1/* 2 * Copyright (c) 2024 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16declare function print(arg: any): string; 17 18declare interface ArkTools { 19 timeInUs(arg: any): number; 20} 21 22const REP_COUNT = 1_000_000; 23 24// Tests optimization of JSArray::CreateArrayFromList() in js_array.cpp 25function testOwnKeys() { 26 const obj = {}; 27 const arr = []; 28 29 let start: number; 30 let end: number; 31 32 start = ArkTools.timeInUs(); 33 for (let i = 0; i < REP_COUNT; i++) { 34 Reflect.ownKeys(obj); // Triggers JSArray::CreateArrayFromList() 35 } 36 end = ArkTools.timeInUs(); 37 print(`Reflect.ownKeys(obj):\t${((end - start) / 1000).toFixed(3)}\tms`); 38 39 start = ArkTools.timeInUs(); 40 for (let i = 0; i < REP_COUNT; i++) { 41 Reflect.ownKeys(arr); // Triggers JSArray::CreateArrayFromList() 42 } 43 end = ArkTools.timeInUs(); 44 print(`Reflect.ownKeys(arr):\t${((end - start) / 1000).toFixed(3)}\tms`); 45} 46 47testOwnKeys(); 48