Initial commit

frontend/node_modules/expo-modules-core/common/cpp/BridgelessJSCallInvoker.h

@@ -0,0 +1,41 @@
+// Copyright 2024-present 650 Industries. All rights reserved.
+
+#pragma once
+
+#ifdef __cplusplus
+
+#include <ReactCommon/CallInvoker.h>
+#include <ReactCommon/RuntimeExecutor.h>
+
+namespace expo {
+
+class BridgelessJSCallInvoker : public react::CallInvoker {
+public:
+  explicit BridgelessJSCallInvoker(react::RuntimeExecutor runtimeExecutor) : runtimeExecutor_(std::move(runtimeExecutor)) {}
+
+#if REACT_NATIVE_TARGET_VERSION >= 75
+  void invokeAsync(react::CallFunc &&func) noexcept override {
+    runtimeExecutor_([func = std::move(func)](jsi::Runtime &runtime) { func(runtime); });
+  }
+
+  void invokeSync(react::CallFunc &&func) override {
+    throw std::runtime_error("Synchronous native -> JS calls are currently not supported.");
+  }
+#else
+  void invokeAsync(std::function<void()> &&func) noexcept override {
+    runtimeExecutor_([func = std::move(func)](jsi::Runtime &runtime) { func(); });
+  }
+
+  void invokeSync(std::function<void()> &&func) override {
+    throw std::runtime_error("Synchronous native -> JS calls are currently not supported.");
+  }
+#endif
+
+private:
+  react::RuntimeExecutor runtimeExecutor_;
+
+}; // class BridgelessJSCallInvoker
+
+} // namespace expo
+
+#endif // __cplusplus

