File "PriorityTaggedServiceTrait.php"
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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\DependencyInjection\Compiler;
use Symfony\Component\DependencyInjection\Argument\TaggedIteratorArgument;
use Symfony\Component\DependencyInjection\Attribute\AsTaggedItem;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
use Symfony\Component\DependencyInjection\Reference;
use Symfony\Component\DependencyInjection\TypedReference;
/**
* Trait that allows a generic method to find and sort service by priority option in the tag.
*
* @author Iltar van der Berg <kjarli@gmail.com>
*/
trait PriorityTaggedServiceTrait
{
/**
* Finds all services with the given tag name and order them by their priority.
*
* The order of additions must be respected for services having the same priority,
* and knowing that the \SplPriorityQueue class does not respect the FIFO method,
* we should not use that class.
*
* @see https://bugs.php.net/53710
* @see https://bugs.php.net/60926
*
* @param string|TaggedIteratorArgument $tagName
*
* @return Reference[]
*/
private function findAndSortTaggedServices($tagName, ContainerBuilder $container): array
{
$indexAttribute = $defaultIndexMethod = $needsIndexes = $defaultPriorityMethod = null;
if ($tagName instanceof TaggedIteratorArgument) {
$indexAttribute = $tagName->getIndexAttribute();
$defaultIndexMethod = $tagName->getDefaultIndexMethod();
$needsIndexes = $tagName->needsIndexes();
$defaultPriorityMethod = $tagName->getDefaultPriorityMethod() ?? 'getDefaultPriority';
$tagName = $tagName->getTag();
}
$i = 0;
$services = [];
foreach ($container->findTaggedServiceIds($tagName, true) as $serviceId => $attributes) {
$defaultPriority = null;
$defaultIndex = null;
$definition = $container->getDefinition($serviceId);
$class = $definition->getClass();
$class = $container->getParameterBag()->resolveValue($class) ?: null;
$checkTaggedItem = !$definition->hasTag(80000 <= \PHP_VERSION_ID && $definition->isAutoconfigured() ? 'container.ignore_attributes' : $tagName);
foreach ($attributes as $attribute) {
$index = $priority = null;
if (isset($attribute['priority'])) {
$priority = $attribute['priority'];
} elseif (null === $defaultPriority && $defaultPriorityMethod && $class) {
$defaultPriority = PriorityTaggedServiceUtil::getDefault($container, $serviceId, $class, $defaultPriorityMethod, $tagName, 'priority', $checkTaggedItem);
}
$priority = $priority ?? $defaultPriority ?? $defaultPriority = 0;
if (null === $indexAttribute && !$defaultIndexMethod && !$needsIndexes) {
$services[] = [$priority, ++$i, null, $serviceId, null];
continue 2;
}
if (null !== $indexAttribute && isset($attribute[$indexAttribute])) {
$index = $attribute[$indexAttribute];
} elseif (null === $defaultIndex && $defaultPriorityMethod && $class) {
$defaultIndex = PriorityTaggedServiceUtil::getDefault($container, $serviceId, $class, $defaultIndexMethod ?? 'getDefaultName', $tagName, $indexAttribute, $checkTaggedItem);
}
$index = $index ?? $defaultIndex ?? $defaultIndex = $serviceId;
$services[] = [$priority, ++$i, $index, $serviceId, $class];
}
}
uasort($services, static function ($a, $b) { return $b[0] <=> $a[0] ?: $a[1] <=> $b[1]; });
$refs = [];
foreach ($services as [, , $index, $serviceId, $class]) {
if (!$class) {
$reference = new Reference($serviceId);
} elseif ($index === $serviceId) {
$reference = new TypedReference($serviceId, $class);
} else {
$reference = new TypedReference($serviceId, $class, ContainerBuilder::EXCEPTION_ON_INVALID_REFERENCE, $index);
}
if (null === $index) {
$refs[] = $reference;
} else {
$refs[$index] = $reference;
}
}
return $refs;
}
}
/**
* @internal
*/
class PriorityTaggedServiceUtil
{
/**
* @return string|int|null
*/
public static function getDefault(ContainerBuilder $container, string $serviceId, string $class, string $defaultMethod, string $tagName, ?string $indexAttribute, bool $checkTaggedItem)
{
if (!($r = $container->getReflectionClass($class)) || (!$checkTaggedItem && !$r->hasMethod($defaultMethod))) {
return null;
}
if ($checkTaggedItem && !$r->hasMethod($defaultMethod)) {
foreach ($r->getAttributes(AsTaggedItem::class) as $attribute) {
return 'priority' === $indexAttribute ? $attribute->newInstance()->priority : $attribute->newInstance()->index;
}
return null;
}
if (null !== $indexAttribute) {
$service = $class !== $serviceId ? sprintf('service "%s"', $serviceId) : 'on the corresponding service';
$message = [sprintf('Either method "%s::%s()" should ', $class, $defaultMethod), sprintf(' or tag "%s" on %s is missing attribute "%s".', $tagName, $service, $indexAttribute)];
} else {
$message = [sprintf('Method "%s::%s()" should ', $class, $defaultMethod), '.'];
}
if (!($rm = $r->getMethod($defaultMethod))->isStatic()) {
throw new InvalidArgumentException(implode('be static', $message));
}
if (!$rm->isPublic()) {
throw new InvalidArgumentException(implode('be public', $message));
}
$default = $rm->invoke(null);
if ('priority' === $indexAttribute) {
if (!\is_int($default)) {
throw new InvalidArgumentException(implode(sprintf('return int (got "%s")', get_debug_type($default)), $message));
}
return $default;
}
if (\is_int($default)) {
$default = (string) $default;
}
if (!\is_string($default)) {
throw new InvalidArgumentException(implode(sprintf('return string|int (got "%s")', get_debug_type($default)), $message));
}
return $default;
}
}