Function enforceReturnValue

test/angular/1.7/angular.js:4976–4984

(name, factory)

  }

  function enforceReturnValue(name, factory) {
    return /** @this */ function enforcedReturnValue() {
      var result = instanceInjector.invoke(factory, this);
      if (isUndefined(result)) {
        throw $injectorMinErr('undef', 'Provider \'{0}\' must return a value from $get factory method.', name);
      }
      return result;
    };
  }

  function factory(name, factoryFn, enforce) {
    return provider(name, {