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 */
017package org.apache.bcel.generic;
018
019import org.apache.bcel.ExceptionConst;
020
021/**
022 * NEW - Create new object
023 *
024 * <PRE>
025 * Stack: ... -&gt; ..., objectref
026 * </PRE>
027 */
028public class NEW extends CPInstruction implements LoadClass, AllocationInstruction, ExceptionThrower, StackProducer {
029
030    /**
031     * Empty constructor needed for Instruction.readInstruction. Not to be used otherwise.
032     */
033    NEW() {
034    }
035
036    public NEW(final int index) {
037        super(org.apache.bcel.Const.NEW, index);
038    }
039
040    /**
041     * Call corresponding visitor method(s). The order is: Call visitor methods of implemented interfaces first, then call
042     * methods according to the class hierarchy in descending order, i.e., the most specific visitXXX() call comes last.
043     *
044     * @param v Visitor object
045     */
046    @Override
047    public void accept(final Visitor v) {
048        v.visitLoadClass(this);
049        v.visitAllocationInstruction(this);
050        v.visitExceptionThrower(this);
051        v.visitStackProducer(this);
052        v.visitTypedInstruction(this);
053        v.visitCPInstruction(this);
054        v.visitNEW(this);
055    }
056
057    @Override
058    public Class<?>[] getExceptions() {
059        return ExceptionConst.createExceptions(ExceptionConst.EXCS.EXCS_CLASS_AND_INTERFACE_RESOLUTION, ExceptionConst.ILLEGAL_ACCESS_ERROR,
060            ExceptionConst.INSTANTIATION_ERROR);
061    }
062
063    @Override
064    public ObjectType getLoadClassType(final ConstantPoolGen cpg) {
065        return (ObjectType) getType(cpg);
066    }
067}