/// <summary>
/// Immediately ends and executes the pipeline function and returns the output.
/// </summary>
/// <param name="pipeline">The pipeline link.</param>
/// <param name="input">The input to the pipeline function.</param>
/// <returns>The output of the pipeline function.</returns>
public static TOut Run <TOut, TFirst>(this IPipelineLink <TOut, TFirst> pipeline, TFirst input)
{
if (pipeline is null)
{
throw new ArgumentNullException(nameof(pipeline));
}
var func = pipeline.End();
return(func.Invoke(input));
}
/// <summary>
/// Ends the pipeline chain and returns the pipeline function.
/// </summary>
/// <returns>The pipeline function as an awaitable Task.</returns>
public static Func <TFirst, Task <TIn> > EndAsync <TIn, TFirst>(this IPipelineLink <TIn, TFirst> pipeline)
{
if (pipeline is null)
{
throw new ArgumentNullException(nameof(pipeline));
}
var func = pipeline.End();
return(input => Task.FromResult(func.Invoke(input)));
}
/// <summary>
/// Inserts another pipeline into the current pipeline.
/// </summary>
/// <param name="pipeline">The pipeline link.</param>
/// <param name="other">The pipeline to insert.</param>
public static IPipelineLink <TOut, TFirst> Insert <TIn, TOut, TFirst>(this IPipelineLink <TIn, TFirst> pipeline,
IPipelineLink <TOut, TIn> other)
{
if (pipeline is null)
{
throw new ArgumentNullException(nameof(pipeline));
}
if (other is null)
{
throw new ArgumentNullException(nameof(other));
}
var otherFunc = other.End();
return(pipeline.Next(otherFunc));
}