"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.StrictEventEmitter = void 0; const events_1 = require("events"); /** * Strictly typed version of an `EventEmitter`. A `TypedEventEmitter` takes type * parameters for mappings of event names to event data types, and strictly * types method calls to the `EventEmitter` according to these event maps. * * @typeParam ListenEvents - `EventsMap` of user-defined events that can be * listened to with `on` or `once` * @typeParam EmitEvents - `EventsMap` of user-defined events that can be * emitted with `emit` * @typeParam ReservedEvents - `EventsMap` of reserved events, that can be * emitted by socket.io with `emitReserved`, and can be listened to with * `listen`. */ class StrictEventEmitter extends events_1.EventEmitter { /** * Adds the `listener` function as an event listener for `ev`. * * @param ev Name of the event * @param listener Callback function */ on(ev, listener) { return super.on(ev, listener); } /** * Adds a one-time `listener` function as an event listener for `ev`. * * @param ev Name of the event * @param listener Callback function */ once(ev, listener) { return super.once(ev, listener); } /** * Emits an event. * * @param ev Name of the event * @param args Values to send to listeners of this event */ emit(ev, ...args) { return super.emit(ev, ...args); } /** * Emits a reserved event. * * This method is `protected`, so that only a class extending * `StrictEventEmitter` can emit its own reserved events. * * @param ev Reserved event name * @param args Arguments to emit along with the event */ emitReserved(ev, ...args) { return super.emit(ev, ...args); } /** * Emits an event. * * This method is `protected`, so that only a class extending * `StrictEventEmitter` can get around the strict typing. This is useful for * calling `emit.apply`, which can be called as `emitUntyped.apply`. * * @param ev Event name * @param args Arguments to emit along with the event */ emitUntyped(ev, ...args) { return super.emit(ev, ...args); } /** * Returns the listeners listening to an event. * * @param event Event name * @returns Array of listeners subscribed to `event` */ listeners(event) { return super.listeners(event); } } exports.StrictEventEmitter = StrictEventEmitter;