1/*
2 * Copyright 2013, Google Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met:
8 *
9 *     * Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *     * Redistributions in binary form must reproduce the above
12 * copyright notice, this list of conditions and the following disclaimer
13 * in the documentation and/or other materials provided with the
14 * distribution.
15 *     * Neither the name of Google Inc. nor the names of its
16 * contributors may be used to endorse or promote products derived from
17 * this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32package org.jf.dexlib2.dexbacked.raw;
33
34import org.jf.dexlib2.dexbacked.DexBackedDexFile;
35import org.jf.dexlib2.dexbacked.DexReader;
36import org.jf.dexlib2.dexbacked.raw.util.DexAnnotator;
37import org.jf.dexlib2.util.AnnotatedBytes;
38
39import javax.annotation.Nonnull;
40import javax.annotation.Nullable;
41
42public class AnnotationItem {
43    public static final int VISIBILITY_OFFSET = 0;
44    public static final int ANNOTATION_OFFSET = 1;
45
46    @Nonnull
47    public static SectionAnnotator makeAnnotator(@Nonnull DexAnnotator annotator, @Nonnull MapItem mapItem) {
48        return new SectionAnnotator(annotator, mapItem) {
49            @Nonnull @Override public String getItemName() {
50                return "annotation_item";
51            }
52
53            @Override
54            protected void annotateItem(@Nonnull AnnotatedBytes out, int itemIndex, @Nullable String itemIdentity) {
55                int visibility = dexFile.readUbyte(out.getCursor());
56                out.annotate(1, "visibility = %d: %s", visibility, getAnnotationVisibility(visibility));
57
58                DexReader reader = dexFile.readerAt(out.getCursor());
59
60                EncodedValue.annotateEncodedAnnotation(out, reader);
61            }
62        };
63    }
64
65    private static String getAnnotationVisibility(int visibility) {
66        switch (visibility) {
67            case 0:
68                return "build";
69            case 1:
70                return "runtime";
71            case 2:
72                return "system";
73            default:
74                return "invalid visibility";
75        }
76    }
77
78    public static String getReferenceAnnotation(@Nonnull DexBackedDexFile dexFile, int annotationItemOffset) {
79        try {
80            DexReader reader = dexFile.readerAt(annotationItemOffset);
81            reader.readUbyte();
82            int typeIndex = reader.readSmallUleb128();
83            String annotationType = dexFile.getType(typeIndex);
84            return String.format("annotation_item[0x%x]: %s", annotationItemOffset, annotationType);
85        } catch (Exception ex) {
86            ex.printStackTrace(System.err);
87        }
88        return String.format("annotation_item[0x%x]", annotationItemOffset);
89    }
90}
91