public static void Validate <T>([AssertionCondition(AssertionConditionType.IS_NOT_NULL)][CanBeNull][ValidatedNotNull][NoEnumeration]
this T value, [InvokerParameterName][NotNull] string argumentName, ObjectIs argumentValidationType) where T : class
{
if (ReferenceEquals(value, null) && ((argumentValidationType & ObjectIs.NotNull) == ObjectIs.NotNull))
{
throw new ArgumentNullException(argumentName, ErrorMessages.ArgumentNull(argumentName));
}
}
public static T[] Validate <T>([ItemCanBeNull][AssertionCondition(AssertionConditionType.IS_NOT_NULL)][ValidatedNotNull]
this IEnumerable <T> argumentValue, [NotNull][InvokerParameterName] string argumentName, ObjectIs argumentValidation, ObjectIs elementValidation)
where T : class
{
/*
* We should test "validation", but that would be an expensive thing to do for something that could be
* called very frequently.
*/
var isNull = ReferenceEquals(argumentValue, null);
if (isNull)
{
if (argumentValidation.HasFlag(ObjectIs.NotNull))
{
var normalizedArgumentName = string.IsNullOrWhiteSpace(argumentName) ? Exceptions.Fragment_UnknownArgument : argumentName;
throw new ArgumentNullException(normalizedArgumentName,
string.Format(CultureInfo.CurrentCulture, Exceptions.Validate_ArgumentIsNull, normalizedArgumentName));
}
return(Array.Empty <T>());
}
var checkElements = elementValidation.HasFlag(ObjectIs.NotNull);
var index = 0;
var elements = new List <T>();
foreach (var element in argumentValue)
{
if (checkElements && ReferenceEquals(element, null))
{
var normalizedArgumentName = string.Concat(string.IsNullOrWhiteSpace(argumentName) ? Exceptions.Fragment_UnknownArgument : argumentName,
"[", index.ToString(@"D", CultureInfo.InvariantCulture), @"]");
throw new ArgumentException(string.Format(CultureInfo.CurrentCulture, Exceptions.Validate_ArgumentIsNull, normalizedArgumentName),
normalizedArgumentName);
}
++index;
elements.Add(element);
}
Contract.EndContractBlock();
return(elements.ToArray());
}
public static T[] Validate <T>([AssertionCondition(AssertionConditionType.IS_NOT_NULL)][CanBeNull][ValidatedNotNull]
this IEnumerable <T> values, [InvokerParameterName][NotNull] string argumentName, ObjectIs argumentValidationType,
ElementIs elementValidationType) where T : class
{
if (ReferenceEquals(values, null))
{
if ((argumentValidationType & ObjectIs.NotNull) == ObjectIs.NotNull)
{
throw new ArgumentNullException(argumentName, ErrorMessages.ArgumentNull(argumentName));
}
return(new T[0]);
}
if ((elementValidationType & ElementIs.NotNull) != ElementIs.NotNull)
{
return(values.ToArray());
}
var results = values.ToArray();
for (var n = 0; n < results.Length; ++n)
{
if (ReferenceEquals(results[n], null))
{
throw new ArgumentException($@"Item {n} in '{argumentName}' is null.", argumentName);
}
}
return(results);
}
public static void Validate <T>([AssertionCondition(AssertionConditionType.IS_NOT_NULL)][NoEnumeration][ValidatedNotNull]
this T argumentValue, [NotNull][InvokerParameterName] string argumentName, ObjectIs validation) where T : class
{
/*
* We should test "validation", but that would be an expensive thing to do for something that could be
* called very frequently.
*/
var isNull = ReferenceEquals(argumentValue, null);
if (validation.HasFlag(ObjectIs.NotNull) && isNull)
{
var normalizedArgumentName = string.IsNullOrWhiteSpace(argumentName) ? Exceptions.Fragment_UnknownArgument : argumentName;
throw new ArgumentNullException(normalizedArgumentName,
string.Format(CultureInfo.CurrentCulture, Exceptions.Validate_ArgumentIsNull, normalizedArgumentName));
}
Contract.EndContractBlock();
}