| 1 |
<?php |
| 2 |
|
| 3 |
namespace Give\Container; |
| 4 |
|
| 5 |
use ArrayAccess; |
| 6 |
use Closure; |
| 7 |
use Exception; |
| 8 |
use Give\Container\Exceptions\BindingResolutionException; |
| 9 |
use Give\Framework\Exceptions\Primitives\InvalidArgumentException; |
| 10 |
use Give\Framework\Exceptions\Primitives\LogicException; |
| 11 |
use Give\Vendors\StellarWP\ContainerContract\ContainerInterface; |
| 12 |
use ReflectionClass; |
| 13 |
use ReflectionException; |
| 14 |
use ReflectionParameter; |
| 15 |
|
| 16 |
class Container implements ArrayAccess, ContainerInterface |
| 17 |
{ |
| 18 |
/** |
| 19 |
* An array of the types that have been resolved. |
| 20 |
* |
| 21 |
* @var bool[] |
| 22 |
*/ |
| 23 |
protected $resolved = []; |
| 24 |
|
| 25 |
/** |
| 26 |
* The container's bindings. |
| 27 |
* |
| 28 |
* @var array[] |
| 29 |
*/ |
| 30 |
protected $bindings = []; |
| 31 |
|
| 32 |
/** |
| 33 |
* The container's method bindings. |
| 34 |
* |
| 35 |
* @var Closure[] |
| 36 |
*/ |
| 37 |
protected $methodBindings = []; |
| 38 |
|
| 39 |
/** |
| 40 |
* The container's shared instances. |
| 41 |
* |
| 42 |
* @var object[] |
| 43 |
*/ |
| 44 |
protected $instances = []; |
| 45 |
|
| 46 |
/** |
| 47 |
* The registered type aliases. |
| 48 |
* |
| 49 |
* @var string[] |
| 50 |
*/ |
| 51 |
protected $aliases = []; |
| 52 |
|
| 53 |
/** |
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* The registered aliases keyed by the abstract name. |
| 55 |
* |
| 56 |
* @var array[] |
| 57 |
*/ |
| 58 |
protected $abstractAliases = []; |
| 59 |
|
| 60 |
/** |
| 61 |
* The extension closures for services. |
| 62 |
* |
| 63 |
* @var array[] |
| 64 |
*/ |
| 65 |
protected $extenders = []; |
| 66 |
|
| 67 |
/** |
| 68 |
* All of the registered tags. |
| 69 |
* |
| 70 |
* @var array[] |
| 71 |
*/ |
| 72 |
protected $tags = []; |
| 73 |
|
| 74 |
/** |
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* The stack of concretions currently being built. |
| 76 |
* |
| 77 |
* @var array[] |
| 78 |
*/ |
| 79 |
protected $buildStack = []; |
| 80 |
|
| 81 |
/** |
| 82 |
* The parameter override stack. |
| 83 |
* |
| 84 |
* @var array[] |
| 85 |
*/ |
| 86 |
protected $with = []; |
| 87 |
|
| 88 |
/** |
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* All of the registered rebound callbacks. |
| 90 |
* |
| 91 |
* @var array[] |
| 92 |
*/ |
| 93 |
protected $reboundCallbacks = []; |
| 94 |
|
| 95 |
/** |
| 96 |
* All of the global resolving callbacks. |
| 97 |
* |
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* @var Closure[] |
| 99 |
*/ |
| 100 |
protected $globalResolvingCallbacks = []; |
| 101 |
|
| 102 |
/** |
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* All of the global after resolving callbacks. |
| 104 |
* |
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* @var Closure[] |
| 106 |
*/ |
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protected $globalAfterResolvingCallbacks = []; |
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|
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/** |
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* All of the resolving callbacks by class type. |
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* |
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* @var array[] |
| 113 |
*/ |
| 114 |
protected $resolvingCallbacks = []; |
| 115 |
|
| 116 |
/** |
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* All of the after resolving callbacks by class type. |
| 118 |
* |
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* @var array[] |
| 120 |
*/ |
| 121 |
protected $afterResolvingCallbacks = []; |
| 122 |
|
| 123 |
/** |
| 124 |
* Determine if the given abstract type has been bound. |
| 125 |
*/ |
| 126 |
public function bound(string $abstract): bool |
| 127 |
{ |
| 128 |
return isset($this->bindings[$abstract]) || |
| 129 |
isset($this->instances[$abstract]) || |
| 130 |
$this->isAlias($abstract); |
| 131 |
} |
| 132 |
|
| 133 |
/** |
| 134 |
* Returns true if the container can return an entry for the given identifier. |
| 135 |
* Returns false otherwise. |
| 136 |
* |
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* `has($id)` returning true does not mean that `get($id)` will not throw an exception. |
| 138 |
* It does however mean that `get($id)` will not throw a `NotFoundExceptionInterface`. |
| 139 |
*/ |
| 140 |
public function has(string $id): bool |
| 141 |
{ |
| 142 |
return $this->bound($id); |
| 143 |
} |
| 144 |
|
| 145 |
/** |
| 146 |
* Determine if the given abstract type has been resolved. |
| 147 |
*/ |
| 148 |
public function resolved(string $abstract): bool |
| 149 |
{ |
| 150 |
if ($this->isAlias($abstract)) { |
| 151 |
$abstract = $this->getAlias($abstract); |
| 152 |
} |
| 153 |
|
