1/* 2 * Copyright (c) 2024-2025 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 */ 15class A<T extends A<T>>{} 16class D extends A<D>{} 17class B extends A<B>{} 18class T<P extends B|D>{} 19class C extends A/* @@ label */<B|D|C>{} 20/* Constraint: B|D|C <: A<B|D|C>, but B is not a subtype of A<B> due to T invariance */ 21 22/* @@@ label Error TypeError: Type B|D|C is not assignable to constraint type A<B|D|C> */ 23