    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 *
    017 */
    018package org.apache.bcel.generic;
    019
    020import java.io.DataOutputStream;
    021import java.io.IOException;
    022
    023import org.apache.bcel.Const;
    024import org.apache.bcel.ExceptionConst;
    025
    026/**
    027 * INVOKESTATIC - Invoke a class (static) method
    028 *
    029 * <PRE>Stack: ..., [arg1, [arg2 ...]] -&gt; ...</PRE>
    030 *
    031 * @see
    032 * <a href="https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-6.html#jvms-6.5.invokestatic">
    033 * The invokestatic instruction in The Java Virtual Machine Specification</a>
    034 */
    035public class INVOKESTATIC extends InvokeInstruction {
    036
    037    /**
    038     * Empty constructor needed for Instruction.readInstruction.
    039     * Not to be used otherwise.
    040     */
    041    INVOKESTATIC() {
    042    }
    043
    044
    045    public INVOKESTATIC(final int index) {
    046        super(Const.INVOKESTATIC, index);
    047    }
    048
    049
    050    /**
    051     * Dump instruction as byte code to stream out.
    052     * @param out Output stream
    053     */
    054    @Override
    055    public void dump( final DataOutputStream out ) throws IOException {
    056      out.writeByte(super.getOpcode());
    057      out.writeShort(super.getIndex());
    058    }
    059
    060    @Override
    061    public Class<?>[] getExceptions() {
    062        return ExceptionConst.createExceptions(ExceptionConst.EXCS.EXCS_FIELD_AND_METHOD_RESOLUTION,
    063            ExceptionConst.UNSATISFIED_LINK_ERROR,
    064            ExceptionConst.INCOMPATIBLE_CLASS_CHANGE_ERROR);
    065    }
    066
    067
    068    /**
    069     * Call corresponding visitor method(s). The order is:
    070     * Call visitor methods of implemented interfaces first, then
    071     * call methods according to the class hierarchy in descending order,
    072     * i.e., the most specific visitXXX() call comes last.
    073     *
    074     * @param v Visitor object
    075     */
    076    @Override
    077    public void accept( final Visitor v ) {
    078        v.visitExceptionThrower(this);
    079        v.visitTypedInstruction(this);
    080        v.visitStackConsumer(this);
    081        v.visitStackProducer(this);
    082        v.visitLoadClass(this);
    083        v.visitCPInstruction(this);
    084        v.visitFieldOrMethod(this);
    085        v.visitInvokeInstruction(this);
    086        v.visitINVOKESTATIC(this);
    087    }
    088}