| 1 | /** |
| 2 | * Runs asynchronous operations in call order while keeping the queue usable |
| 3 | * after an individual operation rejects. |
| 4 | */ |
| 5 | export class SerializedAsyncQueue { |
| 6 | private tail: Promise<void> = Promise.resolve(); |
| 7 | |
| 8 | run<T>(operation: () => Promise<T>): Promise<T> { |
| 9 | const result = this.tail.then(operation, operation); |
| 10 | this.tail = result.then( |
| 11 | () => undefined, |
| 12 | () => undefined, |
| 13 | ); |
| 14 | return result; |
| 15 | } |
| 16 | } |