mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-22 23:50:19 +00:00
493a04d5fe
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.
65 lines
2.8 KiB
C++
65 lines
2.8 KiB
C++
/*
|
|
* Copyright (c) 2020, Matthew Olsson <mattco@serenityos.org>
|
|
* Copyright (c) 2021, Linus Groh <linusg@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <LibJS/Runtime/Completion.h>
|
|
#include <LibJS/Runtime/FunctionObject.h>
|
|
|
|
namespace JS {
|
|
|
|
class ProxyObject final : public FunctionObject {
|
|
JS_OBJECT(ProxyObject, FunctionObject);
|
|
JS_DECLARE_ALLOCATOR(ProxyObject);
|
|
|
|
public:
|
|
static NonnullGCPtr<ProxyObject> create(Realm&, Object& target, Object& handler);
|
|
|
|
virtual ~ProxyObject() override = default;
|
|
|
|
virtual DeprecatedFlyString const& name() const override;
|
|
virtual bool has_constructor() const override;
|
|
|
|
Object const& target() const { return m_target; }
|
|
Object const& handler() const { return m_handler; }
|
|
|
|
bool is_revoked() const { return m_is_revoked; }
|
|
void revoke() { m_is_revoked = true; }
|
|
|
|
// 10.5 Proxy Object Internal Methods and Internal Slots, https://tc39.es/ecma262/#sec-proxy-object-internal-methods-and-internal-slots
|
|
|
|
virtual ThrowCompletionOr<Object*> internal_get_prototype_of() const override;
|
|
virtual ThrowCompletionOr<bool> internal_set_prototype_of(Object* prototype) override;
|
|
virtual ThrowCompletionOr<bool> internal_is_extensible() const override;
|
|
virtual ThrowCompletionOr<bool> internal_prevent_extensions() override;
|
|
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, CacheablePropertyMetadata*, PropertyLookupPhase) const override;
|
|
virtual ThrowCompletionOr<bool> internal_set(PropertyKey const&, Value value, Value receiver, CacheablePropertyMetadata*) override;
|
|
virtual ThrowCompletionOr<bool> internal_delete(PropertyKey const&) override;
|
|
virtual ThrowCompletionOr<MarkedVector<Value>> internal_own_property_keys() const override;
|
|
virtual ThrowCompletionOr<Value> internal_call(Value this_argument, ReadonlySpan<Value> arguments_list) override;
|
|
virtual ThrowCompletionOr<NonnullGCPtr<Object>> internal_construct(ReadonlySpan<Value> arguments_list, FunctionObject& new_target) override;
|
|
|
|
private:
|
|
ProxyObject(Object& target, Object& handler, Object& prototype);
|
|
|
|
virtual void visit_edges(Visitor&) override;
|
|
|
|
virtual bool is_function() const override { return m_target->is_function(); }
|
|
virtual bool is_proxy_object() const final { return true; }
|
|
|
|
NonnullGCPtr<Object> m_target;
|
|
NonnullGCPtr<Object> m_handler;
|
|
bool m_is_revoked { false };
|
|
};
|
|
|
|
template<>
|
|
inline bool Object::fast_is<ProxyObject>() const { return is_proxy_object(); }
|
|
|
|
}
|