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by Nicolas
10:29 queued 08:07
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Repositories/Cache/CacheTagDecorator.php (1 issue)

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Code
1 
<?php
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namespace Modules\Tag\Repositories\Cache;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Modules\Core\Repositories\Cache\BaseCacheDecorator;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Modules\Tag\Repositories\TagRepository;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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class CacheTagDecorator extends BaseCacheDecorator implements TagRepository

            


            
                                                                                                            
                            
            
                                    
            
            

                
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{

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    public function __construct(TagRepository $tag)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        parent::__construct();

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        $this->entityName = 'tag.tags';

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        $this->repository = $tag;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    /**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * Get all the tags in the given namespace

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @param string $namespace

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @return \Illuminate\Database\Eloquent\Collection

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     */

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    public function allForNamespace($namespace)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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        return $this->cache

            


            
                                                        
            
                                    
            
            

                
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            ->tags($this->entityName, 'global')

            


            
                                                        
            
                                    
            
            

                
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            ->remember("{$this->locale}.{$this->entityName}.allForNamespace.{$namespace}", $this->cacheTime,

            


            
                                                        
            
                                    
            
            

                
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                function () use ($namespace) {

            


            
                                                        
            
                                    
            
            

                
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                    return $this->repository->allForNamespace($namespace);

            


                            

                    
                        
                    
                    
                    
                    
                                                                                                    
                        

                            
                            
1 ignored issue

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            Bug
    
    
    
        introduced 
                            by 
            

        

        

            
        

        

            

                

                    
                
                
            


        

    

    

        
                        

                            
                                
                            
                        

                                        
It seems like you code against a concrete implementation and not the interface Modules\Core\Repositories\BaseRepository as the method allForNamespace() does only exist in the following implementations of said interface: Modules\Tag\Repositories\Cache\CacheTagDecorator, Modules\Tag\Repositories...t\EloquentTagRepository.
                                                                                                                                                                                                        

                    
                                            

                            

                            

                                
                                    
                                
                            


                            
Let’s take a look at an example:


interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}





In the above example, the authenticate() method works fine as long as you just pass
instances of MyUser. However, if you now also want to pass a different implementation
of User which does not have a getDisplayName() method, the code will break.




Available Fixes


  1. Change the type-hint for the parameter:
    

    class AuthSystem
{
    public function authenticate(MyUser $user) { /* ... */ }
}

    

    

    2. 

  2. Add an additional type-check:
    

    class AuthSystem
{
    public function authenticate(User $user)
    {
        if ($user instanceof MyUser) {
            $this->logger->info(/** ... */);
        }

        // or alternatively
        if ( ! $user instanceof MyUser) {
            throw new \LogicException(
                '$user must be an instance of MyUser, '
               .'other instances are not supported.'
            );
        }

    }
}

    

    

    3. 




 Note: PHP Analyzer uses reverse abstract interpretation to narrow down the types
inside the if block in such a case.


  1. Add the method to the interface:
    

    interface User
{
    /** @return string */
    public function getPassword();

    /** @return string */
    public function getDisplayName();
}

    

    

    2. 



                        

                                                    

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