AsyncOnceCell

import { AsyncOnceCell } from "destack:async";

One-time async initialized cell.

language/library/src/async/once.ds:21:44

1export class AsyncOnceCell<T> {2    value: MaybeUninit<T>;3    get(): &readonly T | undefined;4    set(value: ^T): Result<void, ^T>;5    getOrInit(init: () => Task<T>): Task<&readonly T>;6    take(): T | undefined;7}

Members

value: MaybeUninit<T>: The stored value.
get(): &readonly T | undefined: Get the initialized value.
set(value: ^T): Result<void, ^T>: Set the value once.
getOrInit(init: () => Task<T>): Task<&readonly T>: Get the value or initialize it.
take(): T | undefined: Move the value out when initialized.