import * as React from 'react'; export { Fragment, cloneElement, createContext, createElement, forwardRef, isValidElement, useContext, useRef, useState } from 'react'; export { useSyncExternalStore } from 'use-sync-external-store/shim/index.js'; // React.useInsertionEffect is not available in React <18 // This hack fixes a transpilation issue on some apps const useBuiltinInsertionEffect = React["useInsertion" + "Effect"]; // Copied from: // https://github.com/facebook/react/blob/main/packages/shared/ExecutionEnvironment.js const canUseDOM = !!( typeof window !== "undefined" && typeof window.document !== "undefined" && typeof window.document.createElement !== "undefined" ); // Copied from: // https://github.com/reduxjs/react-redux/blob/master/src/utils/useIsomorphicLayoutEffect.ts // "React currently throws a warning when using useLayoutEffect on the server. // To get around it, we can conditionally useEffect on the server (no-op) and // useLayoutEffect in the browser." const useIsomorphicLayoutEffect = canUseDOM ? React.useLayoutEffect : React.useEffect; // useInsertionEffect is already a noop on the server. // See: https://github.com/facebook/react/blob/main/packages/react-server/src/ReactFizzHooks.js const useInsertionEffect = useBuiltinInsertionEffect || useIsomorphicLayoutEffect; // Userland polyfill while we wait for the forthcoming // https://github.com/reactjs/rfcs/blob/useevent/text/0000-useevent.md // Note: "A high-fidelity polyfill for useEvent is not possible because // there is no lifecycle or Hook in React that we can use to switch // .current at the right timing." // So we will have to make do with this "close enough" approach for now. const useEvent = (fn) => { const ref = React.useRef([fn, (...args) => ref[0](...args)]).current; // Per Dan Abramov: useInsertionEffect executes marginally closer to the // correct timing for ref synchronization than useLayoutEffect on React 18. // See: https://github.com/facebook/react/pull/25881#issuecomment-1356244360 useInsertionEffect(() => { ref[0] = fn; }); return ref[1]; }; export { useEvent, useInsertionEffect, useIsomorphicLayoutEffect };