1/* 2 * Copyright (c) 2021-2025 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 16function foo(form?: String) { 17 const f = (form == undefined) ? "abc" : form 18 switch (f) { 19 case "abc": 20 return 41 21 case "xyz": 22 return 42 23 default: 24 return 0 25 } 26} 27 28class A{} 29 30function main(): void { 31 assertEQ(foo(), 41, "Error! foo() must be equal 41") 32 assertEQ(foo("xyz"), 42, "Error! foo(\"xyz\") must be equal 42") 33 assertEQ(foo("NFD"), 0, "Error! foo(\"NFD\") must be equal 0") 34 let x = foo() == 41 ? new A() : undefined; 35 assertTrue(x instanceof A) 36 let y = foo("wxyz") == 42 ? "TRUE" : new A(); 37 assertTrue(y instanceof A) 38 y = "JK"; 39 assertEQ(y, "JK") 40} 41