facebook · j-piasecki · Jun 25, 2025
diff --git a/packages/react-native/Libraries/Components/Button.js b/packages/react-native/Libraries/Components/Button.js
@@ -281,10 +281,12 @@ export type ButtonProps = $ReadOnly<{
   ```
  */
 
-const Touchable: typeof TouchableNativeFeedback | typeof TouchableOpacity =
+const NativeTouchable:
+  | typeof TouchableNativeFeedback
+  | typeof TouchableOpacity =
   Platform.OS === 'android' ? TouchableNativeFeedback : TouchableOpacity;
 
-type ButtonRef = React.ElementRef<typeof Touchable>;
+type ButtonRef = React.ElementRef<typeof NativeTouchable>;
 
 const Button: component(
   ref?: React.RefSetter<ButtonRef>,
@@ -362,7 +364,7 @@ const Button: component(
       : importantForAccessibility;
 
   return (
-    <Touchable
+    <NativeTouchable
       accessible={accessible}
       accessibilityActions={accessibilityActions}
       onAccessibilityAction={onAccessibilityAction}
@@ -391,7 +393,7 @@ const Button: component(
           {formattedTitle}
         </Text>
       </View>
-    </Touchable>
+    </NativeTouchable>
   );
 };
 

diff --git a/packages/react-native/Libraries/EventEmitter/NativeEventEmitter.js b/packages/react-native/Libraries/EventEmitter/NativeEventEmitter.js
@@ -32,7 +32,7 @@ export type {EventSubscription, EmitterSubscription};
 export type NativeEventSubscription = EventSubscription;
 
 // $FlowFixMe[unclear-type] unclear type of events
-type UnsafeObject = Object;
+type UnsafeNativeEventObject = Object;
 
 /**
  * `NativeEventEmitter` is intended for use by Native Modules to emit events to
@@ -46,8 +46,8 @@ type UnsafeObject = Object;
  */
 export default class NativeEventEmitter<
   TEventToArgsMap: $ReadOnly<
-    Record<string, $ReadOnlyArray<UnsafeObject>>,
-  > = $ReadOnly<Record<string, $ReadOnlyArray<UnsafeObject>>>,
+    Record<string, $ReadOnlyArray<UnsafeNativeEventObject>>,
+  > = $ReadOnly<Record<string, $ReadOnlyArray<UnsafeNativeEventObject>>>,
 > implements IEventEmitter<TEventToArgsMap>
 {
   _nativeModule: ?NativeModule;

diff --git a/packages/react-native/Libraries/LayoutAnimation/LayoutAnimation.js b/packages/react-native/Libraries/LayoutAnimation/LayoutAnimation.js
@@ -45,7 +45,7 @@ type OnAnimationDidFailCallback = () => void;
 let isLayoutAnimationEnabled: boolean =
   ReactNativeFeatureFlags.isLayoutAnimationEnabled();
 
-function setEnabled(value: boolean) {
+function setLayoutAnimationEnabled(value: boolean) {
   isLayoutAnimationEnabled = isLayoutAnimationEnabled;
 }
 
@@ -115,7 +115,7 @@ function configureNext(
   }
 }
 
-function create(
+function createLayoutAnimation(
   duration: number,
   type?: LayoutAnimationType,
   property?: LayoutAnimationProperty,
@@ -129,12 +129,16 @@ function create(
 }
 
 const Presets = {
-  easeInEaseOut: (create(
+  easeInEaseOut: (createLayoutAnimation(
     300,
     'easeInEaseOut',
     'opacity',
   ): LayoutAnimationConfig),
-  linear: (create(500, 'linear', 'opacity'): LayoutAnimationConfig),
+  linear: (createLayoutAnimation(
+    500,
+    'linear',
+    'opacity',
+  ): LayoutAnimationConfig),
   spring: ({
     duration: 700,
     create: {
@@ -180,7 +184,7 @@ const LayoutAnimation = {
   /**
    * Helper for creating a config for `configureNext`.
