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using System;
using System.Collections.Generic;
namespace Org.BouncyCastle.Utilities.Collections
{
internal abstract class ReadOnlySet<T>
: ISet<T>
{
System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
{
return GetEnumerator();
}
public bool IsReadOnly => true;
void ICollection<T>.Add(T item) => throw new NotSupportedException();
public bool Add(T item) => throw new NotSupportedException();
public void Clear() => throw new NotSupportedException();
public void ExceptWith(IEnumerable<T> other) => throw new NotSupportedException();
public void IntersectWith(IEnumerable<T> other) => throw new NotSupportedException();
public bool Remove(T item) => throw new NotSupportedException();
public bool SetEquals(IEnumerable<T> other) => throw new NotSupportedException();
public void SymmetricExceptWith(IEnumerable<T> other) => throw new NotSupportedException();
public void UnionWith(IEnumerable<T> other) => throw new NotSupportedException();
public abstract bool Contains(T item);
public abstract void CopyTo(T[] array, int arrayIndex);
public abstract int Count { get; }
public abstract IEnumerator<T> GetEnumerator();
public abstract bool IsProperSubsetOf(IEnumerable<T> other);
public abstract bool IsProperSupersetOf(IEnumerable<T> other);
public abstract bool IsSubsetOf(IEnumerable<T> other);
public abstract bool IsSupersetOf(IEnumerable<T> other);
public abstract bool Overlaps(IEnumerable<T> other);
}
internal class ReadOnlySetProxy<T>
: ReadOnlySet<T>
{
private readonly ISet<T> m_target;
internal ReadOnlySetProxy(ISet<T> target)
{
if (target == null)
throw new ArgumentNullException(nameof(target));
m_target = target;
}
public override bool Contains(T item) => m_target.Contains(item);
public override void CopyTo(T[] array, int arrayIndex) => m_target.CopyTo(array, arrayIndex);
public override int Count => m_target.Count;
public override IEnumerator<T> GetEnumerator() => m_target.GetEnumerator();
public override bool IsProperSubsetOf(IEnumerable<T> other) => m_target.IsProperSubsetOf(other);
public override bool IsProperSupersetOf(IEnumerable<T> other) => m_target.IsProperSupersetOf(other);
public override bool IsSubsetOf(IEnumerable<T> other) => m_target.IsSubsetOf(other);
public override bool IsSupersetOf(IEnumerable<T> other) => m_target.IsSupersetOf(other);
public override bool Overlaps(IEnumerable<T> other) => m_target.Overlaps(other);
}
}
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