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return isset($this->resolved[$abstract]) || |
| 155 |
isset($this->instances[$abstract]); |
| 156 |
} |
| 157 |
|
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/** |
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* Determine if a given type is shared. |
| 160 |
*/ |
| 161 |
public function isShared(string $abstract): bool |
| 162 |
{ |
| 163 |
return isset($this->instances[$abstract]) || |
| 164 |
(isset($this->bindings[$abstract]['shared']) && |
| 165 |
$this->bindings[$abstract]['shared'] === true); |
| 166 |
} |
| 167 |
|
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/** |
| 169 |
* Determine if a given string is an alias. |
| 170 |
*/ |
| 171 |
public function isAlias(string $name): bool |
| 172 |
{ |
| 173 |
return isset($this->aliases[$name]); |
| 174 |
} |
| 175 |
|
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/** |
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* Register a binding with the container. |
| 178 |
* |
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* @param string $abstract |
| 180 |
* @param Closure|string|null $concrete |
| 181 |
* @param bool $shared |
| 182 |
* |
| 183 |
* @return void |
| 184 |
*/ |
| 185 |
public function bind(string $abstract, $concrete = null, bool $shared = false) |
| 186 |
{ |
| 187 |
$this->dropStaleInstances($abstract); |
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|
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// If no concrete type was given, we will simply set the concrete type to the |
| 190 |
// abstract type. After that, the concrete type to be registered as shared |
| 191 |
// without being forced to state their classes in both of the parameters. |
| 192 |
if (is_null($concrete)) { |
| 193 |
$concrete = $abstract; |
| 194 |
} |
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|
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// If the factory is not a Closure, it means it is just a class name which is |
| 197 |
// bound into this container to the abstract type and we will just wrap it |
| 198 |
// up inside its own Closure to give us more convenience when extending. |
| 199 |
if ( ! $concrete instanceof Closure) { |
| 200 |
if (is_string($concrete) && ($abstract === $concrete || class_exists($concrete) || interface_exists($concrete))) { |
| 201 |
$concrete = $this->getClosure($abstract, $concrete); |
| 202 |
} else { |
| 203 |
$concrete = function () use ($concrete) { |
| 204 |
return $concrete; |
| 205 |
}; |
| 206 |
} |
| 207 |
} |
| 208 |
|
| 209 |
$this->bindings[$abstract] = compact('concrete', 'shared'); |
| 210 |
|
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// If the abstract type was already resolved in this container we'll fire the |
| 212 |
// rebound listener so that any objects which have already gotten resolved |
| 213 |
// can have their copy of the object updated via the listener callbacks. |
| 214 |
if ($this->resolved($abstract)) { |
| 215 |
$this->rebound($abstract); |
| 216 |
} |
| 217 |
} |
| 218 |
|
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/** |
| 220 |
* Get the Closure to be used when building a type. |
| 221 |
*/ |
| 222 |
protected function getClosure(string $abstract, string $concrete): Closure |
| 223 |
{ |
| 224 |
return static function ($container, $parameters = []) use ($abstract, $concrete) { |
| 225 |
if ($abstract == $concrete) { |
| 226 |
return $container->build($concrete); |
| 227 |
} |
| 228 |
|
| 229 |
return $container->resolve( |
| 230 |
$concrete, |
| 231 |
$parameters, |
| 232 |
$raiseEvents = false |
| 233 |
); |
| 234 |
}; |
| 235 |
} |
| 236 |
|
| 237 |
/** |
| 238 |
* Determine if the container has a method binding. |
| 239 |
*/ |
| 240 |
public function hasMethodBinding(string $method): bool |
| 241 |
{ |
| 242 |
return isset($this->methodBindings[$method]); |
| 243 |
} |
| 244 |
|
| 245 |
/** |
| 246 |
* Bind a callback to resolve with Container::call. |
| 247 |
* |
| 248 |
* @param array|string $method |
| 249 |
* @param Closure $callback |
| 250 |
* |
| 251 |
* @return void |
| 252 |
*/ |
| 253 |
public function bindMethod($method, Closure $callback) |
| 254 |
{ |
| 255 |
$this->methodBindings[$this->parseBindMethod($method)] = $callback; |
| 256 |
} |
| 257 |
|
| 258 |
/** |
| 259 |
* Get the method to be bound in class@method format. |
| 260 |
* |
| 261 |
* @param array|string $method |
| 262 |
* |
| 263 |
* @return string |
| 264 |
*/ |
| 265 |
protected function parseBindMethod($method): string |
| 266 |
{ |
| 267 |
if (is_array($method)) { |
| 268 |
return $method[0] . '@' . $method[1]; |
| 269 |
} |
| 270 |
|
| 271 |
return $method; |
| 272 |
} |
| 273 |
|
| 274 |
/** |
| 275 |
* Get the method binding for the given method. |
| 276 |
* |
| 277 |
* @param string $method |
| 278 |
* @param mixed $instance |