    */
-  create,
+  create: createLayoutAnimation,
   Types: Object.freeze({
     spring: 'spring',
     linear: 'linear',
@@ -208,7 +212,7 @@ const LayoutAnimation = {
   spring: (configureNext.bind(null, Presets.spring): (
     onAnimationDidEnd?: OnAnimationDidEndCallback,
   ) => void),
-  setEnabled,
+  setEnabled: setLayoutAnimationEnabled,
 };
 
 export default LayoutAnimation;
diff --git a/packages/react-native/Libraries/Lists/FlatList.js b/packages/react-native/Libraries/Lists/FlatList.js
@@ -15,14 +15,13 @@ import type {
   ListRenderItemInfo,
   ViewabilityConfigCallbackPair,
   ViewToken,
+  VirtualizedListProps,
 } from '@react-native/virtualized-lists';
 
 import * as ReactNativeFeatureFlags from '../../src/private/featureflags/ReactNativeFeatureFlags';
 import {type ScrollResponderType} from '../Components/ScrollView/ScrollView';
 import View from '../Components/View/View';
-import VirtualizedLists, {
-  type VirtualizedListProps,
-} from '@react-native/virtualized-lists';
+import VirtualizedLists from '@react-native/virtualized-lists';
 import memoizeOne from 'memoize-one';
 import * as React from 'react';
 

diff --git a/packages/react-native/Libraries/PermissionsAndroid/PermissionsAndroid.js b/packages/react-native/Libraries/PermissionsAndroid/PermissionsAndroid.js
@@ -130,7 +130,7 @@ const PERMISSIONS = Object.freeze({
  *
  * See https://reactnative.dev/docs/permissionsandroid
  */
-class PermissionsAndroid {
+class PermissionsAndroidImpl {
   PERMISSIONS: PermissionsType = PERMISSIONS;
   RESULTS: $ReadOnly<{
     DENIED: 'denied',
@@ -297,5 +297,6 @@ class PermissionsAndroid {
   }
 }
 
-const PermissionsAndroidInstance: PermissionsAndroid = new PermissionsAndroid();
+const PermissionsAndroidInstance: PermissionsAndroidImpl =
+  new PermissionsAndroidImpl();
 export default PermissionsAndroidInstance;
diff --git a/packages/react-native/Libraries/ReactNative/AppRegistry.flow.js b/packages/react-native/Libraries/ReactNative/AppRegistry.flow.js
@@ -13,8 +13,8 @@ import type {RootTag} from '../Types/RootTagTypes';
 import type {IPerformanceLogger} from '../Utilities/createPerformanceLogger';
 import type {DisplayModeType} from './DisplayMode';
 
-type Task = (taskData: any) => Promise<void>;
-export type TaskProvider = () => Task;
+type HeadlessTask = (taskData: any) => Promise<void>;
+export type TaskProvider = () => HeadlessTask;
 
 export type ComponentProvider = () => React.ComponentType<any>;
 export type ComponentProviderInstrumentationHook = (

diff --git a/packages/react-native/Libraries/Utilities/NativeDeviceInfo.js b/packages/react-native/Libraries/Utilities/NativeDeviceInfo.js
@@ -9,6 +9,4 @@
  */
 
 export * from '../../src/private/specs_DEPRECATED/modules/NativeDeviceInfo';
-import NativeDeviceInfo from '../../src/private/specs_DEPRECATED/modules/NativeDeviceInfo';
-
-export default NativeDeviceInfo;
+export {default} from '../../src/private/specs_DEPRECATED/modules/NativeDeviceInfo';
diff --git a/packages/react-native/Libraries/__tests__/__snapshots__/public-api-test.js.snap b/packages/react-native/Libraries/__tests__/__snapshots__/public-api-test.js.snap
@@ -1539,10 +1539,10 @@ exports[`public API should not change unintentionally Libraries/Components/Butto
   accessibilityHint?: ?string,
   accessibilityLanguage?: ?Stringish,
 }>;
-declare const Touchable:
+declare const NativeTouchable:
   | typeof TouchableNativeFeedback
   | typeof TouchableOpacity;
-type ButtonRef = React.ElementRef<typeof Touchable>;
+type ButtonRef = React.ElementRef<typeof NativeTouchable>;
 declare const Button: component(
   ref?: React.RefSetter<ButtonRef>,
