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LibJS: Add slot [[PrivateElements]] and related methods to Object

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davidot 2021-10-12 21:44:47 +02:00 • committed by Linus Groh
parent 13ead80ee6
commit d94b5e511f
3 changed files with 124 additions and 0 deletions
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21
Userland/Libraries/LibJS/Runtime/Object.h
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@ -16,6 +16,7 @@
#include <LibJS/Runtime/IndexedProperties.h>
#include <LibJS/Runtime/MarkedValueList.h>
#include <LibJS/Runtime/PrimitiveString.h>
#include <LibJS/Runtime/PrivateEnvironment.h>
#include <LibJS/Runtime/PropertyDescriptor.h>
#include <LibJS/Runtime/PropertyName.h>
#include <LibJS/Runtime/Shape.h>
@ -28,6 +29,18 @@ public: \
using Base = base_class; \
virtual const char* class_name() const override { return #class_; }
struct PrivateElement {
enum class Kind {
Field,
Method,
Accessor
};
PrivateName key;
Kind kind { Kind::Field };
Value value;
};
class Object : public Cell {
public:
static Object* create(GlobalObject&, Object* prototype);
@ -90,6 +103,13 @@ public:
ThrowCompletionOr<MarkedValueList> enumerable_own_property_names(PropertyKind kind) const;
ThrowCompletionOr<Object*> copy_data_properties(Value source, HashTable<PropertyName, PropertyNameTraits> const& seen_names, GlobalObject& global_object);
PrivateElement* private_element_find(PrivateName const& name);
ThrowCompletionOr<void> private_field_add(PrivateName const& name, Value value);
ThrowCompletionOr<void> private_method_or_accessor_add(PrivateElement element);
ThrowCompletionOr<Value> private_get(PrivateName const& name);
ThrowCompletionOr<void> private_set(PrivateName const& name, Value value);
ThrowCompletionOr<void> define_field(Variant<PropertyName, PrivateName> name, ECMAScriptFunctionObject* initializer);
// 10.1 Ordinary Object Internal Methods and Internal Slots, https://tc39.es/ecma262/#sec-ordinary-object-internal-methods-and-internal-slots
virtual ThrowCompletionOr<Object*> internal_get_prototype_of() const;
@ -192,6 +212,7 @@ private:
Shape* m_shape { nullptr };
Vector<Value> m_storage;
IndexedProperties m_indexed_properties;
Vector<PrivateElement> m_private_elements; // [[PrivateElements]]
};
}