1 /* 2 * Copyright (c) 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 16 #ifndef META_EXT_MINIMAL_OBJECT_H 17 #define META_EXT_MINIMAL_OBJECT_H 18 19 #include <base/util/uid_util.h> 20 21 #include <meta/base/namespace.h> 22 #include <meta/interface/interface_helpers.h> 23 #include <meta/interface/intf_lifecycle.h> 24 #include <meta/interface/intf_object.h> 25 #include <meta/interface/intf_object_flags.h> 26 #include <meta/interface/intf_static_metadata.h> 27 META_BEGIN_NAMESPACE()28META_BEGIN_NAMESPACE() 29 30 class MinimalObject : public IntroduceInterfaces<IObject, IObjectFlags, IStaticMetadata> { 31 public: 32 MinimalObject() : flags_(ObjectFlagBits::DEFAULT_FLAGS) {} 33 MinimalObject(const ObjectFlagBitsValue& value) : flags_(value) {} 34 35 BASE_NS::string GetName() const override 36 { 37 return GetClassId().ToString(); 38 } 39 40 ObjectFlagBitsValue GetObjectFlags() const override 41 { 42 return flags_; 43 } 44 45 void SetObjectFlags(const ObjectFlagBitsValue& value) override 46 { 47 flags_ = value; 48 } 49 50 ObjectFlagBitsValue GetObjectDefaultFlags() const override 51 { 52 return ObjectFlagBits::DEFAULT_FLAGS; 53 } 54 55 // this allows to use the same macros for minimal objects too 56 inline static const nullptr_t STATIC_METADATA {}; 57 static const StaticObjectMetadata* StaticMetadata() 58 { 59 return nullptr; 60 } 61 const StaticObjectMetadata* GetStaticMetadata() const override 62 { 63 return StaticMetadata(); 64 } 65 66 private: 67 ObjectFlagBitsValue flags_ {}; 68 }; 69 70 META_END_NAMESPACE() 71 72 #endif 73