8000 [DI] Allow for invokable event listeners by ro0NL · Pull Request #25275 · symfony/symfony · GitHub
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[DI] Allow for invokable event listeners #25275

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Merged
merged 1 commit into from
Jan 19, 2018
Merged

[DI] Allow for invokable event listeners #25275

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5 changes: 5 additions & 0 deletions src/Symfony/Component/EventDispatcher/CHANGELOG.md
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Original file line number Diff line number Diff line change
@@ -1,6 +1,11 @@
CHANGELOG
=========

4.1.0
-----

* added support for invokable event listeners tagged with `kernel.event_listener` by default

4.0.0
-----

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8000
4 changes: 4 additions & 0 deletions src/Symfony/Component/EventDispatcher/DependencyInjection/RegisterListenersPass.php
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Expand Up @@ -68,6 +68,10 @@ public function process(ContainerBuilder $container)
'/[^a-z0-9]/i',
), function ($matches) { return strtoupper($matches[0]); }, $event['event']);
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I didn't know there is such magic default logic.

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true, yet convenient enough to keep IMHO, or at least didnt wa 8000 nt to spoil this feat. along with a deprecation.

$event['method'] = preg_replace('/[^a-z0-9]/i', '', $event['method']);

if (null !== ($class = $container->getDefinition($id)->getClass()) && ($r = $container->getReflectionClass($class, false)) && !$r->hasMethod($event['method']) && $r->hasMethod('__invoke')) {
$event['method'] = '__invoke';
}
}

$definition->addMethodCall('addListener', array($event['event'], array(new ServiceClosureArgument(new Reference($id)), $event['method']), $priority));
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52 changes: 52 additions & 0 deletions ...Symfony/Component/EventDispatcher/Tests/DependencyInjection/RegisterListenersPassTest.php
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Expand Up @@ -166,6 +166,47 @@ public function testEventSubscriberUnresolvableClassName()
$registerListenersPass = new RegisterListenersPass();
$registerListenersPass->process($container);
}

public function testInvokableEventListener()
{
$container = new ContainerBuilder();
$container->register('foo', \stdClass::class)->addTag('kernel.event_listener', array('event' => 'foo.bar'));
$container->register('bar', InvokableListenerService::class)->addTag('kernel.event_listener', array('event' => 'foo.bar'));
$container->register('baz', InvokableListenerService::class)->addTag('kernel.event_listener', array('event' => 'event'));
$container->register('event_dispatcher', \stdClass::class);

$registerListenersPass = new RegisterListenersPass();
$registerListenersPass->process($container);

$definition = $container->getDefinition('event_dispatcher');
$expectedCalls = array(
array(
'addListener',
array(
'foo.bar',
array(new ServiceClosureArgument(new Reference('foo')), 'onFooBar'),
0,
),
),
array(
'addListener',
array(
'foo.bar',
array(new ServiceClosureArgument(new Reference('bar')), '__invoke'),
0,
),
),
array(
'addListener',
array(
'event',
array(new ServiceClosureArgument(new Reference('baz')), 'onEvent'),
0,
),
),
);
$this->assertEquals($expectedCalls, $definition->getMethodCalls());
}
}

class SubscriberService implements \Symfony\Component\EventDispatcher\EventSubscriberInterface
Expand All @@ -177,3 +218,14 @@ public static function getSubscribedEvents()
);
}
}

class InvokableListenerService
{
public function __invoke()
{
}

public function onEvent()
{
}
}
0