| 279 |
* |
| 280 |
* @return mixed |
| 281 |
*/ |
| 282 |
public function callMethodBinding(string $method, $instance) |
| 283 |
{ |
| 284 |
return call_user_func($this->methodBindings[$method], $instance, $this); |
| 285 |
} |
| 286 |
|
| 287 |
/** |
| 288 |
* Register a binding if it hasn't already been registered. |
| 289 |
* |
| 290 |
* @param string $abstract |
| 291 |
* @param Closure|string|null $concrete |
| 292 |
* @param bool $shared |
| 293 |
* |
| 294 |
* @return void |
| 295 |
*/ |
| 296 |
public function bindIf(string $abstract, $concrete = null, bool $shared = false) |
| 297 |
{ |
| 298 |
if ( ! $this->bound($abstract)) { |
| 299 |
$this->bind($abstract, $concrete, $shared); |
| 300 |
} |
| 301 |
} |
| 302 |
|
| 303 |
/** |
| 304 |
* Register a shared binding in the container. |
| 305 |
* |
| 306 |
* @param string $abstract |
| 307 |
* @param Closure|string|null $concrete |
| 308 |
* |
| 309 |
* @return void |
| 310 |
*/ |
| 311 |
public function singleton(string $abstract, $concrete = null) |
| 312 |
{ |
| 313 |
$this->bind($abstract, $concrete, true); |
| 314 |
} |
| 315 |
|
| 316 |
/** |
| 317 |
* Register a shared binding if it hasn't already been registered. |
| 318 |
* |
| 319 |
* @param string $abstract |
| 320 |
* @param Closure|string|null $concrete |
| 321 |
* |
| 322 |
* @return void |
| 323 |
*/ |
| 324 |
public function singletonIf(string $abstract, $concrete = null) |
| 325 |
{ |
| 326 |
if ( ! $this->bound($abstract)) { |
| 327 |
$this->singleton($abstract, $concrete); |
| 328 |
} |
| 329 |
} |
| 330 |
|
| 331 |
/** |
| 332 |
* "Extend" an abstract type in the container. |
| 333 |
* |
| 334 |
* @param string $abstract |
| 335 |
* @param Closure $closure |
| 336 |
* |
| 337 |
* @return void |
| 338 |
* |
| 339 |
* @throws \InvalidArgumentException |
| 340 |
*/ |
| 341 |
public function extend(string $abstract, Closure $closure) |
| 342 |
{ |
| 343 |
$abstract = $this->getAlias($abstract); |
| 344 |
|
| 345 |
if (isset($this->instances[$abstract])) { |
| 346 |
$this->instances[$abstract] = $closure($this->instances[$abstract], $this); |
| 347 |
|
| 348 |
$this->rebound($abstract); |
| 349 |
} else { |
| 350 |
$this->extenders[$abstract][] = $closure; |
| 351 |
|
| 352 |
if ($this->resolved($abstract)) { |
| 353 |
$this->rebound($abstract); |
| 354 |
} |
| 355 |
} |
| 356 |
} |
| 357 |
|
| 358 |
/** |
| 359 |
* Register an existing instance as shared in the container. |
| 360 |
* |
| 361 |
* @param string $abstract |
| 362 |
* @param mixed $instance |
| 363 |
* |
| 364 |
* @return mixed |
| 365 |
*/ |
| 366 |
public function instance(string $abstract, $instance) |
| 367 |
{ |
| 368 |
$this->removeAbstractAlias($abstract); |
| 369 |
|
| 370 |
$isBound = $this->bound($abstract); |
| 371 |
|
| 372 |
unset($this->aliases[$abstract]); |
| 373 |
|
| 374 |
// We'll check to determine if this type has been bound before, and if it has |
| 375 |
// we will fire the rebound callbacks registered with the container and it |
| 376 |
// can be updated with consuming classes that have gotten resolved here. |
| 377 |
$this->instances[$abstract] = $instance; |
| 378 |
|
| 379 |
if ($isBound) { |
| 380 |
$this->rebound($abstract); |
| 381 |
} |
| 382 |
|
| 383 |
return $instance; |
| 384 |
} |
| 385 |
|
| 386 |
/** |
| 387 |
* Remove an alias from the contextual binding alias cache. |
| 388 |
* |
| 389 |
* @return void |
| 390 |
*/ |
| 391 |
protected function removeAbstractAlias(string $searched) |
| 392 |
{ |
| 393 |
if ( ! isset($this->aliases[$searched])) { |
| 394 |
return; |
| 395 |
} |
| 396 |
|
| 397 |
foreach ($this->abstractAliases as $abstract => $aliases) { |
| 398 |
foreach ($aliases as $index => $alias) { |
| 399 |
if ($alias == $searched) { |
| 400 |
unset($this->abstractAliases[$abstract][$index]); |
| 401 |
} |
| 402 |
} |
| 403 |
} |
| 404 |
} |
| 405 |
|
| 406 |
/** |
| 407 |
* Assign a set of tags to a given binding. |
| 408 |
* |
| 409 |
* @param array|string $abstracts |
| 410 |
* @param array|mixed ...$tags |
| 411 |
* |
| 412 |
* @return void |
| 413 |
*/ |
| 414 |
public function tag($abstracts, $tags) |
| 415 |
{ |
| 416 |
$tags = is_array($tags) ? $tags : array_slice(func_get_args(), 1); |
| 417 |
|
| 418 |
foreach ($tags as $tag) { |
| 419 |
if ( ! isset($this->tags[$tag])) { |
| 420 |
$this->tags[$tag] = []; |
| 421 |
} |
| 422 |
|
| 423 |
foreach ((array)$abstracts as $abstract) { |
| 424 |
$this->tags[$tag][] = $abstract; |
| 425 |
} |
| 426 |
} |
| 427 |
} |
| 428 |
|
| 429 |
/** |
| 430 |
* Alias a type to a different name. |
| 431 |
* |
| 432 |
* @return void |
| 433 |
* |
| 434 |
* @throws LogicException |
| 435 |
*/ |
| 436 |
public function alias(string $abstract, string $alias) |
| 437 |
{ |
| 438 |
if ($alias === $abstract) { |
| 439 |
throw new LogicException("[{$abstract}] is aliased to itself."); |
