/// <summary>
/// Adds match predicate.
/// </summary>
/// <param name="validatorSelector">Validator selector.</param>
/// <returns>New rule instance.</returns>
public FluentValidationRule MatchesValidator(Func <IPropertyValidator, bool> validatorSelector)
{
var matches = Matches.Append(validatorSelector).ToArray();
return(new FluentValidationRule(Name, matches, Apply));
}