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ReadOnlyOrderedSet.cs
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ReadOnlyOrderedSet.cs
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using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
namespace NMF.Collections.Generic
{
/// <summary>
/// Denotes a readonly ordered set view
/// </summary>
/// <typeparam name="T"></typeparam>
[DebuggerDisplay("Count = {Count}"), DebuggerTypeProxy(typeof(EnumerableDebuggerProxy<>))]
public class ReadOnlyOrderedSet<T> : ISet<T>, ICollection<T>, IList<T>, IList, ICollection, IEnumerable<T>, IEnumerable, IOrderedSet<T>
{
/// <summary>
/// Creates a new instance
/// </summary>
/// <param name="parent">The ordered set of which to create a view</param>
/// <exception cref="ArgumentNullException">Thrown if parent is null</exception>
public ReadOnlyOrderedSet(OrderedSet<T> parent)
{
if (parent == null) throw new ArgumentNullException(nameof(parent));
this.parent = parent;
}
private readonly OrderedSet<T> parent;
/// <inheritdoc />
public bool Add(T item)
{
throw new InvalidOperationException("This collection is read-only and must not be modified");
}
/// <inheritdoc />
public void ExceptWith(IEnumerable<T> other)
{
throw new InvalidOperationException("This collection is read-only and must not be modified");
}
/// <inheritdoc />
public void IntersectWith(IEnumerable<T> other)
{
throw new InvalidOperationException("This collection is read-only and must not be modified");
}
/// <inheritdoc />
public bool IsProperSubsetOf(IEnumerable<T> other)
{
return parent.IsProperSubsetOf(other);
}
/// <inheritdoc />
public bool IsProperSupersetOf(IEnumerable<T> other)
{
return parent.IsProperSupersetOf(other);
}
/// <inheritdoc />
public bool IsSubsetOf(IEnumerable<T> other)
{
return parent.IsSubsetOf(other);
}
/// <inheritdoc />
public bool IsSupersetOf(IEnumerable<T> other)
{
return parent.IsSupersetOf(other);
}
/// <inheritdoc />
public bool Overlaps(IEnumerable<T> other)
{
return parent.Overlaps(other);
}
/// <inheritdoc />
public bool SetEquals(IEnumerable<T> other)
{
return parent.SetEquals(other);
}
/// <inheritdoc />
public void SymmetricExceptWith(IEnumerable<T> other)
{
throw new InvalidOperationException("This collection is read-only and must not be modified");
}
/// <inheritdoc />
public void UnionWith(IEnumerable<T> other)
{
throw new InvalidOperationException("This collection is read-only and must not be modified");
}
void ICollection<T>.Add(T item)
{
throw new InvalidOperationException("This collection is read-only and must not be modified");
}
/// <inheritdoc />
public void Clear()
{
throw new InvalidOperationException("This collection is read-only and must not be modified");
}
/// <inheritdoc />
public bool Contains(T item)
{
return parent.Contains(item);
}
/// <inheritdoc />
public void CopyTo(T[] array, int arrayIndex)
{
parent.CopyTo(array, arrayIndex);
}
/// <inheritdoc />
public int Count
{
get { return parent.Count; }
}
/// <inheritdoc />
public bool IsReadOnly
{
get { return true; }
}
/// <inheritdoc />
public bool Remove(T item)
{
throw new InvalidOperationException("This collection is read-only and must not be modified");
}
/// <inheritdoc />
public IEnumerator<T> GetEnumerator()
{
return parent.GetEnumerator();
}
IEnumerator IEnumerable.GetEnumerator()
{
return parent.GetEnumerator();
}
/// <inheritdoc />
public int IndexOf(T item)
{
return parent.IndexOf(item);
}
/// <inheritdoc />
public void Insert(int index, T item)
{
throw new InvalidOperationException("This collection is read-only and must not be modified");
}
/// <inheritdoc />
public void RemoveAt(int index)
{
throw new InvalidOperationException("This collection is read-only and must not be modified");
}
/// <inheritdoc />
public T this[int index]
{
get
{
return parent[index];
}
set
{
throw new InvalidOperationException("This collection is read-only and must not be modified");
}
}
/// <inheritdoc />
public int Add(object value)
{
throw new InvalidOperationException("This collection is read-only and must not be modified");
}
/// <inheritdoc />
public bool Contains(object value)
{
return parent.Contains((T)value);
}
/// <inheritdoc />
public int IndexOf(object value)
{
return parent.IndexOf((T)value);
}
/// <inheritdoc />
public void Insert(int index, object value)
{
throw new InvalidOperationException("This collection is read-only and must not be modified");
}
/// <inheritdoc />
public bool IsFixedSize
{
get { return false; }
}
/// <inheritdoc />
public void Remove(object value)
{
throw new InvalidOperationException("This collection is read-only and must not be modified");
}
object IList.this[int index]
{
get
{
return parent[index];
}
set
{
throw new InvalidOperationException("This collection is read-only and must not be modified");
}
}
/// <inheritdoc />
public void CopyTo(Array array, int index)
{
((ICollection)parent).CopyTo(array, index);
}
/// <inheritdoc />
public bool IsSynchronized
{
get { return ((ICollection)parent).IsSynchronized; }
}
/// <inheritdoc />
public object SyncRoot
{
get { return ((ICollection)parent).SyncRoot; }
}
}
}