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<?php |
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namespace mindplay\walkway; |
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use Closure; |
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use Interop\Container\ContainerInterface; |
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use ReflectionFunction; |
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/** |
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* This is an invoker implementation that attempts to resolve parameters directly |
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* provided first, then attempts to have a dependency injection container resolve |
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* the argument by type. |
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* |
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* This provides integration with a number of DI containers via `container-interop`: |
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* |
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* https://github.com/container-interop/container-interop#compatible-projects |
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* |
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* To use this, you will need to install the `container-interop/container-interop` |
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* Composer package. |
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*/ |
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class InteropInvoker implements InvokerInterface |
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{ |
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/** |
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* @var ContainerInterface |
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*/ |
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protected $container; |
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public function __construct(ContainerInterface $container) |
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{ |
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$this->container = $container; |
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} |
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public function invoke(Closure $func, array $params) |
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{ |
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$func_ref = new ReflectionFunction($func); |
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$param_refs = $func_ref->getParameters(); |
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$args = array(); |
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foreach ($param_refs as $param_ref) { |
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if (array_key_exists($param_ref->name, $params)) { |
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$args[] = $params[$param_ref->name]; |
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continue; |
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} |
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$argument_type = $param_ref->getClass(); |
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if ($argument_type && $this->container->has($argument_type->name)) { |
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$args[] = $this->container->get($argument_type->name); |
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continue; |
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} |
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if ($param_ref->isDefaultValueAvailable()) { |
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$args[] = $param_ref->getDefaultValue(); |
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continue; |
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} |
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throw new InvocationException("missing parameter: \${$param_ref->name}", $func); |
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} |
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return call_user_func_array($func, $args); |
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} |
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} |
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mindplay-dk /
walkway
