private sealed class DisposableAction()

in TeamCity.VSTest.TestLogger/Disposable.cs [32:51]

• 17 lines of code
• 5 McCabe index (conditional complexity)

    private sealed class DisposableAction(Action action, object? key = null) : IDisposable
    {
        private readonly object _key = key ?? action;
        private int _counter;

        public void Dispose()
        {
            if (Interlocked.Increment(ref _counter) != 1) return;
            action();
        }

        public override bool Equals(object? obj)
        {
            if (ReferenceEquals(null, obj)) return false;
            if (ReferenceEquals(this, obj)) return true;
            return obj is DisposableAction other && Equals(_key, other._key);
        }

        public override int GetHashCode() => _key.GetHashCode();
    }