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[DI] Prevent a ReflectionException during cache:clear when the parent class doesn't exist #25160

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dunglas
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@dunglas dunglas commented Nov 26, 2017

Q A
Branch? 3.4
Bug fix? yes
New feature? no
BC breaks? no
Deprecations? no
Tests pass? yes
Fixed tickets n/a
License MIT
Doc PR n/a

Currently, if you just run the following commands:

composer create-project -s beta symfony/skeleton:^3.4 test
composer req orm

You get the following error:

In UniqueEntityValidator.php line 27:
                                                                   
  [ReflectionException]                                            
  Class Symfony\Component\Validator\ConstraintValidator not found  

UniqueEntityValidator is in the bridge, but it's parent class is in the validator (that is not installed by default). The hot path optimization feature (enabled by default) uses reflection, and the reflection API throws an exception in this specific case.

This PR fixes the error.

@@ -378,7 +378,11 @@ private function collectLineage($class, array &$lineage)
if (isset($lineage[$class])) {
return;
}
if (!$r = $this->container->getReflectionClass($class)) {
try {
if (!$r = $this->container->getReflectionClass($class)) {
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or pass "false" as second argument?

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Better :), done

namespace Symfony\Component\DependencyInjection\Tests\Fixtures;

/**
* @author Kévin Dunglas <dunglas@gmail.com>
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not sure we need the license + docblock on fixtures ;)

@nicolas-grekas nicolas-grekas changed the title [DI] Prevent a ReflectionException during cache:clear when the parent… [DI] Prevent a ReflectionException during cache:clear when the parent class doesn't exist Nov 26, 2017

$container = new ContainerBuilder();

$container->register(HotPath\C1::class)->addTag('container.hot_path')->setPublic(true);
$container->register(HotPath\C2::class)->addArgument(new Reference(HotPath\C3::class))->setPublic(true);
$container->register(HotPath\C3::class);
$container->register(ParentNotExists::class);
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the service should be public, so that the test is still valid on 4.0

@@ -98,6 +101,16 @@ protected function getC2Service()
return $this->services['Symfony\Component\DependencyInjection\Tests\Fixtures\includes\HotPath\C2'] = new \Symfony\Component\DependencyInjection\Tests\Fixtures\includes\HotPath\C2(${($_ = isset($this->services['Symfony\Component\DependencyInjection\Tests\Fixtures\includes\HotPath\C3']) ? $this->services['Symfony\Component\DependencyInjection\Tests\Fixtures\includes\HotPath\C3'] : $this->services['Symfony\Component\DependencyInjection\Tests\Fixtures\includes\HotPath\C3'] = new \Symfony\Component\DependencyInjection\Tests\Fixtures\includes\HotPath\C3()) && false ?: '_'});
}

/**
* Gets the private 'Symfony\Component\DependencyInjection\Tests\Fixtures\ParentNotExists' shared service.
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missing fixture update

@nicolas-grekas
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Thank you @dunglas.

nicolas-grekas added a commit that referenced this pull request Nov 27, 2017
… the parent class doesn't exist (dunglas)

This PR was squashed before being merged into the 3.4 branch (closes #25160).

Discussion
----------

[DI] Prevent a ReflectionException during cache:clear when the parent class doesn't exist

| Q             | A
| ------------- | ---
| Branch?       | 3.4
| Bug fix?      | yes
| New feature?  |  no <!-- don't forget to update src/**/CHANGELOG.md files -->
| BC breaks?    | no
| Deprecations? | no <!-- don't forget to update UPGRADE-*.md files -->
| Tests pass?   | yes
| Fixed tickets | n/a
| License       | MIT
| Doc PR        | n/a

Currently, if you just run the following commands:

```
composer create-project -s beta symfony/skeleton:^3.4 test
composer req orm
```

You get the following error:

```
In UniqueEntityValidator.php line 27:

  [ReflectionException]
  Class Symfony\Component\Validator\ConstraintValidator not found
```

`UniqueEntityValidator` is in the bridge, but it's parent class is in the validator (that is not installed by default). The hot path optimization feature (enabled by default) uses reflection, and the reflection API throws an exception in this specific case.

This PR fixes the error.

Commits
-------

6e622c6 [DI] Prevent a ReflectionException during cache:clear when the parent class doesn't exist
This was referenced Nov 30, 2017
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