refactor

src/CustomHandlers.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace Icefox\DTO;
+
+use Icefox\DTO\RuleFactory;
+use phpDocumentor\Reflection\PseudoTypes\Generic;
+
+class CustomHandlers
+{
+    /**
+     * @return array<string,string[]>
+     */
+    public static function CollectionRules(ParameterMeta $parameter, RuleFactory $factory): array
+    {
+        if (is_null($parameter->tag)) {
+            return [];
+        }
+
+        $type = $parameter->tag->getType();
+        if (!$type instanceof Generic) {
+            return [];
+        }
+
+        $subtypes = $type->getTypes();
+
+        if (count($subtypes) == 0) {
+            return ['' => ['array']];
+        }
+
+        $subtype = count($subtypes) == 1 ? $subtypes[0] : $subtypes[1];
+
+        return $factory->mergeRules(
+            ['' => ['array']],
+            $factory->getRulesFromDocBlock($subtype, '.*'),
+        );
+    }
+}
+