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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Assertions.h>
#include <AK/Function.h>
#include <AK/Vector.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/Object.h>
namespace JS {
class Array : public Object {
JS_OBJECT(Array, Object);
public:
static Array* create(GlobalObject&, size_t length, Object* prototype = nullptr);
static Array* create_from(GlobalObject&, Vector<Value> const&);
// Non-standard but equivalent to CreateArrayFromList.
template<typename T>
static Array* create_from(GlobalObject& global_object, Vector<T>& elements, Function<Value(T&)> map_fn)
{
auto& vm = global_object.vm();
auto values = MarkedValueList { global_object.heap() };
values.ensure_capacity(elements.size());
for (auto& element : elements) {
values.append(map_fn(element));
VERIFY(!vm.exception());
}
return Array::create_from(global_object, values);
}
explicit Array(Object& prototype);
virtual ~Array() override;
virtual Optional<PropertyDescriptor> internal_get_own_property(PropertyName const&) const override;
virtual bool internal_define_own_property(PropertyName const&, PropertyDescriptor const&) override;
virtual bool internal_delete(PropertyName const&) override;
virtual MarkedValueList internal_own_property_keys() const override;
[[nodiscard]] bool length_is_writable() const { return m_length_writable; };
private:
bool set_length(PropertyDescriptor const&);
bool m_length_writable { true };
};
}
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