27 lines
588 B
TypeScript
27 lines
588 B
TypeScript
// Wrapper for a promise that we can await the promise in one case
|
|
// while allowing an unrelated event to fulfill it elsewhere.
|
|
export default class Deferred<T> {
|
|
private promise: Promise<T>;
|
|
private resolver: (T?) => void;
|
|
private rejecter: (Error?) => void;
|
|
|
|
constructor() {
|
|
this.promise = new Promise<T>((resolve, reject) => {
|
|
this.resolver = resolve;
|
|
this.rejecter = reject;
|
|
});
|
|
}
|
|
|
|
resolve(value?: T) {
|
|
this.resolver(value);
|
|
}
|
|
|
|
reject(error?: Error) {
|
|
this.rejecter(error);
|
|
}
|
|
|
|
getPromise(): Promise<T> {
|
|
return this.promise;
|
|
}
|
|
}
|