00001 package ca.mcgill.sable.soot.coffi; 00002 00003 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 00004 * Jimple, a 3-address code Java(TM) bytecode representation. * 00005 * Copyright (C) 1997, 1998 Raja Vallee-Rai (kor@sable.mcgill.ca) * 00006 * All rights reserved. * 00007 * * 00008 * This work was done as a project of the Sable Research Group, * 00009 * School of Computer Science, McGill University, Canada * 00010 * (http://www.sable.mcgill.ca/). It is understood that any * 00011 * modification not identified as such is not covered by the * 00012 * preceding statement. * 00013 * * 00014 * This work is free software; you can redistribute it and/or * 00015 * modify it under the terms of the GNU Library General Public * 00016 * License as published by the Free Software Foundation; either * 00017 * version 2 of the License, or (at your option) any later version. * 00018 * * 00019 * This work is distributed in the hope that it will be useful, * 00020 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00021 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * 00022 * Library General Public License for more details. * 00023 * * 00024 * You should have received a copy of the GNU Library General Public * 00025 * License along with this library; if not, write to the * 00026 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * 00027 * Boston, MA 02111-1307, USA. * 00028 * * 00029 * Java is a trademark of Sun Microsystems, Inc. * 00030 * * 00031 * To submit a bug report, send a comment, or get the latest news on * 00032 * this project and other Sable Research Group projects, please * 00033 * visit the web site: http://www.sable.mcgill.ca/ * 00034 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ 00035 00036 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 00037 * Coffi, a bytecode parser for the Java(TM) language. * 00038 * Copyright (C) 1996, 1997 Clark Verbrugge (clump@sable.mcgill.ca). * 00039 * All rights reserved. * 00040 * * 00041 * This work was done as a project of the Sable Research Group, * 00042 * School of Computer Science, McGill University, Canada * 00043 * (http://www.sable.mcgill.ca/). It is understood that any * 00044 * modification not identified as such is not covered by the * 00045 * preceding statement. * 00046 * * 00047 * This work is free software; you can redistribute it and/or * 00048 * modify it under the terms of the GNU Library General Public * 00049 * License as published by the Free Software Foundation; either * 00050 * version 2 of the License, or (at your option) any later version. * 00051 * * 00052 * This work is distributed in the hope that it will be useful, * 00053 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00054 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * 00055 * Library General Public License for more details. * 00056 * * 00057 * You should have received a copy of the GNU Library General Public * 00058 * License along with this library; if not, write to the * 00059 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * 00060 * Boston, MA 02111-1307, USA. * 00061 * * 00062 * Java is a trademark of Sun Microsystems, Inc. * 00063 * * 00064 * To submit a bug report, send a comment, or get the latest news on * 00065 * this project and other Sable Research Group projects, please * 00066 * visit the web site: http://www.sable.mcgill.ca/ * 00067 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ 00068 00069 /* 00070 Reference Version 00071 ----------------- 00072 This is the latest official version on which this file is based. 00073 The reference version is: $CoffiVersion: 1.1 $ 00074 $SootVersion: 1.beta.4 $ 00075 00076 Change History 00077 -------------- 00078 A) Notes: 00079 00080 Please use the following template. Most recent changes should 00081 appear at the top of the list. 00082 00083 - Modified on [date (March 1, 1900)] by [name]. [(*) if appropriate] 00084 [description of modification]. 00085 00086 Any Modification flagged with "(*)" was done as a project of the 00087 Sable Research Group, School of Computer Science, 00088 McGill University, Canada (http://www.sable.mcgill.ca/). 00089 00090 You should add your copyright, using the following template, at 00091 the top of this file, along with other copyrights. 00092 00093 * * 00094 * Modifications by [name] are * 00095 * Copyright (C) [year(s)] [your name (or company)]. All rights * 00096 * reserved. * 00097 * * 00098 00099 B) Changes: 00100 00101 - Modified on November 13, 1998 by Raja Vallee-Rai (kor@sable.mcgill.ca) (*) 00102 Changed some short's to int's to properly contain unsigned 00103 short values. 00104 00105 - Modified on November 2, 1998 by Raja Vallee-Rai (kor@sable.mcgill.ca) (*) 00106 Repackaged all source files and performed extensive modifications. 00107 First initial release of Soot. 00108 00109 - Modified on 15-Jun-1998 by Raja Vallee-Rai (kor@sable.mcgill.ca). (*) 00110 First internal release (Version 0.1). 00111 */ 00112 00113 import java.io.*; 00114 00115 /** A constant pool entry of type CONSTANT_Fieldref. 00116 * @see cp_info 00117 * @author Clark Verbrugge 00118 */ 00119 class CONSTANT_Fieldref_info extends cp_info { 00120 /** Constant pool index of a CONSTANT_Class object. 00121 * @see CONSTANT_Class_info 00122 */ 00123 public int class_index; 00124 /** Constant pool index of a CONSTANT_NameAndType object. 00125 * @see CONSTANT_NameAndType_info 00126 */ 00127 public int name_and_type_index; 00128 /** Compares this entry with another cp_info object (which may reside 00129 * in a different constant pool). 00130 * @param constant_pool constant pool of ClassFile for this. 00131 * @param cp constant pool entry to compare against. 00132 * @param cp_constant_pool constant pool of ClassFile for cp. 00133 * @return a value <0, 0, or >0 indicating whether this is smaller, 00134 * the same or larger than cp. 00135 * @see cp_info#compareTo 00136 */ 00137 public int compareTo(cp_info constant_pool[],cp_info cp,cp_info cp_constant_pool[]) { 00138 int i; 00139 if (tag!=cp.tag) return tag-cp.tag; 00140 CONSTANT_Fieldref_info cu = (CONSTANT_Fieldref_info)cp; 00141 i = constant_pool[class_index]. 00142 compareTo(constant_pool,cp_constant_pool[cu.class_index],cp_constant_pool); 00143 if (i!=0) return i; 00144 return constant_pool[name_and_type_index]. 00145 compareTo(constant_pool,cp_constant_pool[cu.name_and_type_index], 00146 cp_constant_pool); 00147 } 00148 /** Returns the size of this cp_info object. 00149 * @return number of bytes occupied by this object. 00150 * @see cp_info#size 00151 */ 00152 public int size() { return 5; } 00153 /** Returns a String representation of this entry. 00154 * @param constant_pool constant pool of ClassFile. 00155 * @return String representation of this entry. 00156 * @see cp_info#toString 00157 */ 00158 public String toString(cp_info constant_pool[]) { 00159 CONSTANT_Class_info cc = (CONSTANT_Class_info)(constant_pool[class_index]); 00160 CONSTANT_NameAndType_info cn = 00161 (CONSTANT_NameAndType_info)(constant_pool[name_and_type_index]); 00162 return cc.toString(constant_pool) + "." + cn.toString(constant_pool); 00163 } 00164 /** Returns a String description of what kind of entry this is. 00165 * @return the String "fieldref". 00166 * @see cp_info#typeName 00167 */ 00168 public String typeName() { return "fieldref"; } 00169 }
1.2.10 written by Dimitri van Heesch,
© 1997-2001