private Terminator <TReduction> EachReducer(
TReduction reduction,
Func <TReduction, IReducer <TReduction, TInput>, Terminator <TReduction> > func)
{
return(Reducers.Reduce(Reduction(reduction),
Reducer.Make <Terminator <TReduction>, IReducer <TReduction, TInput> >((terminator, reducer) =>
{
terminator = func(terminator.Value, reducer);
return Reduction(terminator, terminated: terminator.IsTerminated);
})).Value);
}
/// <summary>
/// Returns a reducer that writes the input to a TextWriter line-by-line.
/// </summary>
/// <returns>A reducer</returns>
public static IReducer <TextWriter, object> WriteLineReducer() =>
Reducer.Make <TextWriter, object>((writer, input) =>
{
writer.WriteLine(input);
return(writer);
});
/// <summary>
/// A reducer for adding elements to an IList.
/// </summary>
/// <typeparam name="TResult">The type of the values in the IList.</typeparam>
/// <returns>An IReducer that pushes values to an IList.</returns>
public static IReducer <IList <TResult>, TResult> ListReducer <TResult>() =>
Reducer.Make <IList <TResult>, TResult>((list, val) =>
{
list.Add(val);
return(list);
});
public static IReducer <T, T> Checked <T>() where T : struct => Accumulating.Checked <T>().Apply(Reducer.Make <T, T>((acc, val) => val));