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'use strict';
const common = require('../common.js');
const EventEmitter = require('events').EventEmitter;
const bench = common.createBenchmark(main, {
n: [2e7],
argc: [0, 1, 4, 5]
});
function main({ n, argc }) {
const ee = new EventEmitter();
function listener() {}
switch (argc) {
case 0:
bench.start();
for (let i = 0; i < n; i += 1) {
const dummy = (i % 2 === 0) ? 'dummy0' : 'dummy1';
ee.once(dummy, listener);
ee.emit(dummy);
}
bench.end(n);
break;
case 1:
bench.start();
for (let i = 0; i < n; i += 1) {
const dummy = (i % 2 === 0) ? 'dummy0' : 'dummy1';
ee.once(dummy, listener);
ee.emit(dummy, n);
}
bench.end(n);
break;
case 4:
bench.start();
for (let i = 0; i < n; i += 1) {
const dummy = (i % 2 === 0) ? 'dummy0' : 'dummy1';
ee.once(dummy, listener);
ee.emit(dummy, 'foo', argc, 'bar', false);
}
bench.end(n);
break;
case 5:
bench.start();
for (let i = 0; i < n; i += 1) {
const dummy = (i % 2 === 0) ? 'dummy0' : 'dummy1';
ee.once(dummy, listener);
ee.emit(dummy, true, 7.5, 'foo', null, n);
}
bench.end(n);
break;
default:
throw new Error('Unsupported argument count');
}
}