symfony
diff --git a/‎src/Symfony/Bridge/Twig/Extension/ImportMapRuntime.php
Copy file name to clipboardExpand all lines: src/Symfony/Bridge/Twig/Extension/ImportMapRuntime.php
+5-1Lines changed: 5 additions & 1 deletion b/‎src/Symfony/Bridge/Twig/Extension/ImportMapRuntime.php
Copy file name to clipboardExpand all lines: src/Symfony/Bridge/Twig/Extension/ImportMapRuntime.php
+5-1Lines changed: 5 additions & 1 deletion
diff --git a/‎src/Symfony/Bundle/FrameworkBundle/Controller/AbstractController.php
Copy file name to clipboardExpand all lines: src/Symfony/Bundle/FrameworkBundle/Controller/AbstractController.php
+15-1Lines changed: 15 additions & 1 deletion b/‎src/Symfony/Bundle/FrameworkBundle/Controller/AbstractController.php
Copy file name to clipboardExpand all lines: src/Symfony/Bundle/FrameworkBundle/Controller/AbstractController.php
+15-1Lines changed: 15 additions & 1 deletion
diff --git a/‎src/Symfony/Bundle/FrameworkBundle/Tests/Controller/AbstractControllerTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Bundle/FrameworkBundle/Tests/Controller/AbstractControllerTest.php
+1Lines changed: 1 addition & 0 deletions b/‎src/Symfony/Bundle/FrameworkBundle/Tests/Controller/AbstractControllerTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Bundle/FrameworkBundle/Tests/Controller/AbstractControllerTest.php
+1Lines changed: 1 addition & 0 deletions
@@ -25,7 +25,7 @@ public function __construct(
     ) {
     }
 
-    public function importmap(): string
+    public function importmap(?string $entryPoint = 'app'): string
     {
         $output = <<<HTML
             <script type="importmap">
@@ -49,6 +49,10 @@ public function importmap(): string
             $output .= "\n<link rel=\"modulepreload\" href=\"{$url}\">";
         }
 
+        if (null !== $entryPoint) {
+            $output .= "\n<script type=\"module\">import '$entryPoint';</script>";
+        }
+
         return $output;
     }
 }
@@ -14,6 +14,7 @@
 use Psr\Container\ContainerInterface;
 use Psr\Link\EvolvableLinkInterface;
 use Psr\Link\LinkInterface;
+use Symfony\Component\AssetMapper\ImportMap\ImportMapManager;
 use Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException;
 use Symfony\Component\DependencyInjection\ParameterBag\ContainerBagInterface;
 use Symfony\Component\Form\Extension\Core\Type\FormType;
@@ -44,6 +45,7 @@
 use Symfony\Component\WebLink\EventListener\AddLinkHeaderListener;
 use Symfony\Component\WebLink\GenericLinkProvider;
 use Symfony\Component\WebLink\HttpHeaderSerializer;
+use Symfony\Component\WebLink\Link;
 use Symfony\Contracts\Service\Attribute\Required;
 use Symfony\Contracts\Service\ServiceSubscriberInterface;
 use Twig\Environment;
@@ -95,6 +97,7 @@ public static function getSubscribedServices(): array
             'security.csrf.token_manager' => '?'.CsrfTokenManagerInterface::class,
             'parameter_bag' => '?'.ContainerBagInterface::class,
             'web_link.http_header_serializer' => '?'.HttpHeaderSerializer::class,
+            'asset_mapper.importmap.manager' => '?'.ImportMapManager::class,
         ];
     }
 
@@ -409,7 +412,7 @@ protected function addLink(Request $request, LinkInterface $link): void
     /**
      * @param LinkInterface[] $links
      */
-    protected function sendEarlyHints(iterable $links, Response $response = null): Response
+    protected function sendEarlyHints(iterable $links = [], Response $response = null, bool $preloadJavaScriptModules = false): Response
     {
         if (!$this->container->has('web_link.http_header_serializer')) {
             throw new \LogicException('You cannot use the "sendEarlyHints" method if the WebLink component is not available. Try running "composer require symfony/web-link".');
@@ -418,6 +421,17 @@ protected function sendEarlyHints(iterable $links, Response $response = null): R
         $response ??= new Response();
 
         $populatedLinks = [];
+
+        if ($preloadJavaScriptModules) {
+            if (!$this->container->has('asset_mapper.importmap.manager')) {
+                throw new \LogicException('You cannot use the JavaScript modules method if the AssetMapper component is not available. Try running "composer require symfony/asset-mapper".');
+            }
+
+            foreach ($this->container->get('asset_mapper.importmap.manager')->getModulesToPreload() as $url) {
+                $populatedLinks[] = new Link('modulepreload', $url);
+            }
+        }
+
         foreach ($links as $link) {
             if ($link instanceof EvolvableLinkInterface && !$link->getRels()) {
                 $link = $link->withRel('preload');
 
@@ -74,6 +74,7 @@ public function testSubscribedServices()
             'security.token_storage' => '?Symfony\\Component\\Security\\Core\\Authentication\\Token\\Storage\\TokenStorageInterface',
             'security.csrf.token_manager' => '?Symfony\\Component\\Security\\Csrf\\CsrfTokenManagerInterface',
             'web_link.http_header_serializer' => '?Symfony\\Component\\WebLink\\HttpHeaderSerializer',
+            'importmap.manager' => '?Symfony\\Component\\ImportMap\\ImportMapManager',
         ];
 
         $this->assertEquals($expectedServices, $subscribed, 'Subscribed core services in AbstractController have changed');
Original file line number	Diff line number	Diff line change
`@@ -25,7 +25,7 @@ public function __construct(`
`25`	`25`	`) {`
`26`	`26`	`}`
`27`	`27`
`28`		`- public function importmap(): string`
	`28`	`+ public function importmap(?string $entryPoint = 'app'): string`
`29`	`29`	`{`
`30`	`30`	`$output = <<<HTML`
`31`	`31`	`<script type="importmap">`
`@@ -49,6 +49,10 @@ public function importmap(): string`
`49`	`49`	`$output .= "\n<link rel=\"modulepreload\" href=\"{$url}\">";`
`50`	`50`	`}`
`51`	`51`
	`52`	`+ if (null !== $entryPoint) {`
	`53`	`+ $output .= "\n<script type=\"module\">import '$entryPoint';</script>";`
	`54`	`+ }`
	`55`	`+`
`52`	`56`	`return $output;`
`53`	`57`	`}`
`54`	`58`	`}`