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ReactTypes.js
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ReactTypes.js
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/**
* 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
*/
export type ReactNode =
| React$Element<any>
| ReactPortal
| ReactText
| ReactFragment
| ReactProvider<any>
| ReactConsumer<any>;
export type ReactEmpty = null | void | boolean;
export type ReactFragment = ReactEmpty | Iterable<React$Node>;
export type ReactNodeList = ReactEmpty | React$Node;
export type ReactText = string | number;
export type ReactProvider<T> = {
$$typeof: symbol | number,
type: ReactProviderType<T>,
key: null | string,
ref: null,
props: {
value: T,
children?: ReactNodeList,
...
},
...
};
export type ReactProviderType<T> = {
$$typeof: symbol | number,
_context: ReactContext<T>,
...
};
export type ReactConsumer<T> = {
$$typeof: symbol | number,
type: ReactContext<T>,
key: null | string,
ref: null,
props: {
children: (value: T) => ReactNodeList,
...
},
...
};
export type ReactContext<T> = {
$$typeof: symbol | number,
Consumer: ReactContext<T>,
Provider: ReactProviderType<T>,
_currentValue: T,
_currentValue2: T,
_threadCount: number,
// DEV only
_currentRenderer?: Object | null,
_currentRenderer2?: Object | null,
// This value may be added by application code
// to improve DEV tooling display names
displayName?: string,
// only used by ServerContext
_defaultValue: T,
_globalName: string,
...
};
export type ServerContextJSONValue =
| string
| boolean
| number
| null
| $ReadOnlyArray<ServerContextJSONValue>
| {+[key: string]: ServerContextJSONValue};
export type ReactServerContext<T: any> = ReactContext<T>;
export type ReactPortal = {
$$typeof: symbol | number,
key: null | string,
containerInfo: any,
children: ReactNodeList,
// TODO: figure out the API for cross-renderer implementation.
implementation: any,
...
};
export type RefObject = {
current: any,
};
export type ReactScope = {
$$typeof: symbol | number,
};
export type ReactScopeQuery = (
type: string,
props: {[string]: mixed, ...},
instance: mixed,
) => boolean;
export type ReactScopeInstance = {
DO_NOT_USE_queryAllNodes(ReactScopeQuery): null | Array<Object>,
DO_NOT_USE_queryFirstNode(ReactScopeQuery): null | Object,
containsNode(Object): boolean,
getChildContextValues: <T>(context: ReactContext<T>) => Array<T>,
};
// The subset of a Thenable required by things thrown by Suspense.
// This doesn't require a value to be passed to either handler.
export interface Wakeable {
then(onFulfill: () => mixed, onReject: () => mixed): void | Wakeable;
}
// The subset of a Promise that React APIs rely on. This resolves a value.
// This doesn't require a return value neither from the handler nor the
// then function.
interface ThenableImpl<T> {
then(
onFulfill: (value: T) => mixed,
onReject: (error: mixed) => mixed,
): void | Wakeable;
}
interface UntrackedThenable<T> extends ThenableImpl<T> {
status?: void;
}
export interface PendingThenable<T> extends ThenableImpl<T> {
status: 'pending';
}
export interface FulfilledThenable<T> extends ThenableImpl<T> {
status: 'fulfilled';
value: T;
}
export interface RejectedThenable<T> extends ThenableImpl<T> {
status: 'rejected';
reason: mixed;
}
export type Thenable<T> =
| UntrackedThenable<T>
| PendingThenable<T>
| FulfilledThenable<T>
| RejectedThenable<T>;
export type OffscreenMode =
| 'hidden'
| 'unstable-defer-without-hiding'
| 'visible'
| 'manual';
export type StartTransitionOptions = {
name?: string,
};
export type Usable<T> = Thenable<T> | ReactContext<T>;
export type ReactCustomFormAction = {
name?: string,
action?: string,
encType?: string,
method?: string,
target?: string,
data?: null | FormData,
};