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LibJS: Don't use Handle<Value> for JS::Object private fields

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There's no reason to use handles here, we can just mark private element
values from objects that store them.
This commit is contained in:
Andreas Kling 2023-12-09 11:05:25 +01:00
parent 6a4e3d9002
commit 463931384d
4 changed files with 22 additions and 14 deletions
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19
Userland/Libraries/LibJS/Runtime/Object.cpp
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@ -519,7 +519,7 @@ ThrowCompletionOr<void> Object::private_field_add(PrivateName const& name, Value
m_private_elements = make<Vector<PrivateElement>>();
// 4. Append PrivateElement { [[Key]]: P, [[Kind]]: field, [[Value]]: value } to O.[[PrivateElements]].
m_private_elements->empend(name, PrivateElement::Kind::Field, make_handle(value));
m_private_elements->empend(name, PrivateElement::Kind::Field, value);
// 5. Return unused.
return {};
@ -570,14 +570,14 @@ ThrowCompletionOr<Value> Object::private_get(PrivateName const& name)
// 3. If entry.[[Kind]] is either field or method, then
if (entry->kind != PrivateElement::Kind::Accessor) {
// a. Return entry.[[Value]].
return value.value();
return value;
}
// Assert: entry.[[Kind]] is accessor.
VERIFY(value.value().is_accessor());
VERIFY(value.is_accessor());
// 6. Let getter be entry.[[Get]].
auto* getter = value.value().as_accessor().getter();
auto* getter = value.as_accessor().getter();
// 5. If entry.[[Get]] is undefined, throw a TypeError exception.
if (!getter)
@ -602,7 +602,7 @@ ThrowCompletionOr<void> Object::private_set(PrivateName const& name, Value value
// 3. If entry.[[Kind]] is field, then
if (entry->kind == PrivateElement::Kind::Field) {
// a. Set entry.[[Value]] to value.
entry->value = make_handle(value);
entry->value = value;
return {};
}
// 4. Else if entry.[[Kind]] is method, then
@ -617,10 +617,10 @@ ThrowCompletionOr<void> Object::private_set(PrivateName const& name, Value value
VERIFY(entry->kind == PrivateElement::Kind::Accessor);
auto& accessor = entry->value;
VERIFY(accessor.value().is_accessor());
VERIFY(accessor.is_accessor());
// c. Let setter be entry.[[Set]].
auto* setter = accessor.value().as_accessor().setter();
auto* setter = accessor.as_accessor().setter();
// b. If entry.[[Set]] is undefined, throw a TypeError exception.
if (!setter)
@ -1386,6 +1386,11 @@ void Object::visit_edges(Cell::Visitor& visitor)
m_indexed_properties.for_each_value([&visitor](auto& value) {
visitor.visit(value);
});
if (m_private_elements) {
for (auto& private_element : *m_private_elements)
visitor.visit(private_element.value);
}
}
// 7.1.1.1 OrdinaryToPrimitive ( O, hint ), https://tc39.es/ecma262/#sec-ordinarytoprimitive