   ...props: ButtonProps
@@ -4179,11 +4179,11 @@ exports[`public API should not change unintentionally Libraries/EventEmitter/Nat
 type EmitterSubscription = EventSubscription;
 export type { EventSubscription, EmitterSubscription };
 export type NativeEventSubscription = EventSubscription;
-type UnsafeObject = Object;
+type UnsafeNativeEventObject = Object;
 declare export default class NativeEventEmitter<
   TEventToArgsMap: $ReadOnly<
-    Record<string, $ReadOnlyArray<UnsafeObject>>,
-  > = $ReadOnly<Record<string, $ReadOnlyArray<UnsafeObject>>>,
+    Record<string, $ReadOnlyArray<UnsafeNativeEventObject>>,
+  > = $ReadOnly<Record<string, $ReadOnlyArray<UnsafeNativeEventObject>>>,
 > implements IEventEmitter<TEventToArgsMap>
 {
   constructor(nativeModule?: ?NativeModule): void;
@@ -4859,13 +4859,13 @@ export type LayoutAnimationProperties = $ReadOnly<{
 }>;
 type OnAnimationDidEndCallback = () => void;
 type OnAnimationDidFailCallback = () => void;
-declare function setEnabled(value: boolean): void;
+declare function setLayoutAnimationEnabled(value: boolean): void;
 declare function configureNext(
   config: LayoutAnimationConfig,
   onAnimationDidEnd?: OnAnimationDidEndCallback,
   onAnimationDidFail?: OnAnimationDidFailCallback
 ): void;
-declare function create(
+declare function createLayoutAnimation(
   duration: number,
   type?: LayoutAnimationType,
   property?: LayoutAnimationProperty
@@ -4877,15 +4877,15 @@ declare const Presets: {
 };
 declare const LayoutAnimation: {
   configureNext: typeof configureNext,
-  create: typeof create,
+  create: typeof createLayoutAnimation,
   Types: LayoutAnimationTypes,
   Properties: LayoutAnimationProperties,
   checkConfig(...args: Array<mixed>): void,
   Presets: typeof Presets,
   easeInEaseOut: (onAnimationDidEnd?: OnAnimationDidEndCallback) => void,
   linear: (onAnimationDidEnd?: OnAnimationDidEndCallback) => void,
   spring: (onAnimationDidEnd?: OnAnimationDidEndCallback) => void,
-  setEnabled: typeof setEnabled,
+  setEnabled: typeof setLayoutAnimationEnabled,
 };
 declare export default typeof LayoutAnimation;
 "
@@ -6145,7 +6145,7 @@ type PermissionsType = $ReadOnly<{
 }>;
 export type PermissionStatus = \\"granted\\" | \\"denied\\" | \\"never_ask_again\\";
 export type Permission = $Values<PermissionsType>;
-declare class PermissionsAndroid {
+declare class PermissionsAndroidImpl {
   PERMISSIONS: PermissionsType;
   RESULTS: $ReadOnly<{
     DENIED: \\"denied\\",
@@ -6166,7 +6166,7 @@ declare class PermissionsAndroid {
     permissions: Array<Permission>
   ): Promise<{ [permission: Permission]: PermissionStatus, ... }>;
 }
-declare const PermissionsAndroidInstance: PermissionsAndroid;
+declare const PermissionsAndroidInstance: PermissionsAndroidImpl;
 declare export default typeof PermissionsAndroidInstance;
 "
 `;
@@ -6432,8 +6432,8 @@ declare export default typeof AppContainer;
 `;
 
 exports[`public API should not change unintentionally Libraries/ReactNative/AppRegistry.flow.js 1`] = `
-"type Task = (taskData: any) => Promise<void>;
-export type TaskProvider = () => Task;
+"type HeadlessTask = (taskData: any) => Promise<void>;
+export type TaskProvider = () => HeadlessTask;
 export type ComponentProvider = () => React.ComponentType<any>;
 export type ComponentProviderInstrumentationHook = (
   component_: ComponentProvider,
@@ -8363,7 +8363,7 @@ declare export default typeof NativeDevLoadingView;
 
 exports[`public API should not change unintentionally Libraries/Utilities/NativeDeviceInfo.js 1`] = `
 "export * from \\"../../src/private/specs_DEPRECATED/modules/NativeDeviceInfo\\";
-declare export default typeof NativeDeviceInfo;
