refactor: exceptions directory

The exceptions directory was renamed from exception to exceptions.

Author: josantonius

src/Exceptions/CreateDirectoryException.php

@@ -0,0 +1,27 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of https://github.com/josantonius/php-json repository.
+ *
+ * (c) Josantonius <hello@josantonius.dev>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Josantonius\Json\Exceptions;
+
+class CreateDirectoryException extends \Exception
+{
+    public function __construct(string $path)
+    {
+        $lastError =  error_get_last()['message'] ?? '';
+
+        $message  = "Could not create directory in '$path'.";
+        $message .= $lastError ? " $lastError." : '';
+
+        parent::__construct($message);
+    }
+}