public override bool Equals(ITrackingSpan tspan1, ITrackingSpan tspan2)
{
SnapshotSpan span1 = tspan1.GetSpan(tspan1.TextBuffer.CurrentSnapshot);
SnapshotSpan span2 = tspan2.GetSpan(tspan2.TextBuffer.CurrentSnapshot);
return(span1.Equals(span2));
}
public bool TryUseCache(SnapshotSpan span, out List <ClassifiedSpan> classifications)
{
lock (_gate)
{
// currently, it is using SnapshotSpan even though holding onto it could be
// expensive. reason being it should be very soon sync-ed to latest snapshot.
if (_classifications != null && _span.Equals(span))
{
classifications = _classifications;
return(true);
}
this.Clear();
classifications = null;
return(false);
}
}
