private bool TryGetRegisteredVisualizer(DkmVisualizedExpression expression, out BasicVisualizer visualizer, out DkmFailedEvaluationResult failureResult)
{
visualizer = null;
failureResult = null;
if (VisualizerRegistrar.TryCreateVisualizer(expression, out visualizer))
{
return(true);
}
string name = null;
string fullName = null;
Utility.GetExpressionName(expression, out name, out fullName);
DkmFailedEvaluationResult failure = DkmFailedEvaluationResult.Create(
expression.InspectionContext,
expression.StackFrame,
name,
fullName,
String.Format("No formatter is registered for VisualizerId {0}",
expression.VisualizerId),
DkmEvaluationResultFlags.Invalid,
null);
failureResult = failure;
return(false);
}
void IDkmCustomVisualizer.UseDefaultEvaluationBehavior(DkmVisualizedExpression expression, out bool useDefaultEvaluationBehavior, out DkmEvaluationResult defaultEvaluationResult)
{
BasicVisualizer visualizer = null;
defaultEvaluationResult = null;
useDefaultEvaluationBehavior = true;
if (expression.VisualizerId != Guids.CustomVisualizer.ForceDefault &&
VisualizerRegistrar.TryCreateVisualizer(expression, out visualizer))
{
// If this visualizer has custom fields, or displays default fields non-inline, don't use
// the default evaluation behavior.
ChildDisplayFlags flags = visualizer.ChildDisplayFlags;
if (flags.HasFlag(ChildDisplayFlags.HasCustomFields) ||
!flags.HasFlag(ChildDisplayFlags.DefaultFieldsInline))
{
useDefaultEvaluationBehavior = false;
}
}
if (useDefaultEvaluationBehavior)
{
string name = null;
string fullName = null;
Utility.GetExpressionName(expression, out name, out fullName);
fullName += ",!";
defaultEvaluationResult = CppExpressionEvaluator.Evaluate(expression, fullName);
}
}
void IDkmCustomVisualizer.EvaluateVisualizedExpression(DkmVisualizedExpression expression, out DkmEvaluationResult resultObject)
{
BasicVisualizer visualizer = null;
DkmFailedEvaluationResult failureResult = null;
if (!TryGetRegisteredVisualizer(expression, out visualizer, out failureResult))
{
resultObject = failureResult;
return;
}
DkmEvaluationResult evalResult = visualizer.EvaluationResult;
EvaluationDataItem resultDataItem = new EvaluationDataItem(expression, evalResult);
expression.SetDataItem(DkmDataCreationDisposition.CreateAlways, resultDataItem);
string name = null;
string fullName = null;
Utility.GetExpressionName(expression, out name, out fullName);
if (evalResult.TagValue == DkmEvaluationResult.Tag.SuccessResult)
{
DkmSuccessEvaluationResult successResult = (DkmSuccessEvaluationResult)evalResult;
resultObject = DkmSuccessEvaluationResult.Create(
successResult.InspectionContext,
successResult.StackFrame,
name,
successResult.FullName,
successResult.Flags,
successResult.Value,
successResult.EditableValue,
successResult.Type,
successResult.Category,
successResult.Access,
successResult.StorageType,
successResult.TypeModifierFlags,
successResult.Address,
successResult.CustomUIVisualizers,
successResult.ExternalModules,
resultDataItem);
}
else
{
DkmFailedEvaluationResult failResult = (DkmFailedEvaluationResult)evalResult;
resultObject = DkmFailedEvaluationResult.Create(
failResult.InspectionContext,
failResult.StackFrame,
name,
fullName,
failResult.ErrorMessage,
failResult.Flags,
null);
return;
}
}
public static bool TryCreateVisualizer(DkmVisualizedExpression expression, out BasicVisualizer visualizer)
{
visualizer = null;
IVisualizerFactory factory = null;
bool result = visualizers_.TryGetValue(expression.VisualizerId, out factory);
if (!result)
{
return(result);
}
visualizer = factory.CreateVisualizer(expression);
return(true);
}
private bool TryGetRegisteredVisualizer(DkmVisualizedExpression expression, out BasicVisualizer visualizer, out DkmFailedEvaluationResult failureResult)
{
visualizer = null;
failureResult = null;
if (VisualizerRegistrar.TryCreateVisualizer(expression, out visualizer))
return true;
string name = null;
string fullName = null;
Utility.GetExpressionName(expression, out name, out fullName);
DkmFailedEvaluationResult failure = DkmFailedEvaluationResult.Create(
expression.InspectionContext,
expression.StackFrame,
name,
fullName,
String.Format("No formatter is registered for VisualizerId {0}",
expression.VisualizerId),
DkmEvaluationResultFlags.Invalid,
null);
failureResult = failure;
return false;
}