1/* Copyright (C) 2003 Vladimir Roubtsov. All rights reserved. 2 * 3 * This program and the accompanying materials are made available under 4 * the terms of the Common Public License v1.0 which accompanies this distribution, 5 * and is available at http://www.eclipse.org/legal/cpl-v10.html 6 * 7 * $Id: SyntheticAttribute_info.java,v 1.1.1.1.2.1 2004/07/10 03:34:52 vlad_r Exp $ 8 */ 9package com.vladium.jcd.cls.attribute; 10 11import java.io.IOException; 12 13import com.vladium.jcd.lib.UDataOutputStream; 14 15// ---------------------------------------------------------------------------- 16/** 17 * The Synthetic attribute is a fixed-length attribute in the attributes table 18 * of ClassFile, {@link com.vladium.jcd.cls.Field_info}, and 19 * {@link com.vladium.jcd.cls.Method_info} structures. A class member that does 20 * not appear in the source code must be marked using a Synthetic attribute.<P> 21 * 22 * The Synthetic attribute has the following format: 23 * <PRE> 24 * Synthetic_attribute { 25 * u2 attribute_name_index; 26 * u4 attribute_length; 27 * } 28 * </PRE> 29 * 30 * The value of the attribute_name_index item must be a valid index into the 31 * constant_pool table. The constant_pool entry at that index must be a CONSTANT_Utf8_info 32 * structure representing the string "Synthetic".<P> 33 * 34 * The value of the attribute_length item is zero. 35 * 36 * @author (C) 2001, Vlad Roubtsov 37 */ 38public 39final class SyntheticAttribute_info extends Attribute_info 40{ 41 // public: ................................................................ 42 43 44 public SyntheticAttribute_info (final int attribute_name_index) 45 { 46 super (attribute_name_index, 0); 47 } 48 49 50 public long length () 51 { 52 return 6; 53 } 54 55 // Visitor: 56 57 public void accept (final IAttributeVisitor visitor, final Object ctx) 58 { 59 visitor.visit (this, ctx); 60 } 61 62 public String toString () 63 { 64 return "SyntheticValueAttribute_info: [attribute_name_index = " + m_name_index + ", attribute_length = " + m_attribute_length + ']'; 65 } 66 67 // Cloneable: 68 69 /** 70 * Performs a deep copy. 71 */ 72 public Object clone () 73 { 74 return super.clone (); 75 } 76 77 // IClassFormatOutput: 78 79 public void writeInClassFormat (final UDataOutputStream out) throws IOException 80 { 81 super.writeInClassFormat (out); 82 } 83 84 // protected: ............................................................. 85 86 // package: ............................................................... 87 88 89 SyntheticAttribute_info (final int attribute_name_index, final long attribute_length) 90 { 91 super (attribute_name_index, attribute_length); 92 } 93 94 // private: ............................................................... 95 96} // end of class 97// ---------------------------------------------------------------------------- 98 99