blob: b9d7ea0bed21144f480e466d419daf15be083e77 [file] [log] [blame]
// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
const input = {
a: 1,
b: 2,
c: 3,
['d']: 4,
1: 5
};
// ----------------------------------------------------------------------------
// Benchmark: Babel
// ----------------------------------------------------------------------------
function _extends(target) {
for (var i = 1; i < arguments.length; i++) {
var source = arguments[i];
for (var key in source) {
if (Object.prototype.hasOwnProperty.call(source, key)) {
target[key] = source[key];
}
}
}
return target;
};
function Babel() {
const result = _extends({}, input);
if (Object.keys(result).length != 5) throw 666;
}
function BabelAndOverwrite() {
const result = _extends({}, input, {a: 6});
if (Object.keys(result).length != 5) throw 666;
}
// ----------------------------------------------------------------------------
// Benchmark: Object.assign
// ----------------------------------------------------------------------------
function ObjectAssign() {
const result = Object.assign({}, input);
if (Object.keys(result).length != 5) throw 666;
}
function ObjectAssignAndOverwrite() {
const result = Object.assign({}, input, {a : 6});
if (Object.keys(result).length != 5) throw 666;
}
// ----------------------------------------------------------------------------
// Benchmark: Object.assign
// ----------------------------------------------------------------------------
function ObjectSpread() {
const result = { ...input };
if (Object.keys(result).length != 5) throw 666;
}
function ObjectSpreadAndOverwrite() {
const result = { ...input, a: 6 };
if (Object.keys(result).length != 5) throw 666;
}
// ----------------------------------------------------------------------------
// Setup and Run
// ----------------------------------------------------------------------------
load('../base.js');
var success = true;
function PrintResult(name, result) {
print(name + '-ObjectLiteralSpread(Score): ' + result);
}
function PrintError(name, error) {
PrintResult(name, error);
success = false;
}
function CreateBenchmark(name, f) {
new BenchmarkSuite(name, [100], [ new Benchmark(name, false, false, 0, f) ]);
}
CreateBenchmark('Babel', Babel);
CreateBenchmark('BabelAndOverwrite', BabelAndOverwrite);
CreateBenchmark('ObjectAssign', ObjectAssign);
CreateBenchmark('ObjectAssignAndOverwrite', ObjectAssignAndOverwrite);
CreateBenchmark('ObjectSpread', ObjectSpread);
CreateBenchmark('ObjectSpreadAndOverwrite', ObjectSpreadAndOverwrite);
BenchmarkSuite.config.doWarmup = undefined;
BenchmarkSuite.config.doDeterministic = undefined;
BenchmarkSuite.RunSuites({NotifyResult: PrintResult, NotifyError: PrintError});