1/* 2 * Copyright 2012, 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.value; 33 34import org.jf.dexlib2.base.value.BaseArrayEncodedValue; 35import org.jf.dexlib2.dexbacked.DexBackedDexFile; 36import org.jf.dexlib2.dexbacked.DexReader; 37import org.jf.dexlib2.dexbacked.util.VariableSizeList; 38import org.jf.dexlib2.iface.value.ArrayEncodedValue; 39import org.jf.dexlib2.iface.value.EncodedValue; 40 41import javax.annotation.Nonnull; 42import java.util.List; 43 44public class DexBackedArrayEncodedValue extends BaseArrayEncodedValue implements ArrayEncodedValue { 45 @Nonnull public final DexBackedDexFile dexFile; 46 private final int elementCount; 47 private final int encodedArrayOffset; 48 49 public DexBackedArrayEncodedValue(@Nonnull DexReader reader) { 50 this.dexFile = reader.dexBuf; 51 this.elementCount = reader.readSmallUleb128(); 52 this.encodedArrayOffset = reader.getOffset(); 53 skipElementsFrom(reader, elementCount); 54 } 55 56 public static void skipFrom(@Nonnull DexReader reader) { 57 int elementCount = reader.readSmallUleb128(); 58 skipElementsFrom(reader, elementCount); 59 } 60 61 private static void skipElementsFrom(@Nonnull DexReader reader, int elementCount) { 62 for (int i=0; i<elementCount; i++) { 63 DexBackedEncodedValue.skipFrom(reader); 64 } 65 } 66 67 @Nonnull 68 @Override 69 public List<? extends EncodedValue> getValue() { 70 return new VariableSizeList<EncodedValue>(dexFile, encodedArrayOffset, elementCount) { 71 @Nonnull 72 @Override 73 protected EncodedValue readNextItem(@Nonnull DexReader dexReader, int index) { 74 return DexBackedEncodedValue.readFrom(dexReader); 75 } 76 }; 77 } 78} 79