| 440 |
} |
| 441 |
|
| 442 |
$this->aliases[$alias] = $abstract; |
| 443 |
|
| 444 |
$this->abstractAliases[$abstract][] = $alias; |
| 445 |
} |
| 446 |
|
| 447 |
/** |
| 448 |
* Bind a new callback to an abstract's rebind event. |
| 449 |
* |
| 450 |
* @param string $abstract |
| 451 |
* @param Closure $callback |
| 452 |
* |
| 453 |
* @return mixed |
| 454 |
*/ |
| 455 |
public function rebinding(string $abstract, Closure $callback) |
| 456 |
{ |
| 457 |
$this->reboundCallbacks[$abstract = $this->getAlias($abstract)][] = $callback; |
| 458 |
|
| 459 |
if ($this->bound($abstract)) { |
| 460 |
return $this->make($abstract); |
| 461 |
} |
| 462 |
|
| 463 |
return null; |
| 464 |
} |
| 465 |
|
| 466 |
/** |
| 467 |
* Refresh an instance on the given target and method. |
| 468 |
* |
| 469 |
* @param string $abstract |
| 470 |
* @param mixed $target |
| 471 |
* @param string $method |
| 472 |
* |
| 473 |
* @return mixed |
| 474 |
*/ |
| 475 |
public function refresh(string $abstract, $target, string $method) |
| 476 |
{ |
| 477 |
return $this->rebinding( |
| 478 |
$abstract, |
| 479 |
function ($app, $instance) use ($target, $method) { |
| 480 |
$target->{$method}($instance); |
| 481 |
} |
| 482 |
); |
| 483 |
} |
| 484 |
|
| 485 |
/** |
| 486 |
* Fire the "rebound" callbacks for the given abstract type. |
| 487 |
* |
| 488 |
* @return void |
| 489 |
*/ |
| 490 |
protected function rebound(string $abstract) |
| 491 |
{ |
| 492 |
$instance = $this->make($abstract); |
| 493 |
|
| 494 |
foreach ($this->getReboundCallbacks($abstract) as $callback) { |
| 495 |
$callback($this, $instance); |
| 496 |
} |
| 497 |
} |
| 498 |
|
| 499 |
/** |
| 500 |
* Get the rebound callbacks for a given type. |
| 501 |
*/ |
| 502 |
protected function getReboundCallbacks(string $abstract): array |
| 503 |
{ |
| 504 |
return $this->reboundCallbacks[$abstract] ?? []; |
| 505 |
} |
| 506 |
|
| 507 |
/** |
| 508 |
* Get a closure to resolve the given type from the container. |
| 509 |
*/ |
| 510 |
public function factory(string $abstract): Closure |
| 511 |
{ |
| 512 |
return function () use ($abstract) { |
| 513 |
return $this->make($abstract); |
| 514 |
}; |
| 515 |
} |
| 516 |
|
| 517 |
/** |
| 518 |
* Resolve the given type from the container. |
| 519 |
* |
| 520 |
* @template T |
| 521 |
* |
| 522 |
* @param class-string<T> $abstract |
| 523 |
* @param array $parameters |
| 524 |
* |
| 525 |
* @return T|mixed |
| 526 |
*/ |
| 527 |
public function make(string $abstract, array $parameters = []) |
| 528 |
{ |
| 529 |
return $this->resolve($abstract, $parameters); |
| 530 |
} |
| 531 |
|
| 532 |
/** |
| 533 |
* Finds an entry of the container by its identifier and returns it. |
| 534 |
* |
| 535 |
* @template T |
| 536 |
* |
| 537 |
* @param class-string<T> $id Identifier of the entry to look for. |
| 538 |
* |
| 539 |
* @return T|mixed Entry. |
| 540 |
* @throws InvalidArgumentException|BindingResolutionException |
| 541 |
*/ |
| 542 |
public function get(string $id) |
| 543 |
{ |
| 544 |
try { |
| 545 |
return $this->resolve($id); |
| 546 |
} catch (Exception $e) { |
| 547 |
if ($this->has($id)) { |
| 548 |
throw $e; |
| 549 |
} |
| 550 |
|
| 551 |
throw new InvalidArgumentException($id, $e->getCode(), $e); |
| 552 |
} |
| 553 |
} |
| 554 |
|
| 555 |
/** |
| 556 |
* Resolve the given type from the container. |
| 557 |
* |
| 558 |
* @template T |
| 559 |
* |
| 560 |
* @param class-string<T> $abstract |
| 561 |
* |
| 562 |
* @return T|mixed |
| 563 |
* @throws BindingResolutionException |
| 564 |
*/ |
| 565 |
protected function resolve(string $abstract, array $parameters = [], bool $raiseEvents = true) |
| 566 |
{ |
| 567 |
$abstract = $this->getAlias($abstract); |
| 568 |
|
| 569 |
$concrete = null; |
| 570 |
|
| 571 |
$needsContextualBuild = false; |
| 572 |
|
| 573 |
// If an instance of the type is currently being managed as a singleton we'll |
| 574 |
// just return an existing instance instead of instantiating new instances |
| 575 |
// so the developer can keep using the same objects instance every time. |
| 576 |
if (isset($this->instances[$abstract])) { |
| 577 |
return $this->instances[$abstract]; |
| 578 |
} |
| 579 |
|
| 580 |
$this->with[] = $parameters; |
| 581 |
|
| 582 |
if (is_null($concrete)) { |
| 583 |
$concrete = $this->getConcrete($abstract); |
| 584 |
} |
| 585 |
|
| 586 |
// We're ready to instantiate an instance of the concrete type registered for |
| 587 |
// the binding. This will instantiate the types, as well as resolve any of |
| 588 |
// its "nested" dependencies recursively until all have gotten resolved. |
| 589 |
if ($this->isBuildable($concrete, $abstract)) { |
| 590 |
$object = $this->build($concrete); |
| 591 |
} else { |
| 592 |
$object = $this->make($concrete); |
| 593 |
} |
| 594 |
|
