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LibJS+LibWeb: Return Vector<PropertyKey> from internal_own_property_keys

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By doing that we avoid lots of `PropertyKey` -> `Value` -> `PropertyKey`
transforms, which are quite expensive because of underlying
`FlyString` -> `PrimitiveString` -> `FlyString` conversions.

10% improvement on MicroBench/object-keys.js
This commit is contained in:
Aliaksandr Kalenik 2025-05-14 15:39:48 +03:00 • committed by Alexander Kalenik
commit 5ee810f772
Notes: github-actions[bot] 2025-05-15 18:13:23 +00:00
24 changed files with 134 additions and 155 deletions
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2
Libraries/LibWeb/Bindings/PlatformObject.h
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@ -40,7 +40,7 @@ public:
virtual JS::ThrowCompletionOr<bool> internal_define_own_property(JS::PropertyKey const&, JS::PropertyDescriptor const&, Optional<JS::PropertyDescriptor>* precomputed_get_own_property = nullptr) override;
virtual JS::ThrowCompletionOr<bool> internal_delete(JS::PropertyKey const&) override;
virtual JS::ThrowCompletionOr<bool> internal_prevent_extensions() override;
virtual JS::ThrowCompletionOr<GC::RootVector<JS::Value>> internal_own_property_keys() const override;
virtual JS::ThrowCompletionOr<Vector<JS::PropertyKey>> internal_own_property_keys() const override;
JS::ThrowCompletionOr<bool> is_named_property_exposed_on_object(JS::PropertyKey const&) const;