/// <summary>
/// DynamoModel calls this method prior to scheduling a graph update for
/// the home workspace. This method is called to schedule custom node
/// compilation since the home workspace update may depend on it. Any
/// updates to a CustomNodeDefinition will cause GraphSyncData to be added
/// to "pendingCustomNodeSyncData" queue.
/// </summary>
/// <param name="scheduler">The scheduler on which custom node compilation
/// task can be scheduled.</param>
///
internal void ProcessPendingCustomNodeSyncData(DynamoScheduler scheduler)
{
while (pendingCustomNodeSyncData.Count > 0)
{
var initParams = new CompileCustomNodeParams()
{
SyncData = pendingCustomNodeSyncData.Dequeue(),
EngineController = this
};
var compileTask = new CompileCustomNodeAsyncTask(scheduler);
if (compileTask.Initialize(initParams))
scheduler.ScheduleForExecution(compileTask);
}
}
/// <summary>
/// Compiles this custom node definition, updating all UI instances to match
/// inputs and outputs and registering new definition with the EngineController.
/// </summary>
public void Compile(DynamoModel dynamoModel, EngineController controller)
{
// If we are loading dyf file, dont compile it until all nodes are loaded
// otherwise some intermediate function defintions will be created.
// TODO: This is a hack, in reality we should be preventing this from being called at the Workspace.RequestSync() level --SJE
if (IsBeingLoaded || IsProxy)
return;
#region Outputs and Inputs and UI updating
#region Find outputs
// Find output elements for the node
List<Output> outputs = WorkspaceModel.Nodes.OfType<Output>().ToList();
var topMost = new List<Tuple<int, NodeModel>>();
List<string> outNames;
// if we found output nodes, add select their inputs
// these will serve as the function output
if (outputs.Any())
{
topMost.AddRange(
outputs.Where(x => x.HasInput(0)).Select(x => Tuple.Create(0, x as NodeModel)));
outNames = outputs.Select(x => x.Symbol).ToList();
}
else
{
outNames = new List<string>();
// if there are no explicitly defined output nodes
// get the top most nodes and set THEM as the output
IEnumerable<NodeModel> topMostNodes = WorkspaceModel.GetTopMostNodes();
var rtnPorts =
//Grab multiple returns from each node
topMostNodes.SelectMany(
topNode =>
//If the node is a recursive instance...
topNode is Function && (topNode as Function).Definition == this
// infinity output
? new[] { new { portIndex = 0, node = topNode, name = "∞" } }
// otherwise, grab all ports with connected outputs and package necessary info
: topNode.OutPortData
.Select(
(port, i) =>
new { portIndex = i, node = topNode, name = port.NickName })
.Where(x => !topNode.HasOutput(x.portIndex)));
foreach (var rtnAndIndex in rtnPorts.Select((rtn, i) => new { rtn, idx = i }))
{
topMost.Add(Tuple.Create(rtnAndIndex.rtn.portIndex, rtnAndIndex.rtn.node));
outNames.Add(rtnAndIndex.rtn.name ?? rtnAndIndex.idx.ToString());
}
}
var nameDict = new Dictionary<string, int>();
foreach (var name in outNames)
{
if (nameDict.ContainsKey(name))
nameDict[name]++;
else
nameDict[name] = 0;
}
nameDict = nameDict.Where(x => x.Value != 0).ToDictionary(x => x.Key, x => x.Value);
outNames.Reverse();
var keys = new List<string>();
foreach (var name in outNames)
{
int amt;
if (nameDict.TryGetValue(name, out amt))
{
nameDict[name] = amt - 1;
keys.Add(name == "" ? amt + ">" : name + amt);
}
else
keys.Add(name);
}
keys.Reverse();
ReturnKeys = keys;
#endregion
//Find function entry point, and then compile
var inputNodes = WorkspaceModel.Nodes.OfType<Symbol>().ToList();
var parameters = inputNodes.Select(x => string.IsNullOrEmpty(x.InputSymbol) ? x.AstIdentifierForPreview.Value: x.InputSymbol);
Parameters = inputNodes.Select(x => x.InputSymbol);
//Update existing function nodes which point to this function to match its changes
var customNodeInstances = dynamoModel.AllNodes
.OfType<Function>()
.Where(el => el.Definition != null && el.Definition == this);
foreach (var node in customNodeInstances)
node.ResyncWithDefinition();
//Call OnSave for all saved elements
foreach (var node in WorkspaceModel.Nodes)
node.OnSave();
#endregion
var outputNodes = topMost.Select((x) =>
{
var n = x.Item2.GetAstIdentifierForOutputIndex(x.Item1);
return n as AssociativeNode;
});
#if ENABLE_DYNAMO_SCHEDULER
var initParams = new CompileCustomNodeParams()
{
EngineController = controller,
Definition = this,
Nodes = WorkspaceModel.Nodes.Where(x => !(x is Symbol)),
Parameters = parameters,
Outputs = outputNodes
};
// Schedule the compilation of CustomNodeDefinition, we are
// not interested in when it will be completed, so no callback.
var scheduler = dynamoModel.Scheduler;
var task = new CompileCustomNodeAsyncTask(scheduler);
if (task.Initialize(initParams))
scheduler.ScheduleForExecution(task);
#else
controller.GenerateGraphSyncDataForCustomNode(
this,
WorkspaceModel.Nodes.Where(x => !(x is Symbol)),
outputNodes,
parameters);
#endif
// Not update graph until Run
// if (success)
// controller.UpdateGraph();
}