mirror of
https://github.com/XRPLF/clio.git
synced 2026-04-29 15:37:53 +00:00
79 lines
2.3 KiB
C++
79 lines
2.3 KiB
C++
//------------------------------------------------------------------------------
|
|
/*
|
|
This file is part of clio: https://github.com/XRPLF/clio
|
|
Copyright (c) 2025, the clio developers.
|
|
|
|
Permission to use, copy, modify, and distribute this software for any
|
|
purpose with or without fee is hereby granted, provided that the above
|
|
copyright notice and this permission notice appear in all copies.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
//==============================================================================
|
|
|
|
#pragma once
|
|
|
|
#include <utility>
|
|
|
|
namespace util {
|
|
|
|
/**
|
|
* @brief A base-class that can be used to check whether the current instance was moved from
|
|
*/
|
|
class MoveTracker {
|
|
bool wasMoved_ = false;
|
|
|
|
protected:
|
|
/**
|
|
* @brief The function to be used by clients in order to check whether the instance was moved from
|
|
* @return true if moved from; false otherwise
|
|
*/
|
|
[[nodiscard]] bool
|
|
wasMoved() const noexcept
|
|
{
|
|
return wasMoved_;
|
|
}
|
|
|
|
MoveTracker() = default; // should only be used via inheritance
|
|
|
|
public:
|
|
virtual ~MoveTracker() = default;
|
|
|
|
/**
|
|
* @brief Move constructor sets the moved-from state on `other` and resets the state on `this`
|
|
* @param other The moved-from object
|
|
*/
|
|
MoveTracker(MoveTracker&& other)
|
|
{
|
|
*this = std::move(other);
|
|
}
|
|
|
|
/**
|
|
* @brief Move operator sets the moved-from state on `other` and resets the state on `this`
|
|
* @param other The moved-from object
|
|
* @return Reference to self
|
|
*/
|
|
MoveTracker&
|
|
operator=(MoveTracker&& other)
|
|
{
|
|
if (this != &other) {
|
|
other.wasMoved_ = true;
|
|
wasMoved_ = false;
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
MoveTracker(MoveTracker const&) = default;
|
|
MoveTracker&
|
|
operator=(MoveTracker const&) = default;
|
|
};
|
|
|
|
} // namespace util
|