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 SANDBOXED_API_VAR_STRUCT_H_ 16 #define SANDBOXED_API_VAR_STRUCT_H_ 17 18 #include <cstddef> 19 #include <string> 20 #include <utility> 21 22 #include "absl/strings/str_cat.h" 23 #include "sandboxed_api/var_abstract.h" 24 #include "sandboxed_api/var_type.h" 25 26 namespace sapi::v { 27 28 // Class representing a structure. 29 template <class T> 30 class Struct : public Var { 31 public: 32 // Forwarding constructor to initialize the struct_ field. 33 template <typename... Args> Struct(Args &&...args)34 explicit Struct(Args&&... args) : struct_(std::forward<Args>(args)...) { 35 SetLocal(&struct_); 36 } 37 38 Struct(Struct&& other) = default; 39 Struct& operator=(Struct&& other) = default; 40 GetSize()41 size_t GetSize() const final { return sizeof(T); } GetType()42 Type GetType() const final { return Type::kStruct; } GetTypeString()43 std::string GetTypeString() const final { return "Structure"; } ToString()44 std::string ToString() const final { 45 return absl::StrCat("Structure of size: ", sizeof(struct_)); 46 } 47 data()48 const T& data() const { return struct_; } mutable_data()49 T* mutable_data() { return &struct_; } 50 51 protected: 52 friend class LenVal; 53 54 T struct_; 55 }; 56 57 } // namespace sapi::v 58 59 #endif // SANDBOXED_API_VAR_STRUCT_H_ 60