1/* 2 * Copyright (c) 1994, 2003, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26package sun.tools.asm; 27 28import sun.tools.java.*; 29import java.io.IOException; 30import java.io.DataOutputStream; 31 32/** 33 * Base constant data class. Every constant pool data item 34 * is derived from this class. 35 * 36 * WARNING: The contents of this source file are not part of any 37 * supported API. Code that depends on them does so at its own risk: 38 * they are subject to change or removal without notice. 39 */ 40 41abstract class ConstantPoolData implements RuntimeConstants { 42 int index; 43 44 /** 45 * Write the constant to the output stream 46 */ 47 abstract void write(Environment env, DataOutputStream out, ConstantPool tab) throws IOException; 48 49 /** 50 * Return the order of the constant 51 */ 52 int order() { 53 return 0; 54 } 55 56 /** 57 * Return the number of entries that it takes up in the constant pool 58 */ 59 int width() { 60 return 1; 61 } 62} 63