initial

src/Exceptions/UndefinedCaseError.php

@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+
+namespace ArchTech\Enums\Exceptions;
+
+use Error;
+
+class UndefinedCaseError extends Error
+{
+    public function __construct(string $enum, string $case)
+    {
+        // Matches the error message of invalid Foo::BAR access
+        parent::__construct("Undefined constant $enum::$case");
+    }
+}