1/*
2 * Copyright (C) 2014 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 dexfuzz.rawdex;
18
19import java.io.IOException;
20
21public class MapItem implements RawDexObject {
22  public static final int TYPE_HEADER_ITEM = 0x0;
23  public static final int TYPE_STRING_ID_ITEM = 0x1;
24  public static final int TYPE_TYPE_ID_ITEM = 0x2;
25  public static final int TYPE_PROTO_ID_ITEM = 0x3;
26  public static final int TYPE_FIELD_ID_ITEM = 0x4;
27  public static final int TYPE_METHOD_ID_ITEM = 0x5;
28  public static final int TYPE_CLASS_DEF_ITEM = 0x6;
29  public static final int TYPE_MAP_LIST = 0x1000;
30  public static final int TYPE_TYPE_LIST = 0x1001;
31  public static final int TYPE_ANNOTATION_SET_REF_LIST = 0x1002;
32  public static final int TYPE_ANNOTATION_SET_ITEM = 0x1003;
33  public static final int TYPE_CLASS_DATA_ITEM = 0x2000;
34  public static final int TYPE_CODE_ITEM = 0x2001;
35  public static final int TYPE_STRING_DATA_ITEM = 0x2002;
36  public static final int TYPE_DEBUG_INFO_ITEM = 0x2003;
37  public static final int TYPE_ANNOTATION_ITEM = 0x2004;
38  public static final int TYPE_ENCODED_ARRAY_ITEM = 0x2005;
39  public static final int TYPE_ANNOTATIONS_DIRECTORY_ITEM = 0x2006;
40
41  public short type;
42  public int size;
43  public Offset offset;
44
45  @Override
46  public void read(DexRandomAccessFile file) throws IOException {
47    type = file.readUShort();
48    file.readUShort(); // Unused padding.
49    size = file.readUInt();
50    if (type == TYPE_HEADER_ITEM) {
51      offset = file.getOffsetTracker().getNewHeaderOffset(file.readUInt());
52    } else {
53      offset = file.getOffsetTracker().getNewOffset(file.readUInt());
54    }
55  }
56
57  @Override
58  public void write(DexRandomAccessFile file) throws IOException {
59    file.writeUShort(type);
60    file.writeUShort((short) 0); // Unused padding.
61    file.writeUInt(size);
62    file.getOffsetTracker().tryToWriteOffset(offset, file, false /* ULEB128 */);
63  }
64
65  @Override
66  public void incrementIndex(IndexUpdateKind kind, int insertedIdx) {
67    // Do nothing.
68  }
69}
70