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AK: Make HashMap::try_ensure work with a fallible construction callback

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Co-authored-by: Timothy Flynn <trflynn89@pm.me>
This commit is contained in:
Nico Weber 2023-01-23 19:22:31 -05:00 • committed by Linus Groh
parent 2f4a83215c
commit 44de4d163b
1 changed files with 7 additions and 2 deletions
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5
AK/HashMap.h
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@ -228,8 +228,13 @@ public:
auto it = find(key); auto it = find(key);
if (it != end()) if (it != end())
return it->value; return it->value;
if constexpr (FallibleFunction<Callback>) {
auto result = TRY(try_set(key, TRY(initialization_callback())));
VERIFY(result == HashSetResult::InsertedNewEntry);
} else {
auto result = TRY(try_set(key, initialization_callback())); auto result = TRY(try_set(key, initialization_callback()));
VERIFY(result == HashSetResult::InsertedNewEntry); VERIFY(result == HashSetResult::InsertedNewEntry);
}
return find(key)->value; return find(key)->value;
} }