private void OnActiveDocumentChanged(object?sender, DocumentId?activeDocumentId)
{
var solution = _registration.GetSolutionToAnalyze();
if (solution.GetProject(activeDocumentId?.ProjectId) is not {
} activeProject)
{
return;
}
RoslynDebug.AssertNotNull(activeDocumentId);
var analysisScope = SolutionCrawlerOptions.GetBackgroundAnalysisScope(activeProject);
if (analysisScope == BackgroundAnalysisScope.ActiveFile)
{
// When the active document changes and we are only analyzing the active file, trigger a document
// changed event to reanalyze the newly-active file.
EnqueueEvent(solution, activeDocumentId, InvocationReasons.DocumentChanged, nameof(OnActiveDocumentChanged));
}
}
public void Enqueue(WorkItem item)
{
Contract.ThrowIfNull(item.DocumentId);
var options = _registration.Workspace.Options;
var analysisScope = SolutionCrawlerOptions.GetBackgroundAnalysisScope(
options,
item.Language
);
if (ShouldEnqueueForAllQueues(item, analysisScope))
{
_highPriorityProcessor.Enqueue(item);
_normalPriorityProcessor.Enqueue(item);
_lowPriorityProcessor.Enqueue(item);
}
else
{
if (
TryGetItemWithOverriddenAnalysisScope(
item,
_highPriorityProcessor.Analyzers,
options,
analysisScope,
_listener,
out var newWorkItem
)
)
{
_highPriorityProcessor.Enqueue(newWorkItem.Value);
}
if (
TryGetItemWithOverriddenAnalysisScope(
item,
_normalPriorityProcessor.Analyzers,
options,
analysisScope,
_listener,
out newWorkItem
)
)
{
_normalPriorityProcessor.Enqueue(newWorkItem.Value);
}
if (
TryGetItemWithOverriddenAnalysisScope(
item,
_lowPriorityProcessor.Analyzers,
options,
analysisScope,
_listener,
out newWorkItem
)
)
{
_lowPriorityProcessor.Enqueue(newWorkItem.Value);
}
item.AsyncToken.Dispose();
}
ReportPendingWorkItemCount();
return;
bool ShouldEnqueueForAllQueues(
WorkItem item,
BackgroundAnalysisScope analysisScope
)
{
var reasons = item.InvocationReasons;
// For active file analysis scope we only process following:
// 1. Active documents
// 2. Closed and removed documents to ensure that data for removed and closed documents
// is no longer held in memory and removed from any user visible components.
// For example, this ensures that diagnostics for closed/removed documents are removed from error list.
// Note that we don't need to specially handle "Project removed" or "Project closed" case, as the solution crawler
// enqueues individual "DocumentRemoved" work items for each document in the removed project.
if (
analysisScope == BackgroundAnalysisScope.ActiveFile &&
!reasons.Contains(PredefinedInvocationReasons.DocumentClosed) &&
!reasons.Contains(PredefinedInvocationReasons.DocumentRemoved)
)
{
return(item.DocumentId == _documentTracker?.TryGetActiveDocument());
}
return(true);
}
}
