DI\Definition\ObjectDefinition::isInstantiable PHP Метод

    public function isInstantiable()
    {
        return $this->isInstantiable;
    }

 private function assertClassIsInstantiable(ObjectDefinition $definition)
 {
     if (!$definition->isInstantiable()) {
         throw DefinitionException::create($definition, sprintf('Entry "%s" cannot be resolved: the class is not instantiable', $definition->getName()));
     }
 }