/* * 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); public: static ProxyObject* create(GlobalObject&, Object& target, Object& handler); ProxyObject(Object& target, Object& handler, Object& prototype); virtual ~ProxyObject() override; virtual const FlyString& name() const override; virtual bool has_constructor() const override; const Object& target() const { return m_target; } const Object& 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) const override; virtual ThrowCompletionOr<bool> internal_set(PropertyKey const&, Value value, Value receiver) override; virtual ThrowCompletionOr<bool> internal_delete(PropertyKey const&) override; virtual ThrowCompletionOr<MarkedValueList> internal_own_property_keys() const override; virtual ThrowCompletionOr<Value> internal_call(Value this_argument, MarkedValueList arguments_list) override; virtual ThrowCompletionOr<Object*> internal_construct(MarkedValueList arguments_list, FunctionObject& new_target) override; private: 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; } Object& m_target; Object& m_handler; bool m_is_revoked { false }; }; template<> inline bool Object::fast_is<ProxyObject>() const { return is_proxy_object(); } }