ladybird/Libraries/LibJS/Runtime/ProxyObject.h
Shannon Booth f87041bf3a LibGC+Everywhere: Factor out a LibGC from LibJS
Resulting in a massive rename across almost everywhere! Alongside the
namespace change, we now have the following names:

 * JS::NonnullGCPtr -> GC::Ref
 * JS::GCPtr -> GC::Ptr
 * JS::HeapFunction -> GC::Function
 * JS::CellImpl -> GC::Cell
 * JS::Handle -> GC::Root
2024-11-15 14:49:20 +01:00

65 lines
2.9 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);
GC_DECLARE_ALLOCATOR(ProxyObject);
public:
static GC::Ref<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&, Optional<PropertyDescriptor>* precomputed_get_own_property = nullptr) 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<GC::MarkedVector<Value>> internal_own_property_keys() const override;
virtual ThrowCompletionOr<Value> internal_call(Value this_argument, ReadonlySpan<Value> arguments_list) override;
virtual ThrowCompletionOr<GC::Ref<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; }
GC::Ref<Object> m_target;
GC::Ref<Object> m_handler;
bool m_is_revoked { false };
};
template<>
inline bool Object::fast_is<ProxyObject>() const { return is_proxy_object(); }
}