| Total Complexity | 55 |
| Total Lines | 304 |
| Duplicated Lines | 0 % |
| Changes | 5 | ||
| Bugs | 0 | Features | 0 |
Complex classes like Container often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Container, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
||
| 29 | class Container implements ContainerInterface, ArrayAccess |
||
| 30 | { |
||
| 31 | use DefinitionBuilder; |
||
| 32 | |||
| 33 | /** |
||
| 34 | * @var CircularDependencyDetection |
||
| 35 | */ |
||
| 36 | protected $circularDependencyDetection; |
||
| 37 | |||
| 38 | /** |
||
| 39 | * @var DefinitionList |
||
| 40 | */ |
||
| 41 | protected $definitions; |
||
| 42 | |||
| 43 | /** |
||
| 44 | * @var ResolvedList |
||
| 45 | */ |
||
| 46 | protected $resolved; |
||
| 47 | |||
| 48 | /** |
||
| 49 | * @var DefinitionDetection |
||
| 50 | */ |
||
| 51 | protected $detection; |
||
| 52 | |||
| 53 | /** |
||
| 54 | * @var DefinitionResolverInterface |
||
| 55 | */ |
||
| 56 | protected $definitionResolver; |
||
| 57 | |||
| 58 | /** |
||
| 59 | * @var ClassResolver |
||
| 60 | */ |
||
| 61 | protected $classResolver; |
||
| 62 | |||
| 63 | /** |
||
| 64 | * @var Reflector |
||
| 65 | */ |
||
| 66 | protected $reflector; |
||
| 67 | |||
| 68 | /** |
||
| 69 | * @var AttributesInjection |
||
| 70 | */ |
||
| 71 | protected $attributesInjection; |
||
| 72 | |||
| 73 | /** |
||
| 74 | * @var ServiceProviderManager |
||
| 75 | */ |
||
| 76 | protected $providers; |
||
| 77 | |||
| 78 | /** |
||
| 79 | * @var ContainerComposite |
||
| 80 | */ |
||
| 81 | protected $delegates; |
||
| 82 | |||
| 83 | /** |
||
| 84 | * @var bool |
||
| 85 | */ |
||
| 86 | protected $defaultShared; |
||
| 87 | |||
| 88 | /** |
||
| 89 | * @var bool |
||
| 90 | */ |
||
| 91 | protected $useAutowire; |
||
| 92 | |||
| 93 | /** |
||
| 94 | * @var bool |
||
| 95 | */ |
||
| 96 | protected $useAttributes; |
||
| 97 | |||
| 98 | public function __construct() |
||
| 99 | { |
||
| 100 | $this->reflector = new Reflector(); |
||
| 101 | $this->useAutowire = true; |
||
| 102 | $this->defaultShared = true; |
||
| 103 | $this->useAttributes = $this->reflector->attributesAvailable(); |
||
| 104 | |||
| 105 | $this->circularDependencyDetection = new CircularDependencyDetection(); |
||
| 106 | $this->definitions = new DefinitionList(); |
||
| 107 | $this->resolved = new ResolvedList(); |
||
| 108 | $this->delegates = new ContainerComposite(); |
||
| 109 | $this->providers = new ServiceProviderManager($this); |
||
| 110 | $this->attributesInjection = new AttributesInjection($this, $this->reflector); |
||
| 111 | $this->classResolver = new ReflectionClassResolver( |
||
| 112 | ParameterResolverChain::default($this, $this->attributesInjection, $this->reflector) |
||
| 113 | ); |
||
| 114 | $this->definitionResolver = new DefinitionResolver($this, $this->resolved, $this->attributesInjection); |
||
| 115 | $this->detection = new AutoDetection($this, $this->classResolver); |
||
| 116 | |||
| 117 | $this->add(ContainerInterface::class, new RawDefinition($this)); |
||
| 118 | $this->add(self::class, new RawDefinition($this)); |
||
| 119 | } |
||
| 120 | |||
| 121 | public function add(string $id, $value = null): DefinitionWrapper |
||
| 122 | { |
||
| 123 | $value = $value === null && count(func_get_args()) === 1 ? $id : $value; |
||
| 124 | $definition = $this->detection->detect($value); |
||
