抽象类 yii\base\Application

                public function __call($name, $params)
{
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $object) {
        if ($object->hasMethod($name)) {
            return call_user_func_array([$object, $name], $params);
        }
    }
    throw new UnknownMethodException('Calling unknown method: ' . get_class($this) . "::$name()");
}

            

                public function __clone()
{
    $this->_events = [];
    $this->_eventWildcards = [];
    $this->_behaviors = null;
}

            

                public function __get($name)
{
    if ($this->has($name)) {
        return $this->get($name);
    }
    return parent::__get($name);
}

            

                public function __isset($name)
{
    if ($this->has($name)) {
        return true;
    }
    return parent::__isset($name);
}

            

                public function __set($name, $value)
{
    $setter = 'set' . $name;
    if (method_exists($this, $setter)) {
        // set property
        $this->$setter($value);
        return;
    } elseif (strncmp($name, 'on ', 3) === 0) {
        // on event: attach event handler
        $this->on(trim(substr($name, 3)), $value);
        return;
    } elseif (strncmp($name, 'as ', 3) === 0) {
        // as behavior: attach behavior
        $name = trim(substr($name, 3));
        $this->attachBehavior($name, $value instanceof Behavior ? $value : Yii::createObject($value));
        return;
    }
    // behavior property
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $behavior) {
        if ($behavior->canSetProperty($name)) {
            $behavior->$name = $value;
            return;
        }
    }
    if (method_exists($this, 'get' . $name)) {
        throw new InvalidCallException('Setting read-only property: ' . get_class($this) . '::' . $name);
    }
    throw new UnknownPropertyException('Setting unknown property: ' . get_class($this) . '::' . $name);
}

            

                public function __unset($name)
{
    $setter = 'set' . $name;
    if (method_exists($this, $setter)) {
        $this->$setter(null);
        return;
    }
    // behavior property
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $behavior) {
        if ($behavior->canSetProperty($name)) {
            $behavior->$name = null;
            return;
        }
    }
    throw new InvalidCallException('Unsetting an unknown or read-only property: ' . get_class($this) . '::' . $name);
}

            

                public function afterAction($action, $result)
{
    $event = new ActionEvent($action);
    $event->result = $result;
    $this->trigger(self::EVENT_AFTER_ACTION, $event);
    return $event->result;
}

            

                public function attachBehavior($name, $behavior)
{
    $this->ensureBehaviors();
    return $this->attachBehaviorInternal($name, $behavior);
}

            

                public function attachBehaviors($behaviors)
{
    $this->ensureBehaviors();
    foreach ($behaviors as $name => $behavior) {
        $this->attachBehaviorInternal($name, $behavior);
    }
}

            

                public function beforeAction($action)
{
    $event = new ActionEvent($action);
    $this->trigger(self::EVENT_BEFORE_ACTION, $event);
    return $event->isValid;
}

            

                public function behaviors()
{
    return [];
}

            

                public function canGetProperty($name, $checkVars = true, $checkBehaviors = true)
{
    if (method_exists($this, 'get' . $name) || $checkVars && property_exists($this, $name)) {
        return true;
    } elseif ($checkBehaviors) {
        $this->ensureBehaviors();
        foreach ($this->_behaviors as $behavior) {
            if ($behavior->canGetProperty($name, $checkVars)) {
                return true;
            }
        }
    }
    return false;
}

            

                public function canSetProperty($name, $checkVars = true, $checkBehaviors = true)
{
    if (method_exists($this, 'set' . $name) || $checkVars && property_exists($this, $name)) {
        return true;
    } elseif ($checkBehaviors) {
        $this->ensureBehaviors();
        foreach ($this->_behaviors as $behavior) {
            if ($behavior->canSetProperty($name, $checkVars)) {
                return true;
            }
        }
    }
    return false;
}

            

                public static function className()
{
    return get_called_class();
}

            

                public function clear($id)
{
    unset($this->_definitions[$id], $this->_components[$id]);
}

