Remove experimental useOpaqueIdentifier API

packages/react-art/src/ReactARTHostConfig.js

@@ -436,24 +436,6 @@ export function getInstanceFromNode(node) {
   throw new Error('Not implemented.');
 }
 
-export function isOpaqueHydratingObject(value: mixed): boolean {
-  throw new Error('Not implemented.');
-}
-
-export function makeOpaqueHydratingObject(
-  attemptToReadValue: () => void,
-): OpaqueIDType {
-  throw new Error('Not implemented.');
-}
-
-export function makeClientId(): OpaqueIDType {
-  throw new Error('Not implemented.');
-}
-
-export function makeClientIdInDEV(warnOnAccessInDEV: () => void): OpaqueIDType {
-  throw new Error('Not implemented.');
-}
-
 export function beforeActiveInstanceBlur(internalInstanceHandle: Object) {
   // noop
 }

packages/react-debug-tools/src/ReactDebugHooks.js

@@ -18,13 +18,9 @@ import type {
   Fiber,
   Dispatcher as DispatcherType,
 } from 'react-reconciler/src/ReactInternalTypes';
-import type {OpaqueIDType} from 'react-reconciler/src/ReactFiberHostConfig';
-
-import {NoMode} from 'react-reconciler/src/ReactTypeOfMode';
 
 import ErrorStackParser from 'error-stack-parser';
 import ReactSharedInternals from 'shared/ReactSharedInternals';
-import {REACT_OPAQUE_ID_TYPE} from 'shared/ReactSymbols';
 import {
   FunctionComponent,
   SimpleMemoComponent,
@@ -53,8 +49,6 @@ type Dispatch<A> = A => void;
 
 let primitiveStackCache: null | Map<string, Array<any>> = null;
 
-let currentFiber: Fiber | null = null;
-
 type Hook = {
   memoizedState: any,
   next: Hook | null,
@@ -324,23 +318,6 @@ function useDeferredValue<T>(value: T): T {
   return value;
 }
 
-function useOpaqueIdentifier(): OpaqueIDType | void {
-  const hook = nextHook(); // State
-  if (currentFiber && currentFiber.mode === NoMode) {
-    nextHook(); // Effect
-  }
-  let value = hook === null ? undefined : hook.memoizedState;
-  if (value && value.$$typeof === REACT_OPAQUE_ID_TYPE) {
-    value = undefined;
-  }
-  hookLog.push({
-    primitive: 'OpaqueIdentifier',
-    stackError: new Error(),
-    value,
-  });
-  return value;
-}
-
 function useId(): string {
   const hook = nextHook();
   const id = hook !== null ? hook.memoizedState : '';
@@ -371,7 +348,6 @@ const Dispatcher: DispatcherType = {
   useMutableSource,
   useSyncExternalStore,
   useDeferredValue,
-  useOpaqueIdentifier,
   useId,
 };
 
@@ -767,8 +743,6 @@ export function inspectHooksOfFiber(
     currentDispatcher = ReactSharedInternals.ReactCurrentDispatcher;
   }
 
-  currentFiber = fiber;
-
   if (
     fiber.tag !== FunctionComponent &&
     fiber.tag !== SimpleMemoComponent &&

packages/react-debug-tools/src/__tests__/ReactHooksInspectionIntegration-test.js

@@ -598,64 +598,6 @@ describe('ReactHooksInspectionIntegration', () => {
     ]);
   });
 
-  it('should support composite useOpaqueIdentifier hook', () => {
-    function Foo(props) {
-      const id = React.unstable_useOpaqueIdentifier();
-      const [state] = React.useState(() => 'hello', []);
-      return <div id={id}>{state}</div>;
-    }
-
-    const renderer = ReactTestRenderer.create(<Foo />);
-    const childFiber = renderer.root.findByType(Foo)._currentFiber();
-    const tree = ReactDebugTools.inspectHooksOfFiber(childFiber);
-
-    expect(tree.length).toEqual(2);
-
-    expect(tree[0].id).toEqual(0);
-    expect(tree[0].isStateEditable).toEqual(false);
-    expect(tree[0].name).toEqual('OpaqueIdentifier');
-    expect(String(tree[0].value).startsWith('c_')).toBe(true);
-
-    expect(tree[1]).toEqual({
-      id: 1,
-      isStateEditable: true,
-      name: 'State',
-      value: 'hello',
-      subHooks: [],
-    });
-  });
-
-  it('should support composite useOpaqueIdentifier hook in concurrent mode', () => {
-    function Foo(props) {
-      const id = React.unstable_useOpaqueIdentifier();
-      const [state] = React.useState('hello');
-      return <div id={id}>{state}</div>;
-    }
-
-    const renderer = ReactTestRenderer.create(<Foo />, {
-      unstable_isConcurrent: true,
-    });
-    expect(Scheduler).toFlushWithoutYielding();
-
-    const childFiber = renderer.root.findByType(Foo)._currentFiber();
-    const tree = ReactDebugTools.inspectHooksOfFiber(childFiber);
-
-    expect(tree.length).toEqual(2);
-
-    expect(tree[0].id).toEqual(0);
-    expect(tree[0].isStateEditable).toEqual(false);
-    expect(tree[0].name).toEqual('OpaqueIdentifier');
-    expect(String(tree[0].value).startsWith('c_')).toBe(true);
-
-    expect(tree[1]).toEqual({
-      id: 1,
-      isStateEditable: true,
-      name: 'State',
-      value: 'hello',
-      subHooks: [],
-    });
-  });
-
   it('should support useId hook', () => {
     function Foo(props) {
       const id = React.unstable_useId();

packages/react-devtools-shared/src/backend/ReactSymbols.js

@@ -40,9 +40,6 @@ export const LAZY_SYMBOL_STRING = 'Symbol(react.lazy)';
 export const MEMO_NUMBER = 0xead3;
 export const MEMO_SYMBOL_STRING = 'Symbol(react.memo)';
 
-export const OPAQUE_ID_NUMBER = 0xeae0;
-export const OPAQUE_ID_SYMBOL_STRING = 'Symbol(react.opaque.id)';
-
 export const PORTAL_NUMBER = 0xeaca;
 export const PORTAL_SYMBOL_STRING = 'Symbol(react.portal)';