public static IEnumerable <IModelValueMemberInfo> GetCompatibleModelValueMembers(TypeInfo type,
Func <PropertyInfo, bool> propertySelector = null, Func <FieldInfo, bool> fieldSelector = null)
{
var members = new ModelMemberInfoCollection <IModelValueMemberInfo>(
GetCompatiblePropertyInfos(type, propertySelector).Select(x => new ModelPropertyInfo(x)));
members.AddRange(GetCompatibleFieldInfos(type, fieldSelector).Select(x => new ModelFieldInfo(x)));
var result = OrderMemberInfos(members);
return(result);
}
public static IEnumerable <T> OrderMemberInfos <T>(IEnumerable <T> collection) where T : IModelMemberInfo
{
if (collection == null)
{
throw new ArgumentNullException(nameof(collection));
}
var collectionToList = collection.ToList();
var mustOrder = new List <Tuple <T, ModelMemberOrderAttribute> >(collectionToList.Count);
var result = new ModelMemberInfoCollection <T>();
foreach (var element in collectionToList)
{
var attr = element.GetCustomAttributes(typeof(ModelMemberOrderAttribute), true);
if (attr != null && attr.Any())
{
mustOrder.Add(new Tuple <T, ModelMemberOrderAttribute>
(element, attr.First() as ModelMemberOrderAttribute));
}
else
{
result.Add(element);
}
}
var insertAfters = new List <Tuple <T, ModelMemberOrderAttribute> >(mustOrder.Count);
foreach (var order in mustOrder)
{
var member = order.Item1;
var attr = order.Item2;
if (attr is ModelMemberOrderInsertBeforeAttribute)
{
insertAfters.Add(order);
continue;
}
var index = attr.Order;
if (index == -1)
{
result.Add(member);
}
else
{
result.Insert(index, member);
}
}
bool oneInserted = true;
while (oneInserted && insertAfters.Any())
{
oneInserted = false;
var inserts = insertAfters.ToArray();
foreach (var order in inserts)
{
var member = order.Item1;
var attr = order.Item2 as ModelMemberOrderInsertBeforeAttribute;
if (attr == null)
{
continue;
}
var index = result.SequentialIndexOf(x => attr.NameComparer.Equals(x.Name, attr.MemberName));
if (index >= 0)
{
insertAfters.Remove(order);
result.Insert(index, member);
oneInserted = true;
}
}
}
if (insertAfters.Any())
{
result.AddRange(insertAfters.Select(x => x.Item1));
}
return(result);
}