Function ɵɵpipe

packages/core/src/render3/pipe.ts:41–82

(index: number, pipeName: string)

 * @codeGenApi
 */
export function ɵɵpipe(index: number, pipeName: string): any {
  const tView = getTView();
  let pipeDef: PipeDef<any>;
  const adjustedIndex = index + HEADER_OFFSET;

  if (tView.firstCreatePass) {
    // The `getPipeDef` throws if a pipe with a given name is not found
    // (so we use non-null assertion below).
    pipeDef = getPipeDef(pipeName, tView.pipeRegistry)!;
    tView.data[adjustedIndex] = pipeDef;
    if (pipeDef.onDestroy) {
      (tView.destroyHooks ??= []).push(adjustedIndex, pipeDef.onDestroy);
    }
  } else {
    pipeDef = tView.data[adjustedIndex] as PipeDef<any>;
  }

  const pipeFactory = pipeDef.factory || (pipeDef.factory = getFactoryDef(pipeDef.type, true));

  let previousInjectorProfilerContext: InjectorProfilerContext;
  if (ngDevMode) {
    previousInjectorProfilerContext = setInjectorProfilerContext({
      injector: new NodeInjector(getCurrentTNode() as TTextNode, getLView()),
      token: pipeDef.type,
    });
  }
  const previousInjectImplementation = setInjectImplementation(ɵɵdirectiveInject);
  try {
    // DI for pipes is supposed to behave like directives when placed on a component
    // host node, which means that we have to disable access to `viewProviders`.
    const previousIncludeViewProviders = setIncludeViewProviders(false);
    const pipeInstance = pipeFactory();
    setIncludeViewProviders(previousIncludeViewProviders);
    store(tView, getLView(), adjustedIndex, pipeInstance);
    return pipeInstance;
  } finally {
    // we have to restore the injector implementation in finally, just in case the creation of the
    // pipe throws an error.
    setInjectImplementation(previousInjectImplementation);
    ngDevMode && setInjectorProfilerContext(previousInjectorProfilerContext!);
  }
}

/**
 * Searches the pipe registry for a pipe with the given name. If one is found,