| 595 |
// If we defined any extenders for this type, we'll need to spin through them |
| 596 |
// and apply them to the object being built. This allows for the extension |
| 597 |
// of services, such as changing configuration or decorating the object. |
| 598 |
foreach ($this->getExtenders($abstract) as $extender) { |
| 599 |
$object = $extender($object, $this); |
| 600 |
} |
| 601 |
|
| 602 |
// If the requested type is registered as a singleton we'll want to cache off |
| 603 |
// the instances in "memory" so we can return it later without creating an |
| 604 |
// entirely new instance of an object on each subsequent request for it. |
| 605 |
if ($this->isShared($abstract)) { |
| 606 |
$this->instances[$abstract] = $object; |
| 607 |
} |
| 608 |
|
| 609 |
if ($raiseEvents) { |
| 610 |
$this->fireResolvingCallbacks($abstract, $object); |
| 611 |
} |
| 612 |
|
| 613 |
// Before returning, we will also set the resolved flag to "true" and pop off |
| 614 |
// the parameter overrides for this build. After those two things are done |
| 615 |
// we will be ready to return back the fully constructed class instance. |
| 616 |
$this->resolved[$abstract] = true; |
| 617 |
|
| 618 |
array_pop($this->with); |
| 619 |
|
| 620 |
return $object; |
| 621 |
} |
| 622 |
|
| 623 |
/** |
| 624 |
* Get the concrete type for a given abstract. |
| 625 |
* |
| 626 |
* @return mixed |
| 627 |
*/ |
| 628 |
protected function getConcrete(string $abstract) |
| 629 |
{ |
| 630 |
// If we don't have a registered resolver or concrete for the type, we'll just |
| 631 |
// assume each type is a concrete name and will attempt to resolve it as is |
| 632 |
// since the container should be able to resolve concretes automatically. |
| 633 |
if (isset($this->bindings[$abstract])) { |
| 634 |
return $this->bindings[$abstract]['concrete']; |
| 635 |
} |
| 636 |
|
| 637 |
return $abstract; |
| 638 |
} |
| 639 |
|
| 640 |
/** |
| 641 |
* Determine if the given concrete is buildable. |
| 642 |
* |
| 643 |
* @param mixed $concrete |
| 644 |
* @param string $abstract |
| 645 |
* |
| 646 |
* @return bool |
| 647 |
*/ |
| 648 |
protected function isBuildable($concrete, string $abstract): bool |
| 649 |
{ |
| 650 |
return $concrete === $abstract || $concrete instanceof Closure; |
| 651 |
} |
| 652 |
|
| 653 |
/** |
| 654 |
* Instantiate a concrete instance of the given type. |
| 655 |
* |
| 656 |
* @param Closure|string $concrete |
| 657 |
* |
| 658 |
* @return mixed |
| 659 |
* @throws BindingResolutionException |
| 660 |
* @throws ReflectionException |
| 661 |
*/ |
| 662 |
public function build($concrete) |
| 663 |
{ |
| 664 |
// If the concrete type is actually a Closure, we will just execute it and |
| 665 |
// hand back the results of the functions, which allows functions to be |
| 666 |
// used as resolvers for more fine-tuned resolution of these objects. |
| 667 |
if ($concrete instanceof Closure) { |
| 668 |
return $concrete($this, $this->getLastParameterOverride()); |
| 669 |
} |
| 670 |
|
| 671 |
try { |
| 672 |
$reflector = new ReflectionClass($concrete); |
| 673 |
} catch (ReflectionException $e) { |
| 674 |
throw new InvalidArgumentException("Target class [$concrete] does not exist.", 0, $e); |
| 675 |
} |
| 676 |
|
| 677 |
// If the type is not instantiable, the developer is attempting to resolve |
| 678 |
// an abstract type such as an Interface or Abstract Class and there is |
| 679 |
// no binding registered for the abstractions so we need to bail out. |
| 680 |
if ( ! $reflector->isInstantiable()) { |
| 681 |
$this->notInstantiable($concrete); |
| 682 |
} |
| 683 |
|
| 684 |
$this->buildStack[] = $concrete; |
| 685 |
|
| 686 |
$constructor = $reflector->getConstructor(); |
| 687 |
|
| 688 |
// If there are no constructors, that means there are no dependencies then |
| 689 |
// we can just resolve the instances of the objects right away, without |
| 690 |
// resolving any other types or dependencies out of these containers. |
| 691 |
if (is_null($constructor)) { |
| 692 |
array_pop($this->buildStack); |
| 693 |
|
| 694 |
return new $concrete(); |
| 695 |
} |
| 696 |
|
| 697 |
$dependencies = $constructor->getParameters(); |
| 698 |
|
| 699 |
// Once we have all the constructor's parameters we can create each of the |
| 700 |
// dependency instances and then use the reflection instances to make a |
| 701 |
// new instance of this class, injecting the created dependencies in. |
| 702 |
try { |
| 703 |
$instances = $this->resolveDependencies($dependencies); |
| 704 |
} catch (BindingResolutionException $e) { |
| 705 |
array_pop($this->buildStack); |
| 706 |
|
| 707 |
throw $e; |
| 708 |
} |
| 709 |
|
| 710 |
array_pop($this->buildStack); |
| 711 |
|
| 712 |
return $reflector->newInstanceArgs($instances); |
| 713 |
} |
| 714 |
|
| 715 |
/** |
| 716 |
