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.classfile.editor;
22
23import proguard.classfile.attribute.*;
24import proguard.util.ArrayUtil;
25
26/**
27 * This class can add bootstrap methods to a given bootstrap methods attribute.
28 * Bootstrap methods to be added must have been filled out beforehand.
29 *
30 * @author Eric Lafortune
31 */
32public class BootstrapMethodsAttributeEditor
33{
34    private BootstrapMethodsAttribute targetBootstrapMethodsAttribute;
35
36
37    /**
38     * Creates a new BootstrapMethodsAttributeEditor that will edit bootstrap
39     * methods in the given bootstrap methods attribute.
40     */
41    public BootstrapMethodsAttributeEditor(BootstrapMethodsAttribute targetBootstrapMethodsAttribute)
42    {
43        this.targetBootstrapMethodsAttribute = targetBootstrapMethodsAttribute;
44    }
45
46
47    /**
48     * Adds a given bootstrap method to the bootstrap methods attribute.
49     * @return the index of the bootstrap method.
50     */
51    public int addBootstrapMethodInfo(BootstrapMethodInfo bootstrapMethodInfo)
52    {
53        targetBootstrapMethodsAttribute.bootstrapMethods =
54            (BootstrapMethodInfo[])ArrayUtil.add(targetBootstrapMethodsAttribute.bootstrapMethods,
55                                                 targetBootstrapMethodsAttribute.u2bootstrapMethodsCount,
56                                                 bootstrapMethodInfo);
57
58        return targetBootstrapMethodsAttribute.u2bootstrapMethodsCount++;
59    }
60}