Files
react/scripts/flow/environment.js
Devon Govett 37906d4dfb [Flight Parcel] Pass import maps through client references (#32132)
Corresponding Parcel PR:
https://github.com/parcel-bundler/parcel/pull/10073

Parcel avoids [cascading cache
invalidation](https://philipwalton.com/articles/cascading-cache-invalidation/)
by injecting a bundle manifest containing a mapping of stable bundle ids
to hashed URLs. When using an HTML entry point, this is done (as of the
above PR) via a native import map. This means that if a bundle's hash
changes, only that bundle will be invalidated (plus the HTML itself
which typically has a short caching policy), not any other bundles that
reference it.

For RSCs, we cannot currently use native import maps because of client
side navigations, where a new HTML file is not requested. Eventually,
multiple `<script type="importmap">` elements will be supported
(https://github.com/whatwg/html/pull/10528) ([coming Chrome
133](https://chromestatus.com/feature/5121916248260608)), at which point
React could potentially inject them. In the meantime, I've added some
APIs to Parcel to polyfill this. With this change, an import map can be
sent along with a client reference, containing a mapping for any dynamic
imports and URL dependencies (e.g. images) that are referenced by the JS
bundles. On the client, the import map is extended with these new
mappings prior to executing the referenced bundles. This preserves the
caching advantages described above while supporting client navigations.
2025-01-27 15:39:56 -05:00

