Read-Only List View

ReadOnlyListView.cs

[Serializable]
[DebuggerDisplay("Count = {Count}")]
public struct ReadOnlyListView<T> : IReadOnlyList<T>
{
	static readonly List<T> EmptyList = new List<T>();

	public static ReadOnlyListView<T> Empty => new ReadOnlyListView<T>(EmptyList);

	readonly List<T> list;

	public ReadOnlyListView(List<T> list)
	{
		Contract.Requires(list != null);

		this.list = list;
	}

	public int Count => this.list.Count;

	public T this[int index] => this.list[index];

	public bool Contains(T value) => this.list.Contains(value);

	public void CopyTo(T[] array, int index) => this.list.CopyTo(array, index);

	public List<T>.Enumerator GetEnumerator() => this.list.GetEnumerator();

	IEnumerator<T> IEnumerable<T>.GetEnumerator() => ((IEnumerable<T>)this.list).GetEnumerator();

	public int IndexOf(T value) => this.list.IndexOf(value);

	IEnumerator IEnumerable.GetEnumerator() => ((IEnumerable)this.list).GetEnumerator();
}