Bootstrap encoder for documents

src/Bundle/ChillDocGeneratorBundle/Serializer/Helper/NormalizeNullValueHelper.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace Chill\DocGeneratorBundle\Serializer\Helper;
+
+use Symfony\Component\Serializer\Normalizer\NormalizerInterface;
+
+class NormalizeNullValueHelper
+{
+    private NormalizerInterface $normalizer;
+
+    public function __construct(NormalizerInterface $normalizer)
+    {
+        $this->normalizer = $normalizer;
+    }
+
+    public function normalize(array $attributes, string $format = 'docgen', ?array $context = [])
+    {
+        $data = [];
+
+        foreach ($attributes as $key => $class) {
+            if (is_numeric($key)) {
+                $data[$class] = '';
+            } else {
+                switch ($class) {
+                    case 'array':
+                    case 'bool':
+                    case 'double':
+                    case 'float':
+                    case 'int':
+                    case 'resource':
+                    case 'string':
+                    case 'null':
+                        $data[$key] = '';
+                        break;
+                    default:
+                        $data[$key] = $this->normalizer->normalize(null, $format, \array_merge(
+                            $context,
+                            ['docgen:expects' => $class]
+                        ));
+                        break;
+                }
+            }
+        }
+
+        return $data;
+    }
+}