            

                public function createController($route)
{
    if ($route === '') {
        $route = $this->defaultRoute;
    }
    // double slashes or leading/ending slashes may cause substr problem
    $route = trim($route, '/');
    if (strpos($route, '//') !== false) {
        return false;
    }
    if (strpos($route, '/') !== false) {
        list($id, $route) = explode('/', $route, 2);
    } else {
        $id = $route;
        $route = '';
    }
    // module and controller map take precedence
    if (isset($this->controllerMap[$id])) {
        $controller = Yii::createObject($this->controllerMap[$id], [$id, $this]);
        return [$controller, $route];
    }
    $module = $this->getModule($id);
    if ($module !== null) {
        return $module->createController($route);
    }
    if (($pos = strrpos($route, '/')) !== false) {
        $id .= '/' . substr($route, 0, $pos);
        $route = substr($route, $pos + 1);
    }
    $controller = $this->createControllerByID($id);
    if ($controller === null && $route !== '') {
        $controller = $this->createControllerByID($id . '/' . $route);
        $route = '';
    }
    return $controller === null ? false : [$controller, $route];
}

            

                public function createControllerByID($id)
{
    $pos = strrpos($id, '/');
    if ($pos === false) {
        $prefix = '';
        $className = $id;
    } else {
        $prefix = substr($id, 0, $pos + 1);
        $className = substr($id, $pos + 1);
    }
    if ($this->isIncorrectClassNameOrPrefix($className, $prefix)) {
        return null;
    }
    $className = preg_replace_callback('%-([a-z0-9_])%i', function ($matches) {
            return ucfirst($matches[1]);
    }, ucfirst($className)) . 'Controller';
    $className = ltrim($this->controllerNamespace . '\\' . str_replace('/', '\\', $prefix) . $className, '\\');
    if (strpos($className, '-') !== false || !class_exists($className)) {
        return null;
    }
    if (is_subclass_of($className, 'yii\base\Controller')) {
        $controller = Yii::createObject($className, [$id, $this]);
        return get_class($controller) === $className ? $controller : null;
    } elseif (YII_DEBUG) {
        throw new InvalidConfigException('Controller class must extend from \\yii\\base\\Controller.');
    }
    return null;
}

            

                protected function defaultVersion()
{
    if ($this->module === null) {
        return '1.0';
    }
    return $this->module->getVersion();
}

            

                public function detachBehavior($name)
{
    $this->ensureBehaviors();
    if (isset($this->_behaviors[$name])) {
        $behavior = $this->_behaviors[$name];
        unset($this->_behaviors[$name]);
        $behavior->detach();
        return $behavior;
    }
    return null;
}

            

                public function detachBehaviors()
{
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $name => $behavior) {
        $this->detachBehavior($name);
    }
}

            

                public function ensureBehaviors()
{
    if ($this->_behaviors === null) {
        $this->_behaviors = [];
        foreach ($this->behaviors() as $name => $behavior) {
            $this->attachBehaviorInternal($name, $behavior);
        }
    }
}

            

                public function get($id, $throwException = true)
{
    if (!isset($this->module)) {
        return parent::get($id, $throwException);
    }
    $component = parent::get($id, false);
    if ($component === null) {
        $component = $this->module->get($id, $throwException);
    }
    return $component;
}

            

                public function getBasePath()
{
    if ($this->_basePath === null) {
        $class = new \ReflectionClass($this);
        $this->_basePath = dirname($class->getFileName());
    }
    return $this->_basePath;
}

            

                public function getBehavior($name)
{
    $this->ensureBehaviors();
    return isset($this->_behaviors[$name]) ? $this->_behaviors[$name] : null;
}

            

                public function getBehaviors()
{
    $this->ensureBehaviors();
    return $this->_behaviors;
}

            

                public function getComponents($returnDefinitions = true)
{
    return $returnDefinitions ? $this->_definitions : $this->_components;
}

            

                public function getControllerPath()
{
    if ($this->_controllerPath === null) {
        $this->_controllerPath = Yii::getAlias('@' . str_replace('\\', '/', $this->controllerNamespace));
    }
    return $this->_controllerPath;
}

            

                public static function getInstance()
{
    $class = get_called_class();
    return isset(Yii::$app->loadedModules[$class]) ? Yii::$app->loadedModules[$class] : null;
}

            

                public function getLayoutPath()
{
    if ($this->_layoutPath === null) {
        $this->_layoutPath = $this->getViewPath() . DIRECTORY_SEPARATOR . 'layouts';
    }
    return $this->_layoutPath;
}

