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AK: Define HashMap::take to find and remove a value from the map

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Timothy Flynn 2023-02-02 10:55:50 -05:00 • committed by Linus Groh
parent f31bd190b0
commit 2af7447dfd
2 changed files with 57 additions and 0 deletions
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25
AK/HashMap.h
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@ -199,6 +199,31 @@ public:
m_table.remove(it);
}
Optional<V> take(K const& key)
{
if (auto it = find(key); it != end()) {
auto value = move(it->value);
m_table.remove(it);
return value;
}
return {};
}
template<Concepts::HashCompatible<K> Key>
requires(IsSame<KeyTraits, Traits<K>>) Optional<V> take(Key const& key)
{
if (auto it = find(key); it != end()) {
auto value = move(it->value);
m_table.remove(it);
return value;
}
return {};
}
V& ensure(K const& key)
{
auto it = find(key);