| import { Deferred, sleep } from './sleep' | |
| export function Streamable(write: number) { | |
| const encoder = new TextEncoder() | |
| const canceled = new Deferred() | |
| const aborted = new Deferred() | |
| let i = 0 | |
| const streamable = { | |
| finished: Promise.any([canceled.promise, aborted.promise]).then(() => i), | |
| abort() { | |
| aborted.resolve() | |
| }, | |
| stream: new ReadableStream({ | |
| async pull(controller) { | |
| if (i >= write) { | |
| return | |
| } | |
| await sleep(100) | |
| controller.enqueue(encoder.encode(String(i++))) | |
| }, | |
| cancel() { | |
| canceled.resolve() | |
| }, | |
| }), | |
| } | |
| return streamable | |
| } | |