            

                public function getModule($id, $load = true)
{
    if (($pos = strpos($id, '/')) !== false) {
        // sub-module
        $module = $this->getModule(substr($id, 0, $pos));
        return $module === null ? null : $module->getModule(substr($id, $pos + 1), $load);
    }
    if (isset($this->_modules[$id])) {
        if ($this->_modules[$id] instanceof self) {
            return $this->_modules[$id];
        } elseif ($load) {
            Yii::debug("Loading module: $id", __METHOD__);
            /* @var $module Module */
            $module = Yii::createObject($this->_modules[$id], [$id, $this]);
            $module::setInstance($module);
            return $this->_modules[$id] = $module;
        }
    }
    return null;
}

            

                public function getModules($loadedOnly = false)
{
    if ($loadedOnly) {
        $modules = [];
        foreach ($this->_modules as $module) {
            if ($module instanceof self) {
                $modules[] = $module;
            }
        }
        return $modules;
    }
    return $this->_modules;
}

            

                public function getVersion()
{
    if ($this->_version === null) {
        $this->_version = $this->defaultVersion();
    } else {
        if (!is_scalar($this->_version)) {
            $this->_version = call_user_func($this->_version, $this);
        }
    }
    return $this->_version;
}

            

                public function getViewPath()
{
    if ($this->_viewPath === null) {
        $this->_viewPath = $this->getBasePath() . DIRECTORY_SEPARATOR . 'views';
    }
    return $this->_viewPath;
}

            

                public function has($id, $checkInstance = false)
{
    return parent::has($id, $checkInstance) || (isset($this->module) && $this->module->has($id, $checkInstance));
}

            

                public function hasEventHandlers($name)
{
    $this->ensureBehaviors();
    if (!empty($this->_events[$name])) {
        return true;
    }
    foreach ($this->_eventWildcards as $wildcard => $handlers) {
        if (!empty($handlers) && StringHelper::matchWildcard($wildcard, $name)) {
            return true;
        }
    }
    return Event::hasHandlers($this, $name);
}

            

                public function hasMethod($name, $checkBehaviors = true)
{
    if (method_exists($this, $name)) {
        return true;
    } elseif ($checkBehaviors) {
        $this->ensureBehaviors();
        foreach ($this->_behaviors as $behavior) {
            if ($behavior->hasMethod($name)) {
                return true;
            }
        }
    }
    return false;
}

            

                public function hasModule($id)
{
    if (($pos = strpos($id, '/')) !== false) {
        // sub-module
        $module = $this->getModule(substr($id, 0, $pos));
        return $module === null ? false : $module->hasModule(substr($id, $pos + 1));
    }
    return isset($this->_modules[$id]);
}

            

                public function hasProperty($name, $checkVars = true, $checkBehaviors = true)
{
    return $this->canGetProperty($name, $checkVars, $checkBehaviors) || $this->canSetProperty($name, false, $checkBehaviors);
}

            

                public function off($name, $handler = null)
{
    $this->ensureBehaviors();
    if (empty($this->_events[$name]) && empty($this->_eventWildcards[$name])) {
        return false;
    }
    if ($handler === null) {
        unset($this->_events[$name], $this->_eventWildcards[$name]);
        return true;
    }
    $removed = false;
    // plain event names
    if (isset($this->_events[$name])) {
        foreach ($this->_events[$name] as $i => $event) {
            if ($event[0] === $handler) {
                unset($this->_events[$name][$i]);
                $removed = true;
            }
        }
        if ($removed) {
            $this->_events[$name] = array_values($this->_events[$name]);
            return true;
        }
    }
    // wildcard event names
    if (isset($this->_eventWildcards[$name])) {
        foreach ($this->_eventWildcards[$name] as $i => $event) {
            if ($event[0] === $handler) {
                unset($this->_eventWildcards[$name][$i]);
                $removed = true;
            }
        }
        if ($removed) {
            $this->_eventWildcards[$name] = array_values($this->_eventWildcards[$name]);
            // remove empty wildcards to save future redundant regex checks:
            if (empty($this->_eventWildcards[$name])) {
                unset($this->_eventWildcards[$name]);
            }
        }
    }
    return $removed;
}

