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diff --git a/src/base/json-utils.hpp b/src/base/json-utils.hpp
index 65e9de7..dae2f53 100644
--- a/src/base/json-utils.hpp
+++ b/src/base/json-utils.hpp
@@ -1,49 +1,49 @@
/*
* This file is part of libkazv.
* SPDX-FileCopyrightText: 2020-2023 tusooa <tusooa@kazv.moe>
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
#pragma once
#include "libkazv-config.hpp"
#include <optional>
#include <functional>
#include <nlohmann/json.hpp>
namespace Kazv
{
template<class Jsonish, class Key, class Func>
bool hasAtThat(Jsonish &&j, Key &&k, Func &&f)
{
return j.contains(k)
&& std::invoke(std::forward<Func>(f), std::forward<Jsonish>(j)[std::forward<Key>(k)]);
}
// https://spec.matrix.org/v1.8/client-server-api/#conditions-1
// non-compound canonical JSON values: strings, integers in the range of [-(2**53)+1, (2**53)-1], booleans, and null.
inline bool isNonCompoundCanonicalJsonValue(const nlohmann::json &j)
{
return j.is_string()
|| (j.is_number_integer()
&& j.template get<long long>() <= 9007199254740991LL
&& j.template get<long long>() >= -9007199254740991LL)
|| j.is_boolean()
|| j.is_null();
}
template<class Jsonish, class RangeT>
std::optional<std::decay_t<Jsonish>> getInJson(Jsonish &&j, RangeT &&path, std::size_t index = 0)
{
if (index >= path.size()) {
- return std::forward<Jsonish>(j);
+ return std::optional<std::decay_t<Jsonish>>(std::forward<Jsonish>(j));
}
auto currentSegment = path[index];
if (j.is_object() && j.contains(currentSegment)) {
return getInJson(std::forward<Jsonish>(j)[currentSegment], std::forward<RangeT>(path), index + 1);
}
return std::nullopt;
}
}

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