public Terminator <TReduction> Complete(TReduction reduction)
{
var terminator = Next.Complete(reduction);
var terminated = CheckTermination(terminator);
return(Reduction(terminator.Value, terminated: terminated));
}
/// <summary>
/// Pulls values from the supplied TextReader and passes them into the supplied reducer.
/// </summary>
/// <typeparam name="TReduction">The type of the reduction.</typeparam>
/// <param name="reader">The reader.</param>
/// <param name="reduction">The reduction.</param>
/// <param name="reducer">The reducer.</param>
/// <returns>A wrapped reduction.</returns>
public static Terminator <TReduction> Reduce <TReduction>(
this TextReader reader,
TReduction reduction,
IReducer <TReduction, string> reducer)
{
var terminator = Terminator.Reduction(reduction);
for (var value = reader.ReadLine(); value != null; value = reader.ReadLine())
{
terminator = reducer.Invoke(terminator.Value, value);
if (terminator.IsTerminated)
{
return(terminator);
}
}
return(reducer.Complete(reduction));
}
/// <summary>
/// Passes elements from an IEnumerable into the supplied reducer.
/// </summary>
/// <typeparam name="TInput">The type of the input.</typeparam>
/// <typeparam name="TReduction">The type of the reduction.</typeparam>
/// <param name="input">The input.</param>
/// <param name="reduction">The reduction.</param>
/// <param name="reducer">The reducer.</param>
/// <returns>A terminated reduction.</returns>
public static Terminator <TReduction> Reduce <TInput, TReduction>(
this IEnumerable <TInput> input,
TReduction reduction,
IReducer <TReduction, TInput> reducer)
{
var terminator = Terminator.Reduction(reduction);
foreach (var value in input)
{
terminator = reducer.Invoke(terminator.Value, value);
if (terminator.IsTerminated)
{
return(terminator);
}
}
return(reducer.Complete(terminator.Value));
}
public Terminator <Reduction> Complete(Reduction reduction) => next.Complete(reduction);
public Terminator <TReduction> Complete(TReduction reduction) => Next.Complete(reduction);
public Task <Terminator <TReduction> > CompleteAsync(TReduction reduction) => Task.FromResult(Reducer.Complete(reduction));
