public static bool IsIdentifiable(Type type)
{
bool result;
lock (IdentifiableTypes)
{
if (!IdentifiableTypes.TryGetValue(type, out result))
{
var attributes = TypeDescriptorFactory.Default.AttributeRegistry.GetAttributes(type);
// Early exit if we don't need to add a unique identifier to a type
result = !(type == typeof(string) ||
type.IsValueType ||
type.IsArray ||
CollectionDescriptor.IsCollection(type) ||
DictionaryDescriptor.IsDictionary(type) ||
attributes.OfType <NonIdentifiableAttribute>().Any());
IdentifiableTypes.Add(type, result);
}
}
return(result);
}
/// <summary>
/// Creates a type descriptor for the specified type.
/// </summary>
/// <param name="type">The type.</param>
/// <returns>An instance of type descriptor.</returns>
protected virtual ITypeDescriptor Create(Type type)
{
ITypeDescriptor descriptor;
// The order of the descriptors here is important
if (PrimitiveDescriptor.IsPrimitive(type))
{
descriptor = new PrimitiveDescriptor(this, type, emitDefaultValues, namingConvention);
}
else if (DictionaryDescriptor.IsDictionary(type)) // resolve dictionary before collections, as they are also collections
{
// IDictionary
descriptor = new DictionaryDescriptor(this, type, emitDefaultValues, namingConvention);
}
else if (CollectionDescriptor.IsCollection(type))
{
// ICollection
descriptor = new CollectionDescriptor(this, type, emitDefaultValues, namingConvention);
}
else if (type.IsArray)
{
// array[]
descriptor = new ArrayDescriptor(this, type, emitDefaultValues, namingConvention);
}
else if (NullableDescriptor.IsNullable(type))
{
descriptor = new NullableDescriptor(this, type, emitDefaultValues, namingConvention);
}
else
{
// standard object (class or value type)
descriptor = new ObjectDescriptor(this, type, emitDefaultValues, namingConvention);
}
return(descriptor);
}