7dc1a87a7b
Adds new microbenchmarks for destructuring, rest params and default params. PR-URL: https://github.com/nodejs/node/pull/6222 Reviewed-By: Brian White <mscdex@mscdex.net>
58 lines
1 KiB
JavaScript
58 lines
1 KiB
JavaScript
'use strict';
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const common = require('../common.js');
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const assert = require('assert');
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const bench = common.createBenchmark(main, {
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method: ['withoutdefaults', 'withdefaults'],
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millions: [100]
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});
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function oldStyleDefaults(x, y) {
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x = x || 1;
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y = y || 2;
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assert.strictEqual(x, 1);
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assert.strictEqual(y, 2);
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}
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function defaultParams(x = 1, y = 2) {
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assert.strictEqual(x, 1);
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assert.strictEqual(y, 2);
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}
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function runOldStyleDefaults(n) {
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common.v8ForceOptimization(oldStyleDefaults);
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var i = 0;
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bench.start();
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for (; i < n; i++)
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oldStyleDefaults();
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bench.end(n / 1e6);
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}
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function runDefaultParams(n) {
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common.v8ForceOptimization(defaultParams);
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var i = 0;
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bench.start();
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for (; i < n; i++)
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defaultParams();
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bench.end(n / 1e6);
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}
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function main(conf) {
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const n = +conf.millions * 1e6;
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switch (conf.method) {
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case 'withoutdefaults':
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runOldStyleDefaults(n);
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break;
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case 'withdefaults':
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runDefaultParams(n);
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break;
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default:
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throw new Error('Unexpected method');
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}
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}
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