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JDK14/Java14源码在线阅读 / java.xml / share / classes / com / sun / org / apache / bcel / internal / generic / ArrayInstruction.java
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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,
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package com.sun.org.apache.bcel.internal.generic;

import com.sun.org.apache.bcel.internal.ExceptionConst;

/**
 * Super class for instructions dealing with array access such as IALOAD.
 *
 * @version $Id$
 */
public abstract class ArrayInstruction extends Instruction implements ExceptionThrower,
        TypedInstruction {

    /**
     * Empty constructor needed for Instruction.readInstruction.
     * Not to be used otherwise.
     */
    ArrayInstruction() {
    }


    /**
     * @param opcode of instruction
     */
    protected ArrayInstruction(final short opcode) {
        super(opcode, (short) 1);
    }


    @Override
    public Class<?>[] getExceptions() {
        return ExceptionConst.createExceptions(ExceptionConst.EXCS.EXCS_ARRAY_EXCEPTION);
    }


    /** @return type associated with the instruction
     */
    @Override
    public Type getType( final ConstantPoolGen cp ) {
        final short _opcode = super.getOpcode();
        switch (_opcode) {
            case com.sun.org.apache.bcel.internal.Const.IALOAD:
            case com.sun.org.apache.bcel.internal.Const.IASTORE:
                return Type.INT;
            case com.sun.org.apache.bcel.internal.Const.CALOAD:
            case com.sun.org.apache.bcel.internal.Const.CASTORE:
                return Type.CHAR;
            case com.sun.org.apache.bcel.internal.Const.BALOAD:
            case com.sun.org.apache.bcel.internal.Const.BASTORE:
                return Type.BYTE;
            case com.sun.org.apache.bcel.internal.Const.SALOAD:
            case com.sun.org.apache.bcel.internal.Const.SASTORE:
                return Type.SHORT;
            case com.sun.org.apache.bcel.internal.Const.LALOAD:
            case com.sun.org.apache.bcel.internal.Const.LASTORE:
                return Type.LONG;
            case com.sun.org.apache.bcel.internal.Const.DALOAD:
            case com.sun.org.apache.bcel.internal.Const.DASTORE:
                return Type.DOUBLE;
            case com.sun.org.apache.bcel.internal.Const.FALOAD:

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