* Resolve all the dependencies from the ReflectionParameters. |
| 717 |
* |
| 718 |
* @throws BindingResolutionException |
| 719 |
* @throws ReflectionException |
| 720 |
*/ |
| 721 |
protected function resolveDependencies(array $dependencies): array |
| 722 |
{ |
| 723 |
$results = []; |
| 724 |
|
| 725 |
foreach ($dependencies as $dependency) { |
| 726 |
// If this dependency has a override for this particular build we will use |
| 727 |
// that instead as the value. Otherwise, we will continue with this run |
| 728 |
// of resolutions and let reflection attempt to determine the result. |
| 729 |
if ($this->hasParameterOverride($dependency)) { |
| 730 |
$results[] = $this->getParameterOverride($dependency); |
| 731 |
|
| 732 |
continue; |
| 733 |
} |
| 734 |
|
| 735 |
$name = $this->getParameterClassName($dependency); |
| 736 |
|
| 737 |
// If the class is null, it means the dependency is a string or some other |
| 738 |
// primitive type which we can not resolve since it is not a class and |
| 739 |
// we will just bomb out with an error since we have no-where to go. |
| 740 |
$result = is_null($name) |
| 741 |
? $this->resolvePrimitive($dependency) |
| 742 |
: $this->resolveClass($dependency); |
| 743 |
|
| 744 |
if ($dependency->isVariadic()) { |
| 745 |
array_push($results, ...$result); |
| 746 |
} else { |
| 747 |
$results[] = $result; |
| 748 |
} |
| 749 |
} |
| 750 |
|
| 751 |
return $results; |
| 752 |
} |
| 753 |
|
| 754 |
/** |
| 755 |
* Determine if the given dependency has a parameter override. |
| 756 |
*/ |
| 757 |
protected function hasParameterOverride(ReflectionParameter $dependency): bool |
| 758 |
{ |
| 759 |
return array_key_exists( |
| 760 |
$dependency->name, |
| 761 |
$this->getLastParameterOverride() |
| 762 |
); |
| 763 |
} |
| 764 |
|
| 765 |
/** |
| 766 |
* Get a parameter override for a dependency. |
| 767 |
* |
| 768 |
* @return mixed |
| 769 |
*/ |
| 770 |
protected function getParameterOverride(ReflectionParameter $dependency) |
| 771 |
{ |
| 772 |
return $this->getLastParameterOverride()[$dependency->name]; |
| 773 |
} |
| 774 |
|
| 775 |
/** |
| 776 |
* Get the last parameter override. |
| 777 |
*/ |
| 778 |
protected function getLastParameterOverride(): array |
| 779 |
{ |
| 780 |
return count($this->with) ? end($this->with) : []; |
| 781 |
} |
| 782 |
|
| 783 |
/** |
| 784 |
* Resolve a non-class hinted primitive dependency. |
| 785 |
* |
| 786 |
* @param ReflectionParameter $parameter |
| 787 |
* |
| 788 |
* @return mixed |
| 789 |
* @throws BindingResolutionException |
| 790 |
*/ |
| 791 |
protected function resolvePrimitive(ReflectionParameter $parameter) |
| 792 |
{ |
| 793 |
if ($parameter->isDefaultValueAvailable()) { |
| 794 |
return $parameter->getDefaultValue(); |
| 795 |
} |
| 796 |
|
| 797 |
$this->unresolvablePrimitive($parameter); |
| 798 |
} |
| 799 |
|
| 800 |
/** |
| 801 |
* Resolve a class based dependency from the container. |
| 802 |
* |
| 803 |
* @param ReflectionParameter $parameter |
| 804 |
* |
| 805 |
* @return mixed |
| 806 |
* @throws BindingResolutionException |
| 807 |
* @throws ReflectionException |
| 808 |
*/ |
| 809 |
protected function resolveClass(ReflectionParameter $parameter) |
| 810 |
{ |
| 811 |
try { |
| 812 |
$class = $this->getParameterClassName($parameter); |
| 813 |
|
| 814 |
if (is_null($class)) { |
| 815 |
throw new BindingResolutionException(); |
| 816 |
} |
| 817 |
|
| 818 |
return $this->make($class); |
| 819 |
} |
| 820 |
|
| 821 |
// If we can not resolve the class instance, we will check to see if the value |
| 822 |
// is optional, and if it is we will return the optional parameter value as |
| 823 |
// the value of the dependency, similarly to how we do this with scalars. |
| 824 |
catch (BindingResolutionException $e) { |
| 825 |
if ($parameter->isDefaultValueAvailable()) { |
| 826 |
return $parameter->getDefaultValue(); |
| 827 |
} |
| 828 |
|
| 829 |
if ($parameter->isVariadic()) { |
| 830 |
return []; |
| 831 |
} |
| 832 |
|
| 833 |
throw $e; |
| 834 |
} |
| 835 |
} |
| 836 |
|
| 837 |
/** |
| 838 |
* Throw an exception that the concrete is not instantiable. |
| 839 |
* |
| 840 |
* @param string $concrete |
| 841 |
* |
| 842 |
* @return void |
| 843 |
* @throws BindingResolutionException |
| 844 |
*/ |
| 845 |
protected function notInstantiable(string $concrete) |
| 846 |
{ |
| 847 |
if ( ! empty($this->buildStack)) { |
| 848 |
$previous = implode(', ', $this->buildStack); |
| 849 |
|
| 850 |
$message = "Target [$concrete] is not instantiable while building [$previous]."; |
| 851 |
} else { |
| 852 |
$message = "Target [$concrete] is not instantiable."; |
| 853 |
} |
| 854 |
|
| 855 |
throw new BindingResolutionException($message); |
| 856 |
} |
| 857 |
|
| 858 |
/** |
| 859 |
* Throw an exception for an unresolvable primitive. |
| 860 |
