private static NewInstancePredicate NewInstance(TypeUsage instanceType, IEnumerable <Predicate> arguments)
{
PredicateList validArguments;
var expectedTypes = GetStructuralMemberTypes(instanceType);
var pos = 0;
bool allowEmpty = false;
var validatedElements = new List <Predicate>();
int expectedElementCount = expectedTypes.Count;
bool checkCount = (expectedElementCount != -1);
var checkNull = (default(Predicate) == null);
foreach (var elementIn in arguments)
{
if (checkCount && pos == expectedElementCount)
{
throw new ArgumentException();
}
if (checkNull && elementIn == null)
{
throw new ArgumentNullException();
}
validatedElements.Add(elementIn);
pos++;
}
if (checkCount)
{
if (pos != expectedElementCount)
{
throw new ArgumentException();
}
}
else
{
if (0 == pos && !allowEmpty)
{
throw new ArgumentException();
}
}
validArguments = new PredicateList(validatedElements);
return(new NewInstancePredicate(instanceType, validArguments));
}
internal NewInstancePredicate(TypeUsage type, PredicateList args)
: base(PredicateType.NewInstance, type)
{
_elements = args;
}
