1 /* 2 * Copyright 2013, Google LLC 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google LLC nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 package com.android.tools.smali.dexlib2.writer.builder; 32 33 import com.android.tools.smali.dexlib2.iface.Annotation; 34 import com.android.tools.smali.dexlib2.writer.AnnotationSection; 35 import com.android.tools.smali.dexlib2.writer.builder.BuilderEncodedValues.BuilderEncodedValue; 36 37 import javax.annotation.Nonnull; 38 import java.util.Collection; 39 import java.util.Map.Entry; 40 import java.util.concurrent.ConcurrentHashMap; 41 import java.util.concurrent.ConcurrentMap; 42 43 class BuilderAnnotationPool extends BaseBuilderPool implements AnnotationSection<BuilderStringReference, 44 BuilderTypeReference, BuilderAnnotation, BuilderAnnotationElement, BuilderEncodedValue> { 45 @Nonnull private final ConcurrentMap<Annotation, BuilderAnnotation> internedItems = 46 new ConcurrentHashMap<>(); 47 BuilderAnnotationPool(@onnull DexBuilder dexBuilder)48 public BuilderAnnotationPool(@Nonnull DexBuilder dexBuilder) { 49 super(dexBuilder); 50 } 51 internAnnotation(@onnull Annotation annotation)52 @Nonnull public BuilderAnnotation internAnnotation(@Nonnull Annotation annotation) { 53 BuilderAnnotation ret = internedItems.get(annotation); 54 if (ret != null) { 55 return ret; 56 } 57 58 BuilderAnnotation dexBuilderAnnotation = new BuilderAnnotation( 59 annotation.getVisibility(), 60 dexBuilder.typeSection.internType(annotation.getType()), 61 dexBuilder.internAnnotationElements(annotation.getElements())); 62 ret = internedItems.putIfAbsent(dexBuilderAnnotation, dexBuilderAnnotation); 63 return ret==null?dexBuilderAnnotation:ret; 64 } 65 getVisibility(@onnull BuilderAnnotation key)66 @Override public int getVisibility(@Nonnull BuilderAnnotation key) { 67 return key.visibility; 68 } 69 getType(@onnull BuilderAnnotation key)70 @Nonnull @Override public BuilderTypeReference getType(@Nonnull BuilderAnnotation key) { 71 return key.type; 72 } 73 74 @Nonnull @Override getElements(@onnull BuilderAnnotation key)75 public Collection<? extends BuilderAnnotationElement> getElements(@Nonnull BuilderAnnotation key) { 76 return key.elements; 77 } 78 79 @Nonnull @Override getElementName(@onnull BuilderAnnotationElement element)80 public BuilderStringReference getElementName(@Nonnull BuilderAnnotationElement element) { 81 return element.name; 82 } 83 84 @Nonnull @Override getElementValue(@onnull BuilderAnnotationElement element)85 public BuilderEncodedValue getElementValue(@Nonnull BuilderAnnotationElement element) { 86 return element.value; 87 } 88 getItemOffset(@onnull BuilderAnnotation key)89 @Override public int getItemOffset(@Nonnull BuilderAnnotation key) { 90 return key.offset; 91 } 92 getItems()93 @Nonnull @Override public Collection<? extends Entry<? extends BuilderAnnotation, Integer>> getItems() { 94 return new BuilderMapEntryCollection<BuilderAnnotation>(internedItems.values()) { 95 @Override protected int getValue(@Nonnull BuilderAnnotation key) { 96 return key.offset; 97 } 98 99 @Override protected int setValue(@Nonnull BuilderAnnotation key, int value) { 100 int prev = key.offset; 101 key.offset = value; 102 return prev; 103 } 104 }; 105 } 106 } 107