Symfony Profiler

<?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\HttpKernel\DependencyInjection;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\DependencyInjection\ChildDefinition;
use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
use Symfony\Component\DependencyInjection\Compiler\ServiceLocatorTagPass;
use Symfony\Component\DependencyInjection\ContainerAwareInterface;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
use Symfony\Component\DependencyInjection\LazyProxy\ProxyHelper;
use Symfony\Component\DependencyInjection\Reference;
use Symfony\Component\DependencyInjection\TypedReference;
use Symfony\Component\HttpFoundation\Request;
/**
* Creates the service-locators required by ServiceValueResolver.
*
* @author Nicolas Grekas <p@tchwork.com>
*/
class RegisterControllerArgumentLocatorsPass implements CompilerPassInterface
{
private $resolverServiceId;
private $controllerTag;
private $controllerLocator;
private $notTaggedControllerResolverServiceId;
public function __construct(string $resolverServiceId = 'argument_resolver.service', string $controllerTag = 'controller.service_arguments', string $controllerLocator = 'argument_resolver.controller_locator', string $notTaggedControllerResolverServiceId = 'argument_resolver.not_tagged_controller')
{
$this->resolverServiceId = $resolverServiceId;
$this->controllerTag = $controllerTag;
$this->controllerLocator = $controllerLocator;
$this->notTaggedControllerResolverServiceId = $notTaggedControllerResolverServiceId;
}
public function process(ContainerBuilder $container)
{
if (false === $container->hasDefinition($this->resolverServiceId) && false === $container->hasDefinition($this->notTaggedControllerResolverServiceId)) {
return;
}
$parameterBag = $container->getParameterBag();
$controllers = [];
foreach ($container->findTaggedServiceIds($this->controllerTag, true) as $id => $tags) {
$def = $container->getDefinition($id);
$def->setPublic(true);
$class = $def->getClass();
$autowire = $def->isAutowired();
$bindings = $def->getBindings();
// resolve service class, taking parent definitions into account
while ($def instanceof ChildDefinition) {
$def = $container->findDefinition($def->getParent());
$class = $class ?: $def->getClass();
$bindings += $def->getBindings();
}
$class = $parameterBag->resolveValue($class);
if (!$r = $container->getReflectionClass($class)) {
throw new InvalidArgumentException(sprintf('Class "%s" used for service "%s" cannot be found.', $class, $id));
}
$isContainerAware = $r->implementsInterface(ContainerAwareInterface::class) || is_subclass_of($class, AbstractController::class);
// get regular public methods
$methods = [];
$arguments = [];
foreach ($r->getMethods(\ReflectionMethod::IS_PUBLIC) as $r) {
if ('setContainer' === $r->name && $isContainerAware) {
continue;
}
if (!$r->isConstructor() && !$r->isDestructor() && !$r->isAbstract()) {
$methods[strtolower($r->name)] = [$r, $r->getParameters()];
}
}
// validate and collect explicit per-actions and per-arguments service references
foreach ($tags as $attributes) {
if (!isset($attributes['action']) && !isset($attributes['argument']) && !isset($attributes['id'])) {
$autowire = true;
continue;
}
foreach (['action', 'argument', 'id'] as $k) {
if (!isset($attributes[$k][0])) {
throw new InvalidArgumentException(sprintf('Missing "%s" attribute on tag "%s" %s for service "%s".', $k, $this->controllerTag, json_encode($attributes, JSON_UNESCAPED_UNICODE), $id));
}
}
if (!isset($methods[$action = strtolower($attributes['action'])])) {
throw new InvalidArgumentException(sprintf('Invalid "action" attribute on tag "%s" for service "%s": no public "%s()" method found on class "%s".', $this->controllerTag, $id, $attributes['action'], $class));
