private void updatePreview(Disposable parentDisposable) {
    EditorCodePreview previousPreview = myEditorPreview;
    if (previousPreview != null) Disposer.dispose(previousPreview);
    EditorCodePreview preview = EditorCodePreview.Companion.create(myEditor);
    Disposer.register(parentDisposable, preview);
    myEditorPreview = preview;

    PsiParameter psiParameter = getParameter();
    if (psiParameter == null) return;
    MarkupModel markupModel = myEditor.getMarkupModel();
    TextRange newParameterRange = psiParameter.getTextRange();
    List<RangeHighlighter> highlighters = new ArrayList<>();
    highlighters.add(markupModel.addRangeHighlighter(newParameterRange.getStartOffset(), newParameterRange.getEndOffset(), 0, getTextAttributesForAdd(myEditor), HighlighterTargetArea.EXACT_RANGE));
    PsiParameterList list = myMethod.getParameterList();
    for (PsiParameter parameter : list.getParameters()) {
      if (parameter != psiParameter && myPanel.isParamToRemove(parameter)) {
        TextRange range = parameter.getTextRange();
        highlighters.add(markupModel.addRangeHighlighter(range.getStartOffset(), range.getEndOffset(), 0, getTestAttributesForRemoval(), HighlighterTargetArea.EXACT_RANGE));
      }
    }
    Document document = myEditor.getDocument();
    int previewLineStart = document.getLineNumber(myMethod.getTextOffset());
    int previewLineEnd = document.getLineNumber(list.getTextRange().getEndOffset());
    preview.addPreview(new IntRange(previewLineStart, previewLineEnd), IntroduceParameterHelperKt.onClickCallback(psiParameter));
    Disposer.register(preview, () -> {
      for (RangeHighlighter highlighter : highlighters) {
        highlighter.dispose();
      }
    });

    PsiMethod delegate = myCreatedDelegate;
    if (delegate != null) {
      InplaceExtractUtils utils = InplaceExtractUtils.INSTANCE;
      Disposable highlighting = utils.createInsertedHighlighting(myEditor, delegate.getTextRange());
      Disposer.register(preview, highlighting);
      IntRange linesForPreview = utils.getLinesFromTextRange(myEditor.getDocument(), delegate.getTextRange());
      utils.addPreview(preview, myEditor, linesForPreview, delegate.getTextRange().getStartOffset());
    }
  }
private void updatePreview(Disposable parentDisposable)