react-native/ReactCommon/bridge/NativeModule.h

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// Copyright 2004-present Facebook. All Rights Reserved.
#pragma once
#include <string>
#include <vector>
#include <folly/dynamic.h>
#include "ExecutorToken.h"
namespace facebook {
namespace react {
struct MethodCallResult {
folly::dynamic result;
bool isUndefined;
};
struct MethodDescriptor {
std::string name;
// type is one of js MessageQueue.MethodTypes
std::string type;
MethodDescriptor(std::string n, std::string t)
: name(std::move(n))
, type(std::move(t)) {}
};
class NativeModule {
public:
virtual ~NativeModule() {}
virtual std::string getName() = 0;
virtual std::vector<MethodDescriptor> getMethods() = 0;
virtual folly::dynamic getConstants() = 0;
virtual bool supportsWebWorkers() = 0;
// TODO mhorowitz: do we need initialize()/onCatalystInstanceDestroy() in C++
// or only Java?
virtual void invoke(ExecutorToken token, unsigned int reactMethodId, folly::dynamic&& params) = 0;
virtual MethodCallResult callSerializableNativeHook(ExecutorToken token, unsigned int reactMethodId, folly::dynamic&& args) = 0;
};
}
}