public static SpanData <TData>?GetCurrentSpanReference <TData>(SpanDataCollection <TData> spanReferenceCollection, ITextView textView)
{
var caretPos = textView.Caret.Position;
// There are no refs in virtual space
if (caretPos.VirtualSpaces > 0)
{
return(null);
}
var pos = caretPos.BufferPosition;
// If it's at the end of a word wrapped line, don't mark the reference that's
// shown on the next line.
if (caretPos.Affinity == PositionAffinity.Predecessor && pos.Position != 0)
{
pos = pos - 1;
var prevSpanData = spanReferenceCollection.Find(pos.Position);
if (prevSpanData == null || prevSpanData.Value.Span.End != pos.Position)
{
return(prevSpanData);
}
else
{
return(null);
}
}
else
{
return(spanReferenceCollection.Find(pos.Position));
}
}
public void GetData(SnapshotSpan lineExtent, List <BlockStructureData> list)
{
foreach (var spanData in coll.Find(lineExtent.Span))
{
if (spanData.Span.End == lineExtent.Start.Position)
{
continue;
}
foreach (var info in spanData.Data)
{
var data = CreateBlockStructureData(info, lineExtent.Snapshot);
if (data != null)
{
list.Add(data.Value);
}
}
}
}
public BracePairResultCollection?GetBracePairs(int position)
{
var left = leftSorted.Find(position);
var right = rightSorted.Find(position);
if (left != null && right != null)
{
return(new BracePairResultCollection(new BracePairResult(left.Value.Span, left.Value.Data), new BracePairResult(right.Value.Data, right.Value.Span)));
}
if (left != null)
{
return(new BracePairResultCollection(new BracePairResult(left.Value.Span, left.Value.Data), null));
}
if (right != null)
{
return(new BracePairResultCollection(new BracePairResult(right.Value.Data, right.Value.Span), null));
}
return(null);
}
public IEnumerable <ITagSpan <ITextMarkerTag> > GetTags(NormalizedSnapshotSpanCollection spans)
{
if (documentViewer is null)
{
yield break;
}
if (documentViewer.TextView.IsClosed)
{
yield break;
}
Debug.Assert(!(documentViewerReferenceEnablerProviders is null));
Debug.Assert(!(documentViewerReferenceEnablers is null));
// It's not common for both references to be non-null but it does happen if it's VB and the reference
// is at eg. a Get keyword. For that reason, check for span refs first or we won't see the definition
// highlight because it's hidden behind another span reference.
if (!(currentSpanReference is null))
{
if (spans.Count == 0)
{
yield break;
}
var snapshot = spans[0].Snapshot;
var theRef = currentSpanReference.Value;
foreach (var span in spans)
{
foreach (var spanData in spanReferenceCollection.Find(span.Span))
{
if (spanData.Span.End > snapshot.Length)
{
continue;
}
if (!IsEnabled(spanData.Data.Id))
{
continue;
}
if (spanData.Data.Reference is null)
{
continue;
}
if (!object.Equals(spanData.Data.Reference, theRef.Data.Reference))
{
continue;
}
yield return(new TagSpan <ITextMarkerTag>(new SnapshotSpan(snapshot, spanData.Span), HighlightedReferenceTag));
}
}
}
if (!(currentReference is null))
{
if (spans.Count == 0)
{
yield break;
}
var snapshot = spans[0].Snapshot;
var theRef = currentReference.Value;
foreach (var span in spans)
{
foreach (var spanData in documentViewer.Content.ReferenceCollection.Find(span.Span))
{
Debug.Assert(spanData.Span.End <= snapshot.Length);
if (spanData.Span.End > snapshot.Length)
{
continue;
}
if (spanData.Data.IsHidden || spanData.Data.NoFollow)
{
continue;
}
var tag = TryGetTextMarkerTag(spanData);
if (tag is null)
{
continue;
}
if (!SpanDataReferenceInfoExtensions.CompareReferences(spanData.Data, theRef.Data))
{
continue;
}
yield return(new TagSpan <ITextMarkerTag>(new SnapshotSpan(snapshot, spanData.Span), tag));
}
}
}
}