/* * Copyright (c) 2025 Huawei Device Co., Ltd. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ interface I1 extends I2 { foo1():void; } interface I2 extends I1 { foo2():void; } class cls implements I1 { foo1():void {} foo2():void {} } /* @@? 16:11 Error TypeError: Cyclic inheritance involving I1. */