Function walkUpViews

packages/core/src/render3/util/view_utils.ts:223–234

(nestingLevel: number, currentView: LView)

 * @param currentView View from which to start the lookup.
 */
export function walkUpViews(nestingLevel: number, currentView: LView): LView {
  while (nestingLevel > 0) {
    ngDevMode &&
      assertDefined(
        currentView[DECLARATION_VIEW],
        'Declaration view should be defined if nesting level is greater than 0.',
      );
    currentView = currentView[DECLARATION_VIEW]!;
    nestingLevel--;
  }
  return currentView;
}

export function requiresRefreshOrTraversal(lView: LView) {
  return !!(