private delegate SqlType TypeWithLenCreateDelegate(int length); // Func<int, T>
private static T GetTypeWithLen <T>(int length, TypeWithLenCreateDelegate createDelegate) where T : SqlType
{
string key = GetKeyForLengthBased(typeof(T).Name, length);
SqlType result = SqlTypes.GetOrAdd(key, k => createDelegate(length));
return((T)result);
}
private delegate SqlType TypeWithLenCreateDelegate(int length); // Func<int, T>
private static T GetTypeWithLen <T>(int length, TypeWithLenCreateDelegate createDelegate) where T : SqlType
{
string key = GetKeyForLengthBased(typeof(T).Name, length);
SqlType result;
if (!SqlTypes.TryGetValue(key, out result))
{
result = createDelegate(length);
SqlTypes.Add(key, result);
}
return((T)result);
}