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