/// <summary>
/// Looks up __init__ avoiding calls to __getattribute__ and handling both
/// new-style and old-style classes in the MRO.
/// </summary>
private static object GetInitMethod(CodeContext /*!*/ context, PythonType dt, object newObject)
{
// __init__ is never searched for w/ __getattribute__
for (int i = 0; i < dt.ResolutionOrder.Count; i++)
{
PythonType cdt = dt.ResolutionOrder[i];
PythonTypeSlot dts;
object value;
if (cdt.IsOldClass)
{
if (PythonOps.ToPythonType(cdt) is OldClass oc && oc.TryGetBoundCustomMember(context, "__init__", out value))
{
return(oc.GetOldStyleDescriptor(context, value, newObject, oc));
}
// fall through to new-style only case. We might accidently
// detect old-style if the user imports a IronPython.NewTypes
// type.
}
if (cdt.TryLookupSlot(context, "__init__", out dts) &&
dts.TryGetValue(context, newObject, dt, out value))
{
return(value);
}
}
return(null);
}