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 */ 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 classes that contain static initializers. 29 * 30 * @author Eric Lafortune 31 */ 32public class StaticInitializerContainingClassMarker 33extends SimplifiedVisitor 34implements ClassVisitor 35{ 36 // Implementations for ClassVisitor. 37 38 public void visitAnyClass(Clazz clazz) 39 { 40 if (clazz.findMethod(ClassConstants.METHOD_NAME_CLINIT, 41 ClassConstants.METHOD_TYPE_CLINIT) != null) 42 { 43 setStaticInitializer(clazz); 44 } 45 } 46 47 48 // Small utility methods. 49 50 private static void setStaticInitializer(Clazz clazz) 51 { 52 ClassOptimizationInfo info = ClassOptimizationInfo.getClassOptimizationInfo(clazz); 53 if (info != null) 54 { 55 info.setContainsStaticInitializer(); 56 } 57 } 58 59 60 public static boolean containsStaticInitializer(Clazz clazz) 61 { 62 ClassOptimizationInfo info = ClassOptimizationInfo.getClassOptimizationInfo(clazz); 63 return info == null || info.containsStaticInitializer(); 64 } 65}