private void UpdateTags(AntlrParseResultEventArgs antlrParseResultArgs)
{
List <ITagSpan <IOutliningRegionTag> > outliningRegions = null;
IAstRuleReturnScope parseResult = antlrParseResultArgs.Result as IAstRuleReturnScope;
if (parseResult != null)
{
outliningRegions = AlloyOutliningTaggerWalker.ExtractOutliningRegions(parseResult, antlrParseResultArgs.Tokens, _provider, antlrParseResultArgs.Snapshot);
}
this._outliningRegions = outliningRegions ?? new List <ITagSpan <IOutliningRegionTag> >();
OnTagsChanged(new SnapshotSpanEventArgs(new SnapshotSpan(antlrParseResultArgs.Snapshot, new Span(0, antlrParseResultArgs.Snapshot.Length))));
}
