/*

 * Copyright (c) 2021, Andreas Kling <kling@serenityos.org>

 *

 * SPDX-License-Identifier: BSD-2-Clause

 */

#pragma once

#include <LibJS/Runtime/Completion.h>

#include <LibJS/Runtime/Environment.h>

#include <LibJS/Runtime/Object.h>

namespace JS {

class ArgumentsObject final : public Object {

    JS_OBJECT(ArgumentsObject, Object);

    JS_DECLARE_ALLOCATOR(ArgumentsObject);

public:

    virtual void initialize(Realm&) override;

    virtual ~ArgumentsObject() override = default;

    Environment& environment() { return m_environment; }

    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<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;

    // [[ParameterMap]]

    Object& parameter_map() { return *m_parameter_map; }

private:

    ArgumentsObject(Realm&, Environment&);

    virtual void visit_edges(Cell::Visitor&) override;

    NonnullGCPtr<Environment> m_environment;

    GCPtr<Object> m_parameter_map;

};

}