js-crc32/perf/bm.js

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/* bm.js (C) 2014-present SheetJS -- http://sheetjs.com */
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var Benchmark = require('benchmark');
var c = require('ansi')(process.stdout);
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function test_end(e) { c.horizontalAbsolute(0).write("✓ "+e.target); c.write('\n'); }
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function suite_end() {
var o = this.filter('fastest');
var m = typeof o.pluck === 'undefined' ? o.map('name') : o.pluck('name');
console.log('Fastest is ' + m);
}
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function test_cycle(e) { c.horizontalAbsolute(0); c.eraseLine(); c.write("→ "+e.target); }
function BM(name) {
if(!(this instanceof BM)) return new BM(name);
console.log("--- " + name + " ---");
this.suite = new Benchmark.Suite(name, { onComplete: suite_end });
this.suites = [];
this.maxlen = 0;
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}
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BM.prototype.run = function(skip) {
if(skip) { this.suites.forEach(function(s) { s[1].fn(); }); return; }
var maxlen = this.maxlen, ss = this.suite;
this.suites.forEach(function(s) { ss.add(s[0] + new Array(maxlen-s[0].length+1).join(" "), s[1]); });
if(this.suites.length > 0) this.suite.run();
};
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BM.prototype.add = function(msg, test) {
this.suites.push([msg, {
onCycle: test_cycle,
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onComplete: test_end,
defer: false,
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fn: test
}]);
this.maxlen = Math.max(this.maxlen, msg.length);
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};
module.exports = BM;