void AddTransition(Transition transition) {
//==============================
// Source Errors
//==============================
if(transition.Source != null) {
if(transition.Source.Declaration == null) {
_diagnostics.Add(new Diagnostic(
transition.Source.Location,
DiagnosticDescriptors.Semantic.Nav0011CannotResolveNode0,
transition.Source.Name));
} else if(transition.Source.Declaration is TaskNodeSymbol) {
_diagnostics.Add(new Diagnostic(
transition.Source.Location,
DiagnosticDescriptors.Semantic.Nav0100TaskNode0MustNotContainLeavingEdges,
transition.Source.Name));
} else if(transition.Source.Declaration is ExitNodeSymbol) {
_diagnostics.Add(new Diagnostic(
transition.Source.Location,
DiagnosticDescriptors.Semantic.Nav0101ExitNodeMustNotContainLeavingEdges));
} else if(transition.Source.Declaration is EndNodeSymbol) {
_diagnostics.Add(new Diagnostic(
transition.Source.Location,
DiagnosticDescriptors.Semantic.Nav0102EndNodeMustNotContainLeavingEdges) );
} else if(transition.Source.Declaration is InitNodeSymbol) {
var node = (InitNodeSymbol) transition.Source.Declaration;
node.Outgoings.Add(transition);
node.References.Add(transition.Source);
} else if(transition.Source.Declaration is DialogNodeSymbol) {
var node = (DialogNodeSymbol) transition.Source.Declaration;
node.Outgoings.Add(transition);
node.References.Add(transition.Source);
} else if(transition.Source.Declaration is ViewNodeSymbol) {
var node = (ViewNodeSymbol) transition.Source.Declaration;
node.Outgoings.Add(transition);
node.References.Add(transition.Source);
} else if(transition.Source.Declaration is ChoiceNodeSymbol) {
var node = (ChoiceNodeSymbol) transition.Source.Declaration;
node.Outgoings.Add(transition);
node.References.Add(transition.Source);
}
}
//==============================
// Target Errors
//==============================
if (transition.Target != null) {
if (transition.Target.Declaration == null) {
_diagnostics.Add(new Diagnostic(
transition.Target.Location,
DiagnosticDescriptors.Semantic.Nav0011CannotResolveNode0,
transition.Target.Name));
} else if (transition.Target.Declaration is InitNodeSymbol) {
_diagnostics.Add(new Diagnostic(
transition.Target.Location,
DiagnosticDescriptors.Semantic.Nav0103InitNodeMustNotContainIncomingEdges));
} else if (transition.Target.Declaration is EndNodeSymbol) {
var node = (EndNodeSymbol)transition.Target.Declaration;
node.Incomings.Add(transition);
node.References.Add(transition.Target);
} else if (transition.Target.Declaration is ExitNodeSymbol) {
var node = (ExitNodeSymbol)transition.Target.Declaration;
node.Incomings.Add(transition);
node.References.Add(transition.Target);
} else if (transition.Target.Declaration is DialogNodeSymbol) {
var node = (DialogNodeSymbol)transition.Target.Declaration;
node.Incomings.Add(transition);
node.References.Add(transition.Target);
} else if (transition.Target.Declaration is ViewNodeSymbol) {
var node = (ViewNodeSymbol)transition.Target.Declaration;
node.Incomings.Add(transition);
node.References.Add(transition.Target);
} else if (transition.Target.Declaration is ChoiceNodeSymbol) {
var node = (ChoiceNodeSymbol)transition.Target.Declaration;
node.Incomings.Add(transition);
node.References.Add(transition.Target);
} else if (transition.Target.Declaration is TaskNodeSymbol) {
var node = (TaskNodeSymbol)transition.Target.Declaration;
node.Incomings.Add(transition);
node.References.Add(transition.Target);
}
}
//==============================
// Edge Errors
//==============================
if (transition.EdgeMode !=null) {
if(transition.EdgeMode.EdgeMode != EdgeMode.Goto) {
if(transition.Target?.Declaration is ChoiceNodeSymbol) {
_diagnostics.Add(new Diagnostic(
transition.EdgeMode.Location,
DiagnosticDescriptors.Semantic.Nav0104ChoiceNode0MustOnlyReachedByGoTo,
