Fix demo

compat/src/hooks.js

@@ -0,0 +1,70 @@
+import { useState, useLayoutEffect, useEffect } from 'preact/hooks';
+import { is } from './util';
+
+/**
+ * This is taken from https://github.com/facebook/react/blob/main/packages/use-sync-external-store/src/useSyncExternalStoreShimClient.js#L84
+ * on a high level this cuts out the warnings, ... and attempts a smaller implementation
+ * @typedef {{ _value: any; _getSnapshot: () => any }} Store
+ */
+export function useSyncExternalStore(subscribe, getSnapshot) {
+	const value = getSnapshot();
+
+	/**
+	 * @typedef {{ _instance: Store }} StoreRef
+	 * @type {[StoreRef, (store: StoreRef) => void]}
+	 */
+	const [{ _instance }, forceUpdate] = useState({
+		_instance: { _value: value, _getSnapshot: getSnapshot }
+	});
+
+	useLayoutEffect(() => {
+		_instance._value = value;
+		_instance._getSnapshot = getSnapshot;
+
+		if (didSnapshotChange(_instance)) {
+			forceUpdate({ _instance });
+		}
+	}, [subscribe, value, getSnapshot]);
+
+	useEffect(() => {
+		if (didSnapshotChange(_instance)) {
+			forceUpdate({ _instance });
+		}
+
+		return subscribe(() => {
+			if (didSnapshotChange(_instance)) {
+				forceUpdate({ _instance });
+			}
+		});
+	}, [subscribe]);
+
+	return value;
+}
+
+/** @type {(inst: Store) => boolean} */
+function didSnapshotChange(inst) {
+	const latestGetSnapshot = inst._getSnapshot;
+	const prevValue = inst._value;
+	try {
+		const nextValue = latestGetSnapshot();
+		return !is(prevValue, nextValue);
+	} catch (error) {
+		return true;
+	}
+}
+
+export function startTransition(cb) {
+	cb();
+}
+
+export function useDeferredValue(val) {
+	return val;
+}
+
+export function useTransition() {
+	return [false, startTransition];
+}
+
+// TODO: in theory this should be done after a VNode is diffed as we want to insert
+// styles/... before it attaches
+export const useInsertionEffect = useLayoutEffect;

compat/src/index.js

@@ -20,14 +20,20 @@ import {
 	useContext,
 	useDebugValue
 } from 'preact/hooks';
+import {
+	useInsertionEffect,
+	startTransition,
+	useDeferredValue,
+	useSyncExternalStore,
+	useTransition
+} from './hooks';
 import { PureComponent } from './PureComponent';
 import { memo } from './memo';
 import { forwardRef } from './forwardRef';
 import { Children } from './Children';
 import { Suspense, lazy } from './suspense';
 import { SuspenseList } from './suspense-list';
 import { createPortal } from './portals';
-import { is } from './util';
 import {
 	hydrate,
 	render,
@@ -143,77 +149,9 @@ const flushSync = (callback, arg) => callback(arg);
  */
 const StrictMode = Fragment;
 
-export function startTransition(cb) {
-	cb();
-}
-
-export function useDeferredValue(val) {
-	return val;
-}
-
-export function useTransition() {
-	return [false, startTransition];
-}
-
-// TODO: in theory this should be done after a VNode is diffed as we want to insert
-// styles/... before it attaches
-export const useInsertionEffect = useLayoutEffect;
-
 // compat to react-is
 export const isElement = isValidElement;
 
-/**
- * This is taken from https://github.com/facebook/react/blob/main/packages/use-sync-external-store/src/useSyncExternalStoreShimClient.js#L84
- * on a high level this cuts out the warnings, ... and attempts a smaller implementation
- * @typedef {{ _value: any; _getSnapshot: () => any }} Store
- */
-export function useSyncExternalStore(subscribe, getSnapshot) {
-	const value = getSnapshot();
-
-	/**
-	 * @typedef {{ _instance: Store }} StoreRef
-	 * @type {[StoreRef, (store: StoreRef) => void]}
-	 */
-	const [{ _instance }, forceUpdate] = useState({
-		_instance: { _value: value, _getSnapshot: getSnapshot }
-	});
-
-	useLayoutEffect(() => {
-		_instance._value = value;
-		_instance._getSnapshot = getSnapshot;
-
-		if (didSnapshotChange(_instance)) {
-			forceUpdate({ _instance });
-		}
-	}, [subscribe, value, getSnapshot]);
-
-	useEffect(() => {
-		if (didSnapshotChange(_instance)) {
-			forceUpdate({ _instance });
-		}
-
-		return subscribe(() => {
-			if (didSnapshotChange(_instance)) {
-				forceUpdate({ _instance });
-			}
-		});
-	}, [subscribe]);
-
-	return value;
-}
-
-/** @type {(inst: Store) => boolean} */
-function didSnapshotChange(inst) {
-	const latestGetSnapshot = inst._getSnapshot;
-	const prevValue = inst._value;
-	try {
-		const nextValue = latestGetSnapshot();
-		return !is(prevValue, nextValue);
-	} catch (error) {
-		return true;
-	}
-}
-
 export * from 'preact/hooks';
 export {
 	version,
@@ -237,6 +175,11 @@ export {
 	memo,
 	forwardRef,
 	flushSync,
+	useInsertionEffect,
+	startTransition,
+	useDeferredValue,
+	useSyncExternalStore,
+	useTransition,
 	// eslint-disable-next-line camelcase
 	unstable_batchedUpdates,
 	StrictMode,

demo/index.jsx

@@ -26,7 +26,7 @@ import NestedSuspenseBug from './nested-suspense';
 import Contenteditable from './contenteditable';
 import { MobXDemo } from './mobx';
 import Zustand from './zustand';
-import ReduxToolkit from './redux_toolkit';
+import ReduxToolkit from './redux-toolkit';
 
 let isBenchmark = /(\/spiral|\/pythagoras|[#&]bench)/g.test(
 	window.location.href