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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */
package org.apache.bcel.generic;

import java.io.DataOutputStream;
import java.io.IOException;

import org.apache.bcel.Const;
import org.apache.bcel.ExceptionConst;

/**
 * INVOKEVIRTUAL - Invoke instance method; dispatch based on class
 *
 * 
Stack: ..., objectref, [arg1, [arg2 ...]] -> ...
* * @see * * The invokevirtual instruction in The Java Virtual Machine Specification */ public class INVOKEVIRTUAL extends InvokeInstruction { /** * Empty constructor needed for Instruction.readInstruction. * Not to be used otherwise. */ INVOKEVIRTUAL() { } public INVOKEVIRTUAL(final int index) { super(Const.INVOKEVIRTUAL, index); } /** * Dump instruction as byte code to stream out. * @param out Output stream */ @Override public void dump( final DataOutputStream out ) throws IOException { out.writeByte(super.getOpcode()); out.writeShort(super.getIndex()); } @Override public Class[] getExceptions() { return ExceptionConst.createExceptions(ExceptionConst.EXCS.EXCS_FIELD_AND_METHOD_RESOLUTION, ExceptionConst.NULL_POINTER_EXCEPTION, ExceptionConst.INCOMPATIBLE_CLASS_CHANGE_ERROR, ExceptionConst.ABSTRACT_METHOD_ERROR, ExceptionConst.UNSATISFIED_LINK_ERROR); } /** * Call corresponding visitor method(s). The order is: * Call visitor methods of implemented interfaces first, then * call methods according to the class hierarchy in descending order, * i.e., the most specific visitXXX() call comes last. * * @param v Visitor object */ @Override public void accept( final Visitor v ) { v.visitExceptionThrower(this); v.visitTypedInstruction(this); v.visitStackConsumer(this); v.visitStackProducer(this); v.visitLoadClass(this); v.visitCPInstruction(this); v.visitFieldOrMethod(this); v.visitInvokeInstruction(this); v.visitINVOKEVIRTUAL(this); } }




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