1 /* 2 * Copyright (C) 2015 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 #ifndef AAPT_PROGUARD_RULES_H 18 #define AAPT_PROGUARD_RULES_H 19 20 #include <map> 21 #include <ostream> 22 #include <set> 23 #include <string> 24 25 #include "androidfw/StringPiece.h" 26 27 #include "Resource.h" 28 #include "ResourceTable.h" 29 #include "Source.h" 30 #include "ValueVisitor.h" 31 #include "io/Io.h" 32 #include "process/IResourceTableConsumer.h" 33 #include "xml/XmlDom.h" 34 35 namespace aapt { 36 namespace proguard { 37 38 struct UsageLocation { 39 ResourceName name; 40 Source source; 41 }; 42 43 class KeepSet { 44 public: 45 KeepSet() = default; 46 47 KeepSet(bool conditional_keep_rules) : conditional_keep_rules_(conditional_keep_rules) { 48 } 49 50 inline void AddManifestClass(const UsageLocation& file, const std::string& class_name) { 51 manifest_class_set_[class_name].insert(file); 52 } 53 54 inline void AddConditionalClass(const UsageLocation& file, const std::string& class_name) { 55 conditional_class_set_[class_name].insert(file); 56 } 57 58 inline void AddMethod(const UsageLocation& file, const std::string& method_name) { 59 method_set_[method_name].insert(file); 60 } 61 62 inline void AddReference(const UsageLocation& file, const ResourceName& resource_name) { 63 reference_set_[resource_name].insert(file); 64 } 65 66 private: 67 friend void WriteKeepSet(const KeepSet& keep_set, io::OutputStream* out); 68 69 friend bool CollectLocations(const UsageLocation& location, const KeepSet& keep_set, 70 std::set<UsageLocation>* locations); 71 72 bool conditional_keep_rules_ = false; 73 std::map<std::string, std::set<UsageLocation>> manifest_class_set_; 74 std::map<std::string, std::set<UsageLocation>> method_set_; 75 std::map<std::string, std::set<UsageLocation>> conditional_class_set_; 76 std::map<ResourceName, std::set<UsageLocation>> reference_set_; 77 }; 78 79 bool CollectProguardRulesForManifest(xml::XmlResource* res, KeepSet* keep_set, 80 bool main_dex_only = false); 81 82 bool CollectProguardRules(xml::XmlResource* res, KeepSet* keep_set); 83 84 bool CollectResourceReferences(IAaptContext* context, ResourceTable* table, KeepSet* keep_set); 85 86 void WriteKeepSet(const KeepSet& keep_set, io::OutputStream* out); 87 88 bool CollectLocations(const UsageLocation& location, const KeepSet& keep_set, 89 std::set<UsageLocation>* locations); 90 91 // 92 // UsageLocation implementation. 93 // 94 95 inline bool operator==(const UsageLocation& lhs, const UsageLocation& rhs) { 96 return lhs.name == rhs.name; 97 } 98 99 inline int operator<(const UsageLocation& lhs, const UsageLocation& rhs) { 100 return lhs.name.compare(rhs.name); 101 } 102 103 } // namespace proguard 104 } // namespace aapt 105 106 #endif // AAPT_PROGUARD_RULES_H 107
