// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence. // See the LICENCE file in the repository root for full licence text. using System.Collections.Generic; namespace osu.Game.Extensions { public static class CollectionExtensions { public static void AddRange<T>(this ICollection<T> collection, IEnumerable<T> items) { // List<T> has a potentially more optimal path to adding a range. if (collection is List<T> list) list.AddRange(items); else { foreach (T obj in items) collection.Add(obj); } } } }