first commit

system/engine/proxy.php

@@ -0,0 +1,88 @@
+<?php
+/**
+ * @package        OpenCart
+ * @author         Daniel Kerr
+ * @copyright      Copyright (c) 2005 - 2022, OpenCart, Ltd. (https://www.opencart.com/)
+ * @license        https://opensource.org/licenses/GPL-3.0
+ * @link           https://www.opencart.com
+ */
+namespace Opencart\System\Engine;
+/**
+ * Class Proxy
+ */
+class Proxy {
+	/**
+	 * @var array
+	 */
+	protected $data = [];
+
+	/**
+	 * __get
+	 *
+	 * @param string $key
+	 *
+	 * @return object|null
+	 */
+	public function &__get(string $key): object|null {
+		if (isset($this->data[$key])) {
+			return $this->data[$key];
+		} else {
+			throw new \Exception('Error: Could not call proxy key ' . $key . '!');
+		}
+	}
+
+	/**
+	 * __set
+	 *
+	 * @param string $key
+	 * @param string $value
+	 *
+	 * @return void
+	 */
+	public function __set(string $key, object $value): void {
+		$this->data[$key] = $value;
+	}
+
+	/**
+	 * __isset
+	 *
+	 * @param string $key
+	 *
+	 * @return void
+	 */
+	public function __isset(string $key) {
+		return isset($this->data[$key]);
+	}
+
+	/**
+	 * __unset
+	 *
+	 * @param string $key
+	 *
+	 * @return void
+	 */
+	public function __unset(string $key) {
+		unset($this->data[$key]);
+	}
+
+	/**
+	 * __call
+	 *
+	 * @param string $method
+	 * @param array  $args
+	 *
+	 * @return mixed
+	 */
+	public function __call(string $method, array $args): mixed {
+		// Hack for pass-by-reference
+		foreach ($args as $key => &$value) ;
+
+		if (isset($this->data[$method])) {
+			return call_user_func_array($this->data[$method], $args);
+		} else {
+			$trace = debug_backtrace();
+
+			throw new \Exception('<b>Notice</b>:  Undefined property: Proxy::' . $method . ' in <b>' . $trace[0]['file'] . '</b> on line <b>' . $trace[0]['line'] . '</b>');
+		}
+	}
+}