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