Method isCustomUseExisting

packages/core/injector/module.ts:341–343

(provider: any)

  }

  public isCustomUseExisting(provider: any): provider is ExistingProvider {
    return !isUndefined((provider as ExistingProvider).useExisting);
  }

  public isDynamicModule(exported: any): exported is DynamicModule {
    return exported && exported.module;