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<?php |
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declare(strict_types=1); |
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namespace Ray\Di; |
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use Doctrine\Common\Annotations\AnnotationReader; |
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use Doctrine\Common\Annotations\Reader; |
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use Ray\Di\Di\Inject; |
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use Ray\Di\Di\Named; |
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use ReflectionAttribute; |
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use ReflectionClass; |
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use ReflectionParameter; |
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use ReflectionProperty; |
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use function assert; |
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use const PHP_VERSION_ID; |
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/** |
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* Attribute/annotation reader for constructor parameters |
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* |
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* @template T of object |
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*/ |
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class ParameterAttributeReader |
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{ |
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/** @var ?Reader */ |
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private $reader; |
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/** |
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* @Inject(optional=true) |
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* @Named("annotation") |
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*/ |
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#[Inject(optional: true)] |
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#[Named('annotation')] |
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public function setReader(Reader $reader): void |
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{ |
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$this->reader = $reader; |
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} |
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/** |
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* Read the parameter attribute |
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* |
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* Attempts to read the attribute of the parameter, |
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* and if not successful, attempts to read the annotation of the property of the same name |
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* |
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* @param class-string<T> $class |
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* |
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* @return T|null |
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*/ |
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public function get(ReflectionParameter $param, string $class): ?object |
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{ |
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if (PHP_VERSION_ID < 80000) { |
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return $this->readAnnotation($param, $class); |
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} |
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/** @var array<ReflectionAttribute> $attributes */ |
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$attributes = $param->getAttributes($class); |
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if ($attributes === []) { |
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return $this->readAnnotation($param, $class); |
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} |
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$attribute = $attributes[0]; |
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/** @var T $instance */ |
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$instance = $attribute->newInstance(); |
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return $instance; |
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} |
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/** |
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* @param class-string<T> $class |
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* |
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* @return T|null |
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*/ |
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private function readAnnotation(ReflectionParameter $param, string $class) |
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{ |
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$reader = $this->reader ?? new AnnotationReader(); |
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$ref = $param->getDeclaringClass(); |
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assert($ref instanceof ReflectionClass); |
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$prop = new ReflectionProperty($ref->getName(), $param->getName()); |
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return $reader->getPropertyAnnotation($prop, $class); |
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} |
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} |
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ray-di /
Ray.Di
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