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LibWeb/IDB: Implement possibly_update_the_key_generator

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stelar7 2025-04-11 11:27:22 +02:00
parent 126e5c8833
commit c2b2994efe
2 changed files with 25 additions and 0 deletions
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24
Libraries/LibWeb/IndexedDB/Internal/Algorithms.cpp
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@ -1228,4 +1228,28 @@ ErrorOr<u64> generate_a_key(GC::Ref<ObjectStore> store)
return key;
}
// https://w3c.github.io/IndexedDB/#possibly-update-the-key-generator
void possibly_update_the_key_generator(GC::Ref<ObjectStore> store, GC::Ref<Key> key)
{
// 1. If the type of key is not number, abort these steps.
if (key->type() != Key::KeyType::Number)
return;
// 2. Let value be the value of key.
auto temp_value = key->value_as_double();
// 3. Set value to the minimum of value and 2^53 (9007199254740992).
temp_value = min(temp_value, 9007199254740992.0);
// 4. Set value to the largest integer not greater than value.
u64 value = floor(temp_value);
// 5. Let generator be store’s key generator.
auto generator = store->key_generator().value();
// 6. If value is greater than or equal to generator’s current number, then set generator’s current number to value + 1.
if (value >= generator.current_number())
generator.set(value + 1);
}
}

1
Libraries/LibWeb/IndexedDB/Internal/Algorithms.h
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@ -37,5 +37,6 @@ void fire_an_error_event(JS::Realm&, GC::Ref<IDBRequest>);
void fire_a_success_event(JS::Realm&, GC::Ref<IDBRequest>);
GC::Ref<IDBRequest> asynchronously_execute_a_request(JS::Realm&, IDBRequestSource, GC::Ref<GC::Function<WebIDL::ExceptionOr<JS::Value>()>>, GC::Ptr<IDBRequest> = nullptr);
ErrorOr<u64> generate_a_key(GC::Ref<ObjectStore>);
void possibly_update_the_key_generator(GC::Ref<ObjectStore>, GC::Ref<Key>);
}