initial

src/InvokableCases.php

@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+namespace ArchTech\Enums;
+
+trait InvokableCases
+{
+    /** Return the enum's value when it's $invoked(). */
+    public function __invoke()
+    {
+        return $this->value;
+    }
+
+    /** Return the enum's value when it's called ::STATICALLY(). */
+    public static function __callStatic($name, $args)
+    {
+        $cases = static::cases();
+
+        foreach ($cases as $case) {
+            if ($case->name === $name) {
+                return $case->value;
+            }
+        }
+
+        throw new Exceptions\UndefinedCaseError(static::class, $name);
+    }
+}