1 /* 2 * Copyright (C) 2008 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 com.android.dx.dex.file; 18 19 import com.android.dx.util.AnnotatedOutput; 20 import com.android.dx.util.Hex; 21 22 /** 23 * Indirect reference to an {@link AnnotationSetItem}. 24 */ 25 public final class AnnotationSetRefItem extends OffsettedItem { 26 /** the required alignment for instances of this class */ 27 private static final int ALIGNMENT = 4; 28 29 /** write size of this class, in bytes */ 30 private static final int WRITE_SIZE = 4; 31 32 /** {@code non-null;} the annotation set to refer to */ 33 private AnnotationSetItem annotations; 34 35 /** 36 * Constructs an instance. 37 * 38 * @param annotations {@code non-null;} the annotation set to refer to 39 */ 40 public AnnotationSetRefItem(AnnotationSetItem annotations) { 41 super(ALIGNMENT, WRITE_SIZE); 42 43 if (annotations == null) { 44 throw new NullPointerException("annotations == null"); 45 } 46 47 this.annotations = annotations; 48 } 49 50 /** {@inheritDoc} */ 51 @Override 52 public ItemType itemType() { 53 return ItemType.TYPE_ANNOTATION_SET_REF_ITEM; 54 } 55 56 /** {@inheritDoc} */ 57 public void addContents(DexFile file) { 58 MixedItemSection wordData = file.getWordData(); 59 60 annotations = wordData.intern(annotations); 61 } 62 63 /** {@inheritDoc} */ 64 @Override 65 public String toHuman() { 66 return annotations.toHuman(); 67 } 68 69 /** {@inheritDoc} */ 70 @Override 71 protected void writeTo0(DexFile file, AnnotatedOutput out) { 72 int annotationsOff = annotations.getAbsoluteOffset(); 73 74 if (out.annotates()) { 75 out.annotate(4, " annotations_off: " + Hex.u4(annotationsOff)); 76 } 77 78 out.writeInt(annotationsOff); 79 } 80 } 81
