//------------------------------------------------------------------------------
// <copyright file="SingleObjectCollection.cs" company="Microsoft">
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// </copyright>                                                                
//------------------------------------------------------------------------------
 
/*
 * SingleObjectCollection class
 * 
 * Copyright (c) 1999 Microsoft Corporation
 */
 
namespace System.Web.Util {
 
using System.Collections;
 
/*
 * Fast implementation of a collection with a single object
 */
internal class SingleObjectCollection: ICollection {
 
    private class SingleObjectEnumerator: IEnumerator {
        private object _object;
        private bool done;
 
        public SingleObjectEnumerator(object o) { _object = o; }
        public object Current { get { return _object; } }
        public bool MoveNext() {
            if (!done) {
                done = true;
                return true;
            }
 
            return false;
        }
        public void Reset() { done = false; }
    }
 
    private object _object;
 
    public SingleObjectCollection(object o) { _object = o; }
 
    IEnumerator IEnumerable.GetEnumerator() { return new SingleObjectEnumerator(_object); }
    public int Count { get { return 1; } }
    bool ICollection.IsSynchronized { get { return true; } }
    object ICollection.SyncRoot { get { return this; } }
 
    public void CopyTo(Array array, int index) {
        array.SetValue(_object, index);
    }
}
 
}