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Apr 11th, 2017

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<?php
/**
* License: MIT
*
*/
/**
Usage: add to your AppBundle:
first argument of constructor is an array of namespaces where your services lives.
$container->addCompilerPass(
new AutowireAutoAliasPass([
'System',
'DataSource'
]),
PassConfig::TYPE_BEFORE_OPTIMIZATION
);
*/
namespace AppBundle\Compiler;
use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
use Symfony\Component\DependencyInjection\ContainerBuilder;
class AutowireAutoAliasPass implements CompilerPassInterface
{
/**
* @var array
*/
private $namespaces;
public function __construct(array $namespaces)
{
$this->namespaces = array_map(function ($ns) {
return preg_match("/\\$/", $ns) ? $ns : $ns . "\\";
}, $namespaces);
}
public function process(ContainerBuilder $container)
{
foreach ($container->getDefinitions() as $serviceId => $definition) {
if ($definition->isAbstract() || !$definition->getClass()) {
continue;
}
if ($container->hasAlias($definition->getClass())) {
continue;
}
$className = $definition->getClass();
if (class_exists($className) && $this->belongsToDefinedNamespace($className)) {
$allTypes = array_filter(
[$className] + class_parents($className) + class_implements($className),
function ($type) use ($container) {
return $this->belongsToDefinedNamespace($type) && !$container->hasAlias($type);
}
);
foreach ($allTypes as $type) {
$container->setAlias($type, $serviceId);
}
}
}
}
private function belongsToDefinedNamespace($className)
{
foreach ($this->namespaces as $ns) {
if (substr($className, 0, strlen($ns)) === $ns) return true;
}
return false;
}
}

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