<?php
 
 namespace Illuminate\Support;
 
 use Countable;
 use Illuminate\Contracts\Support\MessageBag as MessageBagContract;
 
 /**
  * @mixin \Illuminate\Contracts\Support\MessageBag
  */
 class ViewErrorBag implements Countable
 {
     /**
      * The array of the view error bags.
      *
      * @var array
      */
     protected $bags = [];
 
     /**
      * Checks if a named MessageBag exists in the bags.
      *
      * @param  string  $key
      * @return bool
      */
     public function hasBag($key = 'default')
     {
         return isset($this->bags[$key]);
     }
 
     /**
      * Get a MessageBag instance from the bags.
      *
      * @param  string  $key
      * @return \Illuminate\Contracts\Support\MessageBag
      */
     public function getBag($key)
     {
         return Arr::get($this->bags, $key) ?: new MessageBag;
     }
 
     /**
      * Get all the bags.
      *
      * @return array
      */
     public function getBags()
     {
         return $this->bags;
     }
 
     /**
      * Add a new MessageBag instance to the bags.
      *
      * @param  string  $key
      * @param  \Illuminate\Contracts\Support\MessageBag  $bag
      * @return $this
      */
     public function put($key, MessageBagContract $bag)
     {
         $this->bags[$key] = $bag;
 
         return $this;
     }
 
     /**
      * Determine if the default message bag has any messages.
      *
      * @return bool
      */
     public function any()
     {
         return $this->count() > 0;
     }
 
     /**
      * Get the number of messages in the default bag.
      *
      * @return int
      */
     public function count()
     {
         return $this->getBag('default')->count();
     }
 
     /**
      * Dynamically call methods on the default bag.
      *
      * @param  string  $method
      * @param  array  $parameters
      * @return mixed
      */
     public function __call($method, $parameters)
     {
         return $this->getBag('default')->$method(...$parameters);
     }
 
     /**
      * Dynamically access a view error bag.
      *
      * @param  string  $key
      * @return \Illuminate\Contracts\Support\MessageBag
      */
     public function __get($key)
     {
         return $this->getBag($key);
     }
 
     /**
      * Dynamically set a view error bag.
      *
      * @param  string  $key
      * @param  \Illuminate\Contracts\Support\MessageBag  $value
      * @return void
      */
     public function __set($key, $value)
     {
         $this->put($key, $value);
     }
 
     /**
      * Convert the default bag to its string representation.
      *
      * @return string
      */
     public function __toString()
     {
         return (string) $this->getBag('default');
     }
 }