13af6ab5fSopenharmony_ci/* 23af6ab5fSopenharmony_ci * Copyright (c) 2024 Huawei Device Co., Ltd. 33af6ab5fSopenharmony_ci * Licensed under the Apache License, Version 2.0 (the "License"); 43af6ab5fSopenharmony_ci * you may not use this file except in compliance with the License. 53af6ab5fSopenharmony_ci * You may obtain a copy of the License at 63af6ab5fSopenharmony_ci * 73af6ab5fSopenharmony_ci * http://www.apache.org/licenses/LICENSE-2.0 83af6ab5fSopenharmony_ci * 93af6ab5fSopenharmony_ci * Unless required by applicable law or agreed to in writing, software 103af6ab5fSopenharmony_ci * distributed under the License is distributed on an "AS IS" BASIS, 113af6ab5fSopenharmony_ci * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 123af6ab5fSopenharmony_ci * See the License for the specific language governing permissions and 133af6ab5fSopenharmony_ci * limitations under the License. 143af6ab5fSopenharmony_ci */ 153af6ab5fSopenharmony_ci 163af6ab5fSopenharmony_ciinterface MutableState<Value> {} 173af6ab5fSopenharmony_ci 183af6ab5fSopenharmony_ciclass StateImpl<Value> implements MutableState<Value> {} 193af6ab5fSopenharmony_ci 203af6ab5fSopenharmony_ciinterface StateManager { 213af6ab5fSopenharmony_ci foo<Value>(equivalent?: ValueTracker<Value>, tracker?: ValueTracker<Value>): MutableState<Value> 223af6ab5fSopenharmony_ci} 233af6ab5fSopenharmony_ci 243af6ab5fSopenharmony_ciinterface ValueTracker<Value> {} 253af6ab5fSopenharmony_ci 263af6ab5fSopenharmony_ciclass StateManagerImpl implements StateManager { 273af6ab5fSopenharmony_ci foo<Value>( equivalent?:ValueTracker<Value>, tracker?:ValueTracker<Value>): StateImpl<Value> { 283af6ab5fSopenharmony_ci return new StateImpl<Value>() 293af6ab5fSopenharmony_ci } 303af6ab5fSopenharmony_ci} 31