private static void showParameterHint(
      final PsiElement element,
      final Editor editor,
      final Object[] descriptors,
      final Project project,
      @Nullable PsiElement highlighted,
      final int elementStart,
      final ParameterInfoHandler handler,
      final boolean requestFocus) {
    if (ParameterInfoController.isAlreadyShown(editor, elementStart)) return;

    if (editor.isDisposed() || !editor.getComponent().isVisible()) return;
    final ParameterInfoComponent component =
        new ParameterInfoComponent(descriptors, editor, handler, requestFocus);
    component.setParameterOwner(element);
    component.setRequestFocus(requestFocus);
    if (highlighted != null) {
      component.setHighlightedParameter(highlighted);
    }

    component.update(); // to have correct preferred size

    final LightweightHint hint = new LightweightHint(component);
    hint.setSelectingHint(true);
    final HintManagerImpl hintManager = HintManagerImpl.getInstanceImpl();
    final ShowParameterInfoHandler.BestLocationPointProvider provider =
        new MyBestLocationPointProvider(editor);
    final Pair<Point, Short> pos =
        provider.getBestPointPosition(hint, element, elementStart, true, HintManager.UNDER);

    PsiDocumentManager.getInstance(project)
        .performLaterWhenAllCommitted(
            () -> {
              if (editor.isDisposed() || DumbService.isDumb(project)) return;

              final Document document = editor.getDocument();
              if (document.getTextLength() < elementStart) return;

              HintHint hintHint =
                  HintManagerImpl.createHintHint(editor, pos.getFirst(), hint, pos.getSecond());
              hintHint.setExplicitClose(true);
              hintHint.setRequestFocus(requestFocus);

              Editor editorToShow =
                  editor instanceof EditorWindow ? ((EditorWindow) editor).getDelegate() : editor;
              // is case of injection we need to calculate position for EditorWindow
              // also we need to show the hint in the main editor because of intention bulb
              hintManager.showEditorHint(
                  hint,
                  editorToShow,
                  pos.getFirst(),
                  HintManager.HIDE_BY_ESCAPE | HintManager.UPDATE_BY_SCROLLING,
                  0,
                  false,
                  hintHint);
              new ParameterInfoController(project, editor, elementStart, hint, handler, provider);
            });
  }
 @TestOnly
 public static ParameterInfoUIContextEx createContext(
     Object[] objects,
     Editor editor,
     @NotNull ParameterInfoHandler handler,
     int currentParameterIndex,
     @Nullable PsiElement parameterOwner) {
   final ParameterInfoComponent infoComponent =
       new ParameterInfoComponent(objects, editor, handler);
   infoComponent.setCurrentParameterIndex(currentParameterIndex);
   infoComponent.setParameterOwner(parameterOwner);
   return infoComponent.new MyParameterContext();
 }