Deferred execution sample

deferred.cs

/// <summary>
/// Disposable static functions
/// </summary>
public static class Disposable
{
    /// <inheritdoc />
    /// <summary>
    /// Create new deferred context
    /// </summary>
    public readonly struct Deferred(Action action) : IDisposable
    {
        /// <inheritdoc />
        public void Dispose() => action?.Invoke();
    }

    /// <inheritdoc />
    /// <summary>
    /// Create new deferred context
    /// </summary>
    public readonly struct DeferredValueTask(Func<ValueTask> action) : IAsyncDisposable
    {
        /// <inheritdoc />
        public async ValueTask DisposeAsync()
        {
            // ReSharper disable once ConditionIsAlwaysTrueOrFalseAccordingToNullableAPIContract
            if (action is not null)
                await action();
        }
    }

    /// <inheritdoc />
    /// <summary>
    /// Create new deferred context
    /// </summary>
    public readonly struct DeferredTask(Func<Task> action) : IAsyncDisposable
    {
        /// <inheritdoc />
        public async ValueTask DisposeAsync()
        {
            // ReSharper disable once ConditionIsAlwaysTrueOrFalseAccordingToNullableAPIContract
            if (action is not null)
                await action();
        }
    }

    /// <summary>
    /// Defer action execution with Dispose
    /// </summary>
    public static Deferred Defer(Action action) => new(action);

    /// <summary>
    /// Defer async action execution with DisposeAsync
    /// </summary>
    public static DeferredValueTask Defer(Func<ValueTask> action) => new(action);

    /// <summary>
    /// Defer async action execution with DisposeAsync
    /// </summary>
    public static DeferredTask Defer(Func<Task> action) => new(action);
}