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/genericTypeWithMultipleBases3.ts === 20declare function AssertType(value:any, type:string):void; 21interface IA<T> { 22 23foo(x: T): T; 24 25} 26 27interface IB<T> { 28 29bar(x: T): T; 30 31} 32 33interface IC<T> extends IA<T>, IB<T> { } 34 35let c: IC<number>; 36AssertType(c, "IC<number>"); 37 38let x = c.foo; 39AssertType(x, "(number) => number"); 40AssertType(c.foo, "(number) => number"); 41 42let y = c.bar; 43AssertType(y, "(number) => number"); 44AssertType(c.bar, "(number) => number"); 45 46 47