    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 */
    017package org.apache.bcel.generic;
    018
    019import java.io.IOException;
    020
    021import org.apache.bcel.util.ByteSequence;
    022
    023/**
    024 * LDC_W - Push item from constant pool (wide index)
    025 *
    026 * <PRE>
    027 * Stack: ... -&gt; ..., item.word1, item.word2
    028 * </PRE>
    029 */
    030public class LDC_W extends LDC {
    031
    032    /**
    033     * Empty constructor needed for Instruction.readInstruction. Not to be used otherwise.
    034     */
    035    LDC_W() {
    036    }
    037
    038    public LDC_W(final int index) {
    039        super(index);
    040    }
    041
    042    /**
    043     * Read needed data (i.e., index) from file.
    044     */
    045    @Override
    046    protected void initFromFile(final ByteSequence bytes, final boolean wide) throws IOException {
    047        setIndex(bytes.readUnsignedShort());
    048        // Override just in case it has been changed
    049        super.setOpcode(org.apache.bcel.Const.LDC_W);
    050        super.setLength(3);
    051    }
    052}