tdlight/tdutils/td/utils/Destructor.h

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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2020
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#pragma once
#include "td/utils/common.h"
#include <memory>
#include <utility>
namespace td {
class Destructor {
public:
Destructor() = default;
Destructor(const Destructor &other) = delete;
Destructor &operator=(const Destructor &other) = delete;
Destructor(Destructor &&other) = default;
Destructor &operator=(Destructor &&other) = default;
virtual ~Destructor() = default;
};
template <class F>
class LambdaDestructor : public Destructor {
public:
explicit LambdaDestructor(F &&f) : f_(std::move(f)) {
}
LambdaDestructor(const LambdaDestructor &other) = delete;
LambdaDestructor &operator=(const LambdaDestructor &other) = delete;
LambdaDestructor(LambdaDestructor &&other) = default;
LambdaDestructor &operator=(LambdaDestructor &&other) = default;
~LambdaDestructor() override {
f_();
}
private:
F f_;
};
template <class F>
auto create_destructor(F &&f) {
return make_unique<LambdaDestructor<F>>(std::forward<F>(f));
}
template <class F>
auto create_shared_destructor(F &&f) {
return std::make_shared<LambdaDestructor<F>>(std::forward<F>(f));
}
} // namespace td