SizeOf.java revision 579d7739c53a2707ad711a2d2cae46d7d782f061 
1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.dx.dex;
18
19public final class SizeOf {
20    private SizeOf() {}
21
22    public static final int UBYTE = 1;
23    public static final int USHORT = 2;
24    public static final int UINT = 4;
25
26    public static final int SIGNATURE = UBYTE * 20;
27
28    /**
29     * magic ubyte[8]
30     * checksum uint
31     * signature ubyte[20]
32     * file_size uint
33     * header_size uint
34     * endian_tag uint
35     * link_size uint
36     * link_off uint
37     * map_off uint
38     * string_ids_size uint
39     * string_ids_off uint
40     * type_ids_size uint
41     * type_ids_off uint
42     * proto_ids_size uint
43     * proto_ids_off uint
44     * field_ids_size uint
45     * field_ids_off uint
46     * method_ids_size uint
47     * method_ids_off uint
48     * class_defs_size uint
49     * class_defs_off uint
50     * data_size uint
51     * data_off uint
52     */
53    public static final int HEADER_ITEM = (8 * UBYTE) + UINT + SIGNATURE + (20 * UINT); // 0x70
54
55    /**
56     * string_data_off uint
57     */
58    public static final int STRING_ID_ITEM = UINT;
59
60    /**
61     * descriptor_idx uint
62     */
63    public static final int TYPE_ID_ITEM = UINT;
64
65    /**
66     * type_idx ushort
67     */
68    public static final int TYPE_ITEM = USHORT;
69
70    /**
71     * shorty_idx uint
72     * return_type_idx uint
73     * return_type_idx uint
74     */
75    public static final int PROTO_ID_ITEM = UINT + UINT + UINT;
76
77    /**
78     * class_idx ushort
79     * type_idx/proto_idx ushort
80     * name_idx uint
81     */
82    public static final int MEMBER_ID_ITEM = USHORT + USHORT + UINT;
83
84    /**
85     * class_idx uint
86     * access_flags uint
87     * superclass_idx uint
88     * interfaces_off uint
89     * source_file_idx uint
90     * annotations_off uint
91     * class_data_off uint
92     * static_values_off uint
93     */
94    public static final int CLASS_DEF_ITEM = 8 * UINT;
95
96    /**
97     * type ushort
98     * unused ushort
99     * size uint
100     * offset uint
101     */
102    public static final int MAP_ITEM = USHORT + USHORT + UINT + UINT;
103}
104