[utils] Allow nested imports for MUI-X

packages/mui-utils/src/HTMLElementType/index.ts

@@ -0,0 +1 @@
+export { default } from './HTMLElementType';

packages/mui-utils/src/capitalize.js → packages/mui-utils/src/capitalize/capitalize.ts

@@ -1,9 +1,10 @@
-import MuiError from '../macros/MuiError.macro';
+import MuiError from '../../macros/MuiError.macro';
+
 // It should to be noted that this function isn't equivalent to `text-transform: capitalize`.
 //
 // A strict capitalization should uppercase the first letter of each word in the sentence.
 // We only handle the first word.
-export default function capitalize(string) {
+export default function capitalize(string: string): string {
   if (typeof string !== 'string') {
     throw new MuiError('MUI: `capitalize(string)` expects a string argument.');
   }

packages/mui-utils/src/capitalize/index.ts

@@ -0,0 +1 @@
+export { default } from './capitalize';

packages/mui-utils/src/chainPropTypes/index.ts

@@ -0,0 +1 @@
+export { default } from './chainPropTypes';

packages/mui-utils/src/debounce.js → packages/mui-utils/src/debounce/debounce.ts

@@ -1,9 +1,14 @@
+export interface Cancelable {
+  clear(): void;
+}
+
 // Corresponds to 10 frames at 60 Hz.
 // A few bytes payload overhead when lodash/debounce is ~3 kB and debounce ~300 B.
-export default function debounce(func, wait = 166) {
-  let timeout;
-  function debounced(...args) {
+export default function debounce<T extends (...args: any[]) => any>(func: T, wait = 166) {
+  let timeout: ReturnType<typeof setTimeout>;
+  function debounced(...args: Parameters<T>) {
     const later = () => {
+      // @ts-ignore
       func.apply(this, args);
     };
     clearTimeout(timeout);
@@ -14,5 +19,5 @@ export default function debounce(func, wait = 166) {
     clearTimeout(timeout);
   };
 
-  return debounced;
+  return debounced as T & Cancelable;
 }

packages/mui-utils/src/debounce/index.ts

@@ -0,0 +1,2 @@
+export { default } from './debounce';
+export * from './debounce';

packages/mui-utils/src/exactProp/index.ts

@@ -0,0 +1 @@
+export { default } from './exactProp';

packages/mui-utils/src/ownerDocument/index.ts

@@ -0,0 +1 @@
+export { default } from './ownerDocument';

packages/mui-utils/src/ownerWindow/index.ts

@@ -0,0 +1 @@
+export { default } from './ownerWindow';

packages/mui-utils/src/ownerWindow.ts → packages/mui-utils/src/ownerWindow/ownerWindow.ts

@@ -1,4 +1,4 @@
-import ownerDocument from './ownerDocument';
+import ownerDocument from '../ownerDocument';
 
 export default function ownerWindow(node: Node | undefined): Window {
   const doc = ownerDocument(node);

packages/mui-utils/src/ponyfillGlobal/index.ts

@@ -0,0 +1 @@
+export { default } from './ponyfillGlobal';

packages/mui-utils/src/setRef.test.ts

@@ -1,7 +1,7 @@
 import * as React from 'react';
 import { expect } from 'chai';
 import { spy } from 'sinon';
-import { unstable_setRef as setRef } from '.';
+import setRef from './setRef';
 
 describe('setRef', () => {
   it('can handle callback refs', () => {

packages/mui-utils/src/useControlled/index.d.ts

@@ -0,0 +1,2 @@
+export { default } from './useControlled';
+export * from './useControlled';

packages/mui-utils/src/useControlled/index.js

@@ -0,0 +1 @@
+export { default } from './useControlled';

packages/mui-utils/src/useEnhancedEffect/index.ts

@@ -0,0 +1 @@
+export { default } from './useEnhancedEffect';

packages/mui-utils/src/useEventCallback/index.ts

@@ -0,0 +1 @@
+export { default } from './useEventCallback';

packages/mui-utils/src/useEventCallback.ts → packages/mui-utils/src/useEventCallback/useEventCallback.ts

@@ -1,5 +1,5 @@
 import * as React from 'react';
-import useEnhancedEffect from './useEnhancedEffect';
+import useEnhancedEffect from '../useEnhancedEffect';
 
 /**
  * https://github.com/facebook/react/issues/14099#issuecomment-440013892

packages/mui-utils/src/useForkRef/index.ts

@@ -0,0 +1 @@
+export { default } from './useForkRef';

packages/mui-utils/src/useForkRef.test.js → packages/mui-utils/src/useForkRef/useForkRef.test.js

@@ -1,7 +1,7 @@
 import * as React from 'react';
 import { expect } from 'chai';
 import { createRenderer, screen } from 'test/utils';
-import { unstable_useForkRef as useForkRef } from '.';
+import useForkRef from './useForkRef';
 
 describe('useForkRef', () => {
   const { render } = createRenderer();

packages/mui-utils/src/useForkRef.ts → packages/mui-utils/src/useForkRef/useForkRef.ts

@@ -1,5 +1,5 @@
 import * as React from 'react';
-import setRef from './setRef';
+import setRef from '../setRef';
 
 export default function useForkRef<Instance>(
   ...refs: Array<React.Ref<Instance> | undefined>

packages/mui-utils/src/useId/index.ts

@@ -0,0 +1 @@
+export { default } from './useId';