IOC

gistfile1.js

var toto = function (name, $Provider) {
   //will be an EntityService
   //name is test
};

toto.$DataProvider = "";

IOC.register("Toto")
   .define( toto )
   .inject({ name: "Test" })
   .singleton();
   
IOC.register("EntityService")
   .define( function () {
      
   } )
   .singleton();

IOC.when( "Provider" )
   .use( "EntityService" );

IOC.when( "DataProvider" )
   .use( "EntityService" );


var totoService = IOC.create( "Toto" );
//totoService.$DataProvider is an EntityService