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      1 /*
      2  * Licensed to the Apache Software Foundation (ASF) under one or more
      3  * contributor license agreements.  See the NOTICE file distributed with
      4  * this work for additional information regarding copyright ownership.
      5  * The ASF licenses this file to You under the Apache License, Version 2.0
      6  * (the "License"); you may not use this file except in compliance with
      7  * the License.  You may obtain a copy of the License at
      8  *
      9  *      http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  *  Unless required by applicable law or agreed to in writing, software
     12  *  distributed under the License is distributed on an "AS IS" BASIS,
     13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  *  See the License for the specific language governing permissions and
     15  *  limitations under the License.
     16  *
     17  */
     18 package org.apache.bcel.generic;
     19 
     20 import org.apache.bcel.ExceptionConst;
     21 
     22 /**
     23  * NEW - Create new object
     24  * <PRE>Stack: ... -&gt; ..., objectref</PRE>
     25  *
     26  * @version $Id$
     27  */
     28 public class NEW extends CPInstruction implements LoadClass, AllocationInstruction,
     29         ExceptionThrower, StackProducer {
     30 
     31     /**
     32      * Empty constructor needed for Instruction.readInstruction.
     33      * Not to be used otherwise.
     34      */
     35     NEW() {
     36     }
     37 
     38 
     39     public NEW(final int index) {
     40         super(org.apache.bcel.Const.NEW, index);
     41     }
     42 
     43 
     44     @Override
     45     public Class<?>[] getExceptions() {
     46         return ExceptionConst.createExceptions(ExceptionConst.EXCS.EXCS_CLASS_AND_INTERFACE_RESOLUTION,
     47             ExceptionConst.ILLEGAL_ACCESS_ERROR,
     48             ExceptionConst.INSTANTIATION_ERROR);
     49     }
     50 
     51 
     52     @Override
     53     public ObjectType getLoadClassType( final ConstantPoolGen cpg ) {
     54         return (ObjectType) getType(cpg);
     55     }
     56 
     57 
     58     /**
     59      * Call corresponding visitor method(s). The order is:
     60      * Call visitor methods of implemented interfaces first, then
     61      * call methods according to the class hierarchy in descending order,
     62      * i.e., the most specific visitXXX() call comes last.
     63      *
     64      * @param v Visitor object
     65      */
     66     @Override
     67     public void accept( final Visitor v ) {
     68         v.visitLoadClass(this);
     69         v.visitAllocationInstruction(this);
     70         v.visitExceptionThrower(this);
     71         v.visitStackProducer(this);
     72         v.visitTypedInstruction(this);
     73         v.visitCPInstruction(this);
     74         v.visitNEW(this);
     75     }
     76 }
     77