@mui/internal-docs-infra/ChunkProvider/PreloadContext.mjs

MUI Infra - internal documentation creation tools.

'use client';

import * as React from 'react';

/**
 * Memoize a preload by key: the first call with a given `key` runs `factory`
 * and caches its promise; later calls with the same key return that promise. So
 * many instances that need the same helper share one dynamic `import()` (and
 * one round of any work the factory does) instead of each kicking off their own.
 */

/**
 * Provides the cross-instance `PreloadFn`. `undefined` outside a
 * `PreloadProvider` - `usePreload` then falls back to calling the factory
 * directly (the browser's module cache still dedups identical `import()`s).
 */
export const PreloadContext = /*#__PURE__*/React.createContext(undefined);
if (process.env.NODE_ENV !== "production") PreloadContext.displayName = "PreloadContext";