            

                public function on($name, $handler, $data = null, $append = true)
{
    $this->ensureBehaviors();
    if (strpos($name, '*') !== false) {
        if ($append || empty($this->_eventWildcards[$name])) {
            $this->_eventWildcards[$name][] = [$handler, $data];
        } else {
            array_unshift($this->_eventWildcards[$name], [$handler, $data]);
        }
        return;
    }
    if ($append || empty($this->_events[$name])) {
        $this->_events[$name][] = [$handler, $data];
    } else {
        array_unshift($this->_events[$name], [$handler, $data]);
    }
}

            

                public function runAction($route, $params = [])
{
    $parts = $this->createController($route);
    if (is_array($parts)) {
        /* @var $controller Controller */
        list($controller, $actionID) = $parts;
        $oldController = Yii::$app->controller;
        Yii::$app->controller = $controller;
        $result = $controller->runAction($actionID, $params);
        if ($oldController !== null) {
            Yii::$app->controller = $oldController;
        }
        return $result;
    }
    $id = $this->getUniqueId();
    throw new InvalidRouteException('Unable to resolve the request "' . ($id === '' ? $route : $id . '/' . $route) . '".');
}

            

                public function set($id, $definition)
{
    unset($this->_components[$id]);
    if ($definition === null) {
        unset($this->_definitions[$id]);
        return;
    }
    if (is_object($definition) || is_callable($definition, true)) {
        // an object, a class name, or a PHP callable
        $this->_definitions[$id] = $definition;
    } elseif (is_array($definition)) {
        // a configuration array
        if (isset($definition['__class'])) {
            $this->_definitions[$id] = $definition;
            $this->_definitions[$id]['class'] = $definition['__class'];
            unset($this->_definitions[$id]['__class']);
        } elseif (isset($definition['class'])) {
            $this->_definitions[$id] = $definition;
        } else {
            throw new InvalidConfigException("The configuration for the \"$id\" component must contain a \"class\" element.");
        }
    } else {
        throw new InvalidConfigException("Unexpected configuration type for the \"$id\" component: " . gettype($definition));
    }
}

            

                public function setAliases($aliases)
{
    foreach ($aliases as $name => $alias) {
        Yii::setAlias($name, $alias);
    }
}

            

                public function setComponents($components)
{
    foreach ($components as $id => $component) {
        $this->set($id, $component);
    }
}

            

                public function setControllerPath($path)
{
    $this->_controllerPath = Yii::getAlias($path);
}

            

                public static function setInstance($instance)
{
    if ($instance === null) {
        unset(Yii::$app->loadedModules[get_called_class()]);
    } else {
        Yii::$app->loadedModules[get_class($instance)] = $instance;
    }
}

            

                public function setLayoutPath($path)
{
    $this->_layoutPath = Yii::getAlias($path);
}

            

                public function setModule($id, $module)
{
    if ($module === null) {
        unset($this->_modules[$id]);
    } else {
        $this->_modules[$id] = $module;
        if ($module instanceof self) {
            $module->module = $this;
        }
    }
}

            

                public function setModules($modules)
{
    foreach ($modules as $id => $module) {
        $this->_modules[$id] = $module;
        if ($module instanceof self) {
            $module->module = $this;
        }
    }
}

            

                public function setVersion($version)
{
    $this->_version = $version;
}

            

                public function setViewPath($path)
{
    $this->_viewPath = Yii::getAlias($path);
}

            

                public function trigger($name, Event $event = null)
{
    $this->ensureBehaviors();
    $eventHandlers = [];
    foreach ($this->_eventWildcards as $wildcard => $handlers) {
        if (StringHelper::matchWildcard($wildcard, $name)) {
            $eventHandlers[] = $handlers;
        }
    }
    if (!empty($this->_events[$name])) {
        $eventHandlers[] = $this->_events[$name];
    }
    if (!empty($eventHandlers)) {
        $eventHandlers = call_user_func_array('array_merge', $eventHandlers);
        if ($event === null) {
            $event = new Event();
        }
        if ($event->sender === null) {
            $event->sender = $this;
        }
        $event->handled = false;
        $event->name = $name;
        foreach ($eventHandlers as $handler) {
            $event->data = $handler[1];
            call_user_func($handler[0], $event);
            // stop further handling if the event is handled
            if ($event->handled) {
                return;
            }
        }
    }
    // invoke class-level attached handlers
    Event::trigger($this, $name, $event);
}