* |
| 861 |
* @param ReflectionParameter $parameter |
| 862 |
* |
| 863 |
* @return void |
| 864 |
* @throws BindingResolutionException |
| 865 |
*/ |
| 866 |
protected function unresolvablePrimitive(ReflectionParameter $parameter) |
| 867 |
{ |
| 868 |
$message = "Unresolvable dependency resolving [$parameter] in class {$parameter->getDeclaringClass()->getName()}"; |
| 869 |
|
| 870 |
throw new BindingResolutionException($message); |
| 871 |
} |
| 872 |
|
| 873 |
/** |
| 874 |
* Register a new resolving callback. |
| 875 |
* |
| 876 |
* @param Closure|string $abstract |
| 877 |
* @param Closure|null $callback |
| 878 |
* |
| 879 |
* @return void |
| 880 |
*/ |
| 881 |
public function resolving($abstract, Closure $callback = null) |
| 882 |
{ |
| 883 |
if (is_string($abstract)) { |
| 884 |
$abstract = $this->getAlias($abstract); |
| 885 |
} |
| 886 |
|
| 887 |
if (is_null($callback) && $abstract instanceof Closure) { |
| 888 |
$this->globalResolvingCallbacks[] = $abstract; |
| 889 |
} else { |
| 890 |
$this->resolvingCallbacks[$abstract][] = $callback; |
| 891 |
} |
| 892 |
} |
| 893 |
|
| 894 |
/** |
| 895 |
* Register a new after resolving callback for all types. |
| 896 |
* |
| 897 |
* @param Closure|string $abstract |
| 898 |
* @param Closure|null $callback |
| 899 |
* |
| 900 |
* @return void |
| 901 |
*/ |
| 902 |
public function afterResolving($abstract, Closure $callback = null) |
| 903 |
{ |
| 904 |
if (is_string($abstract)) { |
| 905 |
$abstract = $this->getAlias($abstract); |
| 906 |
} |
| 907 |
|
| 908 |
if ($abstract instanceof Closure && is_null($callback)) { |
| 909 |
$this->globalAfterResolvingCallbacks[] = $abstract; |
| 910 |
} else { |
| 911 |
$this->afterResolvingCallbacks[$abstract][] = $callback; |
| 912 |
} |
| 913 |
} |
| 914 |
|
| 915 |
/** |
| 916 |
* Fire all of the resolving callbacks. |
| 917 |
* |
| 918 |
* @param string $abstract |
| 919 |
* @param mixed $object |
| 920 |
* |
| 921 |
* @return void |
| 922 |
*/ |
| 923 |
protected function fireResolvingCallbacks($abstract, $object) |
| 924 |
{ |
| 925 |
$this->fireCallbackArray($object, $this->globalResolvingCallbacks); |
| 926 |
|
| 927 |
$this->fireCallbackArray( |
| 928 |
$object, |
| 929 |
$this->getCallbacksForType($abstract, $object, $this->resolvingCallbacks) |
| 930 |
); |
| 931 |
|
| 932 |
$this->fireAfterResolvingCallbacks($abstract, $object); |
| 933 |
} |
| 934 |
|
| 935 |
/** |
| 936 |
* Fire all of the after resolving callbacks. |
| 937 |
* |
| 938 |
* @param string $abstract |
| 939 |
* @param mixed $object |
| 940 |
* |
| 941 |
* @return void |
| 942 |
*/ |
| 943 |
protected function fireAfterResolvingCallbacks($abstract, $object) |
| 944 |
{ |
| 945 |
$this->fireCallbackArray($object, $this->globalAfterResolvingCallbacks); |
| 946 |
|
| 947 |
$this->fireCallbackArray( |
| 948 |
$object, |
| 949 |
$this->getCallbacksForType($abstract, $object, $this->afterResolvingCallbacks) |
| 950 |
); |
| 951 |
} |
| 952 |
|
| 953 |
/** |
| 954 |
* Get all callbacks for a given type. |
| 955 |
* |
| 956 |
* @param string $abstract |
| 957 |
* @param object $object |
| 958 |
* @param array $callbacksPerType |
| 959 |
* |
| 960 |
* @return array |
| 961 |
*/ |
| 962 |
protected function getCallbacksForType(string $abstract, $object, array $callbacksPerType): array |
| 963 |
{ |
| 964 |
$results = []; |
| 965 |
|
| 966 |
foreach ($callbacksPerType as $type => $callbacks) { |
| 967 |
if ($type === $abstract || $object instanceof $type) { |
| 968 |
array_push($results, ...$callbacks); |
| 969 |
} |
| 970 |
} |
| 971 |
|
| 972 |
return $results; |
| 973 |
} |
| 974 |
|
| 975 |
/** |
| 976 |
* Fire an array of callbacks with an object. |
| 977 |
* |
| 978 |
* @param mixed $object |
| 979 |
* @param array $callbacks |
| 980 |
* |
| 981 |
* @return void |
| 982 |
*/ |
| 983 |
protected function fireCallbackArray($object, array $callbacks) |
| 984 |
{ |
| 985 |
foreach ($callbacks as $callback) { |
| 986 |
$callback($object, $this); |
| 987 |
} |
| 988 |
} |
| 989 |
|
| 990 |
/** |
| 991 |
* Retrieves the class name of a given parameter with respect to the PHP version |
| 992 |
* |
| 993 |
* @param ReflectionParameter $parameter |
| 994 |
* |
| 995 |
* @return string |
| 996 |
*/ |
| 997 |
protected function getParameterClassName(ReflectionParameter $parameter) |
| 998 |
{ |
| 999 |
// Use ReflectionParameter::getClass() prior to its replacement in PHP 7.1 |
| 1000 |
if (version_compare(PHP_VERSION, '7.1', '<')) { |
| 1001 |
$class = $parameter->getClass(); |
| 1002 |
|
| 1003 |
return $class ? $class->name : null; |
| 1004 |
} |
| 1005 |
|
| 1006 |
$type = $parameter->getType(); |
| 1007 |
|
| 1008 |
if (! $type instanceof \ReflectionNamedType || $type->isBuiltin()) { |
| 1009 |
return null; |
| 1010 |
} |
| 1011 |
|
| 1012 |
return $type->getName(); |
