SquirrelJME/SquirrelJME

// -*- Mode: Java; indent-tabs-mode: t; tab-width: 4 -*-
// ---------------------------------------------------------------------------
// SquirrelJME
//     Copyright (C) Stephanie Gawroriski <xer@multiphasicapps.net>
// ---------------------------------------------------------------------------
// SquirrelJME is under the Mozilla Public License Version 2.0.
// See license.mkd for licensing and copyright information.
// ---------------------------------------------------------------------------

package cc.squirreljme.runtime.cldc.util;

import java.util.List;
import java.util.RandomAccess;

/**
 * General utilities for collections.
 *
 * @since 2021/02/25
 */
public final class CollectionUtils
{
    /**
     * Not used.
     * 
     * @since 2021/02/25
     */
    private CollectionUtils()
    {
    }
    
    /**
     * Wraps the given character list as an integer list.
     * 
     * @param __chars The character list to wrap.
     * @return The resultant integer list.
     * @throws NullPointerException On null arguments.
     * @since 2021/02/25
     */
    public static List<Integer> asIntegerList(List<Character> __chars)
        throws NullPointerException
    {
        if (__chars == null)
            throw new NullPointerException("NARG");
        
        if (__chars instanceof RandomAccess)
            return new __CharacterIntegerListRandom__(__chars);
        return new __CharacterIntegerListSequential__(__chars);
    }
}