1/* 2* Copyright (c) Microsoft Corporation. All rights reserved. 3* Copyright (c) 2023 Huawei Device Co., Ltd. 4* Licensed under the Apache License, Version 2.0 (the "License"); 5* you may not use this file except in compliance with the License. 6* You may obtain a copy of the License at 7* 8* http://www.apache.org/licenses/LICENSE-2.0 9* 10* Unless required by applicable law or agreed to in writing, software 11* distributed under the License is distributed on an "AS IS" BASIS, 12* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13* See the License for the specific language governing permissions and 14* limitations under the License. 15* 16* This file has been modified by Huawei to verify type inference by adding verification statements. 17*/ 18 19// === tests/cases/compiler/unionTypeWithRecursiveSubtypeReduction1.ts === 20declare function AssertType(value:any, type:string):void; 21class Module { 22 public members: Class[]; 23} 24 25class Namespace { 26 public members: (Class | Property)[]; 27} 28 29class Class { 30 public parent: Namespace; 31} 32 33class Property { 34 public parent: Module | Class; 35} 36 37let t: Class | Property; 38AssertType(t, "union"); 39 40t.parent; 41AssertType(t.parent, "union"); 42 43 44