| 125 | $definition->setIdentity($id); |
||
| 126 | |||
| 127 | $this->resolved->delete($id); |
||
| 128 | $this->definitions->add($definition); |
||
| 129 | |||
| 130 | if ($definition instanceof Shareable && $definition->isShared() === null) { |
||
| 131 | $definition->setShared($this->defaultShared); |
||
| 132 | } |
||
| 133 | |||
| 134 | if ($definition instanceof RawDefinition) { |
||
| 135 | $this->resolved->share($id, $definition->getValue()); |
||
| 136 | } |
||
| 137 | |||
| 138 | return new DefinitionWrapper($definition); |
||
| 139 | } |
||
| 140 | |||
| 141 | public function has($id): bool |
||
| 151 | } |
||
| 152 | |||
| 153 | public function get($id) |
||
| 154 | { |
||
| 155 | $this->assertString($id); |
||
| 156 | if ($this->resolved->has($id)) { |
||
| 157 | return $this->resolved->get($id); |
||
| 158 | } |
||
| 159 | |||
| 160 | return |
||
| 161 | $this->circularDependencyDetection->execute($id, function () use ($id) { |
||
| 162 | return $this->resolve($id); |
||
| 163 | }); |
||
| 164 | } |
||
| 165 | |||
| 166 | protected function resolve(string $id) |
||
| 167 | { |
||
| 168 | $this->providers->registerLazyProviderFor($id); |
||
| 169 | |||
| 170 | if ($this->definitions->has($id)) { |
||
| 171 | $definition = $this->definitions->get($id); |
||
| 172 | return $this->definitionResolver->resolve($definition); |
||
| 173 | } |
||
| 174 | |||
| 175 | if ($this->definitions->hasTag($id)) { |
||
| 176 | $tagged = $this->definitions->getTagged($id); |
||
| 177 | return $this->definitionResolver->resolveMany(...$tagged); |
||
| 178 | } |
||
| 179 | |||
| 180 | if ($this->shouldAutowireResolve($id)) { |
||
| 181 | $definition = |
||
| 182 | (new ClassDefinition($id)) |
||
| 183 | ->setIdentity($id) |
||
| 184 | ->setShared($this->defaultShared) |
||
| 185 | ->setClassResolver($this->classResolver); |
||
| 186 | return $this->definitionResolver->resolve($definition); |
||
| 187 | } |
||
| 188 | |||
| 189 | if ($this->delegates->has($id)) { |
||
| 190 | return $this->delegates->get($id); |
||
| 191 | } |
||
| 192 | |||
| 193 | throw NotFoundException::noEntryWasFound($id); |
||
| 194 | } |
||
| 195 | |||
| 196 | public function delete(string $id): void |
||
| 197 | { |
||
| 198 | $this->definitions->delete($id); |
||
| 199 | $this->resolved->delete($id); |
||
| 200 | } |
||
| 201 | |||
| 202 | public function definition(string $id): DefinitionWrapper |
||
| 205 | } |
||
| 206 | |||
| 207 | public function injectDependency($object) |
||
| 210 | } |
||
| 211 | |||
| 212 | /** |
||
| 213 | * @param string|array|\Closure $target |
||
| 214 | * @param array $args |
||
| 215 | * @return mixed |
||
| 216 | * @throws Exception\UnresolvableParameterException |
||
| 217 | * @throws \ReflectionException |
||
| 218 | */ |
||
| 219 | public function invoke($target, array $args = []) |
||
| 220 | { |
||
| 221 | if ((is_string($target) && function_exists($target)) || $target instanceof \Closure) { |
||
| 222 | $reflectionFunction = new \ReflectionFunction($target); |
||
| 223 | $arguments = $this->classResolver->resolveArguments($reflectionFunction, $args); |
||
|
|
|||
| 224 | return $reflectionFunction->invokeArgs($arguments); |
||
| 225 | } |
||
| 226 | |||
| 227 | if (is_object($target) && method_exists($target, '__invoke')) { |
||
| 228 | $target = [$target, "__invoke"]; |
||
| 229 | } |
||
| 230 | |||
