CxxNativeModule.h

/*
 * Copyright (c) Facebook, Inc. and its 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 <cxxreact/CxxModule.h>
#include <cxxreact/NativeModule.h>

#ifndef RN_EXPORT
#define RN_EXPORT __attribute__((visibility("default")))
#endif

namespace facebook {
namespace react {

class Instance;
class MessageQueueThread;

std::function<void(folly::dynamic)> makeCallback(
    std::weak_ptr<Instance> instance,
    const folly::dynamic &callbackId);

class RN_EXPORT CxxNativeModule : public NativeModule {
 public:
  CxxNativeModule(
      std::weak_ptr<Instance> instance,
      std::string name,
      xplat::module::CxxModule::Provider provider,
      std::shared_ptr<MessageQueueThread> messageQueueThread)
      : instance_(instance),
        name_(std::move(name)),
        provider_(provider),
        messageQueueThread_(messageQueueThread) {}

  std::string getName() override;
  std::vector<MethodDescriptor> getMethods() override;
  folly::dynamic getConstants() override;
  void invoke(unsigned int reactMethodId, folly::dynamic &&params, int callId)
      override;
  MethodCallResult callSerializableNativeHook(
      unsigned int hookId,
      folly::dynamic &&args) override;

 private:
  void lazyInit();

  std::weak_ptr<Instance> instance_;
  std::string name_;
  xplat::module::CxxModule::Provider provider_;
  std::shared_ptr<MessageQueueThread> messageQueueThread_;
  std::unique_ptr<xplat::module::CxxModule> module_;
  std::vector<xplat::module::CxxModule::Method> methods_;
};

} // namespace react
} // namespace facebook