frontend/node_modules/expo-modules-core/common/cpp/EventEmitter.cpp

@@ -0,0 +1,299 @@
+#include "JSIUtils.h"
+#include "EventEmitter.h"
+#include "LazyObject.h"
+
+namespace expo::EventEmitter {
+
+#pragma mark - Listeners
+
+void Listeners::add(jsi::Runtime &runtime, std::string eventName, const jsi::Function &listener) noexcept {
+  listenersMap[eventName].emplace_back(runtime, listener);
+}
+
+void Listeners::remove(jsi::Runtime &runtime, std::string eventName, const jsi::Function &listener) noexcept {
+  if (!listenersMap.contains(eventName)) {
+    return;
+  }
+  jsi::Value listenerValue(runtime, listener);
+
+  listenersMap[eventName].remove_if([&](const jsi::Value &item) {
+    return jsi::Value::strictEquals(runtime, listenerValue, item);
+  });
+}
+
+void Listeners::removeAll(std::string eventName) noexcept {
+  if (listenersMap.contains(eventName)) {
+    listenersMap[eventName].clear();
+  }
+}
+
+void Listeners::clear() noexcept {
+  listenersMap.clear();
+}
+
+size_t Listeners::listenersCount(std::string eventName) noexcept {
+  if (!listenersMap.contains(eventName)) {
+    return 0;
+  }
+  return listenersMap[eventName].size();
+}
+
+void Listeners::call(jsi::Runtime &runtime, std::string eventName, const jsi::Object &thisObject, const jsi::Value *args, size_t count) noexcept {
+  if (!listenersMap.contains(eventName)) {
+    return;
+  }
+  ListenersList &listenersList = listenersMap[eventName];
+  size_t listSize = listenersList.size();
+
+  if (listSize == 0) {
+    // Nothing to call.
+    return;
+  }
+  if (listSize == 1) {
+    // The most common scenario – just call the only listener.
+    listenersList
+      .front()
+      .asObject(runtime)
+      .asFunction(runtime)
+      .callWithThis(runtime, thisObject, args, count);
+    return;
+  }
+  // When there are more than one listener, we copy the list to a vector as the list may be modified during the loop.
+  std::vector<jsi::Function> listenersVector;
+  listenersVector.reserve(listSize);
+
+  // Copy listeners to vector already as jsi::Function so we don't additionally copy jsi::Value
+  for (const jsi::Value &listener : listenersList) {
+    listenersVector.push_back(listener.asObject(runtime).asFunction(runtime));
+  }
+
+  // Call listeners from the vector. The list can be modified by the listeners but it will not affect this loop,
+  // i.e. newly added listeners will not be called and removed listeners will be called one last time.
+  // This is compliant with the EventEmitter in Node.js
+  for (const jsi::Function &listener : listenersVector) {
+    listener.callWithThis(runtime, thisObject, args, count);
+  }
+}
+
+#pragma mark - NativeState
+
+NativeState::NativeState() : jsi::NativeState() {}
+
+NativeState::~NativeState() {
+  listeners.clear();
+}
+
+NativeState::Shared NativeState::get(jsi::Runtime &runtime, const jsi::Object &object, bool createIfMissing) {
+  if (object.hasNativeState<NativeState>(runtime)) {
+    return object.getNativeState<NativeState>(runtime);
+  }
+  if (createIfMissing) {
+    NativeState::Shared state = std::make_shared<NativeState>();
+    object.setNativeState(runtime, state);
+    return state;
+  }
+  return nullptr;
+}
+
+#pragma mark - Utils
+
+void callObservingFunction(jsi::Runtime &runtime, const jsi::Object &object, const char* functionName, std::string eventName) {
+  jsi::Value fnValue = object.getProperty(runtime, functionName);
+
+  if (!fnValue.isObject()) {
+    // Skip it if there is no observing function.
+    return;
+  }
+
+  fnValue
+    .getObject(runtime)
+    .asFunction(runtime)
+    .callWithThis(runtime, object, {
+      jsi::Value(runtime, jsi::String::createFromUtf8(runtime, eventName))
+    });
+}
+
+void addListener(jsi::Runtime &runtime, const jsi::Object &emitter, const std::string &eventName, const jsi::Function &listener) {
+  if (NativeState::Shared state = NativeState::get(runtime, emitter, true)) {
+    state->listeners.add(runtime, eventName, listener);
+
+    if (state->listeners.listenersCount(eventName) == 1) {
+      callObservingFunction(runtime, emitter, "startObserving", eventName);
+    }
+  }
+}
+
+void removeListener(jsi::Runtime &runtime, const jsi::Object &emitter, const std::string &eventName, const jsi::Function &listener) {
+  if (NativeState::Shared state = NativeState::get(runtime, emitter, false)) {
+    size_t listenersCountBefore = state->listeners.listenersCount(eventName);
+
+    state->listeners.remove(runtime, eventName, listener);
+
+    if (listenersCountBefore >= 1 && state->listeners.listenersCount(eventName) == 0) {
+      callObservingFunction(runtime, emitter, "stopObserving", eventName);
+    }
+  }
+}
+
+void removeAllListeners(jsi::Runtime &runtime, const jsi::Object &emitter, const std::string &eventName) {
+  if (NativeState::Shared state = NativeState::get(runtime, emitter, false)) {
+    size_t listenersCountBefore = state->listeners.listenersCount(eventName);
+
+    state->listeners.removeAll(eventName);
+
+    if (listenersCountBefore >= 1) {
+      callObservingFunction(runtime, emitter, "stopObserving", eventName);
+    }
+  }
+}
+
+void emitEvent(jsi::Runtime &runtime, const jsi::Object &emitter, const std::string &eventName, const jsi::Value *args, size_t count) {
+  if (NativeState::Shared state = NativeState::get(runtime, emitter, false)) {
+    state->listeners.call(runtime, eventName, emitter, args, count);
+  }
+}
+
+size_t getListenerCount(jsi::Runtime &runtime, const jsi::Object &emitter, const std::string &eventName) {
+  if (NativeState::Shared state = NativeState::get(runtime, emitter, false)) {
+    return state->listeners.listenersCount(eventName);
+  }
+  return 0;
+}
+
+jsi::Value createEventSubscription(jsi::Runtime &runtime, const std::string &eventName, const jsi::Object &emitter, const jsi::Function &listener) {
+  jsi::Object subscription(runtime);
+  jsi::PropNameID removeProp = jsi::PropNameID::forAscii(runtime, "remove", 6);
+  std::shared_ptr<jsi::Value> emitterValue = std::make_shared<jsi::Value>(runtime, emitter);
+  std::shared_ptr<jsi::Value> listenerValue = std::make_shared<jsi::Value>(runtime, listener);
+
+  jsi::HostFunctionType removeSubscription = [eventName, emitterValue, listenerValue](jsi::Runtime &runtime, const jsi::Value &thisValue, const jsi::Value *args, size_t count) -> jsi::Value {
+    jsi::Object emitter = emitterValue->getObject(runtime);
+    jsi::Function listener = listenerValue->getObject(runtime).getFunction(runtime);
+
+    removeListener(runtime, emitter, eventName, listener);
+    return jsi::Value::undefined();
+  };
+
+  subscription.setProperty(runtime, removeProp, jsi::Function::createFromHostFunction(runtime, removeProp, 0, removeSubscription));
+
+  return jsi::Value(runtime, subscription);
+}
+
+#pragma mark - Public API
+
+void emitEvent(jsi::Runtime &runtime, jsi::Object &emitter, const std::string &eventName, const std::vector<jsi::Value> &arguments) {
+  emitEvent(runtime, emitter, eventName, arguments.data(), arguments.size());
+}
+
+jsi::Function getClass(jsi::Runtime &runtime) {
+  return common::getCoreObject(runtime)
+    .getPropertyAsFunction(runtime, "EventEmitter");
+}
+
+void installClass(jsi::Runtime &runtime) {
+  jsi::Function eventEmitterClass = common::createClass(runtime, "EventEmitter", [](jsi::Runtime &runtime, const jsi::Value &thisValue, const jsi::Value *args, size_t count) -> jsi::Value {
+    // To provide backwards compatibility with the old EventEmitter where the native module object was passed as an argument.
+    // We're checking if the argument is already an instance of the new emitter and if so, just return it without unnecessarily wrapping it.
+    if (count > 0) {
+      jsi::Object firstArg = args[0].asObject(runtime);
+      jsi::Function constructor = thisValue.asObject(runtime).getPropertyAsFunction(runtime, "constructor");
+
+      if (firstArg.instanceOf(runtime, constructor)) {
+        return jsi::Value(runtime, args[0]);
+      }
+    }
+    return jsi::Value(runtime, thisValue);
+  });
+  jsi::Object prototype = eventEmitterClass.getPropertyAsObject(runtime, "prototype");
+
+  jsi::HostFunctionType addListenerHost = [](jsi::Runtime &runtime, const jsi::Value &thisValue, const jsi::Value *args, size_t count) -> jsi::Value {
+    std::string eventName = args[0].asString(runtime).utf8(runtime);
+    jsi::Function listener = args[1].asObject(runtime).asFunction(runtime);
+    jsi::Object thisObject = thisValue.getObject(runtime);
+
+    // `this` might be an object that is representing a host object, in which case it's not possible to get the native state.
+    // For native modules we need to unwrap it to get the object used under the hood by `LazyObject` host object.
+    const jsi::Object &emitter = LazyObject::unwrapObjectIfNecessary(runtime, thisObject);
+
+    addListener(runtime, emitter, eventName, listener);
+    return createEventSubscription(runtime, eventName, emitter, listener);
+  };
+
+  jsi::HostFunctionType removeListenerHost = [](jsi::Runtime &runtime, const jsi::Value &thisValue, const jsi::Value *args, size_t count) -> jsi::Value {
+    std::string eventName = args[0].asString(runtime).utf8(runtime);
+    jsi::Function listener = args[1].asObject(runtime).asFunction(runtime);
+    jsi::Object thisObject = thisValue.getObject(runtime);
+
+    // Unwrap `this` object if it's a lazy object (e.g. native module).
+    const jsi::Object &emitter = LazyObject::unwrapObjectIfNecessary(runtime, thisObject);
+
+    removeListener(runtime, emitter, eventName, listener);
+    return jsi::Value::undefined();
+  };
+
+  jsi::HostFunctionType removeAllListenersHost = [](jsi::Runtime &runtime, const jsi::Value &thisValue, const jsi::Value *args, size_t count) -> jsi::Value {
+    std::string eventName = args[0].asString(runtime).utf8(runtime);
+    jsi::Object thisObject = thisValue.getObject(runtime);
+
+    // Unwrap `this` object if it's a lazy object (e.g. native module).
+    const jsi::Object &emitter = LazyObject::unwrapObjectIfNecessary(runtime, thisObject);
+
+    removeAllListeners(runtime, emitter, eventName);
+    return jsi::Value::undefined();
+  };
+
+  jsi::HostFunctionType emit = [](jsi::Runtime &runtime, const jsi::Value &thisValue, const jsi::Value *args, size_t count) -> jsi::Value {
+    std::string eventName = args[0].asString(runtime).utf8(runtime);
+    jsi::Object thisObject = thisValue.getObject(runtime);
+
+    // Unwrap `this` object if it's a lazy object (e.g. native module).
+    const jsi::Object &emitter = LazyObject::unwrapObjectIfNecessary(runtime, thisObject);
+
+    // Make a new pointer that skips the first argument which is the event name.
+    const jsi::Value *eventArgs = count > 1 ? &args[1] : nullptr;
+
+    emitEvent(runtime, emitter, eventName, eventArgs, count - 1);
+    return jsi::Value::undefined();
+  };
+
+  jsi::HostFunctionType listenerCountHost = [](jsi::Runtime &runtime, const jsi::Value &thisValue, const jsi::Value *args, size_t count) -> jsi::Value {
+    std::string eventName = args[0].asString(runtime).utf8(runtime);
+    jsi::Object thisObject = thisValue.getObject(runtime);
+
+    // Unwrap `this` object if it's a lazy object (e.g. native module).
+    const jsi::Object &emitter = LazyObject::unwrapObjectIfNecessary(runtime, thisObject);
+
+    return jsi::Value((int)getListenerCount(runtime, emitter, eventName));
+  };
+
+  // Added for compatibility with the old EventEmitter API.
+  jsi::HostFunctionType removeSubscriptionHost = [](jsi::Runtime &runtime, const jsi::Value &thisValue, const jsi::Value *args, size_t count) -> jsi::Value {
+    jsi::Object subscription = args[0].asObject(runtime);
+
+    subscription.getProperty(runtime, "remove")
+      .asObject(runtime)
+      .asFunction(runtime)
+      .callWithThis(runtime, subscription, {});
+
+    return jsi::Value::undefined();
+  };
+
+  jsi::PropNameID addListenerProp = jsi::PropNameID::forAscii(runtime, "addListener", 11);
+  jsi::PropNameID removeListenerProp = jsi::PropNameID::forAscii(runtime, "removeListener", 14);
+  jsi::PropNameID removeAllListenersProp = jsi::PropNameID::forAscii(runtime, "removeAllListeners", 18);
+  jsi::PropNameID emitProp = jsi::PropNameID::forAscii(runtime, "emit", 4);
+  jsi::PropNameID listenerCountProp = jsi::PropNameID::forAscii(runtime, "listenerCount", 13);
+  jsi::PropNameID removeSubscriptionProp = jsi::PropNameID::forAscii(runtime, "removeSubscription", 18);
+
+  prototype.setProperty(runtime, addListenerProp, jsi::Function::createFromHostFunction(runtime, addListenerProp, 2, addListenerHost));
+  prototype.setProperty(runtime, removeListenerProp, jsi::Function::createFromHostFunction(runtime, removeListenerProp, 2, removeListenerHost));
+  prototype.setProperty(runtime, removeAllListenersProp, jsi::Function::createFromHostFunction(runtime, removeAllListenersProp, 1, removeAllListenersHost));
+  prototype.setProperty(runtime, emitProp, jsi::Function::createFromHostFunction(runtime, emitProp, 2, emit));
+  prototype.setProperty(runtime, listenerCountProp, jsi::Function::createFromHostFunction(runtime, listenerCountProp, 1, listenerCountHost));
+  prototype.setProperty(runtime, removeSubscriptionProp, jsi::Function::createFromHostFunction(runtime, removeSubscriptionProp, 1, removeSubscriptionHost));
+
+  common::getCoreObject(runtime)
+    .setProperty(runtime, "EventEmitter", eventEmitterClass);
+}
+
+} // namespace expo::EventEmitter

