public IEnumerable <string> GetDynamicVariableNames(VariableKind kind, GraphReference reference)
{
return(units.OfType <IUnifiedVariableUnit>()
.Where(v => v.kind == kind && Flow.CanPredict(v.name, reference))
.Select(v => Flow.Predict <string>(v.name, reference))
.Where(name => !StringUtility.IsNullOrWhiteSpace(name))
.Distinct()
.OrderBy(name => name));
}
private IEnumerable <Warning> ValueInputWarnings(ValueInput valueInput)
{
// We can disable null reference check if no self is available
// and the port requires an owner, for example in macros.
var trustFutureOwner = valueInput.nullMeansSelf && reference.self == null;
var checkForNullReference = BoltFlow.Configuration.predictPotentialNullReferences && !valueInput.allowsNull && !trustFutureOwner;
var checkForMissingComponent = BoltFlow.Configuration.predictPotentialMissingComponents && typeof(Component).IsAssignableFrom(valueInput.type);
// Note that we cannot directly check the input's predicted value, because it
// will return false for safeguard specifically because it might be missing requirements.
// Therefore, we first check the connected value, then the default value.
// If the port is connected to a predictable output, use the connected value to perform checks.
if (valueInput.hasValidConnection)
{
var valueOutput = valueInput.validConnectedPorts.Single();
if (Flow.CanPredict(valueOutput, reference))
{
if (checkForNullReference)
{
if (Flow.Predict(valueOutput, reference) == null)
{
yield return(Warning.Severe($"{PortLabel(valueInput)} cannot be null."));
}
}
if (checkForMissingComponent)
{
var connectedPredictedValue = Flow.Predict(valueOutput, reference);
// This check is necessary, because the predicted value could be
// incompatible as connections with non-guaranteed conversions are allowed.
if (ConversionUtility.CanConvert(connectedPredictedValue, typeof(GameObject), true))
{
var gameObject = ConversionUtility.Convert <GameObject>(connectedPredictedValue);
if (gameObject != null)
{
var component = (Component)ConversionUtility.Convert(gameObject, valueInput.type);
if (component == null)
{
yield return(Warning.Caution($"{PortLabel(valueInput)} is missing a {valueInput.type.DisplayName()} component."));
}
}
}
}
}
}
// If the port isn't connected but has a default value, use the default value to perform checks.
else if (valueInput.hasDefaultValue)
{
if (checkForNullReference)
{
if (Flow.Predict(valueInput, reference) == null)
{
yield return(Warning.Severe($"{PortLabel(valueInput)} cannot be null."));
}
}
if (checkForMissingComponent)
{
var unconnectedPredictedValue = Flow.Predict(valueInput, reference);
if (ConversionUtility.CanConvert(unconnectedPredictedValue, typeof(GameObject), true))
{
var gameObject = ConversionUtility.Convert <GameObject>(unconnectedPredictedValue);
if (gameObject != null)
{
var component = (Component)ConversionUtility.Convert(gameObject, valueInput.type);
if (component == null)
{
yield return(Warning.Caution($"{PortLabel(valueInput)} is missing a {valueInput.type.DisplayName()} component."));
}
}
}
}
}
// The value isn't connected and has no default value,
// therefore it is certain to be missing at runtime.
else
{
yield return(Warning.Severe($"{PortLabel(valueInput)} is missing."));
}
}
public override void DrawForeground()
{
base.DrawForeground();
if (BoltFlow.Configuration.showConnectionValues)
{
var showLastValue = EditorApplication.isPlaying && ConnectionDebugData.assignedLastValue;
var showPredictedvalue = BoltFlow.Configuration.predictConnectionValues && !EditorApplication.isPlaying && Flow.CanPredict(connection.source, reference);
if (showLastValue || showPredictedvalue)
{
var previousIconSize = EditorGUIUtility.GetIconSize();
EditorGUIUtility.SetIconSize(new Vector2(IconSize.Small, IconSize.Small));
object value;
if (showLastValue)
{
value = ConnectionDebugData.lastValue;
}
else // if (showPredictedvalue)
{
value = Flow.Predict(connection.source, reference);
}
var label = new GUIContent(value.ToShortString(), Icons.Type(value?.GetType())?[IconSize.Small]);
var labelSize = Styles.prediction.CalcSize(label);
var labelPosition = new Rect(position.position - labelSize / 2, labelSize);
BeginDim();
GUI.Label(labelPosition, label, Styles.prediction);
EndDim();
EditorGUIUtility.SetIconSize(previousIconSize);
}
}
}
