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<?php |
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declare(strict_types=1); |
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namespace Gravatalonga\Container; |
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use ArrayAccess; |
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use Closure; |
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use Psr\Container\ContainerInterface; |
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use ReflectionClass; |
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use ReflectionException; |
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use ReflectionFunction; |
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use ReflectionParameter; |
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use Reflector; |
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use function array_key_exists; |
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use function is_callable; |
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/** |
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* Class Container. |
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*/ |
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class Container extends AutoWiringAware implements ArrayAccess, ContainerInterface |
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{ |
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/** |
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* @var ContainerInterface |
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*/ |
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protected static $instance; |
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/** |
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* @var array<string, string> |
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*/ |
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private $aliases = []; |
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/** |
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* @var array<string, mixed> |
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*/ |
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private $bindings; |
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/** |
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* @var array<string, boolean> |
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*/ |
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private $entriesBeingResolved = []; |
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/** |
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* @var array <string, mixed> |
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*/ |
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private $extended = []; |
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/** |
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* @var array<string, mixed> |
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*/ |
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private $resolved = []; |
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/** |
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* @var array<string, mixed> |
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*/ |
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private $share; |
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/** |
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* Container constructor. |
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* |
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* @param array<string, mixed> $config |
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* |
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* @throws NotFoundContainerException |
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*/ |
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public function __construct(array $config = []) |
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{ |
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$this->bindings = $config; |
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$this->share = []; |
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$self = $this; |
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$this->share(ContainerInterface::class, static function () use ($self) { |
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return $self; |
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}); |
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$this->alias(ContainerInterface::class, Container::class); |
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} |
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/** |
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* @param string $entry |
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* @param string $alias |
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* |
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* @throws NotFoundContainerException |
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* |
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* @return void |
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*/ |
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public function alias($entry, $alias) |
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{ |
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if (true === $this->isAlias($entry)) { |
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throw NotFoundContainerException::entryNotFound($entry); |
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} |
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if (false === $this->has($entry)) { |
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throw NotFoundContainerException::entryNotFound($entry); |
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} |
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$this->aliases[$alias] = $entry; |
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} |
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/** |
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* @param string $id |
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* @param callable $factory |
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* |
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* @throws NotFoundContainerException |
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* |
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* @return void |
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*/ |
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public function extend($id, callable $factory) |
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{ |
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if (!$this->has($id)) { |
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throw NotFoundContainerException::entryNotFound($id); |
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} |
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$factory = $factory instanceof Closure ? $factory : Closure::fromCallable($factory); |
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if (true === array_key_exists($id, $this->resolved)) { |
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unset($this->resolved[$id]); |
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} |
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$this->extended[$id][] = $factory; |
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} |
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/** |
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* Factory binding. |
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* |
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* @param string $id |
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* @param callable|mixed $factory |
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* |
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* @return void |
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*/ |
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public function factory(string $id, $factory) |
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{ |
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$this->bindings[$id] = is_callable($factory) ? |
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($factory instanceof Closure ? |
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$factory : |
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Closure::fromCallable($factory)) : |
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$factory; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @throws ReflectionException |
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*/ |
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public function get($id) |
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{ |
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return $this->resolve($id, []); |
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} |
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/** |
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* @return ContainerInterface |
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*/ |
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public static function getInstance() |
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{ |
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return self::$instance; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function has($id) |
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{ |
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return array_key_exists($id, $this->bindings) || |
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array_key_exists($id, $this->share) || |
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array_key_exists($id, $this->aliases); |
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} |
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/** |
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* @param string $id |
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* |
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* @return bool |
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*/ |
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public function isAlias($id) |
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{ |
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return true === array_key_exists($id, $this->aliases); |
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} |
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/** |
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* @param string $id |
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* @param array<string, mixed> $arguments |
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* |
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* @throws NotFoundContainerException |
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* @throws ContainerException|ReflectionException |
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* |
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* @return mixed|object |
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*/ |
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public function make($id, array $arguments = []) |
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{ |
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if (array_key_exists($id, $this->share)) { |
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throw ContainerException::shareOnMake($id); |
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} |
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return $this->resolve($id, $arguments); |
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} |
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/** |
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* @param string $offset |
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* |
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* @return bool |
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*/ |
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public function offsetExists($offset) |
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{ |
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return $this->has($offset); |
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} |
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/** |
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* @param string $offset |
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* |
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* @throws ReflectionException |
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* |
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* @return mixed |
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*/ |
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public function offsetGet($offset) |
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{ |
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return $this->get($offset); |
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} |
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/** |
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* @param string $offset |
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* @param mixed $value |
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*/ |
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public function offsetSet($offset, $value): void |
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{ |
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$this->factory($offset, $value); |
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} |
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/** |
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* @param string $offset |
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* |
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* @return void |
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*/ |
