jest-environment-emit
Version:
Environment with unlimited test event handlers
19 lines (18 loc) • 842 B
TypeScript
import { debugLogger } from '../utils';
import type { ReadonlyEmitter } from './Emitter';
declare const ONCE: unique symbol;
export declare abstract class ReadonlyEmitterBase<EventMap> implements ReadonlyEmitter<EventMap> {
#private;
protected readonly _log: typeof debugLogger;
protected readonly _listeners: Map<keyof EventMap | '*', [Function, number][]>;
constructor(name: string);
on<K extends keyof EventMap>(type: K | '*', listener: Function & {
[ONCE]?: true;
}, order?: number): this;
once<K extends keyof EventMap>(type: K | '*', listener: Function, order?: number): this;
off<K extends keyof EventMap>(type: K | '*', listener: Function & {
[ONCE]?: true;
}, _order?: number): this;
protected _getListeners<K extends keyof EventMap>(type: K): Iterable<Function>;
}
export {};