71 lines
2.0 KiB
JavaScript
71 lines
2.0 KiB
JavaScript
|
// Copyright 2016 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.
|
||
|
|
|
||
|
|
// ----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
function shallowClone(object) {
|
||
|
|
return Object.create(object.__proto__,
|
||
|
|
Object.getOwnPropertyDescriptors(object));
|
||
|
|
}
|
||
|
|
|
||
|
|
function makeSlowCopy(object) {
|
||
|
|
object = shallowClone(object);
|
||
|
|
object.__foo__ = 1;
|
||
|
|
delete object.__foo__;
|
||
|
|
return object;
|
||
|
|
}
|
||
|
|
|
||
|
|
function convertToPropertyDescriptors(dict) {
|
||
|
|
for (var key in dict) {
|
||
|
|
var propertiesObject = dict[key];
|
||
|
|
dict[key] = Object.getOwnPropertyDescriptors(propertiesObject);
|
||
|
|
}
|
||
|
|
return dict;
|
||
|
|
}
|
||
|
|
|
||
|
|
var properties_5 = { a:1, b:2, c:3, d:4, e:5 };
|
||
|
|
var TEST_PROPERTIES = convertToPropertyDescriptors({
|
||
|
|
empty: {},
|
||
|
|
array_5: [1, 2, 3, 4, 5],
|
||
|
|
properties_5: properties_5,
|
||
|
|
properties_10: { a:1, b:2, c:3, d:4, e:5, f:6, g:7, h:8, i:9, j:10 },
|
||
|
|
properties_dict: makeSlowCopy(properties_5)
|
||
|
|
});
|
||
|
|
|
||
|
|
var TEST_PROTOTYPES = {
|
||
|
|
null: null,
|
||
|
|
empty: {},
|
||
|
|
'Object.prototype': Object.prototype,
|
||
|
|
'Array.prototype': Array.prototype
|
||
|
|
};
|
||
|
|
|
||
|
|
// ----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
var testFunction = () => {
|
||
|
|
return Object.create(prototype, properties);
|
||
|
|
}
|
||
|
|
|
||
|
|
function createTestFunction(prototype, properties) {
|
||
|
|
// Force a new function for each test-object to avoid side-effects due to ICs.
|
||
|
|
var random_comment = "\n// random comment" + Math.random() + "\n";
|
||
|
|
return eval(random_comment + testFunction.toString());
|
||
|
|
}
|
||
|
|
|
||
|
|
// ----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
var benchmarks = []
|
||
|
|
|
||
|
|
for (var proto_name in TEST_PROTOTYPES) {
|
||
|
|
var prototype = TEST_PROTOTYPES[proto_name];
|
||
|
|
for (var prop_name in TEST_PROPERTIES) {
|
||
|
|
var properties = TEST_PROPERTIES[prop_name];
|
||
|
|
var name = 'Create proto:' + proto_name + " properties:" + prop_name;
|
||
|
|
benchmarks.push(
|
||
|
|
new Benchmark(name, false, false, 0,
|
||
|
|
createTestFunction(prototype, properties)));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
new BenchmarkSuite('Create', [1000], benchmarks);
|