public IEnumerable <ITagSpan <IClassificationTag> > GetTags(NormalizedSnapshotSpanCollection spans)
{
if (!_options.SemanticColoringEnabled || spans.Count == 0)
{
return(Enumerable.Empty <ITagSpan <IClassificationTag> >());
}
var thingy = _thingy;
if (thingy == null || thingy.Snapshot != spans[0].Snapshot)
{
try
{
thingy = ThreadHelper.JoinableTaskFactory.Run(async() => await Thingy.GetAsync(_buffer, spans[0].Snapshot));
_thingy = thingy;
}
catch
{
return(Enumerable.Empty <ITagSpan <IClassificationTag> >());
}
}
if (thingy == null)
{
return(Enumerable.Empty <ITagSpan <IClassificationTag> >());
}
return(thingy.GetClassifiedSpans(spans).Select(GetTagSpan).Where(s => s != null));
}
public IEnumerable <ITagSpan <IClassificationTag> > GetTags(NormalizedSnapshotSpanCollection spans)
{
if (!_options.SemanticColoringEnabled || spans.Count == 0)
{
return(Enumerable.Empty <ITagSpan <IClassificationTag> >());
}
var thingy = _thingy;
if (thingy == null || thingy.Snapshot != spans[0].Snapshot)
{
try
{
var task = Thingy.Get(_buffer, spans[0].Snapshot);
task.Wait();
thingy = task.Result;
_thingy = thingy;
}
catch
{
return(Enumerable.Empty <ITagSpan <IClassificationTag> >());
}
}
if (thingy == null)
{
return(Enumerable.Empty <ITagSpan <IClassificationTag> >());
}
return(thingy.GetClassifiedSpans(spans).Select(GetTagSpan).Where(s => s != null));
}
private void OnOptionsChanged(object sender, PropertyChangedEventArgs e)
{
if (!_options.SemanticColoringEnabled)
{
_thingy = null;
}
TagsChanged?.Invoke(this, new SnapshotSpanEventArgs(new SnapshotSpan(_buffer.CurrentSnapshot, 0, _buffer.CurrentSnapshot.Length)));
}