Function cleanupDehydratedViews

packages/core/src/hydration/cleanup.ts:129–145

(appRef: ApplicationRef)

 * all dehydrated views from all `LContainer`s along the way.
 */
export function cleanupDehydratedViews(appRef: ApplicationRef) {
  const viewRefs = appRef._views;
  for (const viewRef of viewRefs) {
    const lNode = getLNodeForHydration(viewRef);
    // An `lView` might be `null` if a `ViewRef` represents
    // an embedded view (not a component view).
    if (lNode !== null && lNode[HOST] !== null) {
      if (isLView(lNode)) {
        cleanupLView(lNode);
      } else {
        // Cleanup in all views within this view container
        cleanupLContainer(lNode);
      }
      ngDevMode && ngDevMode.dehydratedViewsCleanupRuns++;
    }
  }
}

/**
 * post hydration cleanup handling for defer blocks that were incrementally