private void RestoreConnection(UnitPortPreservation sourcePreservation, UnitPortPreservation destinationPreservation)
{
InvalidOutput newInvalidSource;
InvalidInput newInvalidDestination;
var source = sourcePreservation.GetOrCreateOutput(out newInvalidSource);
var destination = destinationPreservation.GetOrCreateInput(out newInvalidDestination);
if (source.CanValidlyConnectTo(destination))
{
source.ValidlyConnectTo(destination);
}
else if (source.CanInvalidlyConnectTo(destination))
{
source.InvalidlyConnectTo(destination);
}
else
{
// In this case, we created invalid ports to attempt a connection,
// but even that failed (due to, for example, a cross-graph restoration).
// Therefore, we need to delete the invalid ports we created.
if (newInvalidSource != null)
{
sourcePreservation.unit.invalidOutputs.Remove(newInvalidSource);
}
if (newInvalidDestination != null)
{
destinationPreservation.unit.invalidInputs.Remove(newInvalidDestination);
}
}
}
public void RestoreTo(IUnit unit)
{
if (disposed)
{
throw new ObjectDisposedException(ToString());
}
// Restore inline values if possible
foreach (var previousDefaultValue in defaultValues)
{
if (unit.defaultValues.ContainsKey(previousDefaultValue.Key) &&
unit.valueInputs.Contains(previousDefaultValue.Key) &&
unit.valueInputs[previousDefaultValue.Key].type.IsAssignableFrom(previousDefaultValue.Value))
{
unit.defaultValues[previousDefaultValue.Key] = previousDefaultValue.Value;
}
}
// Restore connections if possible
foreach (var previousInputConnections in inputConnections)
{
var previousInputPort = new UnitPortPreservation(unit, previousInputConnections.Key);
var previousOutputPorts = previousInputConnections.Value;
foreach (var previousOutputPort in previousOutputPorts)
{
RestoreConnection(previousOutputPort, previousInputPort);
}
}
foreach (var previousOutputConnections in outputConnections)
{
var previousOutputPort = new UnitPortPreservation(unit, previousOutputConnections.Key);
var previousInputPorts = previousOutputConnections.Value;
foreach (var previousInputPort in previousInputPorts)
{
RestoreConnection(previousOutputPort, previousInputPort);
}
}
GenericPool <UnitPreservation> .Free(this);
}
