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_API_NUMBER_H
17 #define META_API_NUMBER_H
18 
19 #include <meta/base/interface_traits.h>
20 #include <meta/interface/detail/any.h>
21 #include <meta/interface/intf_object_registry.h>
22 
23 META_BEGIN_NAMESPACE()
24 
25 template<typename T>
26 using EnableIfBasicType =
27     BASE_NS::enable_if_t<!IsSharedOrWeakPtr_v<T> && !BASE_NS::is_convertible_v<BASE_NS::remove_const_t<T&>, IAny&>>;
28 
29 REGISTER_CLASS(Number, "751c6067-4fb8-404b-a240-4fa6f32c725a", ObjectCategoryBits::NO_CATEGORY)
30 
31 class Number {
32 public:
Number()33     Number() : number_(META_NS::GetObjectRegistry().Create<IAny>(META_NS::ClassId::Number)) {}
34 
35     template<typename T, typename = EnableIfBasicType<T>>
Number(T t)36     Number(T t) : Number()
37     {
38         if constexpr (is_enum_v<T>) {
39             number_->SetValue(static_cast<BASE_NS::underlying_type_t<T>>(t));
40         } else {
41             number_->SetValue(t);
42         }
43     }
44 
Number(IAny::ConstPtr any)45     Number(IAny::ConstPtr any) : Number()
46     {
47         number_->CopyFrom(*any);
48     }
49 
Number(const IAny & any)50     Number(const IAny& any) : Number()
51     {
52         number_->CopyFrom(any);
53     }
54 
55     template<typename T, typename = EnableIfBasicType<T>>
56     Number& operator=(T t)
57     {
58         if constexpr (is_enum_v<T>) {
59             number_->SetValue(static_cast<BASE_NS::underlying_type_t<T>>(t));
60         } else {
61             number_->SetValue(t);
62         }
63         return *this;
64     }
65 
66     Number& operator=(IAny::ConstPtr any)
67     {
68         number_->CopyFrom(*any);
69         return *this;
70     }
71 
72     Number& operator=(const IAny& any)
73     {
74         number_->CopyFrom(any);
75         return *this;
76     }
77 
78     template<typename T>
Get()79     T Get() const
80     {
81         T t;
82         if constexpr (is_enum_v<T>) {
83             BASE_NS::underlying_type_t<T> ut;
84             number_->GetValue(ut);
85             t = static_cast<T>(ut);
86         } else {
87             number_->GetValue(t);
88         }
89         return t;
90     }
91 
92 private:
93     IAny::Ptr number_;
94 };
95 
96 META_END_NAMESPACE()
97 
98 #endif
99