frontend/node_modules/expo-modules-core/common/cpp/EventEmitter.h

@@ -0,0 +1,111 @@
+#pragma once
+
+#ifdef __cplusplus
+
+#include <unordered_map>
+#include <list>
+#include <jsi/jsi.h>
+
+namespace jsi = facebook::jsi;
+
+namespace expo::EventEmitter {
+
+/**
+ Class containing and managing listeners of the event emitter.
+ */
+class Listeners {
+private:
+  friend class NativeState;
+  friend void addListener(jsi::Runtime &runtime, const jsi::Object &emitter, const std::string &eventName, const jsi::Function &listener);
+  friend void removeListener(jsi::Runtime &runtime, const jsi::Object &emitter, const std::string &eventName, const jsi::Function &listener);
+  friend void removeAllListeners(jsi::Runtime &runtime, const jsi::Object &emitter, const std::string &eventName);
+  friend void emitEvent(jsi::Runtime &runtime, const jsi::Object &emitter, const std::string &eventName, const jsi::Value *args, size_t count);
+  friend size_t getListenerCount(jsi::Runtime &runtime, const jsi::Object &emitter, const std::string &eventName);
+
+  /**
+   Type of the list containing listeners for the specific event name.
+   */
+  using ListenersList = std::list<jsi::Value>;
+
+  /**
+   Type of the map where the keys are event names and the values are lists of listeners.
+   */
+  using ListenersMap = std::unordered_map<std::string, ListenersList>;
+
+  /**
+   Map with the events and listeners.
+   */
+  ListenersMap listenersMap;
+
+  /**
+   Adds a listener for the given event name.
+   */
+  void add(jsi::Runtime &runtime, std::string eventName, const jsi::Function &listener) noexcept;
+
+  /**
+   Removes the listener for the given event name.
+   */
+  void remove(jsi::Runtime &runtime, std::string eventName, const jsi::Function &listener) noexcept;
+
+  /**
+   Removes all listeners for the given event name.
+   */
+  void removeAll(std::string eventName) noexcept;
+
+  /**
+   Clears the entire map of events and listeners.
+   */
+  void clear() noexcept;
+
+  /**
+   Returns a number of listeners added for the given event name.
+   */
+  size_t listenersCount(std::string eventName) noexcept;
+
+  /**
+   Calls listeners for the given event name, with the given `this` object and payload arguments.
+   */
+  void call(jsi::Runtime &runtime, std::string eventName, const jsi::Object &thisObject, const jsi::Value *args, size_t count) noexcept;
+};
+
+/**
+ Class representing a native state of objects that emit events.
+ */
+class JSI_EXPORT NativeState : public jsi::NativeState {
+public:
+  using Shared = std::shared_ptr<NativeState>;
+
+  NativeState();
+  virtual ~NativeState();
+
+  /**
+   A structure containing event listeners.
+   */
+  Listeners listeners;
+
+  /**
+   Gets event emitter's native state from the given object.
+   If `createIfMissing` is set to `true`, the state will be automatically created.
+   */
+  static Shared get(jsi::Runtime &runtime, const jsi::Object &object, bool createIfMissing = false);
+};
+
+/**
+ Emits an event with the given name and arguments to the emitter object.
+ Does nothing if the given object is not an instance of the EventEmitter class.
+ */
+void emitEvent(jsi::Runtime &runtime, jsi::Object &emitter, const std::string &eventName, const std::vector<jsi::Value> &arguments);
+
+/**
+ Gets `expo.EventEmitter` class from the given runtime.
+ */
+jsi::Function getClass(jsi::Runtime &runtime);
+
+/**
+ Installs `expo.EventEmitter` class in the given runtime.
+ */
+void installClass(jsi::Runtime &runtime);
+
+} // namespace expo::EventEmitter
+
+#endif // __cplusplus

