node_events.js

var a=typeof Reflect=="object"?Reflect:null,m=a&&typeof a.apply=="function"?a.apply:function(e,n,r){return Function.prototype.apply.call(e,n,r)},v;a&&typeof a.ownKeys=="function"?v=a.ownKeys:Object.getOwnPropertySymbols?v=function(e){return Object.getOwnPropertyNames(e).concat(Object.getOwnPropertySymbols(e))}:v=function(e){return Object.getOwnPropertyNames(e)};function C(t){console&&console.warn&&console.warn(t)}var p=Number.isNaN||function(e){return e!==e};function o(){d.call(this)}o.EventEmitter=o,o.prototype._events=void 0,o.prototype._eventsCount=0,o.prototype._maxListeners=void 0;var l=10;function h(t){if(typeof t!="function")throw new TypeError('The "listener" argument must be of type Function. Received type '+typeof t)}Object.defineProperty(o,"defaultMaxListeners",{enumerable:!0,get:function(){return l},set:function(t){if(typeof t!="number"||t<0||p(t))throw new RangeError('The value of "defaultMaxListeners" is out of range. It must be a non-negative number. Received '+t+".");l=t}});function d(){(this._events===void 0||this._events===Object.getPrototypeOf(this)._events)&&(this._events=Object.create(null),this._eventsCount=0),this._maxListeners=this._maxListeners||void 0}o.init=d,o.prototype.setMaxListeners=function(e){if(typeof e!="number"||e<0||p(e))throw new RangeError('The value of "n" is out of range. It must be a non-negative number. Received '+e+".");return this._maxListeners=e,this};function y(t){return t._maxListeners===void 0?o.defaultMaxListeners:t._maxListeners}o.prototype.getMaxListeners=function(){return y(this)},o.prototype.emit=function(e){for(var n=[],r=1;r<arguments.length;r++)n.push(arguments[r]);var i=e==="error",f=this._events;if(f!==void 0)i=i&&f.error===void 0;else if(!i)return!1;if(i){var s;if(n.length>0&&(s=n[0]),s instanceof Error)throw s;var u=new Error("Unhandled error."+(s?" ("+s.message+")":""));throw u.context=s,u}var c=f[e];if(c===void 0)return!1;if(typeof c=="function")m(c,this,n);else for(var L=c.length,x=E(c,L),r=0;r<L;++r)m(x[r],this,n);return!0};function g(t,e,n,r){var i,f,s;if(h(n),f=t._events,f===void 0?(f=t._events=Object.create(null),t._eventsCount=0):(f.newListener!==void 0&&(t.emit("newListener",e,n.listener?n.listener:n),f=t._events),s=f[e]),s===void 0)s=f[e]=n,++t._eventsCount;else if(typeof s=="function"?s=f[e]=r?[n,s]:[s,n]:r?s.unshift(n):s.push(n),i=y(t),i>0&&s.length>i&&!s.warned){s.warned=!0;var u=new Error("Possible EventEmitter memory leak detected. "+s.length+" "+String(e)+" listeners added. Use emitter.setMaxListeners() to increase limit");u.name="MaxListenersExceededWarning",u.emitter=t,u.type=e,u.count=s.length,C(u)}return t}o.prototype.addListener=function(e,n){return g(this,e,n,!1)},o.prototype.on=o.prototype.addListener,o.prototype.prependListener=function(e,n){return g(this,e,n,!0)};function R(){if(!this.fired)return this.target.removeListener(this.type,this.wrapFn),this.fired=!0,arguments.length===0?this.listener.call(this.target):this.listener.apply(this.target,arguments)}function w(t,e,n){var r={fired:!1,wrapFn:void 0,target:t,type:e,listener:n},i=R.bind(r);return i.listener=n,r.wrapFn=i,i}o.prototype.once=function(e,n){return h(n),this.on(e,w(this,e,n)),this},o.prototype.prependOnceListener=function(e,n){return h(n),this.prependListener(e,w(this,e,n)),this},o.prototype.removeListener=function(e,n){var r,i,f,s,u;if(h(n),i=this._events,i===void 0)return this;if(r=i[e],r===void 0)return this;if(r===n||r.listener===n)--this._eventsCount===0?this._events=Object.create(null):(delete i[e],i.removeListener&&this.emit("removeListener",e,r.listener||n));else if(typeof r!