private object GetIndex(CodeContext context, object index)
{
if (index is string strIndex)
{
PythonTypeSlot dts;
if (_dt.TryLookupSlot(context, strIndex, out dts))
{
if (dts is PythonTypeUserDescriptorSlot uds)
{
return(uds.Value);
}
return(dts);
}
}
throw PythonOps.KeyError(index.ToString());
}
private bool TryLookupInBase(CodeContext context, PythonType pt, string name, object self, out object value) {
PythonTypeSlot dts;
if (pt.OldClass == null) {
// new-style class, or reflected type, lookup slot
if (pt.TryLookupSlot(context, name, out dts) &&
dts.TryGetValue(context, self, DescriptorContext, out value)) {
return true;
}
} else {
// old-style class, lookup attribute
OldClass dt = pt.OldClass;
if (PythonOps.TryGetBoundAttr(context, dt, name, out value)) {
value = OldClass.GetOldStyleDescriptor(context, value, self, DescriptorContext);
return true;
}
}
value = null;
return false;
}
private static bool LookupValue(PythonType dt, object instance, SymbolId name, out object value) {
PythonTypeSlot dts;
if (dt.TryLookupSlot(DefaultContext.Default, name, out dts) &&
dts.TryGetValue(DefaultContext.Default, instance, dt, out value)) {
return true;
}
value = null;
return false;
}
public static object Get__doc__(CodeContext/*!*/ context, PythonType self) {
PythonTypeSlot pts;
object res;
if (self.TryLookupSlot(context, Symbols.Doc, out pts) &&
pts.TryGetValue(context, null, self, out res)) {
return res;
} else if (self.IsSystemType) {
return PythonTypeOps.GetDocumentation(self.UnderlyingSystemType);
}
return null;
}