+export { default } from \\"../../src/private/specs_DEPRECATED/modules/NativeDeviceInfo\\";
 "
 `;
 
@@ -8959,12 +8959,12 @@ declare export default ErrorUtils;
 `;
 
 exports[`public API should not change unintentionally Libraries/vendor/emitter/EventEmitter.js 1`] = `
-"type UnsafeObject = Object;
+"type UnsafeEventObject = Object;
 export interface EventSubscription {
   remove(): void;
 }
 export interface IEventEmitter<
-  TEventToArgsMap: $ReadOnly<Record<string, $ReadOnlyArray<UnsafeObject>>>,
+  TEventToArgsMap: $ReadOnly<Record<string, $ReadOnlyArray<UnsafeEventObject>>>,
 > {
   addListener<TEvent: $Keys<TEventToArgsMap>>(
     eventType: TEvent,
@@ -8980,8 +8980,8 @@ export interface IEventEmitter<
 }
 declare export default class EventEmitter<
   TEventToArgsMap: $ReadOnly<
-    Record<string, $ReadOnlyArray<UnsafeObject>>,
-  > = $ReadOnly<Record<string, $ReadOnlyArray<UnsafeObject>>>,
+    Record<string, $ReadOnlyArray<UnsafeEventObject>>,
+  > = $ReadOnly<Record<string, $ReadOnlyArray<UnsafeEventObject>>>,
 > implements IEventEmitter<TEventToArgsMap>
 {
   constructor(): void;

diff --git a/packages/react-native/Libraries/vendor/emitter/EventEmitter.js b/packages/react-native/Libraries/vendor/emitter/EventEmitter.js
@@ -9,14 +9,14 @@
  */
 
 // $FlowFixMe[unclear-type] unclear type of events
-type UnsafeObject = Object;
+type UnsafeEventObject = Object;
 
 export interface EventSubscription {
   remove(): void;
 }
 
 export interface IEventEmitter<
-  TEventToArgsMap: $ReadOnly<Record<string, $ReadOnlyArray<UnsafeObject>>>,
+  TEventToArgsMap: $ReadOnly<Record<string, $ReadOnlyArray<UnsafeEventObject>>>,
 > {
   addListener<TEvent: $Keys<TEventToArgsMap>>(
     eventType: TEvent,
@@ -41,7 +41,7 @@ interface Registration<TArgs> {
 }
 
 type Registry<
-  TEventToArgsMap: $ReadOnly<Record<string, $ReadOnlyArray<UnsafeObject>>>,
+  TEventToArgsMap: $ReadOnly<Record<string, $ReadOnlyArray<UnsafeEventObject>>>,
 > = {
   [K in keyof TEventToArgsMap]: Set<Registration<TEventToArgsMap[K]>>,
 };
@@ -68,8 +68,8 @@ type Registry<
  */
 export default class EventEmitter<
   TEventToArgsMap: $ReadOnly<
-    Record<string, $ReadOnlyArray<UnsafeObject>>,
-  > = $ReadOnly<Record<string, $ReadOnlyArray<UnsafeObject>>>,
+    Record<string, $ReadOnlyArray<UnsafeEventObject>>,
+  > = $ReadOnly<Record<string, $ReadOnlyArray<UnsafeEventObject>>>,
 > implements IEventEmitter<TEventToArgsMap>
 {
   #registry: Registry<TEventToArgsMap>;
@@ -157,7 +157,7 @@ export default class EventEmitter<
 }
 
 function allocate<
-  TEventToArgsMap: $ReadOnly<Record<string, $ReadOnlyArray<UnsafeObject>>>,
+  TEventToArgsMap: $ReadOnly<Record<string, $ReadOnlyArray<UnsafeEventObject>>>,
   TEvent: $Keys<TEventToArgsMap>,
   TEventArgs: TEventToArgsMap[TEvent],
 >(

diff --git a/packages/react-native/src/private/specs_DEPRECATED/components/SwitchNativeComponent.js b/packages/react-native/src/private/specs_DEPRECATED/components/SwitchNativeComponent.js
@@ -21,7 +21,7 @@ import codegenNativeCommands from '../../../../Libraries/Utilities/codegenNative
 import codegenNativeComponent from '../../../../Libraries/Utilities/codegenNativeComponent';
 import * as React from 'react';
 
-type SwitchChangeEvent = $ReadOnly<{
+type NativeSwitchChangeEvent = $ReadOnly<{
   value: boolean,
   target: Int32,
 }>;
@@ -42,7 +42,7 @@ type SwitchNativeProps = $ReadOnly<{
   trackColorForTrue?: ?ColorValue,
 
   // Events
-  onChange?: ?BubblingEventHandler<SwitchChangeEvent>,
+  onChange?: ?BubblingEventHandler<NativeSwitchChangeEvent>,
 }>;
 
 type ComponentType = HostComponent<SwitchNativeProps>;