1 | // Copyright 2019 Google LLC |
2 | // |
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 | // https://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 | #ifndef dap_typeinfo_h |
16 | #define dap_typeinfo_h |
17 | |
18 | #include <functional> |
19 | #include <string> |
20 | |
21 | namespace dap { |
22 | |
23 | class any; |
24 | class Deserializer; |
25 | class Serializer; |
26 | |
27 | // The TypeInfo interface provides basic runtime type information about DAP |
28 | // types. TypeInfo is used by the serialization system to encode and decode DAP |
29 | // requests, responses, events and structs. |
30 | struct TypeInfo { |
31 | virtual ~TypeInfo(); |
32 | virtual std::string name() const = 0; |
33 | virtual size_t size() const = 0; |
34 | virtual size_t alignment() const = 0; |
35 | virtual void construct(void*) const = 0; |
36 | virtual void copyConstruct(void* dst, const void* src) const = 0; |
37 | virtual void destruct(void*) const = 0; |
38 | virtual bool deserialize(const Deserializer*, void*) const = 0; |
39 | virtual bool serialize(Serializer*, const void*) const = 0; |
40 | |
41 | // create() allocates and constructs the TypeInfo of type T, registers the |
42 | // pointer for deletion on cppdap library termination, and returns the pointer |
43 | // to T. |
44 | template <typename T, typename... ARGS> |
45 | static T* create(ARGS&&... args) { |
46 | auto typeinfo = new T(std::forward<ARGS>(args)...); |
47 | deleteOnExit(typeinfo); |
48 | return typeinfo; |
49 | } |
50 | |
51 | private: |
52 | // deleteOnExit() ensures that the TypeInfo is destructed and deleted on |
53 | // library termination. |
54 | static void deleteOnExit(TypeInfo*); |
55 | }; |
56 | |
57 | } // namespace dap |
58 | |
59 | #endif // dap_typeinfo_h |
60 | |