CollectionDocblockGenericTypeRector

Find another rule

Add more precise generics type to method that returns Collection

 use Doctrine\Common\Collections\Collection;
 use Doctrine\Common\Collections\ArrayCollection;

 final class SomeClass
 {
+    /**
+     * @return Collection<int, SomeClass>
+     */
     public function getItems(): Collection
     {
         $collection = new ArrayCollection();
         $collection->add(new SomeClass());

         return $collection;
     }
 }

Configure your rector.php:

<?php

use Rector\Config\RectorConfig;
use Rector\Doctrine\TypedCollections\Rector\ClassMethod\CollectionDocblockGenericTypeRector;

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

SETS: Typed Collections