/** * 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(); } }