public void MoveNext()
{
this.CharsConsumed += this.charsConsumed;
var codePoint = CodePoint.DecodeFromUtf16At(this.source, this.CharsConsumed, out this.charsConsumed);
this.CurrentType = CodePoint.GetGraphemeClusterClass(codePoint);
}
/// <summary>
/// Advances the enumerator to the next element of the collection.
/// </summary>
/// <returns>
/// <see langword="true"/> if the enumerator was successfully advanced to the next element;
/// <see langword="false"/> if the enumerator has passed the end of the collection.
/// </returns>
public bool MoveNext()
{
this.Current = CodePoint.DecodeFromUtf16At(this.source, 0, out int consumed);
this.source = this.source.Slice(consumed);
return(consumed > 0);
}