13af6ab5fSopenharmony_ci/* 23af6ab5fSopenharmony_ci * Copyright (c) 2023 - 2024 Huawei Device Co., Ltd. 33af6ab5fSopenharmony_ci * Licensed under the Apache License, Version 2.0 (the "License"); 43af6ab5fSopenharmony_ci * you may not use this file except in compliance with the License. 53af6ab5fSopenharmony_ci * You may obtain a copy of the License at 63af6ab5fSopenharmony_ci * 73af6ab5fSopenharmony_ci * http://www.apache.org/licenses/LICENSE-2.0 83af6ab5fSopenharmony_ci * 93af6ab5fSopenharmony_ci * Unless required by applicable law or agreed to in writing, software 103af6ab5fSopenharmony_ci * distributed under the License is distributed on an "AS IS" BASIS, 113af6ab5fSopenharmony_ci * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 123af6ab5fSopenharmony_ci * See the License for the specific language governing permissions and 133af6ab5fSopenharmony_ci * limitations under the License. 143af6ab5fSopenharmony_ci */ 153af6ab5fSopenharmony_ci 163af6ab5fSopenharmony_ciclass C { 173af6ab5fSopenharmony_ci bar(): string { 183af6ab5fSopenharmony_ci return "Class C"; 193af6ab5fSopenharmony_ci } 203af6ab5fSopenharmony_ci} 213af6ab5fSopenharmony_ci 223af6ab5fSopenharmony_cifunction foo(c: Object|null|undefined): string { 233af6ab5fSopenharmony_ci if (c instanceof string) { 243af6ab5fSopenharmony_ci assert(c.length == 11); 253af6ab5fSopenharmony_ci c = "Case 1"; 263af6ab5fSopenharmony_ci } else if (c instanceof C) { 273af6ab5fSopenharmony_ci assert(c.bar() == "Class C") 283af6ab5fSopenharmony_ci c = "Case 2"; 293af6ab5fSopenharmony_ci } else if (c instanceof Int) { 303af6ab5fSopenharmony_ci assert(c * 7 == 49); 313af6ab5fSopenharmony_ci c = "Case 3"; 323af6ab5fSopenharmony_ci } else if (c instanceof null) { 333af6ab5fSopenharmony_ci assert(c == null); 343af6ab5fSopenharmony_ci c = "Case 4"; 353af6ab5fSopenharmony_ci } else { 363af6ab5fSopenharmony_ci c = "Case 5"; 373af6ab5fSopenharmony_ci } 383af6ab5fSopenharmony_ci 393af6ab5fSopenharmony_ci assert(c.length == 6); 403af6ab5fSopenharmony_ci return c; 413af6ab5fSopenharmony_ci} 423af6ab5fSopenharmony_ci 433af6ab5fSopenharmony_ci 443af6ab5fSopenharmony_cifunction main(): void { 453af6ab5fSopenharmony_ci assert(foo("Test string") == "Case 1"); 463af6ab5fSopenharmony_ci assert(foo(new Int(7)) == "Case 3"); 473af6ab5fSopenharmony_ci assert(foo(new C()) == "Case 2"); 483af6ab5fSopenharmony_ci assert(foo(null) == "Case 4"); 493af6ab5fSopenharmony_ci assert(foo(undefined) == "Case 5"); 503af6ab5fSopenharmony_ci assert(foo(new Number(3.0)) == "Case 5"); 513af6ab5fSopenharmony_ci} 52