/// <summary>
/// Throws an <see cref="ArgumentNullException" /> if <paramref name="guardClause.Value" /> is null.
/// Throws an <see cref="ArgumentException" /> if <paramref name="guardClause.Value" /> is an empty enumerable.
/// </summary>
/// <param name="guardClause"></param>
/// <param name="parameterName"></param>
/// <returns><paramref name="guardClause" /> if the value is not an empty enumerable or null.</returns>
/// <exception cref="ArgumentNullException"></exception>
/// <exception cref="ArgumentException"></exception>
public static IGuard <IEnumerable <T> > AgainstNullOrEmpty <T>([NotNull, JetBrainsNotNull] this IGuard <IEnumerable <T> > guardClause, [NotNull, JetBrainsNotNull] string parameterName)
{
guardClause.AgainstNull(parameterName);
if (!guardClause.Value.Any())
{
throw new ArgumentException($"Required input {parameterName} was empty.", parameterName);
}
return(guardClause);
}
/// <summary>
/// Throws an <see cref="ArgumentNullException" /> if <paramref name="guardClause.Value" /> is null.
/// Throws an <see cref="ArgumentException" /> if <paramref name="guardClause.Value" /> is an empty string.
/// </summary>
/// <param name="guardClause"></param>
/// <param name="parameterName"></param>
/// <returns><paramref name="guardClause" /> if the value is not an empty string or null.</returns>
/// <exception cref="ArgumentNullException"></exception>
/// <exception cref="ArgumentException"></exception>
public static IGuard <string> AgainstNullOrEmpty([NotNull, JetBrainsNotNull] this IGuard <string> guardClause, [NotNull, JetBrainsNotNull] string parameterName)
{
guardClause.AgainstNull(parameterName);
if (guardClause.Value == string.Empty)
{
throw new ArgumentException($"Required input {parameterName} was empty.", parameterName);
}
return(guardClause);
}
/// <summary>
/// Throws an <see cref="ArgumentNullException" /> if <paramref name="guardClause.Value" /> is null.
/// Throws an <see cref="ArgumentException" /> if <paramref name="guardClause.Value" /> is an empty guid.
/// </summary>
/// <param name="guardClause"></param>
/// <param name="parameterName"></param>
/// <returns><paramref name="guardClause" /> if the value is not an empty guid or null.</returns>
/// <exception cref="ArgumentNullException"></exception>
/// <exception cref="ArgumentException"></exception>
public static IGuard <Guid> AgainstNullOrEmpty([NotNull, JetBrainsNotNull] this IGuard <Guid?> guardClause, [NotNull, JetBrainsNotNull] string parameterName)
{
guardClause.AgainstNull(parameterName);
return(Guard.WithValue(guardClause.Value !.Value).AgainstEmpty(parameterName));
}