internal VisualBasicTextBufferClassifier(
     Dictionary <string, ClassificationInfo> classifications,
     IClassificationChangingService classificationChangingService,
     bool isEnable,
     IEditorChangingService editorChangingService,
     ITextDocumentFactoryService textDocumentFactoryService,
     ITextBuffer buffer) : base(isEnable, editorChangingService, textDocumentFactoryService, buffer)
 {
     _service = VisualBasicClassifierService.GetClassifier(classifications, classificationChangingService);
 }
        protected RoslynTextBufferClassifier(
            bool isEnable,
            IEditorChangingService editorChangingService,
            ITextDocumentFactoryService textDocumentFactoryService,
            ITextBuffer buffer)
        {
            _textBuffer = buffer;
            _textDocumentFactoryService = textDocumentFactoryService;

            _isEnable = isEnable;
            _editorChangingService = editorChangingService;

            _editorChangingService.EditorOptionsChanged      += OnEditorOptionsChanged;
            _textDocumentFactoryService.TextDocumentDisposed += OnTextDocumentDisposed;
        }