MONITORENTER.java

/*
 * 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
 *  limitations under the License.
 *
 */
package org.apache.bcel.generic;

import org.apache.bcel.ExceptionConst;

/**
 * MONITORENTER - Enter monitor for object
 * <PRE>Stack: ..., objectref -&gt; ...</PRE>
 *
 * @version $Id: MONITORENTER.java 1806200 2017-08-25 16:33:06Z ggregory $
 */
public class MONITORENTER extends Instruction implements ExceptionThrower, StackConsumer {

    public MONITORENTER() {
        super(org.apache.bcel.Const.MONITORENTER, (short) 1);
    }


    @Override
    public Class<?>[] getExceptions() {
        return new Class[] {
            ExceptionConst.NULL_POINTER_EXCEPTION
        };
    }


    /**
     * Call corresponding visitor method(s). The order is:
     * Call visitor methods of implemented interfaces first, then
     * call methods according to the class hierarchy in descending order,
     * i.e., the most specific visitXXX() call comes last.
     *
     * @param v Visitor object
     */
    @Override
    public void accept( final Visitor v ) {
        v.visitExceptionThrower(this);
        v.visitStackConsumer(this);
        v.visitMONITORENTER(this);
    }
}