Added `yii\base\Application::loadedModules`

framework/CHANGELOG.md

@@ -7,6 +7,7 @@ Yii Framework 2 Change Log
 - Bug #5260: `yii\i18n\Formatter::decimalSeparator` and `yii\i18n\Formatter::thousandSeparator` where not configurable when intl is not installed (execut, cebe)
 - Bug: Date and time formatting now assumes UTC as the timezone for input dates unless a timezone is explicitly given (cebe)
 - Enh #4275: Added `removeChildren()` to `yii\rbac\ManagerInterface` and implementations (samdark)
+- Enh: Added `yii\base\Application::loadedModules` (qiangxue)
 
 
 2.0.0-rc September 27, 2014

framework/base/Application.php

@@ -180,6 +180,10 @@ abstract class Application extends Module
      * This property is managed by the application. Do not modify this property.
      */
     public $state;
+    /**
+     * @var array list of loaded modules indexed by their class names.
+     */
+    public $loadedModules = [];
 
 
     /**

framework/base/Module.php

@@ -123,10 +123,6 @@ class Module extends ServiceLocator
      * @var array child modules of this module
      */
     private $_modules = [];
-    /**
-     * @var array list of currently requested modules indexed by their class names
-     */
-    private static $_instances = [];
 
 
     /**
@@ -151,7 +147,7 @@ class Module extends ServiceLocator
     public static function getInstance()
     {
         $class = get_called_class();
-        return isset(self::$_instances[$class]) ? self::$_instances[$class] : null;
+        return isset(Yii::$app->loadedModules[$class]) ? Yii::$app->loadedModules[$class] : null;
     }
 
     /**
@@ -162,9 +158,9 @@ class Module extends ServiceLocator
     public static function setInstance($instance)
     {
         if ($instance === null) {
-            unset(self::$_instances[get_called_class()]);
+            unset(Yii::$app->loadedModules[get_called_class()]);
         } else {
-            self::$_instances[get_class($instance)] = $instance;
+            Yii::$app->loadedModules[get_class($instance)] = $instance;
         }
     }