internal MappingProxy(CodeContext context, PythonType /*!*/ dt)
{
Debug.Assert(dt != null);
Dictionary = dt.GetMemberDictionary(context, false);
}
public int __len__(CodeContext context)
{
return(_dt.GetMemberDictionary(context, false).Count);
}
public static void Set__bases__(CodeContext/*!*/ context, PythonType/*!*/ type, object value) {
// validate we got a tuple...
PythonTuple t = value as PythonTuple;
if (t == null) throw PythonOps.TypeError("expected tuple of types or old-classes, got '{0}'", PythonTypeOps.GetName(value));
List<PythonType> ldt = new List<PythonType>();
foreach (object o in t) {
// gather all the type objects...
PythonType adt = o as PythonType;
if (adt == null) {
OldClass oc = o as OldClass;
if (oc == null) {
throw PythonOps.TypeError("expected tuple of types, got '{0}'", PythonTypeOps.GetName(o));
}
adt = oc.TypeObject;
}
ldt.Add(adt);
}
// Ensure that we are not switching the CLI type
Type newType = NewTypeMaker.GetNewType(type.Name, t, type.GetMemberDictionary(DefaultContext.Default));
if (type.UnderlyingSystemType != newType)
throw PythonOps.TypeErrorForIncompatibleObjectLayout("__bases__ assignment", type, newType);
// set bases & the new resolution order
List<PythonType> mro = CalculateMro(type, ldt);
type.BaseTypes = ldt;
type._resolutionOrder = mro;
}
