BootstrapMethodsAttribute.java revision b9cc48a43ed984587c939d02fba5316bf5c0df6e 
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.classfile.attribute;
22
23import proguard.classfile.*;
24import proguard.classfile.attribute.visitor.*;
25import proguard.classfile.constant.visitor.ConstantVisitor;
26
27/**
28 * This Attribute represents a bootstrap methods attribute.
29 *
30 * @author Eric Lafortune
31 */
32public class BootstrapMethodsAttribute extends Attribute
33{
34    public int                   u2bootstrapMethodsCount;
35    public BootstrapMethodInfo[] bootstrapMethods;
36
37
38    /**
39     * Creates an uninitialized BootstrapMethodsAttribute.
40     */
41    public BootstrapMethodsAttribute()
42    {
43    }
44
45
46    /**
47     * Creates an initialized BootstrapMethodsAttribute.
48     */
49    public BootstrapMethodsAttribute(int                   u2attributeNameIndex,
50                                     int                   u2bootstrapMethodsCount,
51                                     BootstrapMethodInfo[] bootstrapMethods)
52    {
53        super(u2attributeNameIndex);
54
55        this.u2bootstrapMethodsCount = u2bootstrapMethodsCount;
56        this.bootstrapMethods        = bootstrapMethods;
57    }
58
59
60    // Implementations for Attribute.
61
62    public void accept(Clazz clazz, AttributeVisitor attributeVisitor)
63    {
64        attributeVisitor.visitBootstrapMethodsAttribute(clazz, this);
65    }
66
67
68    /**
69     * Applies the given constant pool visitor to all bootstrap method info
70     * entries.
71     */
72    public void bootstrapMethodEntriesAccept(Clazz clazz, BootstrapMethodInfoVisitor bootstrapMethodInfoVisitor)
73    {
74        for (int index = 0; index < u2bootstrapMethodsCount; index++)
75        {
76            // We don't need double dispatching here, since there is only one
77            // type of BootstrapMethodInfo.
78            bootstrapMethodInfoVisitor.visitBootstrapMethodInfo(clazz, bootstrapMethods[index]);
79        }
80    }
81
82
83    /**
84     * Applies the given constant pool visitor to the specified bootstrap method
85     * info entry.
86     */
87    public void bootstrapMethodEntryAccept(Clazz                      clazz,
88                                           int                        bootstrapMethodIndex,
89                                           BootstrapMethodInfoVisitor bootstrapMethodInfoVisitor)
90    {
91        // We don't need double dispatching here, since there is only one
92        // type of BootstrapMethodInfo.
93        bootstrapMethodInfoVisitor.visitBootstrapMethodInfo(clazz, bootstrapMethods[bootstrapMethodIndex]);
94    }
95}
96