Rector\TypeDeclaration\Rector\Class_\ChildDoctrineRepositoryClassTypeRector

ChildDoctrineRepositoryClassTypeRector

Add return type to classes that extend Doctrine\ORM\EntityRepository based on return Doctrine method names

 use Doctrine\ORM\EntityRepository;

 /**
  * @extends EntityRepository<SomeType>
  */
 final class SomeRepository extends EntityRepository
 {
-    public function getActiveItem()
+    public function getActiveItem(): ?SomeType
     {
         return $this->findOneBy([
             'something'
         ]);
     }
 }

Configure your rector.php:

<?php

use Rector\Config\RectorConfig;
use Rector\TypeDeclaration\Rector\Class_\ChildDoctrineRepositoryClassTypeRector;

return RectorConfig::configure()
    ->withRules([
        ChildDoctrineRepositoryClassTypeRector::class,
    ]);

SETS: Type Declarations