Enum support

src/Types/Types.php

@@ -40,6 +40,7 @@ public function determineType(mixed $value)
             is_int($value) => self::NUMBER,
             is_float($value) => self::NUMBER,
             is_array($value) => $this->processArray($value),
+            $value instanceof \BackedEnum => $this->processEnum($value),
             $value instanceof ResourceCollection => TypescriptType::determineName($value->collects).'[]',
             $value instanceof JsonResource => TypescriptType::determineName(get_class($value)),
             $value instanceof Arrayable => $this->processArray($value->toArray()), // TODO: Test for this
@@ -62,4 +63,9 @@ private function processArray(array $value)
 
         return $types->join('|').'[]';
     }
+
+    private function processEnum(\BackedEnum $value)
+    {
+        return join(' | ', Arr::map(array_column($value::cases(), 'value'), fn ($val) => is_string($val) ? "'$val'" : $val));
+    }
 }

tests/Fakes/Enums/TestEnum.php

@@ -0,0 +1,9 @@
+<?php
+
+namespace Vagebond\Runtype\Tests\Fakes\Enums;
+
+enum TestEnum: string
+{
+    case VALUE_1 = 'enum-value-1';
+    case VALUE_2 = 'enum-value-2';
+}

tests/Types/TypesTest.php

@@ -1,5 +1,6 @@
 <?php
 
+use Vagebond\Runtype\Tests\Fakes\Enums\TestEnum;
 use Vagebond\Runtype\Tests\Fakes\Models\Product;
 use Vagebond\Runtype\Tests\Fakes\Resources\ProductResource;
 use Vagebond\Runtype\Types\Types;
@@ -18,4 +19,5 @@
     [['name' => 'name', 'value' => 1], '{name:string,value:number}'],
     [['name' => 'name', 'values' => ['name' => 'value']], '{name:string,values:{name:string}}'],
     [(object) ['name' => 'name', 'value' => 1], '{name:string,value:number}'],
+    [TestEnum::VALUE_1, '\'enum-value-1\' | \'enum-value-2\''],
 ]);