compiler_passes.yaml

questions:
  -
    uuid: 1eebf878-8b9f-64d2-bff3-99d84c92580c
    question: 'Using a compiler pass, how do you check the existence of service ?'
    answers:
      - { value: "$container->hasDefinition('my.service')", correct: true }
      - { value: "$container->has('my.service')", correct: true }
      - { value: "$container->contains('my.service')", correct: false }
      - { value: "$container->getService('my.service')", correct: false }
    help: 'https://symfony.com/doc/current/service_container/definitions.html#getting-and-setting-service-definitions'
  -
    uuid: 1eebf878-8b9f-6518-9048-99d84c92580c
    question: 'Using a compiler pass, how do you retrieve a definition of service ?'
    answers:
      - { value: "$container->getDefinition('my.service')", correct: true }
      - { value: "$container->findDefinition('my.service')", correct: true }
      - { value: "$container->retrieveDefinition('my.service')", correct: false }
      - { value: "$container->getService('my.service')", correct: false }
    help: 'https://symfony.com/doc/current/service_container/definitions.html#getting-and-setting-service-definitions'
  -
    uuid: 1eebf878-8b9f-6568-8325-99d84c92580c
    question: 'What constants are used to determine if your compiler pass is executed ?'
    answers:
      - { value: 'PassConfig::TYPE_BEFORE_OPTIMIZATION', correct: true }
      - { value: 'PassConfig::TYPE_OPTIMIZE', correct: true }
      - { value: 'PassConfig::TYPE_AFTER_OPTIMIZATION', correct: false }
      - { value: 'PassConfig::TYPE_BEFORE_REMOVING', correct: true }
      - { value: 'PassConfig::TYPE_REMOVE', correct: true }
      - { value: 'PassConfig::TYPE_AFTER_REMOVING', correct: true }
      - { value: 'PassConfig::TYPE_AFTER_COMPILING', correct: false }
      - { value: 'PassConfig::TYPE_COMPILE', correct: false }
      - { value: 'PassConfig::TYPE_BEFORE_COMPILING', correct: false }
    help: 'https://symfony.com/doc/current/components/dependency_injection/compilation.html#controlling-the-pass-ordering'
  -
    uuid: 1eebf878-8ba2-613c-93bd-99d84c92580c
    question: 'Could a priority be set when adding a new compiler pass?'
    answers:
      - { value: 'Yes', correct: true }
      - { value: 'No', correct: false }
    help: 'https://symfony.com/doc/current/components/dependency_injection/compilation.html#controlling-the-pass-ordering'
  -
    uuid: 1ef4935f-f7df-6ebe-bb60-7bba21e8d9fb
    question: 'What is a "compiler pass" in Symfony?'
    answers:
      - { value: 'A tool to manage database migrations', correct: false }
      - { value: 'A mechanism to modify the service container before it is compiled', correct: true }
      - { value: 'A component for forms management', correct: false }
    help: 'https://symfony.com/doc/current/service_container/compiler_passes.html'
  -
    uuid: 1ef49363-d37f-69d0-9063-c36a242f9461
    question: 'In which file is the build method often implemented to add a "compiler pass"?'
    answers:
      - { value: config.yml, correct: false }
      - { value: Kernel.php, correct: true }
      - { value: services.yaml, correct: false }
    help: 'https://symfony.com/doc/current/service_container/compiler_passes.html'
  -
    uuid: 1ef49369-5acb-6f42-8894-eb7574faa390
    question: 'Where are "compiler passes" typically saved?'
    answers:
      - { value: 'In config/packages', correct: false }
      - { value: 'In src/DependencyInjection/Compiler', correct: true }
      - { value: 'In src/EventListener', correct: false }
    help: 'https://symfony.com/doc/current/service_container/compiler_passes.html'
  -
    uuid: 1ef4936c-ce1d-65c4-b100-e7c0f56ef5bd
    question: 'Which service should be used to add a "compiler pass" in the build method?'
    answers:
      - { value: $container, correct: false }
      - { value: $this->containerBuilder, correct: false }
      - { value: $this->addCompilerPass(), correct: true }
    help: 'https://symfony.com/doc/current/service_container/compiler_passes.html'
  -
    uuid: 1ef4936f-6ee6-651c-abec-9db2348bdd73
    question: 'What is the main object used in a "compiler pass" to access the services?'
    answers:
      - { value: ContainerBuilder, correct: true }
      - { value: ServiceContainer, correct: false }
      - { value: ServiceLocator, correct: false }
    help: 'https://symfony.com/doc/current/service_container/compiler_passes.html'
  -
    uuid: 1ef49374-0ec2-6aa0-aa38-5d3c6b70d164
    question: 'Which interface should a compiler pass implement?'
    answers:
      - { value: CompilerPassInterface, correct: true }
      - { value: ServicePassInterface, correct: false }
      - { value: ContainerPassInterface, correct: false }
    help: 'https://symfony.com/doc/current/service_container/compiler_passes.html'