public static TPublishedBy SetPublishedBy <TPublishedBy, TPublishedTime>
(this IPublication <TPublishedBy, TPublishedTime> publication,
Func <TPublishedBy, TPublishedBy> newPublishedByFactory)
where TPublishedBy : IEquatable <TPublishedBy>
where TPublishedTime : struct
{
publication.NotNull(nameof(publication));
return(publication.PublishedBy = newPublishedByFactory.Invoke(publication.PublishedBy));
}
/// <summary>
/// 异步获取发表者。
/// </summary>
/// <typeparam name="TPublishedBy">指定的发表者类型。</typeparam>
/// <typeparam name="TPublishedTime">指定的发表时间类型（兼容 <see cref="DateTime"/> 或 <see cref="DateTimeOffset"/>）。</typeparam>
/// <param name="publication">给定的 <see cref="IPublication{TPublishedBy, TPublishedTime}"/>。</param>
/// <param name="newPublishedByFactory">给定的新发表者工厂方法。</param>
/// <param name="cancellationToken">给定的 <see cref="CancellationToken"/>（可选）。</param>
/// <returns>返回一个包含 <typeparamref name="TPublishedBy"/>（兼容标识或字符串）的异步操作。</returns>
public static ValueTask <TPublishedBy> SetPublishedByAsync <TPublishedBy, TPublishedTime>(
this IPublication <TPublishedBy, TPublishedTime> publication, Func <TPublishedBy, TPublishedBy> newPublishedByFactory,
CancellationToken cancellationToken = default)
where TPublishedBy : IEquatable <TPublishedBy>
where TPublishedTime : struct
{
publication.NotNull(nameof(publication));
return(cancellationToken.RunOrCancelValueAsync(()
=> publication.PublishedBy = newPublishedByFactory.Invoke(publication.PublishedBy)));
}