    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.IOException;
    021
    022import org.apache.bcel.util.ByteSequence;
    023
    024/**
    025 * LDC_W - Push item from constant pool (wide index)
    026 *
    027 * <PRE>Stack: ... -&gt; ..., item.word1, item.word2</PRE>
    028 *
    029 * @version $Id: LDC_W.java 1812166 2017-10-13 23:48:11Z ggregory $
    030 */
    031public class LDC_W extends LDC {
    032
    033    /**
    034     * Empty constructor needed for Instruction.readInstruction.
    035     * Not to be used otherwise.
    036     */
    037    LDC_W() {
    038    }
    039
    040
    041    public LDC_W(final int index) {
    042        super(index);
    043    }
    044
    045
    046    /**
    047     * Read needed data (i.e., index) from file.
    048     */
    049    @Override
    050    protected void initFromFile( final ByteSequence bytes, final boolean wide ) throws IOException {
    051        setIndex(bytes.readUnsignedShort());
    052        // Override just in case it has been changed
    053        super.setOpcode(org.apache.bcel.Const.LDC_W);
    054        super.setLength(3);
    055    }
    056}