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LibJS: Add PropertyLookupPhase enum to distinguish Object [[Get]] calls

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We can now tell the difference between an own property access and a
subsequent (automatic) prototype chain access.

This will be used to implement caching of prototype chain accesses.
This commit is contained in:
Andreas Kling 2024-05-02 11:13:08 +02:00
commit 493a04d5fe
Notes: sideshowbarker 2024-07-17 23:07:41 +09:00
17 changed files with 34 additions and 28 deletions
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6
Userland/Libraries/LibJS/Runtime/Object.h
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@ -138,7 +138,11 @@ public:
virtual ThrowCompletionOr<Optional<PropertyDescriptor>> internal_get_own_property(PropertyKey const&) const;
virtual ThrowCompletionOr<bool> internal_define_own_property(PropertyKey const&, PropertyDescriptor const&);
virtual ThrowCompletionOr<bool> internal_has_property(PropertyKey const&) const;
virtual ThrowCompletionOr<Value> internal_get(PropertyKey const&, Value receiver, CacheablePropertyMetadata* = nullptr) const;
enum class PropertyLookupPhase {
OwnProperty,
PrototypeChain,
};
virtual ThrowCompletionOr<Value> internal_get(PropertyKey const&, Value receiver, CacheablePropertyMetadata* = nullptr, PropertyLookupPhase = PropertyLookupPhase::OwnProperty) const;
virtual ThrowCompletionOr<bool> internal_set(PropertyKey const&, Value value, Value receiver, CacheablePropertyMetadata* = nullptr);
virtual ThrowCompletionOr<bool> internal_delete(PropertyKey const&);
virtual ThrowCompletionOr<MarkedVector<Value>> internal_own_property_keys() const;