ng-forward ng1 migration (before)

app.js

angular.module('app', []);

component-a.js

(function() {
  angular.module('app')
  .directive('componentA', function() {
    return ['serviceA', function linkFn(serviceA){}]
  });
})()

component-b.js

(function() {
  angular.module('app')
  .directive('componentB', function() {
    return ['serviceB', function linkFn(serviceA){}]
  });
})()

service-a.js

(function() {
  angular.module('app')
  .service('serviceA', function() {});
})()

service-b.js

(function() {
  angular.module('app')
  .service('serviceB', function() {});
})()