Function getRootComponents

packages/core/src/render3/util/discovery_utils.ts:127–130

(elementOrDir: Element | {})

 * @publicApi
 */
export function getRootComponents(elementOrDir: Element | {}): {}[] {
  const lView = readPatchedLView<{}>(elementOrDir);
  return lView !== null ? [getRootContext(lView)] : [];
}

/**
 * Retrieves an `Injector` associated with an element, component or directive instance.