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<?php |
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declare(strict_types = 1); |
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namespace Innmind\EventBusBundle\DependencyInjection\Compiler; |
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use Innmind\EventBusBundle\Exception\LogicException; |
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use Innmind\EventBus\EventBusInterface; |
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use Symfony\Component\DependencyInjection\{ |
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Compiler\CompilerPassInterface, |
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ContainerBuilder, |
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Definition, |
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Reference |
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}; |
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final class BuildEventBusStackPass implements CompilerPassInterface |
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{ |
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/** |
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* {@inheritdoc} |
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*/ |
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public function process(ContainerBuilder $container) |
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{ |
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if (!$container->hasParameter('innmind_event_bus.stack')) { |
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throw new LogicException; |
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} |
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$stack = $container->getParameter('innmind_event_bus.stack'); |
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$services = $this->searchServices($container); |
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$container->setAlias( |
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'innmind_event_bus', |
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$services[$stack[0]] |
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); |
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if (count($stack) === 1) { |
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return; |
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} |
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for ($i = 0, $count = count($stack) - 1; $i < $count; $i++) { |
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$alias = $stack[$i]; |
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$next = $stack[$i + 1]; |
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$this->inject( |
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$container->getDefinition($services[$alias]), |
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$services[$next] |
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); |
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} |
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} |
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private function searchServices(ContainerBuilder $container): array |
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{ |
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$services = $container->findTaggedServiceIds('innmind_event_bus'); |
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$map = []; |
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foreach ($services as $id => $tags) { |
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foreach ($tags as $tag => $attributes) { |
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if (!isset($attributes['alias'])) { |
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throw new LogicException; |
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} |
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$map[$attributes['alias']] = $id; |
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} |
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} |
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return $map; |
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} |
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private function inject( |
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Definition $definition, |
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string $next |
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) { |
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$class = $definition->getClass(); |
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$refl = new \ReflectionMethod($class, '__construct'); |
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foreach ($refl->getParameters() as $parameter) { |
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if ((string) $parameter->getType() !== EventBusInterface::class) { |
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continue; |
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} |
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$definition->replaceArgument( |
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$parameter->getPosition(), |
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new Reference($next) |
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); |
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return; |
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} |
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throw new LogicException(sprintf( |
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'Missing argument type hinted with EventBusInterface for "%s"', |
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$class |
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)); |
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} |
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} |
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Innmind /
EventBusBundle
