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LibJS: Make Object::internal_get() reveal the used property offset

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This function now takes an optional out parameter for callers who would
like to what kind of property we ended up getting.

This will be used to implement inline caching for property lookups.

Also, to prepare for adding more forms of caching, the out parameter
is a struct CacheablePropertyMetadata rather than just an offset. :^)
This commit is contained in:
Andreas Kling 2023-07-08 17:39:18 +02:00
parent babe924da1
commit 52cd671163
19 changed files with 58 additions and 28 deletions
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Userland/Libraries/LibJS/Runtime/ModuleNamespaceObject.h
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@ -25,7 +25,7 @@ public:
virtual ThrowCompletionOr<Optional<PropertyDescriptor>> internal_get_own_property(PropertyKey const&) const override;
virtual ThrowCompletionOr<bool> internal_define_own_property(PropertyKey const&, PropertyDescriptor const&) override;
virtual ThrowCompletionOr<bool> internal_has_property(PropertyKey const&) const override;
virtual ThrowCompletionOr<Value> internal_get(PropertyKey const&, Value receiver) const override;
virtual ThrowCompletionOr<Value> internal_get(PropertyKey const&, Value receiver, CacheablePropertyMetadata* = nullptr) const override;
virtual ThrowCompletionOr<bool> internal_set(PropertyKey const&, Value value, Value receiver) override;
virtual ThrowCompletionOr<bool> internal_delete(PropertyKey const&) override;
virtual ThrowCompletionOr<MarkedVector<Value>> internal_own_property_keys() const override;