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/*
* 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 FunctionEnvironment* new_function_environment(Object* new_target) override;
virtual bool has_constructor() const override { return true; }
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(PropertyName const&) const override;
virtual ThrowCompletionOr<bool> internal_define_own_property(PropertyName const&, PropertyDescriptor const&) override;
virtual ThrowCompletionOr<bool> internal_has_property(PropertyName const&) const override;
virtual ThrowCompletionOr<Value> internal_get(PropertyName const&, Value receiver) const override;
virtual ThrowCompletionOr<bool> internal_set(PropertyName const&, Value value, Value receiver) override;
virtual ThrowCompletionOr<bool> internal_delete(PropertyName 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(); }
}
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