Салават Ситдиков

services:
    wf.autoload:
        class: Scope\WfBundle\WfAutoloadService
        arguments: ["@doctrine.orm.entity_manager"]
    wf.autoload.getA:
        class:   A
        factory: ["@wf.autoload", getA]

twig:
 globals:
  varA: "@wf.autoload.getA"