public ICompletionSource TryCreateCompletionSource(ITextBuffer buffer)
{
Func <CodeCompletionSource> sc = delegate() {
ILabelGraph labelGraph = AsmDudeToolsStatic.getLabelGraph(buffer, _aggregatorFactory, _docFactory, _contentService);
return(new CodeCompletionSource(buffer, labelGraph));
};
return(buffer.Properties.GetOrCreateSingletonProperty(sc));
}