public static object GetAttribute(CodeContext /*!*/ context, object self, string name, PythonTypeSlot getAttributeSlot, PythonTypeSlot getAttrSlot, SiteLocalStorage <CallSite <Func <CallSite, CodeContext, object, string, object> > > /*!*/ callSite)
{
object value;
if (callSite.Data == null)
{
callSite.Data = MakeGetAttrSite(context);
}
try {
if (getAttributeSlot.TryGetValue(context, self, ((IPythonObject)self).PythonType, out value))
{
return(callSite.Data.Target(callSite.Data, context, value, name));
}
} catch (MissingMemberException) {
if (getAttrSlot != null && getAttrSlot.TryGetValue(context, self, ((IPythonObject)self).PythonType, out value))
{
return(callSite.Data.Target(callSite.Data, context, value, name));
}
throw;
}
if (getAttrSlot != null && getAttrSlot.TryGetValue(context, self, ((IPythonObject)self).PythonType, out value))
{
return(callSite.Data.Target(callSite.Data, context, value, name));
}
throw PythonOps.AttributeError(name);
}
public object GetBindSlot(CallSite site, TSelfType target, CodeContext context)
{
if (target != null && target.GetType() == _type)
{
object value;
_slot.TryGetValue(context, target, _owner, out value);
return(value);
}
return(((CallSite <Func <CallSite, TSelfType, CodeContext, object> >)site).Update(site, target, context));
}
public static object GetAttributeNoThrow(CodeContext /*!*/ context, object self, string name, PythonTypeSlot getAttributeSlot, PythonTypeSlot getAttrSlot, SiteLocalStorage <CallSite <Func <CallSite, CodeContext, object, string, object> > > /*!*/ callSite)
{
object value;
if (callSite.Data == null)
{
callSite.Data = MakeGetAttrSite(context);
}
try {
if (getAttributeSlot.TryGetValue(context, self, ((IPythonObject)self).PythonType, out value))
{
return(callSite.Data.Target(callSite.Data, context, value, name));
}
} catch (MissingMemberException) {
try {
if (getAttrSlot != null && getAttrSlot.TryGetValue(context, self, ((IPythonObject)self).PythonType, out value))
{
ExceptionHelpers.DynamicStackFrames = null;
return(callSite.Data.Target(callSite.Data, context, value, name));
}
return(OperationFailed.Value);
} catch (MissingMemberException) {
ExceptionHelpers.DynamicStackFrames = null;
return(OperationFailed.Value);
}
}
try {
if (getAttrSlot != null && getAttrSlot.TryGetValue(context, self, ((IPythonObject)self).PythonType, out value))
{
return(callSite.Data.Target(callSite.Data, context, value, name));
}
} catch (MissingMemberException) {
ExceptionHelpers.DynamicStackFrames = null;
}
return(OperationFailed.Value);
}
public static object GetPropertyHelper(object prop, object instance, string name)
{
PythonTypeSlot desc = prop as PythonTypeSlot;
if (desc == null)
{
throw PythonOps.TypeError("Expected property for {0}, but found {1}",
name.ToString(), DynamicHelpers.GetPythonType(prop).Name);
}
object value;
desc.TryGetValue(DefaultContext.Default, instance, DynamicHelpers.GetPythonType(instance), out value);
return(value);
}
public static object GetCustomMember(CodeContext /*!*/ context, NamespaceTracker /*!*/ self, string name)
{
if (self.TryGetValue(name, out MemberTracker mt))
{
if (mt.MemberType == TrackerTypes.Namespace || mt.MemberType == TrackerTypes.TypeGroup)
{
return(mt);
}
PythonTypeSlot pts = PythonTypeOps.GetSlot(new MemberGroup(mt), name, context.LanguageContext.Binder.PrivateBinding);
if (pts != null && pts.TryGetValue(context, null, TypeCache.PythonType, out object value))
{
return(value);
}
}
return(OperationFailed.Value);
}
public static void AddRemoveEventHelper(object method, IPythonObject instance, object eventValue, string name)
{
object callable = method;
// TODO: dt gives us a PythonContext which we should use
PythonType dt = instance.PythonType;
PythonTypeSlot dts = method as PythonTypeSlot;
if (dts != null)
{
if (!dts.TryGetValue(DefaultContext.Default, instance, dt, out callable))
{
throw PythonOps.AttributeErrorForMissingAttribute(dt.Name, name);
}
}
if (!PythonOps.IsCallable(DefaultContext.Default, callable))
{
throw PythonOps.TypeError("Expected callable value for {0}, but found {1}", name.ToString(),
PythonTypeOps.GetName(method));
}
PythonCalls.Call(callable, eventValue);
}