| 231 | if (is_string($target) && class_exists($target)) { |
||
| 232 | $target = [$target, "__invoke"]; |
||
| 233 | } |
||
| 234 | |||
| 235 | if (is_array($target) && count($target) === 2) { |
||
| 236 | list($objectOrClass, $method) = $target; |
||
| 237 | $reflectionMethod = new \ReflectionMethod($objectOrClass, $method); |
||
| 238 | $arguments = $this->classResolver->resolveArguments($reflectionMethod, $args); |
||
| 239 | |||
| 240 | if ($reflectionMethod->isStatic()) { |
||
| 241 | $objectOrClass = null; |
||
| 242 | } elseif (is_string($objectOrClass) && $this->has($objectOrClass)) { |
||
| 243 | $objectOrClass = $this->get($objectOrClass); |
||
| 244 | } |
||
| 245 | |||
| 246 | return $reflectionMethod->invokeArgs($objectOrClass, $arguments); |
||
| 247 | } |
||
| 248 | $targetName = is_string($target) ? $target : gettype($target); |
||
| 249 | throw new ContainerException('Target is not invokable: ' . $targetName); |
||
| 250 | } |
||
| 251 | |||
| 252 | public function addProvider(ServiceProvider ...$providers): self |
||
| 253 | { |
||
| 254 | $this->providers->add(...$providers); |
||
| 255 | return $this; |
||
| 256 | } |
||
| 257 | |||
| 258 | public function addDelegate(ContainerInterface $container, ?int $priority = null): self |
||
| 259 | { |
||
| 260 | $this->delegates->add($container, $priority); |
||
| 261 | return $this; |
||
| 262 | } |
||
| 263 | |||
| 264 | public function useDefaultShared(bool $share): self |
||
| 265 | { |
||
| 266 | $this->defaultShared = $share; |
||
| 267 | return $this; |
||
| 268 | } |
||
| 269 | |||
| 270 | public function defaultShared(): bool |
||
| 271 | { |
||
| 272 | return $this->defaultShared; |
||
| 273 | } |
||
| 274 | |||
| 275 | public function autowireEnabled(): bool |
||
| 276 | { |
||
| 277 | return $this->useAutowire; |
||
| 278 | } |
||
| 279 | |||
| 280 | public function useAutowire(bool $enabled): self |
||
| 281 | { |
||
| 282 | $this->useAutowire = $enabled; |
||
| 283 | return $this; |
||
| 284 | } |
||
| 285 | |||
| 286 | public function attributesEnabled(): bool |
||
| 287 | { |
||
| 288 | return $this->useAttributes; |
||
| 289 | } |
||
| 290 | |||
| 291 | public function useAttributes(bool $useAttributes): self |
||
| 292 | { |
||
| 293 | if ($useAttributes) { |
||
| 294 | $this->reflector->assertAttributesAvailable(); |
||
| 295 | } |
||
| 296 | |||
| 297 | $this->useAttributes = $useAttributes; |
||
| 298 | return $this; |
||
| 299 | } |
||
| 300 | |||
| 301 | protected function shouldAutowireResolve($id): bool |
||
| 302 | { |
||
| 303 | return $this->useAutowire && $this->classResolver->canResolve($id); |
||
| 304 | } |
||
| 305 | |||
| 306 | public function offsetExists($offset): bool |
||
| 307 | { |
||
| 308 | return $this->has($offset); |
||
| 309 | } |
||
| 310 | |||
| 311 | public function offsetGet($offset) |
||
| 312 | { |
||
| 313 | return $this->get($offset); |
||
| 314 | } |
||
| 315 | |||
| 316 | public function offsetSet($offset, $value) |
||
| 317 | { |
||
| 318 | $this->add($offset, $value); |
||
| 319 | } |
||
| 320 | |||
| 321 | public function offsetUnset($offset) |
||
| 324 | } |
||
| 325 | |||
| 326 | protected function assertString($value): void |
||
| 327 | { |
||
| 328 | if (!is_string($value)) { |
||
| 329 | throw new ContainerException( |
||
| 330 | sprintf( |
||
| 333 | ) |
||
| 334 | ); |
||
| 335 | } |
||
| 336 | } |
||
| 337 | } |
||
| 338 |