379 lines
9.7 KiB
JavaScript

/**
* 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
*/
/* eslint-disable */
declare const __PROFILE__: boolean;
declare const __EXPERIMENTAL__: boolean;
declare const __VARIANT__: boolean;
declare const __REACT_DEVTOOLS_GLOBAL_HOOK__: any; /*?{
inject: ?((stuff: Object) => void)
};*/
declare const globalThis: Object;
declare const queueMicrotask: (fn: Function) => void;
declare const reportError: (error: mixed) => void;
declare const AggregateError: Class<Error>;
declare const FinalizationRegistry: any;
declare module 'create-react-class' {
declare const exports: $FlowFixMe;
}
declare interface ConsoleTask {
run<T>(f: () => T): T;
}
// Flow hides the props of React$Element, this overrides it to unhide
// them for React internals.
// prettier-ignore
declare opaque type React$Element<
+ElementType: React$ElementType,
+P = React$ElementProps<ElementType>,
>: {
+type: ElementType,
+props: P,
+key: React$Key | null,
+ref: any,
};
declare type React$CustomJSXFactory = any;
declare const trustedTypes: {
isHTML: (value: any) => boolean,
isScript: (value: any) => boolean,
isScriptURL: (value: any) => boolean,
// TrustedURLs are deprecated and will be removed soon: https://github.com/WICG/trusted-types/pull/204
isURL?: (value: any) => boolean,
};
// ReactFeatureFlags www fork
declare module 'ReactFeatureFlags' {
declare module.exports: any;
}
// ReactFiberErrorDialog www fork
declare module 'ReactFiberErrorDialog' {
declare module.exports: {showErrorDialog: (error: mixed) => boolean, ...};
}
// EventListener www fork
declare module 'EventListener' {
declare module.exports: {
listen: (
target: EventTarget,
type: string,
callback: Function,
priority?: number,
options?: {passive: boolean, ...},
) => mixed,
capture: (target: EventTarget, type: string, callback: Function) => mixed,
captureWithPassiveFlag: (
target: EventTarget,
type: string,
callback: Function,
passive: boolean,
) => mixed,
bubbleWithPassiveFlag: (
target: EventTarget,
type: string,
callback: Function,
passive: boolean,
) => mixed,
...
};
}
declare function __webpack_chunk_load__(id: string): Promise<mixed>;
declare const __webpack_require__: ((id: string) => any) & {
u: string => string,
};
declare function __turbopack_load__(id: string): Promise<mixed>;
declare const __turbopack_require__: ((id: string) => any) & {
u: string => string,
};
declare var parcelRequire: {
(id: string): any,
load: (url: string) => Promise<mixed>,
extendImportMap: (importMap: {[string]: string}) => void,
meta: {
publicUrl: string,
},
};
declare module 'fs/promises' {
declare const access: (path: string, mode?: number) => Promise<void>;
declare const lstat: (
path: string,
options?: ?{bigint?: boolean},
) => Promise<mixed>;
declare const readdir: (
path: string,
options?:
| ?string
| {
encoding?: ?string,
withFileTypes?: ?boolean,
},
) => Promise<Buffer>;
declare const readFile: (
path: string,
options?:
| ?string
| {
encoding?: ?string,
},
) => Promise<Buffer>;
declare const readlink: (
path: string,
options?:
| ?string
| {
encoding?: ?string,
},
) => Promise<mixed>;
declare const realpath: (
path: string,
options?:
| ?string
| {
encoding?: ?string,
},
) => Promise<mixed>;
declare const stat: (
path: string,
options?: ?{bigint?: boolean},
) => Promise<mixed>;
}
declare module 'pg' {
declare const Pool: (options: mixed) => {
query: (query: string, values?: Array<mixed>) => void,
};
}
declare module 'util' {
declare function debuglog(section: string): (data: any, ...args: any) => void;
declare function format(format: string, ...placeholders: any): string;
declare function log(string: string): void;
declare function inspect(object: any, options?: util$InspectOptions): string;
declare function isArray(object: any): boolean;
declare function isRegExp(object: any): boolean;
declare function isDate(object: any): boolean;
declare function isError(object: any): boolean;
declare function inherits(
constructor: Function,
superConstructor: Function,
): void;
declare function deprecate(f: Function, string: string): Function;
declare function promisify(f: Function): Function;
declare function callbackify(f: Function): Function;
declare class TextDecoder {
constructor(
encoding?: string,
options?: {
fatal?: boolean,
ignoreBOM?: boolean,
...
},
): void;
decode(
input?: ArrayBuffer | DataView | $TypedArray,
options?: {stream?: boolean, ...},
): string;
encoding: string;
fatal: boolean;
ignoreBOM: boolean;
}
declare class TextEncoder {
constructor(encoding?: string): TextEncoder;
encode(buffer: string): Uint8Array;
encodeInto(
buffer: string,
dest: Uint8Array,
): {read: number, written: number};
encoding: string;
}
}
declare module 'busboy' {
import type {Writable, Readable} from 'stream';
declare interface Info {
encoding: string;
mimeType: string;
}
declare interface FileInfo extends Info {
filename: string;
}
declare interface FieldInfo extends Info {
nameTruncated: boolean;
valueTruncated: boolean;
}
declare interface BusboyEvents {
file: (name: string, stream: Readable, info: FileInfo) => void;
field: (name: string, value: string, info: FieldInfo) => void;
partsLimit: () => void;
filesLimit: () => void;
fieldsLimit: () => void;
error: (error: mixed) => void;
close: () => void;
}
declare interface Busboy extends Writable {
addListener<Event: $Keys<BusboyEvents>>(
event: Event,
listener: BusboyEvents[Event],
): Busboy;
addListener(
event: string | symbol,
listener: (...args: any[]) => void,
): Busboy;
on<Event: $Keys<BusboyEvents>>(
event: Event,
listener: BusboyEvents[Event],
): Busboy;
on(event: string | symbol, listener: (...args: any[]) => void): Busboy;
once<Event: $Keys<BusboyEvents>>(
event: Event,
listener: BusboyEvents[Event],
): Busboy;
once(event: string | symbol, listener: (...args: any[]) => void): Busboy;
removeListener<Event: $Keys<BusboyEvents>>(
event: Event,
listener: BusboyEvents[Event],
): Busboy;
removeListener(
event: string | symbol,
listener: (...args: any[]) => void,
): Busboy;
off<Event: $Keys<BusboyEvents>>(
event: Event,
listener: BusboyEvents[Event],
): Busboy;
off(event: string | symbol, listener: (...args: any[]) => void): Busboy;
prependListener<Event: $Keys<BusboyEvents>>(
event: Event,
listener: BusboyEvents[Event],
): Busboy;
prependListener(
event: string | symbol,
listener: (...args: any[]) => void,
): Busboy;
prependOnceListener<Event: $Keys<BusboyEvents>>(
event: Event,
listener: BusboyEvents[Event],
): Busboy;
prependOnceListener(
event: string | symbol,
listener: (...args: any[]) => void,
): Busboy;
}
}
declare module 'pg/lib/utils' {
declare module.exports: {
prepareValue(val: any): mixed,
};
}
// Node
declare module 'async_hooks' {
declare class AsyncLocalStorage<T> {
disable(): void;
getStore(): T | void;
run<R>(store: T, callback: (...args: any[]) => R, ...args: any[]): R;
enterWith(store: T): void;
}
declare interface AsyncResource {}
declare function executionAsyncId(): number;
declare function executionAsyncResource(): AsyncResource;
declare function triggerAsyncId(): number;
declare type HookCallbacks = {
init?: (
asyncId: number,
type: string,
triggerAsyncId: number,
resource: AsyncResource,
) => void,
before?: (asyncId: number) => void,
after?: (asyncId: number) => void,
promiseResolve?: (asyncId: number) => void,
destroy?: (asyncId: number) => void,
};
declare class AsyncHook {
enable(): this;
disable(): this;
}
declare function createHook(callbacks: HookCallbacks): AsyncHook;
}
// Edge
declare class AsyncLocalStorage<T> {
disable(): void;
getStore(): T | void;
run<R>(store: T, callback: (...args: any[]) => R, ...args: any[]): R;
enterWith(store: T): void;
}
declare const async_hooks: {
createHook(callbacks: any): any,
executionAsyncId(): number,
};
declare module 'node:worker_threads' {
declare class MessageChannel {
port1: MessagePort;
port2: MessagePort;
}
}
declare module 'jest-diff' {
declare type CompareKeys = ((a: string, b: string) => number) | void;
declare type DiffOptions = {
aAnnotation?: string,
aColor?: (arg: string) => string,
aIndicator?: string,
bAnnotation?: string,
bColor?: (arg: string) => string,
bIndicator?: string,
changeColor?: (arg: string) => string,
changeLineTrailingSpaceColor?: (arg: string) => string,
commonColor?: (arg: string) => string,
commonIndicator?: string,
commonLineTrailingSpaceColor?: (arg: string) => string,
contextLines?: number,
emptyFirstOrLastLinePlaceholder?: string,
expand?: boolean,
includeChangeCounts?: boolean,
omitAnnotationLines?: boolean,
patchColor?: (arg: string) => string,
compareKeys?: CompareKeys,
};
declare function diff(a: any, b: any, options?: DiffOptions): string;
}
declare const Bun: {
hash(
input: string | $TypedArray | DataView | ArrayBuffer | SharedArrayBuffer,
): number,
};