Method runInContext

packages/core/src/di/r3_injector.ts:303–321

(fn: () => ReturnT)

  }

  override runInContext<ReturnT>(fn: () => ReturnT): ReturnT {
    assertNotDestroyed(this);

    const previousInjector = setCurrentInjector(this);
    const previousInjectImplementation = setInjectImplementation(undefined);

    let prevInjectContext: InjectorProfilerContext | undefined;
    if (ngDevMode) {
      prevInjectContext = setInjectorProfilerContext({injector: this, token: null});
    }

    try {
      return fn();
    } finally {
      setCurrentInjector(previousInjector);
      setInjectImplementation(previousInjectImplementation);
      ngDevMode && setInjectorProfilerContext(prevInjectContext!);
    }
  }

  override get<T>(
    token: ProviderToken<T>,