="function"){for(f=-1,s=r.length-1;s>=0;s--)if(r[s]===n||r[s].listener===n){u=r[s].listener,f=s;break}if(f<0)return this;f===0?r.shift():M(r,f),r.length===1&&(i[e]=r[0]),i.removeListener!==void 0&&this.emit("removeListener",e,u||n)}return this},o.prototype.off=o.prototype.removeListener,o.prototype.removeAllListeners=function(e){var n,r,i;if(r=this._events,r===void 0)return this;if(r.removeListener===void 0)return arguments.length===0?(this._events=Object.create(null),this._eventsCount=0):r[e]!==void 0&&(--this._eventsCount===0?this._events=Object.create(null):delete r[e]),this;if(arguments.length===0){var f=Object.keys(r),s;for(i=0;i<f.length;++i)s=f[i],s!=="removeListener"&&this.removeAllListeners(s);return this.removeAllListeners("removeListener"),this._events=Object.create(null),this._eventsCount=0,this}if(n=r[e],typeof n=="function")this.removeListener(e,n);else if(n!==void 0)for(i=n.length-1;i>=0;i--)this.removeListener(e,n[i]);return this};function _(t,e,n){var r=t._events;if(r===void 0)return[];var i=r[e];return i===void 0?[]:typeof i=="function"?n?[i.listener||i]:[i]:n?j(i):E(i,i.length)}o.prototype.listeners=function(e){return _(this,e,!0)},o.prototype.rawListeners=function(e){return _(this,e,!1)};function b(t,e){return typeof t.listenerCount=="function"?t.listenerCount(e):o.prototype.listenerCount.call(t,e)}o.listenerCount=b,o.prototype.listenerCount=function(t){var e=this._events;if(e!==void 0){var n=e[t];if(typeof n=="function")return 1;if(n!==void 0)return n.length}return 0},o.prototype.eventNames=function(){return this._eventsCount>0?v(this._events):[]};function E(t,e){for(var n=new Array(e),r=0;r<e;++r)n[r]=t[r];return n}function M(t,e){for(;e+1<t.length;e++)t[e]=t[e+1];t.pop()}function j(t){for(var e=new Array(t.length),n=0;n<e.length;++n)e[n]=t[n].listener||t[n];return e}function N(t,e){return new Promise(function(n,r){function i(s){t.removeListener(e,f),r(s)}function f(){typeof t.removeListener=="function"&&t.removeListener("error",i),n([].slice.call(arguments))}O(t,e,f,{once:!0}),e!=="error"&&A(t,i,{once:!0})})}function A(t,e,n){typeof t.on=="function"&&O(t,"error",e,n)}function O(t,e,n,r){if(typeof t.on=="function")r.once?t.once(e,n):t.on(e,n);else if(typeof t.addEventListener=="function")t.addEventListener(e,function i(f){r.once&&t.removeEventListener(e,i),n(f)});else throw new TypeError('The "emitter" argument must be of type EventEmitter. Received type '+typeof t)}function P(t=l,...e){if(typeof t!="number"||t<0||p(t))throw new RangeError('The value of "n" is out of range. It must be a non-negative number. Received '+t+".");if(e.length===0)l=t;else for(let n=0;n<e.length;n++){const r=e[n];if(typeof r.setMaxListeners=="function")r.setMaxListeners(t);else throw new TypeError("eventTarget is invalid, must have 'setMaxListeners' method.")}}export{o as EventEmitter,o as default,l as defaultMaxListeners,d as init,b as listenerCount,N as once,P as setMaxListeners};