1/** 2 * Copyright (c) 2023-2024 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 16interface I { 17 fn(): int; 18} 19 20interface I2 extends I { 21 fn(): float; 22} 23 24/* @@? 21:5 Error TypeError: fn(): float in I2 cannot override fn(): int in I because overriding return type is not compatible with the other return type. */ 25/* @@? 21:5 Error TypeError: Method fn(): float in I2 not overriding any method */ 26