/// <summary>
/// Parses the specified text buffer. Continues to monitor the parsed buffer and updates
/// the parse tree asynchronously as the buffer changes.
/// </summary>
/// <param name="buffer"></param>
public BufferParser EnqueueBuffer(IProjectEntry projEntry, ITextView textView, ITextBuffer buffer)
{
// only attach one parser to each buffer, we can get multiple enqueue's
// for example if a document is already open when loading a project.
BufferParser bufferParser;
if (!buffer.Properties.TryGetProperty <BufferParser>(typeof(BufferParser), out bufferParser))
{
Dispatcher dispatcher = null;
var uiElement = textView as UIElement;
if (uiElement != null)
{
dispatcher = uiElement.Dispatcher;
}
bufferParser = new BufferParser(this, dispatcher, projEntry, _parser, buffer);
var curSnapshot = buffer.CurrentSnapshot;
var severity = _parser.PyService.GeneralOptions.IndentationInconsistencySeverity;
bufferParser.EnqueingEntry();
EnqueWorker(() => {
_parser.ParseBuffers(bufferParser, severity, curSnapshot);
});
}
else
{
bufferParser.AttachedViews++;
}
return(bufferParser);
}
internal void ReparseWorker(object unused)
{
ITextSnapshot[] snapshots;
lock (this) {
if (_parsing)
{
NotReparsing();
Interlocked.Decrement(ref _queue._analysisPending);
return;
}
_parsing = true;
var buffers = Buffers;
snapshots = new ITextSnapshot[buffers.Length];
for (int i = 0; i < buffers.Length; i++)
{
snapshots[i] = buffers[i].CurrentSnapshot;
}
}
_parser.ParseBuffers(this, IndentationInconsistencySeverity, snapshots);
Interlocked.Decrement(ref _queue._analysisPending);
lock (this) {
_parsing = false;
if (_requeue)
{
RequeueWorker();
}
_requeue = false;
}
}