// Internal for testing
internal void OnDocumentStructureChanged(object state)
{
_dispatcher.AssertForegroundThread();
if (_disposed)
{
return;
}
var args = (DocumentStructureChangedEventArgs)state;
if (_latestChangeReference == null || // extra hardening
!_latestChangeReference.IsAssociatedWith(args) ||
args.Snapshot != TextBuffer.CurrentSnapshot)
{
// In the middle of parsing a newer change or about to parse a newer change.
return;
}
_latestChangeReference = null;
_codeDocument = args.CodeDocument;
_snapshot = args.Snapshot;
_partialParser = new RazorSyntaxTreePartialParser(CodeDocument.GetSyntaxTree());
DocumentStructureChanged?.Invoke(this, args);
}
// Internal for testing
internal void OnDocumentStructureChanged(object state)
{
_dispatcher.AssertForegroundThread();
if (_disposed)
{
return;
}
var backgroundParserArgs = (BackgroundParserResultsReadyEventArgs)state;
if (_latestChangeReference == null || // extra hardening
_latestChangeReference != backgroundParserArgs.ChangeReference ||
backgroundParserArgs.ChangeReference.Snapshot != TextBuffer.CurrentSnapshot)
{
// In the middle of parsing a newer change or about to parse a newer change.
return;
}
_latestChangeReference = null;
_codeDocument = backgroundParserArgs.CodeDocument;
_snapshot = backgroundParserArgs.ChangeReference.Snapshot;
_partialParser = new RazorSyntaxTreePartialParser(CodeDocument.GetSyntaxTree());
var documentStructureChangedArgs = new DocumentStructureChangedEventArgs(
backgroundParserArgs.ChangeReference.Change,
backgroundParserArgs.ChangeReference.Snapshot,
backgroundParserArgs.CodeDocument);
DocumentStructureChanged?.Invoke(this, documentStructureChangedArgs);
}
// Internal for testing
internal void OnDocumentStructureChanged(object state)
{
_dispatcher.AssertForegroundThread();
if (_disposed)
{
return;
}
var backgroundParserArgs = (BackgroundParserResultsReadyEventArgs)state;
if (_latestChangeReference == null || // extra hardening
_latestChangeReference != backgroundParserArgs.ChangeReference)
{
// In the middle of parsing a newer change or about to parse a newer change.
return;
}
if (backgroundParserArgs.ChangeReference.Snapshot != TextBuffer.CurrentSnapshot)
{
// Changes have impacted the snapshot after our we recorded our last change reference.
// This can happen for a multitude of reasons, usually because of a user auto-completing
// C# statements (causes multiple edits in quick succession). This ensures that our latest
// parse corresponds to the current snapshot.
QueueReparse();
return;
}
_latestChangeReference = null;
var documentStructureChangedArgs = new DocumentStructureChangedEventArgs(
backgroundParserArgs.ChangeReference.Change,
backgroundParserArgs.ChangeReference.Snapshot,
backgroundParserArgs.CodeDocument);
DocumentStructureChanged?.Invoke(this, documentStructureChangedArgs);
}
