/// <summary>
/// Add an additional validation step to the decoder.
/// </summary>
public static Decoder <TRaw, T2> ChainValidation <TRaw, T1, T2>(
this Decoder <TRaw, T1> decoder,
[NotNull] Func <T1, Either <string, T2> > f)
{
if (f == null)
{
throw new ArgumentNullException(nameof(f));
}
return(decoder.Bind(x =>
new Decoder <TRaw, T2>((id, data) =>
f(x).MapLeft(msg => DecoderErrors.Single(id, msg)))));
}
/***********************************************/
/* Methods
* /***********************************************/
/// <summary>
/// Create a collection of DecoderErrors that contains the errors
/// in this collection and the errors in b
/// </summary>
public DecoderErrors Append(DecoderErrors b)
{
return(new DecoderErrors(this.Errors.Concat(b.Errors)));
}