private IEnumerable <TFactor> Convert(TStep step, int level) { foreach (var r in _source.Converter(step, level)) { yield return(_selector(r, level)); } }
private IEnumerable <TFactor> Convert(TStep step, int level) { foreach (var s in _source.Converter(step, level)) { foreach (var c in _collectionSelector(s, level)) { yield return(_factorSelector(s, c)); } } }