/*

 * Copyright (c) 2020-2024, Andreas Kling <andreas@ladybird.org>

 * Copyright (c) 2020-2023, the SerenityOS developers.

 *

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

 */

#pragma once

#include <AK/Types.h>

#include <LibJS/Forward.h>

namespace JS {

class HeapBase {

    AK_MAKE_NONCOPYABLE(HeapBase);

    AK_MAKE_NONMOVABLE(HeapBase);

public:

    VM& vm() { return m_vm; }

protected:

    HeapBase(VM& vm)

        : m_vm(vm)

    {

    }

    VM& m_vm;

};

class HeapBlockBase {

    AK_MAKE_NONMOVABLE(HeapBlockBase);

    AK_MAKE_NONCOPYABLE(HeapBlockBase);

public:

    static size_t block_size;

    static HeapBlockBase* from_cell(Cell const* cell)

    {

        return reinterpret_cast<HeapBlockBase*>(bit_cast<FlatPtr>(cell) & ~(HeapBlockBase::block_size - 1));

    }

    Heap& heap() { return m_heap; }

protected:

    HeapBlockBase(Heap& heap)

        : m_heap(heap)

    {

    }

    Heap& m_heap;

};

}