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bug #10536 Avoid levenshtein comparison when using ContainerBuilder. (catch56)

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This PR was submitted for the master branch but it was merged into the 2.3 branch instead (closes #10536).

Discussion
----------

Avoid levenshtein comparison when using ContainerBuilder.

[DependencyInjection] ContainerBuilder catches exceptions when a service isn't found by Container::get().

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets |
| License       | MIT
| Doc PR        |

In the process of building the exception message, I saw over 13k calls to levenshtein() when profiling a Drupal request where there's no compiled container yet, this adds around 36ms+ to the request for the function calls themselves, more for the overall logic.

Made the levenshtein calls optional based on a property on the class, then ContainerBuilder can set that to false and skip the suggestions.

![lev-before](https://f.cloud.github.com/assets/116285/2525110/d6dd3a90-b4eb-11e3-934a-a3726e0f8f09.png)
![lev-after](https://f.cloud.github.com/assets/116285/2525114/dd2de0fc-b4eb-11e3-8df0-598cadf2286b.png)

Commits
-------

cc9cc37 Avoid levenshtein comparison when using ContainerBuilder.
This commit is contained in:
Fabien Potencier 2014-03-27 19:13:32 +01:00
commit 128ca44437
1 changed files with 26 additions and 34 deletions
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12
src/Symfony/Component/DependencyInjection/ContainerBuilder.php
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@ -461,16 +461,9 @@ class ContainerBuilder extends Container implements TaggedContainerInterface
public function get($id, $invalidBehavior = ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE)
{
$id = strtolower($id);
try {
return parent::get($id, ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE);
} catch (InactiveScopeException $e) {
if (ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE !== $invalidBehavior) {
return null;
if ($service = parent::get($id, ContainerInterface::NULL_ON_INVALID_REFERENCE)) {
return $service;
}
throw $e;
} catch (InvalidArgumentException $e) {
if (isset($this->loading[$id])) {
throw new LogicException(sprintf('The service "%s" has a circular reference to itself.', $id), 0, $e);
}
@ -507,7 +500,6 @@ class ContainerBuilder extends Container implements TaggedContainerInterface
return $service;
}
}
/**
* Merges a ContainerBuilder with the current ContainerBuilder configuration.