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// deno-fmt-ignore-file// deno-lint-ignore-file
// Copyright Joyent and Node contributors. All rights reserved. MIT license.// Taken from Node 16.13.0// This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
// Copyright Joyent, Inc. and other Node contributors.//// Permission is hereby granted, free of charge, to any person obtaining a// copy of this software and associated documentation files (the// "Software"), to deal in the Software without restriction, including// without limitation the rights to use, copy, modify, merge, publish,// distribute, sublicense, and/or sell copies of the Software, and to permit// persons to whom the Software is furnished to do so, subject to the// following conditions://// The above copyright notice and this permission notice shall be included// in all copies or substantial portions of the Software.//// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';const common = require('../common');const assert = require('assert');const EventEmitter = require('events').EventEmitter;
Object.setPrototypeOf(MyEE.prototype, EventEmitter.prototype);Object.setPrototypeOf(MyEE, EventEmitter);
function MyEE(cb) {  this.once(1, cb);  this.emit(1);  this.removeAllListeners();  EventEmitter.call(this);}
const myee = new MyEE(common.mustCall());
myee.hasOwnProperty('usingDomains');
Object.setPrototypeOf(ErrorEE.prototype, EventEmitter.prototype);Object.setPrototypeOf(ErrorEE, EventEmitter);function ErrorEE() {  this.emit('error', new Error('blerg'));}
assert.throws(function() {  new ErrorEE();}, /blerg/);
process.on('exit', function() {  assert(!(myee._events instanceof Object));  assert.deepStrictEqual(Object.keys(myee._events), []);  console.log('ok');});

function MyEE2() {  EventEmitter.call(this);}
MyEE2.prototype = new EventEmitter();
const ee1 = new MyEE2();const ee2 = new MyEE2();
ee1.on('x', () => {});
assert.strictEqual(ee2.listenerCount('x'), 0);