Function isUseExistingProvider

packages/core/src/di/jit/injectable.ts:104–106

(meta: Injectable)

}

function isUseExistingProvider(meta: Injectable): meta is Injectable & ExistingSansProvider {
  return (meta as ExistingSansProvider).useExisting !== undefined;
}

function getInjectableMetadata(type: Type<any>, srcMeta?: Injectable): R3InjectableMetadataFacade {
  // Allow the compilation of a class with a `@Injectable()` decorator without parameters