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public function offsetUnset($offset) |
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{ |
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unset( |
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$this->bindings[$offset], |
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$this->share[$offset], |
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$this->resolved[$offset], |
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$this->aliases[$offset], |
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$this->extended[$offset] |
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); |
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} |
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/** |
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* Alias for Factory method. |
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* |
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* @param string $id |
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* @param mixed $factory |
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* |
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* @return void |
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*/ |
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public function set(string $id, $factory) |
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{ |
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$this->factory($id, $factory); |
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} |
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/** |
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* @param ContainerInterface $container |
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*/ |
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public static function setInstance(ContainerInterface $container): void |
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{ |
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self::$instance = $container; |
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} |
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/** |
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* Share rather resolve as factory. |
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* |
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* @param string $id |
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* @param Closure $factory |
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* |
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* @return void |
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*/ |
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public function share($id, Closure $factory) |
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{ |
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if (true === array_key_exists($id, $this->resolved)) { |
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unset($this->resolved[$id]); |
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} |
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$this->share[$id] = $factory; |
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} |
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/** |
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* @param ReflectionParameter[] $params |
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* @param array<string, mixed> $arguments |
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* |
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* @return array<int, string> |
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*/ |
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private function buildDependencies(array $params, array $arguments = []) |
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{ |
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return array_map( |
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function (ReflectionParameter $param) use ($arguments) { |
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if (true === array_key_exists($param->getName(), $this->entriesBeingResolved)) { |
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throw ContainerException::circularDependency(); |
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} |
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$this->entriesBeingResolved[$param->getName()] = true; |
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if (true === array_key_exists($param->getName(), $arguments)) { |
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return $arguments[$param->getName()]; |
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} |
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return $this->autoWiringArguments($param); |
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}, |
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$params |
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); |
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} |
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/** |
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* Get all extenders for particular entry id. |
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* |
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* @param string $id |
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* |
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* @return array|mixed |
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*/ |
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private function getExtenders(string $id) |
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{ |
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return $this->extended[$id] ?? []; |
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} |
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/** |
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* @param string $id |
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* @param array<string, mixed> $arguments |
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* |
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* @throws NotFoundContainerException |
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* @throws ReflectionException |
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* |
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* @return mixed|object |
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*/ |
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private function resolve(string $id, array $arguments = []) |
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{ |
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if (true === array_key_exists($id, $this->resolved)) { |
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return $this->resolved[$id]; |
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} |
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332
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if (true === array_key_exists($id, $this->aliases)) { |
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return $this->resolve($this->aliases[$id], $arguments); |
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} |
335
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336
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if ((false === $this->has($id)) && (true === class_exists($id))) { |
337
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33 |
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$get = $this->resolveClass($id, $arguments); |
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339
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33 |
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foreach ($this->getExtenders($id) as $extend) { |
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$get = $extend($this, $get); |
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33 |
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} |
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27 |
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343
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return $get; |
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} |
345
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27 |
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346
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24 |
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if (true === $this->has($id)) { |
347
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$get = $this->resolveEntry($id, $arguments); |
348
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349
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27 |
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foreach ($this->getExtenders($id) as $extend) { |
350
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$get = $extend($this, $get); |
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} |
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return $get; |
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} |
355
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356
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throw NotFoundContainerException::entryNotFound($id); |
357
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} |
358
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359
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/** |
360
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* @param Reflector $reflection |
361
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* @param array<string, mixed> $arguments |
362
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* |
363
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* @return array<int, mixed> |
364
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*/ |
365
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private function resolveArguments(Reflector $reflection, array $arguments = []) |
366
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{ |
367
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$params = []; |
368
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369
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if ($reflection instanceof ReflectionClass) { |
370
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if (null !== $constructor = $reflection->getConstructor()) { |
371
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$params = $constructor->getParameters(); |
372
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} |
373
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} |
374
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375
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if ($reflection instanceof ReflectionFunction) { |
376
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$params = $reflection->getParameters(); |
377
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} |
378
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379
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$value = $this->buildDependencies($params, $arguments); |
380
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$this->entriesBeingResolved = []; |
381
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382
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return $value; |
383
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} |
384
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385
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/** |
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* @param mixed $id |
387
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* @param array<string, mixed> $arguments |
388
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* |
389
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* @throws ReflectionException |
390
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* |
391
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* @return object |
392
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*/ |
393
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private function resolveClass($id, array $arguments = []) |
394
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{ |
395
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$reflection = new ReflectionClass($id); |
396
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397
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return $reflection->newInstanceArgs($this->resolveArguments($reflection, $arguments)); |
398
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} |
399
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400
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/** |
401
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* @param string $id |
402
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* @param array<string, mixed> $arguments |
403
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|
* |
404
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|
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* @throws ReflectionException |
405
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* |
406
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* @return mixed |
407
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*/ |
408
|
|
|
private function resolveEntry(string $id, array $arguments = []) |
409
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|
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{ |
410
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$get = $this->bindings[$id] ?? $this->share[$id]; |
411
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412
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|
|
if ($get instanceof Closure) { |
413
|
|
|
$reflection = new ReflectionFunction($get); |
414
|
|
|
$value = $reflection->invokeArgs($this->resolveArguments($reflection, $arguments)); |
415
|
|
|
|
416
|
|
|
if (true === array_key_exists($id, $this->share)) { |
417
|
|
|
$this->resolved[$id] = $value; |
418
|
|
|
} |
419
|
|
|
|
420
|
|
|
return $value; |
421
|
|
|
} |
422
|
|
|
|
423
|
|
|
return $get; |
424
|
|
|
} |
425
|
|
|
} |
426
|
|
|
|