public ICompletionSource TryCreateCompletionSource(ITextBuffer textBuffer)
{
ICompletionSource completionSource;
textBuffer.Properties.TryGetProperty(typeof(ICompletionSource), out completionSource);
if (completionSource != null)
{
return(completionSource);
}
ITextDocument textDocument;
textBuffer.Properties.TryGetProperty(typeof(ITextDocument), out textDocument);
completionSource = RuntimeLoader.CreateCompletionSource(textDocument.FilePath, _serviceProvider, textBuffer);
textBuffer.Properties.AddProperty(typeof(ICompletionSource), completionSource);
return(completionSource);
}