Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 9x 9x 9x 9x 9x 3x 3x 9x 9x 6x 1x 1x 5x 5x 5x 5x 5x 9x 9x 3x 1x 1x 2x 2x 2x 2x 9x 9x | export type Stopper = () => void;
export type Starter = () => Stopper;
export interface StartableStoppable {
readonly started: boolean;
start: () => void;
stop: () => void;
}
type StartableStoppableState = "stopped" | "started" | "starting";
export function getStartableStoppable(id: string, startAndGetStopper: Starter): StartableStoppable {
let stop: Stopper;
let state: StartableStoppableState = "stopped";
return {
get started() {
return state === "started";
},
start: () => {
if (state !== "stopped") {
throw new Error(`Tried to start "${id}", but it is already ${state}.`);
}
state = "starting";
stop = startAndGetStopper();
state = "started";
},
stop: () => {
if (state !== "started") {
throw new Error(`Tried to stop "${id}", but it is already ${state}.`);
}
stop();
state = "stopped";
},
};
}
|