symfony · yceruto · May 26, 2025
@@ -1,6 +1,11 @@
 CHANGELOG
 =========
 
+7.4
+---
+
+ * Add helper resolution support for invokable commands
+
 7.3
 ---
 

@@ -133,11 +133,21 @@ private function getParameters(InputInterface $input, OutputInterface $output):
                 throw new LogicException(\sprintf('The parameter "$%s" must have a named type. Untyped, Union or Intersection types are not supported.', $parameter->getName()));
             }
 
+            if ($application = $this->command->getApplication()) {
+                foreach ($application->getHelperSet() as $helper) {
+                    if ($type->getName() === $helper::class) {
+                        $parameters[] = $helper;
+
+                        continue 2;
+                    }
+                }
+            }
+
             $parameters[] = match ($type->getName()) {
                 InputInterface::class => $input,
                 OutputInterface::class => $output,
                 SymfonyStyle::class => new SymfonyStyle($input, $output),
-                Application::class => $this->command->getApplication(),
+                Application::class => $application,
                 default => throw new RuntimeException(\sprintf('Unsupported type "%s" for parameter "$%s".', $type->getName(), $parameter->getName())),
             };
         }

@@ -12,6 +12,7 @@
 namespace Symfony\Component\Console\Tests\Command;
 
 use PHPUnit\Framework\TestCase;
+use Symfony\Component\Console\Application;
 use Symfony\Component\Console\Attribute\Argument;
 use Symfony\Component\Console\Attribute\Option;
 use Symfony\Component\Console\Command\Command;
@@ -20,6 +21,7 @@
 use Symfony\Component\Console\Completion\Suggestion;
 use Symfony\Component\Console\Exception\InvalidOptionException;
 use Symfony\Component\Console\Exception\LogicException;
+use Symfony\Component\Console\Helper\FormatterHelper;
 use Symfony\Component\Console\Input\ArrayInput;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Output\NullOutput;
@@ -372,6 +374,19 @@ public function testInvalidRequiredValueOptionEvenWithDefault()
         $command->run(new ArrayInput(['--a' => null]), new NullOutput());
     }
 
+    public function testResolveHelper()
+    {
+        $command = new Command('foo');
+        $command->setApplication(new Application());
+        $command->setCode(function (FormatterHelper $formatter): int {
+            $this->assertSame('foo...', $formatter->truncate('foobar', 3));
+
+            return 0;
+        });
+
+        $command->run(new ArrayInput([]), new NullOutput());
+    }
+
     public function getSuggestedRoles(CompletionInput $input): array
     {
         return ['ROLE_ADMIN', 'ROLE_USER'];