frontend/node_modules/expo-modules-core/common/cpp/JSIUtils.cpp

@@ -0,0 +1,146 @@
+// Copyright 2022-present 650 Industries. All rights reserved.
+
+#include <sstream>
+#include "JSIUtils.h"
+
+namespace expo::common {
+
+jsi::Function createClass(jsi::Runtime &runtime, const char *name, ClassConstructor constructor) {
+  std::string nativeConstructorKey("__native_constructor__");
+
+  // Create a string buffer of the source code to evaluate.
+  std::stringstream source;
+  source << "(function " << name << "(...args) { return this." << nativeConstructorKey << "(...args); })";
+  std::shared_ptr<jsi::StringBuffer> sourceBuffer = std::make_shared<jsi::StringBuffer>(source.str());
+
+  // Evaluate the code and obtain returned value (the constructor function).
+  jsi::Object klass = runtime.evaluateJavaScript(sourceBuffer, "").asObject(runtime);
+
+  // Set the native constructor in the prototype.
+  jsi::Object prototype = klass.getPropertyAsObject(runtime, "prototype");
+  jsi::PropNameID nativeConstructorPropId = jsi::PropNameID::forAscii(runtime, nativeConstructorKey);
+  jsi::Function nativeConstructor = jsi::Function::createFromHostFunction(
+    runtime,
+    nativeConstructorPropId,
+    // The paramCount is not obligatory to match, it only affects the `length` property of the function.
+    0,
+    [constructor](jsi::Runtime &runtime, const jsi::Value &thisValue, const jsi::Value *args, size_t count) -> jsi::Value {
+      if (constructor) {
+        return constructor(runtime, thisValue, args, count);
+      }
+      return jsi::Value(runtime, thisValue);
+    });
+
+  jsi::Object descriptor(runtime);
+  descriptor.setProperty(runtime, "value", jsi::Value(runtime, nativeConstructor));
+
+  defineProperty(runtime, &prototype, nativeConstructorKey.c_str(), std::move(descriptor));
+
+  return klass.asFunction(runtime);
+}
+
+jsi::Function createInheritingClass(jsi::Runtime &runtime, const char *className, jsi::Function &baseClass, ClassConstructor constructor) {
+  jsi::PropNameID prototypePropNameId = jsi::PropNameID::forAscii(runtime, "prototype", 9);
+  jsi::Object baseClassPrototype = baseClass
+    .getProperty(runtime, prototypePropNameId)
+    .asObject(runtime);
+
+  jsi::Function klass = createClass(runtime, className, constructor);
+  jsi::Object klassPrototype = klass.getProperty(runtime, prototypePropNameId).asObject(runtime);
+
+  klassPrototype.setProperty(runtime, "__proto__", baseClassPrototype);
+
+  return klass;
+}
+
+jsi::Object createObjectWithPrototype(jsi::Runtime &runtime, jsi::Object *prototype) {
+  // Get the "Object" class.
+  jsi::Object objectClass = runtime
+    .global()
+    .getPropertyAsObject(runtime, "Object");
+
+  // Call "Object.create(prototype)" to create an object with the given prototype without calling the constructor.
+  jsi::Object object = objectClass
+    .getPropertyAsFunction(runtime, "create")
+    .callWithThis(runtime, objectClass, {
+      jsi::Value(runtime, *prototype)
+    })
+    .asObject(runtime);
+
+  return object;
+}
+
+std::vector<jsi::PropNameID> jsiArrayToPropNameIdsVector(jsi::Runtime &runtime, const jsi::Array &array) {
+  size_t size = array.size(runtime);
+  std::vector<jsi::PropNameID> vector;
+
+  vector.reserve(size);
+
+  for (size_t i = 0; i < size; i++) {
+    jsi::String name = array.getValueAtIndex(runtime, i).getString(runtime);
+    vector.push_back(jsi::PropNameID::forString(runtime, name));
+  }
+  return vector;
+}
+
+void defineProperty(jsi::Runtime &runtime, jsi::Object *object, const char *name, const PropertyDescriptor descriptor) {
+  jsi::Object jsDescriptor(runtime);
+
+  // These three flags are all `false` by default, so set the property only when `true`.
+  if (descriptor.configurable) {
+    jsDescriptor.setProperty(runtime, "configurable", jsi::Value(true));
+  }
+  if (descriptor.enumerable) {
+    jsDescriptor.setProperty(runtime, "enumerable", jsi::Value(true));
+  }
+  if (descriptor.writable) {
+    jsDescriptor.setProperty(runtime, "writable", jsi::Value(true));
+  }
+
+  if (descriptor.get) {
+    jsi::PropNameID getPropName = jsi::PropNameID::forAscii(runtime, "get", 3);
+    jsi::Function get = jsi::Function::createFromHostFunction(
+      runtime,
+      getPropName,
+      0,
+      [getter = descriptor.get](jsi::Runtime &runtime, const jsi::Value &thisValue, const jsi::Value *args, size_t count) -> jsi::Value {
+        return getter(runtime, thisValue.asObject(runtime));
+      });
+
+    jsDescriptor.setProperty(runtime, getPropName, get);
+  }
+  if (descriptor.set) {
+    jsi::PropNameID setPropName = jsi::PropNameID::forAscii(runtime, "set", 3);
+    jsi::Function set = jsi::Function::createFromHostFunction(
+      runtime,
+      setPropName,
+      1,
+      [setter = descriptor.set](jsi::Runtime &runtime, const jsi::Value &thisValue, const jsi::Value *args, size_t count) -> jsi::Value {
+        setter(runtime, thisValue.asObject(runtime), jsi::Value(runtime, args[0]));
+        return jsi::Value::undefined();
+      });
+
+    jsDescriptor.setProperty(runtime, setPropName, set);
+  }
+  if (!descriptor.value.isUndefined()) {
+    jsi::PropNameID valuePropName = jsi::PropNameID::forAscii(runtime, "value", 5);
+    jsDescriptor.setProperty(runtime, valuePropName, descriptor.value);
+  }
+
+  defineProperty(runtime, object, name, std::move(jsDescriptor));
+}
+
+void defineProperty(jsi::Runtime &runtime, jsi::Object *object, const char *name, jsi::Object descriptor) {
+  jsi::Object global = runtime.global();
+  jsi::Object objectClass = global.getPropertyAsObject(runtime, "Object");
+  jsi::Function definePropertyFunction = objectClass.getPropertyAsFunction(runtime, "defineProperty");
+
+  // This call is basically the same as `Object.defineProperty(object, name, descriptor)` in JS
+  definePropertyFunction.callWithThis(runtime, objectClass, {
+    jsi::Value(runtime, *object),
+    jsi::String::createFromUtf8(runtime, name),
+    std::move(descriptor),
+  });
+}
+
+} // namespace expo::common

frontend/node_modules/expo-modules-core/common/cpp/JSIUtils.h

@@ -0,0 +1,76 @@
+// Copyright 2022-present 650 Industries. All rights reserved.
+
+#pragma once
+#ifdef __cplusplus
+
+#include <jsi/jsi.h>
+
+namespace jsi = facebook::jsi;
+
+namespace expo::common {
+
+#pragma mark - Helpers
+
+/**
+ Gets the core Expo object, i.e. `global.expo`.
+ */
+inline jsi::Object getCoreObject(jsi::Runtime &runtime) {
+  return runtime.global().getPropertyAsObject(runtime, "expo");
+}
+
+#pragma mark - Classes
+
+/**
+ Type of the native constructor of the JS classes.
+ */
+typedef std::function<jsi::Value(jsi::Runtime &runtime, const jsi::Value &thisValue, const jsi::Value *args, size_t count)> ClassConstructor;
+
+/**
+ Creates a class with the given name and native constructor.
+ */
+jsi::Function createClass(jsi::Runtime &runtime, const char *name, ClassConstructor constructor = nullptr);
+
+/**
+ Creates a class (function) that inherits from the provided base class.
+ */
+jsi::Function createInheritingClass(jsi::Runtime &runtime, const char *className, jsi::Function &baseClass, ClassConstructor constructor = nullptr);
+
+/**
+ Creates an object from the given prototype, without calling the constructor.
+ */
+jsi::Object createObjectWithPrototype(jsi::Runtime &runtime, jsi::Object *prototype);
+
+#pragma mark - Conversions
+
+/**
+ Converts `jsi::Array` to a vector with prop name ids (`std::vector<jsi::PropNameID>`).
+ */
+std::vector<jsi::PropNameID> jsiArrayToPropNameIdsVector(jsi::Runtime &runtime, const jsi::Array &array);
+
+#pragma mark - Properties
+
+/**
+ Represents a JS property descriptor used in the `Object.defineProperty` function.
+ */
+struct PropertyDescriptor {
+  const bool configurable = false;
+  const bool enumerable = false;
+  const bool writable = false;
+  const jsi::Value value = jsi::Value::undefined();
+  const std::function<jsi::Value(jsi::Runtime &runtime, jsi::Object thisObject)> get = 0;
+  const std::function<void(jsi::Runtime &runtime, jsi::Object thisObject, jsi::Value newValue)> set = 0;
+}; // PropertyDescriptor
+
+/**
+ Defines the property on the object with the provided descriptor options.
+ */
+void defineProperty(jsi::Runtime &runtime, jsi::Object *object, const char *name, const PropertyDescriptor descriptor);
+
+/**
+ Calls `Object.defineProperty(object, name, descriptor)`.
+ */
+void defineProperty(jsi::Runtime &runtime, jsi::Object *object, const char *name, jsi::Object descriptor);
+
+} // namespace expo::common
+
+#endif // __cplusplus

