1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
/*
* ProGuard -- shrinking, optimization, obfuscation, and preverification
* of Java bytecode.
*
* Copyright (c) 2002-2014 Eric Lafortune (eric@graphics.cornell.edu)
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package proguard;
import proguard.classfile.ClassPool;
import proguard.classfile.visitor.*;
import proguard.optimize.*;
import java.io.*;
/**
* This class prints out the seeds specified by keep options.
*
* @author Eric Lafortune
*/
public class SeedPrinter
{
private final PrintStream ps;
/**
* Creates a new ConfigurationWriter for the given PrintStream.
*/
public SeedPrinter(PrintStream ps) throws IOException
{
this.ps = ps;
}
/**
* Prints out the seeds for the classes in the given program class pool.
* @param configuration the configuration containing the keep options.
* @throws IOException if an IO error occurs while writing the configuration.
*/
public void write(Configuration configuration,
ClassPool programClassPool,
ClassPool libraryClassPool) throws IOException
{
// Check if we have at least some keep commands.
if (configuration.keep == null)
{
throw new IOException("You have to specify '-keep' options for the shrinking step.");
}
// Clean up any old visitor info.
programClassPool.classesAccept(new ClassCleaner());
libraryClassPool.classesAccept(new ClassCleaner());
// Create a visitor for printing out the seeds. We're printing out
// the program elements that are preserved against shrinking,
// optimization, or obfuscation.
KeepMarker keepMarker = new KeepMarker();
ClassPoolVisitor classPoolvisitor =
ClassSpecificationVisitorFactory.createClassPoolVisitor(configuration.keep,
keepMarker,
keepMarker,
true,
true,
true);
// Mark the seeds.
programClassPool.accept(classPoolvisitor);
libraryClassPool.accept(classPoolvisitor);
// Print out the seeds.
SimpleClassPrinter printer = new SimpleClassPrinter(false, ps);
programClassPool.classesAcceptAlphabetically(new MultiClassVisitor(
new ClassVisitor[]
{
new KeptClassFilter(printer),
new AllMemberVisitor(new KeptMemberFilter(printer))
}));
}
}
|
