    001/*
    002 * Licensed to the Apache Software Foundation (ASF) under one
    003 * or more contributor license agreements.  See the NOTICE file
    004 * distributed with this work for additional information
    005 * regarding copyright ownership.  The ASF licenses this file
    006 * to you under the Apache License, Version 2.0 (the
    007 * "License"); you may not use this file except in compliance
    008 * with the License.  You may obtain a copy of the License at
    009 *
    010 *   https://www.apache.org/licenses/LICENSE-2.0
    011 *
    012 * Unless required by applicable law or agreed to in writing,
    013 * software distributed under the License is distributed on an
    014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    015 * KIND, either express or implied.  See the License for the
    016 * specific language governing permissions and limitations
    017 * under the License.
    018 */
    019package org.apache.bcel.generic;
    020
    021import java.io.IOException;
    022
    023import org.apache.bcel.util.ByteSequence;
    024
    025/**
    026 * LDC_W - Push item from constant pool (wide index)
    027 *
    028 * <PRE>
    029 * Stack: ... -&gt; ..., item.word1, item.word2
    030 * </PRE>
    031 */
    032public class LDC_W extends LDC {
    033
    034    /**
    035     * Empty constructor needed for Instruction.readInstruction. Not to be used otherwise.
    036     */
    037    LDC_W() {
    038    }
    039
    040    public LDC_W(final int index) {
    041        super(index);
    042    }
    043
    044    /**
    045     * Reads needed data (that is, index) from file.
    046     */
    047    @Override
    048    protected void initFromFile(final ByteSequence bytes, final boolean wide) throws IOException {
    049        setIndex(bytes.readUnsignedShort());
    050        // Override just in case it has been changed
    051        super.setOpcode(org.apache.bcel.Const.LDC_W);
    052        super.setLength(3);
    053    }
    054}