1b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/* 2b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * ProGuard -- shrinking, optimization, obfuscation, and preverification 3b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * of Java bytecode. 4b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 5b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang * Copyright (c) 2002-2013 Eric Lafortune (eric@graphics.cornell.edu) 6b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 7b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This program is free software; you can redistribute it and/or modify it 8b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * under the terms of the GNU General Public License as published by the Free 9b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Software Foundation; either version 2 of the License, or (at your option) 10b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * any later version. 11b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 12b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This program is distributed in the hope that it will be useful, but WITHOUT 13b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * more details. 16b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 17b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * You should have received a copy of the GNU General Public License along 18b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * with this program; if not, write to the Free Software Foundation, Inc., 19b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 21b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratopackage proguard.optimize.evaluation; 22b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 23b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.classfile.Clazz; 24b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.classfile.attribute.CodeAttribute; 25b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.evaluation.BasicBranchUnit; 26b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.evaluation.value.Value; 27b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 28b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/** 29b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This BranchUnit remembers the branch unit commands that are invoked on it. 30b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 31b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @author Eric Lafortune 32b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 33b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoclass TracedBranchUnit 34b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoextends BasicBranchUnit 35b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato{ 36b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Implementations for BranchUnit. 37b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 38b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public void branchConditionally(Clazz clazz, 39b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato CodeAttribute codeAttribute, 40b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato int offset, 41b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato int branchTarget, 42b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato int conditional) 43b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 44b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if (conditional == Value.ALWAYS) 45b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 46b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Always branch. 47b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato super.branch(clazz, codeAttribute, offset, branchTarget); 48b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 49b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato else if (conditional != Value.NEVER) 50b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 51b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Maybe branch. 52b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato super.branchConditionally(clazz, codeAttribute, offset, branchTarget, conditional); 53b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 54b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato else 55b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 56b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato super.setCalled(); 57b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 58b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 59b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato} 60