56   struct Symbol {  struct
57     Symbol() = default;
59     explicit Symbol(const Maybe<ResourceId>& i, const std::shared_ptr<Attribute>& attr = {},
64     Symbol(const Symbol&) = default;  argument
65     Symbol(Symbol&&) = default;
66     Symbol& operator=(const Symbol&) = default;  argument
67     Symbol& operator=(Symbol&&) = default;  argument
91   const Symbol* FindByName(const ResourceName& name);  argument
95   const Symbol* FindById(const ResourceId& id);
101   const Symbol* FindByReference(const Reference& ref);
110   android::LruCache<ResourceName, std::shared_ptr<Symbol>> cache_;
111   android::LruCache<ResourceId, std::shared_ptr<Symbol>> id_cache_;
124   virtual std::unique_ptr<SymbolTable::Symbol> FindByName(
127   virtual std::unique_ptr<SymbolTable::Symbol> FindById(
139   virtual std::unique_ptr<SymbolTable::Symbol> FindByName(
142   virtual std::unique_ptr<SymbolTable::Symbol> FindById(
155   virtual std::unique_ptr<SymbolTable::Symbol> FindByName(
157   virtual std::unique_ptr<SymbolTable::Symbol> FindById(ResourceId id) = 0;
160   virtual std::unique_ptr<SymbolTable::Symbol> FindByReference(  in FindByReference()
178   std::unique_ptr<SymbolTable::Symbol> FindByName(
181   std::unique_ptr<SymbolTable::Symbol> FindById(ResourceId id) override {  in FindById()
199   std::unique_ptr<SymbolTable::Symbol> FindByName(
201   std::unique_ptr<SymbolTable::Symbol> FindById(ResourceId id) override;
202   std::unique_ptr<SymbolTable::Symbol> FindByReference(