1 /*
2  * Copyright (c) 2021-2022 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 
16 #ifndef OHOS_SINGLETON_DELEGATOR_H
17 #define OHOS_SINGLETON_DELEGATOR_H
18 
19 #include "singleton_container.h"
20 
21 #define MOCKABLE virtual
22 
23 namespace OHOS {
24 namespace Rosen {
25 template<class T>
26 class SingletonDelegator {
27 public:
SingletonDelegator()28     SingletonDelegator()
29     {
30         nameT = __PRETTY_FUNCTION__;
31         nameT = nameT.substr(nameT.find("T = "));
32         nameT = nameT.substr(sizeof("T ="), nameT.length() - sizeof("T = "));
33         SingletonContainer::GetInstance().SetSingleton(nameT, &T::GetInstance());
34     }
35     ~SingletonDelegator() = default;
36 
37     template<class S>
Dep()38     S& Dep()
39     {
40         std::string nameS = __PRETTY_FUNCTION__;
41         nameS = nameS.substr(nameS.find("S = "));
42         nameS = nameS.substr(sizeof("S ="), nameS.length() - sizeof("S = "));
43 
44         auto ret = SingletonContainer::Get<S>();
45         SingletonContainer::GetInstance().DependOn(nameT, nameS);
46         return ret;
47     }
48 
49 private:
50     std::string nameT;
51 };
52 } // namespace Rosen
53 } // namespace OHOS
54 
55 #endif // FRAMEWORKS_WM_INCLUDE_SINGLETON_DELEGATOR_H
56