresses refer to the same target.
*/
@Override
public boolean equals( final Object rat ) {
if (!(rat instanceof ReturnaddressType)) {
return false;
}
final ReturnaddressType that = (ReturnaddressType) rat;
if (this.returnTarget == null || that.returnTarget == null) {
/**代码未完, 请加载全部代码(NowJava.com).**/