new appraoch

pancake/system/vendor/league/oauth2-client/src/Tool/RequiredParameterTrait.php

@@ -0,0 +1,56 @@
+<?php
+/**
+ * This file is part of the league/oauth2-client library
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @copyright Copyright (c) Alex Bilbie <hello@alexbilbie.com>
+ * @license http://opensource.org/licenses/MIT MIT
+ * @link http://thephpleague.com/oauth2-client/ Documentation
+ * @link https://packagist.org/packages/league/oauth2-client Packagist
+ * @link https://github.com/thephpleague/oauth2-client GitHub
+ */
+
+namespace League\OAuth2\Client\Tool;
+
+use BadMethodCallException;
+
+/**
+ * Provides functionality to check for required parameters.
+ */
+trait RequiredParameterTrait
+{
+    /**
+     * Checks for a required parameter in a hash.
+     *
+     * @throws BadMethodCallException
+     * @param  string $name
+     * @param  array  $params
+     * @return void
+     */
+    private function checkRequiredParameter($name, array $params)
+    {
+        if (!isset($params[$name])) {
+            throw new BadMethodCallException(sprintf(
+                'Required parameter not passed: "%s"',
+                $name
+            ));
+        }
+    }
+
+    /**
+     * Checks for multiple required parameters in a hash.
+     *
+     * @throws InvalidArgumentException
+     * @param  array $names
+     * @param  array $params
+     * @return void
+     */
+    private function checkRequiredParameters(array $names, array $params)
+    {
+        foreach ($names as $name) {
+            $this->checkRequiredParameter($name, $params);
+        }
+    }
+}