| import type { AsyncLocalStorage } from 'async_hooks' |
|
|
| const sharedAsyncLocalStorageNotAvailableError = new Error( |
| 'Invariant: AsyncLocalStorage accessed in runtime where it is not available' |
| ) |
|
|
| class FakeAsyncLocalStorage<Store extends {}> |
| implements AsyncLocalStorage<Store> |
| { |
| disable(): void { |
| throw sharedAsyncLocalStorageNotAvailableError |
| } |
|
|
| getStore(): Store | undefined { |
| |
| return undefined |
| } |
|
|
| run<R>(): R { |
| throw sharedAsyncLocalStorageNotAvailableError |
| } |
|
|
| exit<R>(): R { |
| throw sharedAsyncLocalStorageNotAvailableError |
| } |
|
|
| enterWith(): void { |
| throw sharedAsyncLocalStorageNotAvailableError |
| } |
|
|
| static bind<T>(fn: T): T { |
| return fn |
| } |
| } |
|
|
| const maybeGlobalAsyncLocalStorage = |
| typeof globalThis !== 'undefined' && (globalThis as any).AsyncLocalStorage |
|
|
| export function createAsyncLocalStorage< |
| Store extends {}, |
| >(): AsyncLocalStorage<Store> { |
| if (maybeGlobalAsyncLocalStorage) { |
| return new maybeGlobalAsyncLocalStorage() |
| } |
| return new FakeAsyncLocalStorage() |
| } |
|
|
| export function bindSnapshot<T>(fn: T): T { |
| if (maybeGlobalAsyncLocalStorage) { |
| return maybeGlobalAsyncLocalStorage.bind(fn) |
| } |
| return FakeAsyncLocalStorage.bind(fn) |
| } |
|
|
| export function createSnapshot(): <R, TArgs extends any[]>( |
| fn: (...args: TArgs) => R, |
| ...args: TArgs |
| ) => R { |
| if (maybeGlobalAsyncLocalStorage) { |
| return maybeGlobalAsyncLocalStorage.snapshot() |
| } |
| return function (fn: any, ...args: any[]) { |
| return fn(...args) |
| } |
| } |
|
|