frontend/node_modules/expo-modules-core/common/cpp/LazyObject.cpp

@@ -0,0 +1,57 @@
+// Copyright 2022-present 650 Industries. All rights reserved.
+
+#include "JSIUtils.h"
+#include "LazyObject.h"
+
+namespace expo {
+
+LazyObject::LazyObject(const LazyObjectInitializer initializer) : initializer(initializer) {}
+
+LazyObject::~LazyObject() {
+  backedObject = nullptr;
+}
+
+jsi::Value LazyObject::get(jsi::Runtime &runtime, const jsi::PropNameID &name) {
+  if (!backedObject) {
+    if (name.utf8(runtime) == "$$typeof") {
+      // React Native asks for this property for some reason, we can just ignore it.
+      return jsi::Value::undefined();
+    }
+    initializeBackedObject(runtime);
+  }
+  return backedObject ? backedObject->getProperty(runtime, name) : jsi::Value::undefined();
+}
+
+void LazyObject::set(jsi::Runtime &runtime, const jsi::PropNameID &name, const jsi::Value &value) {
+  if (!backedObject) {
+    initializeBackedObject(runtime);
+  }
+  if (backedObject) {
+    backedObject->setProperty(runtime, name, value);
+  }
+}
+
+std::vector<jsi::PropNameID> LazyObject::getPropertyNames(jsi::Runtime &runtime) {
+  if (!backedObject) {
+    initializeBackedObject(runtime);
+  }
+  if (backedObject) {
+    jsi::Array propertyNames = backedObject->getPropertyNames(runtime);
+    return common::jsiArrayToPropNameIdsVector(runtime, propertyNames);
+  }
+  return {};
+}
+
+const jsi::Object &LazyObject::unwrapObjectIfNecessary(jsi::Runtime &runtime, const jsi::Object &object) {
+  if (object.isHostObject<LazyObject>(runtime)) {
+    LazyObject::Shared lazyObject = object.getHostObject<LazyObject>(runtime);
+
+    if (!lazyObject->backedObject) {
+      lazyObject->initializeBackedObject(runtime);
+    }
+    return *lazyObject->backedObject;
+  }
+  return object;
+}
+
+} // namespace expo

frontend/node_modules/expo-modules-core/common/cpp/LazyObject.h

@@ -0,0 +1,56 @@
+// Copyright 2022-present 650 Industries. All rights reserved.
+
+#pragma once
+
+#ifdef __cplusplus
+
+#include <jsi/jsi.h>
+
+namespace jsi = facebook::jsi;
+
+namespace expo {
+
+/**
+ A function that is responsible for initializing the backed object.
+ */
+typedef std::function<std::shared_ptr<jsi::Object>(jsi::Runtime &)> LazyObjectInitializer;
+
+/**
+ A host object that defers the creating of the raw object until any property is accessed for the first time.
+ */
+class JSI_EXPORT LazyObject : public jsi::HostObject {
+public:
+  using Shared = std::shared_ptr<LazyObject>;
+
+  LazyObject(const LazyObjectInitializer initializer);
+
+  virtual ~LazyObject();
+
+  jsi::Value get(jsi::Runtime &, const jsi::PropNameID &name) override;
+
+  void set(jsi::Runtime &, const jsi::PropNameID &name, const jsi::Value &value) override;
+
+  std::vector<jsi::PropNameID> getPropertyNames(jsi::Runtime &rt) override;
+
+  /**
+   If the given object is a host object of type `LazyObject`, it returns its backed object.
+   Otherwise, the given object is returned back.
+   */
+  static const jsi::Object &unwrapObjectIfNecessary(jsi::Runtime &runtime, const jsi::Object &object);
+
+private:
+  const LazyObjectInitializer initializer;
+  std::shared_ptr<jsi::Object> backedObject;
+
+  /**
+   Initializes the backed object. It shouldn't be invoked more than once, so first make sure that `backedObject` is a null pointer.
+   */
+  inline void initializeBackedObject(jsi::Runtime &runtime) {
+    backedObject = initializer(runtime);
+  }
+
+}; // class LazyObject
+
+} // namespace expo
+
+#endif // __cplusplus

frontend/node_modules/expo-modules-core/common/cpp/NativeModule.cpp

@@ -0,0 +1,16 @@
+// Copyright 2024-present 650 Industries. All rights reserved.
+
+#include "JSIUtils.h"
+#include "EventEmitter.h"
+#include "NativeModule.h"
+
+namespace expo::NativeModule {
+
+void installClass(jsi::Runtime &runtime) {
+  jsi::Function eventEmitterClass = EventEmitter::getClass(runtime);
+  jsi::Function nativeModuleClass = common::createInheritingClass(runtime, "NativeModule", eventEmitterClass);
+
+  common::getCoreObject(runtime).setProperty(runtime, "NativeModule", nativeModuleClass);
+}
+
+} // namespace expo::NativeModule

frontend/node_modules/expo-modules-core/common/cpp/NativeModule.h

@@ -0,0 +1,34 @@
+// Copyright 2024-present 650 Industries. All rights reserved.
+
+#pragma once
+
+#ifdef __cplusplus
+
+#include <jsi/jsi.h>
+
+namespace jsi = facebook::jsi;
+
+namespace expo::NativeModule {
+
+/**
+ Gets `expo.NativeModule` class in the given runtime.
+ */
+inline jsi::Function getClass(jsi::Runtime &runtime) {
+  return common::getCoreObject(runtime).getPropertyAsFunction(runtime, "NativeModule");
+}
+
+/**
+ Installs `expo.NativeModule` class in the given runtime.
+ */
+void installClass(jsi::Runtime &runtime);
+
+/**
+ Creates a new instance of the native module.
+ */
+inline jsi::Object createInstance(jsi::Runtime &runtime) {
+  return getClass(runtime).callAsConstructor(runtime).getObject(runtime);
+}
+
+} // namespace expo::NativeModule
+
+#endif // __cplusplus

