RN: Export EventEmitter in Public API

packages/react-native/Libraries/vendor/emitter/EventEmitter.js

@@ -126,7 +126,6 @@ export default class EventEmitter<
       // Copy `registrations` to take a snapshot when we invoke `emit`, in case
       // registrations are added or removed when listeners are invoked.
       for (const registration of Array.from(registrations)) {
-        // $FlowFixMe[incompatible-type]
         registration.listener.apply(registration.context, args);
       }
     }
@@ -159,7 +158,6 @@ export default class EventEmitter<
 function allocate<
   TEventToArgsMap: Readonly<Record<string, ReadonlyArray<UnsafeEventObject>>>,
   TEvent: $Keys<TEventToArgsMap>,
-  TEventArgs: TEventToArgsMap[TEvent],
 >(
   registry: Registry<TEventToArgsMap>,
   eventType: TEvent,

packages/react-native/ReactNativeApi.d.ts

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<9504863966549f8efbbe4e13d7f74eaf>>
+ * @generated SignedSource<<532b4c9c3a1d7ea9cbfce8c8e8ff3d87>>
  *
  * This file was generated by scripts/js-api/build-types/index.js.
  */
@@ -1865,7 +1865,7 @@ declare namespace CodegenTypes {
     UnsafeMixed,
     DefaultTypes,
     WithDefault,
-    EventEmitter,
+    EventEmitter_2 as EventEmitter,
   }
 }
 declare type ColorListenerCallback = (value: ColorValue) => unknown
@@ -2229,7 +2229,28 @@ declare type EventConfig<T> = {
   platformConfig?: PlatformConfig
   useNativeDriver: boolean
 }
-declare type EventEmitter<T> = (
+declare class EventEmitter<
+  TEventToArgsMap extends Readonly<
+    Record<string, ReadonlyArray<UnsafeEventObject>>
+  > = Readonly<Record<string, ReadonlyArray<UnsafeEventObject>>>,
+> implements IEventEmitter<TEventToArgsMap>
+{
+  addListener<TEvent extends keyof TEventToArgsMap>(
+    eventType: TEvent,
+    listener: (...args: TEventToArgsMap[TEvent]) => unknown,
+    context: unknown,
+  ): EventSubscription
+  constructor()
+  emit<TEvent extends keyof TEventToArgsMap>(
+    eventType: TEvent,
+    ...args: TEventToArgsMap[TEvent]
+  ): void
+  listenerCount<TEvent extends keyof TEventToArgsMap>(eventType: TEvent): number
+  removeAllListeners<TEvent extends keyof TEventToArgsMap>(
+    eventType?: null | TEvent | undefined,
+  ): void
+}
+declare type EventEmitter_2<T> = (
   handler: ($$PARAM_0$$: T) => Promise<void> | void,
 ) => EventSubscription
 declare type EventName = (() => string) | string
@@ -5988,15 +6009,15 @@ export {
   Button, // ef82aed4
   ButtonProps, // 3c081e75
   Clipboard, // 41addb89
-  CodegenTypes, // 030a94b8
+  CodegenTypes, // adbc477c
   ColorSchemeName, // 31a4350e
   ColorValue, // 98989a8f
   ComponentProvider, // b5c60ddd
   ComponentProviderInstrumentationHook, // 9f640048
   CursorValue, // 26522595
   DevMenu, // 21b8b7a9
   DevSettings, // e55b91dc
-  DeviceEventEmitter, // 650e6394
+  DeviceEventEmitter, // bdbdd014
   DeviceInfo, // 521bfb71
   DeviceInfoConstants, // 279e7858
   DimensionValue, // b163a381
@@ -6016,6 +6037,7 @@ export {
   EmitterSubscription, // de50c359
   EnterKeyHintTypeOptions, // 8314de78
   ErrorUtils, // 38fb909e
+  EventEmitter, // 2a2ea995
   EventSubscription, // b8d084aa
   ExtendedExceptionData, // 5a6ccf5a
   FilterFunction, // bf24c0e3
@@ -6029,6 +6051,7 @@ export {
   HostComponent, // 5e13ff5a
   HostInstance, // 489cbe7f
   I18nManager, // f9870e00
+  IEventEmitter, // fbef6131
   IOSKeyboardEvent, // e67bfe3a
   IgnorePattern, // ec6f6ece
   Image, // 957b3726
@@ -6074,7 +6097,7 @@ export {
   LayoutChangeEvent, // c674f902
   LayoutConformanceProps, // 055f03b8
   LayoutRectangle, // 6601b294
-  Linking, // b5645d2b
+  Linking, // 9a6a174d
   ListRenderItem, // b5353fd8
   ListRenderItemInfo, // e8595b03
   ListViewToken, // 833d3481
@@ -6090,11 +6113,11 @@ export {
   ModalPropsIOS, // 4fbcedf6
   ModeChangeEvent, // 16790307
   MouseEvent, // 53ede3db
-  NativeAppEventEmitter, // e1340a0a
+  NativeAppEventEmitter, // 08d4c47d
   NativeColorValue, // d2094c29
   NativeComponentRegistry, // 7fd99ba6
   NativeDialogManagerAndroid, // 5be8497e
-  NativeEventEmitter, // d72906cc
+  NativeEventEmitter, // 27f97c1a
   NativeEventSubscription, // de3942e7
   NativeMethods, // 03dc51c5
   NativeMethodsMixin, // 4b061b7e

packages/react-native/index.js

@@ -42,6 +42,9 @@ module.exports = {
     return require('./Libraries/Components/DrawerAndroid/DrawerLayoutAndroid')
       .default;
   },
+  get EventEmitter() {
+    return require('./Libraries/vendor/emitter/EventEmitter').default;
+  },
   get FlatList() {
     return require('./Libraries/Lists/FlatList').default;
   },

packages/react-native/index.js.flow

@@ -320,7 +320,6 @@ export * as NativeComponentRegistry from './Libraries/NativeComponent/NativeComp
 export {default as NativeDialogManagerAndroid} from './Libraries/NativeModules/specs/NativeDialogManagerAndroid';
 
 export type {
-  EventSubscription,
   EmitterSubscription,
   NativeEventSubscription,
 } from './Libraries/EventEmitter/NativeEventEmitter';
@@ -463,6 +462,12 @@ export type {
   PublicTextInstance,
 } from './Libraries/ReactPrivate/ReactNativePrivateInterface';
 
+export type {
+  EventSubscription,
+  IEventEmitter,
+} from './Libraries/vendor/emitter/EventEmitter';
+export {default as EventEmitter} from './Libraries/vendor/emitter/EventEmitter';
+
 export {
   default as unstable_VirtualView,
   VirtualViewMode,