/**

 * Copyright (c) Meta Platforms, Inc. and affiliates.

 *

 * This source code is licensed under the MIT license found in the

 * LICENSE file in the root directory of this source tree.

 *

 * Flow type for SyntheticEvent class that includes private properties

 * @flow

 */

import type {Fiber} from 'react-reconciler/src/ReactInternalTypes';

import type {DOMEventName} from './DOMEventNames';

export type DispatchConfig = {

  dependencies?: Array<DOMEventName>,

  phasedRegistrationNames: {

    bubbled: null | string,

    captured: null | string,

  },

  registrationName?: string,

};

type BaseSyntheticEvent = {

  isPersistent: () => boolean,

  isPropagationStopped: () => boolean,

  _dispatchInstances?: null | Array<Fiber | null> | Fiber,

  _dispatchListeners?: null | Array<Function> | Function,

  _targetInst: Fiber,

  nativeEvent: Event,

  target?: mixed,

  relatedTarget?: mixed,

  type: string,

  currentTarget: null | EventTarget,

};

export type KnownReactSyntheticEvent = BaseSyntheticEvent & {

  _reactName: string,

};

export type UnknownReactSyntheticEvent = BaseSyntheticEvent & {

  _reactName: null,

};

export type ReactSyntheticEvent =

  | KnownReactSyntheticEvent

  | UnknownReactSyntheticEvent;