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.rop.annotation.Annotations; 20 import com.android.dx.rop.annotation.AnnotationsList; 21 import com.android.dx.rop.cst.CstMethodRef; 22 import com.android.dx.util.AnnotatedOutput; 23 import com.android.dx.util.Hex; 24 import com.android.dx.util.ToHuman; 25 import java.util.ArrayList; 26 27 /** 28 * Association of a method and its parameter annotations. 29 */ 30 public final class ParameterAnnotationStruct 31 implements ToHuman, Comparable<ParameterAnnotationStruct> { 32 /** {@code non-null;} the method in question */ 33 private final CstMethodRef method; 34 35 /** {@code non-null;} the associated annotations list */ 36 private final AnnotationsList annotationsList; 37 38 /** {@code non-null;} the associated annotations list, as an item */ 39 private final UniformListItem<AnnotationSetRefItem> annotationsItem; 40 41 /** 42 * Constructs an instance. 43 * 44 * @param method {@code non-null;} the method in question 45 * @param annotationsList {@code non-null;} the associated annotations list 46 * @param dexFile {@code non-null;} dex output 47 */ ParameterAnnotationStruct(CstMethodRef method, AnnotationsList annotationsList, DexFile dexFile)48 public ParameterAnnotationStruct(CstMethodRef method, 49 AnnotationsList annotationsList, DexFile dexFile) { 50 if (method == null) { 51 throw new NullPointerException("method == null"); 52 } 53 54 if (annotationsList == null) { 55 throw new NullPointerException("annotationsList == null"); 56 } 57 58 this.method = method; 59 this.annotationsList = annotationsList; 60 61 /* 62 * Construct an item for the annotations list. TODO: This 63 * requires way too much copying; fix it. 64 */ 65 66 int size = annotationsList.size(); 67 ArrayList<AnnotationSetRefItem> arrayList = new 68 ArrayList<AnnotationSetRefItem>(size); 69 70 for (int i = 0; i < size; i++) { 71 Annotations annotations = annotationsList.get(i); 72 AnnotationSetItem item = new AnnotationSetItem(annotations, dexFile); 73 arrayList.add(new AnnotationSetRefItem(item)); 74 } 75 76 this.annotationsItem = new UniformListItem<AnnotationSetRefItem>( 77 ItemType.TYPE_ANNOTATION_SET_REF_LIST, arrayList); 78 } 79 80 /** {@inheritDoc} */ 81 @Override hashCode()82 public int hashCode() { 83 return method.hashCode(); 84 } 85 86 /** {@inheritDoc} */ 87 @Override equals(Object other)88 public boolean equals(Object other) { 89 if (! (other instanceof ParameterAnnotationStruct)) { 90 return false; 91 } 92 93 return method.equals(((ParameterAnnotationStruct) other).method); 94 } 95 96 /** {@inheritDoc} */ 97 @Override compareTo(ParameterAnnotationStruct other)98 public int compareTo(ParameterAnnotationStruct other) { 99 return method.compareTo(other.method); 100 } 101 102 /** {@inheritDoc} */ addContents(DexFile file)103 public void addContents(DexFile file) { 104 MethodIdsSection methodIds = file.getMethodIds(); 105 MixedItemSection wordData = file.getWordData(); 106 107 methodIds.intern(method); 108 wordData.add(annotationsItem); 109 } 110 111 /** {@inheritDoc} */ writeTo(DexFile file, AnnotatedOutput out)112 public void writeTo(DexFile file, AnnotatedOutput out) { 113 int methodIdx = file.getMethodIds().indexOf(method); 114 int annotationsOff = annotationsItem.getAbsoluteOffset(); 115 116 if (out.annotates()) { 117 out.annotate(0, " " + method.toHuman()); 118 out.annotate(4, " method_idx: " + Hex.u4(methodIdx)); 119 out.annotate(4, " annotations_off: " + 120 Hex.u4(annotationsOff)); 121 } 122 123 out.writeInt(methodIdx); 124 out.writeInt(annotationsOff); 125 } 126 127 /** {@inheritDoc} */ 128 @Override toHuman()129 public String toHuman() { 130 StringBuilder sb = new StringBuilder(); 131 132 sb.append(method.toHuman()); 133 sb.append(": "); 134 135 boolean first = true; 136 for (AnnotationSetRefItem item : annotationsItem.getItems()) { 137 if (first) { 138 first = false; 139 } else { 140 sb.append(", "); 141 } 142 sb.append(item.toHuman()); 143 } 144 145 return sb.toString(); 146 } 147 148 /** 149 * Gets the method this item is for. 150 * 151 * @return {@code non-null;} the method 152 */ getMethod()153 public CstMethodRef getMethod() { 154 return method; 155 } 156 157 /** 158 * Gets the associated annotations list. 159 * 160 * @return {@code non-null;} the annotations list 161 */ getAnnotationsList()162 public AnnotationsList getAnnotationsList() { 163 return annotationsList; 164 } 165 } 166