Core Improvements: Next Round #79 #80

libraries/Gelato/Registry/Registry.php

@@ -0,0 +1,77 @@
+<?php
+
+/**
+ * Gelato Library
+ *
+ * This source file is part of the Gelato Library. More information,
+ * documentation and tutorials can be found at http://gelato.monstra.org
+ *
+ * @package     Gelato
+ *
+ * @author      Romanenko Sergey / Awilum
+ * @copyright   (c) 2013 Romanenko Sergey / Awilum
+ * @since       1.0.0
+ */
+
+
+class Registry 
+{
+
+    /**
+     * Registry of variables
+     *
+     * @var array
+     */
+    private static $registry = array();
+
+
+    /**
+     * Checks if an object with this name is in the registry.
+     *
+     * @return bool
+     * @param  string $name The name of the registry item to check for existence.
+     */
+    public static function exists($name)
+    {
+        return isset(Gelato::$registry[(string) $name]);
+    }
+
+    /**
+     * Registers a given value under a given name.
+     *
+     * @param string          $name  The name of the value to store.
+     * @param mixed[optional] $value The value that needs to be stored.
+     */
+    public static function set($name, $value = null)
+    {
+        // redefine name
+        $name = (string) $name;
+
+        // delete item
+        if ($value === null) {
+            unset(Gelato::$registry[$name]);
+        } else {
+            Gelato::$registry[$name] = $value;
+
+            return Gelato::get($name);
+        }
+    }
+
+    /**
+     * Fetch an item from the registry.
+     *
+     * @return mixed
+     * @param  string $name The name of the item to fetch.
+     */
+    public static function get($name)
+    {
+        $name = (string) $name;
+
+        if ( ! isset(Gelato::$registry[$name])) {
+            throw new RuntimeException('No item "' . $name . '" exists in the registry.');
+        }
+
+        return Gelato::$registry[$name];
+    }
+
+}