ClassDefItem.java revision ff32d5cc147d4777b19e19692b3b196ddc460b51 
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 com.google.common.base.Joiner;
35import org.jf.dexlib2.AccessFlags;
36import org.jf.dexlib2.dexbacked.DexBackedDexFile;
37import org.jf.dexlib2.util.AnnotatedBytes;
38
39import javax.annotation.Nonnull;
40
41public class ClassDefItem {
42    public static final int ITEM_SIZE = 32;
43
44    public static final int CLASS_OFFSET = 0;
45    public static final int ACCESS_FLAGS_OFFSET = 4;
46    public static final int SUPERCLASS_OFFSET = 8;
47    public static final int INTERFACES_OFFSET = 12;
48    public static final int SOURCE_FILE_OFFSET = 16;
49    public static final int ANNOTATIONS_OFFSET = 20;
50    public static final int CLASS_DATA_OFFSET = 24;
51    public static final int STATIC_VALUES_OFFSET = 28;
52
53    @Nonnull
54    public static SectionAnnotator getAnnotator() {
55        return new SectionAnnotator() {
56            @Nonnull @Override public String getItemName() {
57                return "class_def_item";
58            }
59
60            @Override
61            protected void annotateItem(@Nonnull AnnotatedBytes out, @Nonnull DexBackedDexFile dexFile, int itemIndex) {
62                int classIndex = dexFile.readSmallUint(out.getCursor());
63                out.annotate(4, "class_idx = %s", TypeIdItem.getReferenceAnnotation(dexFile, classIndex));
64
65                int accessFlags = dexFile.readInt(out.getCursor());
66                out.annotate(4, "access_flags = 0x%x: %s", accessFlags,
67                        Joiner.on('|').join(AccessFlags.getAccessFlagsForClass(accessFlags)));
68
69                int superclassIndex = dexFile.readSmallUint(out.getCursor());
70                out.annotate(4, "superclass_idx = %s", TypeIdItem.getReferenceAnnotation(dexFile, superclassIndex));
71
72                int interfacesOffset = dexFile.readSmallUint(out.getCursor());
73                out.annotate(4, "interfaces_off = %s", TypeListItem.getReferenceAnnotation(dexFile, interfacesOffset));
74
75                int sourceFileIdx = dexFile.readOptionalUint(out.getCursor());
76                if (sourceFileIdx == -1) {
77                    out.annotate(4, "source_file_idx = -1");
78                } else {
79                    out.annotate(4, "source_file_idx = %s", StringIdItem.getReferenceAnnotation(dexFile,
80                            sourceFileIdx));
81                }
82
83                int annotationsOffset = dexFile.readSmallUint(out.getCursor());
84                if (annotationsOffset == 0) {
85                    out.annotate(4, "annotations_off = 0");
86                } else {
87                    out.annotate(4, "annotations_off = annotations_directory_item[0x%x]", annotationsOffset);
88                }
89
90                int classDataOffset = dexFile.readSmallUint(out.getCursor());
91                if (classDataOffset == 0) {
92                    out.annotate(4, "class_data_off = 0");
93                } else {
94                    out.annotate(4, "class_data_off = class_data_item[0x%x]", classDataOffset);
95                }
96
97                int staticValuesOffset = dexFile.readSmallUint(out.getCursor());
98                if (staticValuesOffset == 0) {
99                    out.annotate(4, "static_values_off = 0");
100                } else {
101                    out.annotate(4, "static_values_off = encoded_array_item[0x%x]", staticValuesOffset);
102                }
103            }
104        };
105    }
106}
107