createMapperService() protected méthode

protected createMapperService ( $repositoryName, $repositoryClass, ContainerBuilder $builder )
$builder Nette\DI\ContainerBuilder
 protected function createMapperService($repositoryName, $repositoryClass, ContainerBuilder $builder)
 {
     if (!$this->testingMappers) {
         return parent::createMapperService($repositoryName, $repositoryClass, $builder);
     }
     $testMapperName = $this->prefix('mappers.testing.' . $repositoryName);
     if (!$builder->hasDefinition($testMapperName)) {
         $mapperClass = TestMapper::class;
         $builder->addDefinition($testMapperName)->setClass($mapperClass);
     }
     return $testMapperName;
 }