1/* 2 * ProGuard -- shrinking, optimization, obfuscation, and preverification 3 * of Java bytecode. 4 * 5 * Copyright (c) 2002-2013 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 */ 21package proguard.optimize.info; 22 23import proguard.classfile.*; 24import proguard.classfile.util.SimplifiedVisitor; 25import proguard.classfile.visitor.ClassVisitor; 26 27/** 28 * This ClassVisitor marks all program classes that it visits as caught. 29 * This means that these classes are exception classes that occur in exception 30 * handlers. 31 * 32 * @author Eric Lafortune 33 */ 34public class CaughtClassMarker 35implements ClassVisitor 36{ 37 // Implementations for ClassVisitor. 38 39 public void visitLibraryClass(LibraryClass libraryClass) {} 40 41 public void visitProgramClass(ProgramClass programClass) 42 { 43 setCaught(programClass); 44 } 45 46 47 // Small utility methods. 48 49 private static void setCaught(Clazz clazz) 50 { 51 ClassOptimizationInfo info = ClassOptimizationInfo.getClassOptimizationInfo(clazz); 52 if (info != null) 53 { 54 info.setCaught(); 55 } 56 } 57 58 59 public static boolean isCaught(Clazz clazz) 60 { 61 ClassOptimizationInfo info = ClassOptimizationInfo.getClassOptimizationInfo(clazz); 62 return info == null || info.isCaught(); 63 } 64}