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 18 19function normalForEach(){ 20 var x = [1,2.5,NaN,undefined,null,false,true] 21 x.forEach(ele=>{ 22 if (ele != 1 || ele != true){ 23 print(ele) 24 } 25 }) 26} 27function lenthChangeLess(){ 28 var y = [1,2.5,NaN,undefined,null,false,true] 29 y.forEach(ele=>{ 30 if (ele == 2.5) { 31 y.length = 5 32 } 33 if (ele != null) { 34 print(ele) 35 } 36 }) 37} 38function lengthChangeBigToDic(){ 39 var y = [1,2.5,NaN,undefined,null,false,true] 40 y.forEach(ele=>{ 41 if (ele == 2.5) { 42 y.length = 10000 43 y[9999] = 9999 44 } 45 if (ele != null) { 46 print(ele) 47 } 48 }) 49} 50function prototypeChange(){ 51 var z = [1,,NaN,false,undefined,,,true] 52 z.forEach(ele=>{ 53 if (ele == false){ 54 Array.prototype[1] = "position2" 55 Array.prototype[5] = "position5" 56 Object.prototype[6] = "position6" 57 } 58 if (ele == "position2" || ele == "position5" || ele == "position6"){ 59 print(ele) 60 } 61 }) 62} 63//aot: [trace] aot inline function name: #*#normalForEach@builtinArrayForEachProtoChange caller function name: func_main_0@builtinArrayForEachProtoChange 64//aot: [trace] aot inline builtin: Array.prototype.foreach, caller function name:#*#normalForEach@builtinArrayForEachProtoChange 65//: 2.5 66//: NaN 67//: undefined 68//: null 69//: false 70normalForEach() 71//aot: [trace] aot inline function name: #*#lenthChangeLess@builtinArrayForEachProtoChange caller function name: func_main_0@builtinArrayForEachProtoChange 72//aot: [trace] aot call builtin: Array.prototype.foreach, caller function name:#*#lenthChangeLess@builtinArrayForEachProtoChange 73//: 1 74//: 2.5 75//: NaN 76lenthChangeLess() 77//aot: [trace] aot inline function name: #*#lengthChangeBigToDic@builtinArrayForEachProtoChange caller function name: func_main_0@builtinArrayForEachProtoChange 78//aot: [trace] aot call builtin: Array.prototype.foreach, caller function name:#*#lengthChangeBigToDic@builtinArrayForEachProtoChange 79//: 1 80//: 2.5 81//: NaN 82//: false 83//: true 84lengthChangeBigToDic() 85//aot: [trace] aot inline function name: #*#prototypeChange@builtinArrayForEachProtoChange caller function name: func_main_0@builtinArrayForEachProtoChange 86//aot: [trace] aot call builtin: Array.prototype.foreach, caller function name:#*#prototypeChange@builtinArrayForEachProtoChange 87//: position5 88//: position6 89prototypeChange() 90