}
list($r, $parameters) = $methods[$action];
$found = false;
foreach ($parameters as $p) {
if ($attributes['argument'] === $p->name) {
if (!isset($arguments[$r->name][$p->name])) {
$arguments[$r->name][$p->name] = $attributes['id'];
}
$found = true;
break;
}
}
if (!$found) {
throw new InvalidArgumentException(sprintf('Invalid "%s" tag for service "%s": method "%s()" has no "%s" argument on class "%s".', $this->controllerTag, $id, $r->name, $attributes['argument'], $class));
}
}
foreach ($methods as list($r, $parameters)) {
/** @var \ReflectionMethod $r */
// create a per-method map of argument-names to service/type-references
$args = [];
foreach ($parameters as $p) {
/** @var \ReflectionParameter $p */
$type = ltrim($target = ProxyHelper::getTypeHint($r, $p), '\\');
$invalidBehavior = ContainerInterface::IGNORE_ON_INVALID_REFERENCE;
if (isset($arguments[$r->name][$p->name])) {
$target = $arguments[$r->name][$p->name];
if ('?' !== $target[0]) {
$invalidBehavior = ContainerInterface::RUNTIME_EXCEPTION_ON_INVALID_REFERENCE;
} elseif ('' === $target = (string) substr($target, 1)) {
throw new InvalidArgumentException(sprintf('A "%s" tag must have non-empty "id" attributes for service "%s".', $this->controllerTag, $id));
} elseif ($p->allowsNull() && !$p->isOptional()) {
$invalidBehavior = ContainerInterface::NULL_ON_INVALID_REFERENCE;
}
} elseif (isset($bindings[$bindingName = $type.' $'.$p->name]) || isset($bindings[$bindingName = '$'.$p->name]) || isset($bindings[$bindingName = $type])) {
$binding = $bindings[$bindingName];
list($bindingValue, $bindingId, , $bindingType, $bindingFile) = $binding->getValues();
$binding->setValues([$bindingValue, $bindingId, true, $bindingType, $bindingFile]);
if (!$bindingValue instanceof Reference) {
$args[$p->name] = new Reference('.value.'.$container->hash($bindingValue));
$container->register((string) $args[$p->name], 'mixed')
->setFactory('current')
->addArgument([$bindingValue]);
} else {
$args[$p->name] = $bindingValue;
}
continue;
} elseif (!$type || !$autowire || '\\' !== $target[0]) {
continue;
} elseif (!$p->allowsNull()) {
$invalidBehavior = ContainerInterface::RUNTIME_EXCEPTION_ON_INVALID_REFERENCE;
}
if (Request::class === $type) {
continue;
}
if ($type && !$p->isOptional() && !$p->allowsNull() && !class_exists($type) && !interface_exists($type, false)) {
$message = sprintf('Cannot determine controller argument for "%s::%s()": the $%s argument is type-hinted with the non-existent class or interface: "%s".', $class, $r->name, $p->name, $type);
// see if the type-hint lives in the same namespace as the controller
if (0 === strncmp($type, $class, strrpos($class, '\\'))) {
$message .= ' Did you forget to add a use statement?';
}
throw new InvalidArgumentException($message);
}
$target = ltrim($target, '\\');
$args[$p->name] = $type ? new TypedReference($target, $type, $invalidBehavior, $p->name) : new Reference($target, $invalidBehavior);
}
// register the maps as a per-method service-locators
if ($args) {
$controllers[$id.'::'.$r->name] = ServiceLocatorTagPass::register($container, $args);
}
}
}
$controllerLocatorRef = ServiceLocatorTagPass::register($container, $controllers);
if ($container->hasDefinition($this->resolverServiceId)) {
$container->getDefinition($this->resolverServiceId)
->replaceArgument(0, $controllerLocatorRef);
}
if ($container->hasDefinition($this->notTaggedControllerResolverServiceId)) {
$container->getDefinition($this->notTaggedControllerResolverServiceId)
->replaceArgument(0, $controllerLocatorRef);
}
$container->setAlias($this->controllerLocator, (string) $controllerLocatorRef);
}
}

vendor/symfony/http-kernel/DependencyInjection/RegisterControllerArgumentLocatorsPass.php line 127