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/unionOfEnumInference.ts === 20declare function AssertType(value:any, type:string):void; 21// Repro from #42932 22 23enum Enum { A, B, C } 24 25interface Interface<T extends Enum> { 26 type: T; 27} 28 29function foo<T extends Enum>(x: Interface<T>) { } 30 31function bar(x: Interface<Enum.A | Enum.B> | Interface<Enum.C>) { 32 foo(x); 33AssertType(foo(x), "void"); 34AssertType(foo, "<T extends Enum>(Interface<T>) => void"); 35AssertType(x, "union"); 36} 37 38 39