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Viewing changes to external/nrefactory/ICSharpCode.NRefactory/Utils/EmptyList.cs

  • Committer: Package Import Robot
  • Author(s): Jo Shields
  • Date: 2013-05-12 09:46:03 UTC
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20130512094603-mad323bzcxvmcam0
Tags: upstream-4.0.5+dfsg
Import upstream version 4.0.5+dfsg

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external/nrefactory/ICSharpCode.NRefactory/Utils/EmptyList.cs
 
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// Copyright (c) 2010-2013 AlphaSierraPapa for the SharpDevelop Team
 
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// 
 
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this
 
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// software and associated documentation files (the "Software"), to deal in the Software
 
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// without restriction, including without limitation the rights to use, copy, modify, merge,
 
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
 
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// to whom the Software is furnished to do so, subject to the following conditions:
 
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// 
 
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// The above copyright notice and this permission notice shall be included in all copies or
 
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// substantial portions of the Software.
 
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// 
 
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
 
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
 
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// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 
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// DEALINGS IN THE SOFTWARE.
 
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using System;
 
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using System.Collections;
 
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using System.Collections.Generic;
 
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using System.Collections.ObjectModel;
 
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namespace ICSharpCode.NRefactory
 
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{
 
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        [Serializable]
 
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        public sealed class EmptyList<T> : IList<T>, IEnumerator<T>
 
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                #if NET_4_5
 
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                , IReadOnlyList<T>
 
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                #endif
 
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        {
 
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                public static readonly EmptyList<T> Instance = new EmptyList<T>();
 
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                private EmptyList() {}
 
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                public T this[int index] {
 
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                        get { throw new ArgumentOutOfRangeException("index"); }
 
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                        set { throw new ArgumentOutOfRangeException("index"); }
 
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                }
 
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                public int Count {
 
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                        get { return 0; }
 
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                }
 
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                bool ICollection<T>.IsReadOnly {
 
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                        get { return true; }
 
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                }
 
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                int IList<T>.IndexOf(T item)
 
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                {
 
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                        return -1;
 
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                }
 
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                void IList<T>.Insert(int index, T item)
 
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                {
 
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                        throw new NotSupportedException();
 
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                }
 
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                void IList<T>.RemoveAt(int index)
 
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                {
 
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                        throw new NotSupportedException();
 
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                }
 
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                void ICollection<T>.Add(T item)
 
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                {
 
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                        throw new NotSupportedException();
 
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                }
 
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                void ICollection<T>.Clear()
 
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                {
 
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                }
 
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                bool ICollection<T>.Contains(T item)
 
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                {
 
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                        return false;
 
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                }
 
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                void ICollection<T>.CopyTo(T[] array, int arrayIndex)
 
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                {
 
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                }
 
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                bool ICollection<T>.Remove(T item)
 
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                {
 
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                        return false;
 
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                }
 
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                IEnumerator<T> IEnumerable<T>.GetEnumerator()
 
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                {
 
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                        return this;
 
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                }
 
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                System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
 
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                {
 
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                        return this;
 
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                }
 
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                T IEnumerator<T>.Current {
 
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                        get { return default(T); }
 
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                }
 
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                object IEnumerator.Current {
 
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                        get { return default(T); }
 
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                }
 
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                void IDisposable.Dispose()
 
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                {
 
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                }
 
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                bool IEnumerator.MoveNext()
 
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                {
 
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                        return false;
 
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                }
 
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                void IEnumerator.Reset()
 
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                {
 
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                }
 
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        }
 
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}