githubmr/facebook-react: The library for web and native user interfaces.

packages/react-server/src/ReactFlightServerConfigDebugNode.js

33 строки1 KB

Sebastian Markbåge

[Flight] Wire up async_hooks in Node.js DEV for inspecting Promises (#27840)

16 дек 2023, 05:38

16 дек 2023, 05:388b8d265

/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @flow
 */

import {createAsyncHook, executionAsyncId} from './ReactFlightServerConfig';
import {enableAsyncDebugInfo} from 'shared/ReactFeatureFlags';

// Initialize the tracing of async operations.
// We do this globally since the async work can potentially eagerly
// start before the first request and once requests start they can interleave.
// In theory we could enable and disable using a ref count of active requests
// but given that typically this is just a live server, it doesn't really matter.
export function initAsyncDebugInfo(): void {
  if (__DEV__ && enableAsyncDebugInfo) {
    createAsyncHook({
      init(asyncId: number, type: string, triggerAsyncId: number): void {
        // TODO
      },
      promiseResolve(asyncId: number): void {
        // TODO
        executionAsyncId();
      },
      destroy(asyncId: number): void {
        // TODO
      },
    }).enable();
  }
}