internal IDisposable CreateBlock(string blockName)
{
// Unit tests case
if (_performanceMarkerBlockProviders == null || _performanceMarkerBlockProviders.Count == 0)
{
return(new Block());
}
// Optimize for the most common case
if (_performanceMarkerBlockProviders.Count == 1)
{
IDisposable block = _performanceMarkerBlockProviders[0].Value?.CreateBlock(blockName);
if (block != null)
{
return(block);
}
}
var providedBlocks = new FrugalList <IDisposable>();
for (int i = 0; i < _performanceMarkerBlockProviders.Count; i++)
{
providedBlocks.Add(_performanceMarkerBlockProviders[i].Value?.CreateBlock(blockName));
}
return(new Block(providedBlocks));
}
public NormalizedSnapshotSpanCollection GetSpans(ITextSnapshot targetSnapshot)
{
if (targetSnapshot == null)
{
throw new ArgumentNullException("targetSnapshot");
}
if (_unmappable)
{
return(NormalizedSnapshotSpanCollection.Empty);
}
NormalizedSnapshotSpanCollection results = this.GetSpans(targetSnapshot.TextBuffer);
if ((results.Count > 0) && (results[0].Snapshot != targetSnapshot))
{
FrugalList <SnapshotSpan> translatedSpans = new FrugalList <SnapshotSpan>();
foreach (SnapshotSpan s in results)
{
translatedSpans.Add(s.TranslateTo(targetSnapshot, _trackingMode));
}
results = new NormalizedSnapshotSpanCollection(translatedSpans);
}
return(results);
}
