| 1 |  |  | <?php declare(strict_types=1); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | namespace League\Container; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | use League\Container\Definition\{DefinitionAggregate, DefinitionInterface, DefinitionAggregateInterface}; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  | use League\Container\Inflector\{InflectorAggregate, InflectorInterface, InflectorAggregateInterface}; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | use League\Container\ServiceProvider\{ServiceProviderAggregate, ServiceProviderAggregateInterface}; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | use Psr\Container\ContainerInterface; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | class Container implements ContainerInterface | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |      * @var \League\Container\Definition\DefinitionAggregateInterface | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |     protected $definitions; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |      * @var \League\Container\ServiceProvider\ServiceProviderAggregateInterface | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |     protected $providers; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |      * @var \League\Container\Inflector\InflectorAggregateInterface | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |     protected $inflectors; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |      * @var \Psr\Container\ContainerInterface | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |     protected $delagates = []; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |      * Construct. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |      * @param \League\Container\Definition\DefinitionAggregateInterface|null           $definitions | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |      * @param \League\Container\ServiceProvider\ServiceProviderAggregateInterface|null $providers | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |      * @param \League\Container\Inflector\InflectorAggregateInterface|null             $inflectors | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 | 12 |  |     public function __construct( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |         DefinitionAggregateInterface      $definitions = null, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |         ServiceProviderAggregateInterface $providers   = null, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |         InflectorAggregateInterface       $inflectors  = null | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |     ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 | 12 |  |         $this->definitions = $definitions ?? (new DefinitionAggregate)->setContainer($this); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 | 12 |  |         $this->providers   = $providers   ?? (new ServiceProviderAggregate)->setContainer($this); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 | 12 |  |         $this->inflectors  = $inflectors  ?? (new InflectorAggregate)->setContainer($this); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 | 12 |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |      * Add an item to the container. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |      * @param string  $id | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |      * @param mixed   $concrete | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |      * @param boolean $shared | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |      * @return \League\Container\Definition\DefinitionInterface | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |     public function add(string $id, $concrete = null, bool $shared = false): DefinitionInterface | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |         $concrete = $concrete ?? $id; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |         return $this->definitions->add($id, $concrete, $shared); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |      * Get a definition to extend. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |      * @param string $id [description] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |      * @return \League\Container\Definition\DefinitionInterface | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |     public function extend(string $id): DefinitionInterface | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |         if ($this->providers->provides($id)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |             $this->providers->register($id); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |         if ($this->definitions->has($id)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |             return $this->definitions->getDefinition($id); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |         throw new NotFoundException( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |             sprintf('Unable to extend alias (%s) as it is not being managed as a definition', $alias) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |         ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |      * Add a service provider. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |      * @param \League\Container\ServiceProvider\ServiceProviderInterface|string $provider | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |      * @return self | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |     public function addServiceProvider($provider): self | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |         $this->providers->add($provider); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |         return $this; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |      * {@inheritdoc} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |     public function get($id, array $args = [], bool $new = false) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |         if ($this->definitions->has($id)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |             $resolved = $this->definitions->resolve($id, $args, $new); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |             return $this->inflectors->inflect($resolved); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |         if ($this->providers->provides($id)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |             $this->providers->register($id); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |             return $this->get($id, $args, $new); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |         foreach ($this->delegates as $delegate) { | 
                            
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                | 117 |  |  |             if ($delegate->has($id)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |                 $resolved = $delegate->get($id, $args); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |                 return $this->inflectors->inflect($resolved); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |             } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 121 |  |  |         } | 
            
                                                                        
                            
            
                                    
            
            
                | 122 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 123 |  |  |         throw new NotFoundException(sprintf('Alias (%s) is not being managed by the container or delegates', $id)); | 
            
                                                                        
                            
            
                                    
            
            
                | 124 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 125 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 126 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 127 |  |  |      * {@inheritdoc} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |     public function has($id): bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |         if ($this->definitions->has($id)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |             return true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |         if ($this->providers->provides($id)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |             return true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  |         foreach ($this->delegates as $delegate) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  |             if ($delegate->has($id)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  |                 return true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  |         return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |      * Allows for manipulation of specific types on resolution. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |      * @param string        $type | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |      * @param callable|null $callback | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  |      * @return \League\Container\Inflector\InflectorInterface | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  |     public function inflector(string $type, callable $callback = null): InflectorInterface | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  |         return $this->inflectors->add($type, $callback); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |      * Delegate a backup container to be checked for services if it | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |      * cannot be resolved via this container. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |      * @param \Psr\Container\ContainerInterface $container | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  |      * @return self | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |     public function delegate(ContainerInterface $container): self | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |         $this->delegates[] = $container; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |         if ($container instanceof ContainerAwareInterface) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |             $container->setContainer($this); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  |         return $this; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 179 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 180 |  |  |  | 
            
                        
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: