001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 *  Unless required by applicable law or agreed to in writing, software
012 *  distributed under the License is distributed on an "AS IS" BASIS,
013 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 *  See the License for the specific language governing permissions and
015 *  limitations under the License.
016 *
017 */
018package org.apache.bcel.generic;
019
020import org.apache.bcel.ExceptionConst;
021
022/**
023 * NEW - Create new object
024 * <PRE>Stack: ... -&gt; ..., objectref</PRE>
025 *
026 */
027public class NEW extends CPInstruction implements LoadClass, AllocationInstruction,
028        ExceptionThrower, StackProducer {
029
030    /**
031     * Empty constructor needed for Instruction.readInstruction.
032     * Not to be used otherwise.
033     */
034    NEW() {
035    }
036
037
038    public NEW(final int index) {
039        super(org.apache.bcel.Const.NEW, index);
040    }
041
042
043    @Override
044    public Class<?>[] getExceptions() {
045        return ExceptionConst.createExceptions(ExceptionConst.EXCS.EXCS_CLASS_AND_INTERFACE_RESOLUTION,
046            ExceptionConst.ILLEGAL_ACCESS_ERROR,
047            ExceptionConst.INSTANTIATION_ERROR);
048    }
049
050
051    @Override
052    public ObjectType getLoadClassType( final ConstantPoolGen cpg ) {
053        return (ObjectType) getType(cpg);
054    }
055
056
057    /**
058     * Call corresponding visitor method(s). The order is:
059     * Call visitor methods of implemented interfaces first, then
060     * call methods according to the class hierarchy in descending order,
061     * i.e., the most specific visitXXX() call comes last.
062     *
063     * @param v Visitor object
064     */
065    @Override
066    public void accept( final Visitor v ) {
067        v.visitLoadClass(this);
068        v.visitAllocationInstruction(this);
069        v.visitExceptionThrower(this);
070        v.visitStackProducer(this);
071        v.visitTypedInstruction(this);
072        v.visitCPInstruction(this);
073        v.visitNEW(this);
074    }
075}