using System;

namespace JD.Core
{
    /// <summary>
    /// Helper to manipulate disposable objects.
    /// </summary>
    public static class Disposable
    {
        public static IDisposable FromAction(Action action)
        {
            return new DisposableHelper(action);
        }

        private class DisposableHelper : IDisposable
        {
            private Action _action;

            public DisposableHelper(Action action)
            {
                _action = action;
            }

            public void Dispose()
            {
                var action = _action;
                _action = null;
                action?.Invoke();
            }
        }
    }
}