private void RecordStepTree(IncrementalGeneratorRunStep step, bool addToOutputSteps)
{
Debug.Assert(RecordingExecutedSteps);
foreach (var(inputStep, _) in step.Inputs)
{
RecordStepTree(inputStep, addToOutputSteps: false);
}
// If the step name is not null, we record it in the easily accessible collections.
// Otherwise, it will be available only through graph traversal.
if (step.Name is not null)
{
addToNamedStepCollection(_namedSteps, step);
if (addToOutputSteps)
{
addToNamedStepCollection(_outputSteps, step);
}
}
static void addToNamedStepCollection(Dictionary <string, HashSet <IncrementalGeneratorRunStep> > stepCollectionBuilder, IncrementalGeneratorRunStep step)
{
Debug.Assert(step.Name is not null);
if (!stepCollectionBuilder.TryGetValue(step.Name, out var stepsByName))
{
stepsByName = new HashSet <IncrementalGeneratorRunStep>();
stepCollectionBuilder.Add(step.Name, stepsByName);
}
stepsByName.Add(step);
}