/opt/canhelp/node_modules/openai/core
Edit: /opt/canhelp/node_modules/openai/core/EventEmitter.mjs (3330B)
var _EventEmitter_listeners;
import { __classPrivateFieldGet } from "../internal/tslib.mjs";
export class EventEmitter {
constructor() {
_EventEmitter_listeners.set(this, {});
}
/**
* Adds the listener function to the end of the listeners array for the event.
* No checks are made to see if the listener has already been added. Multiple calls passing
* the same combination of event and listener will result in the listener being added, and
* called, multiple times.
* @returns this, so that calls can be chained
*/
on(event, listener) {
const listeners = __classPrivateFieldGet(this, _EventEmitter_listeners, "f")[event] || (__classPrivateFieldGet(this, _EventEmitter_listeners, "f")[event] = []);
listeners.push({ listener });
return this;
}
/**
* Removes the specified listener from the listener array for the event.
* off() will remove, at most, one instance of a listener from the listener array. If any single
* listener has been added multiple times to the listener array for the specified event, then
* off() must be called multiple times to remove each instance.
* @returns this, so that calls can be chained
*/
off(event, listener) {
const listeners = __classPrivateFieldGet(this, _EventEmitter_listeners, "f")[event];
if (!listeners)
return this;
const index = listeners.findIndex((l) => l.listener === listener);
if (index >= 0)
listeners.splice(index, 1);
return this;
}
/**
* Adds a one-time listener function for the event. The next time the event is triggered,
* this listener is removed and then invoked.
* @returns this, so that calls can be chained
*/
once(event, listener) {
const listeners = __classPrivateFieldGet(this, _EventEmitter_listeners, "f")[event] || (__classPrivateFieldGet(this, _EventEmitter_listeners, "f")[event] = []);
listeners.push({ listener, once: true });
return this;
}
/**
* This is similar to `.once()`, but returns a Promise that resolves the next time
* the event is triggered, instead of calling a listener callback.
* @returns a Promise that resolves the next time given event is triggered,
* or rejects if an error is emitted. (If you request the 'error' event,
* returns a promise that resolves with the error).
*
* Example:
*
* const message = await stream.emitted('message') // rejects if the stream errors
*/
emitted(event) {
return new Promise((resolve, reject) => {
// TODO: handle errors
this.once(event, resolve);
});
}
_emit(event, ...args) {
const listeners = __classPrivateFieldGet(this, _EventEmitter_listeners, "f")[event];
if (listeners) {
__classPrivateFieldGet(this, _EventEmitter_listeners, "f")[event] = listeners.filter((l) => !l.once);
listeners.forEach(({ listener }) => listener(...args));
}
}
_hasListener(event) {
const listeners = __classPrivateFieldGet(this, _EventEmitter_listeners, "f")[event];
return listeners && listeners.length > 0;
}
}
_EventEmitter_listeners = new WeakMap();
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