frontend/node_modules/expo-modules-core/common/cpp/ObjectDeallocator.cpp

@@ -0,0 +1,19 @@
+// Copyright 2022-present 650 Industries. All rights reserved.
+
+#include "ObjectDeallocator.h"
+#include "JSIUtils.h"
+
+namespace expo::common {
+
+void setDeallocator(
+  jsi::Runtime &runtime,
+  const std::shared_ptr<jsi::Object> &jsThis,
+  ObjectDeallocator::Block deallocatorBlock
+) {
+  std::shared_ptr<ObjectDeallocator> objectDeallocator = std::make_shared<ObjectDeallocator>(
+    deallocatorBlock
+  );
+  jsThis->setNativeState(runtime, objectDeallocator);
+}
+
+} // namespace expo::common

frontend/node_modules/expo-modules-core/common/cpp/ObjectDeallocator.h

@@ -0,0 +1,36 @@
+// Copyright 2022-present 650 Industries. All rights reserved.
+
+#ifdef __cplusplus
+
+#import <jsi/jsi.h>
+
+namespace jsi = facebook::jsi;
+
+namespace expo::common {
+
+class JSI_EXPORT ObjectDeallocator : public jsi::NativeState {
+public:
+  typedef std::function<void()> Block;
+
+  ObjectDeallocator(const Block deallocator) : deallocator(deallocator) {};
+
+  virtual ~ObjectDeallocator() {
+    deallocator();
+  }
+
+  const Block deallocator;
+
+}; // class ObjectDeallocator
+
+/**
+ Sets the deallocator block on a given object, which is called when the object is being deallocated.
+ */
+void setDeallocator(
+  jsi::Runtime &runtime,
+  const std::shared_ptr<jsi::Object> &jsThis,
+  ObjectDeallocator::Block deallocatorBlock
+);
+
+} // namespace expo::common
+
+#endif

frontend/node_modules/expo-modules-core/common/cpp/SharedObject.cpp

@@ -0,0 +1,69 @@
+// Copyright 2024-present 650 Industries. All rights reserved.
+
+#include "SharedObject.h"
+#include "JSIUtils.h"
+
+namespace expo::SharedObject {
+
+#pragma mark - NativeState
+
+NativeState::NativeState(const ObjectId objectId, const ObjectReleaser releaser)
+: EventEmitter::NativeState(), objectId(objectId), releaser(releaser) {}
+
+NativeState::~NativeState() {
+  releaser(objectId);
+}
+
+#pragma mark - Utils
+
+void installBaseClass(jsi::Runtime &runtime, const ObjectReleaser releaser) {
+  jsi::Function baseClass = EventEmitter::getClass(runtime);
+  jsi::Function klass = expo::common::createInheritingClass(runtime, "SharedObject", baseClass);
+  jsi::Object prototype = klass.getPropertyAsObject(runtime, "prototype");
+
+  jsi::Function releaseFunction = jsi::Function::createFromHostFunction(
+    runtime,
+    jsi::PropNameID::forAscii(runtime, "release"),
+    1,
+    [releaser](jsi::Runtime &runtime, const jsi::Value &thisValue, const jsi::Value *args, size_t count) -> jsi::Value {
+      jsi::Object thisObject = thisValue.getObject(runtime);
+
+      if (thisObject.hasNativeState<NativeState>(runtime)) {
+        auto nativeState = thisObject.getNativeState<NativeState>(runtime);
+
+        releaser(nativeState->objectId);
+
+        // Should we reset the native state?
+        thisObject.setNativeState(runtime, nullptr);
+      }
+      return jsi::Value::undefined();
+    });
+
+  prototype.setProperty(runtime, "release", releaseFunction);
+
+  // This property should be deprecated, but it's still used when passing as a view prop.
+  defineProperty(runtime, &prototype, "__expo_shared_object_id__", common::PropertyDescriptor {
+    .get = [](jsi::Runtime &runtime, jsi::Object thisObject) {
+      if (thisObject.hasNativeState<NativeState>(runtime)) {
+        auto nativeState = thisObject.getNativeState<NativeState>(runtime);
+        return jsi::Value((int)nativeState->objectId);
+      }
+      return jsi::Value(0);
+    }
+  });
+
+  common::getCoreObject(runtime)
+    .setProperty(runtime, "SharedObject", klass);
+}
+
+jsi::Function getBaseClass(jsi::Runtime &runtime) {
+  return common::getCoreObject(runtime)
+    .getPropertyAsFunction(runtime, "SharedObject");
+}
+
+jsi::Function createClass(jsi::Runtime &runtime, const char *className, common::ClassConstructor constructor) {
+  jsi::Function baseSharedObjectClass = getBaseClass(runtime);
+  return common::createInheritingClass(runtime, className, baseSharedObjectClass, constructor);
+}
+
+} // namespace expo::SharedObject

frontend/node_modules/expo-modules-core/common/cpp/SharedObject.h

@@ -0,0 +1,59 @@
+// Copyright 2024-present 650 Industries. All rights reserved.
+
+#pragma once
+
+#ifdef __cplusplus
+
+#include <jsi/jsi.h>
+#include "JSIUtils.h"
+#include "ObjectDeallocator.h"
+#include "EventEmitter.h"
+
+namespace jsi = facebook::jsi;
+
+namespace expo::SharedObject {
+
+/**
+ Type of the shared object IDs.
+ */
+typedef long ObjectId;
+
+/**
+ Defines an object releaser block of the shared object.
+ */
+typedef std::function<void(const ObjectId)> ObjectReleaser;
+
+/**
+ Installs a base JavaScript class for all shared object with a shared release block.
+ */
+void installBaseClass(jsi::Runtime &runtime, const ObjectReleaser releaser);
+
+/**
+ Returns the base JavaScript class for all shared objects, i.e. `global.expo.SharedObject`.
+ */
+jsi::Function getBaseClass(jsi::Runtime &runtime);
+
+/**
+ Creates a concrete shared object class with the given name and constructor.
+ */
+jsi::Function createClass(jsi::Runtime &runtime, const char *className, common::ClassConstructor constructor);
+
+/**
+ Class representing a native state of the shared object.
+ */
+class JSI_EXPORT NativeState : public EventEmitter::NativeState {
+public:
+  const ObjectId objectId = 0;
+  const ObjectReleaser releaser;
+
+  /**
+   The default constructor that initializes a native state for the shared object with given ID.
+   */
+  NativeState(const ObjectId objectId, const ObjectReleaser releaser);
+
+  virtual ~NativeState();
+}; // class NativeState
+
+} // namespace expo::SharedObject
+
+#endif // __cplusplus

