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<?php |
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declare(strict_types=1); |
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namespace Cakasim\Payone\Sdk\Container\Binding; |
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use Cakasim\Payone\Sdk\Container\Container; |
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use Cakasim\Payone\Sdk\Container\ContainerException; |
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use ReflectionException; |
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use ReflectionFunction; |
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/** |
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* A binding that uses a callable to resolve |
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* to the underlying value. |
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* |
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* @author Fabian Böttcher <[email protected]> |
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* @since 0.1.0 |
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*/ |
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class CallableBinding implements BindingInterface |
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{ |
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use ProvidesParameterDi; |
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/** |
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* @var Container The container that uses this binding. |
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*/ |
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protected $container; |
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/** |
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* @var string The class / interface type the concrete is bound to. |
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*/ |
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protected $abstract; |
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/** |
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* @var ReflectionFunction The reflection of the callable that returns the underlying value. |
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*/ |
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protected $concrete; |
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/** |
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* @var string[] The callable's parameter types. |
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*/ |
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protected $parameters = []; |
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/** |
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* @var bool|mixed Whether a singleton should be used or the singleton itself. |
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*/ |
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protected $singleton; |
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/** |
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* Constructs the CallableBinding. |
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* |
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* @param Container $container The container that uses this binding. |
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* @param string $abstract The class / interface type the concrete is bound to. |
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* @param callable $concrete The callable that returns the underlying value. |
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* @param bool $singleton Whether or not to use the underlying value as singleton. |
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* |
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* @throws ContainerException If the provided callable does not satisfy the requirements. |
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*/ |
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public function __construct(Container $container, string $abstract, callable $concrete, bool $singleton) |
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{ |
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$this->container = $container; |
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$this->abstract = $abstract; |
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$this->singleton = $singleton; |
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try { |
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$this->concrete = new ReflectionFunction($concrete); |
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} catch (ReflectionException $e) { |
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throw new ContainerException("Cannot create binding for '{$abstract}', failed to create reflection of the callable."); |
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} |
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if (!$this->validateDiParameters($this->concrete->getParameters(), $this->parameters)) { |
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throw new ContainerException("Cannot create binding for '{$abstract}', all parameters of the callable must be type hinted with classes."); |
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} |
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} |
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/** |
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* @throws ContainerException If resolving fails. |
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* @inheritDoc |
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*/ |
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public function resolve() |
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{ |
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if ($this->singleton && $this->singleton !== true) { |
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return $this->singleton; |
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} |
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$parameters = $this->resolveDiParameters($this->container, $this->parameters); |
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$concrete = $this->concrete->invokeArgs($parameters); |
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if (!is_object($concrete)) { |
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throw new ContainerException("Failed resolving of callable bound to '{$this->abstract}', the callable must return an object."); |
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} |
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if (!($concrete instanceof $this->abstract)) { |
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throw new ContainerException("Failed resolving of callable bound to '{$this->abstract}', the return value must be an instance of '{$this->abstract}'."); |
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} |
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if ($this->singleton === true) { |
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$this->singleton = $concrete; |
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} |
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return $concrete; |
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} |
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} |
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Cakasim /
php-payone-sdk
