1 /*
   2  * reserved comment block
   3  * DO NOT REMOVE OR ALTER!
   4  */
   5 /*
   6  * Licensed to the Apache Software Foundation (ASF) under one or more
   7  * contributor license agreements.  See the NOTICE file distributed with
   8  * this work for additional information regarding copyright ownership.
   9  * The ASF licenses this file to You under the Apache License, Version 2.0
  10  * (the "License"); you may not use this file except in compliance with
  11  * the License.  You may obtain a copy of the License at
  12  *
  13  *      http://www.apache.org/licenses/LICENSE-2.0
  14  *
  15  * Unless required by applicable law or agreed to in writing, software
  16  * distributed under the License is distributed on an "AS IS" BASIS,
  17  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  18  * See the License for the specific language governing permissions and
  19  * limitations under the License.
  20  */
  21 
  22 package com.sun.org.apache.bcel.internal.generic;
  23 
  24 import java.io.DataOutputStream;
  25 import java.io.IOException;
  26 
  27 import com.sun.org.apache.bcel.internal.Const;
  28 import com.sun.org.apache.bcel.internal.ExceptionConst;
  29 
  30 /**
  31  * INVOKESPECIAL - Invoke instance method; special handling for superclass, private
  32  * and instance initialization method invocations
  33  *
  34  * <PRE>Stack: ..., objectref, [arg1, [arg2 ...]] -&gt; ...</PRE>
  35  *
  36  * @see
  37  * <a href="http://docs.oracle.com/javase/specs/jvms/se8/html/jvms-6.html#jvms-6.5.invokespecial">
  38  * The invokespecial instruction in The Java Virtual Machine Specification</a>
  39  */
  40 public class INVOKESPECIAL extends InvokeInstruction {
  41 
  42     /**
  43      * Empty constructor needed for Instruction.readInstruction.
  44      * Not to be used otherwise.
  45      */
  46     INVOKESPECIAL() {
  47     }
  48 
  49 
  50     public INVOKESPECIAL(final int index) {
  51         super(Const.INVOKESPECIAL, index);
  52     }
  53 
  54 
  55     /**
  56      * Dump instruction as byte code to stream out.
  57      * @param out Output stream
  58      */
  59     @Override
  60     public void dump( final DataOutputStream out ) throws IOException {
  61         out.writeByte(super.getOpcode());
  62         out.writeShort(super.getIndex());
  63     }
  64 
  65     @Override
  66     public Class<?>[] getExceptions() {
  67         return ExceptionConst.createExceptions(ExceptionConst.EXCS.EXCS_FIELD_AND_METHOD_RESOLUTION,
  68             ExceptionConst.NULL_POINTER_EXCEPTION,
  69             ExceptionConst.INCOMPATIBLE_CLASS_CHANGE_ERROR,
  70             ExceptionConst.ABSTRACT_METHOD_ERROR,
  71             ExceptionConst.UNSATISFIED_LINK_ERROR);
  72     }
  73 
  74 
  75     /**
  76      * Call corresponding visitor method(s). The order is:
  77      * Call visitor methods of implemented interfaces first, then
  78      * call methods according to the class hierarchy in descending order,
  79      * i.e., the most specific visitXXX() call comes last.
  80      *
  81      * @param v Visitor object
  82      */
  83     @Override
  84     public void accept( final Visitor v ) {
  85         v.visitExceptionThrower(this);
  86         v.visitTypedInstruction(this);
  87         v.visitStackConsumer(this);
  88         v.visitStackProducer(this);
  89         v.visitLoadClass(this);
  90         v.visitCPInstruction(this);
  91         v.visitFieldOrMethod(this);
  92         v.visitInvokeInstruction(this);
  93         v.visitINVOKESPECIAL(this);
  94     }
  95 }