| 1013 |
} |
| 1014 |
|
| 1015 |
/** |
| 1016 |
* Get the container's bindings. |
| 1017 |
*/ |
| 1018 |
public function getBindings(): array |
| 1019 |
{ |
| 1020 |
return $this->bindings; |
| 1021 |
} |
| 1022 |
|
| 1023 |
/** |
| 1024 |
* Get the alias for an abstract if available. |
| 1025 |
*/ |
| 1026 |
public function getAlias(string $abstract): string |
| 1027 |
{ |
| 1028 |
if ( ! isset($this->aliases[$abstract])) { |
| 1029 |
return $abstract; |
| 1030 |
} |
| 1031 |
|
| 1032 |
return $this->getAlias($this->aliases[$abstract]); |
| 1033 |
} |
| 1034 |
|
| 1035 |
/** |
| 1036 |
* Get the extender callbacks for a given type. |
| 1037 |
*/ |
| 1038 |
protected function getExtenders(string $abstract): array |
| 1039 |
{ |
| 1040 |
$abstract = $this->getAlias($abstract); |
| 1041 |
|
| 1042 |
return $this->extenders[$abstract] ?? []; |
| 1043 |
} |
| 1044 |
|
| 1045 |
/** |
| 1046 |
* Remove all the extender callbacks for a given type. |
| 1047 |
* |
| 1048 |
* @return void |
| 1049 |
*/ |
| 1050 |
public function forgetExtenders(string $abstract) |
| 1051 |
{ |
| 1052 |
unset($this->extenders[$this->getAlias($abstract)]); |
| 1053 |
} |
| 1054 |
|
| 1055 |
/** |
| 1056 |
* Drop all the stale instances and aliases. |
| 1057 |
* |
| 1058 |
* @param string $abstract |
| 1059 |
* |
| 1060 |
* @return void |
| 1061 |
*/ |
| 1062 |
protected function dropStaleInstances(string $abstract) |
| 1063 |
{ |
| 1064 |
unset($this->instances[$abstract], $this->aliases[$abstract]); |
| 1065 |
} |
| 1066 |
|
| 1067 |
/** |
| 1068 |
* Remove a resolved instance from the instance cache. |
| 1069 |
* |
| 1070 |
* @return void |
| 1071 |
*/ |
| 1072 |
public function forgetInstance(string $abstract) |
| 1073 |
{ |
| 1074 |
unset($this->instances[$abstract]); |
| 1075 |
} |
| 1076 |
|
| 1077 |
/** |
| 1078 |
* Clear all the instances from the container. |
| 1079 |
* |
| 1080 |
* @return void |
| 1081 |
*/ |
| 1082 |
public function forgetInstances() |
| 1083 |
{ |
| 1084 |
$this->instances = []; |
| 1085 |
} |
| 1086 |
|
| 1087 |
/** |
| 1088 |
* Flush the container of all bindings and resolved instances. |
| 1089 |
* |
| 1090 |
* @return void |
| 1091 |
*/ |
| 1092 |
public function flush() |
| 1093 |
{ |
| 1094 |
$this->aliases = []; |
| 1095 |
$this->resolved = []; |
| 1096 |
$this->bindings = []; |
| 1097 |
$this->instances = []; |
| 1098 |
$this->abstractAliases = []; |
| 1099 |
} |
| 1100 |
|
| 1101 |
/** |
| 1102 |
* Determine if a given offset exists. |
| 1103 |
* |
| 1104 |
* @param string $key |
| 1105 |
* |
| 1106 |
* @return bool |
| 1107 |
*/ |
| 1108 |
#[\ReturnTypeWillChange] |
| 1109 |
public function offsetExists($key) |
| 1110 |
{ |
| 1111 |
return $this->bound($key); |
| 1112 |
} |
| 1113 |
|
| 1114 |
/** |
| 1115 |
* Get the value at a given offset. |
| 1116 |
* |
| 1117 |
* @param string $key |
| 1118 |
* |
| 1119 |
* @return mixed |
| 1120 |
*/ |
| 1121 |
#[\ReturnTypeWillChange] |
| 1122 |
public function offsetGet($key) |
| 1123 |
{ |
| 1124 |
return $this->make($key); |
| 1125 |
} |
| 1126 |
|
| 1127 |
/** |
| 1128 |
* Set the value at a given offset. |
| 1129 |
* |
| 1130 |
* @param string $key |
| 1131 |
* @param mixed $value |
| 1132 |
* |
| 1133 |
* @return void |
| 1134 |
*/ |
| 1135 |
#[\ReturnTypeWillChange] |
| 1136 |
public function offsetSet($key, $value) |
| 1137 |
{ |
| 1138 |
$this->bind( |
| 1139 |
$key, |
| 1140 |
$value instanceof Closure ? $value : static function () use ($value) { |
| 1141 |
return $value; |
| 1142 |
} |
| 1143 |
); |
| 1144 |
} |
| 1145 |
|
| 1146 |
/** |
| 1147 |
* Unset the value at a given offset. |
| 1148 |
* |
| 1149 |
* @param string $key |
| 1150 |
* |
| 1151 |
* @return void |
| 1152 |
*/ |
| 1153 |
#[\ReturnTypeWillChange] |
| 1154 |
public function offsetUnset($key) |
| 1155 |
{ |
| 1156 |
unset($this->bindings[$key], $this->instances[$key], $this->resolved[$key]); |
| 1157 |
} |
| 1158 |
|
| 1159 |
/** |
| 1160 |
* Dynamically access container services. |
| 1161 |
* |
| 1162 |
* @param string $key |
| 1163 |
* |
| 1164 |
* @return mixed |
| 1165 |
*/ |
| 1166 |
public function __get(string $key) |
| 1167 |
{ |
| 1168 |
return $this[$key]; |
| 1169 |
} |
| 1170 |
|
| 1171 |
/** |
| 1172 |
* Dynamically set container services. |
| 1173 |
* |
| 1174 |
* @param string $key |
| 1175 |
* @param mixed $value |
| 1176 |
* |
| 1177 |
* @return void |
| 1178 |
*/ |
| 1179 |
public function __set(string $key, $value) |
| 1180 |
{ |
| 1181 |
$this[$key] = $value; |
| 1182 |
} |
| 1183 |
|
| 1184 |
/** |
| 1185 |
* Checks to see if the key exists. |
| 1186 |
* |
| 1187 |
* @param $key |
| 1188 |
* |
| 1189 |
* @return bool |
| 1190 |
*/ |
| 1191 |
public function __isset($key): bool |
| 1192 |
{ |
| 1193 |
return isset($this[$key]); |
| 1194 |
} |
| 1195 |
} |
| 1196 |
|
