include missing

src/Factories/CollectionFactory.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace Icefox\DTO\Factories;
+
+use Icefox\DTO\Support\RuleFactory;
+use Illuminate\Support\Collection;
+use Illuminate\Validation\Rule;
+use ReflectionParameter;
+use phpDocumentor\Reflection\PseudoTypes\Generic;
+use phpDocumentor\Reflection\Type;
+
+class CollectionFactory
+{
+    /**
+     * @return array<string,string|Rule[]>
+     */
+    public static function rules(ReflectionParameter $parameter, ?Type $type): array
+    {
+        if (is_null($type)) {
+            return [];
+        }
+
+        if (!$type instanceof Generic) {
+            return [];
+        }
+
+        $subtypes = $type->getTypes();
+
+        if (count($subtypes) == 0) {
+            return [];
+        }
+
+        $subtype = count($subtypes) == 1 ? $subtypes[0] : $subtypes[1];
+
+        return array_merge(
+            ['' => ['array']],
+            RuleFactory::getRulesFromDocBlock($subtype, '.*'),
+        );
+    }
+}