/* * Copyright (c) Meta Platforms, Inc. and affiliates. * * This source code is licensed under the MIT license found in the * LICENSE file in the root directory of this source tree. */ #pragma once #include <memory> #include <unordered_set> #include <vector> #include <cxxreact/JSExecutor.h> #include <folly/Optional.h> #include <folly/dynamic.h> #ifndef RN_EXPORT #define RN_EXPORT __attribute__((visibility("default"))) #endif namespace facebook { namespace react { class NativeModule; struct ModuleConfig { size_t index; folly::dynamic config; }; class RN_EXPORT ModuleRegistry { public: // not implemented: // onBatchComplete: see // https://our.intern.facebook.com/intern/tasks/?t=5279396 getModule: only // used by views getAllModules: only used for cleanup; use RAII instead // notifyCatalystInstanceInitialized: this is really only used by view-related // code notifyCatalystInstanceDestroy: use RAII instead using ModuleNotFoundCallback = std::function<bool(const std::string &name)>; ModuleRegistry( std::vector<std::unique_ptr<NativeModule>> modules, ModuleNotFoundCallback callback = nullptr); void registerModules(std::vector<std::unique_ptr<NativeModule>> modules); std::vector<std::string> moduleNames(); folly::Optional<ModuleConfig> getConfig(const std::string &name); void callNativeMethod( unsigned int moduleId, unsigned int methodId, folly::dynamic &¶ms, int callId); MethodCallResult callSerializableNativeHook( unsigned int moduleId, unsigned int methodId, folly::dynamic &&args); std::string getModuleName(unsigned int moduleId); std::string getModuleSyncMethodName( unsigned int moduleId, unsigned int methodName); private: // This is always populated std::vector<std::unique_ptr<NativeModule>> modules_; // This is used to extend the population of modulesByName_ if registerModules // is called after moduleNames void updateModuleNamesFromIndex(size_t size); // This is only populated if moduleNames() is called. Values are indices into // modules_. std::unordered_map<std::string, size_t> modulesByName_; // This is populated with modules that are requested via getConfig but are // unknown. An error will be thrown if they are subsequently added to the // registry. std::unordered_set<std::string> unknownModules_; // Function will be called if a module was requested but was not found. // If the function returns true, ModuleRegistry will try to find the module // again (assuming it's registered) If the functon returns false, // ModuleRegistry will not try to find the module and return nullptr instead. ModuleNotFoundCallback moduleNotFoundCallback_; }; } // namespace react } // namespace facebook