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 {} 17interface J {} 18interface K {} 19class A {} 20class B extends A implements I, J {} 21class C extends B {} 22class D extends C {} 23 24function foo(x: I): string { 25 return "I"; 26} 27function foo(x: J): string { 28 return "J"; 29} 30 31function main(): int { 32 let d : string = foo(new D()); 33 return 0; 34} 35 36 37/* @@? 32:22 Error TypeError: Call to `foo` is ambiguous as `2` versions of `foo` are available: `foo(x: I): String` and `foo(x: J): String` */ 38