FatalThrowableError when calling 'getDocComment()' if value is null

[Jarown]

Q	A
Bundle version	1.3.1
Symfony version	3.2.6
PHP version	7.1.3
nikic/php-parser	2.1.1

Expected behavior

translation:extract does not result in fatal errors

Actual behavior

translation:extract throws this fatal in the described situation below
[Symfony\Component\Debug\Exception\FatalThrowableError] Call to a member function getDocComment() on null

Steps to reproduce

Run for attached files:
bin/console translation:extract en --bundle=MyBundle

Steps to reproduce

It looks like the items in the 'choices'-array cause this error. The attached patch fixes the fatal by checking first if value is an object, before calling the function.

FatalThrowableError.patch.txt
StatisticsTrackingHelper.php.txt
MyApiFormType.php.txt

[Beny13]

I get the same exception but with another case.

The choices_as_values allows me to use the symfony3 format for the array (http://symfony.com/doc/2.8/reference/forms/types/choice.html#choices-as-values).

Another point to add is that I don't want JMS to parse these choices, since I don't have any "key" and only values, but @Ignore seems to have no effect at all.

Q	A
Bundle version	1.3.1
Symfony version	2.8.18
PHP version	5.6

Here's the code:

$builder
    ->add('activated', ChoiceType::class, array(
        'choices' => array(
            '1',
            '0',
            'inherited'
        ),
        'choices_as_values' => true,
    ))
;

Here's the stack:

PHP Fatal error:  Call to a member function getDocComment() on null in /opt/rgsupv-dashboard/vendor/jms/translation-bundle/JMS/TranslationBundle/Translation/Extractor/File/FormExtractor.php on line 350
PHP Stack trace:
PHP   1. {main}() /opt/rgsupv-dashboard/app/console:0
PHP   2. Symfony\Component\Console\Application->run() /opt/rgsupv-dashboard/app/console:22
PHP   3. Symfony\Bundle\FrameworkBundle\Console\Application->doRun() /opt/rgsupv-dashboard/vendor/symfony/symfony/src/Symfony/Component/Console/Application.php:122
PHP   4. Symfony\Component\Console\Application->doRun() /opt/rgsupv-dashboard/vendor/symfony/symfony/src/Symfony/Bundle/FrameworkBundle/Console/Application.php:92
PHP   5. Symfony\Component\Console\Application->doRunCommand() /opt/rgsupv-dashboard/vendor/symfony/symfony/src/Symfony/Component/Console/Application.php:191
PHP   6. Symfony\Component\Console\Command\Command->run() /opt/rgsupv-dashboard/vendor/symfony/symfony/src/Symfony/Component/Console/Application.php:872
PHP   7. JMS\TranslationBundle\Command\ExtractTranslationCommand->execute() /opt/rgsupv-dashboard/vendor/symfony/symfony/src/Symfony/Component/Console/Command/Command.php:267
PHP   8. JMS\TranslationBundle\Translation\Updater->process() /opt/rgsupv-dashboard/vendor/jms/translation-bundle/JMS/TranslationBundle/Command/ExtractTranslationCommand.php:131
PHP   9. JMS\TranslationBundle\Translation\Updater->setConfig() /opt/rgsupv-dashboard/vendor/jms/translation-bundle/JMS/TranslationBundle/Translation/Updater.php:143
PHP  10. JMS\TranslationBundle\Translation\ExtractorManager->extract() /opt/rgsupv-dashboard/vendor/jms/translation-bundle/JMS/TranslationBundle/Translation/Updater.php:253
PHP  11. JMS\TranslationBundle\Translation\Extractor\FileExtractor->extract() /opt/rgsupv-dashboard/vendor/jms/translation-bundle/JMS/TranslationBundle/Translation/ExtractorManager.php:137
PHP  12. call_user_func_array:{/opt/rgsupv-dashboard/vendor/jms/translation-bundle/JMS/TranslationBundle/Translation/Extractor/FileExtractor.php:235}() /opt/rgsupv-dashboard/vendor/jms/translation-bundle/JMS/TranslationBundle/Translation/Extractor/FileExtractor.php:235
PHP  13. JMS\TranslationBundle\Translation\Extractor\File\FormExtractor->visitPhpFile() /opt/rgsupv-dashboard/vendor/jms/translation-bundle/JMS/TranslationBundle/Translation/Extractor/FileExtractor.php:235
PHP  14. PhpParser\NodeTraverser->traverse() /opt/rgsupv-dashboard/vendor/jms/translation-bundle/JMS/TranslationBundle/Translation/Extractor/File/FormExtractor.php:440
PHP  15. PhpParser\NodeTraverser->traverseArray() /opt/rgsupv-dashboard/vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php:64
PHP  16. PhpParser\NodeTraverser->traverseNode() /opt/rgsupv-dashboard/vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php:135
PHP  17. PhpParser\NodeTraverser->traverseArray() /opt/rgsupv-dashboard/vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php:84
PHP  18. PhpParser\NodeTraverser->traverseNode() /opt/rgsupv-dashboard/vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php:135
PHP  19. PhpParser\NodeTraverser->traverseArray() /opt/rgsupv-dashboard/vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php:84
PHP  20. PhpParser\NodeTraverser->traverseNode() /opt/rgsupv-dashboard/vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php:135
PHP  21. PhpParser\NodeTraverser->traverseArray() /opt/rgsupv-dashboard/vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php:84
PHP  22. PhpParser\NodeTraverser->traverseNode() /opt/rgsupv-dashboard/vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php:135
PHP  23. PhpParser\NodeTraverser->traverseArray() /opt/rgsupv-dashboard/vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php:84
PHP  24. PhpParser\NodeTraverser->traverseNode() /opt/rgsupv-dashboard/vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php:135
PHP  25. JMS\TranslationBundle\Translation\Extractor\File\FormExtractor->enterNode() /opt/rgsupv-dashboard/vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php:88
PHP  26. JMS\TranslationBundle\Translation\Extractor\File\FormExtractor->parseChoiceNode() /opt/rgsupv-dashboard/vendor/jms/translation-bundle/JMS/TranslationBundle/Translation/Extractor/File/FormExtractor.php:141
PHP  27. JMS\TranslationBundle\Translation\Extractor\File\FormExtractor->parseItem() /opt/rgsupv-dashboard/vendor/jms/translation-bundle/JMS/TranslationBundle/Translation/Extractor/File/FormExtractor.php:248


  [Symfony\Component\Debug\Exception\FatalErrorException]
  Error: Call to a member function getDocComment() on null

EDIT: After applying, @Jarown 's modifications, it worked like a charm. Could you make a PR with them? (For the time being I'll just use a personal fork)