javascript - Extending a service provider (provider) -

i'm trying extend service provider; more $routeprovider ngroute module

my extended provider looks this:

angular     .module('myapp')     .provider('customroute', customroute)  function customroute($routeprovider) {      var extendedprovider = angular.extend({}, $routeprovider, {         // customization here     });      // these print identical objects     console.log(extendedprovider);      console.log($routeprovider);      this.$get = function() {         return extendedprovider;     } } 

the config of routes looks this:

angular     .module('myapp')     .config(routes);  function routes(customrouteprovider, $routeprovider) {      /* print object looks same         ones printed in provider definition */     console.log($routeprovider);      /* object not $routeprovider more :( */     console.log(customrouteprovider);      customrouteprovider         .when('/', {              templateurl: 'path/to/some/template.html',             controller: 'somecontroller',         })         .otherwise({             redirectto: '/'         }); } 

i've read thread:

how can extend service

but talk extending "factory"-service

can explain happening here? appreciated.

in order extend $routeprovider customroute function must return extended provider object:

function customroute($routeprovider) {      var extendedprovider = angular.extend({}, $routeprovider, {         // customization here         mergeroutes: function() {}     });      return extendedprovider; } 

after example new custom method customrouteprovider.mergeroutes:

customrouteprovider     .when('/', {         templateurl: 'path/to/some/template.html',         controller: 'somecontroller',     })     .otherwise({         redirectto: '/'     })     .mergeroutes({ ... }); 

demo play: http://plnkr.co/edit/mht94rflscz2jhcwpcai?p=preview

for purposes don't need mess this.$get, need add new methods $routeprovider. this.$get returns service object instance/constructor corresponding provider service ($route in case of $routeprovider).