frontend/node_modules/expo-modules-core/common/cpp/TestingSyncJSCallInvoker.h

@@ -0,0 +1,44 @@
+// Copyright 2015-present 650 Industries. All rights reserved.
+
+#pragma once
+
+#ifdef __cplusplus
+
+#include <ReactCommon/CallInvoker.h>
+
+namespace expo {
+
+/**
+ * Dummy CallInvoker that invokes everything immediately.
+ * Used in the test environment to check the async flow.
+ */
+class TestingSyncJSCallInvoker : public facebook::react::CallInvoker {
+public:
+  TestingSyncJSCallInvoker(std::shared_ptr<jsi::Runtime> runtime) : runtime(runtime) {}
+
+#if REACT_NATIVE_TARGET_VERSION >= 75
+  void invokeAsync(react::CallFunc &&func) noexcept override {
+    func(*runtime);
+  }
+
+  void invokeSync(react::CallFunc &&func) override {
+    func(*runtime);
+  }
+#else
+  void invokeAsync(std::function<void()> &&func) noexcept override {
+    func();
+  }
+
+  void invokeSync(std::function<void()> &&func) override {
+    func();
+  }
+#endif
+
+  ~TestingSyncJSCallInvoker() override = default;
+
+  std::shared_ptr<jsi::Runtime> runtime;
+};
+
+} // namespace expo
+
+#endif // __cplusplus

frontend/node_modules/expo-modules-core/common/cpp/TypedArray.cpp

@@ -0,0 +1,70 @@
+// Copyright 2022-present 650 Industries. All rights reserved.
+
+#include <unordered_map>
+#include "TypedArray.h"
+
+namespace expo {
+
+std::unordered_map<std::string, TypedArrayKind> nameToKindMap = {
+    {"Int8Array", TypedArrayKind::Int8Array},
+    {"Int16Array", TypedArrayKind::Int16Array},
+    {"Int32Array", TypedArrayKind::Int32Array},
+    {"Uint8Array", TypedArrayKind::Uint8Array},
+    {"Uint8ClampedArray", TypedArrayKind::Uint8ClampedArray},
+    {"Uint16Array", TypedArrayKind::Uint16Array},
+    {"Uint32Array", TypedArrayKind::Uint32Array},
+    {"Float32Array", TypedArrayKind::Float32Array},
+    {"Float64Array", TypedArrayKind::Float64Array},
+    {"BigInt64Array", TypedArrayKind::BigInt64Array},
+    {"BigUint64Array", TypedArrayKind::BigUint64Array},
+};
+
+TypedArrayKind getTypedArrayKindForName(const std::string &name) {
+  return nameToKindMap.at(name);
+}
+
+TypedArray::TypedArray(jsi::Runtime &runtime, const jsi::Object &obj)
+    : jsi::Object(jsi::Value(runtime, obj).asObject(runtime)) {}
+
+TypedArrayKind TypedArray::getKind(jsi::Runtime &runtime) const {
+  auto constructorName = this->getPropertyAsObject(runtime, "constructor")
+                             .getProperty(runtime, "name")
+                             .asString(runtime)
+                             .utf8(runtime);
+  return getTypedArrayKindForName(constructorName);
+};
+
+size_t TypedArray::byteOffset(jsi::Runtime &runtime) const {
+  return getProperty(runtime, "byteOffset").asNumber();
+}
+
+size_t TypedArray::byteLength(jsi::Runtime &runtime) const {
+  return getProperty(runtime, "byteLength").asNumber();
+}
+
+jsi::ArrayBuffer TypedArray::getBuffer(jsi::Runtime &runtime) const {
+  auto buffer = getProperty(runtime, "buffer");
+  if (buffer.isObject() && buffer.asObject(runtime).isArrayBuffer(runtime)) {
+    return buffer.asObject(runtime).getArrayBuffer(runtime);
+  } else {
+    throw std::runtime_error("no ArrayBuffer attached");
+  }
+}
+
+void* TypedArray::getRawPointer(jsi::Runtime &runtime) {
+  return reinterpret_cast<void *>(getBuffer(runtime).data(runtime) + byteOffset(runtime));
+}
+
+bool isTypedArray(jsi::Runtime &runtime, const jsi::Object &jsObj) {
+  jsi::Object ArrayBuffer = runtime
+    .global()
+    .getPropertyAsObject(runtime, "ArrayBuffer");
+
+  jsi::Value isViewResult = ArrayBuffer
+    .getPropertyAsFunction(runtime, "isView")
+    .callWithThis(runtime, ArrayBuffer, {jsi::Value(runtime, jsObj)});
+
+  return isViewResult.getBool();
+}
+
+} // namespace expo

frontend/node_modules/expo-modules-core/common/cpp/TypedArray.h

@@ -0,0 +1,50 @@
+// Copyright 2022-present 650 Industries. All rights reserved.
+
+#ifdef __cplusplus
+
+#pragma once
+
+#include <jsi/jsi.h>
+
+namespace jsi = facebook::jsi;
+
+namespace expo {
+
+// Please keep it in-sync with the `EXTypedArrayKind` in Objective-C.
+// We need to maintain two implementations to expose this enum to Swift.
+enum class TypedArrayKind {
+  Int8Array = 1,
+  Int16Array = 2,
+  Int32Array = 3,
+  Uint8Array = 4,
+  Uint8ClampedArray = 5,
+  Uint16Array = 6,
+  Uint32Array = 7,
+  Float32Array = 8,
+  Float64Array = 9,
+  BigInt64Array = 10,
+  BigUint64Array = 11,
+};
+
+class TypedArray : public jsi::Object {
+ public:
+  TypedArray(jsi::Runtime &, const jsi::Object &);
+  TypedArray(TypedArray &&) = default;
+  TypedArray &operator=(TypedArray &&) = default;
+
+  TypedArrayKind getKind(jsi::Runtime &runtime) const;
+
+  size_t byteOffset(jsi::Runtime &runtime) const;
+
+  size_t byteLength(jsi::Runtime &runtime) const;
+
+  jsi::ArrayBuffer getBuffer(jsi::Runtime &runtime) const;
+
+  void* getRawPointer(jsi::Runtime &runtime);
+};
+
+bool isTypedArray(jsi::Runtime &runtime, const jsi::Object &jsObj);
+
+} // namespace expo
+
+#endif // __cplusplus

frontend/node_modules/expo-modules-core/common/cpp/fabric/ExpoViewComponentDescriptor.cpp

@@ -0,0 +1,19 @@
+// Copyright 2022-present 650 Industries. All rights reserved.
+
+#include "ExpoViewComponentDescriptor.h"
+
+namespace expo {
+
+ExpoViewComponentDescriptor::ExpoViewComponentDescriptor(facebook::react::ComponentDescriptorParameters const &parameters)
+  : facebook::react::ConcreteComponentDescriptor<ExpoViewShadowNode>(parameters) {
+}
+
+facebook::react::ComponentHandle ExpoViewComponentDescriptor::getComponentHandle() const {
+  return reinterpret_cast<facebook::react::ComponentHandle>(getComponentName());
+}
+
+facebook::react::ComponentName ExpoViewComponentDescriptor::getComponentName() const {
+  return std::static_pointer_cast<std::string const>(this->flavor_)->c_str();
+}
+
+} // namespace expo

frontend/node_modules/expo-modules-core/common/cpp/fabric/ExpoViewComponentDescriptor.h

