1324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver/* 2324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * ProGuard -- shrinking, optimization, obfuscation, and preverification 3324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * of Java bytecode. 4324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * 5324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * Copyright (c) 2002-2013 Eric Lafortune (eric@graphics.cornell.edu) 6324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * 7324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * This program is free software; you can redistribute it and/or modify it 8324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * under the terms of the GNU General Public License as published by the Free 9324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * Software Foundation; either version 2 of the License, or (at your option) 10324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * any later version. 11324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * 12324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * This program is distributed in the hope that it will be useful, but WITHOUT 13324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * more details. 16324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * 17324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * You should have received a copy of the GNU General Public License along 18324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * with this program; if not, write to the Free Software Foundation, Inc., 19324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver */ 21324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverpackage proguard; 22324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 23324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverimport proguard.classfile.ClassPool; 24324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverimport proguard.classfile.util.ClassUtil; 25324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverimport proguard.classfile.visitor.ClassVersionSetter; 26324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 27324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverimport java.io.IOException; 28324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverimport java.util.*; 29324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 30324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver/** 31324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * This class sets the target version on program classes. 32 * 33 * @author Eric Lafortune 34 */ 35public class Targeter 36{ 37 private final Configuration configuration; 38 39 40 /** 41 * Creates a new Targeter to set the target version on program classes 42 * according to the given configuration. 43 */ 44 public Targeter(Configuration configuration) 45 { 46 this.configuration = configuration; 47 } 48 49 50 /** 51 * Sets the target version on classes in the given program class pool. 52 */ 53 public void execute(ClassPool programClassPool) throws IOException 54 { 55 Set newerClassVersions = configuration.warn != null ? null : new HashSet(); 56 57 programClassPool.classesAccept(new ClassVersionSetter(configuration.targetClassVersion, 58 newerClassVersions)); 59 60 if (newerClassVersions != null && 61 newerClassVersions.size() > 0) 62 { 63 System.err.print("Warning: some classes have more recent versions ("); 64 65 Iterator iterator = newerClassVersions.iterator(); 66 while (iterator.hasNext()) 67 { 68 Integer classVersion = (Integer)iterator.next(); 69 System.err.print(ClassUtil.externalClassVersion(classVersion.intValue())); 70 71 if (iterator.hasNext()) 72 { 73 System.err.print(","); 74 } 75 } 76 77 System.err.println(")"); 78 System.err.println(" than the target version ("+ClassUtil.externalClassVersion(configuration.targetClassVersion)+")."); 79 80 if (!configuration.ignoreWarnings) 81 { 82 System.err.println(" If you are sure this is not a problem,"); 83 System.err.println(" you could try your luck using the '-ignorewarnings' option."); 84 throw new IOException("Please correct the above warnings first."); 85 } 86 } 87 } 88} 89