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 16class A {} 17class B {} 18 19// Return statement 20function foo(): A { 21 return new B(); 22} 23function bar(): B { 24 return new A(); 25} 26 27// Array literal expression 28const a = new A(); 29const b = new B(); 30const arrA: A[] = [a, b]; 31const arrB: B[] = [a, b]; 32 33// Property declaration 34class C { 35 a: A = new B(); 36 b: B = new A(); 37}