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 EncodedField implements RawDexObject { 22 public int fieldIdxDiff; 23 public int accessFlags; 24 25 @Override read(DexRandomAccessFile file)26 public void read(DexRandomAccessFile file) throws IOException { 27 fieldIdxDiff = file.readUleb128(); 28 accessFlags = file.readUleb128(); 29 } 30 31 @Override write(DexRandomAccessFile file)32 public void write(DexRandomAccessFile file) throws IOException { 33 file.writeUleb128(fieldIdxDiff); 34 file.writeUleb128(accessFlags); 35 } 36 37 @Override incrementIndex(IndexUpdateKind kind, int insertedIdx)38 public void incrementIndex(IndexUpdateKind kind, int insertedIdx) { 39 // Do nothing. 40 // NB: our idx_diff is handled in ClassDataItem... 41 } 42 isVolatile()43 public boolean isVolatile() { 44 return ((accessFlags & Flag.ACC_VOLATILE.getValue()) != 0); 45 } 46 47 /** 48 * Set/unset the volatile flag for this EncodedField. 49 */ setVolatile(boolean turnOn)50 public void setVolatile(boolean turnOn) { 51 if (turnOn) { 52 accessFlags |= Flag.ACC_VOLATILE.getValue(); 53 } else { 54 accessFlags &= ~(Flag.ACC_VOLATILE.getValue()); 55 } 56 } 57 58 private static enum Flag { 59 ACC_PUBLIC(0x1), 60 ACC_PRIVATE(0x2), 61 ACC_PROTECTED(0x4), 62 ACC_STATIC(0x8), 63 ACC_FINAL(0x10), 64 ACC_VOLATILE(0x40), 65 ACC_TRANSIENT(0x80), 66 ACC_SYNTHETIC(0x1000), 67 ACC_ENUM(0x4000); 68 69 private int value; 70 Flag(int value)71 private Flag(int value) { 72 this.value = value; 73 } 74 getValue()75 public int getValue() { 76 return value; 77 } 78 } 79 } 80