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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
parent 3945e1a82a
commit 493a04d5fe
17 changed files with 34 additions and 28 deletions
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Userland/Libraries/LibWeb/HTML/WindowProxy.cpp
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@@ -153,7 +153,7 @@ JS::ThrowCompletionOr<bool> WindowProxy::internal_define_own_property(JS::Proper
}
// 7.4.7 [[Get]] ( P, Receiver ), https://html.spec.whatwg.org/multipage/window-object.html#windowproxy-get
JS::ThrowCompletionOr<JS::Value> WindowProxy::internal_get(JS::PropertyKey const& property_key, JS::Value receiver, JS::CacheablePropertyMetadata*) const
JS::ThrowCompletionOr<JS::Value> WindowProxy::internal_get(JS::PropertyKey const& property_key, JS::Value receiver, JS::CacheablePropertyMetadata*, PropertyLookupPhase) const
{
auto& vm = this->vm();