1 /* 2 * ProGuard -- shrinking, optimization, obfuscation, and preverification 3 * of Java bytecode. 4 * 5 * Copyright (c) 2002-2014 Eric Lafortune (eric@graphics.cornell.edu) 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the Free 9 * Software Foundation; either version 2 of the License, or (at your option) 10 * any later version. 11 * 12 * This program is distributed in the hope that it will be useful, but WITHOUT 13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15 * more details. 16 * 17 * You should have received a copy of the GNU General Public License along 18 * with this program; if not, write to the Free Software Foundation, Inc., 19 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 */ 21 package proguard; 22 23 import proguard.classfile.util.*; 24 import proguard.classfile.visitor.ClassVisitor; 25 26 import java.util.List; 27 28 /** 29 * This class checks if the user has forgotten to specify class members in 30 * some keep options in the configuration. 31 * 32 * @author Eric Lafortune 33 */ 34 public class KeepClassMemberChecker 35 { 36 private final WarningPrinter notePrinter; 37 38 39 /** 40 * Creates a new KeepClassMemberChecker. 41 */ KeepClassMemberChecker(WarningPrinter notePrinter)42 public KeepClassMemberChecker(WarningPrinter notePrinter) 43 { 44 this.notePrinter = notePrinter; 45 } 46 47 48 /** 49 * Checks if the given class specifications try to keep class members 50 * without actually specifying any, printing notes if necessary. 51 */ checkClassSpecifications(List keepClassSpecifications)52 public void checkClassSpecifications(List keepClassSpecifications) 53 { 54 if (keepClassSpecifications != null) 55 { 56 for (int index = 0; index < keepClassSpecifications.size(); index++) 57 { 58 KeepClassSpecification keepClassSpecification = 59 (KeepClassSpecification)keepClassSpecifications.get(index); 60 61 if (!keepClassSpecification.markClasses && 62 (keepClassSpecification.fieldSpecifications == null || 63 keepClassSpecification.fieldSpecifications.size() == 0) && 64 (keepClassSpecification.methodSpecifications == null || 65 keepClassSpecification.methodSpecifications.size() == 0)) 66 { 67 String className = keepClassSpecification.className; 68 if (className == null) 69 { 70 className = keepClassSpecification.extendsClassName; 71 } 72 73 if (className == null || 74 notePrinter.accepts(className)) 75 { 76 notePrinter.print(className, 77 "Note: the configuration doesn't specify which class members to keep for class '" + 78 (className == null ? 79 ConfigurationConstants.ANY_CLASS_KEYWORD : 80 ClassUtil.externalClassName(className)) + "'"); 81 } 82 } 83 } 84 } 85 } 86 } 87