@@ -0,0 +1,25 @@
+// Copyright 2022-present 650 Industries. All rights reserved.
+
+#pragma once
+
+#ifdef __cplusplus
+
+#include <react/renderer/core/ConcreteComponentDescriptor.h>
+
+#include "ExpoViewShadowNode.h"
+
+namespace expo {
+
+class ExpoViewComponentDescriptor : public facebook::react::ConcreteComponentDescriptor<ExpoViewShadowNode> {
+ public:
+  using Flavor = std::shared_ptr<std::string const>;
+
+  ExpoViewComponentDescriptor(facebook::react::ComponentDescriptorParameters const &parameters);
+
+  facebook::react::ComponentHandle getComponentHandle() const override;
+  facebook::react::ComponentName getComponentName() const override;
+};
+
+} // namespace expo
+
+#endif // __cplusplus

frontend/node_modules/expo-modules-core/common/cpp/fabric/ExpoViewEventEmitter.cpp

@@ -0,0 +1,13 @@
+// Copyright 2022-present 650 Industries. All rights reserved.
+
+#include "ExpoViewEventEmitter.h"
+
+using namespace facebook;
+
+namespace expo {
+
+void ExpoViewEventEmitter::dispatch(std::string eventName, react::ValueFactory payloadFactory) const {
+  dispatchEvent(eventName, payloadFactory);
+}
+
+} // namespace expo

frontend/node_modules/expo-modules-core/common/cpp/fabric/ExpoViewEventEmitter.h

@@ -0,0 +1,28 @@
+// Copyright 2022-present 650 Industries. All rights reserved.
+
+#pragma once
+
+#ifdef __cplusplus
+
+#include <react/renderer/components/view/ViewEventEmitter.h>
+#include <jsi/jsi.h>
+
+namespace react = facebook::react;
+
+namespace expo {
+
+class ExpoViewEventEmitter : public facebook::react::ViewEventEmitter {
+public:
+  using facebook::react::ViewEventEmitter::ViewEventEmitter;
+  using Shared = std::shared_ptr<const ExpoViewEventEmitter>;
+
+  /**
+   Dispatches an event to send from the native view to JavaScript.
+   This is basically exposing `dispatchEvent` from `facebook::react::EventEmitter` for public use.
+   */
+  void dispatch(std::string eventName, react::ValueFactory payloadFactory) const;
+};
+
+} // namespace expo
+
+#endif // __cplusplus

frontend/node_modules/expo-modules-core/common/cpp/fabric/ExpoViewProps.cpp

@@ -0,0 +1,34 @@
+// Copyright 2022-present 650 Industries. All rights reserved.
+
+#include "ExpoViewProps.h"
+#include <react/renderer/core/propsConversions.h>
+#include <react/renderer/components/view/ViewProps.h>
+
+namespace react = facebook::react;
+
+namespace expo {
+
+/**
+ Borrows the props map from the source props and applies the update given in the raw props.
+ */
+std::unordered_map<std::string, folly::dynamic> propsMapFromProps(const ExpoViewProps &sourceProps, const react::RawProps &rawProps) {
+  // Move the contents of the source props map – the source props instance will not be used anymore.
+  std::unordered_map<std::string, folly::dynamic> propsMap = std::move(sourceProps.propsMap);
+
+  // Iterate over values in the raw props object.
+  // Note that it contains only updated props.
+  rawProps.iterateOverValues([&propsMap](react::RawPropsPropNameHash hash, const char *name, const react::RawValue &value) {
+    std::string propName(name);
+    propsMap[propName] = (folly::dynamic)value;
+  });
+
+  return propsMap;
+}
+
+ExpoViewProps::ExpoViewProps(const react::PropsParserContext &context,
+                             const ExpoViewProps &sourceProps,
+                             const react::RawProps &rawProps)
+                             : react::ViewProps(context, sourceProps, rawProps),
+                               propsMap(propsMapFromProps(sourceProps, rawProps)) {}
+
+} // namespace expo

frontend/node_modules/expo-modules-core/common/cpp/fabric/ExpoViewProps.h

@@ -0,0 +1,30 @@
+// Copyright 2022-present 650 Industries. All rights reserved.
+
+#pragma once
+
+#ifdef __cplusplus
+
+#include <folly/dynamic.h>
+#include <react/renderer/components/view/ViewProps.h>
+#include <react/renderer/core/PropsParserContext.h>
+
+namespace expo {
+
+class ExpoViewProps final : public facebook::react::ViewProps {
+public:
+  ExpoViewProps() = default;
+  ExpoViewProps(const facebook::react::PropsParserContext &context,
+                const ExpoViewProps &sourceProps,
+                const facebook::react::RawProps &rawProps);
+
+#pragma mark - Props
+
+  /**
+   A map with props stored as `folly::dynamic` objects.
+   */
+  std::unordered_map<std::string, folly::dynamic> propsMap;
+};
+
+} // namespace expo
+
+#endif // __cplusplus

frontend/node_modules/expo-modules-core/common/cpp/fabric/ExpoViewShadowNode.cpp

@@ -0,0 +1,9 @@
+// Copyright 2022-present 650 Industries. All rights reserved.
+
+#include "ExpoViewShadowNode.h"
+
+namespace expo {
+
+  extern const char ExpoViewComponentName[] = "ExpoFabricView";
+
+} // namespace expo

frontend/node_modules/expo-modules-core/common/cpp/fabric/ExpoViewShadowNode.h

@@ -0,0 +1,24 @@
+// Copyright 2022-present 650 Industries. All rights reserved.
+
+#pragma once
+
+#ifdef __cplusplus
+
+#include <react/renderer/components/view/ConcreteViewShadowNode.h>
+
+#include "ExpoViewProps.h"
+#include "ExpoViewEventEmitter.h"
+#include "ExpoViewState.h"
+
+namespace expo {
+
+extern const char ExpoViewComponentName[];
+
+class ExpoViewShadowNode final : public facebook::react::ConcreteViewShadowNode<ExpoViewComponentName, ExpoViewProps, ExpoViewEventEmitter, ExpoViewState> {
+public:
+  using ConcreteViewShadowNode::ConcreteViewShadowNode;
+};
+
+} // namespace expo
+
+#endif // __cplusplus

frontend/node_modules/expo-modules-core/common/cpp/fabric/ExpoViewState.h

@@ -0,0 +1,35 @@
+// Copyright 2022-present 650 Industries. All rights reserved.
+
+#pragma once
+
+#ifdef __cplusplus
+
+#ifdef ANDROID
+#include <folly/dynamic.h>
+#include <react/renderer/mapbuffer/MapBuffer.h>
+#include <react/renderer/mapbuffer/MapBufferBuilder.h>
+#endif
+
+namespace expo {
+
+class ExpoViewState final {
+public:
+  ExpoViewState() {};
+
+#ifdef ANDROID
+  ExpoViewState(ExpoViewState const &previousState, folly::dynamic data) {};
+
+  folly::dynamic getDynamic() const {
+    return {};
+  };
+
+  facebook::react::MapBuffer getMapBuffer() const {
+    return facebook::react::MapBufferBuilder::EMPTY();
+  };
+#endif
+
+};
+
+} // namespace expo
+
+#endif // __cplusplus