public static IEnumerable <Noeud?> Arbres(params string[] factoryNames) { var arbres = Enumerable.Empty <Noeud?>(); foreach (var factoryName in factoryNames) { arbres = arbres.Concat(MethodByName(factoryName)()); } return(arbres); }
public static Noeud?Arbre(string factoryName, int i) { return(MethodByName(factoryName)().ElementAt(i - 1)); }