transition.Target.Name));
}
if(transition.Target?.Declaration is ExitNodeSymbol) {
_diagnostics.Add(new Diagnostic(
transition.EdgeMode.Location,
DiagnosticDescriptors.Semantic.Nav0105ExitNode0MustOnlyReachedByGoTo,
transition.Target.Name) );
}
if(transition.Target?.Declaration is EndNodeSymbol) {
_diagnostics.Add(new Diagnostic(
transition.EdgeMode.Location,
DiagnosticDescriptors.Semantic.Nav0106EndNode0MustOnlyReachedByGoTo,
transition.Target.Name) );
}
}
}
//==============================
// Trigger Errors
//==============================
if (transition.Triggers.Any()) {
foreach(var trigger in transition.Triggers.Where(t=>t.IsSpontaneousTrigger)) {
if(!(transition.Source?.Declaration is DialogNodeSymbol ||
transition.Source?.Declaration is ViewNodeSymbol ||
transition.Source?.Declaration is InitNodeSymbol)) {
_diagnostics.Add(new Diagnostic(
trigger.Location,
DiagnosticDescriptors.Semantic.Nav0202SpontaneousOnlyAllowedAfterViewAndInitNodes));
}
}
foreach (var trigger in transition.Triggers.Where(t => t.IsSignalTrigger)) {
if (transition.Source?.Declaration is InitNodeSymbol) {
_diagnostics.Add(new Diagnostic(
trigger.Location,
DiagnosticDescriptors.Semantic.Nav0200SignalTriggerNotAllowedAfterInit));
}
if (transition.Source?.Declaration is ChoiceNodeSymbol) {
_diagnostics.Add(new Diagnostic(
trigger.Location,
DiagnosticDescriptors.Semantic.Nav0203TriggerNotAllowedAfterChoice));
}
// TODO Keyword in eigene Klasse
if (trigger.Name == "spontaneous" || trigger.Name == "spont") {
_diagnostics.Add(new Diagnostic(
trigger.Location,
DiagnosticDescriptors.Semantic.Nav0201SpontaneousNotAllowedInSignalTrigger));
}
}
}
//==============================
// Condition Clause Errors
//==============================
if (transition.Syntax.ConditionClause != null) {
if(transition.Source != null && ! (
transition.Source?.Declaration is InitNodeSymbol ||
transition.Source?.Declaration is ChoiceNodeSymbol)){
_diagnostics.Add(new Diagnostic(
transition.Syntax.ConditionClause.GetLocation(),
DiagnosticDescriptors.Semantic.Nav0220ConditionsAreOnlySupportedAfterInitAndChoiceNodes));
}
}
_taskDefinition.Transitions.Add(transition);
}
public override void VisitTransitionDefinition(TransitionDefinitionSyntax transitionDefinitionSyntax) {
// Source
NodeReferenceSymbol sourceNodeReference = null;
var sourceNodeSyntax = transitionDefinitionSyntax.SourceNode;
if (sourceNodeSyntax != null) {
var sourceNode = _taskDefinition.NodeDeclarations.TryFindSymbol(sourceNodeSyntax.Name);
// Special case "init": Hier ist implizit auch Großschreibung erlaubt
// TODO Keyword in eigene Klasse
if (sourceNode == null && sourceNodeSyntax.Name=="init") {
sourceNode = _taskDefinition.NodeDeclarations.TryFindSymbol("Init");
}
var location = sourceNodeSyntax.GetLocation();
if(location != null) {
sourceNodeReference = new NodeReferenceSymbol(sourceNodeSyntax.Name, location, sourceNode);
}
}
// Target
NodeReferenceSymbol targetNodeReference = null;
var targetNodeSyntax = transitionDefinitionSyntax.TargetNode;
if (targetNodeSyntax != null) {
var targetNode = _taskDefinition.NodeDeclarations.TryFindSymbol(targetNodeSyntax.Name);
var location = targetNodeSyntax.GetLocation();
if (location != null) {
targetNodeReference = new NodeReferenceSymbol(targetNodeSyntax.Name, location, targetNode);
}
}
// Edge
EdgeModeSymbol edgeMode=null;
var edgeSyntax = transitionDefinitionSyntax.Edge;
if (edgeSyntax != null) {
var location = edgeSyntax.GetLocation();
if(location != null) {
edgeMode = new EdgeModeSymbol(edgeSyntax.ToString(), location, edgeSyntax.Mode);
}
}
// Triggers
var triggers = GetTriggers(transitionDefinitionSyntax);
var transition = new Transition(_taskDefinition, transitionDefinitionSyntax, sourceNodeReference, edgeMode, targetNodeReference, triggers);
AddTransition(transition);
}