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/*
* Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021-2022, Linus Groh <linusg@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Optional.h>
#include <AK/StringView.h>
#include <LibJS/Runtime/Object.h>
#include <LibJS/Runtime/PrivateEnvironment.h>
#include <LibJS/Runtime/PropertyKey.h>
namespace JS {
class FunctionObject : public Object {
JS_OBJECT(FunctionObject, Object);
public:
virtual ~FunctionObject() = default;
virtual ThrowCompletionOr<void> initialize(Realm&) override { return {}; }
// Table 7: Additional Essential Internal Methods of Function Objects, https://tc39.es/ecma262/#table-additional-essential-internal-methods-of-function-objects
virtual ThrowCompletionOr<Value> internal_call(Value this_argument, MarkedVector<Value> arguments_list) = 0;
virtual ThrowCompletionOr<NonnullGCPtr<Object>> internal_construct([[maybe_unused]] MarkedVector<Value> arguments_list, [[maybe_unused]] FunctionObject& new_target) { VERIFY_NOT_REACHED(); }
virtual DeprecatedFlyString const& name() const = 0;
void set_function_name(Variant<PropertyKey, PrivateName> const& name_arg, Optional<StringView> const& prefix = {});
void set_function_length(double length);
virtual bool is_strict_mode() const { return false; }
virtual bool has_constructor() const { return false; }
// [[Realm]]
virtual Realm* realm() const { return nullptr; }
protected:
explicit FunctionObject(Realm&, Object* prototype);
explicit FunctionObject(Object& prototype);
private:
virtual bool is_function() const override { return true; }
};
}
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