sandboxed-api/sandboxed_api/var_struct.h

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// Copyright 2019 Google LLC. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SANDBOXED_API_VAR_STRUCT_H_
#define SANDBOXED_API_VAR_STRUCT_H_
#include <memory>
#include "absl/base/macros.h"
#include "absl/strings/str_cat.h"
#include "sandboxed_api/var_pointable.h"
#include "sandboxed_api/var_ptr.h"
namespace sapi::v {
// Class representing a structure.
template <class T>
class Struct : public Var, public Pointable {
public:
// Forwarding constructor to initalize the struct_ field.
template <typename... Args>
explicit Struct(Args&&... args) : struct_(std::forward<Args>(args)...) {
SetLocal(&struct_);
}
size_t GetSize() const final { return sizeof(struct_); }
Type GetType() const final { return Type::kStruct; }
std::string GetTypeString() const final { return "Structure"; }
std::string ToString() const final {
return absl::StrCat("Structure of size: ", sizeof(struct_));
}
const T& data() const { return struct_; }
T* mutable_data() { return &struct_; }
Ptr* CreatePtr(Pointable::SyncType type) override {
return new Ptr(this, type);
}
protected:
T struct_;
friend class LenVal;
};
} // namespace sapi::v
#endif // SANDBOXED_API_VAR_STRUCT_H_