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/***************************************************************************************************
Copyright (C) 2025 The Qt Company Ltd.
SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
***************************************************************************************************/
using System.Collections;
using System.Collections.Concurrent;
namespace Qt.DotNet.Utils.Collections.Concurrent
{
public class ConcurrentSet<T> : IEnumerable<T>
{
private ConcurrentDictionary<T, bool> Items { get; } = new();
public ConcurrentSet(IEqualityComparer<T> comparer = null)
{
Items = new ConcurrentDictionary<T, bool>(comparer ?? EqualityComparer<T>.Default);
}
public bool Add(T item) => Items.TryAdd(item, true);
public bool Remove(T item) => Items.TryRemove(item, out _);
public bool Contains(T item) => Items.ContainsKey(item);
public IEnumerator<T> GetEnumerator() => Items.Keys.GetEnumerator();
IEnumerator IEnumerable.GetEnumerator() => Items.Keys.GetEnumerator();
}
}
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