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: ... -> ..., item.word1, item.word2</PRE> 028 * 029 */ 030public class LDC_W extends LDC { 031 032 /** 033 * Empty constructor needed for Instruction.readInstruction. 034 * Not to be used otherwise. 035 */ 036 LDC_W() { 037 } 038 039 040 public LDC_W(final int index) { 041 super(index); 042 } 043 044 045 /** 046 * Read needed data (i.e., index) from file. 047 */ 048 @Override 049 protected void initFromFile( final ByteSequence bytes, final boolean wide ) throws IOException { 050 setIndex(bytes.readUnsignedShort()); 051 // Override just in case it has been changed 052 super.setOpcode(org.apache.bcel.Const.LDC_W); 053 super.setLength(3); 054 } 055}