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diff --git a/src/base/immer-utils.hpp b/src/base/immer-utils.hpp
index bc70d99..e180738 100644
--- a/src/base/immer-utils.hpp
+++ b/src/base/immer-utils.hpp
@@ -1,61 +1,61 @@
/*
* This file is part of libkazv.
* SPDX-FileCopyrightText: 2020-2021 Tusooa Zhu <tusooa@kazv.moe>
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
#pragma once
#include "libkazv-config.hpp"
#include <tuple>
namespace Kazv
{
template<class T>
[[nodiscard]] auto getIn(T &&item)
{
return std::forward<T>(item);
}
template<class ImmerT, class K, class ...Keys>
[[nodiscard]] auto getIn(ImmerT &&container, K &&key, Keys &&...keys)
{
return getIn(std::forward<ImmerT>(container)[std::forward<K>(key)], std::forward<Keys>(keys)...);
}
template<class T>
[[nodiscard]] auto setIn(T, T newVal)
{
return newVal;
}
template<class ImmerT, class K>
[[nodiscard]] auto setIn(ImmerT container, std::decay_t<decltype(getIn(std::declval<ImmerT>(), std::declval<K>()))> newVal, K &&key) -> std::decay_t<ImmerT>
{
return std::move(container).set(std::forward<K>(key), std::move(newVal));
}
template<class ImmerT, class K, class ...Keys>
[[nodiscard]] auto setIn(ImmerT container, std::decay_t<decltype(getIn(std::declval<ImmerT>(), std::declval<K>(), std::declval<Keys>()...))> newVal, K &&key, Keys &&...keys) -> std::decay_t<ImmerT>
{
auto oldItem = getIn(container, key);
return std::move(container).set(
std::forward<K>(key),
setIn(oldItem, std::move(newVal), std::forward<Keys>(keys)...)
);
}
template<class T, class Func>
[[nodiscard]] auto updateIn(T oldVal, Func func) -> T
{
return std::move(func)(oldVal);
}
template<class ImmerT, class Func, class ...Keys>
[[nodiscard]] auto updateIn(ImmerT container, Func func, Keys &&...keys) -> ImmerT
{
auto oldVal = getIn(container, keys...);
auto newVal = std::move(func)(std::move(oldVal));
- return setIn(container, std::move(newVal), std::forward<Keys>(keys)...);
+ return setIn(std::move(container), std::move(newVal), std::forward<Keys>(keys)...);
}
}

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