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      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 
     17 package dexfuzz.rawdex;
     18 
     19 import java.io.IOException;
     20 
     21 public class ClassDefItem implements RawDexObject {
     22   public static int data_size = 0x20;
     23 
     24   public int classIdx;
     25   public int accessFlags;
     26   public int superclassIdx;
     27   public Offset interfacesOff;
     28   public int sourceFileIdx;
     29   public Offset annotationsOff;
     30   public Offset classDataOff;
     31   public Offset staticValuesOff;
     32 
     33   public static class MetaInfo {
     34     public ClassDataItem classDataItem;
     35   }
     36 
     37   public MetaInfo meta = new MetaInfo();
     38 
     39   @Override
     40   public void read(DexRandomAccessFile file) throws IOException {
     41     file.getOffsetTracker().getNewOffsettable(file, this);
     42     classIdx = file.readUInt();
     43     accessFlags = file.readUInt();
     44     superclassIdx = file.readUInt();
     45     interfacesOff = file.getOffsetTracker().getNewOffset(file.readUInt());
     46     sourceFileIdx = file.readUInt();
     47     annotationsOff = file.getOffsetTracker().getNewOffset(file.readUInt());
     48     classDataOff = file.getOffsetTracker().getNewOffset(file.readUInt());
     49     staticValuesOff = file.getOffsetTracker().getNewOffset(file.readUInt());
     50   }
     51 
     52   @Override
     53   public void write(DexRandomAccessFile file) throws IOException {
     54     file.getOffsetTracker().updatePositionOfNextOffsettable(file);
     55     file.writeUInt(classIdx);
     56     file.writeUInt(accessFlags);
     57     file.writeUInt(superclassIdx);
     58     file.getOffsetTracker().tryToWriteOffset(interfacesOff, file, false /* ULEB128 */);
     59     file.writeUInt(sourceFileIdx);
     60     file.getOffsetTracker().tryToWriteOffset(annotationsOff, file, false /* ULEB128 */);
     61     file.getOffsetTracker().tryToWriteOffset(classDataOff, file, false /* ULEB128 */);
     62     file.getOffsetTracker().tryToWriteOffset(staticValuesOff, file, false /* ULEB128 */);
     63   }
     64 
     65   @Override
     66   public void incrementIndex(IndexUpdateKind kind, int insertedIdx) {
     67     if (kind == IndexUpdateKind.TYPE_ID && classIdx >= insertedIdx) {
     68       classIdx++;
     69     }
     70     if (kind == IndexUpdateKind.TYPE_ID && superclassIdx >= insertedIdx) {
     71       superclassIdx++;
     72     }
     73     if (kind == IndexUpdateKind.STRING_ID && sourceFileIdx >= insertedIdx) {
     74       sourceFileIdx++;
     75     }
     76   }
     77 }
     78